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. 2023 Apr 25;18(4):e0284756. doi: 10.1371/journal.pone.0284756

Team-family conflicts over end-of-life decisions in ICU: A survey of French physicians’ beliefs

Mikhael Giabicani 1,2,*, Laure Arditty 3, Marie-France Mamzer 2,4, Isabelle Fournel 5, Fiona Ecarnot 6,7, Nicolas Meunier-Beillard 5,8, Fabrice Bruneel 9, Emmanuel Weiss 1, Marta Spranzi 10, Jean-Philippe Rigaud 11,12, Jean-Pierre Quenot 5,13,14,15
Editor: Jean Baptiste Lascarrou16
PMCID: PMC10128920  PMID: 37098023

Abstract

Introduction

Conflicts between relatives and physicians may arise when decisions are being made about limiting life-sustaining therapies (LST). The aim of this study was to describe the motives for, and management of team-family conflicts surrounding LST limitation decisions in French adult ICUs.

Methods

Between June and October 2021, French ICU physicians were invited to answer a questionnaire. The development of the questionnaire followed a validated methodology with the collaboration of consultants in clinical ethics, a sociologist, a statistician and ICU clinicians.

Results

Among 186 physicians contacted, 160 (86%) answered all the questions. Conflicts over LST limitation decisions were mainly related to requests by relatives to continue treatments considered to be unreasonably obstinate by ICU physicians. The absence of advance directives, a lack of communication, a multitude of relatives, and religious or cultural issues were frequently mentioned as factors contributing to conflicts. Iterative interviews with relatives and proposal of psychological support were the most widely used tools in attempting to resolve conflict, while the intervention of a palliative care team, a local ethics resource or the hospital mediator were rarely solicited. In most cases, the decision was suspended at least temporarily. Possible consequences include stress and psychological exhaustion among caregivers. Improving communication and anticipation by knowing the patient’s wishes would help avoid these conflicts.

Conclusion

Team-family conflicts during LST limitation decisions are mainly related to requests from relatives to continue treatments deemed unreasonable by physicians. Reflection on the role of relatives in the decision-making process seems essential for the future.

Introduction

Although knowledge in the field of intensive care has considerably progressed in recent decades, mortality among patients hospitalized in the intensive care unit (ICU) remains approximately 20% [13]. It is estimated that LST limitation decisions are made in at least half of all deaths that occur in intensive care [4, 5].

In France, as in numerous other countries [6], LST limitation decisions are made within a strict legislative framework that involves a collegial deliberative process [79], which must take into account the patient’s wishes, in particular through written advance directives (ADs) (see S1 File for details of French legislation). However, situations where ADs are known, and/or where the patient is able to express himself/herself are extremely rare [3], and thus, the relatives are often the only persons who can relate the patient’s wishes. Under French law, relatives have no decision-making role and their opinion is only advisory [7, 8]. The final decision is made by the physician (or medical team), who bears the responsibility for the decision, and guarantees its application.

One of the fundamental principles underlying decisions to withhold or withdraw treatment in ICU is the refusal of “unreasonable therapeutic obstinacy” [1012]. The evaluation of unreasonable therapeutic obstinacy requires an assessment of each situation that is partly based on subjective, or even emotional elements and often different between the patient, the relatives, and the medical team [13]. In some cases, these different visions can give rise to disagreements or conflicts surrounding LST limitation decisions between relatives and caregivers. While a worldwide professional consensus has been developed regarding the major ethical end-of-life (EOL) principles, marked variations exist globally, as well as differences within each country and society [6, 12]. In France in particular, the law was originally intended to ensure that patients would not be subjected to unreasonable obstinacy [7, 8, 14, 15]. The legislation subsequently allowed for the possibility for relatives to oppose a medical decision to limit LST by appealing to a judge, suggesting a paradigm shift [16]. Recent case reports of legal proceedings in the literature clearly highlight these problematic situations [17, 18].

Some data on conflict exist in the literature and have led to the development of frameworks and recommendations, as in the United States and Canada [19, 20]. To the best of our knowledge, the current French data on conflicts in the ICU address the issue in a general way, and do not specifically focus on LST limitation decisions [21]. It remains unclear what the current causes of conflicts around LSTs are in the ICU setting, and how these conflicts are managed. Before considering possible practice recommendations, it seems important to document these conflicts in the French medical and legislative context.

The main objective of this study was to describe the sources and management of team-family conflicts surrounding LST limitation decisions in French ICUs. Secondary objectives were to describe physicians’ beliefs about the facilitating factors and potential consequences of these conflicts.

Methods

Study design and population

We performed a national, prospective, observational, multicenter survey of practices among French ICU physicians using an electronic questionnaire sent between June 22, 2021 and October 4, 2021. This survey was performed through a Research Network in Ethics in Critical Care (“Réseau de recherche en éthique en soins critiques”, RESC). The RESC is a network for disseminating information and calling for participation in studies on the topic of ethics in critical care so as to ensure representativeness in terms of type and size of the participating ICUs, and in terms of practices of intensive care physicians.

University and non-university intensive care physicians referenced within the RESC network were contacted electronically to complete the questionnaire. As points of view may vary from one physician to another, several physicians from the same ICU could answer the questionnaire. Only one response to the questionnaire per physician was accepted.

Study questionnaire

A questionnaire was developed comprising 20 questions about respondents’ beliefs and practices in terms of sources and management of conflicts.

The questionnaire was developed by two intensive care physicians. The acquisition of the empirical data underpinning the questionnaire items followed an exploratory phase with a panel of intensive care physicians, two consultants in clinical ethics (a doctor of philosophy and a physician, Clinical Ethics Center for Paris University Hospitals (AP-HP), France) and a professor of medical ethics (Paris Cité University). This exploratory phase was conducted as a qualitative study using in situ observations and semi-structured interviews (open-ended questions in one-to-one interviews) to determine, in combination with previous qualitative data from the literature [22], the potentially important elements for physicians regarding situations of conflict surrounding LST limitation.

The questionnaire and the possible answers to each question were then modified and enriched during a focus group comprising intensive care physicians working in academic and/or non-academic hospitals, a sociologist and a statistician.

Finally, the questionnaire was tested on a new panel of 13 intensive care physicians to judge the understanding and relevance of each item of the questionnaire, as well as the reproducibility of the answers obtained after several proofreadings (test/retest). Some items were rephrased to achieve maximum readability before the final validation of the questionnaire.

The final survey consisted of 20 questions divided into 4 main themes: origin and manifestations of the conflict; conflict management; impact of the conflict; potential ways to prevent conflicts. Among the questions, 7 were on a scale of frequency (yes, all of the time; yes most of the time; sometimes; rarely; never), 4 were scored using a 5-level Likert scale ranging from “completely agree” (+2) to “completely disagree” (-2) and 9 were single or multiple choice questions. Finally, we also recorded the main demographic characteristics of physicians (age, sex, number of years’ experience as an intensive care physician). With the exception of the demographic characteristics, the responses to the questionnaire were exclusive.

The questionnaire is provided in S1 Table.

Distribution of the questionnaire and data collection

The anonymized questionnaire was distributed via the LimeSurvey platform. The distribution of the survey and the data management were performed by the Clinical Investigation Center of University hospital of Dijon (certified ISO 9001128 V2015).

Statistical analysis

Qualitative variables are expressed as numbers (percentages) and were compared using the Chi square or Fisher’s exact test as appropriate. It should be noted that the response categories “yes, all the time” and “yes, most of the time” were merged, as were the categories “rarely” and “never”. For responses on Likert scales, we considered a response rate to be relevant when it was above 50%. For continuous measurements, data are presented as mean ± standard deviation (SD).

Associations between physician grade, junior (≤2 years of critical care experience) or senior (>2 years of critical care experience), and conflict management were explored by univariate analysis.

A p-value <0.05 was considered statistically significant. All analyses were performed using SPSS version 16.0 (SPSS Inc., Chicago, IL).

Ethics statement

The ethics committee of the French Society of Anaesthesia, Critical Care and Perioperative Medecine approved this study (IRB 00010254-2022-014) and waived the need for consent.

Results

Study population

Among the 186 intensive care physicians in the RESC network, 160 (86%) physicians from 85 ICUs answered all the questions. The characteristics of the responding physicians are displayed in Table 1. They were mostly men (sex ratio 1:2), aged 35 to 49 years, with more than 10 years’ experience in ICU practice. They mainly exercised in mixed or medical ICUs, in academic or non-academic public hospitals.

Table 1. Characteristics of the participating intensive care units and physicians.

Participants characteristics (number of respondents) n (%)
Age (n = 148)
 • ≤34 years 35 (24)
 • 35–49 years 75 (51)
 • ≥50 years 38 (26)
Male sex (n = 158) 107 (68)
Grade of respondent (n = 159)
 • Junior physician (≤2 years) 19 (12)
 • Senior physician (>2 years) 140 (88)
Number of years of ICU practice (n = 140)
 • ≤4 years 21 (15)
 • 5–9 years 42 (30)
 • ≥10 years 77 (55)
Type of hospital (n = 160)
 • Non-academic 74 (46)
 • Academic 70 (44)
 • Private 4 (3)
 • Other 12 (7)
Type of ICU (n = 156)
 • Mixed 91 (58)
 • Medical 43 (28)
 • Surgical 14 (9)
 • Pediatric 6 (4)
 • Other 2 (1)

ICU, Intensive Care Unit. Data are expressed as number (percentage).

Origin and manifestations of the conflict

Motives for the conflict

The main reason for conflicts about LST limitation decisions was related to relatives’ opposition to the decision, with relatives believing, unlike the physicians, that the patient is not in a situation of unreasonable obstinacy (66% of respondents). A small minority (5%) of physicians reported conflicts linked to the caregiving team’s refusal to consider an LST limitation procedure.

The relatives objected to a decision to withdraw or withhold treatment in 64% and 36% of cases respectively. The results regarding motives of the conflict are summarized in Fig 1.

Fig 1. Motives for the conflict.

Fig 1

Manifestation of the conflict

Respondents stated that conflicts arise mainly during discussions between relatives and the medical (85%) or paramedical (71%) team; before (37%) or after the collegial meeting (57%). Sixty-two percent of physicians reported aggressiveness or even physical or verbal threats towards caregivers.

Conflict management

The elements of conflict management are displayed in Fig 2. Iterative interviews with relatives are the most widely used and useful tool in trying to resolve the conflict. Offering psychological support and proposing to call on a physician from outside the department are also widely used techniques. Conversely, the intervention of a mobile palliative care team, a local ethics resource or the hospital mediator are rarely used.

Fig 2. Conflict management tools.

Fig 2

ICU, Intensive Care Unit. Data are expressed as percentage.

In the vast majority of cases, the decision is not applied as usual when there is team-family conflict surrounding the decision. Only 19% of physicians reported that they would apply the decision without taking the conflict into account. For more than 85% of respondents, the decision is most often reassessed during new collegial meetings or applied gradually, and sometimes even suspended.

Sixty-six percent of physicians declared that the legal decision-making process is more scrupulously followed when a conflict exists.

Finally, for 66% of respondents, the conflict most often subsides before the patient’s death or discharge. Despite the conflict, 18% of physicians believe that the death of the patient after the LST limitation ultimately represents a form of relief for the relatives.

Potential ways to prevent conflict

Among the suggestions for preventing conflicts, four main elements were highlighted by the physicians: conducting family interviews in a formal way, in a dedicated room, with dedicated time; systematically searching for ADs on ICU admission; setting up free and unlimited visiting hours to facilitate the presence of relatives with the patient; providing families with an “information booklet” dedicated to LST limitation decision and comfort care. However, physicians did not support greater involvement of family members in patient care and medical decisions. Results are displayed in Fig 3.

Fig 3. Potential ways to prevent conflicts.

Fig 3

ICU, Intensive Care Unit; LST, Life Sustaining Therapies. Data are expressed as mean (±SD) on a Likert scale ranging from “completely disagree” (-2) to “completely agree” (+2).

Secondary objectives

Potential factors leading to conflict

Whatever the motive for the conflict, several potential contributing factors were reported. Physicians’ views on potential conflict-promoting factors are presented in S1 Fig. The absence of ADs, the lack of communication between caregivers and relatives, the multitude of relatives or the existence of intra-family disagreements, and the denial or misunderstanding of the medical situation were frequently mentioned as being implicated in creating the conflict. Religious, cultural or ethnic issues were also often mentioned.

The specific data related to the knowledge of the patient’s wishes are presented in S2 File.

Perceived consequences on caregivers and patient’s care

The answers concerning the consequences of the conflicts on the caregivers and on the patient’s care are presented in S2 Fig. Physicians reported major consequences on the psychological exhaustion of caregivers, the meaning of their work and on medical practice.

Impact of physician grade

The answers to the questionnaire were analyzed according to the grade of the responding physicians (junior vs senior physicians). Younger physicians seem to face less conflict than more experienced physicians (p<0.01). However, junior physicians report being less likely to let time pass (12% vs 51%, p<0.01) and more frequently applying the decision without taking the conflict into account than senior physicians (47% vs 18%, p = 0.01). They also more often express a feeling of failure of medical care (81% vs 56%, p = 0.04).

Discussion

This study highlights the issues that can be at the root of team-family conflicts during LST limitation decisions. The main results of this study underline that in the vast majority of cases, conflicts are related to requests from the relatives to continue treatments deemed unreasonable by the caregivers. Potential factors favoring these requests from relatives were identified, such as a lack of knowledge of the patient’s wishes, religious or cultural issues, and a lack of communication. Furthermore, once the conflict is established, it could be relevant to improve its management, notably by making palliative care teams, ethics committees or mediation teams more accessible.

It is established that LST limitation decisions occur in more than half of the deaths that occur in intensive care [3, 23]. In the majority of cases, the relatives agree with LST limitation decisions but in rare cases, relatives can be opposed to the decision, opening the door to potential conflict. While physicians in our study report that these conflicts are infrequent, it was reported in the Conflicus Study that among the conflicts that arise between relatives and caregivers in ICU, EOL issues are one of the primary causes [21]. Other studies have also reported that situations in which LST limitation is being considered are frequently experienced as conflictual, both on the side of caregivers and relatives [2426].

Our work highlights that conflicts arise from a disagreement between relatives and caregivers on the notion of “potential unreasonable obstinacy” when the former consider it appropriate to continue treatment while the latter do not. Several factors could explain this dissensus. Whereas the notion of unreasonable obstinacy is defined in French law as treatments “which appear to be useless, disproportionate or having no other effect than the artificial maintenance of life” [8], the criteria that define it are subjective and appeal to the values and beliefs of each individual [13]. In particular, individuals (patients, physicians, relatives) may have different views of quality of life, suffering and proportionality of treatments [27]. In this context, the patient is the best placed to determine the threshold beyond which treatments are “potentially inappropriate”. By analogy with definitions of “futility” proposed in the past, treatments become “unreasonable” when they are ineffective in achieving a goal, determined by the values and interests of the patient [28, 29].

However, a large proportion of patients admitted in ICU do not have formalized ADs and are unable to express themselves, in which case their own wishes cannot be known [3, 30, 31]. Our study shows that this lack of knowledge is one of the factors leading to potential conflict. In such cases, the only solution for the ICU physician is to refer to family members, which potentially opens the door to a conflict of values. For example, our results show that religious, cultural or ethnic issues could be associated with many conflict situations and other studies have shown that it appears to be an important dimension of EOL decisions [32, 33]. As this type of elements described in our study are potentially subjective [13], we can assume that a disagreement on the profound meaning of the hypothesis of withholding or withdrawing treatment may lead to the conflicts we describe.

Furthermore, our results suggest that prognostic uncertainty and hope for recovery (or a denial of the medical situation) could also be important factors in the team-family disagreement. Uncertainty is common in the practice of medicine, particularly with regard to EOL decisions [34]. In line with our results, a recent qualitative study exploring team-family conflicts in the ICU underlined the role of uncertainty about the patients’ diagnosis or prognosis in reinforcing conflicts [35]. Indeed, families’ misperceptions and misinterpretation of information can lead to differing expectations by physicians and family and often coincide with their disagreement with the proposed treatment decision [3538]. These different expectations about prognosis seem to be common and an association with the beliefs of relatives, especially religious, has been described in the literature [37].

Once this disagreement of principles and values is established, our results suggest that the lack of communication potentiates it into a real conflict. The breakdown of communication between physicians and family-members was frequently mentioned in our results as favoring conflicts, probably insofar as it blocks any possibility for family-members and physicians to find a consensus on the notion of unreasonable obstinacy. Improving communication between physicians and relatives is essential in intensive care, especially in EOL situations [30, 39]. This has been shown to be key to improving the quality of the EOL decision-making process [40, 41]. The lack of communication could also be exacerbated by the lack of intervention of mobile palliative care teams, hospital mediator or local ethics resources observed here, even though this has been shown to be an effective solution to resolve conflict in the past [38].

EOL decisions are often difficult, and must involve the physicians, non-medical caregivers, the patient and the family-members to make the “right” decision [42]. When the patient has lost the capacity to judge quality of life or suffering, it debatable whether the physician has the moral authority to unilaterally make EOL decisions (27). One solution, which is very rarely used by the physicians interviewed in our study, is clinical ethics consultation. This is one of the key elements proposed in other countries to resolve conflicts [19]. In France, this practice is also garnering increasing interest, and its widespread generalization could be a valuable solution [43]. In case of conflict, clinical ethics consultation is a good way to involve all the different stakeholders (physicians, non-medical caregivers, patient, relatives, psychologists..) in making a decision where the notions of autonomy, beneficence/non-maleficence and justice are extensively discussed, in the full respect of the patient’s values [4446].

Team-family conflicts can have a major impact. For caregivers, our results suggest a major psychological impact with a risk of burnout, loss of motivation and increased work anxiety. Interestingly, the Conflicus Study [21] suggested an association between the fatigue felt at work by caregivers and the severity of conflicts. Other studies have also highlighted the risk of burnout or even resignation among caregivers confronted with conflicts, especially as the number, duration or severity of conflicts increases [4749].

Finally, to limit the risk of conflict, the physicians we interviewed suggest a standardization of practices. On the one hand, this would involve optimizing the conditions for collecting the patient’s wishes, in particular by systematically looking for the ADs (written or not). A more concerted effort to find out what the patient’s wishes were, for example by striving to promote ADs, advance care planning and collegial decisional processes throughout care management, would be worth pursuing, to limit the risk of conflict [9, 50]. In this regard, the patient’s healthcare goals should probably be better anticipated and defined, especially for patients with chronic disease, by regularly discussing the patient’s wishes in light of the therapeutic possibilities [51]. On the other hand, according to our results, improving the conditions of communication around EOL decisions seems essential and could help to reach agreement on the threshold of unreasonable obstinacy. In this regard, the need to improve clinicians’ communication skills for eliciting and incorporating patients’ values and preferences into treatment decisions has been underlined [31]. However, while physicians seem inclined in our study to encourage the presence of family members with patients, they do not seem to be in favor of involving the family members in care or in medical decisions, and they also do not think that it would reduce the risk of conflict. Thus, the question of how to include family members in medical decisions will continue to be of great interest in the future [30, 52].

Our study has some limitations. Firstly, this was a survey of physicians’ reported practices and beliefs in France, and therefore, may not generalizable to other countries or cultures. However, the French experience is often cited as a model for reflection on the ethics and quality of end-of-life care in intensive care [53]. Secondly, we cannot exclude selection bias, in particular related to the dissemination of the study information through the RESC network. Indeed, participation was open and it is thus possible that only physicians with a particular interest in this issue answered the questionnaire. However, the variety of participants, as well as the diversity of the ICUs concerned are not in favor of a marked selection bias. Thirdly, nurses and nurses’ aides were not invited to participate in this study. Non-medical caregivers are essential in LST limitation decisions and their opinions would have been interesting, as they are often witnesses to, or even involved in these conflicts. Nonetheless, the present study hypothesized that physicians are often on the front lines of conflict management and they were thus the first to be interviewed to meet the study objective. We intend to investigate the experiences of non-medical caregivers in a subsequent study. Fourth, only the physicians’ opinions were solicited and this study does not assess the perception of conflict by the patients’ families. Fifth, there was no precise definition of conflict given in this study. Definitions of conflict vary widely from one study to another [21, 54]. Insofar as our study did not focus on specific clinical situations, we felt that it was not beneficial to establish strong criteria for defining conflict, in order not to inadvertently orient the physicians’ responses. Finally, our questionnaire included a limited number of questions in order to encourage participation in the study. Although the questionnaire was developed by a multidisciplinary team with different backgrounds, we cannot exclude the possibility that it was not exhaustive and that other unmeasured confounders were not taken into account.

Conclusion

Requests to continue treatments deemed unreasonable by physicians are the main cause of team-family conflicts during LST limitation decisions. The implementation of the decision is most often suspended. Improved communication strategies and recommendations focused on the role of relatives in the decision-making process seem essential for the future.

Supporting information

S1 Table. English translation of the study questionnaire.

(DOCX)

S1 Fig. Physicians’ views on factors leading to conflict.

(TIF)

S2 Fig. Impact of conflicts.

A. On caregivers; B. On patient care. Data are expressed as mean (±SD) on a Likert scale ranging from “completely disagree” (-2) to “completely agree” (+2).

(TIF)

S1 File. Summary of the French LST limitation decision-making process.

(DOCX)

S2 File. Knowledge of the patient’s wishes.

(DOCX)

S3 File. Minimal data set.

(XLSX)

Acknowledgments

We thank Delphine Pecqueur for her help in the data management.

List of abbreviations

ADs

Advance directives

EOL

End-of-life

ICU

Intensive care unit

LST

Life-sustaining therapies

RESC

Réseau de recherche en éthique en soins critiques

SD

Standard deviation

Data Availability

All relevant data are within the paper and its Supporting Information files.

Funding Statement

The author(s) received no specific funding for this work.

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Decision Letter 0

Jean Baptiste Lascarrou

2 Feb 2023

PONE-D-23-00209Team-family conflicts over end-of-life decisions in ICU: a survey of practicesPLOS ONE

Dear Dr. Giabicani,

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Additional Editor Comments:

In spite of an undeniable interest, the 3 reviewers have made remarks that need to be taken into account in full before to submit a new version of the manuscript.

[Note: HTML markup is below. Please do not edit.]

Reviewers' comments:

Reviewer's Responses to Questions

Comments to the Author

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Reviewer #1: No

Reviewer #2: Partly

Reviewer #3: Partly

**********

2. Has the statistical analysis been performed appropriately and rigorously?

Reviewer #1: I Don't Know

Reviewer #2: Yes

Reviewer #3: I Don't Know

**********

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Reviewer #1: Yes

Reviewer #2: Yes

Reviewer #3: Yes

**********

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Reviewer #2: No

Reviewer #3: Yes

**********

5. Review Comments to the Author

Please use the space provided to explain your answers to the questions above. You may also include additional comments for the author, including concerns about dual publication, research ethics, or publication ethics. (Please upload your review as an attachment if it exceeds 20,000 characters)

Reviewer #1: I thank Dr Giabicani Song for giving the opportunity to review the article entitled “Team-family conflicts over end-of-life decisions in ICU: a survey of practices”. The topic is important. However, I have major concerns about this research.

– The title is misleading. Indeed, the manuscript does not report “a survey of practices” (i.e. what is done), but “ a survey of French ICU physicians beliefs”.

– The methods of a questionnaire-based study on physician belief is not appropriate to study EOL practices in ICU and their consequences. A detailed description of decision making process should be provided. Non medical caregivers should be involved. A clear definition of conflict should be prospectively provided.

– The sample size calculation is not provided. The number of physcians included in the survey is quite small compared to the overall number of ICU physicians in France. How many ICUs were involved in the study? And how many physicians from each participating ICU were included in the survey?

– I disagree with authors stating “few data exist in the literature about situations of team-family conflicts regarding decisions to limit LST”. Many studies on conflicts in ICU and their cause have been reported for many decades. Please, see also this clinical review on the topic “Withdrawing life support and resolution of conflict with Families” published twenty years ago.

– The decision-making process is not reported. Involvement of relatives is poorly discussed. The reader is told only about what relatives “think” but not about the discussions, their number, who was involved… Involvement of non medical caregivers is a key issue in EOL decisions and is not discussed at all (excepted in the limitation section).

As a consequence, the manuscript adds nothing to the current knowledge to the topic. It is also hard for the reader to identify clear perspectives.

Last, the manuscript is too long and could be shortened. Some examples:

o in the introduction section, paragraphs from lines 65 to 95 provide only general well known information on EOL decisions and could be strongly shortened.

o Methods: “definition of conflict” should be removed, as authors clearly state conflicts were not a priori defined in the current study.

o Discussion: the section from line 316 to line 345 does not discuss the results of the study and could be shortened.

Reviewer #2: Thank you for asking me to review this paper. The research theme, conflicts between ICU teams and relatives, is particularly relevant. The questionnaire used provides many results. The high participation rate increases the power of these results.

However, I would recommand that the manuscript be completely and extensively revised to provide a clear and mening full message.

- The aim of the study is not clear and well defined (« to conduct a survey »), particularly in the abstract. The objective, with the 4 themes developed, is very broad.

- The methodological choice of questionnaire construction should be based on qualitative research references. The choice of questioning physicians who are members of a research network in ethics in intensive care is an important bias. It would have been interesting to have a cross evaluation of the perceptions of the paramedical staff.

- The results are very (too?) numerous.

o Table titles are not concise.

o Missing data is questionable.

o It is difficult to understand why the results begin with the paragraph about the patient's wishes. We would like to know the motives for the conflicts first. For the results regarding the reasons for the conflict, we would like to have a figure that illustrates the physicians' responses. It is not clear whether the responses to the questionnaire were exclusive or not. Finally, we do not have a very clear idea of the motives for the conflicts.

o The results of the figures are too numerous and difficult to read. I would recommend to invert the color code and the arrangement between "rarely" and "most of the time". We do not understand why there are A B C in the figures. It is not known whether a response rate cut-off is used by the authors to consider a response as relevant

o Sometimes the terms used in the results immediately suggest an interpretation (« interestingly » for example)

Furthermore, the manuscript is too long. It would deserve a complete English revision with particular attention to the terms chosen and the maintenance of these terms throughout the manuscript

Reviewer #3: The paper faces the topic of teams and family conflicts during LST limitation decisions in adult ICU patients.

The topic is mainly about ethics, as indicated at lines 318-321

However, the matter is not elaborated enough in the questionnaire nor investigated in the discussion.

Thus, in general I would suggest to:

analyze the literature on the matter of ethical issues in ICU and the role of ethics consultation.

Specifically, to elaborate the sentence (320-323):

Whereas the notion of unreasonable obstinacy is defined in French law as treatments … the concept remains vague and subjective and appeals to the values and beliefs of each individual. Only the patient himself is in a position to determine the threshold beyond which treatments are “potentially inappropriate”.

1) If the concept is too vague, it is very difficult to talk and discuss it. The topic is instead very complex and presents different criteria.

2) If only the patient can define the meaning, what would be the role of doctors, caregivers, psychologists and ethics consultants? How do they behave with the subject, without him being replaced?

**********

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Reviewer #1: No

Reviewer #2: No

Reviewer #3: No

**********

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PLoS One. 2023 Apr 25;18(4):e0284756. doi: 10.1371/journal.pone.0284756.r002

Author response to Decision Letter 0


13 Mar 2023

To: Dr. Lascarrou, Editor, PLoS One

Dieppe, 9th March 2023

Re: Manuscript # Submission ID PONE-D-23-00209

Dear Doctor Lascarrou,

Thank you for your review of our article cited in reference, and for giving us the opportunity to submit a revised version of our manuscript for further consideration.

We are also most grateful to the editor and reviewers for their comments and constructive criticism, which have allowed us to strengthen our manuscript and clarify the key messages.

As requested, we provide our point-by-point responses to all comments and suggestions, together with marked-up and clean versions of the revised manuscript. The first two reviewers asked to shorten the manuscript while the third asked to add information. We tried to do our best to accommodate these requests.

Thank you in advance for your consideration of our revised manuscript, and we look forward to hearing back from you again in due course.

Yours sincerely,

Mikhael Giabicani, MD

On behalf of all authors

Reviewer #1: I thank Dr Giabicani Song for giving the opportunity to review the article entitled “Team-family conflicts over end-of-life decisions in ICU: a survey of practices”. The topic is important. However, I have major concerns about this research.

We thank the reviewer for the useful comments and suggestions, which have enabled us to improve our manuscript and clarify the key messages. We have revised our manuscript according to your suggestions as far as possible.

Comments:

– The title is misleading. Indeed, the manuscript does not report “a survey of practices” (i.e. what is done), but “a survey of French ICU physicians beliefs”.

Thank you for pointing this out. In line with the Reviewer’s suggestion, we have modified the title to the following:

“Team-family conflicts over end-of-life decisions in ICU: a survey of French physicians’ beliefs.”

– The methods of a questionnaire-based study on physician belief is not appropriate to study EOL practices in ICU and their consequences.

We thank the reviewer for these comments. Insofar as we have re-focused the objective of the study on the source and management of the conflict, we believe that this part of the study can indeed be adequately addressed by a questionnaire survey.

A detailed description of decision making process should be provided.

We have added a description of the French decision-making process in the supplementary files. This is now well codified in France by several successive pieces of legislation (laws dating from March 4, 2002; April 22, 2005; and February 2, 2016).

Non medical caregivers should be involved.

We fully agree with the Reviewer that the involvement of non-medical caregivers would be important, and that their answers would have been very interesting. Nonetheless, in the present study, we hypothesized that physicians were often on the front line of conflict management with families in the ICU setting. Therefore, the physicians were the first to be interviewed on this issue. We intend to investigate the opinions and experiences of non-medical caregivers in a second study. We have emphasized this limitation in the discussion section.

A clear definition of conflict should be prospectively provided.

We acknowledge that we did not use a strict and precise definition of conflict. Indeed, the definition of “conflict” varies widely from one study to another [1,2]. Insofar as our study did not focus on specific clinical situations but aimed to report on medical practices in general terms, we believe that a precise definition might have unduly oriented the physicians’ responses, and therefore, would have introduced potential bias.

To take the Reviewer’s remark into account, we have removed the conflict definition paragraph and we have added this point to the discussion section.

– The sample size calculation is not provided. The number of physcians included in the survey is quite small compared to the overall number of ICU physicians in France. How many ICUs were involved in the study? And how many physicians from each participating ICU were included in the survey?

The Reviewer raises a pertinent point. We did not perform a priori sample size calculation, as this was not a randomized trial. However, we agree with the Reviewer that the number of physicians is small compared to the overall number of ICU physicians in France. Nevertheless, the number of responses obtained is comparable to that reported in previous work by our group, published in this journal, and using similar methodology [3,4].

In the present study, a total of 85 ICUs were involved, and on average, about 2 physicians per center responded. We have added this information in the results section. Despite the overall number of respondents being relatively low, the recruitment of centres was nonetheless representative of ICUs across France, with centres of varying specialty, size and work practice.

– I disagree with authors stating “few data exist in the literature about situations of team-family conflicts regarding decisions to limit LST”. Many studies on conflicts in ICU and their cause have been reported for many decades. Please, see also this clinical review on the topic “Withdrawing life support and resolution of conflict with Families” published twenty years ago.

We thank the reviewer for bringing this useful publication to our notice. To take the Reviewer’s comment into account, we have removed the cited sentence from the introduction, and emphasized the specificities of the French model, notably the absence of French recommendations on conflict management. We have also specified the purpose of the study and the data that warranted further exploration, in relation to the existing literature.

– The decision-making process is not reported. Involvement of relatives is poorly discussed. The reader is told only about what relatives “think” but not about the discussions, their number, who was involved… Involvement of non medical caregivers is a key issue in EOL decisions and is not discussed at all (excepted in the limitation section).

We thank the reviewer for this comment. We recognize that this survey does not cover all the issues inherent in team-family conflicts. Firstly, the questionnaire was developed after an exploratory phase conducted as a qualitative study with a panel of ICU physicians, two consultants in clinical ethics and a professor of medical ethics. Secondly, we did not analyze specific clinical situations. Such individual analysis would have enabled us to report precise information on the involvement of relatives and non-medical caregivers in decision-making. These data will be explored in a specific study that we are currently setting up, and which will be initiated in the coming months. Thirdly, as mentioned above, we have re-focused the study’s objective and main results on what is relevant to physicians’ practices and placed the results related to physicians’ beliefs, such as what relatives “think”, in the supplemental data.

Finally, as mentioned in comment 2, we agree that the non-medical caregivers are essential and that their answers would have been very interesting. We have added to the discussion by underlining the involvement of relatives and non-medical caregivers in EOL decisions.

As a consequence, the manuscript adds nothing to the current knowledge to the topic. It is also hard for the reader to identify clear perspectives.

We thank the Reviewer for the pertinent comments and hope that the corrections will highlight clear perspectives.

Last, the manuscript is too long and could be shortened. Some examples:

o in the introduction section, paragraphs from lines 65 to 95 provide only general well known information on EOL decisions and could be strongly shortened.

o Methods: “definition of conflict” should be removed, as authors clearly state conflicts were not a priori defined in the current study.

o Discussion: the section from line 316 to line 345 does not discuss the results of the study and could be shortened.

Thank you for these useful suggestions, we have reduced the manuscript accordingly.

Reviewer #2:

Thank you for asking me to review this paper. The research theme, conflicts between ICU teams and relatives, is particularly relevant. The questionnaire used provides many results. The high participation rate increases the power of these results.

We thank the Reviewer for the positive appreciation of our work and for the pertinent comments, which will help to strengthen our manuscript. Our point-by-point responses are given below.

- The aim of the study is not clear and well defined (« to conduct a survey »), particularly in the abstract. The objective, with the 4 themes developed, is very broad.

We thank the reviewer for this comment. As suggested by the Reviewer and also by another Reviewer, we now emphasize the specificities of the French model in the introduction, notably the absence of recommendations on conflict management. We also give a clearer statement of the study aim, and the data that warranted further exploration, in relation to the existing literature.

We have rephrased the primary objective to focus on the object of the conflict, and on the issues that relate to physicians’ practices (conflict management). We have moved the content related to physicians’ beliefs to the secondary objectives.

We also clarified the aim of the study in the abstract.

- The methodological choice of questionnaire construction should be based on qualitative research references.

The Reviewer raises a valid point, with which we fully agree. The development of the questionnaire should be based on qualitative research. We conducted an exploratory phase, which produced the empirical data on which the questionnaire items were based. This was conducted as a qualitative study using semi-directed interviews. This methodological point has been clarified in the manuscript. As suggested by the Reviewer, we also added suitable references.

- The choice of questioning physicians who are members of a research network in ethics in intensive care is an important bias.

We agree with the Reviewer that the distribution of the questionnaire within a research network in ethics in intensive care may introduce potential for bias. However, in the same way as research networks on sepsis or mechanical ventilation, the Research Network in Ethics in Critical Care (“RESC”) is more generally speaking a network for disseminating information and calling for participation in studies on the topic of ethics in critical care, than a network of physicians specializing in this field. In addition, the physicians in the research network were free to distribute the questionnaire to other physicians not referenced in the RESC. Also, dissemination through this network enabled us to achieve greater representativeness in terms of the type and size of participating ICUs, as well as in terms of ICU physician practices. It further ensured a higher response rate. We have emphasized this point in the Methods section and in the Discussion.

- It would have been interesting to have a cross evaluation of the perceptions of the paramedical staff.

Again, the Reviewer raises a pertinent point that was also raised by Reviewer #1. We fully agree that the perceptions of the paramedical staff are essential, and that their views would have been very interesting. This is an undeniable limitation of our survey. Nonetheless, we hypothesized that physicians were often on the front line of conflict management with families in the ICU setting, and they were thus the first to be interviewed on this issue. We intend to pursue our work, and interview non-medical caregivers in a second project that will comprise a qualitative survey (to develop the questionnaire) and then a quantitative study (using the questionnaire).

We have emphasized this limitation in the discussion.

- The results are very (too?) numerous.

o Table titles are not concise.

Thank you for pointing this out. We have simplified the titles, tables and figures and have moved some results to the supplementary files.

o Missing data is questionable.

The Reviewer raises a good point. However, it should be noted that the missing data only concerned the characteristics of the responding physicians. The results were complete for the questionnaire items about conflict management. Indeed, to encourage participation in the survey, we did not make the questions about their characteristics obligatory, in order to avoid discouraging the participation of potential respondents who did not want to reveal personal data. For the rest of the survey, there was no missing data. We have added these points in the Methods section.

o It is difficult to understand why the results begin with the paragraph about the patient's wishes. We would like to know the motives for the conflicts first. For the results regarding the reasons for the conflict, we would like to have a figure that illustrates the physicians' responses. It is not clear whether the responses to the questionnaire were exclusive or not. Finally, we do not have a very clear idea of the motives for the conflicts.

We thank the Reviewer for this pertinent suggestion. We have moved the motives for conflict to the beginning of the results section. The information about the patient's wishes has been moved to the supplementary data, since this was not part of the primary objective.

As suggested by the Reviewer, we added a new figure that illustrates the physicians’ responses regarding the reasons for the conflict. We clarified the motives for the conflicts in the manuscript.

Finally, the responses to the questionnaire were exclusive. There were no missing data (except for the characteristics of the ICUs and physicians). Physicians were also given the opportunity to insert free-text comments if they wished to clarify their response.

o The results of the figures are too numerous and difficult to read. I would recommend to invert the color code and the arrangement between "rarely" and "most of the time". We do not understand why there are A B C in the figures. It is not known whether a response rate cut-off is used by the authors to consider a response as relevant.

We thank the Reviewer for raising these pertinent comments about the figures. As also suggested by Reviewer #1, we have refocused the main objective of the study and moved some of the results to the supplementary files.

We have simplified figures to make them easier to read.

As suggested by the Reviewer, we have inverted the color code and the arrangement between “rarely” and “most of the time”.

We simplified Figure 1 by removing items that were redundant and by putting all the items on a single figure.

For responses on Likert scales, we considered a response rate to be relevant when it was above 50%. We have added this point in the Methods section.

o Sometimes the terms used in the results immediately suggest an interpretation (« interestingly » for example)

As suggested by the Reviewer, we have removed all terms of interpretation from the results section.

Furthermore, the manuscript is too long. It would deserve a complete English revision with particular attention to the terms chosen and the maintenance of these terms throughout the manuscript.

Again, the Reviewer raises a valid point that was also raised by Reviewer #1. We have shortened the manuscript to focus on clear perspectives. Finally, the manuscript has been thoroughly revised by a native English-speaking researcher.

Reviewer #3:

The paper faces the topic of teams and family conflicts during LST limitation decisions in adult ICU patients.

The topic is mainly about ethics, as indicated at lines 318-321

However, the matter is not elaborated enough in the questionnaire nor investigated in the discussion.

Thus, in general I would suggest to:

analyze the literature on the matter of ethical issues in ICU and the role of ethics consultation.

We thank the Reviewer for this useful suggestion. We have added a paragraph to the discussion about the undeniable value of clinical ethics consultation in cases of conflict.

Specifically, to elaborate the sentence (320-323):

Whereas the notion of unreasonable obstinacy is defined in French law as treatments … the concept remains vague and subjective and appeals to the values and beliefs of each individual. Only the patient himself is in a position to determine the threshold beyond which treatments are “potentially inappropriate”.

1) If the concept is too vague, it is very difficult to talk and discuss it. The topic is instead very complex and presents different criteria.

We thank the Reviewer for raising this point. We have clarified this point in the discussion about the determination of unreasonable obstinacy.

2) If only the patient can define the meaning, what would be the role of doctors, caregivers, psychologists and ethics consultants? How do they behave with the subject, without him being replaced?

Again, the Reviewer raises an important point. We have added a paragraph on clinical ethics consultations, and their utility in balancing the principles of autonomy, beneficence and justice from the perspective of each stakeholder (physicians, caregivers…), while focusing the reflection on the patient’s values.

References for the Responses to Reviewers:

1. Azoulay E, Timsit JF, Sprung CL et al. (2009) Prevalence and factors of intensive care unit conflicts: the conflicus study. Am J Respir Crit Care Med 180:853-860. doi:10.1164/rccm.200810-1614OC

2. Way J, Back AL, Curtis JR (2002) Withdrawing life support and resolution of conflict with families. BMJ 325:1342-1345. doi:10.1136/bmj.325.7376.1342

3. Quenot JP, Jacquier M, Fournel I, Meunier-Beillard N, Grange C, Ecarnot F, Labruyere M, Rigaud JP, group RS (2023) Non-beneficial admission to the intensive care unit: A nationwide survey of practices. PLoS One 18:e0279939. doi:10.1371/journal.pone.0279939

4. Rigaud JP, Giabicani M, Meunier-Beillard N, Ecarnot F, Beuzelin M, Marchalot A, Dargent A, Quenot JP (2018) Non-readmission decisions in the intensive care unit under French rules: A nationwide survey of practices. PLoS One 13:e0205689. doi:10.1371/journal.pone.0205689

Attachment

Submitted filename: PlosOne_response to reviewers.docx

Decision Letter 1

Jean Baptiste Lascarrou

10 Apr 2023

Team-family conflicts over end-of-life decisions in ICU: a survey of French physicians’ beliefs

PONE-D-23-00209R1

Dear Dr. Giabicani,

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PLOS ONE

Reviewers' comments:

Acceptance letter

Jean Baptiste Lascarrou

14 Apr 2023

PONE-D-23-00209R1

Team-family conflicts over end-of-life decisions in ICU: a survey of French physicians’ beliefs

Dear Dr. Giabicani:

I'm pleased to inform you that your manuscript has been deemed suitable for publication in PLOS ONE. Congratulations! Your manuscript is now with our production department.

If your institution or institutions have a press office, please let them know about your upcoming paper now to help maximize its impact. If they'll be preparing press materials, please inform our press team within the next 48 hours. Your manuscript will remain under strict press embargo until 2 pm Eastern Time on the date of publication. For more information please contact onepress@plos.org.

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Thank you for submitting your work to PLOS ONE and supporting open access.

Kind regards,

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on behalf of

Dr. Jean Baptiste Lascarrou

Academic Editor

PLOS ONE

Associated Data

    This section collects any data citations, data availability statements, or supplementary materials included in this article.

    Supplementary Materials

    S1 Table. English translation of the study questionnaire.

    (DOCX)

    S1 Fig. Physicians’ views on factors leading to conflict.

    (TIF)

    S2 Fig. Impact of conflicts.

    A. On caregivers; B. On patient care. Data are expressed as mean (±SD) on a Likert scale ranging from “completely disagree” (-2) to “completely agree” (+2).

    (TIF)

    S1 File. Summary of the French LST limitation decision-making process.

    (DOCX)

    S2 File. Knowledge of the patient’s wishes.

    (DOCX)

    S3 File. Minimal data set.

    (XLSX)

    Attachment

    Submitted filename: PlosOne_response to reviewers.docx

    Data Availability Statement

    All relevant data are within the paper and its Supporting Information files.


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