Abstract
Background.
We designed the Collaborative Approach to Reach Everyone with familial hypercholesterolemia (CARE-FH) clinical trial to improve FH screening in primary care and facilitate guideline-based care.
Objective.
The goal was to incorporate perspectives from end-users (healthcare system leaders, primary care clinicians, cardiologists, genetic counselors, nurses, and clinic staff) and improve translation of screening guidance into practice.
Methods.
We partnered with end-users to sequentially define the current state of FH screening, assess acceptability, feasibility, and appropriateness of implementing an FH screening program, and select clinically actionable strategies at the patient-, clinician-, and system-level to be deployed as a package in the CARE-FH clinical trial. Methods informed by implementation science and human centered design included: contextual inquiries, surveys, and deliberative engagement sessions.
Results.
Screening for FH occurred rarely in primary care, and then only after a cardiovascular event or sometimes due to a family history of high cholesterol or early heart attack. Surveys suggested FH screening in primary care was acceptable, appropriate, and feasible. Reported and observed barriers to screening include insufficient time at patient encounters to screen, cost and convenience of testing for patients, and knowledge regarding causes of dyslipidemia. Facilitators included clear guidance on screening criteria and new therapies to treat FH. These results led to the development of multilevel strategies that were presented to end-users, modified, and then pilot tested in one primary care clinic.
Conclusions.
A refined implementation strategy package for FH screening was created with a goal of improving FH awareness, identification, and initiation of guideline-based care.
Clinical trial registration.
https://clinicaltrials.gov/study/NCT05284513?id=NCT05284513&rank=1 Unique Identifier: NCT05284513
Keywords: familial hypercholesterolemia, identification, implementation science, human centered design, implementation strategies
Graphical Abstract

INTRODUCTION
Routine screening of cholesterol levels is recommended in primary care practices for atherosclerotic cardiovascular disease (ASCVD) prevention in children and adults.1–3 Screening of cholesterol and genetic testing is important to identify individuals with familial hypercholesterolemia (FH).4–6 Approximately 17,500 deaths per year and 20% of heart attacks in people under the age of 45 are attributable to FH.7 If FH is identified in childhood or young adulthood, future cardiovascular events can be prevented.4 However, fewer than 20% of children have had a lipid profile measured in the United States and young adults are less likely to have a lipid profile obtained than older adults.8–10 This is a significant evidence-to-practice gap confirmed by Geisinger’s MyCode Community Health Initiative (MyCode®), an exome sequencing population screening project.11,12 FH genetic variants were identified in 1:212 of the first 90,000 participants; 85% of those were undiagnosed, 42% were under- or un-treated, and 32% had experienced ASCVD.13
We designed the Collaborative Approach to Reach Everyone with FH (CARE-FH) clinical trial to improve FH screening in primary care and facilitate guideline-based lipid lowering.14 The goal was to incorporate perspectives from end-users (health care system leaders, primary care clinicians, cardiologists, genetic counselors, nurses, and clinic staff) and improve evidence-based cholesterol screening guidelines translation into clinical practice.15–17 We used methods from implementation science and human centered design to identify strategies to alter care infrastructure and workflows, identify education gaps, and improve deployment of interventions to achieve improved adherence to guidelines.15–21
This manuscript describes the results of this investigation to develop the CARE-FH clinical trial. Partnering with stakeholders, we sequentially 1) defined the current state of FH screening and identification, 2) assessed the acceptability, feasibility, and appropriateness of implementing an FH screening program, and 3) collaboratively developed implementation strategies to be deployed as a package in the CARE-FH clinical trial. Transparency about how an intervention is deployed and reporting findings will allow internal improvement and generalizability of findings to other practice settings.
METHODS
During this development phase of the CARE-FH clinical trial, investigators and study personnel were organized into teams.14 The implementation science team sought to understand the current state of and perspectives on cholesterol screening practices at Geisinger and develop solutions to overcome barriers to implementation. The medical science team developed the evidence-based screening protocol and provided feedback to the implementation science team regarding feasibility of the solutions and ensured clinical support for the project. The informatics and data science team developed electronic health record (EHR) tools to support implementation, data retrieval tools to monitor study outcomes, and statistical support for trial design. This study was approved by the Geisinger Institutional Review Board (IRB#2021–0927) and CARE-FH is a registered clinical trial (NCT05284513).
Data Collection
The following methods were used contextual inquiries, surveys, and deliberative engagement sessions to collect data on the current state of FH screening, the acceptability, appropriateness, and feasibility of an FH screening program and to facilitate the collaborative development of an implementation strategy package in the primary care setting (Table 1). Clinicians working in the primary care settings (e.g., family practice, internal medicine, and pediatrics) were asked to participate in this study. The implementation strategy package was piloted in one clinic.
Table 1.
Purpose, participants, and data collection to co-develop the implementation strategy package
| Purpose | Participants | Data collection |
|---|---|---|
| Current state of FH screening | 1) Primary care clinicians in internal medicine, family medicine, and pediatrics; 2) specialists in cardiology and lipidology, both pediatric and adult | Contextual inquiries (observations with semi-structured interviews) |
| Acceptability, appropriateness, and feasibility of a FH screening program | Primary care clinicians, including physicians, nurse practitioners, physician assistants, and trainees (residents and fellows), practicing in community medicine, internal medicine, and pediatrics | Survey |
| Collaborative development of implementation strategy package | Session 1: 1) Clinicians from the medical science team of the study; 2) clinicians deemed to have a vested interest in the development of implementation strategies Session 2: Refine by clinicians at the primary care clinic |
Deliberative engagement sessions |
| One primary care clinic | Trialability (pilot testing) of the implementation strategy package at one clinic |
Current state of FH screening
Contextual inquiries were conducted with clinicians caring for undiagnosed FH patients. Participants were identified using a combination of purposive, convenience, and snowballing sampling and then invited via email. Contextual inquiries were conducted by experienced qualitative researchers, and consisted of observing clinical workflow followed by in-depth, semi-structured interviews (Appendix 1). Observations focused on interactions with patients who had elevated cholesterol levels. Additional qualitative interviews were conducted with clinicians that were not observed (to ensure saturation of ideas), transcribed verbatim and reviewed for accuracy. Participants were asked to describe experiences diagnosing and treating patients with FH and to propose ideas about the ideal state for this process. Findings were articulated in journey maps, which visualize clinician thought and action processes regarding FH workflow, highlight barriers and facilitators to FH care, and reveal opportunities for potential interventions to improve screening.
Acceptability, appropriateness, feasibility of a FH screening program
Surveys were conducted to assess acceptability, appropriateness, and feasibility of an FH screening program system-wide. All eligible stakeholders were invited to complete a survey. The survey contained 7 demographic questions, 1 confidence question, 12-item validated Acceptability of Implementation Measure (AIM), Implementation Appropriateness Measure (IAM), and the Feasibility of Intervention Measure22 (using “a program for FH”), and 4 open ended questions.
Electronic surveys were distributed to the same clinicians eligible for contextual inquiries, via e-mail to determine the readiness to implement the specific proposed screening program for FH in primary care at Geisinger (Appendix 2). The survey included a description of the proposed program and the clinical importance of identifying and treating individuals with FH.
Solutions incorporated in the implementation strategy package
Solutions brought forward by participants from contextual inquiries and surveys that addressed barriers were recorded and transformed into the implementation strategy package using a systematic approach of developing implementation strategies, called implementation mapping.23,24 The package comprised a collection of all such suggestions including definitions of how the intervention will be implemented, by whom, who would receive it, and how often it would be delivered. Additional stakeholder meetings were held to troubleshoot solutions to barriers identified.
Collaborative development of the implementation strategy package
These implementation strategies, based on initial feedback from the surveys and contextual inquiries (Appendix 3), were discussed at a deliberative engagement session. Clinicians discussed opportunities for addressing FH care gaps while providing feedback regarding implementation strategies selected. A summary of findings and draft versions of journey maps created through the contextual inquiry process were shared with clinicians from the medical leadership team to facilitate feedback and discussion (Appendix 4). Participants were then re-presented with a revised multi-level package of implementation strategies (including patient-level, clinician-level, and system-level strategies) during a medical leadership team meeting where further feedback and approval was elicited.
One primary care clinic volunteered as a pilot site. The implementation strategy package included: patient outreach, clinician education and training, clinician notification, and standardized screening documentation (through EHR tools). A second deliberative engagement session occurred after pilot testing with clinicians from the pilot site to further refine the implementation strategy package prior to the start of the CARE-FH clinical trial (Appendix 5).
Data Analysis
Current state of FH screening
Rapid data extraction and analysis method of rapid analysis is a templated approach using spreadsheet software to iteratively organize, reduce, and summarize qualitative findings for applied research.25,26 Affinity mapping is a method of organizing qualitative data by grouping like with like to identify themes.25,26 Clinician interview responses were categorized by level of experience with screening, diagnosis, and managing patients with FH.
Data tables were created from the affinity maps which illustrated common beliefs about the current state of FH care among both primary care and cardiology clinicians. Affinity map data included: reasons for appointments in primary care, reasons for referrals for specialty care, the process to diagnosis FH, educational and clinical resources available, role of other clinicians in the diagnostic process, information provided to patients about the FH diagnosis, and the clinical management plan.
Acceptability, feasibility, appropriateness of a FH screening program
Descriptive statistics were reported for the demographics and the 12-item AIM, IAM, and FIM.22 Responses to the four open ended questions were uploaded into Atlas.ti (Scientific Software, Inc) for data management and coded for positive and negative responses. Relevant themes related to each question and explementary quotes were extracted.
Collaborative development of the implementation strategy package
Deliberative engagement sessions were recorded, transcribed, and de-identified. A rapid qualitative analysis approach was used to review summary notes taken during the sessions and to triangulate data from them with themes that emerged from the sessions.26 These data were used to revise the initial implementation strategies in the package deployed at the pilot site. Feedback from the pilot site enabled further refinement. Descriptive statistics of outcomes assessed at the pilot site were reported from September to November 2022.
RESULTS
Current state of FH screening
Twelve contextual inquiries that consisted of both observations and interviews and three additional interviews were conducted with clinicians, with equal representation from primary care and cardiology. Two clinicians were board-certified lipidologists. Six clinicians had experience caring for individuals with FH, five of whom were cardiologists, and the other was a primary care clinician. Two of the six interviewed primary care clinicians reported no experience caring for individuals with FH.
Facilitators to screening and guideline-directed care were categorized into the following domains: screening guidelines, diagnostic criteria, novel therapies, and interdisciplinary approach to FH care (Appendix 6). Screening guidelines provide clinicians with clear information regarding FH screening, including defined patient ages for lipid screening and scenarios for when to perform cascade family testing. The interdisciplinary nature of FH care (primary care, cardiology, nutrition, genetics, pharmacy, and other departments) helped clinicians collaborate to better screen, diagnose, and treat FH patients. Recent innovations in lipid-lowering drug therapies provide hope to clinicians and patients for achieving desired low-density lipoprotein cholesterol (LDL-C) metrics and improving overall quality of life.
Diverse and multi-faceted barriers were categorized into the following domains: cost, documentation unavailable, time, notification process, emphasis of prevention, knowledge, experience, and insurance coverage (Appendix 7). Clinicians were concerned about costs to patients for screening tests, novel therapies, and specialty care that may prevent treatment. Clinicians felt the short time available to meet with patients prevented them from performing all desired clinical tasks during a patient encounter, which may include performing a thorough family history, a FH workup, and any subsequent patient education. Patients in the primary care environment may present with higher priority acute issues. Alert fatigue might cause clinicians to miss important information. Clinicians also reported difficulties in connecting FH recognition with the appropriate clinical guidelines for diagnosis and treatment. Some felt insurance coverage and cost might be a barrier to offering newer medications and genetic testing. Clinicians reported limited confidence in identifying, diagnosing, and treating FH, while also being concerned that patients do not understand the risk of FH.
Journey maps showed primary care clinicians felt it was their responsibility to screen for cholesterol disorders but were limited by time and knowledge about the criteria to make an FH diagnosis (Appendix 4). They felt comfortable referring these patients to genetics and cardiology for further diagnostic and medication management. Cardiologists were more familiar with caring for individuals with FH, often diagnosing FH after a cardiovascular event, but wished earlier diagnosis had prevented poor outcomes.
Acceptability, appropriateness, and feasibility of a FH screening program
A total of 250 surveys were sent via email to primary care clinicians (100 community medicine, 70 internal medicine, and 80 pediatrics). Four surveys were undeliverable and 3 were excluded for clinician selecting “other” as their department. Overall response rate was 35% (84/243), with highest response rate from pediatrics at 48% (38/80). Response rate for internal medicine was 32% (22/69) followed by community medicine at 26% (24/94). Only 31% of responders in the entire sample were male, however 94% from pediatrics identified as female, meaning the male to female ratio in other departments was close to 50:50. Across all departments, 70% (58/83) of respondents strongly agreed or agreed with the statement they were “confident in their ability to perform screening for FH in their clinic.”
Responses to the acceptability, implementation, and feasibility questions are reported in Table 2. Responses to the acceptability questions ranged from 48% to 71% for completely agree or agree for each of the 4 questions. The question “I like performing a screening for FH in my clinic” had the lowest level of agreement (48%). Responses to the implementation questions ranged from 70% to 75% of clinicians saying they completely agree or agree in the appropriateness of FH screening in primary care. Responses of completely agree and agree to the feasibility questions for deploying FH screening in primary care ranged from 50–69%. The question with the lowest feasibility was “Performing a screening for FH in my clinic seems like a good match” with only 50% of clinicians agreeing with this statement.
Table 2.
Acceptability, appropriateness, and feasibility survey responses
| Domain | Statement, n (%) | Responses | Community medicine (n=24) |
Internal medicine (n=22) |
Pediatrics (n=38) |
Total (n=84) |
P-value* |
|---|---|---|---|---|---|---|---|
| Acceptability | Performing a screening for familial hypercholesterolemia in my clinic meets my approval. | Completely agree | 8 (33.3) |
8 (36.4) |
14 (36.8) |
30 (35.7) |
0.49 |
| Agree | 11 (45.8) |
10 (45.5) |
20 (52.6) |
41 (48.8) |
|||
| Neither agree nor disagree | 5 (20.8) |
2 (9.1) |
4 (10.5) |
11 (13.1) |
|||
| Disagree | 0 | 1 (4.5) |
0 | 1 (1.2) |
|||
| Missing | 0 | 1 (4.5) |
0 | 1 (1.2) |
|||
| Performing a screening for familial hypercholesterolemia in my clinic is appealing to me. | Completely agree | 7 (29.2) |
7 (31.8) |
14 (36.8) |
28 (33.3) |
0.41 | |
| Agree | 10 (41.7) |
11 (50.0) |
18 (47.4) |
39 (46.4) |
|||
| Neither agree nor disagree | 7 (29.2) |
3 (13.6) |
3 (7.9) |
13 (15.5) |
|||
| Disagree | 0 | 0 | 2 (5.3) |
2 (2.4) |
|||
| Missing | 0 | 1 (4.5) |
1 (2.6) |
2 (2.4) |
|||
| I like performing a screening for familial hypercholesterolemia in my clinic. | Completely agree | 4 (16.7) |
7 (31.8) |
10 (26.3) |
21 (25.0) |
0.24 | |
| Agree | 6 (25.0) |
5 (22.7) |
16 (42.1) |
27 (32.1) |
|||
| Neither agree nor disagree | 14 (58.3) |
9 (40.9) |
11 (28.9) |
34 (40.5) |
|||
| Disagree | 0 | 0 | 1 (2.6) |
1 (1.2) |
|||
| Missing | 0 | 1 (4.5) |
0 | 1 (1.2) |
|||
| I welcome performing a screening for familial hypercholesterolemia in my clinic. | Completely agree | 6 (25.0) |
8 (36.4) |
12 (31.6) |
26 (31.0) |
0.67 | |
| Agree | 13 (54.2) |
10 (45.5) |
18 (47.4) |
41 (48.8) |
|||
| Neither agree nor disagree | 5 (20.8) |
2 (9.1) |
6 (15.8) |
13 (15.5) |
|||
| Disagree | 0 | 1 (4.5) |
2 (5.3) |
3 (3.6) |
|||
| Missing | 0 | 1 (4.5) |
0 | 1 (1.2) |
|||
| Appropriateness | Performing a screening for familial hypercholesterolemia in my clinic seems fitting. | Completely agree | 9 (37.5) |
9 (40.9) |
11 (28.9) |
29 (34.5) |
0.77 |
| Agree | 12 (50.0) |
10 (45.5) |
24 (63.2) |
46 (54.8) |
|||
| Neither agree nor disagree | 2 (8.3) |
2 (9.1) |
3 (7.9) |
7 (8.3) |
|||
| Disagree | 1 (4.2) |
1 (4.5) |
0 | 2 (2.4) |
|||
| Performing a screening for familial hypercholesterolemia in my clinic seems suitable. | Completely agree | 9 (37.5) |
7 (31.8) |
12 (31.6) | 28 (33.3) |
0.51 | |
| Agree | 12 (50.0) |
10 (45.5) |
22 (57.9) |
44 (52.4) |
|||
| Neither agree nor disagree | 2 (8.3) |
5 (22.7) |
4 (10.5) |
11 (13.1) |
|||
| Disagree | 1 (4.2) |
0 | 0 | 1 (1.2) |
|||
| Performing a screening for familial hypercholesterolemia in my clinic seems applicable. | Completely agree | 8 (33.3) |
8 (36.4) |
12 (31.6) |
28 (33.3) |
0.91 | |
| Agree | 13 (54.2) |
11 (50.0) |
23 (60.5) |
47 (56.0) |
|||
| Neither agree nor disagree | 2 (8.3) |
2 (9.1) |
3 (7.9) |
7 (8.3) |
|||
| Disagree | 1 (4.2) |
1 (4.5) |
0 | 2 (2.4) |
|||
| Performing a screening for familial hypercholesterolemia in my clinic seems like a good match. | Completely agree | 8 (33.3) |
8 (36.4) |
13 (34.2) |
29 (34.5) |
0.83 | |
| Agree | 12 (50.0) |
10 (45.5) |
19 (50.0) |
41 (48.8) |
|||
| Neither agree nor disagree | 3 (12.5) |
4 (18.2) |
6 (15.8) |
13 (15.5) |
|||
| Disagree | 1 (4.2) |
0 | 0 | 1 (1.2) |
|||
| Feasibility | Performing a screening for familial hypercholesterolemia in my clinic seems implementable. | Completely agree | 6 (25.0) |
7 (31.8) |
7 (18.4) |
20 (23.8) |
0.68 |
| Agree | 14 (58.3) |
11 (50.0) |
21 (55.3) |
46 (54.8) |
|||
| Neither agree nor disagree | 4 (16.7) |
3 (13.6) |
5 (13.2) |
12 (14.3) |
|||
| Disagree | 0 | 1 (4.5) |
3 (7.9) |
4 (4.8) |
|||
| Missing | 0 | 0 | 2 (5.3) |
2 (2.4) |
|||
| Performing a screening for familial hypercholesterolemia in my clinic seems possible. | Completely agree | 7 (29.2) |
8 (36.4) |
10 (26.3) |
25 (29.8) |
0.88 | |
| Agree | 14 (58.3) |
10 (45.5) |
20 (52.6) |
44 (52.4) |
|||
| Neither agree nor disagree | 3 (12.5) |
4 (18.2) |
7 (18.4) |
14 (16.7) |
|||
| Disagree | 0 | 0 | 1 (2.6) |
1 (1.2) |
|||
| Performing a screening for familial hypercholesterolemia in my clinic seems doable. | Completely agree | 6 (25.0) |
7 (31.8) |
9 (23.7) |
22 (26.2) |
0.94 | |
| Agree | 12 (50.0) |
10 (45.5) |
20 (52.6) |
42 (50.0) |
|||
| Neither agree nor disagree | 6 (25.0) |
5 (22.7) |
8 (21.1) |
19 (22.6) |
|||
| Disagree | 0 | 0 | 1 (2.6) |
1 (1.2) |
|||
| Performing a screening for familial hypercholesterolemia in my clinic seems easy to use. | Completely agree | 7 (29.2) |
5 (22.7) |
9 (23.7) |
21 (25.0) |
0.10 | |
| Agree | 7 (29.2) |
6 (27.3) |
16 (42.1) |
29 (34.5) |
|||
| Neither agree nor disagree | 10 (41.7) |
10 (45.5) |
8 (21.1) |
28 (33.3) |
|||
| Disagree | 0 | 0 | 5 (13.2) |
5 (6.0) |
|||
| Missing | 0 | 1 (4.5) |
0 | 1 (1.2) |
P-value from Chi-square tests and Fisher’s exact tests if cell count < 5.
Disagree combines the responses of ‘Completely Disagree’ and ‘Disagree’.
A total of 87 free responses were analyzed for acceptability, appropriateness, and feasibility. Appendix 8 highlights exemplar quotes related to each domain. Respondents overwhelmingly expressed prevention of cardiovascular disease as important and that evidence-based care should be performed in the primary care setting. Clinicians felt screening for FH was acceptable because of the value of early recognition in prevention of severe complications. Some clinicians expressed they were already screening their patients for FH however others felt their patients would not benefit. Clinicians’ concerns included how long and/or complex the screening process might be and concerns with having time or staff resources to cover FH screening. They also listed patient-level barriers to obtaining a lipid panel as one of the critical elements limiting feasibility of screening for FH.
Solutions incorporated in the implementation strategy package
Solutions were categorized at the clinic- and system-level. Clinic-level solutions suggested to improve feasibility included notifications to the clinician through the EHR such as ‘best practice alerts’ or ‘smart sets’ to speed up documentation in the EHR. The informatics team worked with clinicians on the medical team and used feedback to develop a set of EHR tools including a smart set (containing information on which tests to order to confirm FH, medication therapies, easy access to the FH diagnosis), clinic note, and FH diagnostic criteria. Some clinicians mentioned other staff, such as trainees, available in clinics to alleviate the primary care clinician’s burden. Clinicians suggested hiring staff to screen, adding a new visit slot for screening, or adding time to an existing visit to conduct the screening. Removal of the barrier for primary care to be able to order FH genetic testing was also suggested.
System-level solutions arose from meetings with institutional leaders who oversaw diverse activities such as improving ease for access to genetic testing, quality metric, system education, lipid testing at opportunistic appointments, and marketing. System policy stated genetic testing could not be ordered by primary care clinicians. The study team was able to remove this barrier. Since primary care clinicians were not as familiar with the genetic testing process, a silent alert in the EHR was implemented when genetic testing for FH was ordered for a study team member to complete the associated paperwork for the clinician. We developed genetic testing information videos in English and Spanish with a questionnaire to facilitate the consent process. If the patient did not understand the material presented in the video, the survey would prompt a call from a genetic counselor. The pediatric quality council met and agreed that screening children ages 9–11 should be added to the current list of metrics by which clinicians are assessed. To notify patients of the need for an FH evaluation, a care gap letter was developed to inform patients they should discuss cholesterol with their clinician at their next appointment. The medical team approved obtaining a non-fasting lipid profile to facilitate screening on the day of a primary care appointment.
A two-pronged approach to clinician education was developed. As online learning was considered impersonal and an imposition on clinician time, a primary strategy of in office, face-to-face clinician education with demonstration of EHR tools was chosen. This was supplemented with system-wide cardiology, internal medicine, community medicine, and pediatric grand rounds about FH and the study.
Collaborative development of implementation strategy package
A total of 7 clinicians (6 members of the study’s medical science team and 1 clinician involved in caring for FH patients) participated in the first deliberative engagement session with representation from community medicine, internal medicine, pediatrics, and pediatric and adult cardiology. Participants provided feedback on the draft implementation strategy package. The following problems were identified: lack of awareness of FH, clinician knowledge about FH, clinician recognition of FH, and limited time during appointments to discuss FH. Table 3 highlights the initial strategies presented, recommendations made by participants, and the resulting co-developed implementation strategies to be utilized at the pilot site.
Table 3.
Collaborative iterative development of the implementation strategy package
| Presented implementation strategy | Recommendations by deliberative engagement team | Co-developed implementation strategy definition (core components) | Adaptations for the pilot site | Trialability of the implementation strategy from pilot practice | Refinements made to the implementation strategy with pilot practice |
|---|---|---|---|---|---|
| Patient-level | |||||
| Patient outreach strategy |
|
|
|
|
|
| Clinician-level | |||||
| Clinician education and training |
|
|
|
|
|
| Clinician notification |
|
|
|
|
|
| System-level | |||||
| Incentives to screen for FH |
|
|
|||
| Standardized screening documentation (not originally presented but planned and received feedback) |
|
|
|
|
|
Prior to go-live, the study team met with pilot clinic leadership to discuss the clinic-level implementation strategies (clinician education and training and clinician notification) and decide the most feasible way to implement them. The pilot clinic leadership helped to schedule the in-person 1-hour training and determined that they would use heart cards they had developed previously and for a different purpose to notify clinicians about which patients should have cholesterol screening.
Four strategies were included in the CARE-FH implementation package (clinician education and training, patient outreach, clinician notification, and standardized screening documentation) and was piloted at one clinic from September to November 2022. Six providers were trained to screen and diagnose FH (clinician education strategy). A care gap letter was sent to 232 patients identified as eligible for screening (patient outreach strategy). 170 patients had a visit where the clinician was prompted to screen (clinician notification strategy). Clinicians were asked to use the electronic tools including pre-populated language within the clinic note and list of orders specific to individuals with FH (standardized documentation strategy).
Six clinicians (all trained via the clinician education strategy) and six clinic personnel participated in the post-pilot deliberative engagement session. Suggestions to improve the implementation strategies included integrating the screening criteria for FH into the EHR, creating a video to assist with consent for genetic testing with a survey which would gauge understanding of the patient, and recommendation to meet with individual operation managers to discuss the implementation of some of these strategies at their specific clinics (Table 3). Pilot clinic personnel suggested the patient identification within a clinic should be transitioned to the clinic staff 6 months after go-live at each site. A full description of the co-developed implementation strategy package to be utilized in the clinical trial is presented in Appendix 9 and includes additional strategies that will be implemented over the course of the trial, such as, obtaining leadership buy-in, soliciting feedback from patients and clinicians, identification of clinical champions, and scale up of the implementation strategy package.
DISCUSSION
Through engagement with health care system leadership and clinician stakeholders, we co-developed an implementation strategy package which was designed to address identified barriers to screening and diagnosing FH in primary care clinics. We found FH was being diagnosed most often by a cardiologist after a cardiovascular event had already occurred, which provided the rationale for the CARE-FH trial to address barriers to earlier diagnosis prior to cardiac events. Primary care clinicians felt screening for preventive diseases such as FH should occur in primary care, but structural challenges including appointment length and patient expectations were limitations. These results led to incorporating important elements into our screening program, including partnering with public relations to facilitate patient notification of the need for screening, emphasizing lipid screening for young adults, facilitating genetic testing ordering to reduce clinician barriers, and implementation of a quality metric for pediatric screening at ages 9–11. Clinician education was performed face-to-face in an office setting as a result of the engagement.
Implementation strategies developed and tested in the CARE-FH trial will help to identify which strategies are successful in screening and identifying individuals with FH. Adaptations to these strategies will be documented throughout the trial to aid with the understanding of core components necessary for impact, and which elements can be modified or discarded. The successful and adaptable components of these strategies, as confirmed by our clinical trial, can be incorporated with a strong evidence grade into clinical practice guidelines.27,28
Others have reported similar reasons for clinicians not performing lipid screening as those identified during our development of the strategy package.29–32 Our clinicians felt screening was acceptable, appropriate, and feasible, yet many were not currently screening. This is not uncommon in practice today, as a survey conducted by the American Academy of Pediatrics reported that more than 50% agreed that universal lipid screening should occur in children but nearly 70% of these physicians reported they never, rarely, or sometimes screened healthy 9- to 11-year-old patients.33 The current state of FH screening in primary care at Geisinger is low, similar to other practices in the United States and elsewhere.30,33,34 However, many organizations, nations, and countries are developing programs to improve FH screening and identification due to the significant risk of ASCVD and our ability to implement preventive measures.35–37 This led the study leadership team to successfully meet with the Pediatric Quality Council and advocate for cholesterol screening for children ages 9–11 to be added as a quality metric monitored and reported to clinicians.
The findings from contextual inquiries provide additional insight for the survey data, particularly related to barriers to implementation of FH screening: lack of time, lack of knowledge, and lack of patient/parental participation in screening. While quantitative results provide insight into the scale of problems experienced by clinicians and patients in diagnosing and treating FH, contextual inquiries provide rich insight into the experience of clinicians and patients in general and specifically around FH. For instance, the journey maps created from the human centered design methodology helped to identify the disparity between cardiologists with expertise in lipids compared to primary care and non-lipid specialists regarding knowledge of lipid treatment guidelines as compared to other dyslipidemia patients. Application of these multiple methods allowed us to uncover details explaining variation in practice in the “real world” clinic. These journey maps served as our implementation blueprint and provided guidance on development of our FH screening program.
Piloting the strategy package at one clinic over a 3-month period resulted in modifications to individual strategies and the addition of two new system-level strategies: leadership buy-in and scale up. The pilot highlighted the roles of clinic staff and nurses in developing office practices to help busy clinicians identify patients in need of FH screening. Implementation science frameworks indicate this process of providing a package of strategies addressing the known barriers, facilitators, and care gaps consistent across settings, yet can be adapted to the local context for operationalization will make findings more generalizable. Strategies in this package were defined and adapted to be operationalized at Geisinger. However, many of the learnings from this project can be generalized to other health care systems and contexts. Barriers identified are likely similar in most settings. We found failure of primary care clinicians to routinely perform cholesterol screening was not due to lack of interest in cardiovascular disease prevention, but to structural barriers at the system-, clinic-, and patient-levels making screening cumbersome either for clinicians or patients. This suggests improved screening rates depend upon efforts to identify these structural barriers and selecting implementation strategies to alleviate them. Examples from this project so far include the simplification of genetic test ordering and the clinician reminders.
Limitations.
Study limitations included unbalanced recruitment towards those who wanted to participate in surveys and contextual inquiries and scheduling/time commitment difficulties with clinicians which may have biased results. A delay also occurred in launching EHR tools for the pilot study due to an upgrade to the EHR. The medical and informatics teams were constructed to include key institutional leaders to facilitate overcoming barriers identified from this upgrade; this may make such a strategy less generalizable to settings without access to administrative leaders.
CONCLUSION
This study incorporates perspectives of primary care clinicians and health system leaders to inform, design, and refine an implementation strategy package to remove barriers. We found primary care clinicians are interested in increasing the rates of screening and identification of FH and feel they should offer this preventive measure to their patients but structural barriers and incomplete knowledge of lipidology impeded screening efforts. The implementation package developed will be further evaluated in a pragmatic clinical trial at Geisinger to understand its effectiveness in improving FH identification and care.
Supplementary Material
Highlights.
FH screening in primary care practices are acceptable, appropriate, and feasible.
An implementation strategy package was co-developed with primary care stakeholders to improve screening for FH within their practices.
Demonstrating successful screening for FH in primary care practice will help increase the number of individuals identified with FH.
Generalization of the primary care implementation strategy to other settings will improve FH identification nationwide.
SOURCES OF FUNDING:
Research reported in this publication was supported by the National Heart, Lung, And Blood Institute of the National Institutes of Health under Award Number R61HL161775 and R33HL161775. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.
ABBREVIATION LIST:
- ASCVD
atherosclerotic cardiovascular disease
- CARE-FH
Collaborative Approach to Reach Everyone with Familial Hypercholesterolemia
- EHR
electronic health record
- FH
familial hypercholesterolemia
- LDL-C
low-density lipoprotein cholesterol
- MyCode
MyCode Community Health Initiative
Footnotes
Publisher's Disclaimer: This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.
DISCLOSURES:
Declaration of interest: Laney K. Jones is a consultant for Novartis. Samuel S. Gidding is a consultant for Esperion.
Use of AI and AI-assisted Technologies Statement: AI or AI-assisted technology has not be used in the preparation of this manuscript.
Ethical Statement: This study was approved by the Geisinger Institutional Review Board (IRB#2021–0927) and CARE-FH is a registered clinical trial (NCT05284513).
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