Begley 1990.
Methods | RCT with randomisation of individual women | |
Participants |
Irish hospital setting. High‐income country Inclusion criteria: all women at low risk of haemorrhage (< 35 years; parity < 5; 1st stage of labour < 15 hours; no previous history of PPH; Hb > 11 g/dL (or 10.6 g/dL for capillary sample)) with singleton, cephalic presentation, 35 to 36 weeks at recruitment; no medical complications that would contraindicate ergometrine or would increase the risk of bleeding (cardiac disease, use of heparin, hypertension), and expected to give birth vaginally 1429 women randomised out of 2901 eligible Exclusion criteria: women with hypertension in pregnancy or 1st or 2nd stage; epidural anaesthesia (included in separate study); APH; 1st stage > 15 hours; OVB; women attending private care Clinician responsible for third stage: midwives |
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Interventions |
Intervention: active management of third stage (N = 705)
For retained placenta: 1 h after birth:
Comparison: expectant management of 3rd stage (N = 724)
Special circumstances: if baby’s cord is clamped and cut before pulsation ceases (due to cord round neck, asphyxia, etc) do not give ergometrine. Milk any placental blood into bowl and discard it. Watch for signs of placental separation and deliver placenta by CCT. Retained placenta > 1 h after birth:
Data entered into comparisons 1 and 2 |
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Outcomes |
Pre‐specified outcomes: manual removal of placenta; PPH (> 500 mL); mean blood loss; length 3rd stage; Hb < 10 g/dL at 48‐72 h; and difference between 32 weeks and 48‐72 h PP: PP blood transfusions; side effects 1‐2 h post birth; PP complications; breastfeeding; serum prolactin; women’s views. No neonatal outcomes (Information from Oxford Database of Perinatal Trials registration sheet) and from Begley 1990): morbidity; blood loss during 3rd stage; method of placental delivery; complications occurring in first 1‐2 h post birth (haemorrhage, nausea, vomiting, raised BP, pain); Hb on 3rd postnatal day; prolactin levels on 3rd postnatal day, duration of breastfeeding |
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Notes | Between 1 October 1987 and 31 October 1988, 2901 women were deemed eligible for initial inclusion, 2650 agreed to take part. 1221 of these were excluded prior to randomisation because of epidural (399); OVB (354); CS (132); rapid birth (95); hypertension (77); missed (53); low Hb (40); woman’s request (28); miscellaneous (23); breech (20) Actual management used in the active arm: all given IV ergometrine 0.5 mg before delivery of placenta; 89% cord clamped and cut; 93% CCT and 5% maternal effort; 7% upright and 93% recumbent Actual management used in the expectant arm: 14% got ergometrine for treatment, not prophylactically, 6 (0.83%) before placenta delivered; cord left unclamped till pulsation ceased 42%; placenta delivered by maternal effort 32% and CCT 66%; 11% upright Dates of study: 1 October 1987‐31 October 1988 Funding sources: "This study was funded by the Research and Development Trust of the Coombe Hospital" Declarations of interest: not reported |
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Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Unpublished information from study author: random number tables were used (Fleiss 1981). The 1st number was selected from the table by a disinterested observer and the numbers were allocated in blocks of 100 following in sequence |
Allocation concealment (selection bias) | Low risk | Quote: “...a numbered, sealed envelope containing the randomly allocated group was stapled to the woman’s chart in readiness for admission... The envelope remained sealed until the women was in second stage of labour and the midwife was certain a normal delivery would ensue. The envelope was then opened...” Quote: "When a woman was excluded from the study, her envelope was returned, unopened, to the researcher. All returned envelopes were re‐allocated in numerical order prior to starting the next batch of 100 envelopes." |
Blinding of participants and personnel (performance bias) All outcomes | High risk | It was not possible to blind women or clinicians in this study. The outcome assessor was often the caregiver for many important outcomes, e.g. blood loss and PPH. Even though blood loss was measured and not estimated, there may have been bias in measuring. |
Blinding of outcome assessment (detection bias) All outcomes | Unclear risk | Describes the differences in measuring blood loss in non‐blinded staff and attempts to standardise methods. Hb measurement was conducted by assessors blinded to allocation (personal communication) thus some outcomes were blinded but for some it was not possible. |
Incomplete outcome data (attrition bias) All outcomes | Low risk | Some missing data for some postnatal Hb measurements (618 out of 705 in the active group (12% attrition) and 645 out of 724 in the expectant (11% attrition) ITT not mentioned but no loss to follow‐up for outcomes measured during labour. Some outcome data are taken from the unpublished thesis. |
Selective reporting (reporting bias) | Unclear risk | All outcomes listed in the methods are reported, but no protocol for the study is available. |
Other bias | Low risk | No significant difference in baseline characteristics, but more women in the physiological arm had pethidine in labour (46% compared with 52%, P = 0.05). This may impact on outcomes in the physiological arm where the sight and sound of the baby may be the stimulus for the hormonal release needed for natural 3rd stage and pethidine may impact here. 1st and 2nd stage management similar and no obvious differences overall. |