Continuous versus discontinuous suture in perineal injuries produced during delivery in primiparous women: a randomized controlled trial

Juan Miguel Martínez-Galiano, Beatriz Arredondo-López, Leticia Molina-Garcia, Ana Maria Cámara-Jurado, Eva Cocera-Ruiz, Miguel Rodríguez-Delgado, Juan Miguel Martínez-Galiano, Beatriz Arredondo-López, Leticia Molina-Garcia, Ana Maria Cámara-Jurado, Eva Cocera-Ruiz, Miguel Rodríguez-Delgado

Abstract

Background: The technique used in the repair of a perineal injury resulting from childbirth could avoid discomfort and morbidity during the postpartum period. Recent studies show inconsistent results and support the need for new research with the inclusion of new health parameters not yet studied. Therefore, this study aims to evaluate if the suture technique (continuous or interrupted) has an effect on pain and other postpartum problems, incidence of incontinence (urinary and/or fecal), and the restart of sexual relations.

Methods: A single-blind randomized clinical trial was conducted in five hospitals in south-east Spain. The participants were primiparous women who had experienced a perineal injury during delivery (second-degree tear or episiotomy). Data was collected on sociodemographic variables, variables associated with pregnancy, labor and delivery, and the postpartum period, and outcomes during the 3 months after delivery: pain, incontinence, and restart of sexual relations. Odds ratios (OR) were calculated by binary logistic regression to assess the influence of the suture type on binary outcomes and t-test used for comparing continuous outcomes. Multivariate analyses (using logistic regression -adjusted (aOR)- and analysis of covariance) were carried out to adjust for unbalanced variables after randomization.

Results: A total of 70 women were included in the intervention group (continuous suture) and 64 in the reference group (interrupted sutures). A negative association was observed (aOR = 0.39; 95% CI = 0.18-0.86) between a continuous suture and the need for analgesia at 24 h postpartum. Pain experienced by the women at 24 h postpartum was assessed as 4.4 ± 0.3 compared with a score of 3.4 ± 0.3 in the group with continuous sutures (p = 0.011). At 15 days postpartum, women in the intervention group experienced less pain (aOR = 0.38; 95% CI = 0.18-0.80) (p = 0.019). Urinary sphincter incontinence was also evaluated at 15 days, with 4.3% (n = 3) of the women in the intervention group presenting with urinary incontinence compared with 18.8% (n = 12) in the control group (aOR = 0.11; 95% CI = 0.03-0.47) (P = 0.003).

Conclusions: The women who had a continuous suture repair showed lower levels of pain from delivery to 3 months after delivery and had a lower incidence of urinary incontinence at 15 days postpartum.

Trial registration: ClinicalTrials.gov NCT03825211 posted January 31, 2019 (retrospectively registered).

Keywords: Episiotomy; Incontinence; Pain; Perineal lesion; Sexual relations; Suture.

Conflict of interest statement

The authors declare that they have no competing interests.

Figures

Fig. 1
Fig. 1
Flow diagram of the participants

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Source: PubMed

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