Repair of episiotomy and obstetrical perineal lacerations (first-fourth)

Patient Perspectives Following Obstetric Anal Sphincter Injury

IMPORTANCE

An obstetric anal sphincter injury can significantly affect patients. Support for these patients is both limited and not well understood.

OBJECTIVE

The aim of this study was to describe patient experiences after an obstetric anal sphincter injury.

STUDY DESIGN

This is a prospective cross-sectional qualitative study of patients who experienced an obstetric anal sphincter injury within a tertiary care network between May and June of 2022. Demographic data, clinical data regarding the delivery, and the Edinburgh Postnatal Depression Scale were collected. Prospective semistructured interviews were conducted approximately 5-12 weeks postpartum to address opportunities to improve obstetric anal sphincter injury care. Qualitative analysis was performed using a grounded theory approach.

RESULTS

Fifteen women with a mean age of 31 (±3.93) years participated. The majority identified as White (93.3%) and non-Hispanic (100%). All participants identified as being married to men and completing undergraduate education; 9 (60%) also received postgraduate education. Five participants (33.3%) screened positive (score of 10 or greater) for postnatal depression on the Edinburgh Postnatal Depression Scale. Thematic saturation was reached with 3 major themes identified: (1) pain control, (2) desire for multifactorial support, and (3) obstetric anal sphincter injury knowledge and awareness.

CONCLUSIONS

Experiencing an obstetric anal sphincter injury represents a great unknown to most women. This study identifies opportunities for improved postpartum care through education, pain control, and patient support. Interventions are needed to improve the postpartum experience for women who experience an obstetric anal sphincter injury with childbirth.

The outcome of early perineal rehabilitation in obstetric anal sphincter injuries: a single-center experience

PURPOSE

The objective of this study is to evaluate the impact of pelvic floor physical therapy (PFPT) on symptoms and quality of life in women who experienced third- and fourth-degree perineal tears (Obstetric Anal Sphincter Injuries, OASIS) during childbirth. OASIS can lead to anal incontinence and dyspareunia, having important implications regarding the quality of life and health of women but, unfortunately, there is no standard practice for postpartum care following OASIS.

METHODS

In this retrospective observational study, patients diagnosed with OASIS between January 2016 and June 2023 were enrolled. Since 2016, all women with OASIS have been routinely referred for physiatric evaluation and pelvic floor rehabilitation. Validated questionnaires (Wexner score and Marinoff scale) were administered to enrolled women to assess anal incontinence and dyspareunia.

RESULTS

The study included 148 women, of whom 88 responded to the questionnaires. Participants were divided into two groups: those who underwent PFPT (N = 68) and those who declined it (N = 20). The mean follow-up period was 1447.35 days. The Wexner score was lower in the PFPT group compared to the no-PFPT group (p = 0.050). The Marinoff score did not show a statistically significant difference between the two groups (p = 0.381).

CONCLUSION

PFPT was shown to be effective in reducing AI symptoms in women with OASIS, improving quality of life and maintaining its effects in the long term, but without providing benefits for dyspareunia. Strengths of this study include the use of validated questionnaires, the long follow-up period, and the involvement of a specialized team of physiatrists and physiotherapists.

Residents' Exposure to Obstetric Anal Sphincter Injury: A 16-Year Temporal Trend

IMPORTANCE

Exposure to the surgical management of obstetric anal sphincter injuries (OASIS) is limited during obstetrics training.

OBJECTIVES

The objective of this study was to quantify residents' exposure to OASI repair during 4-year obstetrics and gynecology (OBGYN) residency and examine temporal trends over a 16-year period.

STUDY DESIGN

This was a retrospective cohort study of residents' exposure to OASIS at a community academic hospital from 2007 to 2022. Individuals with documented OASIS (third- or fourth-degree laceration) by International Classification of Diseases, Ninth and Tenth Revisions, codes during vaginal delivery (VD), spontaneous vaginal delivery (SVD), or operative vaginal delivery (OVD), were included. Delivery rates and OBGYN resident positions were examined. Temporal trends in OASIS were analyzed in 4-year epoch to determine average resident exposure during OBGYN residency.

RESULTS

During the 16-year study period, there were 103,234 deliveries (62% VD, 4% OVD, 34% cesarean delivery). Among VDs, there were 2,344 (3.4%) OASIS with 88.5% classified as third-degree and 11.5% as fourth degree. The OASI rate decreased from 4.2% (2007-2010) to 2.9% (2019-2022), whereas OBGYN residents increased by 49% (67 to 99; P < 0.001). Average resident exposure to OASIS decreased from 11 (2007-2010) to 5 (2019-2022; P = 0.55). Subclassification revealed that residents were exposed to 5 third-degree repairs and less than 1 fourth-degree repair, on average, during 2019-2022.

CONCLUSIONS

During 4 years of training, average resident exposure was to 7 OASIS, 6 third degree, and 1 fourth degree. Limited exposure to OASIS during residency may be detrimental, as surgical treatment is a complicated yet essential obstetric procedure that carries significant risk of patient morbidity and potential long-term sequelae. Therefore, reliance on supplementation with simulation may improve surgeon competence in OASI management.

Skeletal Muscle Complex Between the Vagina and Anal Canal: Implications for Perineal Laceration

INTRODUCTION AND HYPOTHESIS

The anatomy of the skeletal muscles located between the vagina and anus is important during complex obstetric laceration reconstructions. We aimed to clarify the composition of skeletal muscles located between the vagina and anal canal and their three-dimensional configuration relevant to perineum repair.

METHODS

This observational study involved ten female cadavers. An anatomical dissection was performed to observe the muscles around the vagina and anal canal. Immunohistological analysis of the midsagittal section was performed to clarify the composition of the muscles, and dissection was performed to correspond to the cross-section. Wide-range serial sectioning and three-dimensional reconstruction were used to support these findings histologically and visualize the three-dimensional arrangement.

RESULTS

The region between the vagina and anal canal included the anterior part of the external anal sphincter, superficial transverse perineal muscle approaching from the lateral side, and levator ani, located cranially. They converge three-dimensionally in the median from each direction, forming a muscle complex between the vagina and anal canal.

CONCLUSIONS

The medial region between the vagina and anal canal in those giving birth includes a skeletal muscle complex formed by the confluence of the external anal sphincter, anterior bundle of the levator ani, and superficial transverse perineal muscle. In cases of severe perineal lacerations, these muscles could be injured. The anatomical knowledge that a part of the levator ani forms a muscle sling anterior to the anal canal is particularly important for obstetricians and gynecologists repairing obstetric lacerations and treating pelvic floor disorders.

Prevalence and predictors of episiotomy among puerperal women accessing postnatal care in the Kumasi Metropolis

BACKGROUND

This study investigated the prevalence and predictors of episiotomy among puerperal women accessing postnatal care in the Kumasi Metropolis.

METHODS

A cross-sectional survey was conducted among 1750 postnatal mothers who had spontaneous vaginal using a questionnaire. Descriptive statistics were conducted to show the rate of episiotomy. Chi-square and binary logistic regression analyses were conducted using Jamovi software version 2.5.3.

RESULTS

The prevalence of episiotomy among the study population was 49.7% compared to the 10% of all deliveries recommended by World Health Organisation (WHO). Among those who had an episiotomy, 88.5% gave consent, and 77.6% required repairs. In the bivariate analysis educational status, age, perineal tearing, marital status, household monthly income, spontaneous vaginal deliveries and previous episiotomy had a significant association with episiotomy risk. In the multivariate analysis, married women, lower education levels, moderate household incomes, grand multiparous women, spontaneous vaginal delivery (SVD), instrumental deliveries, longer second stages of labour, and attending more antenatal care (ANC) sessions were all associated with a reduced likelihood of episiotomy. Higher one-minute Apgar scores and anemia also lowered the odds. Conversely, hypertensives, women with four or more previous vaginal deliveries, and those with a history of episiotomy were more likely to undergo the procedure.

CONCLUSION

Episiotomies conducted was high, indicating potential overuse compared to WHO's recommendations. Antenatal attendance and timing should be prioritised to improve maternal preparation and outcomes. Policy interventions to reduce unnecessary episiotomies are needed. Midwifery education must also emphasise the importance of respectful maternity care.

Hyaluronidase for reducing perineal trauma

BACKGROUND

Perineal trauma after vaginal birth is common and can be associated with short- and long-term health problems. Perineal hyaluronidase (HAase) injection has been widely used to reduce perineal trauma, perineal pain and the need for episiotomy since the 1950s. The administration of HAase is considered to be a simple, low risk, low cost and effective way to decrease perineal trauma without causing adverse effects.

OBJECTIVES

To assess the effectiveness and safety of perineal HAase injection for reducing perineal trauma, episiotomy and perineal pain during vaginal delivery.

SEARCH METHODS

To identify studies for inclusion in this review, we searched the Cochrane Central Register of Controlled Trials, Ovid MEDLINE, Embase, CINAHL (EBSCOhost), ClinicalTrials.gov and WHO International Clinical Trials Registry Platform (ICTRP) in November 2023.

SELECTION CRITERIA

Randomised and quasi-randomised controlled trials comparing women giving birth to their first baby receiving perineal HAase injection compared to placebo injection or no intervention during vaginal delivery of a single foetus with vertex foetal presentation (foetus with head engaging the maternal pelvis).

DATA COLLECTION AND ANALYSIS

We used standard methodological procedures expected by Cochrane. Two review authors independently assessed trials for inclusion, extracted and checked data, and evaluated the risk of bias in the studies. Our primary outcomes were perineal trauma (tears or episiotomy, or both), episiotomy and perineal pain. Our secondary outcomes were first and second degree perineal lacerations, third and fourth degree perineal lacerations, perineal oedema 1 hour after vaginal delivery, perineal oedema 24 hours after vaginal delivery and neonatal Apgar scores of less than 7 at five minutes after birth (Apgar score is a measure of the health status of a newborn). We assessed the certainty of the evidence using the GRADE approach.

MAIN RESULTS

We included five randomised controlled trials involving a total of 747 women (data were available for 743 women). The dosage of HAase used in the perineal injection varied from 750 turbidity-reducing units to 5000 international units. The certainty of the evidence was largely low (ranging from very low to moderate). Perineal HAase injection versus placebo injection Data from three trials involving 426 women provided low-certainty evidence that there may be no difference between the HAase and placebo groups in the incidence of perineal trauma (tears or episiotomy, or both) (RR 0.94, 95% CI 0.87 to 1.03; 426 participants, 3 studies), episiotomy (RR 0.91, 95% CI 0.71 to 1.15; 427 participants, 3 studies), first and second degree perineal lacerations (RR 1.02, 95% CI 0.87 to 1.18; 341 participants, 3 studies), third and fourth degree perineal lacerations (RR 0.46, 95% CI 0.11 to 2.05; 426 participants, 3 studies), and perineal oedema one hour after vaginal delivery (RR 0.99, 95% CI 0.78 to 1.25; 303 participants, 2 studies). Moreover, perineal HAase injection during the second stage of labour likely resulted in a reduction in incidence of perineal oedema 24 hours after vaginal delivery compared with placebo injection (RR 0.42, 95% CI 0.26 to 0.70; 303 participants, 2 studies; moderate-certainty evidence). There may be no difference between groups in Apgar scores less than 7 at five minutes (RR 5.00, 95% CI 0.24 to 105.95; 148 participants, 1 study; low-certainty evidence). Perineal HAase injection versus no intervention Data from three trials involving 373 women suggested that perineal HAase injection during the second stage of labour may result in a lower incidence of perineal trauma (tears or episiotomy, or both) (RR 0.61, 95% CI 0.42 to 0.88; 373 participants, 3 studies; low-certainty evidence) compared with no intervention. The evidence is very uncertain for episiotomy (RR 0.79, 95% CI 0.44 to 1.42; 373 participants, 3 studies), first and second degree perineal lacerations (RR 0.59, 95% CI 0.30 to 1.18; 373 participants, 3 studies) and perineal oedema one hour after vaginal delivery (RR 0.32, 95% CI 0.01 to 7.71; 139 participants, 1 study), all very low certainty evidence. No third and fourth degree perineal lacerations, perineal oedema 24 hours after vaginal delivery or Apgar scores less than 7 at five minutes were reported in these three trials. No side effects were reported in the included trials.

AUTHORS' CONCLUSIONS

Perineal HAase injection during the second stage of labour may result in a lower incidence of perineal trauma (tears or episiotomy, or both) compared with no intervention, but not compared with placebo injection, in women having a vaginal delivery. Meanwhile, perineal HAase injection likely reduces the incidence of perineal oedema 24 hours after vaginal delivery compared with placebo injection. The potential use of perineal HAase injection as a method to reduce perineal trauma and perineal oedema remains to be determined as the number of high-quality trials and outcomes reported was too limited to draw conclusions on its effectiveness and safety. Further rigorous randomised controlled trials are required to evaluate the role of perineal HAase injection in vaginal deliveries, including evaluating whether there is any differential effect based on the dose, frequency and positioning of HAase injection.

Parturition at term: induction, second and third stages of labor, and optimal management of life-threatening complications-hemorrhage, infection, and uterine rupture

Childbirth is a defining moment in anyone's life, and it occurs 140 million times per year. Largely a physiologic process, parturition does come with risks; one mother dies every two minutes. These deaths occur mostly among healthy women, and many are considered preventable. For each death, 20 to 30 mothers experience complications that compromise their short- and long-term health. The risk of birth extends to the newborn, and, in 2020, 2.4 million neonates died, 25% in the first day of life. Hence, intrapartum care is an important priority for society. The American Journal of Obstetrics & Gynecology has devoted two special Supplements in 2023 and 2024 to the clinical aspects of labor at term. This article describes the content of the Supplements and highlights new developments in the induction of labor (a comparison of methods, definition of failed induction, new pharmacologic agents), management of the second stage, the value of intrapartum sonography, new concepts on soft tissue dystocia, optimal care during the third stage, and common complications that account for maternal death, such as infection, hemorrhage, and uterine rupture. All articles are available to subscribers and non-subscribers and have supporting video content to enhance dissemination and improve intrapartum care. Our hope is that no mother suffers because of lack of information.

Perineal repair performed by midwives in Australia: A cross-sectional survey study of education and practice

PROBLEM

Perineal repair is generally not a widely practiced skill amongst Australian midwives, the reasons for this are uncertain and may result in technique variations.

BACKGROUND

Many birthing women experience perineal tears that require suturing. As midwives attend the majority of vaginal births, they would be ideally placed to undertake perineal repair.

AIM

To describe the current level of midwifery perineal repair skill acquisition, knowledge, techniques and utilization by Australian midwives.

METHODS

An online survey was distributed to Australian College of Midwives members and shared via social media. Data on demographics, suturing techniques, reasons why midwives did or did not suture and barriers to skill acquisition were collected. Descriptive statistics were calculated for all variables including percentages, mean, standard deviation, median and range as appropriate.

FINDINGS

375 completed surveys were received between April and May 2023. 197 midwives indicated current suturing practice and 178 did not suture. Contributing to continuity of care was the most common motivating factor. The use of a continuous suturing technique for all layers of a perineal injury was reported by the majority of suturing midwives. There was greater variation in the management of labial tears. Low numbers of skilled midwives to support attaining competency and high workloads were the main barriers to attaining suturing skills.

DISCUSSION

Australian midwives view perineal suturing as a valid midwifery skill that can contribute to continuity of care. Largely organisational barriers exist to skill development and greater utilisation.

CONCLUSION

Perineal repair should be prioritised as a fundamental midwifery skill.