Obstetric Anal Sphincter Injury and Anal Incontinence Following Vaginal Birth: A Systematic Review and Meta-Analysis

Facilitators and Barriers to Implementation of Perineal Techniques: A Scoping Review Applying the Consolidated Framework for Implementation Research

AIM

To summarise the barriers and facilitators to the clinical implementation of perineal techniques and to provide evidence-based insights for decision-making based on existing research.

DESIGN

A scoping review.

DATA SOURCES

Nine electronic databases (PubMed, Cochrane Library, Embase, CINAHL, ProQuest, CNKI, WanFang, VIP and SinoMed) were systematically searched on 4 February 2024.

REVIEW METHODS

This study followed Joanna Briggs Institute's scoping review methodology. The barriers and facilitators identified in the included studies were mapped to the domains of the Consolidated Framework for Implementation Research (CFIR): intervention characteristics, outer setting, inner setting, characteristics of individuals and process.

RESULTS

A total of 18 studies were finally included and analysed. The most frequently identified facilitator was theoretical education for midwives (inner setting). Common barriers included: lack of time to implement perineal techniques (intervention characteristics); labour pain and women's stress due to insufficient understanding of the birthing process, as well as women's reluctance to receive the perineal techniques (outer setting); risk factors for OASIS (inner setting); insufficient theoretical education for midwives and inadequate prenatal education for pregnant women (inner setting) and concerns about potential medical disputes among performers (characteristics of individuals).

CONCLUSIONS

Many of the factors influencing the implementation of perineal techniques identified in this review are modifiable. Developing implementation strategies based on these factors can promote the successful implementation of these perineal techniques in clinical settings.

IMPLICATIONS FOR THE PROFESSION

This scoping review could serve as a reference framework for health authorities in developing strategies to promote the use of perineal techniques in clinical practice.

IMPACT

Existing research has primarily focused on the outer setting, inner setting and characteristics of individuals implementing perineal techniques. Therefore, there is a need for more high-quality studies focusing on intervention characteristics and the implementation process.

REPORTING METHOD

This study followed the PRISMA extension for scoping reviews.

PATIENT AND PUBLIC CONTRIBUTION

Not applicable.

Evolution of Episiotomy Incidence and Obstetric Anal Sphincter Injury Over 10 Years: A Mixed-Methods Study

OBJECTIVE

To assess the association between the decrease in the use of episiotomy and the incidence of obstetric anal sphincter injuries (OASIS) over a 10-year period and understand their reasons by interviewing obstetricians and midwives.

DESIGN

Mixed-methods study.

SETTING

A tertiary university public maternity hospital, Paris, France.

POPULATION

All patients who delivered vaginally between January 2012 and December 2021 in the maternity hospital and 20 interviews with obstetrician-gynaecologists and midwives.

METHODS

Quantitative data analysis using a multivariate logistic regression model, stratifying on the mode of delivery. Semi-structured interview with 20 obstetricians and midwives, with an interview guide.

MAIN OUTCOME MEASURES

Obstetric anal sphincter injuries.

RESULTS

The quantitative study of 37 942 women (16.1% of whom had an episiotomy and 1.4% OASIS) shows that, the incidence of episiotomy decreased from 25% to 7.6% over this 10-year period. Allow on the known risk factors for OASIS, we demonstrate that its incidence rose (adjusted odds ratio 1.35, 95% confidence interval 1.09-1.67) for the years in which the episiotomy incidence fell below 10% for the overall population. The interviews showed professionals' apparent awareness that the decreased incidence in episiotomy (achieved by changes in departmental policy, redefining its benefit/risk balance and acquiring new skills to manage the expulsion phase) could lead to an increased incidence of OASIS.

CONCLUSIONS

Decreasing the episiotomy incidence appears to be associated with a rising incidence of OASIS. The optimal incidence of episiotomy remains controversial in the literature and among professionals.

The Efficacy of Honey for the Treatment of Perineal Wounds Following Vaginal Birth: A Narrative Review

Background/Objectives: During vaginal delivery, the perineum can be damaged either by episiotomy or by a spontaneous perineal tear, leading to several complications. The wound healing process should proceed as quickly and properly as possible without an infection. Medical grade honey (MGH) may be a potent treatment option due to its antimicrobial and pro-healing activities. This literature study investigated the role of honey in the treatment of vaginal wounds after delivery. Methods: Studies published before 17 July 2024 in the PubMed, Web of Science, Embase, Scopus, EBSCO host/CINAHL, Cochrane Library, and Google Scholar databases about honey, episiotomy wounds, and perineal tears, as well as those investigating wound healing and/or pain, were assessed. Results: Ten studies were included (six RCTs, of which three were double-blind, one was quasi-experimental with a posttest only, and three were observational studies without a control group), with 723 participants in total. Six of the seven controlled studies showed honey significantly improved various outcome measures, such as improved wound healing, and reduced need for pain medication. The three non-controlled studies also had a positive outcome, improving wound healing and decreasing pain intensity and prickling sensation. However, the overall quality of available evidence is limited. Different types of honey concentrations, origins, and additives were used in the included studies. Using a standardized MGH formulation may help to maintain consistent and potent effects. Therefore, additional research is needed to determine the efficacy of MGH in perineal trauma and to establish guidelines for clinical use. Conclusions: Honey potentially has a great effect on wound healing of perineal trauma; however, more research is necessary to substantiate the findings in the current literature.

Improving apgar scores and reducing perineal injuries through midwife-led quality improvements: an observational study in Uganda

BACKGROUND

Globally, the quality of maternal and newborn care remains inadequate, as seen through indicators like perineal injuries and low Apgar scores. While midwifery practices have the potential to improve care quality and health outcomes, there is a lack of evidence on how midwife-led initiatives, particularly those aimed at improving the use of dynamic birth positions, intrapartum support, and perineal protection, affect these outcomes.

OBJECTIVE

To explore how the use of dynamic birth positions, intrapartum support, and perineal protection impact the incidence of perineal injuries and the 5-min Apgar score within the context of a midwife-led quality improvement intervention.

METHODS

A cohort of 630 women with uncomplicated full-term pregnancies was recruited from a hospital in Uganda. Observations and questionnaires assessed birth positions, intrapartum support, perineal protection, health outcomes and maternal characteristics. Primary outcomes included perineal injuries and the 5-min Apgar scores. The primary outcomes were analysed using descriptive data, with trends visualised through a run chart to assess changes during the midwife-led Quality Improvement intervention. Secondary outcomes included postpartum haemorrhage, admission to neonatal intensive care, newborn resuscitation, skin-to-skin care, and breastfeeding initiation.

RESULT

A statistically significant association was found between women having intact perineum (i.e., no perineal injuries) and giving birth in a dynamic birth position [AOR; 0.6 (95% CI 0.4 - 0.90)], receiving intrapartum support [AOR; 0.9 (95% CI 0.9 - 1.0)], and using perineal protection measures [AOR; 0.3 (95% CI 0.2 - 0.5)]. Newborns with an Apgar score below seven at five minutes were significantly associated with intrapartum support [AOR; 0.8 (95% CI 0.7 - 1.0)] and perineal protection [AOR; 0.3 (95% CI 0.1 - 0.8)]. However, after adjustment, no significant association was found between Apgar score and birth positions [AOR; 0.5 (95% CI 0.2 - 1.5)]. Perineal injuries and low Apgar scores significantly decreased (p < 0.001) during the Midwife-led Quality Improvement intervention period.

CONCLUSION

This study demonstrates that low 5-min Apgar scores and perineal injuries decreased during a midwife-led Quality Improvement intervention focusing on dynamic birth positions, intrapartum support, and perineal protection strategies.

CLINICAL TRIAL

This study is registered on ClinicalTrials.gov as of 14th February 2022, under registration number NCT05237375.

Does combining warm perineal compresses with perineal massage during the second stage of labor reduce perineal trauma? A randomized controlled trial

BACKGROUND

Various interventions have been applied to reduce perineal trauma and obstetric anal sphincter injuries (OASIS). The efficacy of warm compresses during the second stage of labor for reducing the occurrence of perineal tears is controversial.

OBJECTIVE

We aimed to compare rates of spontaneous perineal tears requiring suturing, between women who received warm compresses plus perineal massage vs perineal massage alone.

STUDY DESIGN

Women admitted to a single tertiary university-affiliated hospital between June 2023 and January 2024 were randomized to receive warm compresses and perineal massage (n=206) or perineal message only (n=206) during the second stage of labor. Excluded were women with a history of third-degree perineal tear, nut allergy, fetal death, Crohn's disease with perineal involvement, or delivery number >5. Participant allocation was concealed until the second stage of labor. The allocated perineal management was implemented at the time of active fetal descent and when the participant felt the need to push. During active maternal pushing, gentle perineal massage with almond oil was performed in both study groups. In 1 group, warm compresses were applied between contractions, for a minimum of 10 minutes and a maximum of 30. The temperature of the warm compresses was kept in the range of 45°C to 59°C. The perineum was protected during delivery with a hands-on technique. After delivery, the perineum was assessed by an intervention-blinded senior midwife and rectal examination was performed for ruling out OASIS. The primary outcome was the rate of perineal tears requiring suturing. Secondary outcomes included the rates of OASIS and episiotomies. A sub-analysis according to parity and an intention-to-treat analysis were performed.

RESULTS

Similar proportions of women treated and not treated with warm compresses had spontaneous perineal tears requiring suturing: 43.7% vs 45.1%, P value=.766. The groups did not differ in the proportions with first-degree tears, 22.8% vs 21.4%, P value=.722; second-degree tears, 21.4% vs 23.8%, P value=.566; and OASIS rates, 0.5% in each. In a sub-analysis according to parity, the proportion with perineal tears did not differ between the 2 groups.

CONCLUSION

For women treated during the second stage of labor with warm compresses and perineal massage, compared to perineal massage alone, the rate of spontaneous perineal tears requiring suturing was similar. El resumen está disponible en Español al final del artículo.

Trends and determinants of the use of episiotomy in a prospective population-based registry from central India

BACKGROUND

Findings from research and recommendations from the World Health Organization favor restrictive use of episiotomy, but whether this guidance is being followed in India, and factors associated with its use, are not known. This study sought to document trends in use of episiotomy over a five-year period (2014-2018); to examine its relationship to maternal, pregnancy, and health-system characteristics; and to investigate its association with other obstetric interventions.

METHODS

We conducted a secondary analysis of data collected by the Maternal Newborn Health Registry, a prospective population-based pregnancy registry established in Central India (Nagpur, Eastern Maharashtra). We examined type of birth and use of episiotomy in vaginal deliveries from 2014 to 2018, as well as maternal and birth characteristics, health systems factors, and concurrent obstetric interventions associations with its use with multivariable Poisson regression models.

RESULTS

During the five-year interval, the rate of episiotomy in vaginal birth rose from 13 to 31% despite a decline in assisted vaginal birth. Associations with episiotomy were found for the following factors: prior birth, multiple gestations, seven or more years of maternal education, higher gestational age, higher birthweight, delivery by an obstetrician (as compared to midwife or general physician), and birth in hospital (as compared to clinic or health center). After adjusting for these factors, year over year rise in episiotomy was significant with an adjusted incidence rate ratio (AIRR) of 1.10 [95% confidence interval (CI) 1.08-1.12; p = 0.002]. We found an association between episiotomy and several other obstetric interventions, with the strongest relationship for maternal treatment with antibiotics (AIRR 4.23, 95% CI 3.12-5.73; p = 0.001).

CONCLUSIONS

Episiotomy in this population-based sample from central India steadily rose from 2014 to 2018. This increase over time was observed even after adjusting for patient characteristics, obstetric risk factors, and health system features, such as specialty of the birthing provider. Our findings have important implications for maternal-child health and respectful maternity care given that most women prefer to avoid episiotomy; they also highlight a potential target for antibiotic stewardship as part of global efforts to combat antimicrobial resistance.

TRIAL REGISTRATION

The study was registered at ClinicalTrials.gov under reference number NCT01073475.

Translation and validation of the international consultation on incontinence questionnaire-Bowel in Danish men and women with pelvic floor disorders

BACKGROUND

We lack a comprehensive validated Danish questionnaire to evaluate symptoms and bother regarding anal incontinence (AI). The International Consultation on Incontinence Questionnaire-Bowel (ICIQ-B) is an internationally recommended questionnaire containing 21 items, of which 17 are scored in three subscales: bowel pattern, bowel control, and quality of life.

AIMS

To translate the ICIQ-B into Danish and to validate the Danish version in pelvic floor disorder (PFD) patients with and without AI.

METHODS

The ICIQ-B was translated by a panel of healthcare professionals followed by cognitive interviews with PFD patients attending an outpatient clinic. Revisions were undertaken using an iterative process, and a backward translation was performed for the final version. Pretesting and test-retest of the ICIQ-B were done online and administrated together with the St. Mark's score. Content, structural, convergent and discriminant validity were assessed, followed by an evaluation of relative and absolute reliability, including the smallest real difference (SRD).

RESULTS

Thirty cognitive patient interviews were performed, resulting in three revisions. The Danish ICIQ-B was found to be comprehensible and relevant but lacked items addressing the psychological impact of bowel problems. The ICIQ-B was completed online by 227 PFD patients with and without AI. The structural validity of the bowel pattern subscale could not be retrieved. Patients indicating AI had significantly higher ICIQ-B and St. Mark's scores than patients without AI, and ICIQ-B subscale scores correlated moderately with St. Mark's scores. Internal consistency was good except for the bowel pattern subscale. Seventy-six patients completed test-retest. Relative reliability was excellent for subscale scores and moderate or good for single items except for the item concerning stool consistency, which was weak. The SRD was found to be 2.8 for the bowel pattern subscale, 4.3 for bowel control subscale, and 3.6 for the quality-of-life subscale.

CONCLUSION

The Danish version of the ICIQ-B can be used for Danish patients with PFD, and discriminant validity is good. The structural validity and the internal consistency of the bowel pattern subscale are questionable, indicating that some items do not represent the underlying construct. Test-retest reliability of the ICIQ-B is acceptable, but the change needed to reflect a real change above the measurement error in each subscale is three to four points.

Caesarean section and anal incontinence in women after obstetric anal sphincter injury: A systematic review and meta-analysis

BACKGROUND

Approximately 50% women who give birth after obstetric anal sphincter injury (OASI) develop anal incontinence (AI) over their lifetime.

OBJECTIVE

To evaluate current evidence for a protective benefit of planned caesarean section (CS) to prevent AI after OASI.

SEARCH STRATEGY

MEDLINE/PubMed, Embase 1974-2024, CINAHL and Cochrane to 7 February 2024 (PROSPERO CRD42022372442).

SELECTION CRITERIA

All studies reporting outcomes after OASI and a subsequent birth, by any mode.

DATA COLLECTION AND ANALYSIS

Eighty-six of 2646 screened studies met inclusion criteria, with nine studies suitable to meta-analyse the primary outcome of 'adjusted AI' after OASI and subsequent birth. Subgroups: short-term AI, long-term AI, AI in asymptomatic women.

SECONDARY OUTCOMES

total AI, quality of life, satisfaction/regret, solid/liquid/flatal incontinence, faecal urgency, AI in women with and without subsequent birth, change in AI pre- to post- subsequent birth.

MAIN RESULTS

There was no evidence of a difference in adjusted AI after subsequent vaginal birth compared with CS after OASI across all time periods (OR = 0.92, 95% CI 0.72-1.20; 9 studies, 2104 participants, I2 = 0% p = 0.58), for subgroup analyses or secondary outcomes. There was no evidence of a difference in AI in women with or without subsequent birth (OR = 1.00 95% CI 0.65-1.54; 10 studies, 970 participants, I2 = 35% p = 0.99), or pre- to post- subsequent birth (OR = 0.79 95% CI 0.51-1.25; 13 studies, 5496 participants, I2 = 73% p = 0.31).

CONCLUSIONS

Due to low evidence quality, we are unable to determine whether planned caesarean is protective against AI after OASI. Higher quality evidence is required to guide personalised decision-making for asymptomatic women and to determine the effect of subsequent birth mode on long-term AI outcomes.

Overlooked by the obstetric gaze - how women with persistent health problems due to severe perineal trauma experience encounters with healthcare services: a qualitative study

BACKGROUND

During the first year postpartum, about 25 per cent of Swedish women with severe perineal trauma (SPT), i.e., a third- or fourth-degree perineal laceration at childbirth, are unsatisfied with their healthcare contacts. Further, there is a lack of research on the more long-term experiences of healthcare encounters among women with persistent SPT-related health problems. This study explores how women with self-reported persistent SPT-related health problems experience their contact with healthcare services 18 months to five years after childbirth when the SPT occurred.

METHODS

In this descriptive qualitative study, a purposive sample of twelve women with self-reported persistent health problems after SPT were individually interviewed from November 2020 - February 2022. The data was analysed using inductive qualitative content analysis.

RESULTS

Our results showed a paradoxical situation for women with persistent health problems due to SPT. They struggled with their traumatised body, but healthcare professionals rejected their health problems as postpartum normalities. This paradox highlighted the women's difficulties in accessing postpartum healthcare, rehabilitation, and sick leave, which left them with neglected healthcare needs, diminished emotional well-being, and loss of financial and social status. Our results indicated that these health problems did not diminish over time. Consequently, the women had to search relentlessly for a 'key person' in healthcare who acknowledged their persistent problems as legitimate to access needed care, rehabilitation, and sick leave, thus feeling empowered.

CONCLUSIONS

Our study revealed that women with persistent SPT-related health problems experienced complex health challenges. Additionally, their needs for medical care, rehabilitation, and sick leave were largely neglected. Thus, the study highlights an inequitable provision of SPT-related healthcare services in Sweden, including regional disparities in access to care. Hence, the authors suggest that Swedish national guidelines for SPT-related care need to be developed and implemented, applying a woman-centered approach, to ensure equitable, effective, and accessible healthcare.

Defecatory dysfunction and anal incontinence symptoms among women with pelvic organ prolapse: 5-year retrospective study in a tertiary center

OBJECTIVE

To investigate the prevalence of DD and AI with POP symptoms in females attending a urogynecology clinic, and to identify factors associated with DD and AI in POP symptoms patients.

METHODS

Computer-based medical records of women with POP symptoms attending a urogynecology clinic in a referral tertiary center between January 2016 and December 2020 were reviewed. Demographic data were collected. Selected defecatory dysfunction (DD) and anal incontinence (AI) were recorded. The associations between patient characteristics, site and severity of prolapse, and DD and AI symptoms in POP patients were investigated for identified associated factors.

RESULTS

The mean age of the 754 participants was 65.77 ± 9.44 years. Seven hundred and fifteen (94.83%) were menopause. The prevalence of DD and AI in patients with POP symptoms was 44.03% (332/754) and 42.04% (317/754) according to the PFBQ and medical history records, respectively. Advanced posterior wall prolapse (OR 1.59, 95% CI 1.10-2.30) and wider GH (OR1.23, 95% CI 1.05-1.43) were identified as risk factors for DD by multivariate analysis. Additionally, single-compartment prolapse (OR 0.4, 95% CI 0.21-0.76) and a stronger pelvic floor muscle assessed with brink score (OR 0.94, 95% CI 0.88-0.98) are protective factors for AI.

CONCLUSION

DD and AI are prevalent among women with POP symptoms who visit a urogynecology clinic. DD should be evaluated in women with POP symptoms especially in women with increased genital hiatus and point Ap beyond the hymen. To prevent AI, women with POP should be encouraged to perform pelvic floor muscle training in order to increase pelvic floor muscle strength.

Recovery from Obstetric Anal Sphincter Injury in a Prospective Cohort of First Births

OBJECTIVE

To identify risk factors for obstetric anal sphincter injuries (OASIS) for primiparous women who gave birth vaginally and to compare recovery by OASIS status in three domains as follows: (1) physical health and functioning, (2) mental health, and (3) healthcare utilization.

STUDY DESIGN

This secondary analysis used data from 2,013 vaginal births in the First Baby Study, a prospective cohort study of women with first births between 2009 and 2011. Interview data at multiple time points were linked to birth certificate and hospital discharge data. The key exposure of interest was OASIS (3rd or 4th degree perineal laceration, identified in the hospital discharge data; n = 174) versus no OASIS (n = 1,839). We used multivariable logistic regression models to examine the association between OASIS and a range of outcomes including physical health and functioning, depression, and health care utilization, assessed at 1 month and 6 months postpartum.

RESULTS

Eight percent of women had OASIS. In adjusted models, there were no differences in general physical health and functioning measures by OASIS (such as fatigue and overall self-rated health), but women with OASIS had higher rates of reporting perineal pain (p < 0.001), accidental stool loss (p = 0.001), and bowel problems (p < 0.001) at 1-month postpartum. By 6-month postpartum, there were no differences in reported physical health and functioning. There were no differences in probable depression at 1- or 6-month postpartum. Women with OASIS were more likely to attend a comprehensive postpartum visit, but there were no other differences in health care utilization by OASIS.

CONCLUSION

Women with OASIS were at increased risk of accidental stool loss, bowel problems, and perineal pain in the immediate postpartum period. Women who had OASIS had similar physical functioning across a range of general health outcomes to women who gave birth vaginally without OASIS.

KEY POINTS

· Higher risk of bowel problems and accidental stool loss 1-month postpartum with OASIS.. · Higher risk of perineal pain 1-month postpartum with OASIS.. · No differences in health outcomes at 6-months postpartum by OASIS..

Severe Perineal Lacerations in First Delivery: Association with Subsequent Reproductive Outcomes

Background: Severe perineal lacerations (SPLs), common worldwide, are associated with short- and long-term complications: pelvic floor disorders, fecal incontinence, fistula, and profound psychological impacts. Limited research suggests that experiencing SPL may influence future reproductive intentions, but research on outcomes is lacking. Methods: We analyzed the effect of experiencing SPL during a first delivery among a large cohort of Swedish births between 1992 and 2013. We used linear and multinomial logistic regression to estimate the associations between SPL and four reproductive outcomes: subsequent total birth number, probability of a second birth, interpregnancy interval (IPI), and subsequent scheduled cesarean birth. Results: Among 947,035 singleton live-born first-births, we found that experiencing SPL was associated with slightly fewer overall births in fully adjusted models (a decrease of -0.020 births; 95% confidence interval [CI]: -0.028 to -0.012), but no difference in the probability of a second birth (risk ratio [RR]: 1.00; 95% CI: 0.99 to 1.00) or IPI. Scheduled cesarean was increased in births after SPL (adjusted RR: 4.57; 95% CI: 4.42 to 4.73). A secondary comparison of SPL to severe postpartum hemorrhage suggests that some of these observed differences may be related to experiencing any severe outcome, and some specifically to perineum disruption. Conclusion: This study provides a deeper understanding of the long-term impacts of SPL, which may be useful in informing best clinical practices for supporting women who have experienced SPL.

Complications 8 weeks after an obstetric second-degree perineal laceration in relation to body mass index

INTRODUCTION AND HYPOTHESIS

How body mass index (BMI) affects pelvic floor function after a second-degree perineal laceration is unknown. The hypothesis of this study is that pelvic floor dysfunction and complications after an obstetric second-degree perineal laceration are more common in women with a higher BMI 8 weeks postpartum.

METHODS

This register-based cohort study includes 10,876 primiparous women with an obstetric second-degree perineal laceration between 2014 and 2021. Data were retrieved from the Swedish Perineal Laceration Registry. Outcomes in relation to maternal BMI were urinary incontinence (UI), anal incontinence (AI) and common complications attributable to the laceration. Uni- and multivariate logistic regressions were used for comparison between normal weight (BMI < 24.9, reference), overweight (25.0-29.9) and obese (≥ 30) women.

RESULTS

Multivariate analyses showed an increased risk for UI in both overweight and obese women compared to normal-weight women 8 weeks after a second-degree perineal laceration with an adjusted odds ratio (aOR) of 1.21 (CI 1.02-1.44) and 1.27 (CI 1.13-1.58) respectively. Overweight and obese women had a decreased risk for AI (aOR 0.81, CI 0.68-0.96; aOR 0.72, CI 0.57-0.90 respectively) compared with normal-weight women. No significant differences were found in the univariate analyses over BMI strata concerning complications after perineal laceration.

CONCLUSIONS

Primiparous overweight and obese women report less AI and more UI than normal-weight women 8 weeks after a second-degree perineal laceration. No differences were found regarding complications. These findings are new and merit further study to find potential preventive factors and interventions after a second-degree perineal laceration.

Episiotomy: Evolution of a Common Obstetric Practice at a Public Hospital

OBJECTIVE

This study aimed to evaluate the rate and impact of episiotomy on maternal and newborn outcomes before and after restricted use of episiotomy.

STUDY DESIGN

This population-based observational study used an obstetric database of all deliveries since 1990 that has been maintained with quality checks. Inclusion criteria were vaginal deliveries at ≥37 weeks. Exclusion criteria included fetal malformations, multifetal gestations, or fetal deaths known on arrival to Labor and Delivery. The primary outcomes of interest were episiotomy, perineal lacerations, and newborn outcomes. To evaluate the impact of restrictive episiotomy, data from 1990 to 1997 (35% overall episiotomy rate) were compared with data from 2010 to 2017 (2.5% overall episiotomy rate). Univariable analysis of maternal and infant outcomes were performed comparing the two-time epochs with the Pearson's Chi-squared test.

RESULTS

Overall, 268,415 women met inclusion criteria and 49,089 (18.2%) had an episiotomy. The rate of episiotomy decreased from 37% of deliveries in 1990 to 2% in 2017. A total of 82,082 deliveries occurred in the 1990 to 1997 epoch and 57,183 in 2010 to 2017. Indicated use of episiotomy was associated with a significant decrease in third and fourth degree lacerations. Immediate newborn condition (5-minute Apgar's score ≤3 and umbilical artery pH <7.1) and neonatal outcomes (intraventricular hemorrhage [IVH] grade 3/4, positive culture sepsis, neonatal seizures, and neonatal demise) were not significantly different.

CONCLUSION

Selective, indicated use of episiotomy compared with routine was associated with lower rates of third/fourth-degree lacerations with no change in neonatal outcomes. The common obstetric practice of routinely performing episiotomy, presumably to prevent perineal trauma, proved untrue when analyzed over almost three decades.

KEY POINTS

· Episiotomy use decreased overtime at our institution.. · Decreased episiotomy use was associated with significant improvement in maternal outcomes.. · Neonatal outcomes were unchanged suggesting no deleterious effects with restricted episiotomy..

Moderate or intensive management of the active phase of second-stage labor and risk of urinary and anal incontinence: results of the PASST randomized controlled trial

BACKGROUND

Incontinence occurs frequently in the postpartum period. Several theoretical pathophysiological models may underlie the hypothesis that different types of management of the active phase of the second stage of labor have different effects on pelvic floor muscles and thus perhaps affect urinary and anal continence.

OBJECTIVE

This study aimed to evaluate the impact of "moderate pushing" on the occurrence of urinary or anal incontinence compared with "intensive pushing," and to determine the factors associated with incontinence at 6 months postpartum.

STUDY DESIGN

This was a planned analysis of secondary objectives of the PASST (Phase Active du Second STade) trial, a multicenter randomized controlled trial. PASST included nulliparous women with singleton term pregnancies and epidural analgesia, who were randomly assigned at 8 cm of dilatation to either the intervention group that used "moderate" pushing (pushing only twice during each contraction, resting regularly for 1 contraction in 5 without pushing, and no time limit on pushing) or the control group following the usual management of "intensive" pushing (pushing 3 times during each contraction, with no contractions without pushing, with an obstetrician called to discuss operative delivery after 30 minutes of pushing). Data about continence were collected with validated self-assessment questionnaires at 6 months postpartum. Urinary incontinence was defined by an ICIQ-UI SF (International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form) score ≥1 and anal incontinence by a Wexner score ≥2. A separate analysis was also performed among the more severely affected women (ICIQ-UI SF ≥6 and Wexner ≥5). Factors associated with incontinence were assessed with univariate and multivariable analyses.

RESULTS

Among 1618 women initially randomized, 890 (55%) returned the complete questionnaire at 6 months. The rate of urinary incontinence was 36.6% in the "moderate" pushing group vs 38.5% in the "intensive" pushing group (relative risk, 0.95; 95% confidence interval, 0.80-1.13), whereas the rate of anal incontinence was 32.2% vs 34.6% (relative risk, 0.93; 95% confidence interval, 0.77-1.12). None of the obstetrical factors studied related to the second stage of labor influenced the occurrence of urinary or anal incontinence, except operative vaginal delivery, which increased the risk of anal incontinence (adjusted odds ratio, 1.50; 95% confidence interval, 1.04-2.15).

CONCLUSION

The results of the PASST trial indicate that neither moderate nor intensive pushing efforts affect the risk of urinary or anal incontinence at 6 months postpartum among women who gave birth under epidural analgesia.

Evaluating the risk factors for the development of benign disorders of defaecation: a surgical perspective

PURPOSE

There remains uncertainty as to which risk factors are important for the development of defaecatory problems as a result of heterogeneity of published evidence. Understanding the impact of risk factors may be important in selecting targets for disease prevention or reversal. The aim of this study was to identify and evaluate risk factors for faecal incontinence and chronic constipation.

METHODS

Risk factors for chronic constipation and faecal incontinence were long-listed from scientific literature, then anonymously evaluated (by 50 predominantly colorectal surgical experts from the UK Pelvic Floor Society) using a Delphi technique. Each risk factor was rated as independent, a co-factor, or not a risk factor. Independent risk factors were rated between 1 (not important) and 10 (critically important) with mean (± standard deviation) calculated.

RESULTS

Thirty-eight risk factors for chronic constipation were evaluated. Eighteen were classed as independent and 16 as co-factors. Opioid analgesia (7.87 ± 2.05), eating disorders (7.80 ± 1.72), and history of abuse (7.70 ± 1.89) were scored as most important independent risk factors. Female sex (6.60 ± 2.02) was considered an independent risk factor but increasing age was rated a co-factor. Thirty-three risk factors for faecal incontinence were evaluated. Twenty were classed as independent and eight as co-factors. Third- or fourth-degree tear (8.88 ± 1.57), instrumental delivery (8.47 ± 1.58), and grand multiparity (8.00 ± 1.63) were rated most important. Increasing age (7.41 ± 2.14) and female sex (7.58 ± 2.05) were both considered independent risk factors.

CONCLUSIONS

Several risk factors for chronic constipation and faecal incontinence were selected by Delphi approach. These factors will feed forward into Bayesian models of disease prediction that combine data and expert knowledge.

The relationship between perineal trauma and postpartum psychological outcomes: a secondary analysis of a population-based survey

BACKGROUND

Perineal trauma, involving either naturally occurring tears or episiotomy, is common during childbirth but little is known about its psychological impact. This study aimed to determine the associations between childbirth related perineal trauma and psychological outcomes reported by women three months after giving birth and to explore factors that could mediate relationships between perineal trauma and maternal psychological outcomes.

METHODS

This study was a secondary analysis of data from a cross-sectional population-based survey of maternal and infant health. A total of 4,578 women responded to the survey, of which 3,307 had a vaginal birth and were eligible for inclusion into the analysis. Symptoms of depression, anxiety, and post-traumatic stress (PTS) symptoms were assessed using validated self- report measures. Physical symptoms were derived from a checklist and combined to produce a composite physical symptoms score. Regression models were fitted to explore the associations.

RESULTS

Nearly three quarters of women experienced some degree of perineal trauma. Women who experienced perineal trauma reported having more postnatal physical symptoms (adjusted proportional odds ratio 1.47, 95%CI 1.38 to 1.57, p-value < 0.001), were more likely to report PTS symptoms (adjusted OR 1.19, 95%CI 1.04 to 1.36, p-value 0.010), and there was strong evidence that each unit increase in the physical symptoms score was associated with between 38 and 90% increased adjusted odds of adverse psychological symptoms. There was no evidence of association between perineal trauma and satisfaction with postnatal care, although there was strong evidence that satisfaction with labour and birth was associated with 16% reduced adjusted odds of depression and 30% reduced adjusted odds of PTS symptoms.

CONCLUSIONS

Women who experienced perineal trauma were more likely to experience physical symptoms, and the more physical symptoms a woman experienced the more likely she was to report having postnatal depression, anxiety and PTS symptoms. There was some evidence of a direct association between perineal trauma and PTS symptoms but no evidence of a direct association between perineal trauma and depression or anxiety. Assessment and management of physical symptoms in the postnatal period may play an important role in reducing both physical and psychological postnatal morbidity.

Prediction models for perineal lacerations during childbirth: A systematic review and critical appraisal

BACKGROUND

Perineal lacerations could lead to substantial morbidities for women. A reliable prediction model for perineal lacerations has the potential to guide the prevention. Although several prediction models have been developed to estimate the risk of perineal lacerations, especially third- and fourth-degree perineal lacerations, the evidence about the model quality and clinical applicability is scarce.

OBJECTIVES

To systematically review and critically appraise the existing prediction models for perineal lacerations.

METHODS

Seven databases (PubMed, Embase, The Cochrane Library, Cumulative Index to Nursing and Allied Health Literature, SinoMed, China National Knowledge Infrastructure, and Wanfang Data) were systematically searched from inception to July 2022. Studies that developed prediction models for perineal lacerations or performed external validation of existing models were considered eligible to include in the systematic review. Two reviewers independently conducted data extraction according to the Checklist for critical Appraisal and data extraction for systematic Reviews of prediction Modelling Studies. The risk of bias and the applicability of the included models were assessed with the Prediction Model Risk of Bias Assessment Tool. A narrative synthesis was performed to summarize the characteristics, risk of bias, and performance of existing models.

RESULTS

Of 4345 retrieved studies, 14 studies with 22 prediction models for perineal lacerations were included. The included models mainly aimed to estimate the risk of third- and fourth-degree perineal lacerations. The top five predictors used were operative vaginal birth (72.7 %), parity/previous vaginal birth (63.6 %), race/ethnicity (59.1 %), maternal age (50.0 %), and episiotomy (40.1 %). Internal and external validation was performed in 12 (54.5 %) and seven (31.8 %) models, respectively. 13 studies (92.9 %) assessed model discrimination, with the c-index ranging from 0.636 to 0.830. Seven studies (50.0 %) evaluated the model calibration using the Hosmer-Lemeshow test, Brier score, or calibration curve. The results indicated that most of the models had fairly good calibration. All the included models were at higher risk of bias mainly due to unclear or inappropriate methods for handling missing data and continuous predictors, external validation, and model performance evaluation. Six models (27.3 %) showed low concerns about applicability.

CONCLUSIONS

The existing models for perineal lacerations were poorly validated and evaluated, among which only two have the potential for clinical use: one for women undergoing vaginal birth after cesarean delivery, and the other one for all women undergoing vaginal birth. Future studies should focus on robust external validation of existing models and the development of novel models for second-degree perineal laceration.

PROSPERO REGISTRATION NUMBER

CRD42022349786.

TWEETABLE ABSTRACT

The existing models for perineal lacerations during childbirth need external validation and updating. Tools are needed for second-degree perineal laceration.

The incidence of anal incontinence following obstetric anal sphincter injury graded using the Sultan classification: a network meta-analysis

OBJECTIVE

This study aimed to systematically determine and compare the incidence of anal incontinence between those with different grades of obstetric anal sphincter injury.

DATA SOURCES

Ovid MEDLINE, Embase, and the Cochrane Library were searched from January 2000 to April 2021.

STUDY ELIGIBILITY CRITERIA

Observational studies investigating the incidence of anal incontinence following an obstetric anal sphincter injury that was graded using the Sultan classification were eligible for inclusion. To allow comparison between individual tear grades (3a, 3b, 3c, fourth), a network meta-analysis was performed using Stata (version 15.1).

METHODS

For binary outcomes, odds ratios with corresponding 95% confidence intervals were reported. Obstetric anal sphincter injury grades were ranked from the best clinical outcome to the worst clinical outcome. The percentage chance of each grade taking each rank with regards to outcome was calculated. Study quality and risk of bias was assessed using the relevant tool from the Joanna Briggs Institute.

RESULTS

Of the 696 studies identified, 10 were eligible for inclusion and were included in the network meta-analysis (n=2467 women). The mean incidence of anal incontinence among those with 3a tears was 22.4% (range, 6.1%-51.2%), 24.9% (range, 6.9%-46.7%) among those with 3b tears, 26.8% (range, 0%-55.6%) among those with 3c tears, and 28.6% (0%-71.4%) among those with fourth-degree tears. Anal incontinence incidence was found to be significantly higher among those with 3c (odds ratio, 1.79; 95% confidence interval, 1.09-2.94) and fourth-degree tears (odds ratio, 2.37; 95% confidence interval, 1.40-4.02) than among those with 3a tears. In addition, anal incontinence incidence was significantly higher among those with fourth-degree tears (odds ratio, 1.89; 95% confidence interval, 1.10-3.22) than among those with 3b tears. Those with 3a tears had the highest probability of having the best clinical outcome; those with 3b; second-, 3c; third- and fourth-degree tears had the highest probability of having the worst clinical outcome. Overall, all studies had a high or unclear risk of bias across 1 or more assessed element.

CONCLUSION

This was a network meta-analysis comparing the incidence of anal incontinence among those with different grades of obstetric anal sphincter injury. Increasing tear-grade severity is associated with worse clinical outcomes. This study provides useful, clinically applicable information that can assist clinicians in the counseling of women following an obstetric anal sphincter injury. In addition, it highlights the importance of accurately diagnosing the obstetric anal sphincter injury grade and subsequently performing the appropriate repair.

Regional and clinical guidelines for prevention and care of obstetric anal sphincter injuries - A critical frame analysis

OBJECTIVE

Policy documents govern how the prevention and care of obstetric anal sphincter injuries (OASIS) are implemented. Thus, in the absence of Swedish national guidelines on OASIS, differing views may be visible in the regional and local policy documents. Therefore, we aimed to analyse regional and local policies, guidelines, and care programs on the prevention of OASIS and care for OASIS-affected women in a Swedish context by applying a critical frame analysis inspired by Verloo.

DESIGN AND SETTING

A cross-sectional study of existing policy documents from Swedish healthcare regions was performed. The documents were analysed using Verloo's critical frame analysis.

FINDINGS

We found that OASIS was framed as a preventable problem addressed by skilled protective manoeuvres of the healthcare staff. Education, communication, and teamwork were three frames of crucial solutions to minimise the prevalence of OASIS. However, complicating power dimensions between professional groups and between professionals and birthing women were identified. Furthermore, several discursive struggles were found, predominantly regarding the scientific evidence for the suggested prevention and care.

CONCLUSION

The policy documents emphasised that OASIS is preventable, and improved education, communication, and teamwork could diminish the OASIS prevalence. Nevertheless, power dimensions and discursive struggles may challenge the preventive efforts. Furthermore, each Swedish region has the sovereignty to develop its policies, which was reflected in our findings and may imply inequities in care provision. Thus, there is an urgent need to develop comprehensive national high-quality guidelines of high quality for OASIS prevention and care so that all women giving birth have access to equal care and treatment in Sweden.

Effects of different techniques during the second stage of labour on reducing perineal laceration: An overview of systematic reviews

AIM AND OBJECTIVE

To summarize the evidence on the effects of different techniques during the second stage of labour on reducing perineal laceration depending on available systematic reviews to provide optimal evidence for decision-making.

BACKGROUND

Preventing perineal laceration has been considered an important part of improving women's health. Various techniques have been used to prevent perineal laceration during the second stage of labour. However, systematic reviews evaluating the effects of different techniques on reducing perineal laceration show inconsistent results.

DESIGN

Overview of systematic reviews.

METHODS

Five English and four Chinese databases were systematically searched for relevant systematic reviews and meta-analyses published between 1 January 2016 and 31 August 2021. The quality of the included reviews was assessed by the AMSTAR 2 tool. A narrative synthesis was conducted to report the results of moderate-to-high quality systematic reviews. The overview was reported according to the PRISMA statement.

RESULTS

Eighteen reviews were included, of which four reviews had moderate-to-high methodological quality. Perineal massage and warm compresses significantly decreased the incidence of third- or fourth-degree perineal laceration (moderate-quality evidence). Hands-off technique had no impact on perineal laceration (low-to-moderate quality evidence). Ritgen's manoeuvre could reduce the incidence of first-degree perineal laceration but increase the incidence of second-degree perineal laceration (very low-quality evidence). Spontaneous pushing (low-quality evidence) and delayed pushing (moderate-quality evidence) had no impact on the incidence of third- or fourth-degree perineal laceration. Upright positions did not increase the risk of third- or fourth-degree perineal laceration (very low- to low-quality evidence) but increased the risk of second-degree perineal laceration for women without epidural analgesia (low-quality evidence).

CONCLUSIONS

Perineal massage and warm compresses could be the better choice for preventing perineal laceration in the second stage of labour.

RELEVANCE TO CLINICAL PRACTICE

Midwives and obstetricians could use perineal massage and warm compresses to prevent perineal laceration and should consider women's preferences and experience with perineal techniques.

Is there still an indication for episiotomy? Results from a French national database analysis

OBJECTIVE

To assess the link between mediolateral episiotomy and the occurrence of obstetrical anal sphincter injury (OASIS).

METHODS

Data were collected from the national database (PMSI; Programme de Médicalisation des Systèmes d'Information). Women between 18 and 50 years old, undergoing a vaginal delivery in France in 2018 were included. The main outcome was factors associated with a higher adjusted OASIS rate after a vaginal delivery.

RESULTS

Of 623 003 women with a vaginal delivery, 239 949 were primiparous (38.5%), 62 310 experienced mediolateral episiotomy (10.0%) and 7077 had a third- or fourth-degree perineal tear (1.14%). Risk factors for OASIS were primiparity (adjusted odds ratio [OR] 2.97), shoulder dystocia (aOR 2.57), instrumental delivery (aOR 2.81), gestational diabetes (aOR 1.20), and post-term delivery (aOR 1.53). Mediolateral episiotomy increased the occurrence of OASIS for women without an instrumental delivery, either for parous (OR 1.32, 95% confidence interval [CI] 1.07-1.62) or primiparous (OR 1.26, 95% CI 1.13-1.39) women. In contrast, episiotomy among primiparous women with episiotomy and a vacuum or forceps delivery significantly decreased the risk for OASIS (OR 0.62, 95% CI 0.56-0.67).

CONCLUSIONS

The practice of routine episiotomy should be discouraged. Selective mediolateral episiotomy should be considered with extreme caution and mainly for primiparous women during instrumental vaginal delivery. Further randomized trial may confirm such results.

Combined 3D Endoanal Ultrasound and Transperineal Ultrasound Improves the Detection of Anal Sphincter Defects

INTRODUCTION

Anal sphincter injury, mainly due to obstetric or iatrogenic etiology, is the most common cause of fecal incontinence (FI). Three-dimensional endoanal ultrasound (3D EAUS) is used for assessment of the integrity and the degree of anal muscle injury. However, 3D EAUS accuracy may be hampered by regional acoustic effects, such as intravaginal air. Therefore, our aim was to examine whether a combination of transperineal ultrasound (TPUS) and 3D EAUS would improve the accuracy of detection of anal sphincter injury.

METHODS

We prospectively performed 3D EAUS followed by TPUS in every patient evaluated for FI in our clinic between January 2020 and January 2021. The diagnosis of anal muscle defects was assessed in each ultrasound technique by two experienced observers that were blinded to each other's assessments. Interobserver agreement for the results of the 3D EAUS and the TPUS exams was examined. A final diagnosis of anal sphincter defect was based on the results of both ultrasound methods. Discordant results were re-analyzed by the two ultrasonographers for a final consensus on the presence or absence of defects.

RESULTS

A total of 108 patients underwent ultrasonographic assessment due to FI (mean age 69 ± 13). Interobserver agreement for the diagnosis of tear on EAUS and TPUS was high (83%) with Cohen's kappa of 0.62. EAUS confirmed anal muscle defects in 56 patients (52%), while TPUS confirmed them in 62 patients (57%). The final consensus agreed on the diagnosis of 63 (58%) muscular defects and 45 (42%) normal exams. The Cohen's kappa coefficient of agreement between the results of the 3D EAUS and the final consensus was 0.63.

CONCLUSIONS

The combination of 3D EAUS and TPUS improved the detection of anal muscular defects. The application of both techniques for the assessment of the anal integrity should be considered in every patient going through ultrasonographic assessment for anal muscular injury.

Negotiating the ambiguity of an (in)authentic working life: a grounded theory study into severe perineal trauma

BACKGROUND

In Sweden, persistent physical and psychological health problems occur in about three in ten women who sustain severe perineal trauma (SPT) during childbirth. As most Swedish women work outside the home, the question of if and how SPT-related morbidity influences working life needs exploration. This study aims to qualitatively explore how women with persistent SPT-related morbidities experience and conceptualise their problems concerning working life. Further, we theorise the findings by applying Simone de Beauvoir's feminist framework of immanence and transcendence as well as authentic and inauthentic life.

METHODS

Ten interviews with women recruited via a Swedish social media community for perineal trauma were analysed according to Charmaz's constructivist approach to grounded theory.

RESULTS

The theoretical model and related core category 'Negotiating the ambiguity of an (in)authentic working life' reflected the women's negotiations of immanence as 'the silent covert object' versus transcendence as the 'the resourceful overt subject'. The model also mirrored the conflict of (in)authenticity in working life. An inauthentic working life was experienced when women were denied their subjectivity at work or constructed themselves as subjects in denial of their SPT. On the other hand, women who acknowledged their SPT and were constructed as subjects by 'others' achieved an authentic working life despite SPT.

CONCLUSIONS

The conflicting gendered process of 'the silent covert object' versus 'the resourceful overt subject' problematised women's vulnerability at work. Aspects that enable subjectification and transcendence are essential for policymakers, employers, healthcare services, and society to eradicate the taboo of SPT and create a working environment characterised by understanding, support, and flexibility. Further, access to adequate care, sick leave, and occupational rehabilitation are essential. Such measures support transcendence towards an authentic working life and, consequently, a more gender-equal working environment that does not deprive women of career opportunities due to a physical ailment.

Risk factors accounting for anal incontinence during the first year after vaginal delivery-A case control study in China

Introduction and hypothesis

Anal incontinence (AI) is a prevalent postpartum disorder. This study aims to investigate and quantify the risk factors for AI in the Chinese population during the first year following vaginal delivery.

Methods

The case control study was conducted at Peking University Third Hospital, including all women who delivered vaginally between January 1, 2014, and June 30, 2018. Participants were followed up by telephone interviews 1 year after delivery. AI was defined as the involuntary loss of flatus or feces using a retrospective Jorge and Wexner score above 0. Clinical data were retrieved from the medical record system. Univariate and multivariate analyses were applied to identify potential risk factors accounting for AI. Based on the logistic regression model, a nomogram was constructed to predict the probability of AI postpartum. Restricted cubic spline was utilized to explore potential non-linear relationships between birth weight and AI postpartum.

Results

Among the 140 AI and 421 none AI cases, we observed antepartum factors like every 100 g of birth weight gain (OR 1.39, 95% CI 1.30-1.49), while intrapartum factors like forceps-assisted vaginal delivery (OR 7.11, 95% CI 2.60-19.45), midline episiotomy (OR 13.11, 95% CI 1.71-100.89), second-degree perineal tear (OR 6.51, 95% CI 1.16-36.68), and third to fourth-degree perineal tear were independent risk factors for postpartum AI. Significantly, infant weighing over 3,400 g at birth increased the risk of AI postpartum. Based on logistic regression model, we constructed a nomogram to estimate the risk of AI 1 year after vaginal delivery.

Conclusion

Our findings indicated that during the first year following vaginal delivery, infant with birth weight of 3,400 g or more, forceps-assisted vaginal delivery, midline episiotomy, and second to fourth-degree perineal tear increased the risk of AI. As a result, it is essential to limit the routine use of forceps and midline episiotomy and to monitor fetal weight during prenatal care.

The Effect of Tissue Stromal Vascular Fraction as Compared to Cellular Stromal Vascular Fraction to Treat Anal Sphincter Incontinence

BACKGROUND

The long-term prognosis of current treatments for anal sphincter incontinence (ASI) is poor. Here, we explored the efficacy of tissue adipose stromal vascular fraction SVF (tSVF) on ASI and compared it to that of cellular SVF (cSVF). We then investigated possible mechanisms.

METHODS

Rat cSVF and tSVF were isolated and labeled with DIL. One day after modeling, three groups received phosphate-buffered saline (PBS), cSVF, tSVF, respectively. The control group received nil modeling nor any treatments. The effect was assessed by function test for anal pressure and electromyography, and staining for fiber content, proliferation and differentiation at day 5 and day 10.

RESULTS

cSVF injection resulted in faster healing than tSVF. The cSVF group showed significant improvement on anal pressure on day 10. For the electromyography test, cSVF showed significant improvement for the frequencies on day 10, and for the peak values on both time points, while tSVF showed significant improvement for the peak values on day 10. The two SVF both alleviated fibrosis. Immunofluorescence tracing identified differentiation of some injected cells towards myosatellite cells and smooth muscle cells in both SVF groups. For all the tests, the tSVF group tends to have similar or lower effects than the cSVF group with no significant difference.

CONCLUSION

cSVF and tSVF are both safe and effective in treating ASI, while the effect of cSVF is slighter higher than tSVF.

Planned mode of birth after previous cesarean section and risk of undergoing pelvic floor surgery: A Scottish population-based record linkage cohort study

BACKGROUND

The global rise in cesarean sections has led to increasing numbers of pregnant women with a history of previous cesarean section. Policy in many high-income settings supports offering these women a choice between planned elective repeat cesarean section (ERCS) or planned vaginal birth after previous cesarean (VBAC), in the absence of contraindications to VBAC. Despite the potential for this choice to affect women's subsequent risk of experiencing pelvic floor disorders, evidence on the associated effects to fully counsel women is lacking. This study investigated the association between planned mode of birth after previous cesarean section and the woman's subsequent risk of undergoing pelvic floor surgery.

METHODS AND FINDINGS

A population-based cohort study of 47,414 singleton term births in Scotland between 1983 to 1996 to women with 1 or more previous cesarean sections was conducted using linked Scottish national routine datasets. Cox regression was used to investigate the association between planned as well as actual mode of birth and women's subsequent risk of having any pelvic floor surgery and specific types of pelvic floor surgery adjusted for sociodemographic, maternal medical, and obstetric-related factors. Over a median of 22.1 years of follow-up, 1,159 (2.44%) of the study population had pelvic floor surgery. The crude incidence rate of any pelvic floor surgery per 1,000 person-years was 1.35, 95% confidence interval (CI) 1.27 to 1.43 in the overall study population, 1.75, 95% CI 1.64 to 1.86 in the planned VBAC group and 0.66, 95% CI 0.57 to 0.75 in the ERCS group. Planned VBAC compared to ERCS was associated with a greater than 2-fold increased risk of the woman undergoing any pelvic floor surgery (adjusted hazard ratio [aHR] 2.38, 95% CI 2.03 to 2.80, p < 0.001) and a 2- to 3-fold increased risk of the woman having surgery for pelvic organ prolapse or urinary incontinence (aHR 3.17, 95% CI 2.47 to 4.09, p < 0.001 and aHR 2.26, 95% CI 1.79 to 2.84, p < 0.001, respectively). Analysis by actual mode of birth showed these increased risks were only apparent in the women who actually had a VBAC, with the women who needed an in-labor non-elective repeat cesarean section having a comparable risk of pelvic floor surgery to those who had an ERCS. The main limitation of this study is the potential for misclassification bias.

CONCLUSIONS

This study suggests that among women with previous cesarean section giving birth to a singleton at term, planned VBAC compared to ERCS is associated with an increased risk of the woman subsequently undergoing pelvic floor surgery including surgery for pelvic organ prolapse and urinary incontinence. However, these risks appear to be only apparent in women who actually give birth vaginally as planned, highlighting the role of vaginal birth rather than labor in pelvic floor dysfunction requiring surgery. The findings provide useful additional information to counsel women with previous cesarean section about the risks and benefits associated with their future birth choices.

Anal endosonographic assessment of the accuracy of clinical diagnosis of obstetric anal sphincter injury

INTRODUCTION AND HYPOTHESIS

Obstetric anal sphincter injuries (OASIS) are a common cause of maternal morbidity with an overall incidence in the UK of 2.9% (range 0-8%). They can cause a range of physical symptoms and psychological distress. This study aims to assess the accuracy of clinical diagnosis of OASIS using endoanal ultrasound (EAUS) and the correlation between confirmed injury and change to anorectal physiology squeeze pressure and the incidence of bowel symptoms.

METHODS AND MATERIALS

Retrospective study of prospectively collected data from 1135 women who attended the Third- and Fourth-Degree Tears Clinic at our institution, 12 weeks post-delivery, between June 2008 and October 2019.

RESULTS

OASIS was confirmed in 876 (78.8%) women and 236 (21.3%) had no injury. Of the women who underwent anorectal physiology, 45.6% had a mean maximal resting pressure below the normal range and 68.8% had a mean incremental squeeze pressure below normal. Women with confirmed OASIS had significantly lower pressures (p < 0.001) than those without a confirmed sphincter injury. Three hundred ninety-three (34.8%) women reported bowel symptoms, with those with endosonographic evidence of injury more likely to develop flatus incontinence.

CONCLUSION

Of the women in this study with a suspected OASIS, 21.2% could be reassured that they did not have an injury. This information is useful for women considering future mode of delivery. Those with confirmed injury are more likely to complain of flatus incontinence and have reduced anal sphincter pressures.

The Effect of Mesenchymal Stem Cells, Adipose Tissue Derived Stem Cells, and Cellular Stromal Vascular Fraction on the Repair of Acute Anal Sphincter Injury in Rats

Background: Anal sphincter incontinence (ASI) can cause a serious decline in the quality of life and can cause a socioeconomic burden. Studies have shown that bone marrow mesenchymal stem cells (MSC) have significant therapeutic effects on ASI, but the cost and risk of MSC harvest limit their further application. In contrast, adipose tissue derived stem cells (ADSC) and cellular stromal vascular fraction (CSVF) as stem cell sources have multipotency and the advantage of easy harvest. Objective: Here we aim to investigate the effects of ADSC and CSVF on treating ASI and compare them to that of bone marrow MSC. Methods: Bone marrow MSC, ADSC, and CSVF were obtained and labeled with green fluorescent protein (GFP), and CSVF was labeled with DIL. Sprague Dawley (SD) rats were divided into 5 groups. Four groups were injected with 0.2 mL phosphate buffer saline (PBS), 1 × 107/0.2 mL of MSC, ADSC, or CSVF, respectively, after model establishment. The control group received no treatment. The repair was assessed by anal functional tests and immunostaining on day 5 and day 10 after injection. Results: MSC, ADSC, and CSVF significantly promoted tissue repair and the recovery of muscle contraction and electromyographic activity in ASI. The generation of myosatellite cells by injected MSC, ADSC, and CSVF was found in the wounded area. On day 5, CSVF showed highest therapeutic effect, while on day 10, MSC and ADSC showed higher therapeutic effects than CSVF. When comparing the effects of MSC and ADSC, ADSC was slightly better than MSC in the indexes of anal pressure, etc. Conclusion: ADSC and CVSF are alternative stem cell sources for ASI repair.

Delivery mode and severe maternal and neonatal morbidity among singleton term breech births: A population-based cohort study

OBJECTIVE

The aim of this study was to examine the association between delivery mode and severe maternal and neonatal morbidity in singleton term breech births.

STUDY DESIGN

This nationwide population-based cohort study includes 41 319 singleton term and post-term breech births (37 + 0-42 + 6 gestational weeks) in Sweden from 1998 to 2016. Data was retrieved from the Swedish Medical Birth Register. The primary outcomes were two separate composite outcomes, maternal and neonatal severe morbidity. Secondary outcomes were separate severe maternal and neonatal morbidity outcomes. Hospitalization and out-patient visits during childhood were also analyzed in ages 0-5 years. Logistic regression was used to estimate unadjusted and adjusted odds ratios (aOR) with 95% confidence intervals (CI) of severe maternal and neonatal morbidity in women with vaginal breech birth or intrapartum cesarean section. Women with a prelabor breech cesarean section was used as the reference group.

RESULTS

No difference between vaginal delivery and prelabor cesarean section was seen regarding maternal morbidity. Intrapartum cesarean section was associated with elevated odds for maternal morbidity (aOR 1.27, 95% CI 1.10-1.47) compared with prelabor cesarean section. A similar result was observed for vaginal delivery and intrapartum cesarean section combined (aOR 1.29, 95% CI 1.11-1.50). Vaginal delivery was associated with higher odds for composite neonatal morbidity (aOR 1.85, CI 1.54-2.21) and most separate outcomes, as well as increased number of hospital nights and out-patient visits during first year of life, compared with prelabor cesarean section.

CONCLUSIONS

Prelabor cesarean section in breech births improved short-term neonatal health without increasing risks for severe maternal short-term complications.

Mediolateral/lateral episiotomy with operative vaginal delivery and the risk reduction of obstetric anal sphincter injury (OASI): A systematic review and meta-analysis

Introduction and hypothesis

OASI complicates approximately 6% of vaginal deliveries. This risk is increased with operative vaginal deliveries (OVDs), particularly forceps. However, there is conflicting evidence supporting the use of mediolateral/lateral episiotomy (MLE/LE) with OVD. The aim of this study was to assess whether MLE/LE affects the incidence of OASI in OVD.

Methods

Electronic searches were performed in OVID Medline, Embase and the Cochrane Library. Randomised and non-randomised observational studies investigating the risk of OASI in OVD with/without MLE/LE were eligible for inclusion. Pooled odds ratios (OR) were calculated using Revman 5.3. Risk of bias of was assessed using the Cochrane RoB2 and ROBINS-I tool. The quality of evidence was assessed using Grading of Recommendations Assessment, Development and Evaluation (GRADE).

Results

A total of 703,977 patients from 31 studies were pooled for meta-analysis. MLE/LE significantly reduced the rate of OASI in OVD (OR 0.60 [95% CI 0.42–0.84]). On sub-group analysis, MLE/LE significantly reduced the rate in nulliparous ventouse (OR 0.51 [95% CI 0.42–0.84]) and forceps deliveries (OR 0.32 [95% CI 0.29–0.61]). In multiparous women, although the incidence of OASI was lower when a ventouse or forceps delivery was performed with an MLE/LE, this was not statistically significant. Heterogeneity remained significant across all studies (I² > 50). The quality of all evidence was downgraded to “very low” because of the critical risk of bias across many studies.

Conclusions

MLE/LE may reduce the incidence of OASI in OVDs, particularly in nulliparous ventouse or forceps deliveries. This information will be useful in aiding clinical decision-making and counselling in the antenatal period and during labour.

Supplementary Information

The online version contains supplementary material available at 10.1007/s00192-022-05145-1.

Is there a role for transperineal ultrasound imaging of the anal sphincter immediately after primary repair of third degree tears?

OBJECTIVE

When obstetric anal sphincter injuries are identified, it is crucial that the defects are repaired appropriately to achieve a better outcome. Although the presence of an intact anal sphincter is not the sole mechanism for maintaining continence, and not all women with an anal sphincter defect are symptomatic, there is an association between sphincter defects and anal incontinence. Our aim was to evaluate whether transperineal ultrasound (TPUS) is useful in assessing anal sphincter integrity immediately following primary repair of obstetric anal sphincter injuries (OASIs).

STUDY DESIGN

This is a prospective observational study of women who sustained OASIs during their first vaginal delivery. Three dimensional (3D) TPUS was performed immediately after repair of OASIs to identify anal sphincter defects. A repeat TPUS was performed 12 weeks following repair.

RESULTS

21 women sustained OASIs of whom 20 (95%) attended follow up. Eight (40%) had a grade 3a tear and 12 (60%) a 3b tear. 8/20 (40%) women had residual external anal sphincter (EAS) defects identified by TPUS immediately after repair. Of these eight defects, six (75%) persisted at 12 weeks postpartum. No new defects were seen at follow up among the twelve women in whom no defect was seen immediately following the repair. Six residual EAS defects were found at 12 weeks postpartum. An EAS defect at 12 weeks postpartum was associated with anal incontinence (p = 0.04). Women with 3b tears were more likely to have anal incontinence (AI) and residual sonographic EAS defects when compared with 3a tears but this was not statistically significant.

CONCLUSIONS

Women who had no TPUS defect detected immediately following primary repair of OASIs, remained as such at 12 weeks postpartum. Of those in whom a defect was seen immediately after repair, it persisted in 75% of cases at 12 weeks. We believe that the value of TPUS immediately after repair appears to be limited and would need to be defined if it were to be considered for routine practice. Further research on its role immediately after repair of major tears (Grade 3C/4) is needed. In addition, performing ultrasound would require widespread training of obstetricians to develop expertise. This highlights the importance of adequate training of obstetricians in OASI repair.

Modifiable and non-modifiable risk factors for obstetric anal sphincter injury in a Norwegian Region: a case-control study

Background

Obstetric anal sphincter injury (OASI) is a common and severe complication of vaginal delivery and may have short- and long-term consequences, including anal incontinence, sexual dysfunction and reduced quality of life. The rate of OASI varies substantially between studies and national birth statistics, and a recent meta-analysis concluded that there is a need to identify unrecognized risk factors. Our aim was therefore to explore both potential modifiable and non-modifiable risk factors for OASI.

Methods

We performed a case–control study in a single center maternity clinic in South-Eastern Norway. Data were extracted retrospectively from an institutional birth registry. The main outcome measure was the occurrence of the woman’s first-time 3^rd or 4^th degree perineal lesion (OASI) following singleton vaginal birth after 30 weeks’ gestation. For each woman with OASI the first subsequent vaginal singleton delivery matched for parity was elected as control. The study population included 421 women with OASI and 421 matched controls who gave birth during 1990–2002. Potential risk factors for OASI were assessed by conditional logistic regression analyses.

Results

The mean incidence of OASI was 3.4% of vaginal deliveries, but it increased from 1.9% to 5.8% during the study period. In the final multivariate regression model, higher maternal age and birthweight for primiparous women, and higher birthweight for the multiparous women, were the only non-modifiable variables associated with OASI. Amniotomy was the strongest modifiable risk factor for OASI in both primi- (odds ratio [OR] 4.84; 95% confidence interval [CI] 2.60–9.02) and multiparous (OR 3.76; 95% CI 1.45–9.76) women, followed by augmentation with oxytocin (primiparous: OR 1.63; 95% CI 1.08–2.46, multiparous: OR 3.70; 95% CI 1.79–7.67). Vacuum extraction and forceps delivery were only significant risk factors in primiparous women (vacuum: OR 1.91; 95% CI 1.03–3.57, forceps: OR 2.37; 95% CI 1.14–4.92), and episiotomy in multiparous women (OR 2.64; 95% CI 1.36–5.14).

Conclusions

Amniotomy may be an unrecognized independent modifiable risk factor for OASI and should be further investigated for its potential role in preventive strategies.

Women's experiences of surviving severe obstetric complications: a qualitative inquiry in southern Ghana

Women who survive severe obstetric complications (SOC) have health and well-being issues even up to 1 year postpartum and have challenges in their quality-of-life (QoL). However, little is known about their predicaments. This study aimed to describe the impact of severe obstetric complications on women’s QoL and well-being after surviving severe obstetric complications. Using the WHO standards for near-miss, twelve (12) women who survived severe obstetric complications were recruited between January and March 2019. The study adopted a qualitative approach with an exploratory descriptive design to explore the experiences of women who survived SOC in Southern Ghana. The participants were purposively sampled and were interviewed face to face in their homes and healthcare facility after discharge from the Hospital. Recorded interviews were transcribed and analyzed. Two (2) major themes and nine (9) sub-themes emerged. The findings revealed that women who suffered SOC are unable to perform functional activities, have financial constraints, residual hypertension, signs and symptoms of anaemia, pain, and mostly have difficulty in sleeping due to fear of death when they fall asleep. Anxiety, sadness, and emotional trauma was a common phenomenon. The study findings offer insights and directions on measures to improve the care and QoL of women who have survived severe obstetric complications in Ghana.

Risk of obstetric anal sphincter injury among women who birth vaginally after a prior caesarean section: A state-wide cohort study

OBJECTIVE

Vaginal birth after caesarean (VBAC) has been suggested to be associated with an increased risk of obstetric anal sphincter injury (compared with primiparous women who birth vaginally). However, prior studies have been small, or used outdated methodology. We set out to validate whether the risk of obstetric anal sphincter injury among women having their first VBAC is greater than that among primiparous women having a vaginal birth.

DESIGN

State-wide retrospective cohort study.

SETTING

Victoria, Australia.

POPULATION

All births (455,000) between 2009-2014.

METHODS

The risk of severe perineal injury between first vaginal birth and first vaginal birth after previous caesarean section was compared, after adjustment for potential confounding variables. Covariates were examined using logistic regression for categorical data and Wilcoxon rank-sum test for continuous data. Missing data were handled using multiple imputation; the analysis was performed using regression adjustment and Stata v16 multiple imputation and teffects suites.

RESULTS

Women having a VBAC (n=5,429) were significantly more likely than primiparous women (n=123,353) to sustain a 3^rd or 4^th degree tear during vaginal birth (7.1 vs 5.7%, p<0.001). After adjustment for mode of birth, body mass index, maternal age, infant birthweight, episiotomy and epidural, there was a 21% increased risk of severe perineal injury (relative risk 1.21 (95%CI 1.07 - 1.38)).

CONCLUSIONS

Women having their first vaginal birth after caesarean section have a significant increased risk of sustaining a 3^rd or 4^th degree tear, compared with primiparous women having a vaginal birth. Patient counselling and professional guidelines should reflect this increased risk.

Understanding the physiology of human defaecation and disorders of continence and evacuation

The act of defaecation, although a ubiquitous human experience, requires the coordinated actions of the anorectum and colon, pelvic floor musculature, and the enteric, peripheral and central nervous systems. Defaecation is best appreciated through the description of four phases, which are, temporally and physiologically, reasonably discrete. However, given the complexity of this process, it is unsurprising that disorders of defaecation are both common and problematic; almost everyone will experience constipation at some time in their life and many will develop faecal incontinence. A detailed understanding of the normal physiology of defaecation and continence is critical to inform management of disorders of defaecation. During the past decade, there have been major advances in the investigative tools used to assess colonic and anorectal function. This Review details the current understanding of defaecation and continence. This includes an overview of the relevant anatomy and physiology, a description of the four phases of defaecation, and factors influencing defaecation (demographics, stool frequency/consistency, psychobehavioural factors, posture, circadian rhythm, dietary intake and medications). A summary of the known pathophysiology of defaecation disorders including constipation, faecal incontinence and irritable bowel syndrome is also included, as well as considerations for further research in this field.

Obstetrical Soft Tissue Trauma during Spontaneous Vaginal Birth in the Romanian Adolescent Population-Multicentric Comparative Study with Adult Population

Romania is a country with high rates of adolescent births, associating scarce comprehensive obstetrical management with this specific population. This research aims to assess soft tissue trauma after vaginal birth in teenage mothers compared to their adult counterparts. A retrospective case-control study was conducted for one year in two hospitals. All vaginal deliveries were considered; the age cut-off value was considered at 20 years old for case and control groups. Lacerations were divided into three subgroups, considering the involved anatomical region; group I: labial and periurethral lacerations, group II: vaginal and perineal lacerations, and group III: cervical lacerations. There were 1498 women included in the study: 298 young mothers and 1200 adults. Teenagers were more likely to have an episiotomy during vaginal delivery compared to adult women: 56% versus 26.7% (p = 0.00, Pearson Chi-square) and a 1.89 times increased risk for developing additional group II lacerations: p = 0.01, Pearson Chi-square test with Bonferroni correction: OR = 1.89, 95% CI: 1.18–3.02. Group II lacerations were the most frequent type of birth trauma in both study groups. Fetal weight ≥4000 g was associated with a two times higher risk for vaginal and perineal lacerations when age criterion was not considered (OR = 1.98, 95% CI: 1.13–3.47, p = 0.01). The incidence of group I and II lacerations increased with age: from 0% and 9.1% between 10 and 14 years old to 6% and 26.2% between 18 and 19 years old. All groups of lacerations were more often identified in the case group, compared to the adult group. Fetal macrosomia and spontaneously ruptured membranes at admission could not be documented as risk factors for obstetrical injury in young mothers. Episiotomy performed in teenagers was not a protective procedure for group II lacerations.

Cell Therapy for Anal Sphincter Incontinence: Where Do We Stand?

Anal sphincter incontinence is a chronic disease, which dramatically impairs quality of life and induces high costs for the society. Surgery, considered as the best curative option, shows a disappointing success rate. Stem/progenitor cell therapy is pledging, for anal sphincter incontinence, a substitute to surgery with higher efficacy. However, the published literature is disparate. Our aim was to perform a review on the development of cell therapy for anal sphincter incontinence with critical analyses of its pitfalls. Animal models for anal sphincter incontinence were varied and tried to reproduce distinct clinical situations (acute injury or healed injury with or without surgical reconstruction) but were limited by anatomical considerations. Cell preparations used for treatment, originated, in order of frequency, from skeletal muscle, bone marrow or fat tissue. The characterization of these preparations was often incomplete and stemness not always addressed. Despite a lack of understanding of sphincter healing processes and the exact mechanism of action of cell preparations, this treatment was evaluated in 83 incontinent patients, reporting encouraging results. However, further development is necessary to establish the correct indications, to determine the most-suited cell type, to standardize the cell preparation method and to validate the route and number of cell delivery.

Obstetric rectal laceration in the absence of an anal sphincter injury

Rectal laceration in the absence of concurrent anal sphincter injury at the time of parturition is not a frequently reported finding. This rarely encountered injury is also referred to as a buttonhole injury. It is a disruption of the vaginal and rectal tissue with resultant disruption of the anal epithelium in the setting of an intact external anal sphincter. A 30-year-old gravida 1 para 0 at 39 weeks presented for induction of labour due to chronic hypertension. During her labour course, she developed with superimposed preeclampsia with severe features and magnesium sulfate was initiated. She underwent a spontaneous vaginal delivery of an infant weighing 3840 g. Following delivery, stool was visualised in the vagina. A rectal examination revealed a rectovaginal defect separate from the second-degree perineal laceration, which extended proximally to the cervix. The anal sphincter was noted to be intact with good tone. Both defects were repaired, and she had an uncomplicated recovery.

Myogenic Cell Transplantation in Genetic and Acquired Diseases of Skeletal Muscle

This article will review myogenic cell transplantation for congenital and acquired diseases of skeletal muscle. There are already a number of excellent reviews on this topic, but they are mostly focused on a specific disease, muscular dystrophies and in particular Duchenne Muscular Dystrophy. There are also recent reviews on cell transplantation for inflammatory myopathies, volumetric muscle loss (VML) (this usually with biomaterials), sarcopenia and sphincter incontinence, mainly urinary but also fecal. We believe it would be useful at this stage, to compare the same strategy as adopted in all these different diseases, in order to outline similarities and differences in cell source, pre-clinical models, administration route, and outcome measures. This in turn may help to understand which common or disease-specific problems have so far limited clinical success of cell transplantation in this area, especially when compared to other fields, such as epithelial cell transplantation. We also hope that this may be useful to people outside the field to get a comprehensive view in a single review. As for any cell transplantation procedure, the choice between autologous and heterologous cells is dictated by a number of criteria, such as cell availability, possibility of in vitro expansion to reach the number required, need for genetic correction for many but not necessarily all muscular dystrophies, and immune reaction, mainly to a heterologous, even if HLA-matched cells and, to a minor extent, to the therapeutic gene product, a possible antigen for the patient. Finally, induced pluripotent stem cell derivatives, that have entered clinical experimentation for other diseases, may in the future offer a bank of immune-privileged cells, available for all patients and after a genetic correction for muscular dystrophies and other myopathies.

Musculoskeletal lower back load of accoucheurs during childbirth - A pilot and feasibility study

INTRODUCTION

Back problems represent one of the leading causes of accouchers' work-related musculoskeletal morbidities. The correct execution of birth-related maneuvers including manual perineal protection is crucial not only for the mother and child but also for obstetricians and midwives to reduce any strain on their musculoskeletal system. Therefore, the overall aim of this study was to test the feasibility of determining the effect of different accouchers' postures (standing and kneeling) on their musculoskeletal system.

METHODS

The biomechanical analysis is based on musculoskeletal simulations that included motion recordings of real deliveries as well as deliveries conducted on a birthing simulator. These simulations were then used to determine individual joints' loads.

RESULTS

In the kneeling posture, both a low intra-operator variability and a lower average maximum load of the lower back was observed. For the standing position the spine load was reduced by pivoting the elbow on the accouchers' thigh, which in turn was associated with a significantly greater load on the shoulder joint.

CONCLUSION

The study demonstrated the feasibility of our technique to assess joints loads. It also provided initial data indicating that a posture that reduces spinal flexion and tilt, achieved in this study by the kneeling, can significantly reduce the strain on the practitioner's musculoskeletal system.

The Role of Obesity on Urinary and Anal Incontinence in women: a review

Obesity is increasing worldwide with significant healthcare implications. We searched PubMed/MEDLINE, Embase and Cochrane Library for articles registered until June 2020 to explore the relationship between obesity, urinary (UI) and anal incontinence (AI). Obesity is associated with low-grade, systemic inflammation and pro-inflammatory cytokine release, producing reactive oxygen species and oxidative stress (1). This alters collagen metabolism and, in combination with increased intraabdominal pressure, contributes to UI development. Whereas in AI, stool consistency may be a factor. Weight loss can reduce UI and should be a management focus, however effect on AI is less clear. Keywords: Obesity, Urinary incontinence, Anal incontinence.

Women's experiences of the OASI Care Bundle; a package of care to reduce severe perineal trauma

INTRODUCTION AND HYPOTHESIS

Obstetric anal sphincter injury (OASI) is a severe form of perineal trauma that can occur during vaginal birth. Long-term morbidities include anal incontinence and psychosocial disorders. To reduce these injuries within England, Scotland and Wales, the OASI Care Bundle was introduced to 16 maternity units (January 2017-March 2018). The OASI Care Bundle comprises four elements: (1) antenatal information, (2) manual perineal protection, (3) medio-lateral episiotomy (when indicated) and 4) recognition and diagnosis of tears. As part of the project evaluation, a qualitative study was conducted to explore women's experiences of the OASI Care Bundle.

METHODS

Semi-structured interviews were conducted with women (n = 19) who received the OASI Care Bundle as part of their maternity care. This was to explore their experience of each element. A thematic analysis of the interview data was performed.

RESULTS

Three themes were identified: (1) memories of touch, whereby women reported that a 'hands-on' approach to perineal protection was a positive experience; (2) midwife as a supportive guide, where women reported that good communication facilitated a calm birth and post-birth diagnosis; (3) education: women need more information about perineal trauma.

CONCLUSION

This study contributes to the literature through its exploration of women's experiences of perineal protection techniques and diagnosis of perineal trauma. Interviewed women indicated that they did not experience any of the care bundle elements as an intrusion of their physical integrity. Additionally, an urgent need was identified for more information about perineal trauma in terms of risk, prevention and recovery.

Symptoms of fecal incontinence two decades after no, one, or two obstetrical anal sphincter injuries

BACKGROUND

The long-term effects of 1 or 2 consecutive obstetrical anal sphincter injuries on bowel continence are still inadequately investigated, and published results remain contradictory.

OBJECTIVE

This study aimed to present detailed descriptive measures of the current bowel incontinence 20 years after the first birth in women who had 2 vaginal deliveries with and without sphincter injuries.

STUDY DESIGN

Birth register data were used prospectively and linked to information from a questionnaire survey about current symptoms. Women with 2 singleton vaginal births, from 1992 to 1998, and no further births were retrieved and surveyed by the Swedish Medical Birth Register and Statistics Sweden in 2015. A simple random sample of 11,000 women was drawn from a source cohort of 64,687 women. The cumulative effect was studied in all women with a repeat sphincter injury from 1987 to 2000. Postal and web-based questionnaires were used. The study population consisted of 6760 women with no sphincter injury, 357 with 1 sphincter injury, and 324 women with 2 sphincter injuries. Women with 2 deliveries without sphincter injuries aged 40 to 60 years as reference, were compared with those of women that sustained 1 or 2 consecutive sphincter injuries. Here, third- and fourth-degree perineal tears were presented as 1 group. Fecal incontinence was defined as current involuntary leakage of solid or liquid stool, with and without concomitant leakage of gas. The Fisher exact test and the Mann-Whitney U test were used to compare the results of the 2 groups. The trend was analyzed using the Mantel-Haenszel statistics. Logistic regression models obtained the estimated age-related probability of fecal incontinence components.

RESULTS

The risk of sphincter injury at first delivery was 3.9%, and the risk of a repeat sphincter injury was 10.0% (odds ratio, 2.70; 95% confidence interval, 1.80-4.07). The overall prevalence of fecal incontinence in women without sphincter injuries was 11.7%, which doubled to 23.8% (odds ratio, 2.27; 95% confidence interval, 1.75-2.94) in those with 1 sphincter injury and more than tripled to 36.1% (odds ratio, 3.97; 95% confidence interval, 3.11-5.07) after 2 sphincter injuries (trend P<.0001). The proportion of women with severe fecal incontinence increased 3-fold and 5-fold from 1.8% after no obstetrical anal sphincter injury to 5.4% (95% confidence interval, 3.3-8.2) and 9.0% (95% confidence interval, 6.1-12.6) after 1 or 2 obstetrical anal sphincter injuries, respectively (trend P<.0001). In women without sphincter injuries, the estimated probability of fecal incontinence increased from 7.0% at the age of 40 years to 19.8% at the age of 60 years. In contrast, in women with 1 or 2 sphincter injuries, the estimated probability of fecal incontinence increased from 26.1% and 33.3%, respectively, at the age of 40 years to 36.8% and 48.8% at the age of 60 years. The prevalence of fecal incontinence increased after 52 years of age in women with 1 or 2 sphincter injuries. The dominant types of leakage in women with fecal incontinence were the combination of liquid stool and gas, and the triple combination consisting of solid and liquid stools and gas. The triple combination increased from 18.9% in those without sphincter injury to 28.2% in women with 2 injuries (trend P=.0204).

CONCLUSION

The risk of sustaining a repeat sphincter injury at the second delivery was almost tripled compared with the risk at the first delivery. Furthermore, 1 or 2 sphincter injuries brought severe long-term consequences for bowel continence. Accidental leakage of stool and gas increased with each sphincter injury, and the effect was proportionally cumulative. After the age of 52 years, the prevalence of fecal incontinence seemed to accelerate.

REAL CLINICAL PRACTICE OF POSTPARTUM ANAL INCONTINENCE TREATMENT IN RUSSI

Aim: To evaluate the medical care quality provided to patients with fecal incontinence in practice; to investigate the patient care effectiveness; to identify the problems the patient and the doctor are faced during the postpartum anal incontinence (AI) treatment.

Methods: A questionnaire for surgeons was created using Google forms. It includes 22 questions about medical characteristics of patients with AI, used diagnostic methods, and treatment results. The answers were analyzed and presented as histograms.

Results: Totally 134 (17.4%) questionnaires were completed from September to November 2020. Labor was the most common AI cause (74.4%). The median age was 20-40 years, 37% of patients was >40 years, 8% – >60 years. The most common complaints were incontinence (70%) and decreased life quality (72%). Rectovaginal fistulas were diagnosed in 28% of cases. The sphincter complex lesion size, age and anorectal manometry results determined the treatment strategy. Only 8.8% of surgeons suggested sacral neurostimulation in case of the other methods inefficiency. Up to 16.7% of patients were offered to create stoma as the final treatment method.

Discussion: Our study is the first major survey for proctologists and surgeons in Russia, assessing the medical care of patients with postpartum AI. The results indicate insufficient attention to this problem; it requires educational and organizational solutions. Regional or federal centers where obstetrician and surgeons can work cooperatively could be extremely helpful to provide appropriate medical care to these patients and to improve the treatment quality for women with postpartum AI.

Management of obstetric anal sphincter injury: Colorectal surgeons' perspectives in Australia and New Zealand

BACKGROUND

Obstetric anal sphincter injuries (OASIs) are a significant complication of vaginal delivery, and a leading cause of anal incontinence in women.

AIMS

The aims were to explore the management of OASIs in Australia and New Zealand (ANZ) by colorectal surgeons and how this compares with current recommendations and international experience, and to identify the deterrents to the provision of best-practice care among colorectal surgeons.

MATERIALS AND METHODS

Three hundred colorectal surgeons of the Colorectal Surgical Society of ANZ were mailed questionnaires. Areas of interest included: surgeon demographics; exposure to OASIs; understanding of current recommendations; and opinions regarding the importance of symptoms and assessment tools in OASIs.

RESULTS

There were 94 completed questionnaires (response rate 31.3%). Fifty-seven surgeons (60.6%) reported low exposure to OASIs during their fellowship training. Greater than 90% believed patients with grade three tears and above should have anal sphincter assessment. Sixty-six (70.2%) reported that they routinely review women who have had OASIs. However, 56.4% were unaware if their obstetrics department followed a standard protocol for OASIs. Surgeons practising in metropolitan centres reported higher rates of their obstetrics department following a protocol (P = 0.013), and greater access to investigative tools (P < 0.001), when compared to rural-based surgeons.

CONCLUSIONS

Most ANZ colorectal surgeons have had minimal training in OASI management. Colorectal surgeons are more commonly involved with OASI patients in the non-acute setting. Management protocols involving a multidisciplinary team of both colorectal surgeons and obstetricians should be clearly defined, and the gap between metropolitan and rural centres needs to be reviewed.

Exploring clinicians' perspectives on the 'Obstetric Anal Sphincter Injury Care Bundle' national quality improvement programme: a qualitative study

INTRODUCTION

Obstetric anal sphincter injuries (OASI) can have severe debilitating consequences to women and health systems. The OASI Care Bundle quality improvement programme was introduced in 16 maternity units across England, Scotland and Wales (January 2017 to March 2018) to address increasing OASI rates.

OBJECTIVES

To explore clinicians' (midwives' and obstetricians') perspectives of the OASI Care Bundle with respect to (1) acceptability, (2) feasibility, and (3) sustainability.

DESIGN

A qualitative exploratory study using focus groups methodology.

SETTING

A total of 16 focus groups were conducted in 16 maternity units in England, Scotland and Wales where the OASI Care Bundle was implemented. Focus groups took place approximately 3 months following initial implementation of the care bundle in each unit.

PARTICIPANTS

A total of 101 clinicians participated, with an average of six per focus group. Participants volunteered to take part and compromised of 37 obstetricians and 64 midwives (including eight students). The majority were female and the mean age was 36.5 years.

RESULTS

Four main themes emerged: 'Implementation strategies', 'Opportunities to use the OASI Care Bundle', 'Does current practice need to change?' and 'Perceptions of what women want'. Midwives were more likely than obstetricians to report themes alluding to 'what women want' and variations in intrapartum perineal protection techniques. Both professional groups reported similar views of other themes, in particular regarding the supporting clinical evidence. Gaps were identified in clinicians' knowledge and experience of intrapartum perineal management.

CONCLUSIONS

Adoption of the OASI Care Bundle was associated with a number of cognitive and interpersonal factors, such as personal values, interprofessional working and how the intervention was launched; which both facilitated and impeded adoption. The 'what women want' theme has implications for maternal autonomy and needs further exploration. Our findings can be used by similar initiatives to reduce perineal trauma both nationally and internationally.

TRIAL REGISTRATION NUMBER

ISCTRN 12143325; https://doi.org/10.1186/ISRCTN12143325.