Severe Perineal Tears Research Articles

Antenatal Anovaginal Distance, a Potential Indicator of Perineal Damage during Pregnancy.

Perineal injuries, including episiotomies and spontaneous tears, are common complications during childbirth, often leading to significant discomfort and prolonged recovery for women. This retrospective observational cohort study aimed to explore the relationship between antenatal anovaginal distance (AVD) and the incidence of perineal injuries in a cohort of pregnant women evaluated for pelvic floor health at 28 to 32 weeks of gestation. Conducted at the University Hospital of Padua over 18 months, the study included 416 women who underwent vaginal delivery at term. Based on AVD, the study participants were divided into two groups: AVD-N group, which included 252 patients with AVD ≥ 2 cm, and the AVD-R group, which included 164 with AVD < 2 cm. The results of the pelvic floor assessment and those related to childbirth were then examined in relation to AVD (reduced vs. normal). The study found that women with reduced AVD were more likely to experience perineal injuries. Specifically, the incidence of episiotomy and severe perineal tears (3rd and 4th degree) was significantly higher in the reduced AVD group (p < 0.05). Furthermore, a lower AVD was associated with increased perineal muscle hypertonicity and a higher likelihood of operative delivery with episiotomy. Logistic regression analysis confirmed that reduced AVD was an independent risk factor for perineal injuries, regardless of other maternal or neonatal characteristics. These results suggest that AVD measurement during pregnancy may help identify women at higher risk of perineal trauma, enabling more personalized obstetric care to mitigate these outcomes.

The Risk Factors of Postpartum Urinary Retention for Women by Vaginal Birth: A Systematic Review and Meta-Analysis.

Postpartum urinary retention is one of the most common complications in women during the immediate postpartum period. The objective was to systematically assess risk factors for postpartum urinary retention after vaginal delivery. Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses, we retrieved relevant studies from PubMed, Embase, Cochrane Library, Web of Science Core Collection, China National Knowledge Internet, Wangfang Database, and Chinese Biomedical Database for observational studies investigating the risk factors for postpartum urinary retention from inception to 11 November 2022. The Newcastle-Ottawa Scale and Joanna Briggs Institute's tool were used to assess the risk of bias. We conducted a meta-analysis using RevMan 5.3. In total, 3,074 articles were screened and data from 27 studies were used in the meta-analysis. Sixteen risk factors were identified, namely, labor augmentation (OR = 1.72, 95% CI = 1.17-2.51), primiparity (OR = 2.36, 95% CI = 1.64-3.38), manual fundal pressure (OR = 2.84, 95% CI = 1.00-8.11), perineal hematoma (OR = 7.28, 95% CI = 1.62-32.72), vulvar edema (OR = 7.99, 95% CI = 5.50-11.63), the total duration of labor (MD = 90.10, 95% CI = 49.11-131.08), the duration of the first stage of labor (MD = 33.97, 95% CI = 10.28-57.65), the duration of the second stage of labor (MD = 14.92, 95% CI = 11.79-18.05), the duration of the second stage of labor > 60min (OR = 3.18, 95% CI = 1.32-7.67), mediolateral episiotomy (OR = 3.65, 95% CI = 1.70-7.83), severe perineal tear (OR = 3.21, 95% CI = 1.84-5.61), epidural analgesia (OR = 3.23, 95% CI = 1.50-6.96), forceps delivery (OR = 4.95, 95% CI = 2.88-8.51), vacuum delivery (OR = 2.44, 95% CI = 1.30-4.58), neonatal birth weight > 4,000g (OR = 3.61, 95% CI = 1.96-6.65), and neonatal birth weight > 3,500g (OR = 1.89, 95% CI = 1.12-3.19). Our results demonstrated that labor augmentation, primiparity, manual fundal pressure, perineal hematoma, vulvar edema, the total duration of labor, the duration of the first stage of labor, the duration of the second stage of labor, the duration of the second stage of labor > 60min, mediolateral episiotomy, severe perineal tear, epidural analgesia, forceps delivery, vacuum delivery, and neonatal birth weight > 4,000g and > 3,500g were risk factors for postpartum urinary retention in women with vaginal delivery. The specific ranges of the first and the second stages of labor causing postpartum urinary retention need to be clarified.

Perinatal outcomes in grand multiparous women stratified by parity- A large multicenter study

ObjectiveTo assess the effect of each additional delivery among grand multiparous (GMP) women on maternal and neonatal outcomes. MethodsA multi-center retrospective cohort study that examined maternal and neonatal outcomes of GMP women (parity 5–10, analyzed separately for each parity level) compared to a reference group of multiparous women (parity 2–4). The study population included grand multiparous women with singleton gestation who delivered in one of four university-affiliated obstetrical centers in a single geographic area, between 2003 and 2021. We excluded nulliparous, those with parity > 10 (due to small sample sizes), women with previous cesarean deliveries (CDs), multifetal gestations, and out-of-hospital deliveries. The primary outcome of this study was postpartum hemorrhage (PPH, estimated blood loss exceeding 1000 ml, and/or requiring blood product transfusion, and/or a hemoglobin drop > 3 g/Dl). Secondary outcomes included unplanned cesarean deliveries, preterm delivery, along with other adverse maternal and neonatal outcomes. Univariate analysis was followed by multivariable logistic regression. ResultsDuring the study period, 251,786 deliveries of 120,793 patients met the inclusion and exclusion criteria. Of those, 173,113 (69%) were of parity 2–4 (reference group), 27,894 (11%) were of parity five, 19,146 (8%) were of parity six, 13,115 (5%) were of parity seven, 8903 (4%) were of parity eight, 5802 (2%) were of parity nine and 3813 (2%) were of parity ten.GMP women exhibited significantly higher rates of PPH starting from parity eight. The adjusted odds ratios (aOR) were 1.19 (95 % CI: 1.06–1.34) for parity 8, 1.17 (95 % CI: 1.01–1.36) for parity 9, and 1.39 (95 % CI: 1.18–1.65) for parity 10. Additionally, they showed elevated rates of several maternal and neonatal outcomes, including placental abruption, large-for-gestational age (LGA) neonates, neonatal hypoglycemia, and neonatal seizures. Conversely, they exhibited decreased risk for other adverse maternal outcomes, including preterm deliveries, unplanned cesarean deliveries (CDs), vacuum-assisted delivery, and third- or fourth-degree perineal tears and small-for-gestational age (SGA) neonates. The associations with neonatal hypoglycemia, and neonatal seizure were correlated with the number of deliveries in a dose-dependent manner, demonstrating that each additional delivery was associated with an additional, significant impact on obstetrical complications. ConclusionOur study demonstrates that parity 8–10 is associated with a significantly increased risk of PPH. Parity level > 5 correlated with increased odds of placental abruption, LGA neonates, neonatal hypoglycemia, and neonatal seizures. However, GMP women also demonstrated a reduced likelihood of certain adverse maternal outcomes, including unplanned cesarean, preterm deliveries, vacuum-assisted deliveries, SGA neonates, and severe perineal tears. These findings highlight the importance of tailored obstetrical care for GMP women to mitigate the elevated risks associated with higher parity.

The impact of selective episiotomy on maternal short-term morbidity: a retrospective study

Background The aim is to investigate the risk of short-term maternal morbidity caused by the selective clinical use of episiotomy (rate < 0.02), and to compare the risk of severe perineal tears with the statewide risk. Methods In this retrospective cohort study, we investigated the effect of selective episiotomy on the risk of severe perineal tears and blood loss in singleton term deliveries, using propensity scores with inverse probability weighting. Results This study included 10992 women who delivered vaginally between 2008–2018. Episiotomy was performed in 171 patients (1.55%), three of whom (1.75%) experienced severe perineal tears compared to 156 (1.44%) in the control cohort. The adjusted odds ratio of severe perineal tears was 2.06 (95% confidence interval [CI]: 0.51, 8.19 with 0.3 p value). Multivariate linear regression showed that episiotomy increased blood loss by 96.3 ml (95% CI: 6.4, 186.2 with 0.03 p value). Episiotomy was performed in 23% (95% CI: 0.228, 0.23) of vaginal deliveries in the state of Hessen, with a risk of severe perineal tears of 0.0143 (95% CI: 0.0139, 0.0147) compared to 0.0145 (95% CI: 0.0123, 0.0168) in our entire cohort. Conclusions Selective use of episiotomy does not increase the risk of higher-grade perineal tears. However, it may be associated with maternal morbidity in terms of increased blood loss.

Risk factors associated with severe perineal tear at Public Hospitals in Bahir Dar town, Northwest Ethiopia

Background: Birth-related perineal trauma is a public health issue that can lead to significant maternal morbidity in low-income countries like Ethiopia. Research on the proportion and underlying factors of birth-related severe perineal tears is rare, both in the study area and throughout Ethiopia. As a result, this study was intended to determine the proportion of birth-related severe perineal tears and associated factors at hospitals in Bahir Dar town, Ethiopia. Methods: A cross-sectional study was undertaken at government hospitals in Bahir Dar, Ethiopia. Five hundred fifteen study subjects were selected using a systematic sampling technique. The data was collected through chart reviews and interviews. Data was entered and analyzed using SPSS Version 23. A binary logistic regression was employed to identify factors, and an adjusted odds ratio and a 95% CI were used to estimate the strength of relationships. Statistical significance was declared at p-value &lt; 0.05. Result: The prevalence of severe perineal tears was 7.4%. Previous history of a perineal tear (AOR = 3.06, 95% CI = 1.24–7.59), being nullipara (AOR = 4.03, 95% CI = 1.42–11.44), occipito-posterior position (AOR = 5.49, 95% CI = 2.27–13.28), duration of second stage of labor &gt; 2 h (AOR = 5.42, 95% CI = 2.26–12.99), birth attendant’s work experience &lt;1 year (AOR = 5.98, 95% CI = 2.16–16.57) were found to be associated with birth-related severe perineal tear. Conclusion: The proportion of birth-related severe perineal tears was high at governmental hospitals in Bahir Dar town. Previous history of perineal tear, work experience of birth attendants, duration of the second stage of labor, being nullipara, and occipito-posterior position were the major determinants of severe perineal tear. This study suggests that strategies and regulations should be developed to shorten the second stage of labor.

Obstetric anal sphincter injuries: are defunctioning colostomies required?

The incidence of obstetric anal sphincter injury in the UK is rising. This condition leads to significant morbidity in otherwise healthy women. Significant long-term complications of obstetric anal sphincter injury include anal incontinence, ano-vaginal or recto-vaginal fistula and psychological distress. Current management of third and fourth degree perineal tears post-vaginal birth is primary repair. This article discusses the role of a defunctioning colostomy in women with severe perineal tears in the immediate postnatal period. A defunctioning colostomy is a surgical procedure to open a section of colon (large bowel) onto the abdominal wall; a stoma bag is then worn over this to collect faeces. The rectum and anal canal are not used (defunctioned), while the stoma is in place and the perineum is healing. This article describes the purpose and operative steps of colostomy formation and reviews current published evidence of outcomes in those with colostomy formation for obstetric anal sphincter injury. It also addresses the difference in clinical approach between obstetricians and colorectal surgeons in relation to the management of severe obstetric anal sphincter injury and highlight the need for multidisciplinary input.

Hubungan Antara Paritas dengan Kejadian Ruptur Perineum (Literature Review)

Perineal tears occurs either spontaneously with vaginal or instrument delivery, or as a result of an episiotomy. Severe perineal tears can involve damage to the anal sphincter and anal mucosa. Perineal tears is caused by several factors which are classified into three groups. Such as maternal factors, delivery procedures, and mothers where parity is a factor in perineal tears. This study used a literature review study design. Research article searches were sourced from the Pubmed, Google Scholar, SCOPUS, scientificdirect, and BMC electronic databases. Search articles using keywords, namely perineal tears, parity, obstetric sphincter anal injuries. The results of a review of nine journals that have been carried out show that parity with a small number can cause perineal tears with a high degree, and vice versa parity with a high number further reduces the degree of perineal tears. But it is also affected by physical activities such as gymnastics and sports which can help to reduce the risk of perineal tears regardless of existing parity. The data that we reviewed can be concluded that there is a relationship between parity and perineal tears.

Risk factors associated with severe perineal lacerations during vaginal delivery: a 10-year propensity score–matched observational study

Severe perineal lacerations are rare obstetrical complications in high-income countries. However, the prevention of obstetric anal sphincter injuries is crucial because of their long-term consequences on a woman's digestive function, sexual-mental health, and well-being. The probability of obstetric anal sphincter injuries can be predicted by assessing antenatal and intrapartum risk factors. This study aimed to assess the incidence of obstetric anal sphincter injuries at a single institution for 10 years and to identify women more at risk by evaluating the relationship between antenatal and intrapartum risk factors and severe perineal tears. The main outcome measured in this study was the occurrence of obstetric anal sphincter injuries during vaginal delivery. This was an observational retrospective cohort study conducted at a University Teaching Hospital in Italy. The study was conducted from 2009 to 2019 using a prospectively maintained database. The study cohort included all women with singleton pregnancy at term who delivered via vaginal delivery in cephalic presentation. Of note, data analysis was performed in 2 stages: a propensity score matching to balance possible differences between patients with obstetric anal sphincter injuries and those without and a stepwise univariate and multivariate logistic regression. A secondary analysis was performed to further evaluate the effect of parity, epidural anesthesia, and duration of the second stage of labor by adjusting for potential confounders. Of 41,440 patients screened for eligibility, 22,156 met the inclusion criteria, and 15,992 were balanced after propensity score matching. Obstetric anal sphincter injuries occurred in 81 cases (0.4%), 67 (0.3%) after spontaneous delivery and 14 (0.8%) after vacuum delivery(P=.002). There was an increased odds of severe lacerations of nearly 2-fold for nulliparous women delivering by vacuum delivery (adjusted odds ratio, 2.85; 95% confidence interval, 1.19-6.81; P=.019), with a reciprocal reduction in women with spontaneous vaginal delivery (adjusted odds ratio, 0.35; 95% confidence interval, 0.15-0.84; P=.019) and at least 1 previous delivery (adjusted odds ratio, 0.51; 95% confidence interval, 0.31-0.85; P=.005). Epidural anesthesia was associated with a lower incidence of obstetric anal sphincter injuries (adjusted odds ratio, 0.54; 95% confidence interval, 0.33-0.86; P=.011). The risk of severe lacerations was independent of the duration of the second stage of labor (adjusted odds ratio, 1.00; 95% confidence interval, 0.99-1.00; P=.3), whereas the risk was reduced when mediolateral episiotomy was performed (adjusted odds ratio, 0.20; 95% confidence interval, 0.11-0.36; P<.001). Neonatal risk factors include head circumference (odds ratio, 1.50; 95% confidence interval, 1.18-1.90; P=.001) and vertex malpresentation (adjusted odds ratio, 2.71; 95% confidence interval, 1.08-6.78; P=.033). Induction of labor (adjusted odds ratio, 1.13; 95% confidence interval, 0.72-1.92; P=.6), frequent obstetrical examinations (adjusted odds ratio, 1.17; 95% confidence interval, 0.72-1.90), and women's supine position at birth (adjusted odds ratio, 1.25; 95% confidence interval, 0.61-2.55; P=.5) were further evaluated. Among severe obstetrical complications, shoulder dystocia increased the risk of obstetric anal sphincter injuries by nearly 4 times (adjusted odds ratio, 3.92; 95% confidence interval, 0.50-30.74; P=.2), whereas postpartum hemorrhage occurred 3 times more often in cases of delivery complicated by severe lacerations (adjusted odds ratio, 3.35; 95% confidence interval, 1.76-6.40; P<.001). The relationship among obstetric anal sphincter injuries, parity, and the use of epidural anesthesia was further confirmed in a secondary analysis. We found that primiparas who delivered without epidural anesthesia had the highest risk of obstetric anal sphincter injuries (adjusted odds ratio, 2.53; 95% confidence interval, 1.46-4.39; P=.001). Severe perineal lacerations were found to be a rare complication of vaginal delivery. By using a robust statistical model, such as propensity score matching, we were able to investigate a broad range of antenatal and intrapartum risk factors, including use of epidural anesthesia, number of obstetrics examinations, and patient position at birth, which are usually underreported. Moreover, we found that women who delivered for the first time without epidural anesthesia had the highest risk of obstetric anal sphincter injuries.

Time trends in episiotomy and severe perineal tears in Portugal: a nationwide register-based study

IntroductionRates of episiotomy and severe perineal tears (SPT) are indicators of the quality of obstetric care. Time-trends in the reported occurrence of episiotomy and SPT can contribute to understand both, changes in care and in the frequency of risk factors. Therefore, we aimed to estimate time trends in the frequency of SPT in Portugal and its relationship with episiotomy.MethodsWe conducted a nationwide register-based study using data from the national inpatient database of all Portuguese public hospitals between 2000 and 2015. Time-trend analysis using joinpoint regression models was performed to identify trends (joinpoints) and compare time changes in the prevalence of SPT and risk factors expressed as annual percentage changes (APC) with 95% Confidence Intervals (95% CI). Poisson regression models were fitted to estimate whether time-trends in SPT rates were explained by changes in risk factors and to assess the association between episiotomy and SPT. Adjusted relative risk (aRR) and their respective 95% CI were obtained.ResultsFrom 908,999 singleton vaginal deliveries, 20.6% were instrumental deliveries, 76.7% with episiotomy and 0.56% were complicated by SPT. Among women with non-instrumental deliveries and no episiotomy SPT decreased from 2009 onwards (1.3% to 0.7%), whereas SPT kept increasing in women with episiotomy for both non-instrumental (0.1% in 2000 to 0.4% in 2015) and instrumental deliveries (0.7% in 2005 to 2.3% in 2015). Time-trends in potential risk factors did not explain the observed increase in SPT. Episiotomy was associated with a decrease in SPT with adjusted RR varying between 2000 and 2015 from 0.18 (95%CI:0.13–0.25) to 0.59 (95%CI:0.44–0.79) for non-instrumental deliveries and from 0.45 (95%CI:0.25–0.81) to 0.50 (95%CI:0.40–0.72) for instrumental deliveries.ConclusionsOur findings suggest that episiotomy rate could safely further decrease as the main factor driving SPT rates seems to be an increase in awareness and reporting of SPT particularly among women who underwent an episiotomy.

Examining the Association Between Episiotomy and Severe Perineal Tears in a Tertiary Care Center Implementing a Restrictive Episiotomy Policy.

Background Perineal lacerations are feared complications of vaginal delivery, especially the severe types (third- and fourth-degree tears). World Health Organization (WHO) recommended restrictive episiotomy practice after alarming literature linked the increase in severe tears with routine episiotomy. Therefore, this study aimed to measure the association between episiotomy and the incidence of third- and fourth-degree perineal tears and infections in women who underwent episiotomy versus those who did not at a tertiary care center implementing the restrictive episiotomy policy in Jeddah, Saudi Arabia. Methods This retrospective cohort study was conducted in the Department of Obstetrics and Gynecology at King Abdulaziz Medical City (KAMC), Western Region, between May 2016 and May 2018, targeting all pregnant women who underwent normal spontaneous vaginal delivery. The nonprobability convenient sampling technique was used for women who underwent episiotomy. Women without episiotomy (control group)were randomly selected in a 1:1 ratio. The prevalence (incidence) of episiotomy and its association with severe perineal tears were measured. Statistical data were analyzed using SPSS version 27 (IBM Corp., Armonk, NY). A p-value of less than 0.05 was considered significant. Result A total of 7436 deliveries were recorded. At KAMC, episiotomy had a prevalence of 10% and was more common in primipara. The incidence of third-degree tears was 3.3% in the episiotomy group and 0.8% in the control group (odds ratio, 4.1; p = 0.03). None had fourth-degree tears. Furthermore, the infection rate was not significantly different between the two groups (0.1% vs. 0.1%). Using Firth's logistic regression model, primipara emerged as an independent significant risk factor (OR, 3.5 [1.1-11.2]; p = 0.035)while the trend toward increased risk for tear development in the episiotomy group became statistically insignificant (OR, 2.3 [0.7-8.0]; p = 0.19). A post hoc examination to observe the association between episiotomy exposure and BMI using a stepwise logistic regression model showed that parity and age were independent risk factors for episiotomy, with OR values of 2.2 (1.6-3.2) and 0.9 (0.88-0.94), respectively (p < 0.001). The BMI became insignificant, with an OR of 1.0 (0.7-1.4) (p = 0.96). Conclusion The development of severe perineal tears in acenter with a restrictive episiotomy policy is rare. Parity has emerged as an independent risk factor for severe perineal tears.Prospective multicenter research with a larger sample size is recommended to validate this study's findings further and investigate other obstetric measures to reduce severe tears in primi mothers.

The Effect of Warm Compress and Proper Perineal Support Technique on Prevention of Severe Perineal Trauma

Introduction: Vaginal deliveries are frequently linked with genital tract damage, and rips affecting the anal sphincter or mucosa (third- and fourth-degree tears) can cause major complications. To prevent harm, several perineal methods are employed to slow down the delivery of the baby’s head and allow the perineum to extend gently. Midwives all across the globe employ massage, warm compresses, and various perineal care techniques. Objective: The aim of this study was to analyze the effect of warm compress and perineal support on prevention of severe perineal trauma among primiparous women. Design: This study was a quasi-experimental study. Settings: The study settings included tertiary care hospital settings affiliated with the academic center in the UAE. Patients and Methods: Around 192 females were consecutively divided into 2 age-matched groups. Group 1 had 99 patients in which warm perineal compresses were applied in addition to perineal support, and no episiotomy was performed. There were 93 control patients in group 2 who were just given perineal support, and prophylactic episiotomy was performed. Main Outcomes Measured: Maternal risk factors such as an unhealthy perineum and short perineum were noted. The fetal risk factors such as large for gestational age, shoulder dystocia, and occipito-posterior position were also noted. Peripartum data of instrumental delivery, long stage two of delivery, oxytocin augmentation, epidural use, pushing technique, delivery position, and degree of perineal tear were also evaluated. Result: Neither maternal risk factors nor fetal factors were significant between the two groups. However, in peripartum characteristics, instrumental deliveries (17 [18.3%] vs. 0 [0%] p value <0.001) and lithotomy position (53 [57%] vs. 0 [0%] p value <0.001) were significantly more common in the control group. Other risk factors such as oxytocin augmentation, prolonged second stage, and epidural use did not differ significantly between the two groups. Warm compresses prevented severe perineal tears in group 1. Group 1 showed statistically significant (p value <0.001) reduction in severe (grade 2 and 3 tear) form of perineal injury during the second stage of labor. Conclusion: Warm perineal compresses in primigravida females during the second stage of labor may help prevent severe perineal injuries and reduce the incidence of instrumental delivery as well as lithotomy position requirement.

The impact of a perineal care bundle on women’s birth experiences in Queensland, Australia: A qualitative thematic analysis

A care bundle was introduced into 28 Australian hospitals in 2018 with the aim of reducing severe perineal tears. There has been limited research regarding the impact of this bundle on women’s birth experiences. QuestionHow does the introduction of a perineal care bundle impact on women’s birth experiences in Queensland maternity hospitals? MethodsWe recruited 18 women who had birthed in five Queensland hospitals where the bundle had been implemented. Semi-structured, individual interviews were analysed using reflexive thematic analysis. FindingsThree descriptive themes were generated: 1) Lack of information and consent to bundle elements, 2) Other non-consented and disrespectful treatment and 3) Recommendations for hospitals and clinicians. Two analytic themes were generated: 1) Default-position: Prioritising policies over women’s autonomy and 2) Counter-position: Women asserting their rights to autonomy and respect. DiscussionNone of the women interviewed could recall having received information about the perineal care bundle from clinicians during pregnancy. While many women accepted that its elements were in their or their baby’s best interests, this was not the case for all women. Some women reported coercive and non-consented application of bundle elements, which they found distressing. ConclusionGiven the broader institutional context in which the perineal bundle was implemented, the impact on information provision, informed consent and the detrimental emotional consequences for some women arising from the bundle’s implementation were largely foreseeable. The potential for bundled care initiatives to impinge on women’s human rights to autonomy and respectful care should be given greater preventative attention prior to implementation.

Women's preferences for water immersion during labor and birth: Results from a discrete choice experiment

Background and aimNo discrete choice experiment study has been conducted to elicit women's preferences for water immersion during labor and birth. MethodsAn online survey including sociodemographic questions and choice cards was conducted to explore women's preferences (i.e., factors that may influence their decision). Each participant responded to 12 choice cards with 6 attributes/factors (i.e., birth mode, duration of the labor phase, pain sensation, risk of severe perineal tears, risk of death of the newborn, and newborn general condition). Utilities were estimated using logit, latent class, and hierarchical Bayesian analyses. FindingsA total of 1088 subjects completed the survey in 2019. The risk of death of the newborn was given high priority by women in all but one analyses, while the risk of severe perineal tears was always considered the least important attribute. The latent class analysis clearly revealed three classes of women. The largest class including 52.9% of women was interested in water birth if it could reduce pain and would be risk-free for the newborn. The second class included 30.8% of women interested in water immersion but only during the labor phase. Finally, the third class (16.2%) did not want to consider water immersion during labor and birth, regardless of its risks and benefits. Follow-up questions revealed that many women were interested in water birth only if they could be assured that there would be no risk for the newborn. Discussion and conclusionThis study provided insights in favor of water immersion during labor and birth contingent upon the safety of the procedure for the newborn. Statement of significanceNo discrete choice experiment on women's preference for water immersion during childbirth was previously conducted.Six attributes/factors were used for the discrete choice experiment.Water immersion is poorly used in Quebec with only 49 (7.9%) women over 621 with childbirth experience reporting such immersion.A majority of women (70–80%) were in favor of water immersion.

Vocalization during the second stage of labor to prevent perineal trauma: A randomized controlled trial

Background and purposeMost women suffer some degree of perineal trauma during vaginal delivery. Second stage management strategies, including vocalization, to protect the perineum have been investigated. Objective: To compare the frequency and degree of perineal trauma at vaginal delivery, with and without use of the vocalization maneuver during the second stage of labor. Materials and methodsThis is an open-label, randomized controlled trial. We conducted the study at the Center for Normal Deliveries of IMIP. We included low-risk women without prior cesarean deliveries. Women who met the inclusion criteria and signed the informed consent form were randomized to one of two groups: Group A (experimental) and Group B (control). A physical therapist encouraged women in Group A to maintain an open glottis during pushing and to emit sounds when exhaling (vocalization). Women in Group B underwent routine humanized vaginal deliveries. The outcomes of the study were perineal integrity and degree of perineal laceration. These were measured by the study team immediately after completion of the third stage of labor. Results: Women in Group A tended to have less severe perineal tear (less second and third degree lacerations) and smaller lacerations than women in group B. The vocalization maneuver reduced the risk of a perineal tear greater than 2 cm by 68% (NNT 2.2). There was no difference in other outcomes. ConclusionEncouraging women to follow a vocalization protocol coached by a physical therapist during the second stage of labor can be a helpful labor assistance technique, since this study showed that vocalization is associated with less extensive perineal tears. Clinical Trial RegistrationThis study was registered on ClinicalTrials.gov (www.clinicaltrial.gov) registration number: NCT03605615.

Caesarean section, vaginal instrumental delivery and perineal morbidity in the Slovak Republic in the years 2007-2018.

Analysis of caesarean section, vaginal instrumental deliveries and severe perineal morbidity in the Slovak Republic in the years 2007-2018. The analysis of prospectively collected caesarean section and vaginal instrumental delivery data in the years 2007-2018, and episiotomies and severe perineal morbidity data in the years 2008-2018 from obstetrics hospitals in the Slovak Republic. Caesarean section rate progressively increased from 24.1% in 2007 up to 30.8% in 2013 and decreased to 29.6% in 2018. Vacuum-extraction frequency was 1.3% in 2007 and increased up to 2.0% till 2018. Forceps frequency decreased since 2008-2018 from 0.56% to 0.43%. In the years 2008-2018, frequency of perineal tears of the 3rd and 4th degree increased from 0.4% to 0.8%. Frequency of episiotomies decreased in the years 2008-2018 from 74.7% to 47.7%. The highest caesarean section rate in the Slovak Republic - 30.8% occurred in 2013, but slowly decreased in the following years. The frequency of vacuum extraction increased and forceps decreased. Frequency of episiotomies had decreased and severe perineal tears held an increasing trend.

Impact of COVID-19-Related Lockdown on Delivery and Perinatal Outcomes: A Retrospective Cohort Study.

Objective: The magnitude and direction of effects on pregnancy outcomes of the lockdown imposed during COVID-19 have been uncertain and debated. Therefore, we aimed to quantify delivery and perinatal outcomes during the first nationwide lockdown due to the COVID-19 pandemic compared with the same durations of time for the pre- and post-lockdown periods. Study design: This was a retrospective cohort study of six university hospital maternity units distributed across France, each of which serves as the obstetric care referral unit within its respective perinatal network. Maternal and perinatal outcomes were compared between the lockdown period and same-duration (i.e., 55-day) periods before and after the 2020 lockdown (pre-lockdown: 22 January–16 March; lockdown: 17 March–10 May; post-lockdown: 11 May–4 July). We compared the overall rates of Caesarean delivery (CD), pre-labor CD, labor induction, operative vaginal delivery, severe postpartum hemorrhage (≥1 L), severe perineal tear, maternal transfusion, and neonatal mortality and morbidity (1- and 5-min Apgar scores < 7), hypoxia and anoxia (umbilical arterial pH < 7.20 or <7.10, respectively), and admission to a neonatal intensive care unit before discharge. Adjusted odds ratios were estimated using logistic regression, controlling for region of birth, maternal age category, multiparity, multiple pregnancies, diabetes, and hypertensive disorders. Results: The study sample consisted of 11,929 women who delivered consecutively at one of the six maternity units studied (4093 pre-lockdown, 3829 during lockdown, and 4007 post-lockdown) and their 12,179 neonates (4169 pre-lockdown, 3905 during lockdown, and 4105 post-lockdown). The maternal and obstetric characteristics of the women delivering during the lockdown period were alike those delivering pre- and post-lockdown on maternal age, parity, body mass index, rate of complication by hypertensive disorders or insulin-treated diabetes, and gestational age at delivery. Overall CD rates were similar during the three periods (23.6%, 24.8%, and 24.3% pre-lockdown, lockdown, and post-lockdown, respectively) and no outcome differed significantly during lockdown compared to pre- and post-lockdown. These findings were consistent across maternity units. Conclusion: The maternal and perinatal outcomes are reassuring regarding the performance of the health-care system during the COVID-19 lockdown studied. Such information is crucial, because additional COVID-19-related lockdowns might still be needed. They are also instructive regarding potential future pandemics.

Obstetric Perineal Tears in Pregnant Adolescents and the Influencing Factors

The incidence and risk factors of obstetric perineal tear occurrence in vaginal delivery of adolescent pregnant patients are not well established. We aimed to describe the incidence of obstetric perineal tears in adolescents and the maternal obstetric risk factors associated with this situation. Retrospective cohort study SETTING: Department of Obstetrics and Gynecology, Tepecik Education and Research Hospital, Izmir, Turkey PARTICIPANTS: Adolescent pregnant patients (≤19 years) who delivered vaginally in our institution between January 2014 and January 2021 INTERVENTIONS AND MAIN OUTCOME MEASURES: The main outcome measures were the incidence of perineal tears, the degree of perineal tears, and the risk factors associated with severe perineal tears in adolescents. Severe perineal tears include third- and fourth-degree lacerations. A third-degree tear is defined as partial or complete disruption of the anal sphincter muscles, and a fourth-degree tear is defined as lacerations involving the rectal mucosa. A total of 3441 adolescents who had a vaginal delivery were included in the study. The rate of severe perineal tear was 5.8% (200/3441). Risk factors associated with obstetric laceration in adolescents in multivariate analysis were nulliparity (OR=1.72; 95% CI, 1.14-2.41; P=0.007), high birth weight (OR=4.1; 95% CI, 2.71-6.21; P < 0.001), and labor induction (OR=1.36; 95% CI, 1.01-1.85; P=0.02). Spontaneous onset of labor and previous delivery reduced the risk of severe perineal tear in adolescent pregnant patients (respectively, OR=0.68; 95% CI, 0.51-0.94; P=0.02 and OR=0.51; 95% CI, 0.33-0.79; P=0.007). In adolescents, the risk of severe perineal tear was associated with nulliparity, birth weight, and labor induction. The only possible modifiable risk factor was labor induction.

Relationship between Perineal Body Length and Degree of Perineal Tears in Primigravidas Undergoing Vaginal Delivery with Episiotomy.

Background Perineal tears are one of the most common complications of vaginal delivery. Severe perineal tears can cause various morbidities. There are many factors that affect the occurrence of perineal tears. One of the major factors related to the occurrence of perineal tears is the length of the perineal body. However, until now, no research in Indonesia has concluded that the length of perineal body can predict the perineal tears. Objective To find the relationship between perineal body length and perineal tears, so it can provide a reference on the use of perineal body length to predict severe perineal tears in vaginal delivery with episiotomy. Methods This nested case-control study was conducted at RSUD Tangerang and RSUD Karawang in Indonesia from February to September 2017. A total of 126 primigravida patients participated in the study consecutively. The length of the perineal body was then measured and followed until the start of the second stage of labor. Afterwards, the perineal length and degree of perineal tears were assessed using unpaired T-test for bivariate analysis, multivariate analysis, and scoring test to predict the occurrence of third- and fourth-degree of perineal tears with power calculation (β) 80% and Zβ 0.842. Results There was a significant difference in mean length of the perineal body between the group with first- and second-degree perineal tears and the group with third- and fourth-degree perineal tears (p < 0.001). From the multivariate analysis, adjusted OR was 5.26 (95% CI 1.52–18.17). Score test was performed to predict the occurrence of third- and fourth-grade perineal tears. Perineal body length and head circumference could be used as predicting factors of perineal tears. Perineum length ≤ 3.0 cm and head circumference ≥ 33.5 cm posed a risk of perineal tears of third and fourth degrees (70.52%). Conclusion The length of the perineal body has a good ability to predict the occurrence of perineal tears.

Periniotomy: Why a Liberal Procedure

Episiotomy was previously recommended in 1920 to prevent severe perineal tears and lacerations, but later on it was adopted as a standard practice and now its routine use has been questioned. Various studies found that routine use of episiotomy can change the perineal flora and not all the labor need episiotomy.

Prophylactic manual rotation of occiput posterior and transverse positions to decrease operative delivery: the PROPOP randomized clinical trial

Persistent occiput posterior and occiput transverse positions are the most common malpositions of the fetal head during labor and are associated with prolonged second stage of labor, cesarean deliveries, instrumental deliveries, severe perineal tears, postpartum hemorrhage, and chorioamnionitis. Manual rotation is one of several strategies described to deal with these malpositions. This study aimed to determine if the trial of prophylactic manual rotation at the early second stage of labor is associated with a decrease in operative deliveries (instrumental and/or cesarean deliveries). We conducted a multicenter, open-label, randomized controlled trial in 4 French hospitals. Women with singleton term pregnancy and occiput posterior or occiput transverse position confirmed by ultrasound at the early second stage of labor and with epidural analgesia were eligible. Women were randomly assigned (1:1) to either undergo a trial of prophylactic manual rotation of occiput posterior or occiput transverse position (intervention group) or no trial of prophylactic manual rotation (standard group). The primary outcome was operative delivery (instrumental and/or cesarean deliveries). The secondary outcomes were length of the second stage of labor, maternal complications (postpartum hemorrhage, operative complications during cesarean delivery, episiotomy and perineal tears), and neonatal complications (Apgar score of <5 at 10 minutes, arterial umbilical pH of <7.10, neonatal injuries, neonatal intensive care unit admission). The main analysis was focused on intention-to-treat analysis. From December 2015 to December 2019, a total of 257 women (mean age, 30.4 years; mean gestational age, 40.1 weeks) were randomized: 126 were assigned to the intervention group and 131 were assigned to the standard group. Operative delivery was significantly less frequent in the intervention group compared with the standard group (29.4% [37 of 126] vs 41.2% [54 of 131]; P=.047; differential [intervention-standard] [95% confidence interval]=-11.8 [-15.7 to-7.9]; unadjusted odds ratio [95% confidence interval]= 0.593 [0.353-0.995]). Women in the intervention group were more likely to have a significantly shorter second stage of labor. Trial of prophylactic manual rotation of occiput posterior or occiput transverse positions during the early second stage of labor was statistically associated with a reduced risk of operative delivery. This maneuver could be a safe strategy to prevention operative delivery.