The Safety and Efficacy of Transcutaneous Nerve Stimulation (TENS) in Reducing Vaginal Delivery Labor Pain: Randomized Controlled Clinical Trial

Background: Labor analgesia remains the center of interest for both obstetricians and women. The safety of the traditional pharmacologic analgesics remains questionable due to their potential fetal and maternal complications. Therefore, several non-pharmacological modalities were evaluated for their safety and efficacy to relieve labor pain. Among these methods, transcutaneous nerve stimulation (TENS) gained much concern due to ease of use, low cost and high capacity for women self-titration. The study aims to investigate the efficacy of TENS in reducing labor pain associated with vaginal deliveries, and to determine the factors controlling the response to TENS. Methods: The study was a randomized, controlled clinical trial. A total of 390 women candidates for vaginal delivery were randomly allocated to 3 groups of intervention: paracetamol infusion, TENS, and intramuscular pethidine (130 women per group). The primary endpoint was pain intensity assessed on 10-point VAS scale and women satisfaction. Secondary endpoints included maternal or fetal complications. Results: VAS scores recorded during vaginal deliveries demonstrated a statistically significant reduction in TENS group compared to paracetamol at 15, 30 minutes, 1 and 2 hours, while pethidine arm demonstrated lower scores than TENS group (p < 0.001). The intermediate analgesic efficacy of TENS was preserved when evaluating episiotomy related pain scores. Analysis of differences between good and poor responders to TENS indicated that weight, BMI, education level and the stimulation characteristics were statistically different between the two subgroups (p < 0.001). Adverse maternal and fetal outcomes in TENS arm were comparable to paracetamol and significantly less than pethidine. Conclusion: TENS is a reliable labor pain analgesic with comparable efficacy and superior safety relative to pethidine. Clinicians should personalize TENS therapy according to women’s BMI and education level for optimized pain control.

Postpartum Quality of Life in Primiparous Women after Normal Vaginal Delivery versus Caesarean Section

Background: Studies on either postnatal quality of life in general or studies that compare quality of life in new mothers after different mode of delivery are limited. An investigation on health related quality of life measures in women after different type of delivery showed that women who had vaginal delivery had better health related quality of life compared to those who had caesarean section. However, the best method of delivery, vaginal or caesarean for postpartum quality of life is a difficult question as it is a matter of controversy both from professional’s perspectives and from women’s experience during childbirth. Objective: To compare postpartum quality of life in primiparous women after vaginal delivery versus caesarean section. Methods: Prospective cross-sectional study was conducted at the department of Obstetrics and Gynecology, Salmaniya medical complex in Kingdom of Bahrain. 500 primiparous women who gave birth either vaginally or by cesarean section answered a questionnaire designed to include general information, questions from short form health survey questionnaire (SF-36) and specific questions regarding postnatal related symptoms. Results: Body pain, fatigue, wound pain, headache and backache were significantly higher in cesarean section group as compared to vaginal delivery group (p-value Conclusion: Cesarean delivery has negatively affected the quality of life (QOL) of primiparous women. More studies with larger sample sizes should be conducted to examine the effects of cesarean delivery on QOL in both primiparous and multiparas within a shorter period after delivery. .

Spontaneous Paravesical and Broad Ligament Hematoma after Vaginal Delivery Had Uterine Artery Embolization after Evacuating the Hematoma

Broad ligament hematoma is typically seen during cesarean section due to rupture of branches of uterine and vaginal vessels and it’s rare to be seen post-normal vaginal delivery. Addressing puerperal hematomas postpartum presents considerable challenges for obstetric care providers. While hematomas such as those affecting the vulva, vulvovaginal region, or paravaginal area are frequently encountered, retroperitoneal hematomas are rare and notably pose a greater risk to the life of the patient. The medical literature contains scant case reports on retroperitoneal hematomas, with no consensus on a definitive treatment approach. Pelvic arterial embolization has emerged as both a sensible and increasingly preferred method for treating these hematomas recently, but its application is contingent upon the patient maintaining hemodynamic stability and the availability of a specialized interventional embolization unit. In our case, we are presenting a very rare case of a 31-year-old primigravida female with a history of in vitro fertilization pregnancy. She delivered a normal vaginal delivery at 31 weeks gestation. Unfortunately, she experienced multiple complications intrapartum, including preeclampsia and placental abruption. These complications increased her risk of developing a broad ligament hematoma.

Predictive value of the trans-perineal three-dimensional ultrasound measurement of the pubic arch angle for vaginal delivery

BACKGROUND Numerous variables are linked to the success of vaginal delivery,including the subpubic arch angle(SPAA)during labor,the importance of which has not yet been fully elucidated.AIM To examine the SPAA distributional characteristics and to ascertain SPAA’s ability to predict the type and duration of labor.METHODS We determined the SPAA and analyzed the corresponding data.We also evaluated the relationship between the SPAA and the mode of delivery and the duration of labor by regression.The present study comprised a total of 301 pregnant women who had given birth at Beijing Tiantan Hospital of the Capital Medical University between January and December of 2021.RESULTS Our analysis of 301 pregnant women revealed that the SPAA measured using three-dimensional trans-perineal ultrasound had a minimum angle of 81°and a maximum angle of 122.2°.The angle in the normal vaginal delivery group was greater than that in the labor cesarean group(P=0.000).The SPAA was a highly significant positive predictor of normal vaginal delivery(P=0.000)with an area under the curve of 0.782(P=0.000;95%CI:0.717-0.848).We found the length of the second stage of labor to be positively influenced by the SPAA using linear regression analysis(P=0.045).CONCLUSION The SPAA was a highly significant positive predictor of normal vaginal delivery.The length of the second stage of labor and normal vaginal birth were predicted by SPAA.

The Efficacy and Safety of Dinoprostone Vaginal Insert for Labor Induction Following Optimization of Standard Operating Procedure: A Retrospective Study in China

Background:The study aimed to assess the efficacy and safety of dinoprostone vaginal insert in labor induction following optimization of standard operating procedure(SOP)and to discover independent predictors of vaginal delivery.Methods:This study comprised 551 pregnant women who required cervical ripening with dinoprostone before induction of labor.Using univariate and multivariate analyses,independent predictors of vaginal delivery were identified.Results:443 of the 551 women(80.4%)gave birth vaginally.Vaginal delivery was predicted by maternal age(24-30 vs.<24,P<0.001;30-35 vs.<24,P=0.03),gestational age(P=0.005),birth weight(P<0.001),parity(P=0.001),pre-pregnancy BMI(P<0.001),premature rupture of membranes(P=0.001),meconium-stained amniotic fluid(P<0.001),fundal height(P<0.001)and the Bishop score(P<0.001).None of the women exhibited severe postpartum hemorrhage.Conclusions:The maternal age,gestational age,birth weight,parity,body mass index,premature membrane rupture,amniotic fluid contamination,fundal height,and the Bishop score were independent predictors of vaginal delivery.These may guide the clinical use of dinoprostone for induction of labor.

Efficacy and Safety of Misoprostol Vaginal Insert to Induce Labor beyond 40 + 0 Weeks of Gestation

Objective: Misoprostol vaginal insert (MVI) is proven to induce labor by a continuously release of PGE1. Previous reports showed that MVI reduced induction to delivery time as well as active labor time but it also increased uterine tachysystole. Here we attempted to clarify whether MVI is safe and efficient for women with pregnancies >40 weeks in a single institute. Methods: This study was performed in Lutheran Hospital Bergisch Gladbach, Germany 2014-2019. A total of 304 women between 40 + 0 to 42 + 0 weeks underwent labor induction with MVI. Outcomes were: 1) maternal: time from insertion to delivery, interventions, mode of delivery, and uterine tachysystole, 2) neo-natal: cord blood pH, APGAR scores, and admission to a neonatal clinic. This study ended unexpectedly due to the withdrawal of MVI (MisodelTM) in September 2019. Results: 75.7% (n = 230) of women gave birth within 24 hours after MVI placement. 72.2% (n = 140) nulliparous women and 81.8% (n = 90) parous women delivered within 24 hours. In two cases emergency CS was required. 67.8% (n = 206) of women delivered vaginal. 2.3% (n = 7) of cord pH levels were below 7.10. 3.3% (n = 10) of newborns were transmitted to a neonatal clinic. Conclusion: MVI is an efficient method to induce labor for pregnant women beyond 40 + 0 weeks. However, considering various complications observed (uterine tachysystole and fetal distress leading to a high number of CS), we cannot universally advocate the use of MVI.

Development and Characterisation of Natamycin Mini-Matrices Prepared by Hot-Melt Extrusion for Vaginal Delivery

In this study, bioadhesive mini-matrices of natamycin were prepared for vaginal application by hot-melt extrusion. In addition, melt viscosity measurements, thermogravimetric analysis, in vitro drug release studies and in vitro mucoadhesion test were performed. High molecular weight grades of KlucelTM hydroxypropylcellulose were used as a thermoplastic polymer. TEC and PEG 400 were chosen as plasticizer. According to the obtained results of melt viscosity measurements, the maximum torque of extrudates prepared using PEG 400 increased with increasing drug loading. The thermo-gravimetric analyses showed that natamycin is stable up to 198℃ and this result gives the opportunity to hot melt extrussion process at 90℃. In vitro drug release results showed that the release was extended up to 72 hours and drug release rate increased with increasing drug loading. In respect to the in vitro mucoadhesion test results, the values of work of mucoadhesion were found high as 771,977 mN.mm, 753,199 mN.mm, 686,356 mN.mm for the prepared hot melt extruded mini-matrices. Our results showed that the developed formulations were found worthy of further studies.

Pelvic floor function and advanced maternal age at first vaginal delivery

Purpose: The study aimed to show differences in temporal recovery of pelvic floor function within 6 months postpartum between women having their first delivery at an advanced age and those having their first delivery at a younger age. Methods: Seventeen women (age: 35.5 ± 3.5, BMI: 21.1 ± 3.2) were studied at about 6 weeks, 3 months, and 6 months after vaginal delivery. Urinary incontinence was assessed by the International Consultation on Incontinence Questionnaire-Short Form. Pelvic floor function was assessed by the anteroposterior diameter of the levator hiatus using transperineal ultrasound. Women who delivered for the first time at 35 years and/or older were defined as being of advanced maternal age. Results: Nine of 17 women (52.9%) were of advanced maternal age and 5 experienced postpartum stress urinary incontinence. Four of these 5 women (80.0%) were of advanced maternal age. The anteroposterior diameter of the levator hiatus at rest was significantly greater in the advanced maternal age women than in the younger maternal age women at 3 and 6 months postpartum (p < 0.01). Among the continent women, the anteroposterior diameter of the levator hiatus at rest was significantly greater in the advanced maternal age women than in the younger maternal age women at 6 months postpartum (p = 0.004). However, among the advanced maternal age women, all parameters of the anteroposterior diameter of the levator hiatus were not significantly different between the women with and without stress urinary continence. Conclusion: Recovery of pelvic floor function following delivery may be delayed in women of advanced maternal age at first delivery because of the damage to the pelvic floor during pregnancy and vaginal delivery, resulting in increase in the incidence of stress urinary incontinence.

Comparison of Sexual Function in Primiparous Women Pre-Pregnancy and Postpartum: Difference of the Sexual Function after the Normal Vaginal Delivery and the Cesarean Section

Introduction: Sexual function is undoubtedly an important dimension of adult life. Due to all the conflicting results with regard to sexual function after the normal vaginal delivery (NVD) or the Cesarean Section (CS), in the present study, we aimed to compare the sexual function in women pre-pregnancy and postpartum and also after the NVD and CS. Materials and Methods: In this cohort study, two groups of healthy women, with antenatal normal pregnancies, who underwent NVD (n = 90) and CS (n = 113), were prospectively studied. The sexual function of the participants was assessed through a Female Sexual Function Index (FSFI) questionnaire in two stages: once before pregnancy and then within 3 to 6 months after delivery, which lasted from June 2011 to September 2012. The data were analyzed by descriptive and inferential statistics. Data were analyzed using chi-square test, Mann-Whitney test, and T Test. Results: Based on the data gathered from 206 women who completed the FSFI questionnaire in two stages, the mean (±SD) self-reported timing of the resumption of sexual activity was 8.9 ± 1.3. There was no significant statistical difference found between the two groups by timing of the resumption of sexual activity in NVD and CS groups. There was also no statistically significant difference found in the overall sexual function scores between the two groups (NVD vs. CS). The average score for female sexual function in desire, arousal, orgasm, and satisfaction within 3 to 6 months after delivery was significantly lower than that of their pre-pregnancy period (p < 0.004). The mean coitus in postpartum period was 1.84 ± 1.20 per week. Conclusion: Based on the findings of this study, there was no significant relationship between the mode of delivery and changes in sexual function. Therefore, it can be claimed that CS is not preferred to NVD with regard to preserving normal sexual functioning.

Vaginal Delivery in a Primipara with Glanzmann Thrombasthenia

To editor:Glanzmann thrombasthenia(GT)is a rare autosomal recessive bleeding disorder that is characterized by a quantitative and/or qualitative defect in the platelet integrinαIIbβ3(previously known as glycoprotein(GP)IIb/IIIa),the major platelet receptor of fibrinogen.DefectiveαIIbβ3 can result in the absence of platelet aggregation.Pregnancy and delivery in women with GT can present specific challenges as there is a significant risk of both maternal and fetal bleeding.

Vaginal Delivery and Breastfeeding Benefit Infant Immune Response to Hepatitis B Vaccine:A Prospective Cohort Study

Background and Aims:Natural vaginal delivery and breastfeeding favor the development of a strong immune system in infants,and the immune response of infants to vaccines is closely related to their immune system.This large prospective cohort study aimed to explore the effects of delivery and feeding mode on infant’s immune response to hepatitis B vaccine(HepB).Methods:A total of 1,254 infants who completed the whole course of HepB immunization and whose parents were both HBsAg negative were enrolled from infants born in Jinchang City during 2018-2019 by cluster sampling method.Results:Twenty(1.59%)of the 1,254 infants were nonresponders to HepB.Among the other 1,234 infants,10.05%(124/1,234),81.69%(1,008/1,234)and 8.27%(102/1,234)of infants had low,medium,and high responses to HepB,respectively.Logistic regression analysis showed that cesarean section(OR:8.58,95%CI:3.11-23.65,p<0.001)and birth weight<3.18 kg(OR:5.58,95%CI:1.89-16.51,p=0.002)were independent risk factors for infant nonresponse to HepB,and cesarean section(OR:7.63,95%CI:4.64-12.56,p<0.001),formula feeding(OR:4.91,95%CI:1.47-16.45,p=0.001),maternal antiHBs negativity(OR:27.2,95%CI:10.67-69.35,p<0.001),paternal non-response history of HepB(OR:7.86,95%CI:2.22-27.82,p=0.014)and birth weight<3.22 kg(OR:4.00,95%CI:2.43-6.59,p<0.001)were independent risk factors for infant low response to HepB.In cases where birth weight and genetic factors are unmodifiable and maternal anti-HBs effects are controversial,it makes sense to enhance infant response by changing delivery and feeding patterns.Conclusions:Natural vaginal delivery and breastfeeding are beneficial to the infant’s immune response to HepB.

Umbilical Cord Prolapse Managed by Assisted Vacuum Delivery

G4P3L3 was at 40 weeks of gestation who was admitted in active stage of labor with normal fetal heart rate. At 8 cm cervical dilatation she experienced spontaneous rupture of membrane with clear liquor. Cord prolapse was detected and was prepared for caesarian section meanwhile she was kept in knee chest position and bladder was filled with normal saline 0.9%. 30 min before operation she was fully dilated with signs of Non reassuring fetal status, vacuum extraction was done to assist delivery as soon as possible. The APGAR score was 6 and 10 in the first and fifth minutes respectively. Mother and the baby were discharged the next day in good condition.

Intravenous Administration of Carbetocin Versus Oxytocin for Preventing Postpartum Hemorrhage After Vaginal Delivery in High Risk Women:A Double-blind,Randomized Controlled Trial

Objective::To compare the effects between carbetocin and oxytocin on reducing postpartum hemorrhage(PPH)after vaginal delivery in high risk pregnant women.Methods::A prospective double-blinded randomized study was conducted in the Nanjing Drum Tower Hospital from March to May 2018.Women at or beyond 28 gestational weeks,cephalic presentation,18-45 years old,and with at least one risk factor for PPH,were enrolled.Using a computer-generated randomization sequence,women were randomized to carbetocin group or oxytocin group which receive 100μg intravenous infusion carbetocin or 10 IU intravenous infusion of oxytocin after anterior shoulder and before placental delivery.The primary outcome was the incidence of blood loss≥500 mL within 24 hours postpartum.The secondary outcomes were amount of total blood loss,blood loss within 2 hours after delivery,the rate of blood loss≥1000 mL postpartum,need for a second-line uterotonics and interventions,blood transfusion,difference between hemoglobin before and 48 hours after delivery,adverse maternal events attributed to the trial medication.Hemodynamic status(blood pressure and pulse)was measured at 0 minutes,30 minutes,60 minutes,and 120 minutes after delivery.Results::A total of 314 and 310 participants constituted the carbetocin and oxytocin groups,respectively.The baseline characteristics were comparable between the groups.The carbetocin group had similar rates of PPH(blood loss≥500 mL)and rates of≥1000 mL PPH,(29.6%vs.26.8%,P=0.48)and(3.2%vs.3.5%,P=0.83),to the oxytocin group.The average amount of bleeding was(422.9±241.4)mL in carbetocin group and(406.0±257.5)mL in oxytocin group,which was no statistically significant difference(P=0.40).Either the amount of blood loss within 2 hours((55.5±33.9)mL vs.(59.9±48.7)mL)was no statistically significant difference(P=0.19).The need for therapeutic uterotonics was 23.9%in carbetocin group and 23.5%in oxytocin group,which was also no statistically difference(P=0.93).The rate of blood transfusion(P=0.62)and hemoglobin change(P=0.07)were not differ between the carbetocin and oxytocin groups.However,the rate of manually removing placenta was significantly different between two groups regarding the need for manually remove of placenta because of uterine bleeding in the third stage of labor(4 cases in carbetocin group vs.13 cases in oxygen group),especially in those after oxytocin-induced or augmented labor(relative risk:3.39,95%confidence interval:1.09-10.52).After delivery,the blood pressure in the carbetocin group tend to be lower than that in the oxytocin group(P>0.05),especially at 30 minutes postpartum(P<0.05),while pulse tend to be simultaneously higher(P>0.05).Conclusion::Among women with high risk of PPH,intravenous carbetocin infusion did not better than oxytocin in the prevention of blood loss≥500 mL after vaginal delivery.

Application of predictive model for vaginal birth after caesarean delivery

Medical practitioners are concerned with the selection of delivery mode after caesarean delivery.Several researchers have developed numerous models for predicting vaginal birth after caesarean delivery.This study selected seven widely used and representative advanced models,such as those of Grobman,Troyer and Parisi,Schoorel,Flamm,Gonen,Weinstain and Smith et al.,analysed the constitutions and clinical applications of the models and identified the factors associated with patients to provide midwives a scientific reference for vaginal delivery evaluation of pregnant women after caesarean delivery.

产程三维导航系统在高龄产妇中的应用及对产程和妊娠结局的影响研究

目的:探讨产程三维导航系统在高龄产妇中的应用及对产程和妊娠结局的影响。方法:选择2020年4月—2021年6月广州市花都区人民医院产科收治的高龄产妇60例为研究对象,按随机数字表法将其分为两组,各30例。所有产妇均拟行阴道分娩,对照组采用传统方法监测,观察组采用产程三维导航系统监测。比较两组产妇胎先露下降情况、产时出血量、产后2 h出血量、阴道分娩者产程时间、新生儿Apgar评分、妊娠结局。结果:观察组胎先露下降情况优于对照组,产时出血量、产后2 h出血量均少于对照组,差异均有统计学意义(P<0.05);两组产钳助产率、新生儿出生1 min Apgar评分比较,差异均无统计学意义(P>0.05);观察组阴道分娩率高于对照组,剖宫产率、新生儿胎儿窘迫和新生儿窒息发生率均低于对照组,差异均有统计学意义(P<0.05);观察组阴道分娩者第一、二产程均短于对照组阴道分娩者,差异均有统计学意义(P<0.05)。结论:产程三维导航系统用于高龄产妇中,能减少产时出血量、产后2 h出血量及动态监测胎先露下降的水平,提高新生儿Apgar评分,能有效提高高龄产妇阴道分娩率,缩短阴道分娩产程,降低剖宫产率、新生儿胎儿窘迫和新生儿窒息发生率。

孕期盆底门诊干预在足月初产妇阴道分娩中的应用效果

目的:探讨孕期实施盆底门诊干预在足月初产妇阴道分娩中的应用效果。方法:将成都市龙泉驿区第一人民医院2021年1月至12月建卡有顺产意愿的单胎初产妇按照建档顺序单双数分组:单数组进行产科门诊常规管理及盆底门诊干预(凯格尔运动联合会阴按摩)200例(研究组),双数组进行常规产科门诊管理200例(对照组),比较两组阴道炎发生率、剖宫产率、阴道分娩率、产科裂伤情况、阴道助产率、会阴切开情况、分娩结局及分娩前及产后42天会阴体、生殖裂孔长度、阴道宽度及其他阴道分娩并发症(尿潴留和产褥期痔)等情况。结果:最终研究组纳入87例,对照组104例。研究组会阴切开率、会阴完整率、阴道助产率、会阴Ⅰ度和Ⅱ度裂伤率、产后出血量均优于对照组(P<0.05),研究组产后42天生殖裂孔长度短于对照组,差异有统计学意义(P<0.05);两组阴道炎发生率、第二产程时间、阴道壁裂伤率、新生儿Apgar评分、新生儿产伤率、尿潴留和产褥期痔、产后阴道宽度及会阴体长度比较,差异无统计学意义(P>0.05)。结论:孕期实施盆底门诊干预可在一定程度上减轻足月初产妇经阴道分娩造成的伤害,并且未增加新生儿分娩并发症,值得临床推广。

阴道宫颈环扎术对双胎妊娠宫颈机能不全患者疗效及妊娠结局的影响

目的 分析阴道宫颈环扎术对双胎妊娠宫颈机能不全患者疗效及妊娠结局的影响。方法 选取90例使用辅助生殖技术(ART)的双胎妊娠宫颈机能不全患者,将患者出生日期作为分组基础,应用随机数字分组模式分为观察组和对照组,每组45例。对照组采用传统保胎治疗模式干预,观察组采用阴道宫颈环扎术治疗模式干预。对比两组分娩孕周、实际延长时间、新生儿出生体质量、新生儿Apgar评分、新生儿不良预后情况及不良妊娠结局发生率。结果 对照组分娩孕周为(34.09±2.17)周,实际延长时间为(36.47±3.71)d;观察组分娩孕周为(37.50±1.93)周,实际延长时间为(39.12±2.99)d。观察组分娩孕周、实际延长时间均长于对照组(P<0.05)。对照组新生儿出生体质量为(2231.61±361.60)g,新生儿Apgar评分为(7.91±0.62)分;观察组新生儿出生体质量为(2921.59±861.22)g,新生儿Apgar评分为(8.94±0.84)分。观察组新生儿出生体质量、新生儿Apgar评分大于对照组(P<0.05)。对照组新生儿出现呼吸窘迫综合征7例、缺氧缺血性脑病4例、死亡0例,观察组新生儿出现呼吸窘迫综合征1例、缺氧缺血性脑病0例、死亡0例。观察组新生儿不良预后发生率1.11%低于对照组的12.22%(P<0.05)。两组不良妊娠结局发生率比较无明显差异(P>0.05)。结论 在对ART的双胎妊娠宫颈机能不全患者治疗过程中,灵活地将阴道宫颈环扎术应用于实际治疗中,能够取得更为确切的治疗效果,在保障患者自身安全及预后的情况下,最大程度地改善新生儿的状态,可在今后的治疗中将此类方式推广并加以应用,进而保障患者健康。

胎儿体质量估计对初产妇巨大儿分娩方式及围产结局的临床观察

目的观察胎儿体质量估计对初产妇巨大儿的分娩方式和围产结局的影响。方法选取2022年1月至2023年12月北京市海淀区妇幼保健院分娩的足月单胎初产妇206例,根据估计体质量分为甲组(估计胎儿体质量<4000 g,118例)和乙组(估计胎儿体质量≥4000 g,88例)。比较两组产妇及新生儿的分娩方式和分娩结局等。结果206例初产妇年龄21~39岁,平均(30.6±3.4)岁。与乙组相比,甲组阴道分娩比例较高(61.9%比40.9%)、剖宫产比例较低(32.2%比56.8%),两组分娩方式的差异有统计学意义(P<0.05)。甲组试产率明显高于乙组(90.7%比59.1%),差异有统计学意义(P<0.05)。甲组产后出血量(容积法)和校正产后出血量均高于乙组[350(300,500)ml比300(300,380)ml,440(230,720)ml比360(160,560)ml],差异有统计学意义(P<0.05)。两组胎儿窘迫、肩难产、新生儿窒息比例的差异无统计学意义(P>0.05)。结论低估胎儿体质量可增加初产妇巨大儿试产率及阴道分娩率,也增加了产后出血量,但并未增加胎儿窘迫、肩难产、新生儿窒息等分娩并发症。建议胎儿估计体质量<4500 g且有阴道分娩意愿的产妇,应该在充分告知的情况下,增加试产机会。

The Incidence and Risk Factors of Third- and Fourth-Degree Perineal Tears in Ministry of Health in Bahrain over 5 Years

Background: Perineal trauma and vaginal laceration are considered a common complication associated with vaginal delivery. Well established risk factors, recognized by the Royal College of Obstetricians and Gynecologists, are ethnicity, birth weight over 4 kg persistent occipital posterior position, null parity, induction of labor, shoulder dystocia, instrumental delivery. There are other risk factors that were suggested in the literature, but data are conflicting, such as prolonged second stage of labor, episiotomy and obesity. Objective: To evaluate third- and fourth-degree perineal rears rates and the impact of related risk factors on perineal tears in Ministry of health in Bahrain over 5 years (which includes Salmanyia Medical complex (SMC) and Jidhafs maternity hospital (JMH)). Methods: This retrospective descriptive cross-sectional study analyzed all vaginal deliveries from January 2015 to December 2019 in Obstetrics and Gynecology department in Salmanyia Medical Complex (the main hospital in Kingdom of Bahrain which received all kinds of cases including low and high risks) and Jidhafs Maternity Hospital (tertiary hospital which received only low risk cases), Kingdom of Bahrain. During the period of interest 33,694 records were identified. Data were extracted from observational recording from SMC and JMH labour registry books. Results: There was no statistically significant difference between groups according to age (p = 0.199). On the other hand, there was statistically significant higher cases of >40 weeks at gestational age, obesity > 35 kg/mr, vacuum delivery, pushing stage > 90 min, birth weight > 4 kg, head circumference > 34 cm, fetal length at birth > 50 cm, episiotomy and lower cases of nulliparity in study group compared to control group 16 (66.7%) vs. 13,805 (41.0%), 3 (12.5%) vs. 1448 (4.3%), 3 (12.5%) vs. 1414 (4.2%), 4 (16.7%) vs. 1751 (5.2%), 3 (12.5%) vs. 1751 (5.2%), 12 (50.0%) vs. 15,926 (47.3%), 15 (62.5%) vs. 20,135 (59.8%) and 17 (70.8%) vs. 29,024 (86.2%);(p = 0.027, 0.009, Conclusion: Gestational age > 40 weeks, obesity > 35 kg/mr, pushing stage > 90 min, birth weight > 4 kg, head circumference > 34 cm, fetal length at birth > 50 cm and using of vacuum increase incidence of 3rd and 4th degree perineal tears with vaginal delivery however maternal age and nulliparity have no significant role. Finally, episiotomy did not represent as protective factor for perineal damage. .

经会阴盆底二维超声联合脱垂定量分期用于顺产后POP患者SUI诊断的临床效能

目的:探讨经会阴盆底二维超声联合脱垂定量分期在顺产后盆腔器官脱垂(POP)患者压力性尿失禁(SUI)发生风险预测中的临床效能,为SUI发生高危人群早期识别及防治方案制定提供更多参考。方法:回顾性选择2021年1月—2023年1月于湖北医药学院附属十堰市太和医院就诊的160例顺产后POP患者,根据有无合并SUI分为SUI组(n=85)和非SUI组(n=75)。比较两组会阴盆底二维超声检查指标及脱垂定量分期法指标,描绘受试者工作特征(ROC)曲线分析经会阴盆底二维超声、脱垂定量分期指标单独及联合用于预测顺产后POP患者SUI发生的临床效能。结果:SUI组膀胱后壁最低点降低值、尿道旋转角、Aa和Ba均显著高于非SUI组,差异有统计学意义(P<0.05);ROC曲线结果显示,Aa、Ba、膀胱后壁最低点降低值及尿道旋转角联合预测顺产后POP患者SUI发生的曲线下面积(AUC)为0.89,高于四者单独预测的0.70、0.73、0.74、0.78。结论:经会阴盆底二维超声及脱垂定量分期均可用于顺产后POP患者SUI发生风险预测,同时两类指标联合检测具有更好的预测效能。