目的 探讨子宫瘢痕的超声弹性成像结合厚度分析对剖宫产后再妊娠产妇子宫破裂的预测应用。方法 选择2020年1月—2021年12月在中山市中医院分娩的剖宫产术后再次妊娠经阴道分娩（VBAC）产妇作为研究对象。根据纳入和排除标准,共纳入子宫破裂的VBAC产妇32例、非子宫破裂的VBAC产妇90例。通过住院病历信息系统查询研究对象的基本信息及其在妊娠晚期（≥37周）用B超对研究对象行子宫瘢痕厚度和弹性的测量结果,采用受试者工作特征曲线（ROC）曲线分析子宫瘢痕厚度和弹性SI值对子宫破裂的预测作用。结果 子宫破裂组中年龄>35岁、妊娠>2次、与上次剖宫产间隔<2年、新生儿体质量≥3 kg、单层缝合者的比例高于非子宫破裂组（P<0.05）。122例产妇子宫瘢痕厚度的均值为（3.42±0.49）mm,SI的均值为（2.57±0.45）。ROC曲线分析结果显示：子宫瘢痕厚度单独预测子宫破裂的曲线下面积（AUC）为0.805（95%CI：0.730~0.880,P<0.05）,cut off值为3.05 mm,灵敏度为0.726,特异度为0.910,约登指数为0.636;子宫瘢痕SI单独预测子宫破裂的AUC为0.730（95%CI：0.635~0.824,P<0.05）,cut off值为2.11,灵敏度为0.767,特异度为0.781,约登指数为0.548;子宫瘢痕厚度联合预测子宫破裂的AUC为0.874（95%CI：0.812~0.937,P<0.01）,灵敏度为0.875,特异度为0.811,约登指数为0.686。子宫瘢痕厚度结合子宫瘢痕SI值预测子宫破裂的AUC高于单独使用子宫瘢痕厚度（Z=7.611,P=0.041）和子宫瘢痕SI值（Z=25.864,P=0.025）。结论 子宫瘢痕的超声弹性成像SI值联合子宫厚度可有效提高超声对于VBAC产妇子宫破裂的预测效能,具有一定的应用意义。

Objective To study the application of ultrasound elasticity imaging combined thickness analysis of uterine scar in predicting uterine rupture in women pregnant after cesarean section．Methods Pregnant women with vaginal birth after cesarean（VBAC）from January 2020 to December 2021 in Zhongshan Hospital of Traditional Chinese Medicine were selected as the research subjects．A total of 32 VBAC parturients with uterine rupture and 90 VBAC parturients without uterine rupture were included according to the inclusion and exclusion criteria．The basic information of the subjects was queried through the medical record information system of the hospital．In the third trimester（≥37 weeks）,the thickness and elasticity of uterine scar were measured by ultrasound,and the predictive effect of uterine scar thickness and elastic SI value on uterine rupture was analyzed by ROC curve．Results Chi-square test showed that the incidence of uterine rupture was higher in patients with age>35 years,pregnancy>2 times,interval from last cesarean section<2 years,newborn weight≥3kg,and the proportion of uterine rupture in single suture was higher than that in double suture（P<0.05）．The mean uterine scar thickness of 122 subjects was（3.42±0.49）mm,and the mean SI was（2.57±0.45）．The area under curve（AUC）of uterine scar thickness alone for predicting uterine rupture was 0.805（95%CI：0.730-0.880,P<0.05）,the cut off value was 3.05 mm,the sensitivity was 0.726,the specificity was 0.910,and the Youden coefficient was 0.636 by ROC curve analysis．The AUC of uterine scar SI alone for predicting uterine rupture was 0.730（95%CI：0.635-0.824,P<0.05）,the cut off value was 2.11,the sensitivity was 0.767,the specificity was 0.781,and the Youden coefficient was 0.548 by ROC curve analysis．The AUC of uterine scar thickness combination for predicting uterine rupture was 0.874（95%CI：0.812-0.937,P<0.01）,the sensitivity was 0.875,the specificity was 0.811,and the Youden coefficient was 0.686 by ROC curve analysis．The AUC predicted by uterine scar thickness combined with uterine scar SI value was higher than that predicted by uterine scar thickness alone（Z=7.611,P=0.041）and uterine scar SI value（Z=25.864,P=0.025）．Conclusions Elastic SI value of ultrasound imaging of uterine scar combined with uterine thickness can effectively improve the prediction efficiency of ultrasound for VBAC maternal uterine rupture,which has certain application significance,but further demonstration is still needed．

目的 探讨剖宫产围术期患者采用布托啡诺治疗寒战的最佳剂量。方法 选取2019年10月—2020年11月期间于本院分娩的150例剖宫产妇女作为研究对象,按照随机数字表法分为A组、B组、C组,各组50例。A组给予0.01 mg/kg布托啡诺静脉注射,B组给予0.02 mg/kg,C组给予0.03 mg/kg。比较3组临床疗效、血流动力学、镇静(Ramesay)评分、不良反应、新生儿Apgar评分。结果 3组治疗有效率、 血流动力学、T₁、T₂时间段Ramesay评分及1 min、5 min、10 min 新生儿Apgar评分比较,差异无统计学意义(P＞0.05);C组不良反应发生率高于B组与A组(P＜0.05);T₃时间段Ramesay评分C组＜B组＜A组(P＜0.05)。结论 0.02 mg/kg剂量布托啡诺治疗剖宫产围术期寒战效果最为理想,产妇围术期血流动力学稳定,不良反应较轻,且对新生儿无明显影响。

Objective To investigate the optimal dose of butorphanol in the treatment of shivering in patients underwent cesarean section. Methods A total of 150 women with cesarean section in our hospital from October 2019 to November 2020 were selected as the research objects, and were divided into group A, group B and group C according to random number table method, with 50 cases in each group. Group A was given 0.01 mg/kg butorphanol intravenously, group B was given 0.02 mg/kg, and group C was given 0.03 mg/kg. Clinical efficacy, hemodynamics, sedation (Ramesay) scores, adverse drug reactions (ADR) and neonatal Apgar scores were compared among the three groups. Results There were no significant differences in effective rate, hemodynamics, Ramesay scores at T₁ and T₂ time periods and Apgar scores of neonates at 1 min, 5 min and 10 min among the three groups (P>0.05). The incidence of ADR in group C was higher than that in group B and A (P<0.05). Ramesay score at time of T₃ of group C was lower than group B and group A (P<0.05). Conclusion The 0.02 mg/kg dose of butorphanol in the treatment of perioperative shivering in cesarean section was the most ideal dose, perioperative hemodynamics of puerpera was stable, adverse reactions were mild, and there was no obvious influence on neonates.

目的 回顾分析我医院近9年产妇行剖宫产术治疗的患者的住院病历资料,探索术后出现切口脂肪液化的危险因素。方法 选取我医院2011年1月—2019年8月期间行剖宫产术治疗的产妇患者1 018例,分成术后切口脂肪液化组和甲级愈合组,比较2组间的差异,分析其相关危险因素。结果 1 018例产妇患者中出现切口脂肪液化的为34例,发生率为3.34%(34/1 018);单因素分析结果显示,糖尿病、体质指数超重、7 cm以上切口长度是术后出现切口脂肪液化的相关因素,差异有统计学意义;多因素Logistic回归分析结果显示,糖尿病、体质指数超重、7 cm以上切口长度是术后出现切口脂肪液化的独立危险因素。结论 产妇患者行剖宫产术治疗出现切口脂肪液化率较高;围手术期控制患者血糖,以及孕期控制体质指数、缩小剖宫产手术切口长度可能有效地减少切口脂肪液化发生率。

Objective To retrospectively analyze the medical records of patients undergoing cesarean section in our hospital in recent 9 years, and explore the risk factors of incision fat liquefaction after operation. Methods 1 018 patients undergoing cesarean section in our hospital from January 2011 to August 2019 were divided into two groups: incision fat liquefaction group and grade A healing group. The differences between the two groups were compared and the risk factors were analyzed. Results Among 1 018 parturients, 34 had incision fat liquefaction, and the incidence was 3.34% (34/1018). Univariate analysis showed that diabetes mellitus, overweight body mass index and incision length of more than 7 cm were risk factors for incision fat liquefaction after operation, and the difference was statistically significant. Multivariate logistic regression analysis showed that diabetes mellitus, overweight body mass index and incision length over 7 cm were independent risk factors for incision fat liquefaction. Conclusion The incision fat liquefaction rate is higher in patients undergoing cesarean section. Controlling blood sugar level, body mass index during pregnancy and shortening the length of incision during perioperative period may effectively reduce the incidence of incision fat liquefaction.

目的 探讨蛛网膜下腔注射布比卡因与舒芬太尼预防剖宫产术中寒战效果的影响。方法 选取我院拟行剖宫产手术的产妇158例随机分为对照组(n=79)和观察组(n=79),两组均行蛛网膜下腔注射麻醉下的剖宫产术,对照组给予麻药为质量浓度为5 g/L的布比卡因,观察组为质量浓度为5 g/L的布比卡因+小剂量舒芬太尼,观察两组术中预防寒战效果。结果 观察组寒战发生率(16.64%)低于对照组(39.25%)(P<0.05);MAP、HR组内各时间点间有差异(P<0.05),组间同时间点比较无差异(P>0.05);观察组牵拉痛程度轻于对照组(P>0.05);两组新生儿1min Apgar评分和5min Apgar评分无差异(P>0.05);观察组产妇不良反应发生率为6.33%,与对照组的12.66%比较,无差异(P>0.05)。结论 剖宫产术进行蛛网膜下腔注射布比卡因和舒芬太尼,对预防产妇术中寒战的效果的具有积极影响。

目的 研究二次剖宫产后续妊娠的分娩方式。方法 选取广州市妇女儿童医疗中心2015年8月1日—2017年12月31日的第三次及以上妊娠孕妇资料,要求前两次均为剖宫产,本次妊娠为头位单胎。分析本次妊娠相关因素及最终分娩方式、妊娠结局及围产儿情况。结果 二次剖宫产后阴道分娩与急诊、择期剖宫产相比,三组子宫破裂、新生儿窒息等的发生率差异无统计学意义。成功阴道分娩者本次均为自然临产。结论 二次剖宫产后,第三次妊娠分娩方式的选择包括顺产及剖宫产,在妊娠结局、母儿并发症方面差异无统计学意义,有阴道试产史是成功阴道分娩的有利因素。孕妇尤其是自然临产孕妇可在严密监护下选择阴道试产。

Objective To study the delivery mode after two previous cesareans. Methods We selected pregnant women, single cephalic, following two previous cesareans in Guangzhou Women and Children Medical Center, from August 1, 2015 to December 31, 2017. Analysis of this pregnancy related factors and final delivery mode, the maternal and fetal morbidities were studied. Results There wasn't statistical significance in the incidence of uterine rupture, neonatal asphyxia among vaginal birth after two previous cesareans, selected cesarean section and emergency cesarean section. And the success cases of vaginal delivery are natural labor. Conclusion The delivery modes after two previous cesareans include vaginal delivery and cesarean section. There are no statistical significance in pregnancy outcomes. Vaginal trial history are the favorable factors of successful vaginal delivery. Especially in pregnant women with natural vaginal labor we can choose vaginal delievery under intensive care.

目的 比较不同浓度罗哌卡因横纹肌阻滞应用于剖宫产术后镇痛的临床效果。方法 选取2015年3月—2016年3月于我院剖宫产的孕妇300例,随机分为A组、B组、C组,每组100例,A组产妇给予质量浓度为1.5 g/L的罗哌卡因1.5 mg/kg,B组产妇给予质量浓度为2 g/L的罗哌卡因1.5 mg/kg,C组产妇给予质量浓度为2.5 g/L的罗哌卡因1.5 mg/kg,同时给予所有产妇镇痛泵辅助镇痛。记录观察所有产妇术后6 h、12 h、24 h、36 h、48 h的疼痛视觉模拟评分(VAS)、镇痛泵按压次数、产妇对镇痛效果的满意程度以及腹横肌平面阻滞(TAP)不良反应发生情况。结果 B、C组产妇的VAS评分均低于A组产妇(P＜0.05),24 h后C组产妇的VAS评分低于B组产妇(P＜0.05);与B、C组产妇相比,A组产妇的镇痛泵按压次数更多,镇痛效果满意度较低(P＜0.05),同时B组产妇的镇痛泵按压次数多于C组产妇(P＜0.05);3组产妇均未出现术后不良反应。结论 使用质量浓度为2.5 g/L的罗哌卡因横纹肌阻滞进行剖宫产术后镇痛,效果显著、安全性较高,临床中可推广使用。

Objective To compare the clinical effects of different concentrations of ropivacaine for postoperative analgesia after cesarean section. Methods 300 cases of pregnant women undergoing cesarean section in our hospital from March 2015 to March 2016 were selected and were randomly divided into group A, group B and group C with 100 cases in each group. The patients in group A were given 0.15% ropivacaine 1.5 mg/kg, 0.20% ropivacaine 1.5 mg/kg in group B and 0.25% ropivacaine 1.5 mg/kg in group C, and at the same time all the pregnant women were given analgesic pump assisting analgesia. The pain visual analogue scales (VAS) of the pregnant women were recorded at 6 hours, 12 hours, 24 hours and 36 hours after cesarean section and the number of times of analgesia pressing pump were also recorded. The satisfaction degree of analgesic effect and the TAP occurrence of adverse reactions of the patients were also recorded. Results The VAS scores of group B and group C were lower than that of group A(P<0.05). 24 hours after cesarean section, the VAS score of group C was lower than that of group B (P<0.05). Compared with group B and C, the number of times of analgesia pressing pump in group A were more but the analgesic effect of satisfaction was lower (P<0.05), and at the same time the number of times of analgesia pressing pump in group B were more than those in group C (P<0.05). No adverse reactions were found in the three groups. Conclusion The treatment of using of 0.25% of ropivacaine for muscle block for postoperative analgesia after cesarean section is effective and safe, which may be widely used in clinical practice.

       目的   探讨剖宫产后再次分娩阴道试产失败的影响因素。方法   选取2021年5月—2024年5月在枣庄市妇幼保健院分娩的138例有剖宫产手术史的足月妊娠产妇进行回顾性分析。所有产妇依照其阴道试产结果将成功阴道分娩的35例产妇分为成功组，将阴道试产失败中转剖宫产的103例产妇分为失败组。对比两组产妇的妊娠结局、孕期情况及围产期情况，最后采用多因素Logistic回归分析法分析剖宫产后再次分娩阴道试产失败的影响因素。结果   两组产妇子宫破裂、胎儿窘迫、产褥感染及产后出血等妊娠不良结局总发生率对比差异无统计学意义（11.43% vs 6.80%，χ ² =0.760，P=0.382 ＞0.05）；通过对比两组产妇孕期情况发现，失败组与成功组孕妇年龄、孕次、身高、孕前体质量、妊娠期合并症、分娩前体质量指数（BMI）比较差异无统计学意义（P＞0.05），失败组与成功组孕妇孕期体质量增长［（4.56±2.56）kg vs（12.45±3.24）kg］、分娩孕周［（39.46±1.25）周 vs（37.95±1.37）周］、阴道分娩史（8.57% vs 26.21%）、妊娠间隔时间［（2.74±0.35）年 vs（3.37±0.57）年］及瘢痕厚度［（4.51±0.56）mm vs（5.42±0.38）mm］，对比差异有统计学意义（t=3.497，P＜0.001；t=5.755，P＜0.001；χ ² =4.780，P=0.029；t=6.148，P＜0.001；t=10.764，P＜0.001）；通过对比两组产妇围产期情况发现，失败组与成功组新生儿性别、是否镇痛比例比较差异无统计学意义（P＞0.05），失败组与成功组孕妇产前新生儿估重［（3352.31±153.67）g vs（3046.25±141.68）g］、是否引产［60.00% vs 52.43%］、胎膜早破［11.43% vs 35.92%］、入院时是否临产［857% vs 27.18%］，对比差异有统计学意义（t=10.805，P＜0.001；χ ² =7.330，P=0.007；χ ² =7.500，P=0.006；χ ² =5.200，P=0.023）；以阴道试产情况作为因变量（失败=1，成功=0）纳入Logistic回归模型，结果显示，分娩孕周过晚、产前新生儿估重过高、引产及入院时未临产为剖宫产后再次分娩阴道试产失败的影响因素（P＜0.05）。结论   分娩孕周过高、产前新生儿估重过高、引产及入院时未临产为剖宫产后再次分娩阴道试产失败的独立影响因素，需针对分娩孕周、产前新生儿估重过高的剖宫产后再次分娩阴道试产产妇给予高度关注并采取相应措施进行干预，同时自然临产能够降低阴道试产失败风险，但针对具有引产指征的产妇，依然需要及时引产。

       Objective   To explore the influencing factors of vaginal trial delivery failure after cesarean section．Methods   A retrospective analysis was conducted on 138 full-term pregnant women with a history of cesarean section who gave birth in our hospital from May 2021 to May 2024．All women were divided into two groups according to the  results of their vaginal trial delivery．Based on their vaginal trial results，35 parturients who successfully delivered were divided into the successful group，and 103 parturients who failed vaginal trial delivery and transitioned to cesarean section were divided into the failed group．The pregnancy outcomes of postpartum women and the pregnancy and perinatal conditions were compared between the two groups，and multivariate Logistic  regression analysis was used to analyze the independent influencing factors of vaginal trial delivery failure after cesarean section．Results   There was no significant difference in the total incidence of adverse pregnancy outcomes such as uterine rupture，fetal distress，postpartum infection，and postpartum hemorrhage between the two groups of parturients （P＞0.05）．By comparing the pregnancy status of two groups of  pregnant women，it was found that there was no difference （P＞0.05）．The average weight gain during pregnancy of failure and successful group，gestational age，cases with vaginal delivery history，intervalbetween pregnancy and scar thickness，the contrast difference was significant （all P＜0.05） ．By comparing the perinatal situation of the two groups，there was no difference in the sex of fetus and analgesia receiving of parturients between the failed group and the successful group （P＞0.05），while there is difference in weight estimation，whether induced labour，premature  rupture of fetal membrane，whether admitted to hospital （all P＜0.05）．Vaginal trial delivery was set as the dependent variable （failure=1，success=0） and it was incorporated into the Logistic regression model．The results showed that high gestational age during delivery，high estimated weight of fetus before delivery，induction of labor，and non-labor upon admission were independent influencing factors for vaginal trial delivery failure after cesarean section （P＜0.05）．Conclusions  Excessive gestational age，high estimated weight of fetus before delivery，induced labor，and non-labor upon admission were independent influencing factors for the failure of vaginal trial delivery after cesarean section．It is necessary to pay high attention and take corresponding measures to intervene in women who have undergone vaginal trial delivery after cesarean section due to excessive gestational age and high estimated weight of fetus before delivery．At the same time，spontaneous labour can reduce the risk of vaginal trial delivery failure．However，for women with indications for induced labor，timely induction is still necessary．