Balloon displacement during caesarean section with pernicious placenta previa: A case report

BACKGROUND For the past few years,preventive interventional therapy has been widely used domestically and overseas,bringing great benefits to pregnant women at high-risk for complications,such as pernicious placenta previa(PPP)and placenta accreta.Nevertheless,there are still few reports on surgical complications related to interventional therapy,and its safety should be a concern.CASE SUMMARY We report a 36-year-old pregnant woman with PPP who underwent balloon implantation in the lower segment of the abdominal aorta before caesarean section.However,the balloon shifted during the operation,which damaged the arterial vessels after filling,resulting in severe postpartum haemorrhage in the patient.Fortunately,after emergency interventional stent implantation,the pa-tient was successfully relieved of the massive haemorrhage crisis.CONCLUSION It seems that massive postoperative bleeding has been largely avoided in preventive interventional therapy in high-risk pregnant women with placenta-related diseases,but surgical complications related to intervention therapy can also cause adverse consequences.It is equally important for clinical doctors to learn how to promptly identify and effectively treat these rare complications.

Effect of Hemabate combined with packing therapy on the systemic stress response in patients with postpartum hemorrhage after placenta previa cesarean section

Objective:To discuss the effect of Hemabate combined with packing therapy on the systemic stress response in patients with postpartum hemorrhage after placenta previa cesarean section. Methods:70 patients with postpartum hemorrhage after placenta previa cesarean section who were treated in Chengdu Women & Children's Central Hospital between January 2014 and February 2017 were collected and then divided into the control group (n=35) who received uterine packing therapy and the observation group (n=35) who received Hemabate combined with packing therapy according to random number table. Serum levels of oxidative stress indexes and stress hormones immediately after operation and 24 h after operation were compared between two groups of patients.Results: Immediately after operation and 24 h after operation, serum oxidative stress indexes ROS and MDA levels of observation group were significantly lower than those of control group while SOD, GSH-px and CAT levels were significantly higher than those of control group, and serum stress hormones NE, E and Cor levels were significantly lower than those of control group.Conclusion: Hemabate combined with packing therapy can effectively reduce systemic stress response in patients with postpartum hemorrhage after placenta previa cesarean section, is a more ideal way of the bleeding.

Evaluation of “J”-shaped Uterine Incision during Caesarean Section in Patients with Placenta Previa:A Retrospective Study

This study evaluated the efficacy and safety of ＂J＂-shaped uterine incision for caesarean section for patients diagnosed with placenta previa. A total of 55 consecutive cases of placenta previa treated in Union Hospital were retrospectively analyzed over a period of two years and 10 months. The subjects were divided into two groups with respect to the uterine incision. Twenty-four pregnant women with placenta previa who were indicated for caesarean section underwent the procedure using a new ＂J＂-shaped uterine incision and 31 pregnant women with placenta previa received caesarean section that used the traditional transverse incision. The two groups were compared in terms of operation time, estimated blood loss, infant expulsion time, exhaust time and postoperative recovery. Meanwhile, comparison was also made in neonatal clinical data between the two groups. Compared with the ＂J＂-shaped incision group, the traditional incision group had a lower Apgar scores （P〈0.05）. However, there existed no statistically significant differences in the overall time of operation and postoperative period of breaking wind （P〉0.05）. It is concluded that, with caesarean section for placenta previa patients, the ＂J＂-shaped uterine incision significantly decreases intraoperative blood loss and facilitates the fetal delivery.

Clinical Analysis of Placenta Previa Complicated with Previous Caesarean Section

Objective To investigate the clinical features and treatment of placenta previa complicated with previous caesarean section. Methods The clinical data of 29 patients with placenta previa complicated with a previous caesarean section (RCS group) admitted in Peking Union Medical College Hospital during a period from 2003 to 2011 were retrospectively reviewed and compared with those of 243 patients with placenta previa without a previous caesarean section (FCS group) during the same period. Results There was no difference in the mean age (28.9±3.6 vs. 28.1±4.5 years) and the average gravidity (2.35±1.48 vs. 2.21±1.53) between RCS group and FCS group (all P>0.05). The RCS group had more preterm births (24.1% vs. 13.2%), complete placenta previa (55.2% vs. 4.9%), placenta accreta (34.5% vs. 2.5%), more blood loss during caesarean section (1412±602 vs. 648±265 mL), blood transfusion (51.7% vs. 4.9%), disseminated intravascular coagulation (13.8% vs. 2.1%), and obstetric hysterectomy (13.8% vs. 0.8%) than the FCS group (all P<0.05). The preterm infant rate (30.0% vs. 13.0%), neonatal asphyxia rate (10.0% vs. 4.9%), and perinatal mortality rate (6.7% vs. 0.4%) of the RCS group were higher than those of the FCS group (all P<0.05). Conclusions More patients had complete placenta previa and placenta accreta, postpartum hemorrhage, transfusion, uterine packing, obstetric hysterectomy, and perinatal morbidity in the placenta previa patients with previous caesarean section. The patient should be informed of the risk and unnecessary first cesarean sections should be avoided.

Clinical Analysis on the Effectiveness of Conservative Compression Suture Technique to Conserve Fertility on Pernicious Placenta Previa

Objective: To evaluate the effectiveness of conservative compression surgical suture techniques used for the management of pernicious placenta previa to conserve fertility in the subsequent pregnancies. Study Design: This was a non-comparative retrospective study of 188 patients diagnosed with pernicious placenta previa who underwent cesarean section in The First Hospital of Jilin University, China, from 1 January 2013 to 1 January 2018. Successful group was defined as those in which the intraoperative bleeding was managed by either modified CHO or by B-lynch suture technique and those who had further intervention including hysterectomy were designated as failure group. Results: Out of 217 patients, 188 met inclusion criteria and 29 patients were excluded. In 188 cases, 183 (97.34%) cases successes and 5 (2.65%) cases had hysterectomy. Among included group, 118 patients (62.76%) had undergone emergency cesarean section and 70 patients (37.23%) underwent elective cesarean section. The emergency group had significantly lesser gestation period of gestation at the time of cesarean section (P = 0.021) and lower neonatal weight (P = 0.001) than that of elective group. The estimated blood loss during surgery was 500 - 3200 ml (mean: 925 ml). Additionally, the amount of bleeding was found to be significantly more in patient with intraoperative complication (P = 0.007) and in patient with implanted placenta (P 0.001). Conclusion: The conservative compression suture technique including modified CHO and B-lynch suture technique during the cesarean delivery is a feasible, safe and effective alternative conservative surgical technique for the management of bleeding in case of pernicious placenta previa. Besides good surgical outcome and proper neonatal result this technique also reduces the rate of hysterectomy, thus conserving the fertility.

Frequency of Placenta Previa and Maternal Morbidity Associated with Previous Cesarean Delivery

Background: Placenta previa (P.P) is a rare pregnancy complication where a placenta particularly or completely covers the internal cervical os thereby preventing normal vaginal delivery. This study was conducted to evaluate the relationship between repeated cesarean deliveries and subsequent development of placenta previa. Methods & Materials: This cross-sectional study was held in Imam Reza Hospital Kermanshah-Iran during 2008-2011. This study included all pregnant women with repeated cesarean sections while nullipara and patients with placenta previa without previous surgery were excluded. Diagnosis was made on ultrasound and at surgery. Results: among 2696 Women, 98 cases had P.P (3.63%). The mean age was 30 years, 76.5% (75 cases) had gravidity 2 and 3 and 87.8% (86 cases) had parity 1 - 3. Anterior location of placenta was 44.9% while posterior was 55.1%. 48% were complete P.P, 32.7% low lying P.P, 13.3% marginal P.P, and 6% Partial P.P. 26.5% of patients had history of abortion. 55.1% of patients had male fetus. There was an increase in frequency of placenta previa with just one previous C-section (74.5%). Frequency of accreta P.P 32% (n = 7), increta (14.3%, n = 3) and percreta 28% (n = 6). Among those who underwent emergency hysterectomy (21 cases) 23.8% cases had no abnormal placentation. 30.6% of newborns had birth weight < 2500 g. Conclusion: we concluded that patients with history of one pervious cesarean delivery had more Placenta previa and need to hysterectomy were more than those with history of 2 and 3 previous cesarean delivery. The most common type of abnormal placentation was accreta, percreta and increta respectively.

A Seven-Step Approach to Control Severe Hemorrhage in Cesarean Delivery with the Placenta Accreta Spectrum Disorders Avoiding Hysterectomy

Objectives: To describe a novel procedure to treat hemorrhage of placenta accreta spectrum disorders (PAS) or cesarean-scar pregnancy (CSP). Methods: This was a retrospective study of women under cesarean delivery with PAS or placenta previa. Patients’ information was acquired from hospital records. A novel procedure of surgery is developed with seven major steps, including avoiding placenta incised, elevating upward the uterine, clamping the uterine arteries with sponge forceps, removing the placenta, opening the vesicouterine space and suture techniques. Results: A total of 38 patients were reviewed. Twenty-one patients diagnosed with placenta accrete syndrome and 3 patients with CSP were underwent surgery with the novel procedure of surgery and all severe hemorrhage was controlled without hysterectomy. There were 2 women with bladder injuries needing primary repair. Fourteen patients with placenta previa underwent cesarean delivery and there was no intraoperative complication of the total 14 patients. Conclusion: The seven-step approach is more secure and effective to control severe hemorrhage without other invasive procedures in cesarean delivery with PAS. It is technically easier to maintain and improve surgical skills.

Relationship between Placenta Location and Resolution of Second Trimester Placenta Previa

This prospective study was conducted to assess the rate of resolution of second trimester placenta previa in women with anterior placenta and posterior placenta, and that in women with and without previous cesarean section. In this study, placenta previa was defined as a placenta lying within 20 mm of the internal cervical os or overlapping it. We recruited 183 women diagnosed with previa between 20+0 weeks and 25+6 weeks. They were grouped according to their placenta location(anterior or posterior) and history of cesarean section. Comparative analysis was performed on demographic data, resolution rate of previa and pregnancy outcomes between anterior group and posterior group, and on those between cesarean section group and non-cesarean section group. Women with an anterior placenta tended to be advanced in parity(P=0.040) and have increased number of dilatation and curettage(P=0.044). The women in cesarean section group were significantly older(P=0.000) and had more parity(P=0.000), gravidity(P=0.000), and dilatation and curettage(P=0.048) than in non-cesarean section group. Resolution of previa at delivery occurred in 87.43% women in this study. Women with a posterior placenta had a higher rate of resolution(P=0.030), while history of cesarean section made no difference. Gestational age at resolution was earlier in posterior group(P=0.002) and non-cesarean section group(P=0.008) than in anterior group and cesarean section group correspondingly. Placenta location and prior cesarean section did not influence obstetric outcomes and neonatal outcomes. This study indicates that it is more likely to have subsequent resolution of the previa when the placenta is posteriorly located for women who are diagnosed with placenta previa in the second trimester.

Clinical analysis of 322 cases of placenta previa

In recent years, the incidence of placenta previa has been increasing. According to the literature, it is mainly related to induced labor, artificial abortion, cesarean section, high aging pregnancy, multipara or smoking. The placenta previa is the chief cause of bleeding in late pregnancy and threatens the lives of mother and infant, resulting in a high risk problem in obstetrics. This article studies 322 cases of placenta previa from my hospital and Dalian Obstetrics and Gynecological Hospital from January, 2002 to July, 2009, on the basis of clinicretrospective analysis, in order to deepen our understanding and art of treating placenta previa. The study revealed that: 1. With 322 cases of placenta previa, the incidence was 0.73%. It was higher than the incidence 0.3% reported abroad and lower than the incidence 0.94% reported in our country. The data were from sampling survey and did not prove relations between placenta previa and ages, different from the result obtained abroad in which placenta previa had relation with pregnancy ages. The outcome needs further study. But artificial abortion, induced labor, cesarean section and multipara clearly influence the incidence. The study did not analyze the relation between smoking and placenta previa, but there was external data proving that smoking was related to placenta previa; 2. Ultrasound-B is a better method for examination at present; 3. In cases of vaginal childbirth there was a higher incidence of lateral placenta previa and partial placenta previa. The conservative temporization and timely cesarean section can greatly decrease the mortality of mother and infant.

植入型凶险型前置胎盘计划性剖宫产术中子宫动脉结扎阻塞及宫腔填充术的有效性和安全性

目的探究植入型凶险型前置胎盘计划性剖宫产术中采用子宫动脉结扎阻塞及宫腔填充术的有效性和安全性。方法选取2019年12月至2021年12月唐山市妇幼保健院收治的132例植入型凶险型前置胎盘计划性剖宫产术治疗患者为研究对象,按不同的血管阻断方式分为子宫动脉栓塞术联合宫腔填充治疗组(对照组)和子宫动脉结扎联合宫腔填充治疗组(观察组),观察比较两组患者的手术时间、术中出血量、术中输血量、膀胱损伤率,并观察记录两组母婴结局情况,包括新生儿1min Apgar评分、子宫切除率、凝血功能异常发生率。记录患者术后不良反应的发生情况,包括发热、慢性盆腔疼痛、伤口愈合不良、术后血栓形成、月经量降低等。结果观察组患者的手术时间、膀胱损伤率均较对照组更低(t=4.428和5.621,P<0.05),术中出血量、术中输血量未见显著差异(t=1.472和1.729,P>0.05),两组新生儿出生1min Apgar评分未见显著差异(t=0.257,P>0.05),但观察组产妇的子宫切除率、凝血功能异常发生率显著低于对照组(t=3.722和4.628,P<0.05),两组患者均未发生严重的产科并发症,其中观察组患者发热、慢性盆腔疼痛、术后血栓形成、伤口愈合不良、术后月经量降低的发生率均显著低于对照组,差异具有统计学意义(t=6.274、4.726、3.872、3.872和4.218,P<0.05)。结论子宫动脉结扎术和子宫动脉造影栓塞术对植入型凶险型前置胎盘患者具有一定的临床疗效,其中子宫动脉结扎手术时间短,术后并发症发生率低,具有较好的有效性和安全性。

止血囊与纱条填塞分别联合腹主动脉临时阻断术应用于伴胎盘植入孕妇剖宫产术中止血的价值

目的:探讨止血囊与纱条填塞分别联合腹主动脉临时阻断术用于伴胎盘植入孕妇剖宫产术中止血的价值。方法:回顾性分析伴胎盘植入且有意愿保留子宫的185例孕妇的临床资料,按照手术止血方法不同分为止血囊组(n=92)和纱条组(n=93)。对比两组手术相关指标(腹主动脉临时阻断时间、止血成功率、填塞物脱落率、填塞时间)、围术期出血量、纤维蛋白原(FIB)、凝血酶原时间(PT)、活化部分凝血酶原时间(APTT),统计并发症总发生率。结果:止血囊组腹主动脉临时阻断时间和填塞时间短于纱条组(P<0.05),术中及术后2、24 h出血量均少于纱条组(P<0.05),止血成功率高于纱条组(P<0.05),填塞物脱落率和术后并发症总发生率均低于纱条组(P<0.05),术后24 h FIB高于纱条组(P<0.05),PT和APTT低于纱条组(P<0.05)。结论:腹主动脉临时阻断术联合止血囊以及纱条均可有效改善伴胎盘植入剖宫产术中出血,止血囊成功率和安全性更高。

1例凶险性前置胎盘行双侧骼内动脉球囊封堵联合剖宫产术后并发DIC的护理

总结1例凶险性前置胎盘行双侧骼内动脉球囊封堵联合剖宫产术后并发弥散性血管内凝血(DIC)的护理。通过多学科团队的联合诊治及护理,病人病情平稳出院。随访半年,病人状况良好。

子宫动脉结扎联合腹主动脉球囊阻断术在胎盘植入性疾病剖宫产术中的应用

目的 :探讨子宫动脉结扎联合腹主动脉球囊阻断术在胎盘植入性疾病(placenta accreta spectrum disorders,PAS)剖宫产术中的有效性和有安全性。方法 :将83例PAS剖宫产产妇随机分为观察组(n=42)和对照组(n=41)。对照组给予腹主动脉球囊阻断剖宫产术,观察组给予子宫动脉结扎联合腹主动脉球囊阻断剖宫产术。比较2组手术相关指标和并发症。结果 :观察组手术时间长于对照组,术中出血量、术后24 h总出血量少于对照组,术后血红蛋白差值小于对照组(均P <0.05),并发症发生率低于对照组(4.76%vs 19.51%,χ^(2)=4.260,P=0.028)。结论 :子宫动脉结扎联合腹主动脉球囊阻断术有助于降低PAS剖宫产产妇术中及术后出血量,减少产后出血等并发症的发生。

不同性质球囊髂内动脉阻断术在凶险性前置胎盘剖宫产中的对比研究

目的 比较不同性质球囊髂内动脉阻断术在凶险性前置胎盘(PPP)剖宫产中的应用效果。方法 回顾性分析82例PPP患者的临床资料,其中观察组40例,给予双侧髂内动脉顺应性Fogarty球囊阻断术;对照组42例,给予非顺应性球囊髂内动脉阻断术。比较两组患者在髂内动脉阻断术前、术后收缩压及心率、X线透视时间、胎儿体表辐射剂量、剖宫产时间、术中出血量及输血量、子宫动脉栓塞率、子宫切除率和1、5、10 min新生儿Apgar评分以及术后住院时间及手术相关并发症。结果 两组患者子宫均成功保留,均成功行双侧髂内动脉球囊阻断术辅助剖宫产手术顺利完成。撤出球囊导管,部分患者行子宫动脉栓塞术,无患者行卵巢动脉栓塞及子宫切除术。两组患者术前、术后收缩压和心率组间比较差异均无统计学意义,但两组术后收缩压、心率低于术前,均P<0.05。两组X线透视时间、胎儿体表辐射剂量、子宫动脉栓塞率、子宫切除率和1、5、10 min新生儿Apgar评分以及术后住院时间对比差异均无统计学意义,观察组剖宫产时间、术中出血量、术中输血量低于对照组,均P<0.05。两组患者球囊阻断术后其相关并发症发生率比较差异均无统计学意义。结论 不同性质髂内球囊动脉阻断术辅助在PPP剖宫产均安全有效,但双侧髂内动脉顺应性球囊阻断术在减少剖宫产手术时间、术中出血量、术中输血量等方面更具优势。

剖宫产术中不同时机行血管介入阻断对凶险性前置胎盘患者及胎儿影响的Meta分析

目的系统评价剖宫产术中不同时机行血管介入阻断对凶险性前置胎盘患者及胎儿的影响。方法采用计算机检索PubMed、Embase、Medline、Web of Science、维普、万方数据库、中国知网、中国生物医学文献数据库等中不同时机行血管介入阻断对凶险性前置胎盘的相关研究。检索时限为建库至2024年3月1日,由两名研究员独立筛选随机对照或回顾性文献、提取数据,选用Review Manager 5.4.1软件分析,参照Cochrane协作网提供的偏倚风险评估工具对文献质量进行评估。结果共纳入12篇目标文献,1030例凶险性前置胎盘患者。Meta分析结果显示,胎儿娩出前阻断可降低术后子宫切除率(OR=0.54,95%CI:0.33~0.89)和术后入住ICU病房率(OR=0.34,95%CI:0.19~0.63),但不能降低序贯子宫动脉栓塞率(OR=0.61,95%CI:0.28~1.32)。此外,对胎儿1 min Apgar评分(MD=0.11,95%CI:-0.23~0.46)、5 min Apgar评分(MD=0.10,95%CI:-0.04~0.24)、1 min Apgar评分≤7分(OR=0.81,95%CI:0.36~1.85)、5 min Apgar评分≤7分(OR=0.93,95%CI:0.33~2.63)无明显影响。结论胎儿娩出前介入阻断的临床价值更高,且不会增加胎儿不良结局。

孕中期前置胎盘患者超声表现及对提早剖宫产的临床决策

目的 探讨孕中期前置胎盘患者超声表现及对提早剖宫产的临床决策。方法 选取2020年8月至2022年8月于我院就诊的前置胎盘孕妇296例,均行多普勒超声对孕妇产前检测,依据是否为提早剖宫产分为两组,提早剖宫产组(165例)和足月择期剖宫产组(131例),比较两组孕妇的一般临床资料、妊娠结局、围生儿结局、超声表现等情况,影响提早剖宫产的相关危险因素进行单因素Logistic回归分析;采用多因素Logistic回归分析超声指标PI、PS、VI、VIF、IF指标与不良妊娠风险的相关性;R软件构建列线图预测模型;利用建模组数据集作受试工作者特征(ROC)曲线和校准曲线对模型区分度和准确度进行评价,利用验证组数据集对模型进行外部评价。结果 提早剖宫产组的孕妇产前出血和转儿科治疗比例明显高于足月择期剖宫产组,而新生儿体重、5 min Apgar评分明显低于足月择期剖宫产组(P<0.05)。提早剖宫产组的超声指标PI、PS、VI、VIF、IF均高于足月择期剖宫产组,而RI低于足月择期剖宫产组(P<0.05)。入院出血、宫颈内口上方胎盘的厚度≥5 cm、怀孕次数<3次、宫颈长度<31 mm、流产史、宫颈受累、PI≥3.14、PS≥25.61、VI≥9.87、VFI≥3.41、FI≥33.52和RI<0.76均为孕妇提早剖宫产的独立影响因素(P<0.05),且PI、PS、VI、VIF、IF从低到高五分位数组趋势性检验差异有统计学意义(P<0.001);建模组和验证组ROC曲线和校准曲线结果均显示预测模型具有较好的区分度和准确度。结论 孕中期前置胎盘患者超声表现对前置胎盘孕妇紧急提早剖宫产有重要的预测价值,此外,有高危因素者,应该加强围产期管理,避免妊娠不良结局。

宫腔球囊联合水囊放置术在前置胎盘剖宫产后出血患者中的应用

目的探讨宫腔球囊联合水囊放置术在前置胎盘剖宫产后出血患者中的应用效果。方法选取2019年1月至2024年2月在濮阳县人民医院妇产科接受宫腔球囊联合水囊放置治疗的38例前置胎盘剖宫产后出血孕妇作为研究组,同期采用宫腔水囊放置治疗的38例前置胎盘剖宫产后出血孕妇作为对照组。比较两组孕妇产后24h的止血效果、手术指标(产妇控制出血时间、填塞至产后24h出血量、填塞物放置时间和住院时间),术前及术后24h的产妇血红细胞及血红蛋白浓度和术后并发症发生情况。结果产后24h,研究组孕妇的止血总有效率为100.00%,略高于对照组的94.74%,但差异无统计学意义(P>0.05);研究组孕妇的控制出血时间、填塞至产后24 h出血量、填塞物放置时间分别为(15.29±3.28)min、(80.04±10.17)mL、(28.17±1.93)h,明显少于对照组的(20.03±3.14)min、(84.19±12.04)mL、(30.08±2.47)h,差异均有统计学意义(P<0.05),而两组产妇的住院时间比较差异无统计学意义(P>0.05);两组孕妇术前红细胞、血红蛋白水平比较差异均无统计学意义(P>0.05);术后24h,两组孕妇的红细胞、血红蛋白水平均低于术前,差异均有统计学意义(P<0.05),但两组孕妇间术后24 h的红细胞、血红蛋白水平比较差异均无统计学意义(P>0.05);研究组孕妇术后并发症发生率为2.63%,略低于对照组的10.53%,但差异无统计学意义(P>0.05)。结论宫腔水囊放置术治疗前置胎盘剖宫产后出血的止血效果与宫腔球囊联合水囊放置术相似,但宫腔球囊联合水囊放置控制出血时间及填塞至产后24h出血量更少,填塞物放置时间更短,安全性均较高,临床可结合孕妇实践情况灵活选择治疗方式。

卡前列素氨丁三醇联合宫腔球囊填塞治疗前置胎盘剖宫产产后出血对出血量情况的影响分析

目的 探究与分析卡前列素氨丁三醇联合宫腔球囊填塞治疗前置胎盘剖宫产产后出血对出血量情况的影响。方法 目的选取2020年3月—2022年8月山东省潍坊市临朐县人民医院收治的80例前置胎盘剖宫产产后出血患者为研究对象并按照治疗方法不同分为两组,每组40例,对照组采取缩宫素联合卡前列素氨丁三醇治疗,观察组加用宫腔球囊填塞治疗,对比两组临床疗效、手术时间、首次月经时间、白细胞计数、血清C反应蛋白、出血量、住院时间及输血率、子宫切除率。结果 观察组临床总有效率为95.00%,较对照组(77.50%)高,差异有统计学意义(χ^(2)=5.165,P<0.05)。观察组手术时间、首次月经时间、白细胞计数、血清C反应蛋白水平、术中出血量、产后2 h出血量、产后24 h出血量、住院时间均优于对照组,差异有统计学意义(P均<0.05)。结论 卡前列素氨丁三醇联合宫腔球囊填塞治疗前置胎盘剖宫产产后出血可获得更好的临床疗效,围术期指标表现较好,同时可降低输血率以及子宫切除率,可获得更好的预后。

回收式自体输血在前置胎盘剖宫产术中应用价值的Meta分析

目的荟萃分析回收式自体输血(IOCS)在前置胎盘剖宫产术中的安全性和有效性。方法计算机检索PubMed、Web of Science、Embase、the Cochrane Library of clinical trials、中国知网(CNKI)及万方数据知识服务平台。检索时限设定为建库至2022年12月。采用R 4.1.2与Stata 12.0软件计算IOCS组和异体输血(ABT)组之间的标准化均数差(SMD)或相对危险度(RR)及95%置信区间(CI)和预测区间(PI)。结果本次Meta分析共纳入5项随机对照试验和10项回顾性队列研究。队列研究的合并结果显示,与ABT组相比,接受IOCS的前置胎盘孕产妇术后血红蛋白(Hb)浓度(SMD=0.626,95%CI:0.103~1.149;95%PI:-1.320~2.572)与红细胞压积较高(SMD=0.617,95%CI:0.130~1.104;95%PI:-1.084~2.317)。在随机对照试验中,接受IOCS的前置胎盘孕产妇发生不良事件的风险比ABT组低72.7%(RR=0.273,95%CI:0.082~0.904)。IOCS组和ABT组术后凝血酶原时间(PT)、活化凝血酶原时间(APTT)、纤维蛋白原(Fib)浓度、血尿素氮(BUN)和肌酐(Cr)差异均无无统计学意义。结论接受IOCS的前置胎盘孕产妇术后Hb浓度和Hct均高于接受ABT的妇女。IOCS对术后凝血参数和肾功能参数无显著影响。在接受剖宫产术的前置胎盘孕产妇中,IOCS与较低的输血相关不良事件发生风险有关。

PAS产前超声分级系统及子宫动脉超声参数在凶险性前置胎盘患者术前评估中的价值

目的评估胎盘植入性疾病(PAS)产前超声分级系统及子宫动脉超声参数在凶险性前置胎盘患者术前评估中的用价值。方法选取2020年2月—2022年11月三亚市妇幼保健院收治的92例凶险性前置胎盘患者作为研究对象,根据PAS产前超声分级将患者分为≤PAS-4组(1~4级)和>PAS-4组(5、6级),其中≤PAS-4组患者52例,>PAS-4组患者40例。比较两组患者一般临床资料、超声指标特征,采用多因素一般Logistic回归模型分析其在凶险性前置胎盘患者术前评估中的应用价值。结果≤PAS-4组既往剖宫产次数少于>PAS-4组,完全性凶险型比例低于>PAS-4组,血流搏动指数(PI)、血液流动阻力(RI)高于>PAS-4组(P<0.05)。≤PAS-4组子宫膀胱间高度血管化、胎盘后高度血管化、局部组织外生、胎盘陷窝支流血管、胎盘增厚、宫颈膨大、胎盘后间隙消失比例低于>PAS-4组(P<0.05)。多因素一般Logistic回归分析结果显示:PI高[O^R=0.961(95%CI:0.848,0.983)]、RI高[O^R=0.867(95%CI:0.839,0.923)]、既往剖宫产次数多[O^R=4.568(95%CI:2.012,7.609)]均是凶险性前置胎盘患者PAS产前超声分级>4级的影响因素(P<0.05)。联合预测凶险性前置胎盘患者PAS产前超声分级>4级的曲线下面积最高,为0.929(95%CI:0.881,0.977),其次为既往剖宫产次数;RI敏感性最高,为0.910(95%CI:0.711,0.953),其次为PI;联合预测特异性最高,为0.956(95%CI:0.727,0.975),其次为既往剖宫产次数。结论PI、RI、既往剖宫产次数指标在术前对凶险性前置胎盘PAS 4级以上患者有较好的预测价值,为术前制订手术方案提供了可靠的依据,可降低此类患者的手术并发症风险。