剖宫产术后再次妊娠84例分娩方式分析

目的 探讨剖宫产术后再次妊娠分娩方式的选择.方法 郑州大学第一附属医院2006年1月至2007年12月收治剖宫产术后再次妊娠孕妇84例,对其分娩方式、分娩结局及医疗费用进行回顾性分析.将其中剖宫产术后阴道分娩(VBAC)11例与同期非瘢痕子宫阴道分娩(VBNC)11例进行对照分析,再次剖宫产(RCS)73例与随机抽取同期首次剖宫产(PCS)73例进行对照分析.结果 18例阴道试产,11例试产成功,成功率61.11%;RCS 73例,手术产率86.91%.VBAC组新生儿窒息率、产时出血量、先兆子宫破裂发生率与对照组比较,差异无统计学意义(P>0.05);RCS组较VBAC组出血量大[(195.7±4.0)mL、(165.5±13.8)mL],平均住院天数多[(7.60±1.58)d、(5.20 ±0.22)d],医疗费用高;RCS组产后出血率(5.48%)较PCS组(0)高,差异有统计学意义(P<0.05).结论 剖宫产史并非再次剖宫产的绝对指征,无试产禁忌者可在严密监护下阴道试产.     

剖宫产术后再次妊娠177例分娩方式分析

目的探讨剖宫产术后再次妊娠的分娩方式.方法对1999年1月至2004年12月吴川市妇幼保健院177例剖宫产术后再次妊娠孕妇的分娩方式、分娩结局及母婴并发症进行回顾性分析,并将其中再次剖宫产(RCS)126例与随机抽取同期首次剖宫产(PCS)126例进行对照;将其中剖宫产术后阴道分娩(VBAC)51例与随机抽取同期非瘢痕子宫阴道分娩(VBNC)51例进行对照.结果 177例中73例行阴道试产,51例试产成功,成功率69.9%;RCS 126例,手术产率71.2%.VBAC组无新生儿窒息,产后出血量、先兆子宫破裂发生率与对照组比较差异无显著性意义.RCS产后出血量比VBAC组高,平均住院天数比VBAC组长,产后出血、严重粘连发生率均较PCS组高,差异有显著性意义(P＜0.05).结论剖宫产术后再次妊娠分娩并非是剖宫产绝对指征,符合试产条件者,严密监护下阴道试产是安全的.     

500例剖宫产术后再次妊娠分娩方式的临床分析

目的:探讨剖宫产术后再次妊娠分娩方式的选择。方法:收集2009年1月至2011年1月在我院产科进行分娩的剖宫产术后再次单胎妊娠孕妇500例,分为再次剖宫产组和阴道分娩组,回顾性分析两组母婴妊娠结局情况。结果:500例中208例阴道试产,146例阴道试产成功,成功率为70.2%,剖宫产者354例,剖宫产率70.8%;再次剖宫产组产后出血量、产后感染率、住院费用均高于阴道分娩组,恶露时间及住院天数均较阴道分娩组长,两者比较差异均具有统计学意义(P<0.05);再次剖宫产组新生儿Apgar评分、出生体重、感染、窒息及颅内出血与阴道分娩组相比,均无统计学意义(P>0.05)。结论:剖宫产史不是剖宫产术后再次妊娠再次行剖宫产的绝对指证,符合阴道试产条件者,可在严密监护下予阴道试产。     

低置胎盘产妇阴道分娩产后出血高危因素分析

目的:探讨低置胎盘产妇阴道分娩产后出血的高危因素。方法:分析上海市第一妇婴保健院2014年1月至2015年12月阴道分娩的345例低置胎盘活产单胎患者临床资料,按产后出血与否分为两组行单因素分析,并使用多因素Logistic回归分析评估各项高危因素。结果:产后出血共47例,总产后出血率13.6%。单因素分析显示辅助生殖受孕、产前出血史、胎盘距宫颈内口距离、胎盘粘连与产后出血有关(P0.05),Logistic多因素回归分析中则表明辅助生殖受孕(OR=8.181,95%CI 3.072~21.791)及胎盘粘连(OR=6.543,95%CI 3.107~13.775)为低置胎盘产后出血的独立高危因素。结论:低置胎盘患者应进行系统产前检查和分娩前经阴道超声检查,对各种高危因素进行分析评估,可能能提供更好的低置胎盘患者分娩方式的选择及对产后出血风险的预测,从而降低其产后出血率。     

剖宫产术后再次妊娠阴道分娩的安全性探讨

目的:探讨剖宫产术后再次妊娠行阴道分娩(VBAC)的安全性。方法:回顾性分析收治的剖宫产术后再次妊娠、符合剖宫产术后阴道试产(TOLAC)适应证、无TOLAC禁忌证的363例孕妇的临床资料,根据患者意愿158例孕妇愿意行TOLAC,其中自然临产44例(自然临产组),Bishop≥6分行缩宫素静滴引产81例(宫颈成熟组),Bishop6分行Cook双球囊放置术促宫颈成熟后行缩宫素静滴引产33例(宫颈不成熟组),并按照最终的分娩方式分为TOLAC成功137例(VBAC组)、择期再次剖宫产205例(ERCS组)。比较VBAC组和ERCS组的分娩及新生儿情况及TOLAC试产组中的3个亚组的试产成功率和产后出血量。结果:137例孕妇阴道试产成功,试产成功率86.7%(137/158)。TOLAC中自然临产组、宫颈成熟组和宫颈不成熟组试产成功率和产后24小时出血量比较,差异均无统计学意义(P0.05)。VBAC组和ERCS组产妇均未出现子宫破裂;VBAC组产后24小时出血量、母亲输血率、住院时间、住院费用均低于ERCS组,差异有统计学意义(P0.05);VBAC组新生儿1分钟Apgar评分与ERCS组比较,差异无统计学意义(P0.05)。结论:严格掌握TOLAC适应证,加强产时监测并及时处理,VBAC安全可行,对无禁忌证的孕妇可倡导阴道试产,球囊促宫颈成熟对计划性TOLAC而言可能是一种安全有效的方法。     

1211例剖宫产后妊娠产妇分娩结局的相关分析研究

目的:分析剖宫产后再次妊娠孕妇的分娩结局。方法:选取2013年1月至2018年1月于首都医科大学附属北京世纪坛医院妇产科分娩的剖宫产后再次妊娠孕妇1211例,其中剖宫产术后阴道试产(TOLAC)分娩者119例(TOLAC组),择期重复剖宫产(ERCD)分娩者1092例(ERCD组),比较两组孕产妇的临床病例资料。结果:与ERCD组相比,TOLAC组的产次更多[≥2次:43例(36.1%) vs 195例(17.9%)]、距前次分娩时间更长[(4.3±2.9)年vs(3.8±2.5)年]、子宫下段肌层厚度更厚[(3.4±0.3)mm vs (3.1±0.4)mm]、分娩孕周更晚[(39.3±1.4)周vs (38.3±2.6)周],差异均有统计学意义(P均0.05)。TOLAC组的子宫破裂发生率[2(1.7%) vs 0]、新生儿5min Apgar评分[(9.8±0.4) vs (9.6±0.7)]和出生体重[(3240.3±446.1)g vs (3158.6±413.8)g]均高于ERCD组,差异均有统计学意义(P均0.05)。结论:根据相关指南规范对剖宫产后妊娠产妇实施TOLAC相对安全,选择分娩方式时应合理进行临床决策。     

低浓度罗哌卡因复合小剂量舒芬太尼椎管内分娩镇痛在剖宫产术后再次妊娠阴道分娩中的应用

目的:探讨低浓度罗哌卡因复合小剂量舒芬太尼椎管内分娩镇痛用于剖宫产术后再次妊娠阴道分娩(VBAC)的可行性。方法:回顾分析2012年1月至2013年12月于我院建卡的剖宫产术后再次妊娠要求阴道试产的单胎、足月病例83例,按是否接受椎管内分娩镇痛将研究对象分为镇痛组(37例)和非镇痛组(46例)。比较两组的产程时间、催产素使用情况、分娩方式、产后出血量、新生儿体重及新生儿Apgar评分。结果:两组产妇的年龄、体重指数、孕周比较,差异均无统计学意义。镇痛组的催产素使用率为62.2%,显著高于非镇痛组(21.7%)(P0.01)。镇痛组镇痛后的VAS评分显著低于镇痛前[(9.43±0.50)分vs(3.16±0.69)分,P0.01]。两组的产程时间、产后出血量、新生儿体重、Apgar评分比较,差异无统计学意义(P0.05)。两组均无子宫破裂等严重并发症发生。结论:低浓度罗哌卡因复合小剂量舒芬太尼应用于VBAC安全有效,值得推广。     

剖宫产术后再次妊娠阴道分娩的临床分析

目的：探讨剖宫产术后再次妊娠阴道分娩（VBAC）患者的试产成功率、产程及母婴并发症。方法：选取2012年1至2013年3月在我院行阴道分娩的剖宫产术后再次妊娠的153例产妇为研究组,同期选取行阴道分娩的200例孕足月初产妇为对照组。分析两组的阴道试产成功率、产程、母婴并发症。结果：研究组153例,试产成功130例（84.97%）;对照组200例,试产成功183例（91.50%）。两组的阴道试产成功率、第一产程、第二产程及总产程、新生儿窒息率、巨大儿发生率均无显著差异（P〉0.05）;而第三产程时间、手取胎盘率、会阴侧切率及产后出血率均显著高于对照组（P〈0.05）。结论：对有1次子宫下段横切口剖宫产史的孕妇,应给予充分的阴道试产机会,同时应积极处理第三产程,预防产后出血。     

胎盘早剥合并胎死宫内分娩方式的探讨

目的:探讨胎盘早剥合并胎死宫内的临床处理方案及分娩方式.方法:回顾性分析1994年1月至2011年7月于北京大学第三医院产科治疗的胎盘早剥合并胎死宫内患者23例.其中阴道分娩11例(阴道分娩组),剖宫产12例(剖宫产组),比较两组年龄、分娩方式、出血量、产时及产后并发症,评价阴道分娩的安全性.结果:23例患者中,11例(47.8％)行阴道分娩,12例因阴道试产失败或因其他原因直接行剖宫产手术,其中16.7％ (2/12)因术中出血多,保守治疗无效而行次全子宫切除术.两组均无孕产妇死亡病例发生;两组患者的年龄、孕周、妊娠次数、产前出血量、产前合并症比较,差异均无统计学意义(P＞0.05);剖宫产组产后出血发生率(91.7％)、出血量( 1986.4±1653.3ml)均高于阴道分娩组的54.5％和928.0±737.8ml,但差异均无统计学意义(P =0.069;P=0.076).结论:胎盘早剥合并胎死宫内的患者选择恰当的时机和分娩方式可减少对患者的进一步损伤,阴道试产是一个值得肯定的分娩方式,可以尝试在严密监测和纠正凝血功能的情况下经阴道分娩.     

不同分娩方式对产后早期盆底功能的影响

目的探讨不同分娩方式对产后早期盆底功能的影响。方法随机抽取2007年7~10月在广州医学院第一附属医院分娩的产妇43例,根据不同分娩方式分为选择性剖宫产组(21例)和阴道顺产组(22例)。分别于产后6~8周及12~14周行POP-Q评分、尿垫试验、超声检测残余尿以及会阴超声检查,比较两组产妇压力性尿失禁(SUI)、盆腔器官脱垂(POP)的发生率及膀胱颈移动度情况。结果产后6~8周和产后12~14周随访时,SUI发生率依次为选择性剖宫产组4.76%(1/21),0(0/14);顺产组27.27%(6/22),28.57%(4/14),两组比较差异均无统计学意义(P>0.05)。产后6~8周和产后12~14周随访时,POP发生率依次为选择性剖宫产组38.10%(8/21),35.71%(5/14),较顺产组72.72%(16/22),78.57%(11/14)低,差异均有统计学意义(P<0.05)。产后6~8周会阴超声结果显示:选择性剖宫产组与顺产组膀胱颈角度[(81.48±7.96)°对(93.82±15.37)°]及膀胱颈旋转角度[(15.71±8.01)°对(27.72±11.14)°]比较,差异有统计学意义(P<0.05)。产后12~14周选择性剖宫产组与顺产组膀胱颈角度[(79.93±8.19)°对(89.93±13.92)°]及膀胱颈旋转角度[(13.79±4.98)°对(23.07±12.17)°]比较,差异有统计学意义(P<0.05)。结论剖宫产可降低产后早期POP的发生率,并可减少发生SUI的风险。     

Recent advances in the management of placenta previa

PURPOSE OF REVIEW: Despite the widespread and routine use of ultrasound to make the diagnosis of placenta previa, evidence-based classification and management strategies have failed to evolve over the years. The purpose of this review is to present the current evidence supporting the screening, diagnosis and management of placenta previa. RECENT FINDINGS: The prevalence of placenta previa is significantly overestimated due to the practice of routine mid-pregnancy scan, and many women currently undergo a repeat scan in late pregnancy for placental localization. Recent reports support limiting third-trimester scans to only those cases where the placental edge either reaches or overlaps the internal cervical os at 20-23 weeks of pregnancy. In some cases of mid-trimester placenta previa, the placental edge is more likely to "migrate" than others, and it appears that ultrasound may be useful to predict this process. At term, women with placental edge within 2 cm of the internal cervical os require a Caesarean section for delivery, whereas an attempt at vaginal birth is appropriate if this distance is more that 2 cm. Ultrasound also has a role in the diagnosis and management of both vasa previa and placenta accreta. SUMMARY: This review addresses screening for placenta previa. A simple and pragmatic ultrasound classification of placenta previa and low-lying placenta is proposed. Caesarean section is recommended for delivery in cases of placenta previa. Women with a low-lying placenta have at least 60% chance of a vaginal birth, but should be monitored for post-partum haemorrhage. Vasa previa is a rare complication but antenatal diagnosis is possible. It should particularly be suspected in in-vitro fertilization conceptions, and where the placental edge covers the os in mid-pregnancy but recedes later on. Prenatal diagnosis of placenta accreta should be based on the placental lacunae signs rather than the absence of retro-placental clear space.     

Planned vaginal delivery versus planned cesarean delivery in cases of low-lying placenta

Objective: To assess the applicability of trial of labor in cases of low-lying placenta.

Methods: In this observational cohort study, we collected data from the women with low-lying placenta delivered at our hospital between April 2012 and December 2015. Low-lying placenta was diagnosed when the length from the placental lowest edge to the internal cervical os (placenta-os distance) was 0–20?mm at 36 gestational weeks. Planned mode of delivery for each case was determined by patient’s preference. Maternal and neonatal outcomes were compared between the planned vaginal delivery group (N?=?11) and the planned cesarean delivery group (N?=?7).

Results: All the women in the planned cesarean delivery group underwent scheduled cesarean section at 37–38 gestational weeks. Three cases in the planned vaginal delivery group required emergency cesarean section for uncontrollable antepartum bleeding. The intrapartum blood loss was significantly smaller in the planned vaginal delivery group than in the planned cesarean delivery group (946?±?204?g vs. 1649?±?256?g, p?=?0.047). Umbilical arterial blood pH was similar between the two groups. All the women requiring emergency cesarean section were accompanied by marginal sinus.

Conclusions: Trial of labor can be offered to all the women with low-lying placenta except for those accompanied by marginal sinus.     

Marginal sinus placenta previa is a different entity in placenta previa: A retrospective study using magnetic resonance imaging

Objective

The current definition of placenta previa does not include whether the placental edge is parenchyma or marginal sinus defined as placenta previa in which the placental marginal sinus just reached the internal os and/or in which the placental parenchyma might be located at > 2 cm from internal os.

Placental edge to internal os distance in the late third trimester and mode of delivery in placenta praevia

Objectives To correlate transvaginal ultrasound findings with mode of delivery in cases of placenta praevia.
Design Cohort study.
Setting A London Teaching Hospital.
Methods Retrospective review of all cases of placenta praevia diagnosed by transvaginal ultrasound between February 1997 and March 2002.
Main outcome measures Likelihood of vaginal delivery and major obstetric haemorrhage.
Results A total of 121 pregnancies were studied with a mean scan-to-delivery interval of 10.5 days. In the 64 women who laboured, the likelihood of vaginal delivery rose significantly as the placental edge to internal os distance increased. Caesarean section rate was 90% when the placental edge–internal os distance was 0.1 to 2.0 cm, falling to 37% when this measurement was over 2.0 cm (   P < 0.00045  ).
Conclusion Trial of vaginal delivery is appropriate in cases with a placental to internal os distance>2 cm. The term 'praevia' should be restricted to cases where the placental edge is ≤2 cm from the internal os, as the likelihood of operative delivery and significant postpartum haemorrhage is high. Cases where the placenta is more than 2 cm from the internal os have a greater than 60% chance of vaginal delivery and should be defined as 'low lying' in order to reduce the clinician's bias towards operative delivery.     

Bleeding complications in pregnancies with low-lying placenta

Objective: To evaluate pregnancy outcomes with low-lying placenta according to the distance from placenta to cervical os.

Methods: Retrospective cohort study of singleton pregnancies with low-lying placenta (placenta edge within 20?mm of internal os on transvaginal sonography) delivered at our hospital from 2002 to 2012, excluding suspected placenta accreta and vasa previa. Vaginal delivery was offered in the absence of another indication for cesarean. Outcomes were stratified according to placenta-os distance ≤10?mm and 11–20?mm.

Results: Of 98 pregnancies with low-lying placenta, 41% had placenta-os distance ≤10?mm and 59% placenta-os distance 11–20?mm. Fifty-four percent had a trial of labor. Six (15%) with placenta-os ≤10?mm and 21 (36%) with placenta-os 11–20?mm delivered vaginally, p?=?0.02. Bleeding necessitating cesarean occurred in 25%, and postpartum hemorrhage in 43%; neither complication associated with placenta-os distance. Third-trimester bleeding prior to delivery hospitalization was reported in 44% and associated with later bleeding requiring cesarean in 51% versus 4% of those without third-trimester bleeding, p?<?0.001.

Conclusion: Whereas low-lying placenta does not contraindicate labor, we found significant risk for bleeding complications, regardless of the planned mode of delivery. Placenta-os distance did not significantly affect outcomes in our series.     

Anticipation of uterine bleeding in placenta previa based on vaginal sonographic evaluation

OBJECTIVES: The aim of this study was to predict massive uterine bleeding during pregnancy and cesarean section in women with placenta previa using transvaginal ultrasonography. METHODS: Transvaginal ultrasonography was performed prospectively at and after 28 gestational weeks with follow-up scans at 5- to 7-day intervals until cesarean section in 35 women with placenta previa. The patients were classified into 3 groups based on the following sonographic features of the placental edge in relation to the internal cervical os: type A = two thirds of the placenta from the placental center overlapping the internal os (13 cases); type B = one third of the placenta from the periphery to outside overlapping the internal os (10 cases), and type C = echo-free space (EFS) in the placental edge overlapping the internal os (12 cases). In some cases of type-A placentas, lacunae with blood flow in the placenta from the basal plate to the chorionic plate were also observed. All types were further subdivided based on the presence or absence of associated sponge-like echo (S-echo) in the wall of the uterus adjacent to the placental location. In each type, the relation with the amount of bleeding during hospitalization and preterm delivery was examined. RESULTS: Incidences of sudden massive bleeding during hospitalization were 7.7% (1/13), 10.0% (1/10), and 83.3% (10/12), in types A, B and C, respectively, being significantly higher in type C (p < 0.01). The risk of antepartum massive bleeding was also significantly higher in type C (p < 0.01). The incidence of preterm delivery due to sudden massive bleeding and the amount of bleeding during cesarean section were significantly higher in type A + S and type A + S with lacunae, respectively. CONCLUSIONS: Sonographic EFS in the lower edge of the placenta overlying the cervix indicates the risk of sudden massive antepartum bleeding. Furthermore, lacunae with sponge-like echo may also reflect the risk of massive bleeding at cesarean section. These findings warrant further observational studies to verify their clinical implications.     

Toward consistent terminology of placental location

The diagnosis of placenta previa has shifted from clinical examination of the dilated cervix to sonographic assessment of the closed internal os, resulting in terminology confusion. If the cervix is closed, the distinction between a placental edge at the cervical margin and one partially covering the os is neither reliable nor clinically important. Cesarean delivery is recommended if the placenta reaches the cervical margin at time of delivery, and this entity may be grouped with placenta previa. Partial previa should probably be restricted to those with cervical dilatation. The terms marginal previa and low-lying placenta have been used interchangeably. However, if the placenta implants in the lower uterine segment but does not reach the cervix, low-lying placenta is preferred, and vaginal delivery may be achieved, depending on placental–os distance and presence of bleeding. Limited data suggest that if the placenta is within 2 cm of the os—low-lying placenta, cesarean delivery is performed for bleeding in one-third of cases.     

Early preterm delivery due to placenta previa is an independent risk factor for a subsequent spontaneous preterm birth

ABSTRACT: BACKGROUND: To determine whether patients with placenta previa who delivered preterm have an increased risk for recurrent spontaneous preterm birth. METHODS: This retrospective population based cohort study included patients who delivered after a primary cesarean section (n = 9983). The rate of placenta previa, its recurrence, and the risk for recurrent preterm birth were determined. RESULTS: Patients who had a placenta previa at the primary CS pregnancy had an increased risk for its recurrence [crude OR of 2.65 (95 % CI 1.3-5.5)]. The rate of preterm birth in patients with placenta previa in the primary CS pregnancy was 55.9 %; and these patients had a higher rate of recurrent preterm delivery than the rest of the study population (p < .001). Among patients with placenta previa in the primary CS pregnancy, those who delivered preterm had a higher rate of recurrent spontaneous preterm birth regardless of the location of their placenta in the subsequent delivery [OR 3.09 (95 % CI 2.1-4.6)]. In comparison to all patients with who had a primary cesarean section, patients who had placenta previa and delivered preterm had an independent increased risk for recurrent preterm birth [OR of 3.6 (95 % CI 1.52-8.51)]. CONCLUSIONS: Women with placenta previa, who deliver preterm, especially before 34 weeks of gestation, are at increased risk for recurrent spontaneous preterm birth regardless to the site of placental implantation in the subsequent pregnancy. Thus, strict follow up by high risk pregnancies specialist is recommended.     

Elective Cesarean Delivery: Does It Have a Negative Effect on Breastfeeding?

Abstract: Background: Cesarean delivery has negative effects on breastfeeding. The objective of this study was to evaluate breastfeeding rates, defined in accordance with World Health Organization guidelines, from delivery to 6 months postpartum in infants born by elective and emergency cesarean section and in infants born vaginally. Methods: Delivery modalities were assessed in relation to breastfeeding patterns in 2,137 term infants delivered at a tertiary center, the Padua University School of Medicine in northeastern Italy, from January to December 2007. The study population included 677 (31.1%) newborns delivered by cesarean section, 398 (18.3%) by elective cesarean, 279 (12.8%) by emergency cesarean section, and 1,496 (68.8%) delivered vaginally. Results: Breastfeeding prevalence in the delivery room was significantly higher after vaginal delivery compared with that after cesarean delivery (71.5% vs 3.5%, p < 0.001), and a longer interval occurred between birth and first breastfeeding in the newborns delivered by cesarean section (mean ± SD, hours, 3.1 ± 5 vs 10.4 ± 9, p < 0.05). No difference was found in breastfeeding rates between the elective and emergency cesarean groups. Compared with elective cesarean delivery, vaginal delivery was associated with a higher breastfeeding rate at discharge and at the subsequent follow‐up steps (7 days, 3 mo, and 6 mo of life). Conclusions: Emergency and elective cesarean deliveries are similarly associated with a decreased rate of exclusive breastfeeding compared with vaginal delivery. The inability of women who have undergone a cesarean section to breastfeed comfortably in the delivery room and in the immediate postpartum period seems to be the most likely explanation for this association. (BIRTH 37:4 December 2010)     

胎盘植入性疾病的危险因素及妊娠结局分析

目的探讨胎盘植入性疾病的危险因素及妊娠结局。 方法回顾性分析2009年1月至2017年12月广州医科大学附属第三医院/广州重症孕产妇救治中心围产资料数据库中信息完整的单胎妊娠孕妇48 650例临床资料,将这些孕妇分为胎盘植入性疾病组和非胎盘植入性疾病组,分析胎盘植入性疾病的危险因素及其妊娠结局。 结果单因素分析显示,年龄≥35岁、高中教育水平及以下、孕次≥3次、经产妇、人工流产史、剖宫产史、体外受精－胚胎移植受孕、合并前置胎盘是胎盘植入性疾病的相关危险因素(P<0.05)。多因素logistic回归分析显示,胎盘植入性疾病的独立危险因素为剖宫产史(OR＝2.254,95%CI：1.917～2.650)、体外受精－胚胎移植受孕(OR＝1.591,95%CI：1.212～2.089)、合并前置胎盘(OR＝28.282,95%CI：24.338～32.866);与非胎盘植入性疾病产妇相比,患有胎盘植入性疾病产妇早产、剖宫产、产后出血、弥散性血管内凝血、产褥期感染、子宫切除、低出生体重儿、新生儿Apgar评分相对较低(1 min)、产妇入住重症监护病房的发生率明显升高(P<0.05)。 结论剖宫产史、辅助生殖受孕、合并前置胎盘是引起胎盘植入性疾病的独立危险因素,胎盘植入性疾病的妊娠结局不良。