特发性血小板减少性紫癜合并妊娠的临床分析

目的 探讨特发性血小板减少紫癜（ITP）合并妊娠的围产期处理方法。方法 回顾性分析我院1990－1999年间37例ITP合并妊娠的临床处理经验。结果 37例ITP孕妇中阴道分娩16例,剖宫产21例。与ITP有关的围产期并发症有产后出血及产褥感染,发生率分别为8．1％和2．7％。无孕产妇死亡。3例新生儿出现血小板减低,发生率为8．1％。无颅内出血发生。结论 ITP合并妊娠时,如不无科合并症,产妇以阴道分娩为宜;血小板水平极低的情况下,也可在血源充足时行选择性剖宫产;不主张使用干预性措施预防新生儿被动免疫性血小板减少症。     

Risk for postpartum hemorrhage,transfusion, and hemorrhage-related morbidity at low,moderate, and high volume hospitals

Objective: The objective of this study was to characterize risk for and temporal trends in postpartum hemorrhage across hospitals with different delivery volumes.

Study design: This study used the Nationwide Inpatient Sample (NIS) to characterize risk for postpartum hemorrhage from 1998 to 2011. Hospitals were classified as having either low, moderate or high delivery volume (≤1000, 1001 to 2000,?>2000 deliveries per year, respectively). The primary outcomes included postpartum hemorrhage, transfusion, and related severe maternal morbidity. Adjusted models were created to assess factors associated with hemorrhage and transfusion.

Results: Of 55,140,088 deliveries included for analysis 1,512,212 (2.7%) had a diagnosis of postpartum hemorrhage and 361,081 (0.7%) received transfusion. Risk for morbidity and transfusion increased over the study period, while the rate of hemorrhage was stable ranging from 2.5 to 2.9%. After adjustment, hospital volume was not a major risk factor for transfusion or hemorrhage.

Discussion: While obstetric volume does not appear to be a major risk factor for either transfusion or hemorrhage, given that transfusion and hemorrhage-related maternal morbidity are increasing across hospital volume categories, there is an urgent need to improve obstetrical care for postpartum hemorrhage. Those risk factors are able to discriminate women at increased risk supports routine use of hemorrhage risk assessment.     

初产妇与经产妇巨大儿分娩方式比较

目的　探讨产次对巨大儿分娩方式的影响。方法　对 2 0 0 0年 1月～ 2 0 0 3年 12月在我院分娩巨大儿的 131例正常单胎头位产妇进行回顾性分析 ,比较初产妇 (n =10 0 )与经产妇 (n =31)巨大儿的分娩方式及母儿并发症 ,并分别与同期分娩正常体重儿的初产妇和经产妇进行比较。结果　与分娩正常体重儿的产妇比较 ,分娩巨大儿的初产妇及经产妇选择性剖宫产率均明显增高 (2 2 0 %VS 38 0 % ,P <0 0 1;14 9%VS 32 3% ,P <0 0 5 ) ;初产妇试产失败急诊剖宫产率也明显增高 (18 0 %VS 4 1 9% ,P <0 0 1) ,产后出血率增加 (0 4 %VS3 0 % ,P <0 0 5 ) ;经产妇阴道分娩成功率及母儿并发症与分娩正常体重儿的产妇间差异无显著性 (P >0 0 5 )。结论　估计胎儿体重低于 4 5 0 0g的低危产妇可给予阴道试产机会 ,初产妇应特别注意产程观察及产后出血的防治。巨大儿实施选择性剖宫产应慎重。     

Impact of simulation and team training on postpartum hemorrhage management in non-academic centers

Objective: Prompt recognition and response to postpartum hemorrhage (PPH) are vital in preventing maternal morbidity and mortality. We conducted a multi-center study to evaluate in situ simulation and team training for PPH among experienced clinical teams in non-academic hospitals in urban and rural communities.

Methods: A longitudinal intervention study was performed in six Oregon community hospitals. All teams responded to an in situ simulated delivery and postpartum hemorrhage using trained actors and an obstetric birthing simulator, followed by a debriefing and training session. The simulation scenario was then repeated in 9–12?months. All sessions were digitally video recorded and independently reviewed by two obstetricians using a structured evaluation form. PPH management including clinical response times were compared before and after team training using Student’s paired t-test and McNemar’s test.

Results: Twenty-two teams completed paired case simulations. Team training significantly improved response times in the management of PPH, including the recognition of PPH, time to administer first medication, performance of uterine massage and time to administer second medication. Medical management (use of three indicated medications) improved after training from 27.3% to 63.6%, p?=?0.01.

Conclusions: Simulation and team training significantly improved postpartum hemorrhage response times among clinically experienced community labor and delivery teams.     

Prolonged third stage of labor: morbidity and risk factors

Although retained placenta is a major cause of postpartum hemorrhage, there is no general agreement regarding when manual placental extraction is indicated to prevent hemorrhage. We sought to determine the following: 1) what duration of the third stage of labor is abnormal, 2) what duration is associated with complications, and 3) what antecedent conditions are associated with prolonged third stage. We studied 12,979 consecutive, singleton vaginal deliveries over an 11-year period. Third-stage duration had a log-normal distribution, with a geometric mean of 6.8 minutes, a median of 6 minutes, and an interquartile range of 4-10 minutes. A third stage of 30 minutes or longer occurred in 3.3% of the deliveries. The incidence of postpartum hemorrhage, transfusion, and D&C remained constant in third stages less than 30 minutes, then rose progressively, reaching a plateau at 75 minutes. The increase in these complications after 30 minutes was observed with both spontaneously delivered and manually extracted placentas. In a logistic regression analysis, factors significantly associated with prolonged third stage included: preterm delivery (odds ratio 3.81), delivery in a labor bed (odds ratio 2.17), preeclampsia (odds ratio 1.76), augmented labor (odds ratio 1.47), and nulliparity (odds ratio 1.45). Because there was no increase in hemorrhage until the third stage exceeded 30 minutes, we suggest that in the absence of bleeding, manual placental extraction is not indicated until 30 minutes have elapsed.     

The effect of intraabdominal irrigation at cesarean delivery on maternal morbidity: a randomized trial

To determine if intraabdominal irrigation with normal saline at cesarean delivery is associated with increased maternal morbidity.One hundred ninety-six women undergoing routine cesarean delivery at at least 37 weeks' gestation were prospectively randomized to receive 500-1000 mL of normal saline intraabdominal irrigation versus no irrigation after closure of the uterine incision, but before abdominal wall closure. Data were collected for comparison of demographic factors, intrapartum and postpartum complication rates, and maternal and neonatal outcomes. The primary outcome measure was the combined incidence of maternal morbidity, defined as at least one of the following: postoperative infectious morbidity, postpartum hemorrhage, severe anemia, and urinary retention.Ninety-seven patients were randomized to the irrigation group and 99 to the control group. The demographic characteristics of the two groups were similar. Thirteen patients (13.1%) in the control group and 14 patients (14.4%) in the irrigation group experienced maternal morbidity (P =.84). There were no statistically significant differences between the groups in estimated blood loss, operating time, incidence of intrapartum complications, hospital stay, return of gastrointestinal function, incidence of infectious complications, or neonatal outcomes.Routine intraabdominal irrigation at cesarean delivery in a low-risk population does not reduce intrapartum or postpartum maternal morbidity.     

Maternal and neonatal outcome after failed ventouse delivery: comparison of forceps versus cesarean section.

OBJECTIVES: To compare the immediate maternal and neonatal morbidity in women delivered by forceps or cesarean section after failed ventouse delivery. METHODS: Case notes of 400 consecutive successful ventouse deliveries compared with 342 failed ventouse deliveries, where delivery was subsequently achieved with either forceps (N = 247) or cesarean section (N = 95), which took place between October 1999 and May 2003, were reviewed. RESULTS: Failed ventouse delivery was associated with an increased chance for fetal malposition (OR 3.7, 95% CI 2.6 - 5.3) and postpartum hemorrhage (OR 3.5, 95% CI 1.8 - 6.8). Compared to forceps after failed ventouse, cesarean section was associated with a higher prevalence of postpartum hemorrhage (OR 7.8, 95% CI 3.6 - 16.9) and fewer third degree perineal tears (p < 0.05). There were no significant differences between cesarean section and forceps delivery after failed ventouse for neonatal morbidity. CONCLUSIONS: Failure of ventouse delivery is 3 - 4 times more likely with a fetal malposition and is associated with an increased risk of postpartum hemorrhage. While cesarean section increases the postpartum hemorrhage rate, forceps delivery is associated with increased likelihood of third degree perineal tears. The neonatal morbidity was comparable regardless of whether forceps or cesarean was used after failed ventouse.     

Complete versus incomplete placenta previa and obstetric outcome.

OBJECTIVE: To compare obstetric outcome in women with complete versus incomplete placenta previa (PP). METHODS: A 10-year retrospective case-control study was conducted between 1992 and 2001. A 202 singleton pregnancies with PP were analyzed. RESULTS: The incidence of PP was 0.4%. Complete PP comprised 32.7% and incomplete PP 67.3% of cases. No difference was observed in the frequency of antepartum hemorrhage. Women with complete PP had significantly higher requirement for antepartum and postpartum transfusions, higher frequency of postpartum hemorrhage and postpartum hysterectomy. The risk for placenta accreta was increased in complete PP group even after controlling for confounding factors (adjusted OR=3.75, 95% CI=1.11-12.68, p<0.05). No difference in the frequency of preterm delivery was found between the groups. Term infants of mothers with complete PP had significantly lower birth weight (3205 vs. 3360, p=0.04). CONCLUSION: Complete PP is a high-risk subgroup of PP associated with higher maternal morbidity in comparison to incomplete PP.     

The length of the third stage of labor and the risk of postpartum hemorrhage

OBJECTIVE: To estimate whether the length of the third stage of labor is correlated with postpartum hemorrhage. METHODS: In this prospective observational study women delivering vaginally in a tertiary obstetric hospital were assessed for postpartum hemorrhage. All women were actively managed with the administration of oxytocin upon delivery of the anterior shoulder. Blood loss was measured at each delivery in collecting devices, and drapes and sheets were weighed to calculate the blood loss at each vaginal delivery. Postpartum hemorrhage was defined as more than 1,000 mL blood loss or hemodynamic instability related to blood loss requiring a blood transfusion. RESULTS: During a 24-month period there were 6,588 vaginal deliveries in a single tertiary obstetric hospital, and postpartum hemorrhage occurred in 335 of these (5.1%). The median length of the third stage of labor was similar in women having and those not having a postpartum hemorrhage. The risk of postpartum hemorrhage was significant at 10 minutes, odds ratio (OR) 2.1, 95% confidence interval (CI), 1.6-2.6; at 20 minutes, OR 4.3, 95% CI 3.3-5.5; and at 30 minutes OR 6.2, 95% CI 4.6-8.2. The best predictor for postpartum hemorrhage using receiver operating characteristic curves was 18 minutes. CONCLUSION: A third stage of labor longer than 18 minutes is associated with a significant risk of postpartum hemorrhage. After 30 minutes the odds of having postpartum hemorrhage are 6 times higher than before 30 minutes. LEVEL OF EVIDENCE: III.     

Placenta previa and the risk of preterm delivery.

OBJECTIVES: We aimed to quantify the risk of preterm delivery and maternal and neonatal morbidities associated with placenta previa. STUDY DESIGN: We conducted a retrospective cohort study of singleton births that occurred between 1976 and 2001, examining outcomes including preterm delivery and perinatal complications. Multivariate logistic regression was used to control for potential confounders. Kaplan-Meier survival curves were constructed to compare preterm delivery in pregnancies complicated by previa vs. no previa. RESULTS: Among the 38 540 women, 230 women had previas (0.6%). Compared to controls, pregnancies with previa were significantly associated with preterm delivery prior to 28 weeks (3.5% vs. 1.3%; p = 0.003), 32 weeks (11.7% vs. 2.5%; p < 0.001), and 34 weeks (16.1% vs. 3.0%; p < 0.001) of gestation. Patients with previa were more likely to be diagnosed with postpartum hemorrhage (59.7% vs. 17.3%; p < 0.001) and to receive a blood transfusion (11.8% vs. 1.1%; p < 0.001). Survival curves demonstrate the risk of preterm delivery at each week and showed an overall higher rate of preterm delivery for patients with a placenta previa. CONCLUSIONS: Placenta previa is associated with maternal and neonatal complications, including preterm delivery and postpartum hemorrhage. These specific outcomes can be used to counsel women with previa.     

Maternal morbidity associated with cesarean delivery without labor compared with induction of labor at term

OBJECTIVE: To estimate the maternal morbidity associated with cesarean deliveries performed at term without labor compared with morbidity associated with induction of labor at term. METHODS: A 15-year population-based cohort study (1988-2002) using the Nova Scotia Atlee Perinatal Database compared maternal outcomes in nulliparous women delivering by cesarean delivery without labor and nulliparous women at term undergoing induction of labor for planned vaginal delivery with singleton, cephalic presentation. RESULTS: A total of 5,779 pregnancies satisfied inclusion and exclusion criteria, 879 of which were cesarean deliveries without labor. There were no maternal deaths. There was no difference in wound infection, puerperal febrile morbidity, blood transfusion or intraoperative trauma. After controlling for potential confounders, women undergoing cesarean delivery without labor were less likely to have complications of early postpartum hemorrhage (relative risk 0.61, 95% confidence interval 0.42-0.88, number needed to treat 32) and composite maternal morbidity (relative risk 0.71, 95% confidence interval 0.52-0.95, number needed to treat 34) compared with women undergoing induction of labor. Subgroup analyses of maternal outcomes after induction of labor in women by method of delivery were also performed and demonstrated additional risks of traumatic morbidity after induction of labor. The highest morbidity was found in the assisted vaginal delivery and cesarean delivery in labor groups. CONCLUSION: Early postpartum hemorrhage and composite maternal morbidity were decreased in cesarean delivery without labor compared with induction of labor. Hemorrhagic and traumatic morbidities with labor induction are increased after assisted vaginal delivery and cesarean delivery in labor compared with cesarean delivery without labor.     

Incidence,Indications, and Predictors of Adverse Outcomes of Postpartum Hysterectomies: 20-Year Experience in a Tertiary Care Centre

ObjectivePostpartum hysterectomy is an uncommon yet serious obstetric procedure associated with maternal morbidity and mortality. The objectives of our study were to assess the incidence of and indications for PH and to identify predictors of massive hemorrhage and coagulopathy.MethodsWe conducted a retrospective cohort study on all cases of PH performed at the Jewish General Hospital, McGill University, between 1992 and 2011. Data were collected from individual patient charts and logistics regression models were used to evaluate predictors of adverse events.ResultsOver a 20-year study period, there were 76 938 live births and 67 postpartum hysterectomies for an overall incidence of 0.87/1000. Although overall PH rates increased over time predominantly because of increasing rates of planned PH for placental abnormalities, there was a decrease in unplanned emergency postpartum hysterectomies. The main indications for PH were abnormal placentation (64.2%) and postpartum hemorrhage (26.9%). In adjusted analysis, the risk of requiring massive blood transfusion was increased when PH was performed after vaginal delivery or Caesarean section (OR 102.1; 95% CI 4.22 to 2468) and in association with postpartum hemorrhage (OR 9.1; 95% CI 1.3 to 64.3). The risk of massive hemorrhage was lower if occlusive balloons were placed antenatally in the uterine arteries (OR 0.13; 95% CI 0.03 to 0.68) and if PH was performed by a dedicated experienced surgeon (OR 0.23; 95% CI 0.06 to 0.86).ConclusionAlthough overall rates of PH are increasing, antenatal recognition of placental pathologies have resulted in fewer postpartum hysterectomies being done as emergencies. The use of occlusive balloons in the uterine arteries and having the procedure performed by a dedicated surgeon skilled in performing postpartum hysterectomy can reduce overall serious morbidity.     

妊娠急性脂肪肝的临床诊断及治疗方法

目的 探讨妊娠急性脂肪肝的临床诊断及治疗方法。方法 对上海市公共卫生临床中心1988年1月至2007年7月收治的36例妊娠急性脂肪肝患者的临床资料进行回顾性分析。结果 （1）临床表现：36例妊娠急性脂肪肝患者均发生于妊娠晚期,有明显的临床症状（以恶心、呕吐为主）和实验室检查特征（36例患者全部出现白细胞计数、肝酶及血清总胆红素水平升高,全部出现凝血酶原时间延长及血清白蛋白水平降低）。肝脏B超的阳性检出率为57％（17／30）,肝脏CT的阳性检出率为73％（16／22）,肝脏CT的阳性检出率高于B超（P〈0．05）。（2）分娩方式：阴道分娩12例,其中产后出血发生率为42％（5／12）,孕产妇死亡率为50％（6／12）,围产儿死亡率为50％（6／12）,新生儿窒息发生率为58％（7／12）;剖宫产分娩24例,其中产后出血发生率为42％（10／24）,孕产妇死亡率为8％（2／24）,围产儿死亡率为13％（3／24）,新生儿窒息发生率为38％（9／24）。（3）剖宫产终止妊娠加内科综合支持治疗能明显降低产后出血发生率、孕产妇死亡率、围产儿死亡率、新生儿窒息发生率。剖宫产分娩的孕产妇死亡率及围产儿死亡率与阴道分娩比较,差异有统计学意义（P〈0．05）,剖官产分娩的产后出血发生率及新生儿窒息发生率与阴道分娩比较,差异无统计学意义（P〉0．05）。（4）全部死亡病例均是从发病至接受正规治疗时间超过7d的患者。结论 结合临床症状、实验窀检查特征、肝脏B超、CT检查等,力争在发病1周内明确诊断;立即剖宫产术终止妊娠、积极内科综合支持疗法是改善母儿预后的关键。     

Efficacy of rectal misoprostol as second-line therapy for the treatment of primary postpartum hemorrhage

OBJECTIVE: To assess the efficacy of rectal misoprostol as second-line therapy in the management of primary postpartum hemorrhage (PPH) as compared to methylergonovine maleate. STUDY DESIGN: This was a retrospective cohort study. Charts from July 2000 to February 2005 were reviewed. Inclusion criteria were patients between 37 and 42 weeks' gestational age who received a clinical diagnosis of PPH following delivery of a singleton pregnancy and who required a second uterotonic following initial oxytocin therapy. The control group represented those receiving methylergonovine maleate (18 patients), and the study group consisted of those receiving misoprostol (40 patients). RESULTS: There was no significant difference in maternal age, gestational age, parity or type of delivery between the 2 groups. There was no significant difference between the 2 groups in the need for blood transfusion (methylergonovine maleate group, 0/18 [0%], misoprostol group, 5/40 [12.5%] [p = 0.11]), the need for third-line medical therapy (methylergonovine maleate group, 10/18 [55.5%], misoprostol group, 22/40 [55%] [p = 0.961) or the need for any surgical intervention (methylergonovine maleate, 4/18 [22.2%], misoprostol 5/40 [12.5%] [p = 0.51]). CONCLUSION: This limited study suggests that rectal misoprostol is comparable to methergine as second-line therapy for the treatment of 1 primary postpartum hemorrhage.     

Risk of maternal postpartum readmission associated with mode of delivery

OBJECTIVE: To determine whether cesarean and operative vaginal deliveries are associated with an increased risk of maternal rehospitalization compared with spontaneous vaginal delivery. METHODS: A population-based cohort study was conducted by using the Canadian Institute for Health Information's Discharge Abstract Database between 1997/1998 and 2000/2001, which included 900,108 women aged 15-44 years with singleton live births (after excluding several selected obstetric conditions). RESULTS: A total of 16,404 women (1.8%) were rehospitalized within 60 days after initial discharge. Compared with spontaneous vaginal delivery (rate 1.5%), cesarean delivery was associated with a significantly increased risk of postpartum readmission (rate 2.7%, odds ratio [OR] 1.9, 95% confidence interval [CI] 1.8-1.9); ie, there was 1 excess postpartum readmission per 75 cesarean deliveries. Diagnoses associated with significantly increased risks of readmission after cesarean delivery (compared with spontaneous vaginal delivery) included pelvic injury/wounds (rate 0.86% versus 0.06%, OR 13.4, 95% CI 12.0-15.0), obstetric complications (rate 0.23% versus 0.08%, OR 3.0, 95% CI 2.6-3.5), venous disorders and thromboembolism (rate 0.07% versus 0.03%, OR 2.7, 95% CI 2.1-3.4), and major puerperal infection (rate 0.45% versus 0.27%, OR 1.8, 95% CI 1.6-1.9). Women delivered by forceps or vacuum were also at an increased risk of readmission (rates 2.2% and 1.8% versus 1.5%; OR forceps: 1.4, 95% CI 1.3-1.5; OR vacuum: 1.2, 95% CI 1.2-1.3, respectively). Higher readmission rates after operative vaginal delivery were due to pelvic injury/wounds, genitourinary conditions, obstetric complications, postpartum hemorrhage, and major puerperal infection. CONCLUSION: Compared with spontaneous vaginal delivery, cesarean delivery, and operative vaginal delivery increase the risk of maternal postpartum readmission. LEVEL OF EVIDENCE: II-2.     

Postpartum stroke: a twenty-year experience

OBJECTIVE: The aim of this study was to characterize the clinical presentation, etiology, and acute and subsequent outcomes of postpartum stroke. STUDY DESIGN: This 20-year, single-center, retrospective review included 20 women without previous neurologic deficit with clinical and neuroimaging diagnoses of postpartum stroke. RESULTS: Eight of 20 women (40%) were delivered abdominally. Conduction anesthesia was induced in 9 of 20 women (45%). Causes of stroke included cerebral infarction (n = 13; 7 venous, 6 arterial), intracerebral hemorrhage (n = 5; 1 cocaine-induced, 1 anatomic malformation), cerebritis (n = 1), and cerebral atrophy (n = 1). The median time at onset of stroke was 8 days post partum (range, 3-35 days). Headache, seizures, visual change, and hemiparesis were the most common presenting findings but were neither specific to the underlying pathologic condition nor predictive of ultimate maternal outcome. There were 2 maternal deaths, both caused by severe intracerebral hemorrhage. Intracerebral hemorrhage was associated with the poorest outcome (2 deaths and 1 residual neurologic deficit). Eight women had residual neurologic deficit. There was no correlation between a trial of labor (P =.4; odds ratio, 0.4; 95% confidence interval, 0.01-6.5) or vaginal versus cesarean mode of delivery (P =.6; odds ratio, 1.3; 95% confidence interval 0.1-16.8) and ultimate neurologic diagnosis (cerebral infarction or intracerebral hemorrhage). However, the incidence of cesarean delivery was greater in the cohort of women with postpartum stroke than in the overall obstetric population (P =.015; odds ratio, 3.2; 95% confidence interval, 1.2-8.5). One of the 20 women received methergine; 1 received bromocriptine. All women were either normotensive or had well-controlled hypertension at postpartum discharge. New-onset hypertension or exacerbation of existing hypertension occurred after the acute neurologic insult; subsequent mean (+/-SD) arterial blood pressure was 128.9 +/- 24.0 mm Hg. CONCLUSION: Postpartum stroke is a multifactorial, uncommon, and nonpreventable complication of pregnancy. There was an association between postpartum stroke and hypertensive disorders of pregnancy and cesarean delivery. However, this study refutes any etiologic association between conduction anesthesia and postpartum stroke.     

Uterine compression sutures for postpartum hemorrhage: efficacy, morbidity, and subsequent pregnancy

OBJECTIVE: To review the efficacy, morbidity, and subsequent pregnancy outcome after uterine compression sutures for severe postpartum hemorrhage. METHODS: A 7-year review (2000-2006) of all uterine compression sutures for postpartum hemorrhage at one tertiary obstetric hospital. RESULTS: During the 7 years, 28 uterine compression sutures were performed in 31,519 deliveries (1 per 1,126). All were done at the time of cesarean delivery: 22 in 4,870 cesarean deliveries in labor (1 in 221) and 6 in 3,819 elective cesarean deliveries (1 in 637). The indications for suture were atonic postpartum hemorrhage in 25 of 28 (89%), placenta previa in 2 of 28 (7%), and partial placenta accreta in 1 of 28 (4%). Hysterectomy was avoided in 23 of 28 women (82%). Blood transfusion was needed in 13 of 28 (46%), and intensive care in 5 of 28 (18%). Seven women had subsequent uncomplicated term pregnancies, all delivered by elective repeat caesarean delivery. CONCLUSION: Uterine compression sutures for severe postpartum hemorrhage may obviate the need for hysterectomy and appear not to jeopardize subsequent pregnancy.     

ACOG Practice Bulletin: Clinical Management Guidelines for Obstetrician-Gynecologists Number 76, October 2006: postpartum hemorrhage

Severe bleeding is the single most significant cause of maternal death world-wide. More than half of all maternal deaths occur within 24 hours of delivery, most commonly from excessive bleeding. It is estimated that worldwide, 140,000 women die of postpartum hemorrhage each year-one every 4 minutes (1). In addition to death, serious morbidity may follow postpartum hemorrhage. Sequelae include adult respiratory distress syndrome, coagulopathy, shock, loss of fertility, and pituitary necrosis (Sheehan syndrome). Although many risk factors have been associated with postpartum hemorrhage, it often occurs without warning. All obstetric units and practitioners must have the facilities, personnel, and equipment in place to manage this emergency properly. Clinical drills to enhance the management of maternal hemorrhage have been recommended by the Joint Commission on Accreditation of Healthcare Organizations (2). The purpose of this bulletin is to review the etiology, evaluation, and management of postpartum hemorrhage.     

10年晚期产后出血临床分析

目的探讨引起晚期产后出血的临床原因.方法对1990～1999年在我院分娩,其后发生晚期产后出血的49例产妇的记录资料进行回顾性分析.结果我院晚期产后出血发生率0.12%.母乳喂养与否,在晚期产后出血发生率的差别无显著性(P＞0.10).分娩方式不同,晚期产后出血发生率的差别无显著性(P＞0.5).结论晚期产后出血的主要原因是蜕膜残留和胎盘胎膜残留.     

The American College of Nurse-Midwives' home-based lifesaving skills program: a review of the Ethiopia field test

The Home-Based Lifesaving Skills program (HBLSS) is a family- and community-focused, competency-based program that aims to reduce maternal and newborn mortality by increasing access to basic lifesaving measures within the home and community and by decreasing delays in reaching referral facilities where obstetric complications, such as postpartum hemorrhage and newborn asphyxia, can be managed. HBLSS was field tested in rural southern Ethiopia where over 90% of births take place at home with unskilled attendants. The program review assessed 1) the performance of HBLSS-trained guides; 2) management of postpartum hemorrhage and newborn infection by women, family, and birth attendants; 3) exposure of women and families to HBLSS training; and 4) community support. There was improved performance in management of postpartum hemorrhage, a leading cause of maternal death. Findings for management of newborn infection were less compelling. None of the communities had established reliable emergency transportation. Exposure to HBLSS training in the community was estimated at 38%, and there was strong community support. Organizations incorporating HBLSS into proposals focusing on maternal and newborn health during birth and the immediate postpartum period are encouraged to conduct research necessary to establish the evidence base for this promising new approach.