Effects of peripartum treatment on delivery outcomes in women with primary immune thrombocytopenia: a prospective cohort study / 中华围产医学杂志

Objective:To investigate the effects of peripartum administration of low-dose corticosteroids or intravenous immunoglobulin (IVIG) on delivery outcomes in pregnant patients with primary immune thrombocytopenia (ITP).Methods:This prospective cohort study involved pregnant women (≥34 gestational weeks) who were diagnosed with ITP in Peking University People's Hospital from January 2017 to December 2021. Their platelet counts were between 20×10 9/L to 50×10 9/L without bleeding and none of them had been treated with any medications. All patients were divided into medication group (prednisone or IVIG) and platelet transfusion group based on their preference. Differences in vaginal delivery rate, postpartum hemorrhage rate and platelet transfusion volume between the two groups were compared using t-test, Wilcoxon rank sum test and Chi-square test. Binary logistic regression was used to investigate the factors influencing the rates of vaginal delivery and postpartum hemorrhage. Multiple linear regression was used to analyze the factors influencing the platelet transfusion volume. Results:A total of 96 patients with ITP were recruited with 70 in the medication group and 26 in the platelet transfusion group. The vaginal delivery rate in the medication group was higher than that in the platelet transfusion group [60.0% (42/70) vs 30.8% (8/26), χ 2=6.49, P=0.013]. After adjusted by the proportion of multiparae and the gestational age at delivery, binary logistic regression showed that the increased vaginal delivery rate in patients undergoing the peripartum treatment ( OR=4.937, 95% CI: 1.511-16.136, P=0.008). The incidence of postpartum hemorrhage in the two groups was 22.9% (16/70) and 26.9% (7/26), respectively, but no significant difference was shown ( χ 2=0.17, P=0.789). The median platelet transfusion volume was lower in the medication group than in the platelet transfusion group [1 U(0-4 U) vs 1 U(1-3 U), Z=－2.18, P=0.029]. After adjustment of related factors including the platelet count at enrollment, obstetrical complications and anemia, multiple linear regression showed that the platelet transfusion volume was also lower in the medication group (95% CI:0.053-0.911, P=0.028). Ninety-six newborns were delivered without intracranial hemorrhage. The overall incidence of neonatal thrombocytopenia was 26.0% (25/96). There was no significant difference in birth weight, and incidence of neonatal asphyxia or thrombocytopenia between the two groups. Conclusion:Peripartum therapy in ITP patients may increase vaginal delivery rate and reduce platelet transfusion volume without causing more postpartum hemorrhage.

Maternal and infant outcomes of women with non-severe primary immune thrombocytopenia during two consecutive pregnancies: a self-controlled study / 中华围产医学杂志

Objective:To understand the progress, maternal morbidity, and maternal and infant outcomes in pregnant women with non-severe primary immune thrombocytopenia (ITP) during two consecutive pregnancies.Methods:This study retrospectively analyzed the clinical data of 40 patients with non-severe ITP who had two pregnancies and were treated at Peking University People's Hospital between June 2010 and June 2020. Platelet counts at different stages of pregnancy, treatments, maternal complications and neonatal outcomes were compared with Chi-square test, Fisher's exact test, paired sample t-test, non-parametric Wilcoxon signed rank test, independent sample t-test or non-parametric Mann-Whitney U test. Results:Among the 40 patients, 18 were diagnosed before and 22 were first diagnosed during the first gestation. Platelet counts and treatments in the 18 patients prior to their first conception were not significantly different from those in the 40 patients before their second pregnancy (all P>0.05). No significant difference in the average platelet count and thrombocytopenia severity at each stage of pregnancy, and maternal bleeding score or drug treatment was observed between the two pregnancies (all P>0.05), neither in the incidence of gestational hypertension, gestational diabetes, premature rupture of membranes, premature delivery, or anemia (all P>0.05). The incidences of postpartum hemorrhage and severe postpartum hemorrhage in the second pregnancy were 30.0%(12/40) and 22.5%(9/40), respectively, which were both higher than those in the first gestation [(7.5%(3/40) and 5.0%(2/40); χ2=6.64, 5.17; P=0.010, 0.023]. The amount of postpartum hemorrhage was higher in the second pregnancy than in the first [500 ml(213-795 ml) vs 300 ml(163-400 ml), Z=－2.34, P=0.019]. There was no significant difference in birth weight, the incidence of passive ITP or intracranial hemorrhage, or mortality between the neonates of the first and second pregnancy group (all P>0.05). The lowest platelet count in neonates within one week after birth in the second pregnancy group was (202.2±106.7)×10 9/L, which was lower than that of the first [(222.5±91.8)×10 9/L, Z=－2.04, P=0.041]. Conclusions:Non-severe ITP is not worse in the second pregnancy than in the first. In women with non-severe ITP, the incidence of maternal complications is not increased in the second pregnancy, but the risk of postpartum hemorrhage and the incidence of neonatal passive immune thrombocytopenia are raised.

Perinatal outcomes of paroxysmal nocturnal hemoglobinuria during pregnancy: cases report and literature review / 中华围产医学杂志

Objective:To explore the progression of paroxysmal nocturnal hemoglobinuria (PNH) during pregnancy and treatment for improving maternal and infant outcomes.Methods:Nine pregnant women with PNH were admitted to the Obstetrics Department of Peking University People's Hospital from September 2010 to September 2020. The clinical data of these patients were retrospectively collected and analyzed. Relevant literature was reviewed to summarize the progression, treatment, complications, perinatal outcomes, and follow-up of PNH during pregnancy. Descriptive methods were used for statistical analysis.Results:Among the nine patients, six were classic PNH, and three combined with bone marrow failure disease. Eight cases received blood transfusion/low-dose corticosteroids or combination therapy during pregnancy, and four of them were also received anticoagulants. In seven out of the eight patients diagnosed prenatally, the disease worsened during pregnancy. Complications were noted in eight patients during pregnancy, including fetal growth restriction in seven cases, hypertension and premature delivery in four cases each, thrombosis and intrauterine fetal death in one case each. No maternal deaths were reported, with a live birth rate of 8/9 between 33-38 gestational weeks, with the median at 37 weeks. The median time of postpartum follow-up was 50 months (4-92 months), during which the patients' conditions were all stable, and no abnormalities were found in the growth and development of the babies.Conclusions:Pregnant women with PNH tend to worsen with an increased incidence of perinatal complications and adverse outcomes. Multidisciplinary management is recommended for this population may help improve maternal and infant outcomes.

Maternal and fetal outcomes and related risk factors of 85 cases with aplastic anemia in pregnancy: a retrospective case control study / 中华围产医学杂志

Objective@#To analyze the maternal and fetal outcomes of pregnancies complicated by aplastic anemia (AA) and to investigate the underlying risk factors.@*Methods@#In this retrospective case control study, we retrieved medical records of 85 singleton gravidas with AA (AA group) who were admitted to Peking University People's Hospital from January 2003 to January 2016, and another 340 singleton gravidas (case∶control=1∶4) without blood system or immune system diseases who gave birth at the same period were selected as the control group. Differences in general condition and the incidence of maternal and neonatal complications were compared between the two groups. AA group were further divided into adverse outcome subgroup (n=33) and non-adverse outcome subgroup (n=52), and relevant factors were also analyzed. Statistical analysis was performed using t-test, Chi-square test and logistic regression.@*Results@#No maternal deaths occurred in all 85 cases of AA group, 81 of them gave live birth [one neonate died and the others survived with a mean gestational age of 36+5 weeks (30+2-40+5 weeks)], and 45 developed maternal or fetal adverse outcomes. Compared with the control group, AA group had higher incidences of hypertensive disorders of pregnancy [20.0% (17/85) vs 6.2% (21/340)], acute heart failure [7.1% (6/85) vs 0.0% (0/340)], postpartum hemorrhage [5.9% (5/85) vs 0.9% (3/340)], puerperal infection [2.4% (2/85) vs 0.0% (0/340)], preterm birth [22.3% (19/85) vs 5.6% (19/340)], small for gestational age [11.7% (10/85) vs 0.9% (3/340)], fetal growth restriction [8.2% (7/85) vs 1.2% (4/340)], intrauterine fetal death [4.7% (4/85) vs 0.0% (0/340)] and neonatal death [1.2% (1/85) vs 0.0% (0/340)] (all P<0.05). After adjusting for age, pregnancy history and the time of diagnosis, we found that low median (OR=0.88, 95%CI: 0.83-0.95), mean (OR=0.85, 95%CI: 0.79-0.93) and minimal (OR=0.87, 95%CI: 0.82-0.93) values of hemoglobin concentration during pregnancy, and low median (OR=0.96, 95%CI: 0.92-1.00), mean (OR=0.96, 95%CI: 0.92-1.00) and minimal (OR=0.95, 95%CI: 0.90-0.99) values of platelet counts during pregnancy were risk factors for adverse maternal and fetal outcomes of gravidas with AA (all P<0.05).@*Conclusions@#Maternal and fetal complications are more common in pregnant women with AA and maintain hemoglobin and platelet counts at a certain level may improve the outcomes.

Investigation on incidence of anemia and serum ferritin level among3262 women during second and third trimester / 中华围产医学杂志

ObjectiveTo understand the prevalence of maternal anemia and iron deficiency during the second and third trimesters and their relationship with adverse pregnant outcomes.MethodsData of 3 262 gravidas, who received prenatal care and delivered at Drum Tower Hospital from October 1, 2013 to October 31, 2014, were retrospectively collected and analyzed. Blood routine test was performed for all subjects both at the second (20-22 weeks) and third trimesters (38 weeks of gestation or before delivery) using automatic blood analyzer. Moreover, serum ferritin level was determined at the second trimester with microparticle chemiluminescence immunoassay. Treatment was offered to those diagnosed as iron deficiency anemia or severe iron deficiency, and the adverse pregnancy outcomes were analyzed.Chi-square test and TrendChi-square test were performed for statistics.Results(1) Out of the 3 262 women, 601 (18.42%) were diagnosed as anemia at second trimester, among which 444 (73.88%) recovered at the third trimester after proper treatment. However, there were 285 (8.74%) new-onset anemia pregnancies at last trimester. Thus, the total prevalence of anemia in pregnancy was 27.16% (886/3 262). (2) The mean serum ferritin level at the second trimester was (29.40± 30.12) ng/ml, and 1 565 (47.98%) were diagnosed as iron deficiency at the same period. (3) During the mid-term pregnancies, 345 iron deficiency anemic women were identified, which accounted for 57.40% of all anemic cases in this study. Two hundred and fifty out of the 345 women were cured at the third trimester. However, another 206 new-onset iron deficiency anemic pregnancies were identified at the third trimester. For iron deficiency anemia both at mid- and late-term pregnancy, the prevalence was 16.89% (551/3 262), which accounted for 62.19% (551/886) of all anemic patients. (4) There were more women with microcytic hypochromic anemia in the late-trimester than in the mid-trimester [19.93%(60/301) vs 4.93% (17/345),χ2=34.478,P<0.01]. (5) Among women with serum ferritin≥30,≥20- <30,≥10- <20- <10 ng/ml, the prevalence of mild anemia in mid-trimester was 13.33%(142/1 065), 14.40%(91/632), 14.71%(130/884) and 24.82%(169/681), the prevalence of new-onset anemia in the third trimester was 3.94%(42/1 065), 5.85%(37/632), 12.78%(113/884), and 13.66%(93/681) respectively. The lower the serum ferritin level, the higher the prevalence of anemia in the mid-trimester (χ2trend=30.697,P<0.01) and the new-onset anemia in the last trimester (χ2trend=69.871,P<0.01). (6) The incidence of postpartum hemorrhage in pregnancies with serum ferritin level at≥10 but <20 ng/ml was significantly higher than those normal one [20.39%(52/255) vs 11.92%(75/629),χ2=10.577,P<0.01]. Neither serum ferritin level nor anemia was associated with other adverse pregnancy outcomes.ConclusionsThe incidences of anemia and iron deficiency remain at a high level at the second and third trimesters. The lower the serum ferritin level at mid-trimester, the higher the incidence of anemia.

Trombose de veia renal no puerpério: relato de caso / Renal vein thrombosis in the puerperium: case report

Resumo Durante a gravidez e o puerpério, existe um estado de hipercoagulabilidade sanguínea e, portanto, de risco para eventos tromboembólicos. A trombose de veia renal é uma condição grave, pouco frequente e de difícil diagnóstico. Este estudo relatou um caso de trombose de veia renal numa puérpera, descrevendo caso clínico, fatores de risco, métodos diagnósticos e o tratamento instituído.

Abstract Pregnancy and puerperium are periods of blood hypercoagulability and, therefore, of risk for thromboembolic events. Renal vein thrombosis is a serious and infrequent condition of difficult diagnosis. This study reported a case of renal vein thrombosis in the puerperium, and described the clinical case, risk factors, diagnostic methods, and treatment instituted.

Fatores de associados à anemia em gestantes da rede pública de saúde de uma capital do Nordeste do Brasil / Risk factors associated among anemia in pregnancy women of network public health of a capital of Brazil Northeastern

OBJETIVO: Avaliar os fatores associados à anemia em gestantes atendidas pela rede pública de saúde de uma capital do Nordeste do Brasil.MÉTODOS: Estudo de caráter transversal, envolvendo amostra (n=428) obtida, considerando a prevalência de anemia em gestantes (50%), um intervalo de confiança (IC) de 95%, um erro de 5% e uma perda amostral de 20%, sendo elegíveis gestantes que residiam no município e que eram atendidas pela rede pública de saúde municipal, das quais foram coletados dados socioeconômicos, de estilo de vida, clínicos, de consumo de ferro dietético, antropométricos e medida de hemoglobina capilar. A anemia foi identificada por um nível de hemoglobina <11 g/dL e sua associação com os fatores de risco foi testada por meio de análise de regressão múltipla de Poisson, com os resultados expressos pela Razão de Prevalência (RP) e IC95%.RESULTADOS: A prevalência de anemia foi de 28,3%, sendo maior naquelas gestantes com mais membros no domicílio (RP=1,49; IC95% 1,01-2,22; p=0,046) e naquelas que viviam com insegurança alimentar (RP=1,43; IC95% 1,00-2,04; p=0,047).CONCLUSÃO: A prevalência de anemia nas gestantes atendidas pela rede pública de saúde do município é um problema moderado de saúde pública, tornando necessário o planejamento de medidas efetivas para o seu controle.

PURPOSE: To evaluate the factors associated with anemia among pregnant women receiving public health care in a capital city in Northeastern Brazil.METHODS: This was a cross-sectional study conducted on a sample of 428 patients obtained on the basis of the estimated prevalence of anemia during pregnancy (50%), a 95% confidence interval (95%CI), an error of 5% and a sample loss of 20%. Pregnant women who lived in the city and were served by the municipal public health network were considered to be eligible for the study. Socioeconomic, lifestyle, clinical and anthropometric data and dietary iron intake were obtained, and capillary hemoglobin was determined. Anemia was identified as a hemoglobin level <11 g/dL, and its association with risk factors was tested using multivariate Poisson regression analysis, with the results expressed as the Prevalence Ratio (PR) and 95%CI.RESULTS: The prevalence of anemia was 28.3% and was higher among women with more members in the household (PR=1.49; 95%CI 1.01-2.22; p=0.046) and those living with food insecurity (PR=1.43; 95%CI 1.00-2.04; p=0.047).CONCLUSION: The prevalence of anemia among pregnant women receiving care from the public health system of the city is a moderate public health problem, requiring the planning of effective measures for its control.

Clinical analysis of essential thrombocythemia and pregnancy: treatment and outcomes / 中华围产医学杂志

Objectives To summarize the maternal and fetal outcomes of patients with essential thrombocythemia (ET), and tentatively propose possible solutions for different clinical scenarios.Methods We retrospectively studied the clinical data, treatment, outcomes and follow-up status in 18 consecutive cases of young women with ET visited Peking University People's Hospital, among whom 22 pregnancies occurred from March 2005 to January 2015.Rank-sum test, Chi-square test or Fisher exact test were applied for statistics.Results (1) Out of the total 22 pregnancies, 17 (77％) were successful (term live births) and five (23％) ended in miscarriages, among which four were spontaneous abortion in first trimester.(2) Six pregnancies did not received any therapy, while 16 received various treatments before and/or during pregnancy, including oral Aspirin(single/joint), Hydroxyurea, Interferon-α (IFN-α) and platelet apheresis.(3) Treatments before/during pregnancy improved the live birth rate significantly (15/16 vs 2/6, P=0.009).Platelet (PLT) count of the newborns were all normal till the time at follow-up.(4) The median PLT count in those patients before Aspirin therapy was 761 × 109/L[(448-1 213) × 109/L, and 639× 109/L[(283-1 908) × 109/L] thereafter, which showed no significant difference (Z=-0.405, P=0.686).(5) The PLT counts in those patients before combination therapy of Aspirin and IFN-α was 989 × 109/L[(435-1 504) × 109/L], and 498 × 109/L[(186-559) × 109/L] thereafter, which decreased significantly (Z=-2.366, P=0.018).Conclusions (1) First-trimester spontaneous abortion is the most common complication of ET in pregnancy.(2) A specific treatment strategy may improve the pregnant outcomes without long-term harmful effect up to now.(3) IFN-α and/or Aspirin might be the first-line therapy in women with ET during pregnancy.

Analysis of risk factors for adverse perinatal outcomes in women with pancytopenia / 中华妇产科杂志

Objective To explore the pregnancy outcomes of women with pancytopenia and the risk factors for the adverse perinatal outcomes.Methods A total of 106 pregnant women with pancytopenia were admitted to Peking University People's Hospital from Jan.2005 to Sep.2014.The clinical data and the pregnancy outcomes were reviewed retrospectively to investigate the risk factors for the adverse perinatal outcomes.Results (1)Eighty-four patients were found pancytopenia before pregnancy while 22 were found for the first time during pregnancy.Sixty-four patients were diagnosed as aplastic anemia;30 as myelodysplastic syndrome;2 as paroxysmal nocturnal hemoglobinuria;4 as hypersplenism,and 1 as anti-phospholipid syndrome.Diagnoses of the remaining 5 patients were uncertain.(2)Sixty-nine patients received at least one time blood transfusion before delivery.(3) As for the complications,nine women developed gestational diabetes;twenty-two suffered severe preeclampsia (SPE);two were diagnosed as anemic heart disease and three experienced respiratory tract infection.The postpartum blood loss ranged from 50 ml to 3 800 ml,with the median of 400 ml.And six women had the blood loss more than 1 000 ml.The gestational age at delivery ranged from 24 weeks to 40 weeks,with the median of 37.0 weeks.(4)Thirty-one patients suffered adverse perinatal outcomes,including 3 cases of intrauterine death,4 therapeutic labor induction before 28 gestational weeks,6 premature delivery before 34 weeks.There were 2 neonates complicated with intracranial hemorrhage,2 with neonatal respiratory distress syndrome,3 with hypoxic-ischemic encephalopathy,2 with severe asphyxia and death,and 14 with small for gestational age.Among the patients with adverse perinatal outcomes,26 women received blood transfusion during pregnancy and 17 developed SPE.The maximum and the minimum value of their white cell count (WBC),hemoglobin concentration (Hb) and blood platelet count (BPC) were (4.9± 1.4)× 109/L,(2.9±0.8)× 109/L,(88.6± 14.9) g/L,(57.9 ± 14.5) g/L,(47.7±27.4)× 109/L and (11.9 ± 12.3)× 109/L,respectively.For those patients without adverse perinatal outcomes,43 received blood transfusion during pregnancy and 5 developed SPE.The maximum and the minimum value of their WBC,Hb and BPC were (5.2±1.5)×109/L,(3.2±0.9)×109/L,(101.4±16.2) g/L,(71.9 ± 14.5) g/L,(52.3 ± 24.0)× 109/L and (19.0 ± 12.1)× 109/L,respectively.The multivariate regression analyses indicated that SPE,Hb less than 70 g/L and BPC less than 20× 109/L were the independent risk factors for the poor perinatal outcomes in pregnant women with pancytopenia (P＜0.05).Conclusions The incidence of adverse perinatal complications increased dramatically in pregnant women with pancytopenia.Concurrent SPE,minimum Hb less than 70 g/L and minimum BPC less than 20 × 109/L may be the independent risk factors for the adverse perinatal outcomes.

Analysis of risk factors for preeclampsia in pregnancies complicated with chronic aplastic anemia / 中华妇产科杂志

Objective To investigate the risk factors for preeclampsia (PE) in pregnancies complicated with chronic aplastic anemia ( CAA ) by analyzing the obstetric management and pregnancy outcome.Methods Retrospectively review the clinical data including the obstetric management,the laboratory findings and the pregnancy outcome of 41 pregnant women complicated with CAA,all of whom were hospitalized in Peking University People's Hospital from May 2002 to February 2011.Multiple logistic regression was used to explore the risk factors associated with PE.Results ( 1 ) Twenty-eight patients were diagnosed before conception while 13 were diagnosed during gestation.Eleven patients including all the 7 who were categorized as severe CAA presented with mild bleeding in the third trimester.( 2 ) The medians of white blood cell counts,hemoglobin concentrations and platelet counts were 5.0 × 109/L,66.0 g/L and 12.0 × 109/L respectively.(3) The obstetric management consisted of strict assessment, intensive surveillance and follow-up,appropriate supportive measures,timely recognition of complications,and delivery when necessary.Twenty-one patients received supportive transfusions.Ten patients developed PE,all of whom were diagnosed as severe PE( SPE).Twelve patients suffered postpartum hemorrhage,and 3 of them had blood loss more than 1000 mL All were conservatively treated in success.(4) The median gestational age of delivery was 37 weeks.Sixteen cases delivered before 37 weeks and 5 delivered before 34 weeks.Two patients developed SPE at 29 weeks and 30 weeks respectively,and both of the neonates died for severe asphyxia.The birth weight of the live neonates ranged from 1500 to 3660 g.(5) The postpartum follow-up period ranged from 6 months to 7 years.Thirty-three patients got improvement without dependence on transfusions.Four achieved no remission and still needed intermittent transfusions.Four were lost in followup.(6) Significant differences were found in the bleeding tendency,the platelet counts and the delivery weeks when comparing the patients developing PE and those without PE.No differences were found with regard to the age,the gestational age of first visit,the percentage of patients diagnosed before conception,the percentage of severe CAA,the choice of treatment,the white blood cell counts and the hemoglobin level.The Multiple logistic regression showed that the platelet count less than 10 × 109/L was an independent risk factor for CAA patients developing PE (P =0.006).Conclusions Most pregnancies complicated with CAA could achieve good maternal and fetal outcome, when intensive prenatal care and supportive management are provided SPE is the most common complication.The platelet count less than 10 × 109/L is perhaps an independent risk factor for CAA patients developing PE.

Perinatal outcomes of pregnancies complicated with varying degrees of thrombocytopenia / 中华围产医学杂志

Objective To investigate the perinatal outcomes of pregnancies complicated with varying degrees of thrombocytopenia.Methods Clinical data of 305 pregnant women with thrombocytopenia,who admitted to Peking University People's Hospital from January 1,2000 to January 31,2010 were retrospectively analyzed.The etiological diagnosis of them were gestational thrombocytopenia (GT),idiopathic thrombocytopenic purpura (ITP) or undetermined.The patients were divided into 4 groups according to the minimal level of platelets in pregnancy ( platelets count was lower than 100 ×109/L at least twice) : groupⅠ,(50-100) ×109/L (n=101) ; group Ⅱ,(30-50) × 109/L (n = 85); group Ⅲ,(10-30) × 109/L (n = 87); group Ⅳ,< 10 × 109/L (n = 32).Demographic data such as pregnancy complications,treatment,neonates and follow-up results of the patients in each group were compared with ANOVA,Spearman rank correlation analysis,Chirsquare test and Chi-square trend test in SPSS 17.0.Results Medical complications in pregnancy of these patients included hypertensive disorder complicating (n = 35,11.48%) and abnormal glucose metabolism (n=23,7.54%),no difference was found in the incidence of these diseases among the four groups.There were 68 patients complicated with anemia (22.30%),40 preterm delivery (13.11%),60 postpartum hemorrhage (19.67%); there were significant differences in the incidence among the four groups (P＜0.05),the incidence increased with the aggravation of thrombocytopenia (P＜0.05).There were 2 cases of puerperal infection (0.66%),no maternal deaths.Fifty-one patients (16.72%) accepted treatment of corticosteroids or Gamma globulin during pregnancy.There were 116 cases (38.03%) of vaginal delivery and 189 cases (61.97%) of cesarean section.The postpartum bleeding amount within 24 hours increased with the aggravation of thrombocytopenia.Two hundred and eleven (69.18%) patients were followed up and platelet count regained normal,among which 152 cases recovered within six months after delivery.The recovery rates were 90.59% (77/85),82.36% (42/51),46.16% (24/52) and 39.13% (9/23) from group Ⅰ to group Ⅳ,as declined with the aggravation of thrombocytopenia in pregnancy ( x2trend = 42.616,Ptrend =0.000).Among the 306 perinatal fetuses,neonatal outcomes included 301 live births,5 fetal deaths,4 early neonatal deaths,4 low birth-weight infants after term birth,1 intracranial hemorrhage and 18 (5.98%) neonatal thrombocytopenia cases.Incidence of neonatal thrombocytopenia increased with the aggravation of maternal thrombocytopenia.Sixteen cases of neonatal thrombocytopenia recovered at 3-8 weeks after birth,but two cases did not recover within three years during followed up.Conclusions The perinatal outcomes are different in pregnancies complicated with varying degrees of thrombocytopenia.As thrombocytopenia in pregnancy become worse,the risk of anemia,premature delivery,postpartum hemorrhage and neonatal thrombocytopenia increases.While,perinatal outcomes may be better under close perinatal care.

Etiology and clinical characteristics of pregnancy-emerged thrombocytopenia / 中华妇产科杂志

Objective To investigate the etiology and clinical characteristics of pregnancy-emerged thrombocytopenia.Methods A retrospective analysis was conducted on clinical data of 159 pregnancies with thrombocytopenia,who were admitted to Peking University People's Hospital from January 2000 to January 2010.All the patients recruited in this study had no history of blood or immune system disease before pregnancy,and thrombocytopenia was the predominate clinical manifestation during pregnancy,with platelet counts less than 100 × 109/L at least twice during pregnancy.The thrombocytopenia should not be induced by drugs,viral infections,preeclampsia or hemolysis,elevated liver enzymes,and low platelets syndrome (HELLP).All cases were followed up.The general condition,the onset time of thrombocytopenia,platelet changes,accompany symptoms,maternal and perinatal outcomes as well as follow-up conditions were compared based on the etiology.Results ( 1 ) Etiology:among the 159 cases,101 (63.5％) were diagnosed gestational thrombocytopenia (GT) ;43 ( 27.0％ ) were idiopathic thrombocytopenic purpura(ITP) ;9 ( 5.7％ ) were blood system diseases,including 4 cases of megaloblastic anemia( MA ),2 cases of aplastic anaemia (AA),and 3 cases of myelodysplastic syndrome(MDS).Six cases (3.8％)were diagnosed immune system diseases,including 3 cases of systemic lupus erythematosus ( SLE),2 cases of antiphospholipid syndrome (APS),and 1 case of Evans syndrome.(2)Maternal and perinatal outcomes:pregnancy induced hypertension was diagnosed in 21 cases ( 13.2％ ),abnormal glucose metabolism in 13 cases ( 8.2％ ),anemia in 44 cases ( 27.7％ ) and preterm delivery in 18 cases ( 11.3％ ).Twenty-nine cases ( 18.2％ ) were treated with corticosteroids or gamma globulin during pregnancy.The average gestational week was 38 weeks.Fifty-five cases ( 34.6％ ) underwent vaginal delivery,104 cases ( 65.4％ ) received cesarean section.Postpartum hemorrhage was observed in 34 cases (21.4％),and puerperal infection happened in 2 eases ( 1.3％ ).No maternal death was found.In a total of 160 fetuses (including twins),there were 157 live births.Three cases of fetal death and 2 cases of early neonatal deaths were observed.Fetal growth restriction was observed in 4 cases,and neonatal thrombocytopenia was seen in 6 cases.No intracranial hemorrhage was detected.(3)The onset time of thrombocytopenia:among the 159 cases,29 cases ( 18.2％ ),67 cases (42.1％ ),63 cases (43.6％) of thrombocytopenia were detected in the first,second and third trimester,respectively.There was a significant difference of the onset time of thrombocytopenia between GT and ITP groups( P ＜ 0.05 ).Patients with GT tended to have a later onset of thrombocytopenia,which mainly happened in the second and third trimester,while patients with ITP tended to happen in the first and second trimester.(4)The degree of thrombocytopenia:the cases with the minimum platelets level of (51 - 100) × 109/L,(31 - 50) × 109/L,( 10 - 30) × 109/L,＜ 10 × 109/L during pregnancy were 75 (47.2％ ),39 (24.5％ ),31 ( 19.5％ ),14( 8.8％ ) respectively.There was a significant difference between GT and ITP groups in the lowest platelets level (P ＜ 0.01 ).(5)Thrombocytopenia accompany with anemia:among the 159 cases,there were 44 cases (27.7％ ) accompanied with anemia.The proportion was 9.9％ ( 10/101 ) in GT group,58.1％ (25/43) in ITP group,with significant difference(P ＜0.01 ).Anemia was also found in 5 cases in blood system disease group (5/9),and 1 case in immune system disease group (Evans syndrome,1/6).Pancytopenia was observed in 2 cases with ITP (4.7％,2/43 ) and 3 cases with blood system disease ( AA:1 cases,MA:2 cases,3/9).(6) The recovery of the platelets counts postpartum:the postpartum follow-up periods were 7 months to 10 years.Patients recovered within 1 week,6 weeks,6 months postpartum were 66 cases ( 41.5％ ),43 cases ( 27.0％ ),17 cases ( 10.7％ ) respectively.The platelets counts did not recover within 6 months postpartum in 33 cases(45.7％ ).Conclusions GT is the leading cause of pregnancy-emerged thrombocytopenia followed by ITP.There are significant differences between GT and ITP in the onset time of thrombocytopenia,the lowest platelets level,the proportion of anemia accompanied and the postpartum recovery.Other etiologies including immune and blood system diseases are rare.The relevant examinations should be taken for etiology and differential diagnosis.

Clinical analysis of pregnancy complicated with severe thrombocytopenia / 中华妇产科杂志

Objective To investigate the etiology and perinatal outcome of pregnancies complicated with extremely severe thrombocytopenia [ at least two times of platelets count (PLT) < 10 × 109/L during pregnancy]. Methods Clinical data, including basic information, etiology, management and outcomes of pregnant women with extremely severe thrombocytopenia, admitted to Peking University People's Hospital from January 2004 to March 2009, were retrospectively collected. The management of these cases varied according to different etiology and the symptoms: (1) PLT were maitained > 20 × 109/L and hemoglobulin> 70 g/L in those women without spontaneous bleeding; (2) PLT transfusion would be required when PLT< 10 × 109/L or bleeding occur and RBC would be supplied when hematocrit <25% and hemoglobulin <70g/L; (3) Hemoglobulin should be > 70 g/L and PLT >30 × 109/L before cesarean section or delivery;(4) Predinisone and/or intravenous immunoglobulin G (IVIG) would be given in women complicated with idiopathic thrombocytopenic purpura (ITP) when PLT < (20-30) × 109/L or bleeding. PLT would be given if all the above management were failed, or PLT < 10 × 109/L, or bleeding. Women without bleeding would be closely monitored and delivery would be planned. Results (1) Twenty-six cases were identified among 9302 deliveries during the study period (0.28%), with an average of maternal age of 29. Seventeen were diagnosed before conception and 9 during pregnancy. Among the 26 women, half received regular prenatal check in our hospital and the average gestations at diagnosis was 24 weeks and the other half without regular prenatal visits and the average gestations at diagnosis was 32 weeks. Etiology was identified in 24 out of the 26 women, including 14(54%) ITP, 5 myelodysplastic syndrome (MDS), 4 chronic aplastic anaemia(CAA) and 1 systemic lupus erythematosus (SLE). (2) Management: All of the 26 women received blood products. Among the 14 ITP cases, 6 received predinisone and IVIG and 8 only took predinisone. Nine of the 26 patients (35%) had pregnant complications, among which 6 (6/9) were preeclampsia. The overall average gestation at delivery was 36 weeks. Only 2 delivered vaginally with the average blood loss of 83 ml and 23 cesarean sections were performed with the average blood loss of 410 ml. (3) Perinatal outcomes:There were 26 perinatal babies, among which 1 died intrauterine and 25 were born alive (12 preterm infants). The average birth weight was 2877 g. Neonatal severe thrombocytopenia presented in 2 newborns whose mother complicated with ITP. Conclusions The main cause of extremely severe thrombocytopenia during pregnancy is ITP, managed mainly by predinisone and IVIG, followed by CAA and MDS, which may require supportive treatment. Pregnancy complicated with extremely severe thrombocytopenia is not an indication of termination. Better maternal and fetal outcomes can be achieved through proper treatment based on the etiology, intensive care in prevention and management of complications and cesarean section.

Clinical analysis of eleven patients with chronic myeloproliferative disorders complicating pregnancy / 中华妇产科杂志

Objective To investigate the clinical characteristics, the antenatal management, the outcome and prognosis of chronic myeloproliferative disorders (CMPD) complicating pregnancy. Methods Retrospectively analyze the clinical data of eleven patients with CMPD complicating pregnancy hospitalized in Peking University People' s Hospital from 2000 to 2009, including five patients with essential thrombocythemia, one with primary myelofibrosis and five with chronic myeloid leukemia. Results (1)Five pregnancies had periodic antenatal care and laboratory monitorings like full blood count. Reasonable anti-coagulation therapy was given to prevent the complications. One patient with PMF diagnosed before conception had her first pregnancy ended with mild pre-eclampsia and intrauterine death at the gestational age of 32 weeks. During the first trimester of her second pregnancy two years later, the test for anti-β2 glycoprotein antibody was positive. She received low-dose aspirin and low-molecular-weight heparin as anticoagulants. An uneventful course was obtained and she delivered a healthy term infant. (2) Five pregnancies had occasional antenatal examination, including two patients with ET and three patients with CML One patient with ET developed severe pre-eclampsia at the gestational age of 25 weeks. Umbilical artery Doppler showed reversed end-diastolic velocity. The management with anti-convulsants, antihypertensives and anti-coagulants showed no effect. An emergency cesarean section had to be performed because of the aggressive hypertension and placental abruption, with still birth as a result. Two pregnancies never had an antenatal care. Both of them were admitted on labor and the diagnoses of CML were made. (3)Four pregnancies developed oligohydramnios and three developed preelampsia(two severe pre-eclampsia and one mild pre-eclampsia). There was no other hemorrhage and thrombosis event. (4) Eight pregnancies reached full-term with four cesarean sections and four vaginal births. Two preterm cesarean sections were performed because of a progressive oligohydramnios. The ten live neonates weighed 1820 - 3600 g. All were appropriate for gestational age, except one fetal growth retardation (FGR) developed in one patient with severe pre-eclampsia. (5) As for the CMPD, the eleven patients were all in stable conditions. Three patients with CML received hydroxyurea in the third trimester, four with ET and one with CML had plateletpheresis before delivery with favorable effect. All patients were uneventful postpartum, except one with CML who died in 5 months after childbirth. Conclusions The pregnancy outcomes for patients with CMPD are mostly good. However, antenatal care should pay more attention to the complications such as thromboembolic accidents, pre-eclampsia, still birth and fetal growth retardation. Management including reasonable anticoagulation therapy should be considered, which may help improve the prognosis.

Púrpura trombocitopênica trombótica associada à gravidez: relato de caso / Thrombotic thrombocytopenic purpura associated with pregnancy: case report

A púrpura trombocitopênica trombótica (PTT) é uma entidade rara em pacientes críticos. Relatamos um caso clínico de paciente gestante admitida em unidade de terapia intensiva obstétrica com quadro de alteração de sensório, atribuído inicialmente à doença hipertensiva da gravidez. Evoluiu com piora do quadro geral caracterizada por anemia e plaquetopenia grave, suscitando a investigação diagnóstica de púrpura trombocitopênica trombótica após o reconhecimento do perfil hematológico. Os autores enfatizam a importância do conhecimento da doença como marcador de prognóstico para pacientes obstétricas, em vista da semelhança com outras patologias comuns ao ciclo gravídico-puerperal e o fato do diagnóstico e tratamento precoce serem determinantes para o desfecho.

Case report of a patient with 37-week gestational age admitted to an obstetric intensive care unit with an altered level of consciousness, related primarily to the pregnancy-induced hypertension. The patient presented a worsening clinical course characterized by, anemia and severe thrombocytopenia, Investigation led to a diagnostic of thrombotic thrombocytopenic purpura after the hematological profile was assessed. The authors emphasize the importance of the disease recognition as a prognostic marker for obstetric patients, in view of the similarity with other common morbidities during pregnancy and the importance of timely diagnosis and early treatment as determinant factors for the outcome.

Clinical analysis of bicytopenia and pancytopenia during pregnancy / 中华妇产科杂志

Objective To investigate the diagnosis, management, pregnancy outcome and prognosis of bieytopenia or pancytopenia during pregnancy. Methods Retrospective chart review was conducted on 24 pregnancies who were found bicytopenia or pancytopenia during pregnancy for the first time. The diagnoses were reconfirmed. The management and pregnancy outcome were collected. And the prognoses were followed. Results According to the clinical data and laboratory findings, the latter including complete blood cell count, reticulocyte count, peripheral smear, serum folate and vitamin B12 level, autoimmune antibody screening, bone marrow smear and biopsy, thirteen patients were diagnosed as having chronic aplastic anemia (CAA), six as having myelodysplastic syndromes (MDS), two as having megaloblastic anemia(MA), one as having paroxysmal nocturnal hemoglobinuria(PNH), one as having Evan's syndrome and one as having acute leukemia. The management basically consisted of supportive transfusions. Six patients suffered pregnancy complications including four with severe preeclampsia (one with intraeranial hemorrhage and one with intrauterine death concomitantly) and two with gestational diabetes. The delivery ages of the 21 patients were term or nearly term with all good neonatal outcomes. Postpartum follow-up showed the two patients with MA achieved complete remission, the one with PNH had mild anemia and that with Evan's syndrome had mild thrombocytopenia. The patient with acute leukemia died of recurrence six months postpartum. Of the thirteen patients with CAA, two achieved complete remission, six partial remission, four no remission and one was lost follow-up. Of the 6 patients with MDS, one achieved partial remission, four no remission, and one transformed into acute monocytic leukemia, then refused chemotherapy and was lost follow-up. Conclusions CAA may be one of the most common causes of bicytopenia or pancytopenia during pregnancy, MDS may be the second. Diagnosis should be made as soon as possible through appropriate and reasonable laboratory examinations. Most patients could achieve good pregnancy outcomes through supportive management. The maternal prognosis may vary widely depending on the causes.

Prevalência e fatores associados à anemia em gestantes da região semi-árida do Estado de Alagoas / Prevalence and factors associated with anemia in pregnant women from the semiarid region of Alagoas, Brazil

OBJETIVO: determinar a prevalência e fatores de risco associados à anemia em gestantes da região semi-árida de Alagoas. MÉTODOS: estudo de caráter transversal envolvendo amostra (n=150) obtida, considerando a prevalência estimada pela Organização Mundial da Saúde de 52 por cento, com erro de 8 por cento e intervalo de confiança de 95 por cento. O processo de amostragem foi realizado em três estágios: 15 dentre os 38 municípios da região, quatro setores censitários por município e 24 domicílios por setor. Nestes, eram elegíveis todas as gestantes residentes, das quais se coletaram dados socioeconômicos, demográficos, antropométricos e de saúde. A anemia foi identificada por um nível de hemoglobina <11 g/dL e sua associação com os fatores de risco foi testada por meio de análise de regressão linear múltipla. RESULTADOS: a prevalência de anemia foi de 50 por cento. Setenta e oito por cento das gestantes estavam sob acompanhamento pré-natal. Destas, 79,3 por cento se encontravam no segundo ou terceiro trimestre de gestação. Contudo, apenas 21,2 por cento faziam uso de suplemento de ferro. As variáveis associadas (p<0,05) de forma independente à anemia (gestantes anêmicas versus não anêmicas) foram: maior número de membros na família (4,5±2,3 versus 4,3±2,3; p=0,02), menor faixa etária da gestante (23,9±6,3 versus 24,7±6,7; p=0,04), bem como de seu companheiro (34,5±15,8 versus 36±17,5; p=0,03), não possuir vaso sanitário em casa (30,7 versus 24 por cento; p<0,001), história de perda de filho por abortamento e/ou mortalidade (32,4 versus 16,4 por cento; p<0,001), residência em zona rural (60 versus 46,7 por cento; p=0,03), renda per capita

PURPOSE: to determine the prevalence and risk factors associated to anemia in pregnant women from the semiarid region of Alagoas, Brazil. METHODS: transversal study comprising a sample (n=150) obtained taking into consideration the prevalence estimated by World Health Organization of 52 percent, an error of 8 percent and a confidence interval of 95 percent. Sampling has been done in three stages: 15 towns among the 38 in the region, four census sectors by town and 24 residences by sector. All the resident pregnant women were eligible, and their socio-economic, demographic, anthropometric and health data have been collected. Anemia was identified at the <11 g/dL hemoglobin level (Hemocue®), and its association with risk factors, tested by multiple linear regression analysis. RESULTS: anemia prevalence was 50 percent. Seventy eight per cent of the pregnant women were under pre-natal care. From those, 79.3 percent were in the second or third trimester of gestation. Nevertheless, only 21.2 percent of them were taking iron supplementation. Variables (p<0.05) independently associated with anemia (anemic versus not-anemic pregnant women) were: larger number of family members (4.5±2.3 versus 4,3±2.3; p=0.02), lower age group of the pregnant woman (23.9±6.3 versus 24.7±6.7; p=0.04), or of her partner (34.5±15.8 versus 36±17.5; p=0.03), no toilet in the house (30.7 versus 24 percent; p<0.001), history of child abortion and/or death (32.4 versus 16.4 percent; p<0.001), living in the country (60 versus 46.7 percent; p=0.03), average per capita income

Clinical Analysis of 40 Cases of Idiopathic Thrombocytopenic Purpura with Pregnancy / 中华围产医学杂志

Objective To evaluate the diagnosis and the optimal management of idiopathic thrombocytopenic purpura(ITP) with pregnancy and the related high risk factors with neonatal passive immune thrombocytopenia(PIT) occurring in infants born to mothers with ITP. Methods Medical records of 40 pregnant women with ITP and their neonatal outcomes were reviewed retrospectively from 1992.2 to 2001.8 in our hospital. Results The incidence of pregnancy with ITP was 3.4‰. The maternal complications included pregnancy-induced hypertension syndrome (17.5%), postpartum hemorrhage (15%), preterm labor (12.5%), gestational diabetes(7.5%) and FGR (7.5% ). One mother died at 36 weeks of gestational age. There were 13 cases delivered by vagina and 27 cases delivered by cesarean section. Nine neonates(28.1%)had neonatal PIT, Among them three neonates (9.3%) had severe PIT, One neonate(2.5%) had an intracranial hemorrhage(ICH) and two perinatal death (5%)occured in 40 neonates. No significant correlation was found between neonatal platelet counts and maternal platelet counts, maternal PAIgG values and maternal treatments respectively. Conclusion The prognosis of mothers and neonates in pregnancy with ITP are better. The incidence of severe fetal or neonatal PIT is low and not related to maternal platelet counts, maternal treatments and PAIgG values.

Evaluation on consistency of diagnostic indexes for iron deficiency anemia in pregnant women / 中华全科医师杂志

Objective To evaluate the consistency of hemoglobin (Hb) as an diagnostic index for iron deficiency anemia (IDA) in pregnant women with serum ferritin (SF) and free erythrocyte protoporphyrin (FEP).Methods Hb,SF and FEP were assayed for 506 pregnant women with various gestational weeks for the diagnosis of IDA with Hb

La hemostasia en el embarazo / Hemostasia in pregnancy

En el embarazo se producen alteraciones del mecanismo hemostático que determinan condiciones particulares, las cuales propician la activación de este sistema biológico ante estímulos que en otra situación serían adecuadamente controlados por el organismo. Se ha comprobado que en el embarazo existe un estado de hipercoagulabilidad, por lo que se ha incluido en el grupo de las llamadas trombofilias adquiridas. En la tendencia trombótica del embarazo intervienen decisivamente elementos esenciales del mecanismo hemostático, el sistema de la coagulación, las plaquetas y el mecanismo fibrinolítico. Durante la gestación, se ha observado un aumento progresivo del fibrinógeno y los factores VII, VIII, IX y von Willebrand, complejos solubles de fibrina, complejos trombina-antitrombina y fragmentos 1 + 2 de la protrombina. También se ha encontrado disminución de la proteína C y de la proteína S, así como un aumento de la agregación plaquetaria, reducción de la capacidad de respuesta a la estimulación por la prostaciclina y disminución de la formación de AMP C. El embarazo ejerce un efecto notable sobre el sistema fibrinolítico fundamentalmente por aumento progresivo del inhibidor del activador del plasminógeno tipo 1 (PAI-1) y el inhibidor del activador del plasminógeno tipo 2 (PAI-2).

There are hemostatic mechanism alterations in pregnancy that determine particular conditions which facilitate the activation of this biological system before stimuli that otherwise would be adequately controlled by the body. It has been confirmed that there exists hypercoagulability in pregnancy, therefore it has been included in the group of the so called acquired thrombophilias. Basic elements of the hemostatic mechanism, the coagulation system, platelets and fibrinolytic mechanism affect in a decisive way the thrombotic trend of pregnancy. During pregnancy, a series of changes is observed in the clotting mechanism such as progressive increase of fibrinogen and factors VII, VIII, IX and von Willebrand, soluble fibrin complexes, thrombin-prothrombin complexes and 1 + 2 fragments of prothrombin. A decrease in protein C and protein S has also been found. Platelets play an important role in the thrombotic trend during pregnancy, also an increase of platelet aggregation, a reduction of responsive capacity to activation by prostacycline and a decline in AMPc formation have been observed. Pregnancy has a remarkable effect on the fIbrinolytic system, fundamentally due to a progressive increase of type-1 plasminogen activator inhibitor (PA1-I) and the type-2 plasminogen activator inhibitor (PAI-2).