Anemia In Pregnancy: Examining Missed Diagnoses and Racial Disparities in the Upper Midwest.

Anemia in pregnancy (AIP) is associated with poor maternal/fetal outcomes. The prevalence of AIP globally ranges from 44-53% and varies drastically depending on maternal race/ethnicity and other factors. Screening and treatment of AIP is disputed. This study is a retrospective review of electronic medical records (EMR) of pregnant adults over three years (2018-2020, inclusive) of Sanford Health, a large healthcare system in the upper Midwest. AIP was determined by either diagnosis or lab values (hemoglobin, hematocrit, and ferritin) overlapping with pregnancy. A missed diagnosis was characterized by confirmed anemia through lab values but lacking a diagnosis of anemia within EMR. A total of 35,498 patients were included in this study, 42.9% were determined to have AIP. Of AI/AN (American Indian/Alaska Native) patients, 58.3% were anemic and 55.1% of Black/African American patients were anemic compared to 40.0% of anemic white patients. Of anemic patients, 81.1% did not have an anemia diagnosis listed in EMR. This study identifies racial and ethnic disparities of AIP among patients in the upper Midwest. In addition, this study highlights the need for improved data integrity within EMR.

Relationship between patient ethnicity and prevalence of anemia during pregnancy and the puerperium period and compliance with healthcare recommendations - implications for targeted health policy.

BACKGROUND: Anemia is common during pregnancy and the puerperium. The association of ethnicity as well as other characteristics with anemia and compliance with healthcare recommendations has not been studied sufficiently and needs to be explored in order to implement a targeted health policy. We examined the association between ethnicity and the risk for prenatal and puerperium anemia and the compliance with healthcare recommendations. This effort aims to guide reforms in policies and practices that will assist in decreasing anemia prevalence in Israel. METHODS: This study was a secondary analysis of a prospective cohort study database including 1558 women who delivered vaginally at Emek Medical Center. Anemia was assessed before delivery by obtaining a complete blood count (CBC). After delivery, CBCs were taken in cases of postpartum hemorrhage, symptoms consistent with anemia, prenatal anemia or other clinical indications. The study population was divided according to their ethnicity (Jews and Arabs). The primary outcomes were anemia before delivery, anemia in the immediate postpartum and 6 weeks postpartum, and compliance with healthcare recommendations, which was defined as the rate of women who performed a routine CBC test 6-weeks-postpartum. RESULTS: The rates of anemia before delivery and in the puerperium period were similar between Jews and Arabs (before delivery: 88 (11%) versus 98 (14%); 6 weeks postpartum: 55 (21%) vs 68 (28%), respectively;p > 0.05). Iron supplementation was high in both groups during pregnancy (~ 90%) and lower during the postpartum for Jews compared to Arabs (72% vs 83%,respectively; P < .0001). Only one third of the patients performed a CBC 6-weeks-postpartum regardless of ethnicity. CONCLUSION: Overall compliance with health recommendation was high during pregnancy but low postpartum and was reflected in anemia persistence regardless of ethnicity. Because of the adverse long term impact of anemia on patient's health, new policies need to be developed to improve patient's compliance postpartum. A possible strategy is to combine the follow-up of the mother with the one of the newborn in the family health stations (Tipat Halav) and the community clinics similarly to the close follow-up during pregnancy. Additional methods may include active summoning for CBC test and assuring iron supplement consumption.

Postpartum haemorrhage in women with mild factor XI deficiency.

INTRODUCTION: With the advent of direct-to-consumer genetic testing, mild factor XI deficiency is increasingly recognized. There are limited data regarding the risk of postpartum haemorrhage (PPH) among women with mild FXI deficiency following obstetrical delivery. AIM: To assess the risk of PPH among women with mild FXI deficiency undergoing vaginal or caesarean delivery. METHODS: We conducted a retrospective, case-control study, in women with FXI levels between 20% and 70% of normal. For a control population, delivery outcomes were analysed in 200 women (between 2016 and 2018) without known bleeding disorders. RESULTS: There was no PPH among 45 vaginal deliveries in women with mild FXI deficiency compared with one PPH among 125 vaginal deliveries in the control cohort. The rate of PPH was significantly higher among the 26 caesarean deliveries in women with mild FXI deficiency relative to 75 control caesarean deliveries (odds ratio 2.73, 95% CI 1.02-7.26, P = .04). Prior history of haemorrhage was a strong predictor of PPH following caesarean delivery. All women who developed PPH following caesarean delivery had either a history of haemorrhage or independent risk factor for PPH. CONCLUSION: Due to the low rates of postpartum haemorrhage following vaginal delivery, routine prophylaxis to prevent postpartum haemorrhage in the setting of mild FXI deficiency does not appear warranted, especially in the absence of a bleeding history. Mild FXI deficiency is associated with an increased risk of PPH following caesarean delivery.

A Rare Prothrombin Gene Mutation C20209T in a South African Patient with Pulmonary Embolism in Pregnancy: a Case Study and Systematic Review.

BACKGROUND: The G202010A prothrombin gene mutation is a documented prothrombotic risk factor in Caucasian patients. Several other mutations have been described within the prothrombin gene, predominantly in non-Caucasians, including the C20209T mutation. The clinical significance of this mutation is uncertain, but it has been associated with thrombotic events and pregnancy complications. METHODS: We describe a 28-year-old black South African woman who presented with pulmonary embolism during pregnancy. She was investigated for underlying prothrombotic biomarkers. RESULTS: Genetic screening for the prothrombin G202010A mutation by real-time polymerase chain reaction and melting curve analysis demonstrated an atypical mutant peak. Sequencing confirmed a variant C20209T prothrombin mutation. CONCLUSIONS: This is the first report of the C20209T mutation in the Southern African population. It remains uncertain whether genetic testing should be offered routinely to non-Caucasian patients in a resource-limited setting.

Outcome of Pregnancy in Saudi Women with Sickle Cell Disease Attending the Tertiary Care University Hospital in Eastern Province of Saudi Arabia.

Sickle cell disease (SCD) is a chronic genetic hematological disorder with multiorgan involvement and is associated with complications during the pregnancy. This is a well-known disorder in Saudi Arabia, but no study has reported its outcomes in pregnant Saudi females of the Eastern region. This study was carried out to compare the fetomaternal outcome in patients with SCD with those without SCD. This was a retrospective cohort study done in the Eastern Province of Saudi Arabia in a tertiary care, teaching hospital, by retrieving the data through the code ICD-9 for SCD, the control group was also selected with comparable characteristics. A total of 302 SCD pregnant patients were included for comparison with 600 pregnant women without SCD as control, during the period of Jan 1, 2008 to December 31, 2018. After the data retrieval, percentages of complications were calculated between the study and control groups. Fischer's exact test and t-test were used for statistical analysis by using SPSS version 22. The results showed higher complication rates in pregnancies of patients with SCD. Hypertensive disorders (13.3%), abruptio placenta (1.6%), intrauterine growth restriction (19.2%), thromboembolism (6.6%) and stroke (2.6%) were all higher in SCD as compared to the control group .The complications of SCD itself including anemia (89.4%), acute chest syndrome (13.2%) and sickle cell crisis (39.2%) were also increased during the pregnancy. Both still birth (3.3%) and neonatal intensive care unit admission (1.6%) were also higher in SCD. SCD during the pregnancy is a high-risk situation and can lead to many fetomaternal complications; however, preconceptional counselling, early booking, a careful monitoring during pregnancy and multidisciplinary management approach can prevent potential adverse outcome in this regard.

Reference intervals for hemoglobin and hematocrit in a low-risk pregnancy cohort: implications of racial differences.

Objective: As anemia in pregnancy is associated with adverse perinatal outcomes, we sought to define the mean and the fifth percentile of Hb and Ht using a contemporary multiethnic large cohort of low-risk pregnancies, and assess potential racial differences. Methods: We conducted a retrospective cohort study on women who delivered between 1 January 2008 and 31 December 2013 in Reggio Emilia County, Italy. Linear mixed effects models were used to describe changes in mean Hb and Ht, while quantile regression with matrix-design bootstrap defined changes in the fifth percentile of Hb and Ht, controlling for race, maternal age, smoking, and pregnancy number. Results: We analyzed 23,657 hemograms from 7318 pregnancies and 6870 women. Multivariate analysis showed that when compared to Caucasians', African women's mean Hb and Ht were respectively 0.24 (95%CI 0.3-0.17) g/dl and 0.7 (95%CI 0.8-0.5) % lower, while Asian mothers' were 0.11 (95%CI 0.19-0.03) g/dl and 0.3 (95%CI 0.5-0.1) % inferior. Similarly, both African and Asian women had lower fifth Ht percentiles (-1, 95%CI -1.3 to -0.6, and -0.4, 95%CI -0.7 to -0.04) than Caucasians, while African mothers also had lower fifth Hb percentile (0.3, 95%CI 0.5-0.1). The fifth percentile for Hb and Ht were, respectively, 11.3 (95%CI 11-11.5) g/dl and 32.8 (95%CI 32.3-33.4) % in the first trimester, 10.4 (95%CI 10.1-10.6) g/dl and 30.2 (95%CI 29.6-30.8) % in the second trimester, 10.1 (95%CI 9.8-10.3) g/dl and 30.6 (95%CI 30-31.1) % in the third trimester. Conclusions: We provided contemporary references to define anemia in pregnancy, and we confirmed that even in pregnancy, African and Asian women have lower Hb and Ht than Caucasian. Racial and population-specific references may have significant clinical and public health implication for more accurate disease diagnosis and appropriate treatment.

[Impact and changes of maternal hemoglobin on birth weight in pregnant women of Zhuang Nationality, in Guangxi].

Objective: To investigate the hemoglobin (Hb) levels during pregnancy and Hb changes from early pregnancy and association with birth weight on infants. Methods: Mothers of Zhuang Nationality who participated in the pregnancy care program and delivered at the Pingguo County Hospital from May 2013 to May 2015 were included in this study. Retrospective analysis was applied to collect data of health care and pregnancy outcomes. Multiple regression analysis and unconditional logistic regression model were used for data analysis. Results: The mean birth weight appeared as (313 5.92±435.84) grams. The Hb levels at early pregnancy showed significantly positive association with birth weight. Results from our study demonstrated that when Hb levels increased + 1 g/dl at early pregnancy, birth weight would increase 17.61(95% CI: 0.60-34.67) grams, in the adjusted model. The Hb levels at late pregnancy were significantly inversely associated with birth weight. Our findings suggested that when Hb levels increased + 1 g/dl at late pregnancy, birth weight would reduce 19.61(95% CI: -37.53 --1.70) grams in the adjusted model. Changes in Hb from early pregnancy stages were significantly inversely associated with birth weight after adjusting for confounders and Hb levels in the early pregnancy stages. The results also indicated that when Hb levels increased a + 1 g/dl from early to late pregnancy, the birth weight would decrease 32.63 g(95% CI: -48.93--16.32). Compared to the non-anemia group, the anemia group showed significantly increase of small-for-gestational-age (SGA)(OR=1.58, 95%CI: 1.08-2.32) in early pregnancy. Compared to women under the most reduction status, women with the least reduction had a significantly increase of SGA (OR= 1.87, 95% CI:1.24-2.81) among their infants. With the magnitude of reduction on Hb concentration during pregnancy, the risk of delivering babies with SGA showed a gradual trends of increase. Conclusion: Hb levels at early pregnancy were positively associated with birth weight, but the changes of Hb were inversely associated with birth weight at late pregnancy, in women of Zhuang Nationality. Anemia in early pregnancy and the low amplitude of decreased Hb concentration during pregnancy were both risk factors for newborns under less gestational ages.

Sociodemographic factors associated with anaemia in pregnancy at booking for antenatal care.

Late patronage of antenatal care by women in low-resource areas makes timely intervention at correcting anaemia difficult. This study aimed to identify modifiable sociodemographic factors that predict anaemia before commencing antenatal care and make appropriate recommendation. A survey of sociodemographic features and haemoglobin concentrations of 232 women booking for antenatal care was conducted. Anaemia was diagnosed in 119 (51.3%), of which 87 (37.5%) had mild anaemia and 32 (13.8%) were moderately anaemic. There was no severe anaemia. Anaemia was highest among respondents who were 35 years of age, Muslims, of Igbo ethnicity (64.3%), single (55.0%), student/unemployed (58.8%), nulliparous (57.3%) and those who registered at 21 weeks' gestation (54.2%). Only occupation of the woman showed association with anaemia before antenatal care (p 0.007). A personal source of income may reduce anaemia in pregnancy; and it is advisable to have a social welfare package for unemployed pregnant women.

Anemia among Muslim Bedouin and Jewish women of childbearing age in Southern Israel.

There are inequalities in health indicators among different ethnic groups living in the same region and receiving the same medical services. Anemia is a global problem. Although the prevalence of anemia is not high in Israel, differences among ethnic groups have not been studied. Our objective was to assess anemia among Bedouin and Jewish women of childbearing age in southern Israel. A retrospective observational study was conducted based on data from computerized medical records. Seven thousand eight hundred seventy-one women in the study clinics underwent complete blood counts and had blood hemoglobin levels of 11 g/dl or below. The Jewish patients were older (31.7 vs. 29.7 years, P < 0.001), practiced birth control more (24.2 vs. 9.9 %, P < 0.001), and adhered to it more (81.1 vs. 61.9 %, P < 0.001). Bedouin women had more children (3.7 vs. 1.9, P < 0.001), and more Bedouin women were pregnant during the study period (49.3 vs. 35.0 %, P < 0.001). The most prevalent types of anemia were iron deficiency and anemia of chronic disease. Two types of anemia were proportionally higher among Jewish women, anemia of chronic disease (18.1 vs. 9.7 %, P < 0.001) and folic acid deficiency (3.3 vs. 2.2 %, P > 0.001). The adherence rates for treatment were very low. Three factors associated with severe anemia (hemoglobin below 8 g/dl) were being Bedouin (odds ratio (OR) = 1.295, P < 0.001), use of birth control (OR = 0.419, P < 0.001), and pregnancy (OR = 0.447, P < 0.001). Being a Bedouin woman is a risk factor for severe anemia, and adherence to treatment for anemia is very low in both groups. These findings should be addressed in a national program to reduce health inequalities.

Increased false positive Down syndrome screening in women with sickle cell anemia.

OBJECTIVES: This study seeks to determine whether there is a higher rate of false positive serum screening for Down syndrome in women with sickle cell anemia and, if so, which markers contribute to the false positive screen. METHODS: This is a retrospective cohort study of women who had serum screening between 1998 and 2011. Subjects were women with sickle cell anemia (n = 13), and controls were African American women who did not have that disease (n = 91). The populations were compared using basic inferential statistics. RESULTS: The positive screen rate was 38.5% (5/13) in women with sickle cell anemia and 7.7% (7/91) in the control population (odds ratio 7.5, 95% confidence interval 1.6-35.8, P = 0.001). At the average age of the cases (25 years), the expected false positive rate is only 2%. The human chorionic gonadotrophin values were significantly higher in cases than controls (2.00 and 1.30 MoM, P = 0.017), whereas levels of other serum analytes were similar. None of the screen positive results were associated with a fetus or neonate affected by Down syndrome. CONCLUSIONS: The false positive Down syndrome serum screen rate is significantly higher in patients with sickle cell anemia than in African American women without that disease. The human chorionic gonadotrophin values were significantly higher in cases than controls, suggesting that placental factors may contribute to the elevated false positive rate. © 2015 John Wiley & Sons, Ltd.

Placental inflammation is associated with rural and remote residence in the Northern Territory, Australia: a cross-sectional study.

BACKGROUND: The Northern Territory has the highest rates of perinatal morbidity and mortality in Australia. Placental histopathology has not been studied in this high-risk group of women. METHODS: This is the first study to detail the placental pathology in Indigenous women and to compare the findings with non-Indigenous women in the Northern Territory. There were a total of 269 deliveries during a three-month period from the 27(th) of June to the 27(th) of August 2009. Seventy-one (71%) percent of all placentas were examined macroscopically, sectioned then reviewed by a Perinatal Pathologist, blinded to the maternal history and outcomes. RESULTS: Indigenous women were found to have higher rates of histologically confirmed chorioamnionitis and or a fetal inflammatory response compared with non-Indigenous women (46% versus 26%; OR 2.4, 95% CI 1.3-4.5). In contrast, non-Indigenous women were twice as likely to show vascular related pathology (31% versus 14%; OR 2.77, 95% CI 1.3-5.9). Indigenous women had significantly higher rates of potentially modifiable risk factors for placental inflammation including genitourinary infections, anaemia and smoking. After adjusting for confounders, histological chorioamnionitis and fetal inflammatory response was significantly associated with rural or remote residence (Adjusted OR 2.5, 95% CI 1.08 - 5.8). CONCLUSION: This study has revealed a complex aetiology underlying a high prevalence of placental inflammation in the Northern Territory. Placental inflammation is associated with rural and remote residence, which may represent greater impact of systemic disadvantage, particularly affecting Indigenous women in the Northern Territory.

Ethnic differences in the association of thrombophilic polymorphisms with obstetric complications in Slovak and Roma (Gypsy) populations.

AIMS: Hereditary as well as acquired thrombophilia is associated with a higher incidence of severe obstetric complications such as preeclampsia, spontaneous pregnancy loss, placental abruption, and fetal growth retardation. The aim of our study was to examine the association of selected thrombophilic polymorphisms (factor V Leiden, MTHFR C677T, and MTHFR A1298C) with pregnancy complications in the Slovak majority population and the Roma (Gypsy) ethnic population. The study included 354 women; 120 patients and 105 controls from the Slovak majority population, 50 patients and 79 controls from the Slovak Roma population. Genotyping was performed by the real-time polymerase chain reaction method using TaqMan(®) MGB probes. RESULTS: A statistically significant higher frequency of factor V Leiden (p=0.001, odds ratio [OR]=5.9) and MTHFR C677T polymorphism (p=0.011, OR=1.7) was observed in the Slovak majority patient group compared to the control group. The incidence of MTHFR A1298C polymorphism between patients and controls did not differ significantly. None of the three polymorphisms studied was in association with pregnancy complications in the group of Roma women. CONCLUSIONS: Our study has confirmed the variable distribution of selected thrombophilic polymorphisms in different ethnic groups as well as their various effects on the clinical phenotype.

Obstetrician-gynecologists' knowledge of sickle cell disease screening and management.

BACKGROUND: Although obstetrician/gynecologists (OB/GYNs) play an important role in sickle cell disease (SCD) screening and patient care, there is little information on knowledge of SCD or sickle cell trait (SCT) or related practices in this provider group. Our objective was to assess SCD screening and prenatal management practices among OB/GYNs. METHODS: Twelve hundred Fellows and Junior Fellows of the American College of Obstetricians and Gynecologists (the College)a were invited to complete a mailed survey, of which half (n = 600) belonged to the Collaborative Ambulatory Research Network.b Participants answered questions regarding appropriate target patient groups for prenatal SCD screening, folic acid requirements, practice behaviors and adequacy of their medical school and residency training. RESULTS: A total of 338 CARN members (56.3%) and 165 non-CARN members (27.5%) returned a survey. Of the 503 responders, 382 provided obstetric services and were included in the analyses. Forty percent of these respondents (n = 153) reported seeing at least 1 patient with SCD in the last year. Of these, 97.4% reported regularly screening people of African descent for SCD or SCT, whereas 52.9% reported regularly screening people of Mediterranean descent and 30.1% reported regularly screening people of Asian descent. Only 56.2% knew the correct recommended daily dose of folic acid for pregnant women with SCD. The proportion of respondents that rated training on SCD screening, assessment and treatment as barely adequate or inadequate ranged from 19.7% to 39.3%. CONCLUSIONS: The practice of many OB/GYNs who care for patients with SCD are not consistent with the College Practice Guidelines on the screening of certain target groups and on folic acid supplementation. There may be an opportunity to improve this knowledge gap through enhanced medical education.

Ethnic variations in severe maternal morbidity in the UK- a case control study.

BACKGROUND: Previous studies showed a higher risk of maternal morbidity amongst black and other minority ethnic (BME) groups, but were unable to investigate whether this excess risk was concentrated within specific BME groups in the UK. Our aim was to analyse the specific risks and to investigate reasons for any disparity. METHODS: Unmatched case-control analysis using data from the United Kingdom Obstetric Surveillance System (UKOSS), February 2005-January 2013. Cases were 1,753 women who experienced severe morbidity during the peripartum period. Controls were 3,310 women who delivered immediately before the cases in the same hospital. Multivariable logistic regression modelling was used to adjust for known confounders and to understand their effects. RESULTS: Compared with white European women, the odds of severe maternal morbidity were 83% higher among black African women (adjusted odds ratio (aOR) = 1.83; 95% Confidence Interval (CI) = 1.39-2.40), 80% higher among black Caribbean (aOR = 1.80; 95% CI = 1.14-2.82), 74% higher in Bangladeshi (aOR = 1.74; 95% CI = 1.05-2.88), 56% higher in other non-whites (non-Asian) (aOR = 1.56; 95% CI = 1.05-2.33) and 43% higher among Pakistani women (aOR = 1.43; 95% CI = 1.07-1.92). There was no evidence of substantial confounding. Anaemia in current pregnancy, previous pregnancy problems, inadequate utilisation of antenatal care, pre-existing medical conditions, parity>3, and being younger and older were independent risk factors but, the odds of severe maternal morbidity did not differ by socioeconomic status, between smokers and non-smokers or by BMI. DISCUSSION: This national study demonstrates an increased risk of severe maternal morbidity among women of ethnic minority backgrounds which could not be explained by known risk factors for severe maternal morbidity.

Differences in thrombotic risk factors in black and white women with adverse pregnancy outcome.

INTRODUCTION: Black women have an increased risk of adverse pregnancy outcomes and the characteristics of thrombotic risk factors in this population are unknown. The objective of this study was to examine the racial differences in thrombotic risk factors among women with adverse pregnancy outcomes. METHODS: Uniform data were collected in women with adverse pregnancy outcomes (pregnancy losses, intrauterine growth restriction (IUGR), prematurity, placental abruption and preeclampsia) referred to Thrombosis Network Centers funded by the Centers for Disease Control and Prevention (CDC). RESULTS: Among 343 white and 66 black women seen for adverse pregnancy outcomes, protein S and antithrombin deficiencies were more common in black women. The prevalence of diagnosed thrombophilia was higher among whites compared to blacks largely due to Factor V Leiden mutation. The prevalence of a personal history of venous thromboembolism (VTE) did not differ significantly by race. A family history of VTE, thrombophilia, and stroke or myocardial infarction (MI) was higher among whites. Black women had a higher body mass index, and a higher prevalence of hypertension, while the prevalence of sickle cell disease was approximately 27 fold higher compared to the general US black population. CONCLUSIONS: Thrombotic risk factors differ significantly in white and black women with adverse pregnancy outcomes. Such differences highlight the importance of considering race separately when assessing thrombotic risk factors for adverse pregnancy outcomes.

Effect of using population-specific body mass index cutoff points in the risk assessment of pregnant Asian women for venous thromboembolism.

INTRODUCTION: Current international Royal College of Obstetricians and Gynaecologists (RCOG) guidelines list maternal obesity (body mass index [BMI] ≥ 30.0 kg/m2) as a risk factor for venous thromboembolism (VTE). Although the World Health Organization (WHO) has recommended lower BMI cutoff points for Asians when risk stratifying for diseases associated with obesity, this has not been extended to maternal obesity. In the present study, we compared the difference in using Asian-specific BMI cutoff points as opposed to those in international guidelines in determining the population at risk for VTE, as defined by RCOG guidelines. METHODS: All spontaneous deliveries (n = 94) and Caesarean sections (n = 41) over a three-week period, and instrumental deliveries (n = 15) over a two-month period, were reviewed and risk stratified based on Asian-specific, as well as international, BMI cut-off points. RESULTS: For the group that underwent spontaneous vaginal delivery, the percentage of patients at risk for VTE nearly doubled (from 8.5% to 16.0%) with the revised risk stratification, while that of patients who had instrumental delivery had more than a two-fold increase (250%). In the initial risk stratification of the post-Caesarean patients, none were at high risk of VTE. However, when the lower cut-off points of 27.5 kg/m2 and 23.0 kg/m2 were used, one and three patients were respectively identified to be at high risk. CONCLUSION: Further research and consideration regarding the adjustment of international risk stratification guidelines to accommodate population-specific differences are required so that at-risk patients are not missed.

Sickle cell trait: is there an increased VTE risk in pregnancy and the postpartum?

UNLABELLED: Blacks are purported to have a higher venous thromboembolism (VTE) risk than whites. We hypothesized that this might be due, in part, to the greater presence of sickle cell trait (SCT) among blacks. We investigated whether the presence of SCT resulted in a higher VTE incidence in a population predisposed to VTE, the pregnant/postpartum women. METHODS: Using a mirrored clinical database that prospectively gathered in- and out-patient information for the years 1998-2008, we collected demographic data, including hemoglobin electrophoreses, on all pregnant/postpartum non-Hispanic women who delivered at a large, diverse, urban hospital. We identified those women who developed VTE either while pregnant or postpartum during those 11 years. Charts initially identified as potential VTE cases were subjected to review to ensure accuracy of VTE coding. RESULTS: Of 12,429 women, 679 non-Hispanic SCT black women, 5,465 non-Hispanic Hemoglobin AA (women with HbA as the only hemoglobin present on electrophoresis, with normal amounts of the minor hemoglobins) black women and 1,162 non-Hispanic HbAA white women were included in the analysis. SCT prevalence was high (11.1%) within this black population as compared to 8.3% in the general non-white population. Proportions with VTE were similar for black SCT and black HbAA groups: 0.44% for the SCT group, 0.49% for non-Hispanic black HbAA women. Black HbAA women had a non-significantly higher proportion of VTE than white HbAA women 0.49% vs 0.26% (RR 1.9, 95%CI:0.6,6.3, p = 0.28). Women with VTE were older than those without VTE (32.2 vs. 27.6 years, p = 0.0002) and the majority of VTE occurred postpartum in all groups, and significantly in the HbAA groups. There was no increase in the incidence of pulmonary emboli in the SCT group. CONCLUSION: In the largest analysis to date, we could not detect a meaningful difference in peripartum VTE incidence between women with and without sickle cell trait.

Genetic thromobophilia in pregnancy: a case-control study among North Indian women.

In the present study, an attempt is made to understand the role of genetic thrombophilias i.e. MTHFR C677T and FVL in the causation of various pregnancy complications like pregnancy induced hypertension (PIH), recurrent abortions, intra-uterine growth retardation (IUGR) and intra-uterine death on the whole and also individually along with the comparative assessment of pathophysiological basis of various pregnancy complications via the genetic proximities. One thousand and eleven (1,011) women of reproductive age group were recruited in the present study comprising various complications and controls. Recruitment criteria for all the pregnancy complications and controls was made and followed strictly. MTHFR C677T and FVL mutation detection was done in all the subjects. Vegetarianism was found to be significant risk factors for all the pregnancy complications and also when assessed individually. With respect to MTHFR C677T polymorphism, higher frequency of 677T allele was found among controls as compared to cases. 677T allele was found to pose decreased risk for various pregnancy complications on the whole and also individually. On adjusting the diet, regression analysis revealed no risk of mutant allele (T) for various pregnancy complications. FVL homozygous mutants were found to be absent among controls. In conclusion, the present study depicts dietary pattern as one of the most important factors in demonstrating the role of MTHFR C677T in various pregnancy complications and is indicative of a relatively deleterious effect of double dose of FVL in the presently studied population. Additionally, these polymorphisms play an important role in the orchestration of PIH to IUGR and vice versa.

Helicobacter pylori and thrombocytopenia in the pregnant hispanic population.

OBJECTIVE: An association between Helicobacter pylori (H. pylori) and thrombocytopenia has been demonstrated in the literature in a non-pregnant population. The purpose of this study was to determine whether or not there is a similar association in the third trimester of pregnancy in a Hispanic population. METHODS: This is a secondary analysis of 82 pregnant Hispanic women with and without hyperemesis gravidarum who underwent serologic evaluation for H. pylori IgG. Results of complete blood counts obtained in the third trimester were analysed for thrombocytopenia. RESULTS: Of the 82 subjects who had H. pylori testing, 54 subjects had both serum H. pylori IgG results and third trimester platelet levels. The prevalence of thrombocytopenia was 11.1% (6/54). Thirty-six subjects were seropositive for H. pylori IgG and 18 subjects were seronegative. Of the 36 subjects who were H. pylori seropositive, four (11.1%) developed thrombocytopenia compared to three of 18 (16.7%) H. pylori seronegative subjects (P = 0.67). There was no difference between the groups in their mean platelet values (205 K/cu mm vs. 212 K/cu mm, P = 0.69). CONCLUSIONS: In this limited study, we found no association between H. pylori and thrombocytopenia in the pregnant Hispanic population.