Maternal morbidity and mortality associated with mode of delivery in sickle cell disease.

This retrospective observational study compared pregnancy outcomes based on mode of delivery in women with homozygous sickle cell disease (HbSS) to women without (HbAA) using delivery records of 48,600 parturients between January 1992 and January 2020. Fisher's exact tests and Mann-Whitney's test were used to analyse variables based on sickle cell status. Vaginal delivery and HbSS were more associated with labour induction/augmentation (AOR = 2.4, (0.7-7.8)), intrapartum complications (AOR = 2.6, (0.5-14)), postpartum haemorrhage (AOR = 2.8 (0.5-15.2)) and postpartum infections (AOR = 9.6 (1.7-54.4)). Caesarean delivery resulted in more postpartum infections in the HbSS group (AOR = 23.6 (0.9-638.4)). Vaginal delivery in HbSS resulted in more intrapartum complications and postpartum haemorrhage but caesarean delivery greatly increased the risk of postpartum infections and hypertensive disorders. Sickle cell disease (SCD) did not confer increased risk of adverse perinatal outcomes regardless of mode of delivery.Impact StatementWhat is already known on this subject? Women with homozygous sickle cell disease (SCD) are at an increased risk of postpartum infections, undergoing caesarean delivery, admission to the neonatal intensive care unit and overall perinatal mortality when compared to women with normal haemoglobin genotype. Comparisons have been made between homozygous SS disease and haemoglobin SC disease revealing higher rates of maternal and foetal morbidity in both groups.What do the results of this study add? Studies comparing maternal and foetal morbidity based on mode of delivery are lacking. To our knowledge, this study is the first examine maternal and perinatal outcomes in women with SCD undergoing vaginal and abdominal delivery compared to women with normal haemoglobin. We found that vaginal delivery in SCD is associated with more postpartum haemorrhage and caesarean delivery was linked to more hypertensive disorders and postpartum infections then compared to women with normal haemoglobin. Converse to other reports, there was no difference in perinatal outcomes based on mode of delivery.What are the implications of these findings for clinical practice and/or further research? Caesarean delivery and SCD greatly increased the risk of postpartum infections and hypertensive disorders but did not confer a higher risk of postpartum haemorrhage. There were more maternal deaths in SCD women who underwent caesarean vs. vaginal delivery and this requires further study to determine the pregestational predictors of adverse outcomes. Women with SCD who achieve a successful primary vaginal delivery may have reduced risk of complications in subsequent pregnancies, possibly comparable to women without the disease.

Contraceptive practices in women with chronic medical conditions.

Contraception in women with severe medical conditions is a potential measure to reduce maternal mortality. We sought to determine the contraceptive use in women with medical conditions at the University Hospital of the West Indies (UHWI) in Jamaica to determine if there is room for improvement in contraceptive use. Participants were identified from the medical out-patient departments and questionnaires administered. Two hundred and sixty females between 18 and 44 years with varied chronic medical conditions were included. Those included were systemic lupus erythematosus (SLE), diabetes, hypertension (HTN), thyroid disease, cardiac and renal disease. The total current use of contraception was 58.4%, while 41.6% were not on contraceptives. The use of barrier methods and long-acting reversible contraceptives (LARCs) was 71% and 10%, respectively. The current use of contraception in patients with sickle cell disease (SCD) was 84% (p=.004) and in rheumatoid arthritis (RA), 14% (p=.028). Fifty-eight (58, 24.2%) of the women were using two or more methods of contraception. There is a role for improving contraceptive use among women with medical conditions as they are at increased risk of pregnancy complications.IMPACT STATEMENTWhat is already known on this subject? Women with medical comorbidities significantly contribute to both direct and indirect causes of maternal mortality. Contraception may play an integral role in reducing the risk of dying in chronically ill women; however, the use of contraception in this group is often suboptimal.What the results of this study add? This study adds to the literature that in this high-risk group, there is an underuse of long-acting reversible contraceptives, which is ideal for this population.What the implications are of these findings for clinical practice or further research? The results will provide evidence that this high-risk group of women should be targeted and counselled regarding their risk of morbidity and mortality in pregnancy as well as contraception use while their condition is optimised. From this evidence, services may be put in place in institutions, especially in low-resource settings.