Faculty Bibliography

OBJECTIVE:The objectives of our study were to: (1) evaluate the prevalence of cesarean delivery due to maternal request among nulliparous, term, singleton, vertex (NTSV) patients; (2) identify the clinical profile, if any, of these patients; and (3) compare the perinatal outcomes between NTSV patients who requested a cesarean delivery versus patients who did not request cesarean delivery. STUDY DESIGN/METHODS:This was a retrospective case control study performed at a single institution between November 2018 and July 2019. All NTSV patients who had a cesarean delivery due to maternal choice were identified and compared to the next two NTSV patients in labor who delivered vaginally or by medically indicated cesarean delivery following a cesarean delivery by maternal choice. The primary outcome was composite neonatal morbidity. Secondary outcomes were individual components of composite neonatal and maternal morbidity. RESULTS: < .01). There was no significant difference in composite neonatal morbidity between cases and controls (6.6% vs. 5.7%, adjusted odds ratio [aOR] 0.96, 95% CI 0.25-3.61). The risk for postpartum hemorrhage requiring blood transfusion was higher (but not statistically significant) in the study group (5.0% vs. 0.0%, aOR 6.43, 95% CI: 0.65-63.24). Patients who chose cesarean delivery during the intrapartum period had a higher (but not statistically significant) composite neonatal morbidity (14.3% vs. 5.7%, aOR 2.24, 95% CI 0.52-9.78) and composite maternal morbidity (28.6% vs.11.8%, aOR 2.90, 95% CI 0.92-9.16) and significantly higher transfusion rate (aOR 16.93, 95% CI 1.53-187.74). CONCLUSION/CONCLUSIONS:Cesarean delivery by maternal choice in NTSV patients is not associated with improved neonatal outcomes; in contrast, it is associated with increased composite maternal morbidity and increased transfusion rate.

OBJECTIVE:Obstetric hypertensive emergency is defined as having systolic blood pressure ≥160 mmHg or diastolic blood pressure ≥110 mmHg, confirmed 15 min apart. ACOG recommends that acute-onset, severe hypertension be treated with first line-therapy (IV labetalol, IV hydralazine or PO nifedipine) within 60 minutes to reduce risk of maternal morbidity and mortality. Therefore, our objective was to identify barriers that lead to delayed treatment of obstetric hypertensive emergency. STUDY DESIGN/METHODS:A retrospective cohort study was performed comparing women appropriately treated within 60 minutes versus those with delay in first line therapy. We identified 604 patients with discharge diagnoses of chronic hypertension, gestational hypertension or preeclampsia using ICD-10 codes and obstetric antihypertensive usage in a pharmacy database at one academic institution from January 2017 - June 2018. 267 subjects (44.2%) experienced obstetric hypertensive emergency in the intrapartum period or within two days of delivery. 213 subjects were used for analysis. We evaluated maternal characteristics, presenting symptoms and circumstances, timing of hypertensive emergency, gestational age at presentation, and administered medications. Chi square, Fisher's exact, Wilcoxon ran-sum and sample t-tests were used to compare the two groups. Univariable logistic regression was applied to determine predictors of delayed treatment. Multivariable regression model was also performed, C-statistic and Hosmer and Lemeshow goodness-of-fit test were used to assess the model fit. A result was considered statistically significant at p<0.05. RESULTS:Of the 213 women, 110 (51.6%) had delayed treatment vs. 103 (48.4%) who were treated within 60 min. Patients who had delayed treatment were 3.2 times more likely to present with an initial BP in the non-severe range vs those who had timely treatment (OR=3.24, 95% CI:1.85-5.68). Timeliness of treatment was associated with presence or absence of preeclampsia symptoms-- patients without pre-eclampsia symptoms were 2.7 times more likely to have delayed treatment (OR=2.68, 95%CI:1.50-4.80). Patients with HTN emergencies that occurred overnight between 10pm-6am were 2.7 times more likely to have delayed treatment vs. those that occurred between 6am-10pm (OR 2.72, 95% CI: 1.27-5.83). Delayed treatment also had an association with race, with Caucasian patients being 1.8 times more likely to have delayed treatment (OR=1.79; 95% CI: 1.04-3.08). Patients treated under 60 min had a lower gestational age at presentation vs those with delayed treatment (34.6±5wk vs. 36.6±4wks, respectively, p <0.001). For every 1 week increase in gestational age at presentation, there was a 9% increase in the likelihood of delayed treatment (OR 1.11; 95%CI:1.04-1.19). Another factor associated with delay of treatment was presenting complaint of labor symptoms, which made patients 2.2 times as likely to experience treatment delay (OR=2.17; 95%CI: 1.07-4.41). CONCLUSION/CONCLUSIONS:Initial blood pressure in non-severe range, absence of preeclampsia symptoms, presentation overnight, Caucasian race, presenting complaint of labor symptoms, and increasing gestational age at presentation are barriers that lead to delay in treatment of obstetric hypertensive emergency. Quality improvement initiatives targeting these barriers should be instituted to improve timely treatment.