PP150. Pregnancy outcome in women with heart disease in a single tertiary care center

E Hink, S H Luitjes, A C Bolte
Pregnancy Hypertension 2012, 2 (3): 320

INTRODUCTION: The number of women presenting with cardiac disease during pregnancy is increasing because more women with repaired congenital heart disease are reaching childbearing age and because of more pregnancies occurring in women with ischemic heart disease. Cardiac disease is the leading cause of indirect maternal mortality in the Netherlands.

OBJECTIVES: Clinical data of pregnant women with heart disease that received obstetric care and delivered in our center have been obtained with the intention to evaluate the cardiac and obstetric pregnancy outcomes and to provide data for local counseling and management guidelines.

METHODS: Data were collected from all pregnant women with congenital or acquired heart disease who delivered between 2000 and 2010 in the VU University Medical Center Amsterdam. At least one consultation of a cardiologist during pregnancy was advised. The maternal outcomes of these pregnancies were evaluated.

RESULTS: Data of 122 women with 160 pregnancies were obtained. In this study the main heart diseases in pregnancy were congenital heart disease (n=75.61%) and arrhythmia (n=22.18%). Rheumatic heart disease was accountable for 6% (n=7) and ischemic heart disease for 4% (n=5) of inclusions. Based on the functional criteria of the New York Heart Association (NYHA), 114/122 patients (93.4%) were classified NYHA Class I-II. Patients in NYHA Class III-IV (n=8/122, 6.6%), mainly had a history of myocardial infarction or pulmonary hypertension. Of all the women, 35 had cardiac surgery before pregnancy, mainly repair of congenital heart disease. In women with acquired heart disease the interventions before pregnancy included permanent cardiac pace-maker implantation (n=2), radiofrequency catheter ablation (RFCA) (n=4) and percutaneous transluminal coronary angioplasty or coronary artery bypass graft (n=4). There were 156 singleton and 4 twin pregnancies. Termination of pregnancy was performed in 3 cases; 1 for maternal cardiac and 2 for obstetric indications. There were 156 life-births of which 100 (64.1%) were spontaneous vaginal deliveries, 17 (10.9%) operative vaginal deliveries and 39 (25%) cesarean sections: 9 for maternal cardiac indication and 30 for obstetric reasons. 36 (36%) women received epidural analgesia during labor and delivery. Cesarean section under general anesthesia was performed in 14 cases (7 for maternal cardiac indication); 25 were performed under spinal/epidural anesthesia. Induction of labour occurred in 48 pregnancies: 10 for maternal cardiac indications and 38 for other maternal and fetal indications. 28 (17.5%) pregnancies were complicated by hypertensive disorders. Cardiac complications such as heart failure developed in 15 (9.4%) pregnancies. There were two maternal deaths (1.6%).

CONCLUSION: Congenital heart disease is the type of heart disease that has the highest incidence in pregnancy, while main types of heart disease that lead to impaired cardiac function during pregnancy are ischemic disease and pulmonary hypertension. Incidence of pregnancy induced hypertensive disorders is increased in women with preexistent cardiac disorders. Maternal outcome is generally favourable for women with cardiac heart in NYHA class I/II.

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