Introduction. Nowadays, cardiovascular diseases are the leading cause of
maternal morbidity and mortality in the current obstetric practice.
Physiologically Adapted Mechanisms of the Cardiovascular System in Pregnancy.
It is normal that during pregnancy some physiological adaptive changes of the
cardiovascular system occur and they may contribute to the deterioration of
the clinical cardiac status of a patient with preexisting or acquired
cardiovascular disease. The most prominent adaptive mechanisms include the
increase of circulating blood volume, decrease of peripheral vascular
resistance and decrease of plasma colloid-oncotic pressure. Most Frequent
Diseases of the Cardiovascular System in Pregnancy. Due to these changes,
pregnant women are prone to tachycardia, palpitations and peripheral edema.
Maternal counseling is obligatory for each pregnant woman in order to
decrease the maternal morbidity and mortality. The most important predictors
of maternal mortality for pregnant women with cardiovascular diseases are
severity of pulmonary hypertension, hemodynamic significance of valvular
lesion, cyanosis and functional status in heart failure. Cardiovascular
diseases in pregnant women may be congenital or acquired. The most frequent
congenital cardiac diseases are atrial and ventricular septal defects as well
as persistent ductus arteriosus. These diseases are mainly diagnosed and
corrected before the pregnancy, or left untreated if hemodynamically
insignificant. The most frequent acquired cardiovascular diseases during
pregnancy include arrhythmias, ischemic heart disease, rheumatic mitral
stenosis and insufficiency, arterial hypertension and aortic dissection.
Conclusion. In all cases of pregnancy associated with cardiovascular
diseases, early recognition of cardiovascular disease is crucial, as well as
correct diagnosis and referral to a tertiary centre equipped for a
multidisciplinary approach of specialists experienced in high-risk
pregnancies and deliveries in order to prevent maternal mortality.