Heart Disorders in Pregnancy By Lara A Friel, MD, PhD, University of Texas Health Medical School at Houston, McGovern Medical School Reviewed / Revised Oct 2021 | Modified Sep 2022 View Patient Education Pathophysiology Symptoms and Signs Diagnosis Treatment Key Points Valvular Stenosis and Insufficiency in Pregnancy Treatment Other Heart Disorders in Pregnancy Heart disorders account for about 10% of maternal obstetric deaths.