Nonobstetric surgery in pregnancy.

Diagnostic and judgmental uncertainty that results in operative delay, leading to a more severe degree of illness and more complex surgery, is the major factor effecting both maternal and fetal morbidity and mortality in pregnant surgical patients. The acute abdomen is responsible for most errors in diagnosis and therapy. An understanding of anatomic, physiologic, and laboratory changes occurring in pregnancy and a timely interdisciplinary approach will expedite management and optimize outcome.