Abstract
The incidence of pulmonary hypertension (PH) in patients undergoing noncardiac surgery has increased steadily over the past decade. Patients with known PH have significantly higher perioperative morbidity and mortality than those without PH. Moreover, a substantial number of patients may have occult disease. It, therefore, is of paramount importance for perioperative providers to recognize high-risk patients and treat them appropriately. This review first provides an overview of PH pathophysiology, then estimates the perioperative incidence of PH and its impact on surgical outcomes, and finally outlines a perioperative management strategy.