Patterns and Trends in Vasoactive Medication Use in Patients With Pulmonary Arterial Hypertension Presenting With Shock.

The optimal use of vasoactive medications in patients with pulmonary arterial hypertension with shock remains unknown. Using a national database, we benchmarked initial vasoactive practices. Twenty-five distinct strategies were identified, most commonly norepinephrine, vasopressin, phenylephrine, and milrinone. Marked practice variation underscores clinical equipoise and the need for comparative effectiveness studies.