Inhaled Nitric Oxide for Acute Right Heart Failure in Pulmonary Hypertension　― Bridging the Evidence-to-Practice Gap ―

including inotropes, vasopressors, and oxygen administration, is being used to optimize preload, afterload, and cardiac contractility (Figure ). 1,5However, there is a lack of high-quality evidence regarding pharmacological strategy during the acute phase for pulmonary vasodilators D ecompensated acute right heart failure (RHF) is one of the most severe complications pulmonary hypertension (PH). 1 Despite recent progress in disease-specific treatment, such as selective pulmonary vasodilators and balloon pulmonary angioplasty, 2-4 patients with acute RHF due to PH have high morbidity and mortality rates.Most of these patients require intensive care, but therapeutic options remain limited.Supportive therapy,