Effect of intravenous furosemide in a pulmonary arterial hypertension patient admitted with overt right heart failure documented by echo-Doppler of the heart. Effect of intravenous furosemide in a pulmonary arterial hypertension patient admitted with overt right heart failure documented by echo-Doppler of the heart. At base line (left panels), right ventricle is hugely dilated inducing left ventricle collapse and a restrictive mitral flow pattern with decreased E/A ratio. After acute diuresis (right panels), left ventricle can fill better and E/A ratio is restored. Reproduced from [10] with permission from the publisher. M. Delcroix, and R. Naeije Eur Respir Rev 2010;19:204-211 ©2010 by European Respiratory Society