Rj. Zotz et al., THE INFLUENCE OF ALBUNEX ON THE PULMONARY CIRCULATION IN PATIENTS WITH PULMONARY-HYPERTENSION OR LEFT-HEART FAILURE, European heart journal, 17(2), 1996, pp. 302-307
To determine the safety of the ultrasound contrast agent Albunex, its
influence on right and left heart haemodynamics in patients with pulmo
nary artery hypertension or left heart failure was assessed after intr
avenous injection. Patients with a left ventricular ejection fraction
smaller than 40% or a systolic pulmonary artery pressure greater than
40 mmHg received 0.08 and 0.22 ml . kg(-1) Albunex and 10 mi albumin i
n random order during right heart catheterization and transthoraeic ec
hocardiography. Right atrial, systolic and diastolic pulmonary artery
and capillary wedge pressures were measured at 3 min and 5 min and car
diac output at 5 min after the intravenous injection of Albunex and co
ntrol The mean differences of pre- and postinjection values and their
confidence intervals were tabulated and significance was anticipated i
f the confidence interval did not include 0. Significant changes to pr
e-injection values could be observed in diastolic pulmonary artery pre
ssure 5 min after the injection of albumin and 0.08 ml . kg(-1) Albune
x, and in right atrial pressure 5 min after the injection of 0.22 ml .
kg(-1) Albunex only. Since intermediate opacification of the left ven
tricle was seen in only four patients with 0.22 ml . kg(-1) Albunex, i
n the patients studied higher doses of Albunex and their safety need t
o be assessed.