Propranolol compared with propranolol plus isosorbide-5-mononitrate for portal hypertension in cirrhosis. A randomized controlled study.
OBJECTIVE
To investigate whether isosorbide-5-mononitrate (Is-5-Mn) given with propranolol reduces hepatic portal pressure more than does propranolol alone in patients with cirrhosis.


METHODS
A randomized controlled trial.


METHODS
Fifty patients with cirrhosis and esophageal varices entered and 42 completed the study.


METHODS
Twenty-one patients received oral propranolol at increasing doses until their resting heart rate was reduced by 25%, and 21 patients received oral propranolol (on the same schedule) plus oral Is-5-Mn, 40 mg twice a day.


METHODS
Hepatic vein pressure gradient, liver function, and splanchnic and systemic hemodynamics before and after 3 months of continuous therapy.


RESULTS
At 3 months, the hepatic venous pressure gradient decreased more (P less than 0.01) in patients given propranolol plus Is-5-Mn (19%, from 18.4 +/- 3.9 to 14.9 +/- 3.8 mm Hg; 95% CI, -2.4 to -4.5 mm Hg) than in those given propranolol alone (10%, from 18.2 +/- 3.5 to 16.3 +/- 3.1 mm Hg; CI, -1.1 to -2.7 mm Hg). The hepatic venous pressure gradient decreased by more than 20% of the baseline value in 10% of patients receiving propranolol, but in 50% of patients receiving combined therapy (P less than 0.02). There were statistically significant decreases in hepatic blood flow and the intrinsic clearance of indocyanine green after propranolol therapy, but not after combined therapy. The treatments caused similar reductions in azygos blood flow and cardiac output.


CONCLUSIONS
The long-term combined administration of propranolol plus Is-5-Mn reduces portal pressure more than propranolol alone without adverse effects on hepatic perfusion and liver function. Whether this greater hemodynamic effect translates into better clinical efficacy should be determined in randomized controlled trials.
García-Pagán
J C
JC
Hospital Clínic i Provincial, University of Barcelona, Spain.
Feu
F
F
Bosch
J
J
Rodés
J
J
D000368:Aged; D004359:Drug Therapy, Combination; D005260:Female; D006439:Hemodynamics / Q000187:drug effects; D006503:Hepatic Veins / Q000187:drug effects; D006801:Humans; D006975:Hypertension, Portal / Q000188:drug therapy* / Q000209:etiology; D007548:Isosorbide Dinitrate / Q000031:analogs & derivatives* / Q000627:therapeutic use; D008099:Liver / Q000187:drug effects / Q000378:metabolism; D008102:Liver Circulation / Q000187:drug effects; D008103:Liver Cirrhosis / Q000150:complications; D008297:Male; D008875:Middle Aged; D011433:Propranolol / Q000627:therapeutic use*; D014690:Venous Pressure / Q000187:drug effects
D011433:Propranolol; D007548:Isosorbide Dinitrate; C030397:isosorbide-5-mononitrate