© 2003 European Society of Cardiology
Torasemide vs. furosemide in primary care patients with chronic heart failure NYHA II to IV—efficacy and quality of life
a Roche Pharmaceuticals Switzerland CH-4153 Reinach, Switzerland
b Biometrix S.A. CH-1196 Gland, Switzerland
c Five Office Ltd., Study Coordinating Agency CH-8620 Wetzikon, Switzerland
d Department of Medicine Spital Zimmerberg, CH-8820 Waedenswil, Switzerland
* Corresponding author. Tel.: +41-1-728-15-02; fax: +41-1-728-15-05 E-mail address: b.hess{at}spital-zimmerberg.ch
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Background: The hypothesis was that torasemide, due to more predictable pharmacokinetics/pharmacodynamics, induces greater improvements in functional and social limitation than furosemide and reduces the frequency of hospitalisations in primary care patients with chronic heart failure (CHF).
Patients and Methods: Prospective, randomized, unblinded study in primary care, 237 patients with CHF (NYHA II–IV), all on ACE inhibitors. Randomisation: torasemide (n=122) or furosemide (n=115), treated for 9 months. Endpoints: Clinical efficacy, quality of life, safety, tolerability, hospitalisations.
Results: Clinical improvement was observed in both groups, but the trend to improve by at least one NYHA class was significant only in torasemide- (P=0.014), but not in furosemide-treated patients. There were no differences with regard to adverse events and hospitalisation due to CHF. Overall, tolerability (P=0.0001) and improvement in daily restrictions (P=0.0002) were significantly higher, number of mictions at 3, 6 and 12 h after diuretic intake (P<0.001 at all time points) and urgency to urinate (P<0.0001) significantly lower in torasemide- vs. furosemide-treated patients.
Conclusion: CHF patients treated with torasemide gain a higher benefit in quality of life than furosemide treated patients, due to torasemide's dual effect on both clinical status and social function.
Key Words: Chronic heart failure Diuretics Torasemide Furosemide Efficacy Quality of life
Received February 12, 2003; Revised April 23, 2003; Accepted July 17, 2003
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