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  • Title: Effects of the sibutramine therapy on pulmonary artery pressure in obese patients.
    Author: Guven A, Koksal N, Cetinkaya A, Sokmen G, Ozdemir R.
    Journal: Diabetes Obes Metab; 2004 Jan; 6(1):50-5. PubMed ID: 14686963.
    Abstract:
    AIM: Obesity is a major global public health problem. Previous drugs (dexfenfluramine and fenfluramine) used for the treatment of obesity have been withdrawn due to various cardiac side effects. Sibutramine is an anti-obesity agent. The purpose of this study was to assess cardiac valve disease and pulmonary artery pressure (PAP) of the patients who used once daily doses of sibutramine. METHODS: One hundred and six obese patients (51 men and 55 women) determined to have minimal tricuspid regurgitation (TR) on echocardiographic examination were included in the study. All patients had a complete physical examination, complete blood count and measurement of lipid parameters, and echocardiography was performed by which cardiac valves and PAP were evaluated. After the mean duration of 24-week of follow up, all examinations were repeated for each patient. RESULTS: The drug was well tolerated by all patients for the follow-up period. A significant weight loss was recorded in all patients compared to the baseline values (93.1 +/- 9.6 kg vs. 85.8 +/- 7.7 kg, p<0.001). Blood pressures and heart rate of the patients increased compared to the baseline measurements (systolic 122.3 +/- 8.5 vs. 124 +/- 10.2 mmHg, p=0.128, diastolic 79.3 +/- 4.7 vs. 80 +/- 5.7 mmHg, p=0.42 and heart rate 79.5 +/- 6.5 vs. 85 +/- 5.7 beats/min, p<0.001). Echocardiographically determined aortic or mitral valve dysfunction appeared in none of the patients. PAP lightly increased after the treatment but the difference between pre and post-treatment values was not found statistically significant (14.7 +/- 1.8 vs. 16.3 +/- 1.6 mmHg, p=0.06). CONCLUSIONS: A 24-week treatment with sibutramine does not affect heart valves and pulmonary artery pressure.
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