alexa The longitudinal effects of fenfluramine-phentermine use.


Journal of Anesthesia & Clinical Research

Author(s): Fleming RM, Boyd LB

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Abstract The use of previous anorectic medications and the combined use of the anorectic medications fenfluramine and phentermine (Fen-Phen) have been associated with varying degrees of valvular regurgitation and pulmonary hypertension. More recent reports have suggested a lower incidence of both than was previously reported. Comparisons of patients with similar body mass index (BMI) have been missing as well as information regarding chamber dimensions and pressures. Using transthoracic 2D, M-mode, and Doppler echocardiography, 57 men and women (30 Fen-Phen and 27 BMI-matched individuals/BMIMCG) were studied to determine their chamber dimensions, wall motion, diastolic function, valvular abnormalities, left ventricular ejection fractions (LVEFs), and pulmonary artery pressures (pAPs). The 30 Fen-Phen subjects were studied shortly after discontinuing the medications and again 6 to 12 months later. The results in these subjects were then compared with the valvular findings of 660 randomly selected cardiac patients with non-Fen-Phen-induced heart disease (NFPHD). Valvular regurgitation was greatest among patients who had recently discontinued the use of Fen-Phen (EFP) with 57\% of all valves having regurgitation, 87.5\% of which were "mild." These same individuals also had the largest left ventricles at end (LVEDD) diastole (5.03 +/-0.22 cm) and systole (LVESD). The LVESDs were statistically larger (p
  • DOI: 10.1177/0003319707302496
  • This article was published in Angiology and referenced in Journal of Anesthesia & Clinical Research

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