Copyright © 2007, The European Society of Cardiology
Both ramipril and telmisartan reverse indices of early diabetic cardiomyopathy: A comparative study
aDepartment of Cardiology, Euroclinic Hospital, Athens, Greece
bFirst Cardiology Department and Department of Endocrinology, Diabetes and Metabolism, Evangelismos Hospital, Athens, Greece
Received 10 August 2006; received in revised form 23 September 2006; accepted after revision 30 September 2006.
* Corresponding author. Markou Drakou 7, Pera Orinis, Nicosia, Cyprus P.C.: 2650. Tel.: +357 99381616. phisym{at}hotmail.com
| Abstract |
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Aims: We tested the hypothesis that renin–angiotensin system inhibition could reverse left ventricular diastolic dysfunction in patients with type 2 diabetes.
Methods and results: Forty asymptomatic patients with type 2 diabetes were recruited in this double-blind cross-over trial. Left ventricular diastolic function was assessed at baseline with Doppler echocardiography; ratios of early to late peak flow velocity through the mitral orifice (E/A) and velocity time integral of early to late transmitral diastolic flow (VTIE/VTIA) were evaluated. In addition, plasma brain natriuretic peptide (BNP) was measured.
Patients received randomly either ramipril (2.5mg/day), or telmisartan (40mg/day) or their combination for 3 months. Subsequently, every patient was crossed over to alternative regimens after a 2-week washout period. Measurements were repeated at the end of each treatment period.
Both E/A and VTIE/VTIA ratios were increased (29 and 20% with ramipril, 25 and 23% with telmisartan and 36 and 28% with combination treatment, respectively, p<0.001), whereas plasma BNP levels were significantly reduced with all 3 regimens (9% with ramipril, 25% with telmisartan and 36% with combination, p<0.001).
Conclusions: Both ramipril and telmisartan improve echocardiographic left ventricular diastolic indices and reduce plasma BNP levels in diabetic patients; their combination yields an even better therapeutic effect.
Keywords: Diabetic cardiomyopathy; Renin–angiotensin system blockade