COMPARATIVE STUDY
JOURNAL ARTICLE

Gender-related difference in left ventricular diastolic elastance during exercise in patients with diabetes mellitus

Jong-Won Ha, Hyun-Chul Lee, Sungha Park, Eui-Young Choi, Hye-Sun Seo, Chi-Young Shim, Jin-Mi Kim, Jeong-Ah Ahn, Se-Wha Lee, Se-Joong Rim, Jae K Oh, Namsik Chung
Circulation Journal: Official Journal of the Japanese Circulation Society 2008, 72 (9): 1443-8
18724019

BACKGROUND: Because the ratio of mitral inflow and annular velocity to stroke volume has been reported as an index of diastolic elastance (Ed), the hypothesis tested in the present study was that Ed during exercise would be more abnormal in female than in male patients with type 2 diabetes.

METHODS AND RESULTS: Ed was measured at rest and during graded supine bicycle exercise (25W, 3-min increments) in 53 patients (27 males, mean age 53+/-14 years) with type 2 diabetes and 53 age- and gender-matched controls. The patients with diabetes were divided into 2 groups by gender. Ed was not significantly different at rest between men and women, but was significantly higher during exercise in women than in men (25 W, 0.15+/-0.04 vs 0.20+/-0.07, p=0.009; 50 W, 0.16+/-0.05 vs 0.21+/-0.08, p=0.0175).

CONCLUSION: Left ventricular (LV) diastolic elastance is abnormal during exercise, but not at rest, in patients with diabetes without overt heart disease. Female gender was associated with increased LV stiffness during exercise among patients with type 2 diabetes.

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