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Year : 2019  |  Volume : 9  |  Issue : 4  |  Page : 205-210

Exercise electrocardiogram testing in asymptomatic patient with type 2 diabetes and left ventricular diastolic dysfunction

Department of Cardiology, Faculty of Medicine, Zagazig University, Zagazig, Egypt

Correspondence Address:
Dr. Ahmed Shaker
Department of Cardiology, Faculty of Medicine, Zagazig University, Zagazig
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/JICC.JICC_21_19

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Background: Type 2 diabetes mellitus (DM) is an established risk factor for cardiovascular events and the development of congestive heart failure (HF). Diastolic dysfunction is considered a precursor of HF and may be diagnosed noninvasively by echocardiography. Diastolic dysfunction is common in well-controlled type 2 diabetic patients without clinically detectable heart disease. Left ventricular diastolic dysfunction represents the earliest preclinical dysfunction and that it can progress to asymptomatic HF. Aim of the Work: The aim of the study is to evaluate if diastolic dysfunction in diabetic patients is due to silent ischemia. Methods: This study included 80 asymptomatic patients with type 2 DM. Echocardiography was done to all patients to assess systolic and diastolic functions. Exercise electrocardiogram (ECG) was done for all patients to detect ischemic heart disease. Coronary angiography was done to patients with positive exercise ECG test. Results: The incidence of diastolic dysfunction was 75%; among the studied groups. Impaired relaxation was detected in 87 % and pseudo normal pattern was detected in 13 % of subjects with diastolic dysfunction. Patients with normal diastolic function had negative stress exercise test, while those with diastolic dysfunction, 12 patients had positive exercise stress ECG (40%) and 18 patients had negative exercise stress ECG (60%). Conclusion: These findings indicate that coronary artery disease is not uncommon in diabetic patients with diastolic dysfunction and increase markedly in patients with positive stress exercise electrocardiography.

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