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Association of Severity of Coronary Artery Disease with Left Ventricular Diastolic Dysfunction among Diabetics with Stable Ischaemic Heart Disease: A Cross-sectional Study from Odisha, India
OC05-OC09
Correspondence
Dr. Avradip Santra,
15/1, Karar Pukur Lane, PO Howrah, Howrah-711101, West Bengal, India.
E-mail: dravradip@gmail.com
Introduction: Ischaemic Heart Disease (IHD) is one of the most common co-morbidity among Indian population, so is Diabetes Mellitus (DM). IHD is associated not only with systolic, but also with Diastolic Dysfunction (DDFx) of Left Ventricle (LV). However, there is scarcity of data correlating the severity of Coronary Artery Disease (CAD) with LV DDFx.
Aim: To assess the severity of CAD in diabetic stable IHD patients with normal LV systolic function (LV Ejection fraction ≥50%) and it’s association with degree of DDFx.
Materials and Methods: A prospective cross-sectional study was conducted over a period of one year, in a tertiary care hospital of Odisha, India among diabetic stable IHD patients. Grades of DDFx were assessed among the study population, using Transthoracic Echocardiography (TTE). Subsequently, severity of CAD was assessed, using invasive Coronary Angiography (CAG) using The SYNergy between percutaneous coronary intervention with TAXus and cardiac surgery (SYNTAX) score. Next, grades of DDFx were correlated with severity of IHD.
Results: Among a total of 93 diabetic stable IHD patients with normal LV ejection fraction, 76.3% were males and the mean age was 60.7±8.9 years. Majority presented with chronic stable angina (59, 63.4%). Hypertension (50, 53.7%), followed by dyslipidaemia (36, 38.7%) and renal dysfunction (19, 20.4%) were the most common co-morbidities. Majority of patients had grade I (39.8%), followed by grade II (17.2%), and grade III (9.7%) DDFx. On invasive CAG, 39.8% had a SYNTAX score of ≤22, 36.6% had a score of 23-32, and 23.6% had a score of ≥33. Grades of DDFx were found to be significantly higher among the patients with greater SYNTAX score.
Conclusion: Among diabetic stable IHD patients, greater the severity of CAD on CAG, higher were the grades of DDFx.