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Diabetes mellitus is a common metabolic disorder that is associated with long-term complications of various organs, such as cardiovascular system. This study is about evaluation of myocardial function and determination of related cardiovascular factor in type 2 diabetic patients who referred to diabetes clinic of 5th Azar Hospital from 200 patients who referred to the clinic, 48.5% had diastolic and 29.5% had systolic dysfunction. Related factors with both diastolic and systolic dysfunction of diabetic patients are: HbA1c level (Control of diabetes), duration of diabetes and hypertension. This investigation shows that: Incidence and severity of systolic and diastolic dysfunction in type 2 diabetic patients are related to metabolic state and quality of diabetic control. Incidence of hypertension increase in diabetic patients, and hypertension is an important risk factor in diastolic and systolic dysfunction. Diastolic dysfunction is more common than systolic dysfunction in diabetic patients. Intensive control of blood Glucose level lead to decreasing the incidence of coronary artery disease in diabetic patients. We suggest, intensive control of blood Glucose level, treatment of hypertension, regular cardiovascular evaluation in diabetic patients and screening test for early diagnosis of diabetes in high-risk population should be taken under consideration.

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Background&Objective: Prolongation of QRS duration particularly in Left bundle Branch Block (LBBB) is commonly associated with many cardiac diseases. Electrocardiographic study of QRS duration and electrical axis may be predictors of sever LV systolic dysfunction. Materials&Methods: In this prospective Study conducted in cardiac ward CCU and out- patient clinic of Sh. Beheshti hospital in Babol (1999-2001), 150 patients with diagnosis of LBBB divided to two groups (one QRS≥0.16 second and the other with QRS<0.16) second . Then relationship between QRS- duration, Left axis deviation and echocardiographic LV ejection fraction analysed. Results: There wasn’t significant correlation between ages, gender, and type of cardiac disease with ejection fraction among patients with LBBB. The mean ejection Fraction in the patients with a QRS duration0.16 second (n=19) was significantly lower than the mean ejection fraction in the patients with a QRS duration<0.16 second (n=131) (P<0.05) Presence of Left axis deviation associated with LBBB did not have added predictive value and was not significantly correlated with Ejection Fraction. Conclusion: As conclusion, the QRS duration 0.16 second in the presence of LBBB has a significant inverse relation with Ejection Fraction and is a simple and appropriate marker of significant left ventricular dysfunction.