Myocardial Infarction Case Study

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Pages: 4

Abstract
Background : Myocardial infarction (MI) is defined as myocardial cell necrosis due to significant and sustained ischemia. TN-C is an extracellular matrix glycoprotein that is expressed in several important steps during the very early stage of cardiogenesis. TN-C is not normally expressed in the adult heart, but transiently appears during pathological conditions and plays important roles in tissue remodeling.
Aim: to study the role of Tenascin-C in myocardial infarction patients `and to evaluate its role as a predictor of heart failure in these patients.
Methods: This study was conducted on 45 cases uniformly divided into 3 closely matched (in age and sex) groups as following Group (I): includes 15 patients who were suffering from
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Introduction Myocardial infarction (MI) is defined as myocardial cell necrosis due to significant and sustained ischemia(1). Acute myocardial infarction (AMI) is an important medical problem in industrialized countries with 25% of these patients developing congestive heart failure (CHF) as a complication. AMI is caused by occlusion of one or more of coronary arteries. The infarct size is a major predictor of left ventricular remodeling following the infarction. Excessive left ventricular remodeling causes progression to heart failure and is a major predictor of morbidity and mortality (2). TN-C is an extracellular matrix glycoprotein that is expressed in several important steps during the very early stage of cardiogenesis. At first TN-C is expressed by precardiac mesodermal cells, when they differentiate into cardiomyocytes. Once the cells become differentiated and express sarcomeric proteins, they stop expressing TN-C …show more content…
Thus the effects of Tenascin-c on ventricular remodeling are not simple but rather bidirectional (12).
The levels of tenascin-C and its relationship with heart function in patients with ischaemic heart disease were unclear, and the prognostic value of tenascin-C in ischaemic cardiomyopathy has not been fully investigated.
The aim of this work is to study the role of serum Tenascin C in myocardial infarction patients` to evaluate its role as a predictor of heart failure in these patients.

Methods: This study was conducted in on 45 cases uniformly divided into 3 closely matched (in age and sex) groups as following Group (I): includes 15 patients who were suffering from AMI. Group (II): includes 15 patients were suffering from HF on top of myocardial infarction (MI) and Group (III): includes 15 healthy volunteers coming for regular annual check- up.
Exclusion criteria included:
- Patients presented with heart failure due to other causes than myocardial infarction.
- Patients with chronic renal failure.
- Patients with chronic liver