12/12/2023 0 Comments Timi score in acute mi![]() Indeed, ventricular tachycardia and ventricular fibrillation cause the vast majority of all deaths in the acute phase of STEMI. Ventricular tachycardia (VT) and ventricular fibrillation (VF) may occur at any time after occlusion of the coronary artery. For the same reason, patients with STEMI are at higher risk of life-threatening ventricular arrhythmias in the acute phase. The reason symptoms are more severe in patients with STEMI, as compared with NSTEMI and unstable angina (UA), is because the extent of the ischemia is greater in STEMI (i.e a larger portion of the myocardium is ischemic). ![]() A large body of evidence supports the concepts and recommendations presented in this chapter.Ĭhest pain (or discomfort) is the hallmark of myocardial ischemia and it is especially pronounced in patients with acute STEMI. Management of acute STEMI will be discussed in detail with emphasis on evidence-based therapies. The clinical definitions and recommendations presented in this chapter are in line with guidelines issued by the American Heart Association (AHA), American College of Cardiology (ACC) and the European Society for Cardiology (ESC). Although ECG changes in acute STEMI have been discussed previously (refer to ECG Changes in Acute Myocardial Infarction), a rehearsal is provided below. This chapter deals with the pathophysiology, definitions, criteria and management of patients with acute STEMI. STEMI (ST Elevation Acute Myocardial Infarction): Epidemiology, Diagnosis (ECG), Criteria & ManagementĪcute STEMI (ST Elevation Myocardial Infarction) is the most severe manifestation of coronary artery disease.
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