American heart journal
-
American heart journal · Jun 2001
Multicenter StudyPercutaneous coronary intervention for cardiogenic shock in the SHOCK Trial Registry.
The SHOCK Registry prospectively enrolled patients with cardiogenic shock complicating acute myocardial infarction in 36 multinational centers. ⋯ This prospective, multicenter registry of patients with acute myocardial infarction complicated by cardiogenic shock is consistent with a reduction in mortality rates as the result of percutaneous coronary revascularization. Coronary artery patency was an important predictor of outcome. Measures to promote early and rapid reperfusion appear critically important in improving the otherwise poor outcome associated with cardiogenic shock.
-
American heart journal · Jun 2001
The use of intra-aortic balloon counterpulsation in patients with cardiogenic shock complicating acute myocardial infarction: data from the National Registry of Myocardial Infarction 2.
Cardiogenic shock complicating acute myocardial infarction (AMI) remains the leading cause of death in patients hospitalized with AMI. Although several studies have demonstrated the importance of establishing and maintaining a patent infarct-related artery, it remains unclear as to whether intra-aortic balloon counterpulsation (IABP) provides incremental benefit to reperfusion therapy. The purpose of this study was to determine whether IABP use is associated with lower in-hospital mortality rates in patients with AMI complicated by cardiogenic shock in a large AMI registry. ⋯ Patients with AMI complicated by cardiogenic shock may have substantial benefit from IABP when used in combination with thrombolytic therapy.
-
American heart journal · May 2001
Randomized Controlled Trial Comparative Study Clinical TrialLeft ventricular function and hemodynamic features of inappropriate left ventricular hypertrophy in patients with systemic hypertension: the LIFE study.
Predicted left ventricular (LV) mass for sex, height (2.7), and hemodynamic load can be used as an intrapatient reference for the observed LV mass. The ratio of observed/predicted LV mass may allow more physiologically correct comparisons of LV geometry, systolic and diastolic functions, and hemodynamics among hypertensive patients. ⋯ Among hypertensives with LV hypertrophy, iLVH identified cardiac phenotypes with a high prevalence of myocardial systolic dysfunction.
-
American heart journal · May 2001
Comparative StudyExercise versus dobutamine-induced ST elevation in the infarct-related electrocardiographic leads: clinical significance and correlation with functional recovery.
The clinical significance of stress-induced ST elevation early after acute myocardial infarction and its relation to functional recovery remain controversial. The aims of this study were (1) to determine the incidence of ST elevation during dobutamine and exercise tests and (2) to assess the relative accuracy of exercise and dobutamine ST elevation for predicting functional recovery after acute myocardial infarction. ⋯ Stress-induced ST elevation is an ancillary sign of viable myocardium that can recover. The sum of ST elevation at peak dobutamine stress correlates with the extent of functional recovery.