Patterns of coronary compromise leading to bradyarrhythmias and hypotension in inferior myocardial infarction.

摘要: Background Occlusion and reperfusion of the acutely occluded right coronary artery may result in abrupt bradycardia hypotension, attributed to Bezold-Jarisch cardio-inhibitory reflexes arising from ischemic left ventricle. Given that ventricular infarction, a proximal occlusion, predisposes we hypothesized occlusions would be more likely bradycardia-hypotension compared distal occlusions. Methods In 216 patients with acute inferior myocardial infarction undergoing primary angioplasty artery, retrospectively analyzed incidence bradyarrhythmias hypotension during occlusion reperfusion. Results branches was identified 151 (70%) cases, but compromising atrioventricular nodal 65 (30%) others. During those were suffer (41 versus 15%, P=0.0002), advanced block (21 3%, P=0.0008) (25 9%, P=0.01). Similarly, frequently resulted (42 19%, P=0.002), (34 14%, P=0.004) (27 12%, P=0.02). Conclusions These data demonstrate reperfusion, develop commonly findings suggest ventricle play role hypotension.