0000000000161273
AUTHOR
G. L. Piraino
The Role of Cardiac Pacing in Heart Block Complicating Acute Myocardial Infarction
The organization of the Coronary Care Unit and the use of electrocardiographic monitoring have allowed a re-evaluation of the incidence of the atrioventricular conduction disturbances in acute myocardial infarction.
Platelet Function Changes In Acute Myocardial Infarction
Whether the thrombotic component of myocardial infarction is primary or secondary in a given patient, platelet function alterations can influence many mechanism from which depends if the thrombotic lesion grows or sends platelet emboli to the smaller myocardial vessels. Recently in some cases of infarction, coronary artery spasm has been demonstrated angiographically; thromboxanes, vasoconstrictive and platelet-aggregating substances, are released by platelets during myocardial ischemia. The local release of these substances may modify the myocardial cell viability and regional blood flow.The aim of the present study was to investigate changes in platelet function in relation to the time in…
Platelet Function Changes in Acute Myocardial Infarction
Whether the thrombotic component of myocardial infarction is primary or secondary in a given patient, platelet function alterations can influence many mechanisms — operating at the microenvi-ronmental level — from which it depends if the thrombotic lesion grows or sends platelet emboli to the smaller myocardial vessels.
Hemodynamic Effects of Ventricular Pacing
Fixed rate ventricular pacing is used in most cases of implanted pacemakers. It does not usually create considerable hemodynamic problems, as the heart, by its adaptation mechanism, is capable of varying its pump performance to meet the metabolic needs[1,3].