[Hypotension during acute myocardial infarct. Different pattern of parameters of renal function in relation to the localization of necrosis].

Background: The influence on renal function caused by acute myocardial infarction complicated by hypotension has been studied. Particularly, a possible difference in renal functional pattern related to different localization and/or extension of necrotic myocardial area was investigated.

Methods: The study has been performed in 12 cases of acute myocardial infarction, involving anteroseptal (7) or inferodorsal (5) myocardial wall.

[Vasovagal syncope and increased baroreceptor activity: evidence for increased sensibility of the baroreflex and its rapid reversal with acute administration of metoprolol].

In 17 patients suffering from recurrent episodes of vasovagal syncope as well as in 21 healthy subjects without clinical episodes of presyncope or syncope, we evaluated the reflex decrease in heart rate evoked by the phenilephrine test. In the syncopal patients, the measurements were taken 4-12 hours after the clinical appearance of syncope. We divided the syncopal patients as follows: 9 patients, undergoing pharmacological treatment, and 8 untreated patients (drug free arm).