Permanent pacemaker implantation in unexplained syncope patients with electrophysiology study-proven atrioventricular node disease.

Objective: Syncope, whose cause is unknown after an initial assessment, has an uncertain prognosis. It is critical to identify patients at the highest risk who may require a pacemaker and to identify the cause of recurrent syncope to prescribe proper therapy. The aim of this study was to evaluate the effect of permanent pacing on the incidence of syncope in patients with unexplained syncope and electrophysiology study (EPS)-proven atrioventricular (AV) node disease.

Permanent pacemaker implantation in unexplained syncope patients with borderline sinus bradycardia and electrophysiology study-proven sinus node disease.

Background: Significant sinus bradycardia (SB) in the context of sinus node dysfunction (SND) has been associated with neurological symptoms. The objective was to evaluate the effect of permanent pacing on the incidence of syncope in patients with rather mild degrees of SB, unexplained syncope, and "positive" invasive electrophysiologic testing.

Methods: This was an observational study based on a prospective registry of 122 consecutive mild SB patients (61.

Comparison of prognostic risk scores after successful primary percutaneous coronary intervention.

Background: The aim of this study was to compare the predictive ability of clinical risk scores (ACEF, EuroSCORE and EuroSCORE II) to angiographic (SYNTAX score) and combined risk scores (Global Risk Score and Clinical SXscore) towards cardiovascular death and/or major adverse cardiac events (MACE) in patients with ST-segment elevation acute myocardial infarction (STEMI) managed with primary percutaneous coronary intervention (pPCI).

Methods: A total of 685 patients successfully treated with pPCI were evaluated and the risk scores were calculated. The primary endpoint was the 2-year incidence of fatal cardiac events.