background: myocardial ischemia is one of several causes of prolonged qt dispersion. the aim of this study was to evaluate the effect that percutaneous coronary intervention has on the depolarization and repolarization parameters of surface electrocardiography in patients with chronic stable angina. methods: we assessed the effects of full revascularization in patients with chronic stable angin...

coronary artery perforation is a rare, but potentially serious, complication of percutaneous coronary intervention and is associated with a high incidence of death, q-wave myocardial infarction, and emergency coronary bypass surgery. management is different but requires prompt recognition and treatment. we describe a case of coronary perforation only after guidewire removal and also review the ...

results mean age of patients was 59.47 (sd = 12.48) years, of which 75 (75.8%) were male and 24 (24.2%) were female. based on univariable analysis, white blood cell (wbc) count, pain duration, lv function, maximal st-change, thrombus grade and eccentricity were identified as predictors of the no-reflow phenomenon. after multivariable logistic regression: wbc count and thrombus grade remained th...

background: this study was designed to examine a unique and low dose use of intravenous enoxaparin in elective percutaneous coronary intervention (pci) that would be applicable to an unselected population regardless of age, weight, and renal function. there is limited experience in anticoagulation using intravenous low-molecular-weight heparin in pci. methods: a total of 100 consecutive patient...

background: stenting is currently the standard of care in percutaneous coronary intervention (pci). whether young patients remain at increased risk after pci in the present stent era has not been investigated widely. we evaluated angiographic characteristics and short- and mid-term outcomes in patients younger than 40 years of age who underwent pci. methods: from april 2003 to march 2005, prosp...

Background: This study aims to evaluate the effect of exercise training on heart rate variability (HRV) and to determine the correlation between parameters of HRV and the ejection fraction in patients with heart failure after percutaneous coronary intervention.Material and Methods: Fifty patients with left ventricular ejection fraction ≤ 40% undergone percutaneous coronary intervention were r...

normal 0 false false false en-us x-none ar-sa background: contrast induced kidney injury is an acute renal dysfunction that is secondary to the administration of radio contrast media. the purpose of this study was to evaluate the levels of urotensin-ii (ut-ii) and endothelin-i (et-i) after contrast media administration in patients undergoing percutaneous coronary interventions. materials and me...

background: studies have shown controversial effects of obesity on major adverse cardiac events (mace) after percutaneous coronary intervention (pci). we sought to investigate the impact of the body mass index (bmi) on the mid-term outcome following successful pci. methods: between march 2006 and august 2008, 3948 patients underwent successful elective pci in tehran heart center, tehran, iran, ...

regardless of the clinical setting, a good back-up represents one of the most important conditions to ensure guide wire and balloon advancement and stent delivery. as a “mother and child” system, the guideliner catheter (vascular solutions inc., minneapolis, mn, usa) provides an extension to the guide catheter with better coaxial alignment and stability. we report two didactic cases showing the...

background: patients with chronic stable angina often have a state of sympathetic hyperactivity. it is considered associated with myocardial ischemia and disappears after ischemia elimination. the aim of this study was to investigate the changes in heart rate variability parameters, a noninvasive technique for the evaluation of the autonomic nervous system activity, after successful revasculari...