Impact of Multiarterial Revascularization on Long-term Major Adverse Cardiovascular Events After Coronary Bypass in 23,798 Patients.

Background: This study evaluated the association between bypass grafting with multiarterial grafts (MAG) and single arterial grafts (SAG) and all-cause mortality and major adverse cardiovascular and cerebrovascular events (MACCE), overall and across different patient subgroups from a Middle Eastern nation.

Methods: This single-center retrospective cohort study included 23,798 patients. MAG and SAG groups were balanced using inverse probability weighting (IPW).

Predicting outcomes in patients with low ejection fraction undergoing coronary artery bypass graft.

Introduction: Reduced left ventricular ejection fraction (LVEF) is a well-known predictor of adverse events after cardiac surgery. We aimed to assess the outcomes in patients with low LVEF undergoing coronary artery bypass graft.

Methods: In this retrospective cohort, we included all patients with left ventricular ejection fraction ≤ 40 who underwent coronary artery bypass grafting between March 2007 and March 2016 (with a median follow-up of nine years) at Tehran Heart Center.

Do adventitial mast cells contribute to the pathogenesis of ascending thoracic aorta aneurysm?

The precise pathogenesis of the ascending aortic aneurysm (AscAA) remains to be determined. Mast cells in the adventitia of human AscAA lesions may play a role in this pathogenesis. Adventitial mast cell density per 10 high-power fields (0.

Perivascular nitric oxide delivery to saphenous vein grafts prevents graft stenosis after coronary artery bypass grafting: a novel sheep model.

Objectives: Graft stenosis is a major complication of coronary artery bypass grafting with autologous saphenous vein grafts. Nitric oxide (NO) is believed to prevent this phenomenon. We studied the effect of perivascular application of an NO donor on the degree of stenosis of such grafts in an ovine model.

Relationship between body mass index and left main disease: the obesity paradox.

Background And Aims: Obesity is a well-known risk factor for development of diabetes, hypertension, and coronary artery disease. However, the obesity paradox shows that short-term outcome has been reported to be superior after revascularization in overweight patients. We conducted this study to examine this theory in patients who were candidates for coronary artery bypass graft and to determine if there is a relationship between obesity and the severity of coronary artery involvement and left main disease in Iranian patients.

The association of opium dependence and postoperative complications following coronary artery bypass graft surgery: a propensity-matched study.

Objective: Opium is an overwhelming public health problem in some countries. Different studies have suggested this drug as a risk factor for cardiovascular disease. Although the effect of opium on immune system, lung disease, nephropathy, stroke, and cardiac arrhythmia has been found in different studies, its effect on postoperation complications is not clear yet.

Is severely left ventricular dysfunction a predictor of early outcomes in patients with coronary artery bypass graft?

Background: Traditionally, the Coronary artery bypass grafting (CABG) surgery outcomes of patients with low ejection fraction (EF) have been worse compared to patients with moderate to good left ventricular function. During the past decade, despite improvements in surgical techniques, the trend in the outcomes of these patients remained unclear.

Aim: We sought to determine the effect of left ventricular dysfunction on early mortality and morbidity and to specify predictors of early mortality of isolated CABG in a large group of patients EF≤35%.

Screening of carotid artery stenosis in coronary artery bypass grafting patients.

Background: We sought to evaluate the routine echo-Doppler screening of carotid artery stenosis in patients undergoing coronary artery bypass grafting.

Methods: A total of 2179 consecutive patients who underwent coronary artery bypass grafting alone or with other cardiac surgery at Tehran Heart Center, Tehran-Iran, between January 2005 and January 2006 were included in this retrospective study. Carotid Doppler was performed for 1604 (81.

Scimitar vein anomaly with total right-side pulmonary vein return to inferior vena cava concomitant with atresia of upper right-side pulmonary vein and secundum atrial septal defect.

Scimitar vein is the partial anomalous pulmonary venous connection usually draining lower pulmonary lobe to the inferior vena cava or right atrium. We present a scimitar vein anomaly in a 34-year-old woman with the uncommon association of a secundum type of atrial septal defect and atretic right upper pulmonary vein. She presented with increasing dyspnea for 2 months, however, she was asymptomatic in the past 10 years despite the presence of atrial septal defect.

Traditional cardiac risk factors profile in Iranian patients undergoing coronary artery bypass surgery.

Objective: It is well known that the traditional cardiac risk factors (TCRFs) affect short-term and long-term outcome following coronary artery bypass graft surgery (CABG). The objective of this study was to detect the prevalence of these risk factors i.e.

Determinant factors of renal failure after coronary artery bypass grafting with on-pump technique.

Objective: The aim of the present study was to investigate the determinant factors of acute renal failure (ARF) after isolated on-pump coronary artery bypass grafting (CABG).

Subjects And Methods: This was a retrospective study of 13,315 adult patients who underwent isolated CABG with cardiopulmonary bypass (CPB) in Tehran Heart Center from May 2002 to May 2007. The exclusion criteria were age <18, concomitant cardiac and/or noncardiac surgical operations, history of renal failure before surgery, and chronic renal failure requiring dialysis.

Cardiac and great vessel involvement in "Behcet's disease".

Behcet's disease is a multisystem disorder and classified as "vasculitic syndrome with a wide variety of clinical manifestations." Cardiac involvement is very rare but can occur with different presentations including: pericarditis, cardiomyopathy, endocarditis, endomyocardial fibrosis, intracavitary thrombosis, and coronary artery disease. Great vessel involvement is more common.

Factors affecting postoperative morbidity and mortality in isolated coronary artery bypass graft surgery.

Purpose: This study was conducted to investigate predictors of mortality before and after isolated coronary artery bypass grafting (CABG).

Methods: Single-institutional data on risk factors and mortality were collected for 8890 patients who underwent isolated CABG by the same group of surgeons. The relationship between risk factors and outcome was assessed using univariate and multivariate analyses in two risk models: a preoperative model (model 1) and then a pre-, intra-, and postoperative model (model 2).

Mature cardiac myocyte hamartoma in the right atrium.

During coronary artery bypass grafting in a 58-year-old man, a mass was discovered incidentally in the right atrium, measuring 1.5 x 1 x 0.5 cm.

Mortality in open heart surgery with intraaortic balloon pump support.

Mechanical circulatory assistance is frequently needed to support the failing heart. The aim of this study was to determine perioperative prognostic factors for hospital mortality in patients undergoing open heart surgery who required intraaortic balloon pump support. Between January 2002 and September 2006, 475 patients received an intraaortic balloon pump perioperatively.

Early outcomes of double-vessel coronary endarterectomy in comparison with single-vessel coronary endarterectomy.

Our goal was to investigate the safety of single- and double-vessel coronary endarterectomy as an adjunct to coronary artery bypass grafting in patients with diffuse coronary disease. In reviewing the records of 9,443 patients who underwent isolated coronary artery revascularization over a 4-year period, we found 310 patients (3.28%) who underwent concomitant coronary artery endarterectomy, 39 of whom (12.

Mesothelial/monocytic incidental cardiac excrescence.

Mesothelial/monocytic incidental cardiac excrescence (MICE) is a very uncommon lesion. Diagnosis is incidental and may simulate thrombotic lesions. One of the hypotheses with regard to the etiology of this lesion is a previous cardiac procedure especially mitral valve repair or commissurotomy.

Superficial and deep sternal wound infection after more than 9000 coronary artery bypass graft (CABG): incidence, risk factors and mortality.

Background: Sternal wound infection (SWI) is an uncommon but potentially life-threatening complication of cardiac surgery. Predisposing factors for SWI are multiple with varied frequencies in different studies. The purpose of this study was to assess the incidence, risk factors, and mortality of SWI after coronary artery bypass grafting (CABG) at Tehran Heart Center.

24-hour in-hospital mortality predictions in coronary artery bypass grafting patients.

Background: The purpose of this study was to determine the factors that can help predict risk of mortality in the first 24 h of coronary artery bypass grafting (CABG), because mortality within a few hours of surgery is a disastrous event for surgeons and the patient's family.

Methods: The study population consisted of 120 in-hospital mortality cases (1.07%) from 11,183 patients who underwent CABG from February 2002 to February 2006 by the same group of surgeons in a referral center.