Cocaine Positivity in ST-Elevation Myocardial Infarction: A True or False Association.

Introduction: Every year, more than 500,000 US Emergency Department visits are associated with cocaine use. People who use cocaine tend to have a lower incidence of true ST-elevation myocardial infarction (STEMI).

Objective: To identify the factors associated with true STEMI in patients with cocaine-positive (CPos) findings.

Safety and efficacy of switching from unfractionated heparin to bivalirudin during primary percutaneous coronary intervention.

Objectives: To evaluate the safety and efficacy of switching to bivalirudin during primary percutaneous coronary intervention (PCI) for patients who received preprocedure unfractionated heparin (UFH).

Background: Current guidelines favor bivalirudin for primary PCI in patients at high risk of bleeding, particularly when femoral access is used. However, patients with ST-segment elevation myocardial infarction frequently receive UFH before arrival in the catheterization laboratory.

Outcomes of Percutaneous Antegrade Intraluminal Coronary Intervention of Chronic Total Occlusion With Remote Surgical Backup.

Percutaneous coronary intervention (PCI) of chronic total occlusion (CTO) is not favored in facilities without on-site surgical backup. We reviewed outcomes of patients who had CTO intervention with remote surgical backup in our institution. All patients who underwent attempted antegrade intraluminal CTO PCI from January 2013 to July 2017 were analyzed.

Occlusion of right coronary artery by microembolization caused by excessive diagnostic catheter manipulation.

With advancing technology and newer therapeutic and diagnostic techniques, physicians are now encountering new complications or increasing frequency of known complications than before. left cardiac catheterization and coronary angiography is not an exception. As transradial cardiac catheterization is now becoming more popular, operators should be more aware of related challenges and limitations associated.

Double conduction through the atrioventricular node following acute medullary infarction: a case report.

Lateral medullary syndrome (LMS), also known as Wallenberg's syndrome, PICA syndrome, results from occlusion of the posterior inferior cerebellar artery, with associated infarction of parts of medulla oblongata, and cerebellum on the ipsilateral side. It often manifests as various patterns of sensory, motor, and autonomic deficits. While sensorimotor dysfunction presents as a predicted pattern of clinical signs and symptoms, autonomic dysfunction is usually less clinically apparent, and can be easily mistaken as a concomitant pathology in the end organ it affects.

Mortality and operator experience with vascular access for percutaneous coronary intervention in patients with acute coronary syndromes: A pairwise and network meta-analysis of randomized controlled trials.

Background: Recently, several meta-analyses of randomized controlled trials (RCTs) have shown that transradial access (TRA) reduces mortality compared to transfemoral access (TFA). However, a critical appraisal of these RCTs suggests that the findings could have resulted from a greater incidence of adverse events in the TFA groups rather than a beneficial effect of TRA.

Methods: Scientific databases and websites were searched for RCTs.

Predictors of left ventricular dilatation in young adults (from the Bogalusa Heart Study).

Left ventricular (LV) dilatation may be an early sign of cardiac decompensation progressing to LV dysfunction. Determinants of LV dilatation in young asymptomatic adults are unknown. Five hundred six asymptomatic subjects (mean age 32 +/- 3 years) enrolled in the Bogalusa Heart Study underwent echocardiographic examination.

Donor or recipient hepatitis B seropositivity is associated with allograft vasculopathy.

Background: Increasing interest has focused on possible viral triggers of cardiac allograft vasculopathy. Although much interest has centered on cytomegalovirus, it has recently been noted that donor hepatitis C seropositivity is associated with risk for accelerated vasculopathy. The current study hypothesized that hepatitis B (HBV) might be associated with accelerated vasculopathy.

Cardiac angiotensin II receptors as predictors of transplant coronary artery disease following heart transplantation.

Aims: We tested the hypothesis that cardiac angiotensin II (Ang II) receptor gene transcription may predict the development of transplant coronary artery disease (TCAD) following heart transplantation.

Methods And Results: We examined the gene transcripts of Ang II type 1 (AT1R) and type 2 receptors (AT2R) in endomyocardial biopsy specimens from 50 heart transplant recipients. The progression of TCAD was measured as change in maximal intimal thickness (CMIT) and change in plaque volume (CPV) by intravascular ultrasound (IVUS) examinations from baseline to one year after transplantation.

Donor hepatitis-C seropositivity is an independent risk factor for the development of accelerated coronary vasculopathy and predicts outcome after cardiac transplantation.

Background: It is possible, but unproven, that hepatitis C (HCV) infection accelerates atherosclerosis. We evaluated the hypothesis that donor HCV seropositivity predicts mortality and the development of coronary vasculopathy in cardiac transplant recipients.

Methods: Thirty-four cardiac transplant recipients who were seronegative for HCV at the time of transplantation received hearts from HCV-seropositive donors.

Computerized scoring of histopathology for predicting coronary vasculopathy, validated by intravascular ultrasound.

Background: Allograft coronary vasculopathy results from a complex interplay between immunologic and non-immunologic factors. We devised a computerized biopsy scoring method based on histopathology to predict the development of coronary vasculopathy.

Methods: One hundred forty heart transplant recipients underwent serial intravascular ultrasound analysis at baseline (within 1 month) and at 1 year after transplantation and were evaluated for development of coronary vasculopathy (change in coronary maximal intimal thickness, CMIT).

Myocardial ischemic-fibrotic injury after human heart transplantation is associated with increased progression of vasculopathy, decreased cellular rejection and poor long-term outcome.

Objectives: We sought to assess the influence of peritransplant ischemia and fibrosis on the development of allograft vasculopathy, acute cellular rejection and long-term outcome.

Background: Allograft vasculopathy is a common long-term complication of cardiac transplantation. One of the potential risk factors is peritransplant allograft ischemia.