Venkatesan D. Vidi

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Tako-tsubo cardiomyopathy (TTC) is increasingly diagnosed in the United States, especially in the Caucasian population. To evaluate the clinical features and outcome of patients with TTC, we evaluated 34 patients (32 women and 2 men) 22 to 88 years of age (mean 66 +/- 14) who fulfilled the following criteria: (1) akinesia or dyskinesia of the apical and/or(More)
BACKGROUND Low testosterone is an independent predictor of reduced exercise capacity and poor clinical outcomes in patients with heart failure (HF). We sought to determine whether testosterone therapy improves exercise capacity in patients with stable chronic HF. METHODS AND RESULTS We searched Medline, Embase, Web of Science, and Cochrane Central(More)
OBJECTIVES This study sought to quantify the learning curve for the safety and effectiveness of a newly introduced vascular closure device through evaluation of the NCDR (National Cardiovascular Data Registry) CathPCI clinical outcomes registry. BACKGROUND The impact of learning on the clinical outcomes complicates the assessment of the safety and(More)
OBJECTIVES The goal of this study was to assess the frequency and predictors of vascular closure device (VCD) deployment failure, and its association with vascular complications of 3 commonly used VCDs. BACKGROUND VCDs are commonly used following percutaneous coronary intervention on the basis of studies demonstrating reduced time to ambulation, increased(More)
BACKGROUND Automated adverse outcome surveillance tools and methods have potential utility in quality improvement and medical product surveillance activities. Their use for assessing hospital performance on the basis of patient outcomes has received little attention. We compared risk-adjusted sequential probability ratio testing (RA-SPRT) implemented in an(More)
Randomized controlled trials have shown improved short-term bleeding outcomes for bivalirudin compared to unfractionated heparin (UFH) in patients undergoing percutaneous coronary intervention (PCI) for stable angina and acute coronary syndrome. This study analyzed the impact of bivalirudin-based anticoagulation strategy versus UFH-based anticoagulation(More)
Tako-tsubo syndrome is a cardiac syndrome triggered by emotional or physical stress and characterized by acute extensive but reversible akinesia of the apex and mid part of the left ventricle (LV) in the absence of obstructive coronary artery disease. It typically presents with chest pain and/or dyspnea and may mimic an acute coronary syndrome (ACS) with(More)
BACKGROUND Post-market medical product safety surveillance is a complex task requiring standardized data collection, prompt adverse event reporting mechanisms and appropriate methodologies to identify low frequency safety threats and risk communication. PURPOSE To review the design of the DELTA (Data Extraction and Longitudinal Trend Analysis) network(More)
Hydropneumopericardium is a very rare complication of long-standing paraesophageal hernia, occurring as a result of rupture of the intrathoracic gastric volvulus into the pericardium. A chronic paraesophageal hernia that is complicated by gastric volvulus can develop into such surgical emergencies as acute gastric obstruction, strangulation, perforation,(More)