Cardiology Commons^™

Sex And Race Differences In Electrocardiogram Use (The National Hospital Ambulatory Medical Care Survey), Amy L. Arnold, Kerry A. Milner, Viola Vaccarino

Nursing Faculty Publications

There are sex and race differences in many aspects of health care delivery. For example, blacks and women are less likely to receive aspirin and thrombolytic drugs. Blacks and women presenting with chest pain are less likely to be referred for cardiac catheterization. Blacks and women diagnosed with acute myocardial infarction (AMI) are also less likely to undergo cardiac catheterization. The gender differences in diagnostic evaluation after AMI appear more pronounced among younger women. The American College of Cardiology and the American Heart Association joint electrocardiography guidelines state that all patients presenting to the emergency department (ED) with chest pain …

Presentation And Symptom Predictors Of Coronary Heart Disease In Patients With And Without Diabetes, Marjorie Funk, Janice B. Naum, Kerry A. Milner, Deborah Chyun

Nursing Faculty Publications

The aims of this prospective, observational study were to compare: (1) symptom presentation of coronary heart disease (CHD) between patients with and without diabetes and (2) symptom predictors of CHD in patients with and without diabetes. We directly observed 528 patients with symptoms suggestive of CHD as they presented to the ED of a 900-bed cardiac referral center in the northeastern United States. There were no significant differences in symptom presentation of CHD between patients with and without diabetes, although patients with diabetes were slightly more likely to present with shortness of breath (P =.056). Patients with diabetes reported …

Mapping And Ablation Of Complex Cardiac Arrhythmia Guided By A Novel Three Dimensional Non-Contact Endocardial Activation Mapping System, Wing-Hong Fung, Chi-Kin Chan, Kam-Sang Woo, Wilson Wai-Man Chan

Journal of the Hong Kong College of Cardiology

Conventional cardiac activation mapping requires a sequentially-based method of positioning a catheter in contact with the endocardium to generate intracardiac electrograms at single points during sustained arrhythmia. Significant limitation of such point by point mapping may be encountered when applying to complex arrhythmia e.g. non-sustained arrhythmia or haemodynamically unstable arrhythmia. A novel non-contact mapping system (Ensite 3000 system) providing a three-dimensional simultaneous display of arrhythmia activation may offer a solution. The non-contact mapping system consists of a specially designed balloon catheter (Ensite EP catheter) with 64 insulated wires over the surface of the balloon for sensing electrical potentials on the …

The Use Of Wallstent And Smart Stents Incarotid Stent-Supported Angioplasty, Steven Siu-Lung Li

Journal of the Hong Kong College of Cardiology

In the endovascular approach of carotid stenosis treatment, stent-supported angioplasty is current state-of-the-art technique. Self-expandable stents are preferable to balloon-expandable stents due to the potential risk of deformation of the latter by external pressure. Wallstents and SMART stents are the more commonly used self-expandable stents. They appear to be of similar efficacy and safety but due to their different characteristics, their applications may be different according to different lesion characteristics.

Psychosocial Correlates Of Physiologlcal Improvement In Female Cardiac Patients: Improving Effectiveness Of Cardiac Rehabilitation Programs, Linda A. Halvorsen

All-Inclusive List of Electronic Theses and Dissertations

The purpose of this study was to determine the relationship between a set or psychosocial variables and a set of physiological variables for a cohort of female cardiac rehabilitation patients. The independent variable set included initial denial, inlcnwl locus of control, perceived mental health status, and perceived physical health status. Dependent variables included change scores for metabolic equivalents and resting heat rate. The sample consisted of76 women who were enrolled in a Phase II cardiac rehabilitation program. Demographic information including number of completed rehabilitation sessions, age, martial status, and diagnosis was provided. A series of bivariate correlations were conducted to …

Arrhythmogenic Right Ventricular Cardiomyopathy, Wing-Hong Fung, Chi-Kin Chan, John E. Sanderson

Journal of the Hong Kong College of Cardiology

Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a familial form of cardiomyopathy predominantly affecting the right ventricle but may progress to involve the left ventricle as well. At the late stage of the disease, it is sometimes difficult to differentiate with other forms of dilated cardiomyopathy. In most affected families, the mode of inheritance of the disease is autosomal dominant. Lately, the gene accounting for the autosomal recessive form of ARVC, which was associated with palmoplantar keratosis, was identified. ARVC can present with sudden cardiac death without any preceding symptoms in the young population. Therefore, ARVC must be included in the …

Post-Infarction Left Venticular Free Wall Rupture, S M. Nadeem, S A. Sami, G Khan, N Basir, K A. Kazmi

Section of Cardiology

No abstract provided.

Association Of Viral Genome With Graft Loss In Children After Cardiac Transplantation., Girish S. Shirali, J Ni, R E. Chinnock, J K. Johnston, G L. Rosenthal, N E. Bowles, J A. Towbin

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: The survival of recipients of cardiac allografts is limited by rejection, lymphoproliferative disease, and coronary vasculopathy. The purpose of this study in children who had received heart transplants was to evaluate the cardiac allografts for myocardial viral infections and to determine whether the presence of viral genome in the myocardium correlates with rejection, coronary vasculopathy, or graft loss.

METHODS: We enrolled heart-transplant recipients 1 day to 18 years old who were undergoing evaluation for possible rejection and coronary vasculopathy. Endomyocardial-biopsy specimens were evaluated for evidence of rejection with the use of standard criteria and were analyzed for the presence …

Thrombolytic Therapy For Acute Myocardial Infarction In The Elderly, Bernard Bun-Lap Wong, Wai-Hong Chen

Journal of the Hong Kong College of Cardiology

Acute myocardial infarction (MI) is a leading cause of morbidity and mortality in developed countries. Patients ≥75 years constitute up to 30% of the acute MI population and are associated with a 50% in-hospital mortality. Thrombolytic therapy was shown in a metaanalysis of 9 largest randomized controlled trials to reduce 35-day mortality. However, the benefit was observed mainly among patients < 75 years old. For patients ≥ 75 years, the 35-day mortality was 24.3% in those treated with thrombolytic therapy and 25.3% in the placebo group, a difference not reaching statistical significance.

Cardiac Hypertrophy, Heart Failure, And Regulation Of Microtubule Stability, Kristie Lynn Beaton-Blade

MUSC Theses and Dissertations

This work focused on the regulation of the different isotypes of beta-tubulin during cardiac hypertrophy, with the specific hypothesis that increased levels of the beta I isotype leads to the increase in microtubule density seen during hypertrophy. Partial cDNAs for the three beta-tubulin isotypes expressed in the heart (I, II, and IV) have been cloned and used to show that there is a differential upregulation of the beta I and beta II isotypes during cardiac hypertrophy. Messenger RNA half-life studies of cells isolated from hypertrophied myocardium have shown that this upregulation is due to increased transcription of the genes encoding …