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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Factors influencing women's enrollment in cardiac rehabilitation : patient and support person perspectives

Northrup-Snyder, Kathlynn 02 May 2002 (has links)
Coronary Heart Disease (CHD) accounts for almost 20% of all deaths in the United States and is a leading cause of premature death and disability. The cost for this disease includes not only lost work years, but billions of health care dollars. Women account for almost half of the deaths from CHD and rates for the death of young women have risen 30% from 1988 to 1998. For the two-thirds of women who survive the initial coronary event, the risk of future events and disability increases. Cardiac rehabilitation (CR) is a multi-disciplinary program designed to reduce this risk. Unfortunately, only 25% of eligible women attend the program. Few studies have analyzed the factors that influence women's CR enrollment choices making a careful examination of these factors particularly relevant. The purpose of this study was to qualitatively explore the factors associated with a woman's decision to enroll, or not enroll, in CR from the perspectives of the patient and her support person. Twenty-five women (15 enrolled in CR, 10 not enrolled in CR) and 24 matched support persons (one person's supporters refused to participate) were interviewed using a semi-structured format from September, 1999 to January, 2001. Questions addressed the beliefs, affect, social referents, past experiences/habits, and facilitating/constraining conditions related to CR enrollment choices. Support persons were asked to respond to these questions from their perception of their loved one's attitudes, beliefs and health care seeking behaviors. Information from the interviews was transcribed verbatim, entered into NUD*IST, and coded using the components of the Expanded Theory of Reasoned Action (Triandis, 1977) as a framework. Descriptive analyses was done on basic demographic information, including perceptions of health and depression. There were specific factors identified in each of the primary categories of affect, beliefs, facilitating/constraining factors, and social referents and information. The key findings indicated that a lack of information on CR, feelings related to the perceived necessity of CR, transportation, finances, and accessibility were primary factors in enrollment behavior. Overall agreement between the cardiac female and her support person existed in most categories, except affect, where a minimum number of emotions was stated by the supporter. Cardiologists are a preferred source for CR information and they and primary care physicians need to increase the amount of positive support they provide to post-coronary event women. Emphasis on the necessity of attending CR as well as solutions for transportation and finances may increase enrollment. More research should be completed on the context of depression related to CR, importance of factors identified as having an impact on CR decision making, and the role of support persons in the enrollment choices of women. / Graduation date: 2002
2

Evaluation of an early discharge service for cardiac rehabilitation at home

Dal-Santo, Mary Gail January 1987 (has links)
This study evaluates the outcomes of a hospital-based cardiac rehabilitation program designed to deliver the first phase of cardiac rehabilitation services at home. The program was established in a community hospital in 1985, operating under the administration of the hospital's Medical Day Centre. Patients suffering from acute myocardial infarction (MI) are referred to the program by their physician and receive services from a cardiac nurse specialist immediately upon discharge. The services continue for a period of 6 weeks. The outcomes of importance in the study are the effects of the program on hospital services in the initial 10 month period and on patient's health related behaviour 3 months post infarction. Results of the study indicate that program goals were achieved during the initial 10 months of the study. Physicians referred 92% of the eligible patients and the average length of stay (ALOS) in hospital was satisfactorily reduced. For patients with uncomplicated MI the ALOS was 8.6 days by the tenth month. At 3 month follow up, patients reported significant improvements over their pre infarction health related behaviour. There were significant increases in the frequency of light exercise (p<-0005), in the regular use of low fat dairy products (p=.0003) and in the practice of restricting calories (p=.003) while significant decreases were reported in the frequency of consuming fried foods (p<.0005), salted foods (p<.0005) and rich foods (p<.005) and in the regular use of table salt (p=.00003). Smoking cessation was reported by 50% of the smokers at follow up. Patients reported a high level of satisfaction with the program, describing the service as well timed, informative, practical and valuable in restoring their self confidence. While these results were satisfactory with regards to the program goals, the evaluation was based on a single group design and further investigation is desirable with comparisons between hospitals and between patients with and without exposure to the program. / Medicine, Faculty of / Population and Public Health (SPPH), School of / Graduate
3

Relational caring in cardiac rehabilitation : how case management service affects clients' recovery and risk factor modification

Rinzema, Sonya Maria Catherine. 10 April 2008 (has links)
No description available.
4

The epidemiology of cardiovascular diseases in the ethnic groups in Singapore

Hughes, Kenneth January 1988 (has links)
No description available.
5

The hydrodynamics of idiopathic hypertrophic subaortic stenosis

Simons, Dianne Margaret 08 1900 (has links)
No description available.
6

SPECT myocardial perfusion scans : a left ventricular defect size estimation algorithm and a three dimensional computer simulation

Boyers, Albert S. 05 1900 (has links)
No description available.
7

A spherical polarcardiograph computer

Poole, Edward Graham January 1955 (has links)
Until recently, the major portion of the study of the electrical activity of the heart has been done with the aid of electrocardiograms and vectorcardiograms. However, such information as the variation of the magnitude and angle of the heart vector with time is not directly discernible from either of these recordings. A polarcardiograph was developed by W.K.R. Park to present the plane projection of the heart vector in magnitude and angle as a continuous function of time. The polarcardiograph proved to be useful but it was not sufficiently stable. An electronic device which would be stable and at the same-time present the heart vector in three dimensions, magnitude, frontal angle and polar angle as continuous functions of time, would be useful in electrocardiographic research. The design of such a computer, the "spherical polarcardiograph", is described in this thesis. The spherical polarcardiograph, which must compute the spherical polar coordinates of points from their respective Cartesian coordinates, has been developed using analog multipliers, subtracters and adders as well as a two-phase sinusoidal voltage source and a device for generating a voltage proportional to the phase difference of two sinusoidal signals. With the exception of the third coordinate computation and the gated feedback circuitry, the system is similar to that used by Park. Automatic balancing of the circuit occurs for a short interval during the rest period of the heart. The spherical polarcardiograph has not been constructed in final form but tests on the individual units indicate that the instrument will be well within the accuracy required for normal electrocardiographic purposes. / Applied Science, Faculty of / Electrical and Computer Engineering, Department of / Graduate
8

Homocystinuria and hyperhomocysteinaemia in the Western Cape

Human, Lucille January 2002 (has links)
Thesis (DTech (Biomedical Technology)) -- Cape Technikon, 2002 / Research into the role of homocyst(e)ine in cellular functions was stimulated by homocystinuria, a severe autosomal recessive disorder caused by, in the classic case, deficiency of cystathionine β-synthase. Patients with homocystinuria have plasma homocyst(e)ine levels ten times that of reference values. This study was initiated with the presentation and investigation of a local family with clinical symptoms typical of that found in patients with homocystinuria. The free plasma homocystine level detected in the index case was 12 times higher and the plasma methionine level was a 1000 times higher than the respective normal reference ranges. The most common cause of homocystinuria worldwide is a defect in the cystathionine β-synthase enzyme. Methodology was developed to measure cystathionine β-synthase activity in fibroblast cultures obtained from skin biopsies from the extended family. A radioactive method followed by separation of the amino acids on an amino acid analyzer was used. Both the symptomatic siblings had cystathionine β-synthase enzyme activities <1% of the reference value, which was similar to activities found in known homozygotes for cystathionine β-synthase deficiency. Cystathionine β-synthase enzyme activity in the asymptomatic mother was in the lower half of the reference range while the father had cystathionine β-synthase enzyme activity well below the reference range at less than 10% of activity found in healthy individuals. On the basis of clinical symptoms and above parameters, homocystinuria due to cystathionine β-synthase deficiency was onfirmed.
9

Echocardiography for early detection of heart disease in high risk diabetic patients

Hartnick, Maria Diana January 2015 (has links)
Masters of Technology: Radiography in the Faculty of Health and Wellness Sciences at the Cape Peninsula University of Technology 2015 / Introduction: Diabetes mellitus is a chronic disease with a significant impact on personal lifestyle and wellbeing. It is associated with a high prevalence of myocardial disease, the early detection of which is important for prevention of disease progression. Although echocardiography is recognised as a leading cardiovascular imaging modality, there has been limited work on its role in the early detection of diabetes-related myocardial dysfunction. The aim of this study was therefore to evaluate the role of echocardiography in the early detection of diabetes-related myocardial disease, in a population with a high prevalence of type 2 diabetes mellitus. Methodology: A single sonographer, blinded to individual biochemical markers conducted detailed echocardiographic examinations on 407 participants from a Cape Town community with a high prevalence of diabetes mellitus. Participants were subsequently stratified by biochemical status, as normoglyceamia or hyperglycaemia. The echocardiographic features of the two groups were compared using the Pearson chi-squared and Mann-Whitney U tests. Findings: Hyperglycaemia was associated with left atrium (LA) enlargement (p ˂ 0.0014), aortic enlargement (p ˂ 0.0067) and inter-ventricular septal (IVS) thickening (p ˂ 0.0001). Conclusion: The findings suggest that echocardiography can be a useful screening tool for myocardial dysfunction in Type 2 diabetes mellitus.
10

A comparison of cardiac rehabilitation versus standard care in elderly patients with heart failure

Austin, Jacky January 2003 (has links)
Heart failure, a condition predominantly affecting the elderly, represents an ever increasing clinical and financial burden for the NHS. Patients with symptomatic heart failure have a poor prognosis and a high degree of morbidity. Current research findings suggest that enhancement of self-care through education, optimisation of pharmacological therapy, exercise training, lifestyle modification and counselling improves patient outcomes and reduces hospitalization. Cardiac rehabilitation, a service that incorporates all the aforementioned components, has yet to be evaluated in heart failure management. Set in a district general hospital with a primary catchment area of 500,000 inhabitants, this study is among the first of its type in the U.K. The study evaluates the effects of a cardiac rehabilitation programme on a range of outcome measures: mortality, health related quality of life, functional change, health care utilisation and clinical status. The design is a randomised controlled trial, comparing cardiac rehabilitation to standard care. Two hundred patients (60 - 89 years, 66% male) were recruited from hospital clinics, wards, and general practice. Patients with NYHAII or in heart failure confirmed, by echocardiography, were randomly allocated to control or experimental groups. Both patient groups attended out patient appointments to see the specialist nurse and cardiologist every eight weeks. In addition, patients in the experimental group attended cardiac rehabilitation classes twice weekly for eight weeks, followed by weekly exercise sessions for 16 weeks. Intervention consisted of exercise prescription, education, dietetics, occupational therapy and psychosocial counselling. A selection of measures were used to collect data over six months: Minnesota Living with Heart Failure (MLHF), New York Heart Association (NYHA) functional classification, EuroQol (EQ-5D), the six-minute walk test, Borg's rating of perceived exertion (RPE), medication compliance monitored by ACE inhibition, routine biochemisty, prescribed medication, coronary risk factor status, medical records and patient diaries. Results show statistically significant improvements for the experimental group in comparison to control patients. Improvements were identified in health related quality of life, functional status, metrs walked and patient cost utility; a reduction in hospital admissions attributable to heart disease was evident. No statistical difference between patient groups was evident in mortality, contact with primary health care professionals, compliance and clinical status. The findings are discussed in terms of previous rehabilitation studies. In conclusion, this study describes the necessary infrastructure and provides an evidence base for implementing a successful multidisciplinary cardiac rehabilitation programme in a district general hospital.

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