Donald J Mertens

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BACKGROUND Predicting the risk of cardiac and all-cause death in patients with established coronary heart disease is important in counseling the individual and designing risk-stratified rehabilitation and secondary prevention programs. Cox proportional hazards and Kaplan-Meier survival curves were thus completed on initial assessment data obtained from(More)
We have tested the feasibility and effectiveness of a 2 year (average 16 +/- 7 months) walk/jog exercise program on 36 male orthotopic cardiac transplant patients (21 to 57 years old) seen initially 2 to 23 months after surgery. Comparison of initial exercise test results with those in 45 age-matched normal men showed the patients to have a lesser lean body(More)
Perfusion CT can provide information regarding blood perfusion and permeability in (tumor) tissues in a non-invasive manner. In this study, values of CT perfusion parameters in several pancreas pathologies were determined and compared to a control population. Dynamic 128-slice perfusion CT was performed in patients admitted to the radiology department(More)
OBJECTIVE Heart rate provides a poor guide to exercise prescription after cardiac transplantation. This study explores whether the rating of perceived exertion (RPE) provides useful alternative information. METHODS Borg's original categoric scale was applied to 36 male patients [T, age 47(SD 9 years] as they performed a progressive cycle ergometer test an(More)
Information is limited on the influence of a change in fitness and/or physical activity on mortality in cardiac patients who undergo exercise rehabilitation. This was studied in 6,956 men (4,713 with myocardial infarctions, 2,243 who underwent coronary bypass surgery) completing a 12-month walking-based training regimen and followed for a median of 9 years(More)
PURPOSE To retrospectively identify factors influencing long-term compliance to home-based resistance training (RT) in a cardiac rehabilitation (CR) programme. METHODS Five hundred and eighteen patients (447 males, 71 females) attending a CR programme consisting of aerobic exercise, education and lifestyle counselling were also offered RT exercises, which(More)
Exercise prescription has traditionally been based on the heart rate/work rate relationship. Many post-myocardial (MI) patients are now taking medications such as beta-blockers that alter this relationship, necessitating an alternative method for exercise prescription. The directly measured maximal oxygen intake (VO2max) is not substantially affected by(More)
OBJECTIVE To examine the long-term benefits and safety of aerobic training in patients with chronic heart failure. DESIGN Non-randomised control trial with 52 weeks follow up. SETTING Outpatient cardiac rehabilitation referral centre. PATIENTS Patients with compensated chronic heart failure (mean (SD) age 62 (6) years, New York Heart Association stage(More)
OBJECTIVES This study investigated the prognostic importance of measured peak oxygen intake (VO(2peak)) in women with known coronary heart disease referred for outpatient cardiac rehabilitation. BACKGROUND Exercise capacity is a powerful predictor of prognosis in men with known or suspected coronary disease. Similar findings are described in women, but(More)
BACKGROUND To examine the effects of a 12-month daily walking program without dietary restriction on the metabolic rate, body composition and blood lipid profile of overweight and moderately obese patients following myocardial infarction. METHODS DESIGN longitudinal training (preliminary study). SETTING out-patient cardiac rehabilitation program. (More)