Publications by authors named "Rubler S"

Cilazapril (C), an angiotensin-converting enzyme inhibitor with effective antihypertensive efficacy, was examined for its ability to alter exercise tolerance testing (ETT) and respiratory oxygen uptake in 33 patients with congestive heart failure (CHF). C was administered in capsules daily to patients with New York Heart Association Class II or Class III CHF for 12 weeks, in parallel double-blind treatment groups of 0 mg (n = 8), 0.5 mg (n = 8), 1.

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Arm exercise with myocardial scintigraphy and oxygen consumption determinations was performed by 33 men with peripheral vascular disease, 40 to 74 years of age (group 2). None had evidence of coronary disease. Nineteen age-matched male control subjects (group 1) were also tested to determine the normal endurance and oxygen consumption during arm exercise in their age group and to compare the results with those obtained during a standard treadmill performance.

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Sixty-eight men with diabetes mellitus (mean age 53 +/- 10 years) and no symptoms of cardiac dysfunction enrolled in a long-range study for detection of latent coronary artery disease. The testing included maximal treadmill stress with thallium-201 scintigraphy and echocardiography. Radionuclide angiography was available in 35 men (52%), and 24 (35%) had gated scanning with exercise.

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The heart rate increase induced by dynamic exercise in patients with chronic atrial fibrillation is competitively attenuated by beta-blockade. The influence of oral celiprolol on exercise induced tachycardia was evaluated in 23 patients with chronic stable atrial fibrillation in a dose-titration study. This was succeeded by a placebo-controlled double-blind, crossover multi-center trial.

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This study was conducted with asymptomatic middle-aged male subjects with diabetes mellitus to detect latent cardiac disease using noninvasive techniques. One group of 38 diabetic males (mean age 50.5 +/- 10.

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One hundred fifty-three men (mean age 67.0 +/- 10.0 years) with basal systolic murmurs and aortic valve calcium on the echocardiogram (group II) were studied to assess the relationship between the grade of calcium and severity of aortic valve obstruction.

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The heart rate (HR) variation of 25 normotensive and asymptomatic men, mean age 58 +/- 7 years, with diabetes mellitus (group I) was studied during deep respiration. Thirteen subjects (52%) had a variation of 10 beats/min or less, consistent with an autonomic neuropathy (AN) (group IA); 12 had variation in HR of more than 10 beats/min and were considered to have no neuropathy (group IB). The 24-hour ambulatory HR and systolic blood pressure (BP) values of group I were compared with those of 13 healthy men, mean age 48 +/- 8 years (group II).

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Left ventricular ejection times ( LVETs ) were obtained in a group of 20 control subjects (group 1) during maximal treadmill exercise testing, using a Bruce protocol, and in conjunction with myocardial scintigraphy. Heart rates (HRs) and LVETs were recorded during standing rest, each minute of exercise, and for eight minutes in the postexercise period. A linear regression equation was constructed and separate correction factors of 1.

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Ten female field hockey players were studied to determine if prolonged dynamic conditioning results in an increased left ventricular internal dimension at end diastole (LVIDD) and if this increase correlates with maximal oxygen consumption (VO2max). At peak season, echocardiograms were obtained and VO2max determined during maximal treadmill exercise. VO2max, LVIDD index (LVIDD/body surface area (BSA)), and ventricular septal and posterior wall thickness were compared to agematched nonathletic women.

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Isovolumic relaxation time (IVRT) was determined in 17 controls and 41 patients. Nine patients had ischemic heart disease (IHD), 7 mitral prolapse (MVPS), 13 hypertension (HPB), 7 pregnancy (P), and 5 cardiomyopathy (CM). Echocardiographic measurements of IVRT were made from the aortic second sound to the rapid opening of the mitral valve (A2D1).

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Diastolic and systolic time intervals were measured in 11 control subjects, 11 patients with cardiomyopathy, 7 hyperthyroid patients, and 5 hypothyroid patients. The isovolumic relaxation time (IVRT), rapid filling time (RFT), preejection period (PEP), left ventricular ejection time (LVET), and PEP/LVET ratio were found by simultaneously recording the ECG, phonocardiogram, external carotid pulse, and apexcardiogram. In cardiomyopathy the IVRT and RFT were prolonged (107.

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The cardiovascular response to submaximal bicycle exercise was studied in a group of 19 asymptomatic diabetic patients aged 18 to 39, including 11 males and 8 females and 18 control subjects (9 males and 9 females, aged 20 to 34 years). The maximum heart rate achieved by the control subjects (group I), 175.9 +/- 8.

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The amplitude and duration of P waves in Leads II (P II), P terminal force in V1, (PV1) and the sums of P II and PV1 were compared in 37 subjects with left atrial size obtained by echocardiographic technique in 36 instances and with hemodynamic estimates of pulmonary capillary wedge pressures in 16 cases. The 22 females and 15 males were subdivided into the following groups. Group I, four normal subjects, Group II, 11 patients with predominant aortic insufficiency (two of whom had a mild mitral insufficiency); Group III, 14 patients with mitral valve disease, seven of whom had mitral insufficiency (two with minimal aortic insufficiency) Group IIIa) and seven had mitral stenosis (Group IIIb); Group IV, eight patients with miscellaneous disorders, i.

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