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Biomedical subjects

W J KUZMAN

Publications and source records attributed to W J KUZMAN.

9 recordsLinked to original sources

Direct left ventricular puncture.

Left ventricular puncture with ventriculography was carried out in 150 cases over the past four years as an adjunct to cardiac catheterization. It proved to be a safe method of obtaining data on abnormalities of the heart. In addition, it permitted excellent visualization of the thoracic aorta and brachiocephalic vessels. Inserting the needle at the subxiphoid and directing it through the apex of the right ventricle, into the septum and then the left ventricle lessened the hazard of injury to the left coronary artery or of entering the pleural cavity that is associated with direct apical puncture. Complications and failures were few.

Angiocardiography↗

The work potential in persons with heart disease.

Data relevant to the decision-making processes of the professional team which comprises the Work Classification Unit of the San Diego County Heart Association were reviewed. The purpose of the unit is to assess the work potential in patients with heart disease. Intercorrelations between a number of physical and psychosocial assessments were noted, with particular attention to the way in which the assessments correlated with the appraisal of the return-to-work potential of the patients.Findings indicated quite clearly that the team employed other than just physical health measures in estimating work potential. Adjustment to the cardiac condition and certain estimates of the home and social environs were used to a significant degree.

Adaptation, Psychological↗

Cigarette smoke; its effect on pulmonary function measurements.

Inhaling cigarette smoke with each breath, with the subject at rest, by use of a smoking device that brought more smoke into the lungs than would be the case in ordinary smoking, produced consistent significant decreases in arterial blood oxygen saturation and in arterial pO(2) in most subjects who had severe or very severe pulmonary emphysema. In normal subjects and in those with a moderate degree of emphysema no significant changes in blood gas exchange resulted. No consistent significant changes in blood gas exchange were noted after the smoking of two cigarettes, either with the subject at rest or after a one-minute step-up exercise.A decrease in oxygen uptake occurred when treadmill exercise was done after smoking two cigarettes, and the ventilation volume was also decreased, probably accounting for part of the oxygen decrease. Pulmonary compliance measurements after smoking one cigarette were consistently and significantly decreased in most subjects-normal as well as those with pulmonary emphysema. The elastic work of breathing was increased in the majority of cases. In two cases in which studies were done after the subjects stopped smoking, one for three months and one for two years, significant reductions in residual air were noted. The results indicated that persons with severe or very severe emphysema would be better off to stop smoking.

Cell Respiration↗