[Different course of myocardial infarction in old age]. / Odmiennosc przebiegu zawalu serca u ludzi w wieku podeszlym.

For the assessment of the peculiarities of acute myocardial infarction in patients aged over 60 years 100 patients with this disease treated at the Department of Internal and Occupational Diseases, Silesian Medical Academy were compared with 100 patients aged below 60 years. The location of myocardial infarction was similar in both groups. In the younger group premature ventricular beats were more frequent while in the older group supraventricular or ventricular tachycardia and left bundle branch block were more frequent. The death rate was much higher in the older group.

[Effect of work in the coke-producing plant on the circulatory system of workers]. / Wplyw pracy przy produkcji koksu na uklad krazenia zatrudnionych pracowników.

253 coke ++ plant workers employed for over 5 years were subject to examination. From among them 207 were exposed to very high concentrations of benzo-a-pyrene (BaP) and tar substances as well as to benzene, its homologues and carbon monoxide. However, none of these concentrations exceeded MAC value. Apart from routine medical examinations resting ECG was made and when necessary propranolol test, exercise test or even coronarography. In addition, polycardiographic and ultrasonocardiographic examinations were carried out. Comparing the results obtained in the group exposed with the controls it was found that arterial hypertension, coronary insufficiency and pathologic polycardiograms were more prevalent in the workers exposed. Chronic exposure to CO, BaP and smoking habit were considered to be factors exerting a deteriorating effect on cardiac muscle.

[Effect of occupational exposure to lead, zinc and cadmium on various indicators of the circulatory system of metallurgical workers]. / Wplyw olowiu wystepujacego na stanowisku pracy wspólnie z cynkiem i kadmem na niektóre wskazniki ukladu krazenia u pracowników przemyslu metalurgicznego.

386 workers occupationally exposed to Pb, Cd and Zn in metallurgical plants were examined to evaluate the influence of lead, cadmium and zinc on circulatory system. The workers were divided into groups according to age and degree of poisoning with metals. Control group included 325 persons, selected according to age, occupationally unexposed to metals. All groups of persons were subject to medical examinations including ECG. Significantly higher prevalence of systolic murmur and heart ventricles repolarization disorders was found in the group exposed irrespective of the age of particular individuals. The workers exposed aged up to 40 years develop more frequently arterial hypertension and heart rhythm disorders. The results obtained indicate that Pb, Cd and Zn adversely affect the circulatory system.

[Long-term oxygen therapy of chronic pulmonary heart disease]. / Dlugotrwala tlenoterapia w przewleklym sercu plucnym.

Pulmonary artery pressure was measured in 70 patients with chronic bronchitis. Those with pulmonary hypertension underwent two hours oxygen therapy (flow 10-12 l/min). Those in whom a decrease of pulmonary artery pressure was observed were qualified for long term oxygen therapy (LTOT). In 32 patients which were qualified for LTOT, after a two week period of 18 hour per day oxygen therapy a decrease of systolic pulmonary arterial pressure from 336.1 mm Hg to 30.9 mm Hg and a decrease of mean pulmonary artery pressure from 25.9 to 23.2 mm Hg was observed.

[Health status of workers of polyvinyl chloride processing plants. II. Results of various biochemical studies]. / Ocena stanu zdrowia pracowników zatrudnionych w przetwórstwie polichlorku winylu (PCW). II. Wyniki niektórych badan biochemicznych.

In 255 workers of two PVC processing plants no changes have been found in routine laboratory tests. No deviations have been found in blood serum, bilirubin, cholesterol, creatinine, nitric residue of urea, calcium and phosphorus, either. Similarly, the activity of acid phosphatase and gammaglutamylotranspeptidase was not changed. In most examined groups a slight statistically significant increase in ALAT activity has been found, in others--increase in the activity of AspAT and basic phosphatase. Workers exposed to lead did not exhibit any laboratory plumbism symptoms. On the other hand, a significant decrease in the activity of erythrocytes deltaaminolevulinic acid dehydratase has been found. The studies suggest that workers processing PVC most probably exhibit slight toxic liver lesion.

[Health status of the workers of a polyvinyl chloride (PVC) processing plant. III. State of the respiratory tract, immunoglobulins and NBT test]. / Ocena stanu zdrowia pracowników zatrudnionych w przetwórstwie polichlorku winylu (PCW). III. Stan ukladu oddechowego, immunoglobuliny, Test NBT.

255 workers processing polyvinyl chloride were examined. All of them underwent spirometric and polycardiographic tests and determination of phagocytic activity of granulocytes, the level of serum albumins and its fractions, and the level of immunoglobulins--IgA, IgG and IgM. The results were compared with the data from healthy non-exposed subjects. It was found that hazards resulting from polyvinyl chloride processing induce slight disturbances in lungs ventilating capacity and inhibit phagocytic activity of granulocytes.

[Health status of workers in polyvinyl chloride processing plants. I. Evaluation of occupational exposure. Subjective and capillaroscopy studies. Conduction velocity in the motor nerves]. / Ocena stanu zdrowia pracowników zatrudnionych w zakladach Przetwórstwa polichlorku winylu (PCW). I. Ocena stanowiska pracy. Badania Przedmiotowe, badania kapilaroskopowe. Szybkosc przewodzenia w nerwach ruchowych.

The examinations covered 255 workers of two polyvinyl chloride processing plants. All workers were subject to general medical examinations including electrocardiography. In a part of workers employed in the plant located in the Katowice Voivodeship, the dermatological tests and neurological examinations including testing the velocity of conduction in motor nerves were carried out and the selected group was subject also to capillaroscopy and dermatothermometry. In the examined workers no "vinyl chloride disease" was found; capillaroscopy and neurological examinations did not reveal any evident changes. However, some dermatoses, most frequently of allergic type, were often encountered.