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Biomedical subjects

S Bygdeman

Publications and source records attributed to S Bygdeman.

At least 55 records · Page 3Linked to original sources
PubMed1980

Do moisture exchangers prevent patient contamination of ventilators? A microbiological study comparing two different humidifying devices.

Fifteen tracheostomized and mechanically ventilated patients in an intensive care unit for surgical patients were studied. Two types of humidifiers were used: the Cascade humidifier and the Servo humidifier. Results from bacteriological cultures of the tracheal exudates, the expiratory and inspiratory ports of the ventilator, and various parts of the Servo humidifier are presented. There was a high incidence of colonization of the trachea of the patients. When the Cascade humidifier was used, a low rate of contamination in the expiratory and inspiratory ports of the ventilator was found, while no such contamination could be demonstrated with the Servo humidifier. There was a great difference in the colonization rate of the three different parts of the Servo humidifier. The part first exposed to the gas from the patient was frequently contaminated whereas the part towards the ventilator was not contaminated et all.

Bacteria↗
PubMed1979

Noninvasive diagnosis of acute deep vein thrombosis. A comparison between thermography, plethysmography and phlebography.

Fifty-five patients with clinical signs of acute DVT were investigated with thermography, plethysmography and phlebography. A comparison between phlebography and thermography showed a diagnostic agreement of 84%. Thermography was found, however, to have a low reliability for the localization of acute thrombi and was therefore combined with plethysmography in an attempt to obtain better results in this respect. Compared to the invasive phlebography, the noninvasive combination of thermography and plethysmography adequately located acute DVT in 95% of the cases.

Acute Disease↗
PubMed1978

Hemolytic streptococci among infants in a maternity department. Report of an outbreak.

Reports of several streptococcal infections among babies after discharge from a maternity department initiated an epidemiologic study. Out of 100 infants in the 3 maternity wards 67% were colonized on the umbilicus with hemolytic streptococci group A. It was assumed that the spread had occurred from infant to infant in connection with the nursing. By means of new and strict hygienic routines, isolation and penicillin treatment of the colonized infants the spread was rapidly brought to an end. A retrospective study among the children delivered up to 6 weeks earlier showed that no less than 64% had had clinical signs of infection of possible streptococcal origin. Infections had also occurred among many family members. The observations emphasize the importance of strict hygienic routines and continuous bacteriologic surveillance in maternity departments, as well as close contact between maternity departments and health centers for children.

Adult↗
PubMed1976

Platelet adhesiveness in myocardial infarction in relation to clinical course.

ADP-induced and whole blood platelet adhesiveness have been studied by repeated measurements during the acute stage of the disease and the following two months in 86 randomly selected patients admitted to a coronary care unit because of acute central chest pain. In the patients who developed ECG and enzyme changes typical of infarction (group 1), platelet adhesiveness was significantly increased on admission compared with the rest of the patients (group 2) and controls (group 3). Patients in groups 1 and 2 showed a secondary increase during the first week, but two months after admission the means had returned to values within the normal range. No correlation was found between platelet adhesiveness and infarction size or fatal outcome of the disease. Platelet adhesiveness did not differ between patients with ECG changes indicating a transmural infarct and those with mainly subendocardial infarction.

Acute Disease↗