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Biomedical subjects

B Thomasson

Publications and source records attributed to B Thomasson.

At least 19 recordsLinked to original sources

Liver resection with the Sonocut ultrasonic knife.

Previous reports and our findings suggest that resection by ultrasound is of appreciable merit in liver surgery. Blood can be saved and bile leakage diminished as the larger vessels and bile ducts can be skeletonized unharmed, whereas the dissector selectively carries away the parenchyma. Otherwise virtually inaccessible tumours can be approached. The ultrasonic dissector/aspirator does not harm the tissue in depth beyond the resection surface and thus not much devitalized tissue is left in the wound.

Animals

Blunt abdominal trauma and hollow viscus injury in children: the diagnostic value of plain radiography.

Although blunt abdominal trauma is common in children, the G-I tract is involved only rarely. However, this paper deals with a series of 24 cases in whom a hollow viscus was injured. We present the radiological and operative findings as well as the results of subsequent radiological workup in patients who had no surgery. Contrary to the recent trend which stresses early abdominal CT as critically important for guiding treatment we have retained a more conservative attitude. Our present protocol includes plain radiography frequently combined with sonographic screening of the abdomen. In patients with stable vital signs and when necessary, we follow up with scintigraphy. CT is reserved for complicated cases with obscure clinical manifestations which do not fit the plain radiological findings and also cases running an unexpected course.

Abdominal Injuries

Pulmonary aeration after unilateral fetal ligation of pulmonary artery in neonatal rabbits.

When the pulmonary artery was ligated at the gestational age of 30 days, 9 out of the 17 rabbit fetuses had vital lungs and in 7 of these the lungs were aerated after breathing for 15 min to 1 h. Ligation before this gestational age caused necrotic lungs in all 13 rabbit fetuses. On the basis of this we can conclude that the bronchial circulation is not sufficient to ensure vitality of the fetal lung and the pulmonary circulation does not play a major role in the primary aeration of the lungs at birth.

Animals

Ectopic ureterocele in the male infant.

An account is given of a series of ectopic ureterocele present in 14 male infants. The malformation is found to be more complex than in the female. The ipsilateral renal function is severely impaired or abolished and obstruction to the bladder outflow common. Associated dilatation and elongation of the posterior urethra during micturition may result in a valvelike appearance. Eversion of the male ureterocele is common and possible mechanisms to account for this event are discussed.

Child

Foetal connective tissue regeneration. A biochemical study in rabbits.

Foetal connective tissue regeneration was studied by implanting 3 x 10 mm cylindrical viscose cellulose sponges subcutaneously in foetal, newborn, and full-grown rabbits. The implants were removed 2 to 7 days later, the foetal implants all being removed after delivery, and were analysed biochemically. In foetal implants a rapid accumulation of soluble forms of collagen took place, while the relative amount of other tissue proteins remained rather low. Connective tissue regeneration of the newborns ressembled, in this respect, that of the full-growns. The results suggest an enhanced production of miniature type collagen in the context of foetal connective tissue regeneration.

Animals

[Appendicitis].

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Age Factors