PubMed Health⌕ Search

Biomedical subjects

D Krumhaar

Publications and source records attributed to D Krumhaar.

At least 37 records · Page 2Linked to original sources
PubMed1976

[Aspergillus serum precipitins in patients of a lung clinic].

The incidence and distribution of aspergillosis among patients of a lung clinic in West Berlin were recorded. The immunodiffusion test (IDT) was used on sera of 228 patients seen during one day to test for precipitins against A. fumigatus, A. flavus, and A. niger. Precipitating antibodies specific against A. fumigatus were found in five patients, in two of them A. fumigatus was isolated simultaneously from sputum. In order to obtain a clear view of the clinical occurrence of asperigillosis and its course one requires not only serological tests but also the isolation of Aspergillus in culture from sputum or bronchial secretion. IDT is useful for detecting aspergillosis and for screening persons harbouring Aspergillus in their respiratory tract.

Aspergillosis↗
PubMed1976

[Survival of 51cr-tagged red blood cells in patients with artificial heart valves (author's transl)].

Survival of 51Cr-tagged erythrocytes is determined in 10 patients approximately 1 week after insertion of an artificial heart valve ("early hemolysis") and in 9 patients approximately 2 years after heart valve replacement ("late hemolysis"). Red blood cell survival is found to be significantly reduced in all patients following insertion of an artificial heart valve as compared to a group of control patients. Hemolysis is significantly more pronounced in the early postoperative phase than two years postoperatively. LDH and plasma hemoglobin are relatively good indicators of hemolysis but less reliable than the determination of t/2 Cr.

Adult↗
PubMed1975

[Experimental demonstration of hemogenous growth of various collateral nets in chronic iliac av-fistulas].

A 2 cm long iliac av-fistula is established in 13 dogs. Flow and pressure measurements are performed in the distal fistula artery and the adjacent arteries before and immediately (stage I) as well as 3 months (stage II) and 6 to 12 months (stage III) post shunt. The development of extensive collaterals adjacent to the chronic iliac av-fistula is demonstrated angiographically and by post-mortem vascular casts. After occlusion of the proximal fistula artery a retrograde flow is directed towards the fistula even in the acute stage. This "free" retrograde flow increases from 70 ml/min to 1230 ml/min in stage II and 1755 ml/min in stage III. Collaterals of the tail artery contribute approximately 44%, of the contralateral iliac artery 20% and side branches of the abdominal aorta most of the remaining 36% of the retrograde arterial fistula flow. Successive occlusion of the tail artery and the contralateral iliac artery in stages II and III results in a nearly identical per cent decrease in "free" retrograde flow and in pressure. Even in the pre-fistula stage clamping of the iliac artery induces the same relative pressure-drop in the distal iliac artery. These findings indicate, that the three main collateral networks adjacent to the iliac artery all expand proportionally to their prefistula status in the 6 - 12 months following construction of the iliac av-fistula.

Animals↗