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The Relation between Cutaneous Blood Flow and Cell Content in the Tuberculin Reaction 总被引:2,自引:0,他引:2
J. SWANSON BECK J. H. GIBBS R. C. POTTS EMTITHAL S. JAWAD T. KARDJITO V. A. SPENCE J. M. GRANGE 《Scandinavian journal of immunology》1989,29(1):33-39
The relationship of velocity of blood flow to density and microanatomical distribution of inflammatory cells in the dermis was studied in 20 human tuberculin tests. Most positive reactions showed maximal blood flow velocities (measured as red blood cell (RBC) flux) at the centre of the reaction, but the two most intense responses showed 'central relative slowing' (CRS) with higher RBC flux at the periphery. Two of the four clinically negative reactions showed a considerable acceleration of blood flow, but the other two showed no such acceleration. The packing density of lymphocytes/monocytes in the perivascular zone was greater in the stronger positives than in the weaker reactions. The density of cells in the intervening dermis was markedly lower than in the foci: the lesions with CRS had the highest density of cells in the diffuse infiltrate of the reticular dermis. At the centre of the reaction, blood flow velocity was generally related to density of cellular infiltrate, except in those with CRS, which had a disproportionately lower blood flow velocity. The finding that the circulatory adaptation to a delayed hypersensitivity reaction can be inadequate may explain the dermal acidosis previously observed in intense skin test reactions, and may be the underlying mechanism of necrosis in hypersensitivity reactions. 相似文献
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APPLICATION OF THE DOPPLER ULTRASOUND BLOODFLOW DETECTOR IN SUPRACLAVICULAR BRACHIAL PLEXUS BLOCK 总被引:3,自引:1,他引:2
GRANGE P. DU P. LA; FOSTER P. A.; PRETORIUS L. K. 《British journal of anaesthesia》1978,50(9):965-967
A Doppler ultrasound bloodflow detector was used to localizethe third division of the subclavian artery, rendering the supraclavicularapproach to the brachial plexus safer and highly successful.
* Present address: Launceston General Hospital, Launceston,Tasmania. 相似文献
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目的 探讨B超估计低出生体质量儿体质量的准确性及其受羊水减少的影响程度.方法 230例体质量<2 000 g的新生儿,分娩前1周内B超估计出生体质量,并进行羊水测定,根据羊水指数分组.对照实际出生体质量,评价B超估计体质量的准确性及其受羊水减少的影响程度.结果 估计体质量与实际出生体质量密切相关(P<0.000 1);各组估计体质量与实际出生体质量均无显著差异(P>0.05);各组估计体质量与实际出生体质量的差值也具有相关性(P<0.000 1).结论 B超能对体质量<2 000 g的低出生体质量儿在产前提供一个较为可靠的体质量估计,且不受羊水量减少的影响,具有临床应用价值. 相似文献
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Measurements of arterial oxygen and carbon dioxide tension,alveolar ventilation, alveolar to arterial oxygen difference,and ratio of deadspace to tidal volume have been made to showthe changes induced by ether/air anaesthesia with spontaneousrespiration, with mechanical ventilation, and with mechanicaloverventilation. There was a disproportionate fall in oxygentension during spontaneous respiration with ether/air anaesthesia,and an increased alveolar to arterial oxygen tension difference.The latter was still further increased by both "normal" ventilationand over ventilation. Alveolar ventilation was at all timesadequate for the elimination of carbon dioxide. The ratio ofthe physiological deadspace to the tidal volume was increasedduring anaesthesia only when artificial ventilation was used.The possible causes of these findings are discussed togetherwith their implications for the use of ether/air anaesthesia.
*Work performed during the tenure of an Elmore Research Studentshipat the University of Cambridge Postgraduate Medical School.Present address: Department of Anesthesia, Hospital of Universityof Pennsylvania, Philadelphia, U.S.A. 相似文献
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Human herpesvirus 6 infection associated with anticonvulsant hypersensitivity syndrome and reactive haemophagocytic syndrome 总被引:1,自引:0,他引:1
V. DESCAMPS F. BOUSCARAT S. LAGLENNE E. ASLANGUL B. VEBER D. DESCAMPS † J-L. SARAUX ‡ M.J. GRANGE § M. GROSSIN ¶ E. NAVRATIL B. CRICKX S. BELAICH 《The British journal of dermatology》1997,137(4):605-608
Viral infections are thought to play a part in some cutaneous drug reactions. Human herpesvirus 6 (HHV6), which is the agent of exanthema subitum (sixth disease), has never been implicated in a drug reaction. We report a patient with severe phenobarbital-induced anticonvulsant hypersensitivity syndrome in whom a fulminant haemophagocytic syndrome was associated with HHV6 infection. We discuss the possible role of HHV6 in this reactive condition. 相似文献
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高玲 《上海交通大学学报(医学版)》2006,26(12):1396-1398
目的探讨B超估计低出生体质量儿体质量的准确性及其受羊水减少的影响程度。方法230例体质量<2 000 g的新生儿,分娩前1周内B超估计出生体质量,并进行羊水测定,根据羊水指数分组。对照实际出生体质量,评价B超估计体质量的准确性及其受羊水减少的影响程度。结果估计体质量与实际出生体质量密切相关(P<0.000 1);各组估计体质量与实际出生体质量均无显著差异(P>0.05);各组估计体质量与实际出生体质量的差值也具有相关性(P<0.000 1)。结论B超能对体质量<2 000 g的低出生体质量儿在产前提供一个较为可靠的体质量估计,且不受羊水量减少的影响,具有临床应用价值。 相似文献