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Direct evidence of ...
Direct evidence of active sympathetic vasodilatation in the skin of the human foot
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- Lundberg, Johan (författare)
- Lund University,Lunds universitet,Anestesiologi och intensivvård,Forskargrupper vid Lunds universitet,Anaesthesiology and Intensive Care Medicine,Lund University Research Groups
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- Norgren, Lars (författare)
- Lund University,Lunds universitet,Institutionen för kliniska vetenskaper, Malmö,Medicinska fakulteten,Department of Clinical Sciences, Malmö,Faculty of Medicine
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- Ribbe, Else (författare)
- Lund University,Lunds universitet,Kirurgi, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Surgery (Lund),Section V,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Rosén, Ingmar (författare)
- Lund University,Lunds universitet,Klinisk neurofysiologi,Sektion IV,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Clinical Neurophysiology,Section IV,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Steen, Stig (författare)
- Lund University,Lunds universitet,Thoraxkirurgi,Sektion II,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Thoracic Surgery,Section II,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Thörne, Johan (författare)
- Lund University,Lunds universitet,Kirurgi, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Surgery (Lund),Section V,Department of Clinical Sciences, Lund,Faculty of Medicine
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Wallin, B Gunnar (författare)
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(creator_code:org_t)
- 1989
- 1989
- Engelska.
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Ingår i: Journal of Physiology. - 1469-7793. ; 417, s. 437-446
- Relaterad länk:
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http://www.pubmedcen... (free)
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Abstract
Ämnesord
Stäng
- 1. During operative aorto-femoral vascular reconstructions on sixteen patients, the sympathetic chain was stimulated electrically between the L2 and L4 ganglia while blood flow was monitored by laser doppler flowmeters from the skin on the sole of the foot and the ankle and by an electromagnetic flowmeter from the deep femoral artery. Epidural anaesthesia to at least the T6 level was used which excluded reflex effects. 2. Stimulation (10 Hz) at 1-12 mA current strengths for 30 s evoked both reductions and increases of blood flow in glabrous and hairy skin. Initial short-lasting flow increases (durations 9-19 s) followed by sustained decreases were common: sometimes there were sustained flow increases at low and decreases at high current strengths. 3. In the deep femoral artery (supplying predominantly muscle) only flow reductions were evoked. 4. The results provide evidence for sympathetically mediated vasodilatation in the skin of the human foot whereas leg muscles may be supplied by vasoconstrictor nerves only.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Fysiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Physiology (hsv//eng)
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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