Direct evidence of active sympathetic vasodilatation in the skin of the human foot

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Direct evidence of active sympathetic vasodilatation in the skin of the human foot. / Lundberg, Johan; Norgren, Lars; Ribbe, Else; Rosén, Ingmar; Steen, Stig; Thörne, Johan; Wallin, B Gunnar.

I: Journal of Physiology, Vol. 417, 1989, s. 437-446.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Harvard

Lundberg, J, Norgren, L, Ribbe, E, Rosén, I, Steen, S, Thörne, J & Wallin, BG 1989, 'Direct evidence of active sympathetic vasodilatation in the skin of the human foot', Journal of Physiology, vol. 417, s. 437-446.

APA

Lundberg, J., Norgren, L., Ribbe, E., Rosén, I., Steen, S., Thörne, J., & Wallin, B. G. (1989). Direct evidence of active sympathetic vasodilatation in the skin of the human foot. Journal of Physiology, 417, 437-446.

CBE

MLA

Vancouver

Author

Lundberg, Johan ; Norgren, Lars ; Ribbe, Else ; Rosén, Ingmar ; Steen, Stig ; Thörne, Johan ; Wallin, B Gunnar. / Direct evidence of active sympathetic vasodilatation in the skin of the human foot. I: Journal of Physiology. 1989 ; Vol. 417. s. 437-446.

RIS

TY - JOUR

T1 - Direct evidence of active sympathetic vasodilatation in the skin of the human foot

AU - Lundberg, Johan

AU - Norgren, Lars

AU - Ribbe, Else

AU - Rosén, Ingmar

AU - Steen, Stig

AU - Thörne, Johan

AU - Wallin, B Gunnar

N1 - The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Anaesthesiology and Intensive Care (Mö) (013241110), Clinical Neurophysiology (013013001), Surgery (Lund) (013009000), Emergency medicine/Medicine/Surgery (013240200), Thoracic Surgery (013230027)

PY - 1989

Y1 - 1989

N2 - 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.

AB - 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.

M3 - Article

VL - 417

SP - 437

EP - 446

JO - Journal of Physiology

JF - Journal of Physiology

SN - 1469-7793

ER -