Paradoxical response to water immersion in replanted fingers

When the fingers are immersed in water digital blood flow is reduced and the skin wrinkles, suggesting that vasoconstriction plays a role. However, is wrinkling due to sympathetic activation or some intrinsic property of the skin? To define the role of autonomic innervation in skin wrinkling we meas...

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Bibliographic Details
Published in:Clinical autonomic research 2006-06, Vol.16 (3), p.223-227
Main Authors: Hsieh, Ching-Hua, Huang, Kuo-Feng, LiLiang, Po-Chou, Jeng, Seng-Feng, Tsai, Hui-Hong
Format: Article
Language:English
Subjects:
Adult
Amputation
Blood flow
Blood Flow Velocity
Female
Finger
Fingers - blood supply
Fingers - innervation
Fingers - surgery
Humans
Immersion
Immersion - physiopathology
Innervation
Male
Middle Aged
Perfusion
Regional Blood Flow
Replantation
Skin
Skin - blood supply
Skin - innervation
Skin - physiopathology
Skin Temperature
Sodium chloride
Sympathetic Nervous System - physiopathology
Vasoconstriction
Vasodilation
Water - adverse effects
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Summary:When the fingers are immersed in water digital blood flow is reduced and the skin wrinkles, suggesting that vasoconstriction plays a role. However, is wrinkling due to sympathetic activation or some intrinsic property of the skin? To define the role of autonomic innervation in skin wrinkling we measured changes in blood perfusion (Laser Doppler Perfusion Imager) in 20 successfully replanted fingers (mean time after complete amputation 17.5 +/- 5.2 months). We compared responses in replanted fingers with those in corresponding contralateral normal fingers before and immediately after immersion in saline (0.5 mol/l NaCl at 40 degrees C). In the normal fingers, immersion caused a decrease in blood flow by 27.6 +/- 11.5% and skin wrinkling. However, in the replanted fingers blood flow increased by 22.8 +/- 19.6% and the skin did not wrinkle. The paradoxical cutaneous vasodilatation and absence of wrinkling in the denervated fingers suggests that sympathetic innervation is important in water-immersion skin wrinkling.
ISSN:0959-9851
1619-1560
DOI:10.1007/s10286-006-0340-9