Effects of temperature on cutaneous microcirculation in vibration syndrome.
In order to clarify the role of cold on the cutaneous microcirculation in vibration syndrome, groups of rabbits vibrated at 4 degrees and room temperature served as the subjects of this study. A cold provocation test, capillary microscopy, and laser-Doppler flowmetry were used to evaluate the microcirculations of the test rabbits. The results indicated that vibration-induced impairment of the microcirculation was more prominent in the 4 degrees vibration group than in the room temperature group. The severities of the microcirculatory disturbances were dose-effect correlated. Vibration induced not only functional disturbances but also structural destruction of the capillaries. Furthermore cold temperatures enhanced these abnormalities of the blood vessels.
Department of Dermatology, Kaohsiung Medical College, Taiwan, Republic of China.
H S
HS
Yu
S A
SA
Yang
G S
GS
Chen
S T
ST
Ho
D000818:Animals; D002196:Capillaries / Q000503:physiopathology; D003080:Cold Temperature / Q000009:adverse effects*; D008297:Male; D008833:Microcirculation; D011817:Rabbits; D012867:Skin / Q000098:blood supply* / Q000503:physiopathology; D013577:Syndrome; D014732:Vibration / Q000009:adverse effects*