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.
Yu
H S
HS
Department of Dermatology, Kaohsiung Medical College, Taiwan, Republic of China.
Yang
S A
SA
Chen
G S
GS
Ho
S T
ST
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*