2024-03-28T09:09:24Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00014156
2023-11-16T06:23:23Z
499:508:509:1376
PATHOLOGICAL CHANGES OF FINGER AND TOE IN PATIENTS WITH VIBRATION SYNDROME
HASHIGUCHI, TOSHINORI
YANAGI, HIDETAKA
KINUGAWA, YOSHITAKA
SAKAKIBARA, HISATAKA
YAMADA, SHIN'YA
open access
Vibration syndrome
Finger
Toe
Pathological change
Medial muscle layer
Perivascular fibrosis
Pathological findings of the fingers and toes were studied in finger and toe skin specimens from 21 male patients with vibration syndrome and 13 referent male cadavers. Thickening of the medial muscle layer of small arteries or arterioles, and increase of collagen fibers in the connective tissues, especially in perivascular regions, were noted in not only the finger but also the toe in patients with vibration syndrome. The ratio of the media/external diameter in the finger and toe was significantly greater in the patients than in the referencts, even in the patients who had operated chain saws, bush cutters or grinders and had not been exposed to vibration of the foot directly. And the ratio in the finger was approximately parallel with that in the toe in the same subject. The present findings pathohistologically confirmed the existence of circulatory disturbances in the feet as well as the hands. The medial thickening of arteries and perivascular fibrosis in the toe can result from not only direct vibration exposure of the foot, but also long-term repeated vasoconstriction and circulatory disturbances in the foot through the activation of the sympathetic nerve system caused by hand-arm vibration.
Nagoya University School of Medicine
1994-05
eng
departmental bulletin paper
VoR
https://doi.org/10.18999/nagjms.57.suppl.129
http://hdl.handle.net/2237/16061
https://nagoya.repo.nii.ac.jp/records/14156
10.18999/nagjms.57.suppl.129
http://www.med.nagoya-u.ac.jp/medlib/nagoya_j_med_sci/57suppl/57suppl.html
2186-3326
0027-7622
Nagoya Journal of Medical Science
57
suppl
129
136
https://nagoya.repo.nii.ac.jp/record/14156/files/v57supp129_136.pdf
application/pdf
1.4 MB
2018-02-20