Morphologic Classification of Nailfold Capillary Microscopy in Workers Exposed to Hand-arm Vibration
The aim of this study was to investigate the association between the morphologic classification of nailfold capillary microscopy and the clinical and demographic findings in workers exposed to hand-arm vibration. The subjects were 44 male forestry workers (average age; 51.9 ± 14.8 yr). The nailfold...
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Published in | Industrial Health Vol. 49; no. 5; pp. 614 - 618 |
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Main Authors | , , , , , , , , , , |
Format | Journal Article |
Language | English |
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Japan
National Institute of Occupational Safety and Health
2011
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Abstract | The aim of this study was to investigate the association between the morphologic classification of nailfold capillary microscopy and the clinical and demographic findings in workers exposed to hand-arm vibration. The subjects were 44 male forestry workers (average age; 51.9 ± 14.8 yr). The nailfold capillaries (NC) and the mean blood flow velocity were measured on the middle finger of the dominant side by a peripheral capillary observer. The analyses were made using 39 subjects after excluding five subjects who received medication for hypertension. The observed NC were classified into 5 types according to Kusumoto's classification: Type I, n=5; Type II, n=15; Type III, n=8; Type IV, n=5; and Type V, n=6. After excluding the subjects in the Type V, we divided the subjects into two groups: Type I/II group, n=20; and Type III/IV group, n=13. In the Type III/IV group, the operating year of handheld vibrating tools was relatively longer, the mean blood flow velocity was significantly slower, and the body mass index was relatively higher as compared to the Type I/II group. These results suggested that the nailfold capillary microscopy may reflect the effect of the vibration exposure. |
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AbstractList | The aim of this study was to investigate the association between the morphologic classification of nailfold capillary microscopy and the clinical and demographic findings in workers exposed to hand-arm vibration. The subjects were 44 male forestry workers (average age; 51.9 ± 14.8 yr). The nailfold capillaries (NC) and the mean blood flow velocity were measured on the middle finger of the dominant side by a peripheral capillary observer. The analyses were made using 39 subjects after excluding five subjects who received medication for hypertension. The observed NC were classified into 5 types according to Kusumoto's classification: Type I, n=5; Type II, n=15; Type III, n=8; Type IV, n=5; and Type V, n=6. After excluding the subjects in the Type V, we divided the subjects into two groups: Type I/II group, n=20; and Type III/IV group, n=13. In the Type III/IV group, the operating year of handheld vibrating tools was relatively longer, the mean blood flow velocity was significantly slower, and the body mass index was relatively higher as compared to the Type I/II group. These results suggested that the nailfold capillary microscopy may reflect the effect of the vibration exposure. |
Author | TAKEMURA, Shigeki TOMURA, Taro YOSHIMASU, Kouichi YOKOI, Katsushi KURASAWA, Shigeki SAKAGUCHI, Shunji MIYAI, Nobuyuki SHIOZAKI, Maki TERADA, Kazufumi MIYASHITA, Kazuhisa FUKUMOTO, Jin |
Author_xml | – sequence: 1 fullname: SAKAGUCHI, Shunji organization: Department of Hygiene, School of Medicine, Wakayama Medical University – sequence: 2 fullname: MIYAI, Nobuyuki organization: Department of Health and Nursing, School of Medicine, Wakayama Medical University – sequence: 3 fullname: TAKEMURA, Shigeki organization: Department of Hygiene, School of Medicine, Wakayama Medical University – sequence: 4 fullname: FUKUMOTO, Jin organization: Department of Hygiene, School of Medicine, Wakayama Medical University – sequence: 5 fullname: TOMURA, Taro organization: Department of Hygiene, School of Medicine, Wakayama Medical University – sequence: 6 fullname: SHIOZAKI, Maki organization: Department of Hygiene, School of Medicine, Wakayama Medical University – sequence: 7 fullname: KURASAWA, Shigeki organization: Department of Hygiene, School of Medicine, Wakayama Medical University – sequence: 8 fullname: YOKOI, Katsushi organization: Department of Hygiene, School of Medicine, Wakayama Medical University – sequence: 9 fullname: TERADA, Kazufumi organization: Department of Hygiene, School of Medicine, Wakayama Medical University – sequence: 10 fullname: YOSHIMASU, Kouichi organization: Department of Hygiene, School of Medicine, Wakayama Medical University – sequence: 11 fullname: MIYASHITA, Kazuhisa organization: Department of Hygiene, School of Medicine, Wakayama Medical University |
BackLink | https://www.ncbi.nlm.nih.gov/pubmed/21804265$$D View this record in MEDLINE/PubMed |
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CitedBy_id | crossref_primary_10_1136_bmjopen_2016_012983 crossref_primary_10_1016_j_clindermatol_2013_06_018 crossref_primary_10_1016_j_apacoust_2022_108704 crossref_primary_10_1080_15287394_2020_1718043 crossref_primary_10_1186_s40557_014_0027_y |
Cites_doi | 10.1111/j.1475-097X.1984.tb00125.x 10.1007/s004200100272 10.5271/sjweh.2038 10.1093/qjmed/90.8.525 |
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References | 8) Kusumoto H (1975) A morphological study on the capillary vessels of the finger nail bed in subjects with vibration disease. The Journal of the Kurume Medical Association 38, 563-72 (in Japanese). 13) Bollinger A, Fagrell B (1990) Clinical capillaroscopy- A guide to its use in clinical research and practice, 6, Hogrefe & Huber Publishers, Toronto. 16) Labor Standards Bureau, Ministry of Labor, Japan (1975) The promotion of the health care to affect the duties of chainsaw, 610th. Ministry of Labor, Japan, Tokyo. 2) Labor Standards Bureau, Ministry of Labor, Japan (1975) The enforcement procedure of the special health examination concerning the duties of the handheld vibrating tools, 609th. Ministry of Labor, Japan, Tokyo. 5) Gemne G (1994) Pathophysiology of white fingers in workers using hand-held vibrating tools. Nagoya J Med Sci 57(Suppl), 87-97. 7) ISO 14835-2 (2005) Mechanical vibration and shock- cold provocation tests for the assessment of peripheral vascular function- Part 1: Measurement and evaluation of FST. International Organization for Standardization. 10) Kaji H, Bossnev W, Honma H, Saito K, Tsutsui T, Matsuoka M (2004) Capillaroscopy of finger nailfold as a tool for studying peripheral circulatory disorders in hand-arm vibration syndrome. JJOMT 53, 153-60. 9) Gemne G, Pyykko I, Taylor W, Pelmear PL (1987) The Stockholm workshop scale for the classification of cold-induced Raynaud's phenomenon in hand-arm vibration syndrome (revision of Taylor-Pelmear scale). Scand J Work Environ Health 13, 275-8. 15) Litttleford RC, Khan F, Hindley MO, Ho M, Belch JJF (1997) Microvascular abnormalities in patients with vibration white finger. Q J Med 90, 525-9. 14) Nomizo K (1965) Biomicroscopic studies of nailfold capillaries Part 1 studies on normalcy of nailfold capillaries. The Shinshu Medical Journal 14, 315-25 (in Japanese). 1) Labor Standards Bureau, Ministry of Labor, Japan (1975) The authorized criteria of hand-arm vibration, 307th. Ministry of Labor, Japan, Tokyo. 11) Fagrell B, Lundberg G (1984) A simplified evaluation of vital capillary microscopy for predicting skin viability patients with severe arterial insufficiency. Clin Physiol 4, 403-11. 3) Olsen N (2002) Diagnostic aspects of vibration-induced white finger. Int Arch Occup Health 75, 6-13. 6) Honma H, Kaji H, Takagi M, Honda H (2006) Arteriographic findings in HAVS patient. JJOMT 54, 123-8 (in Japanese). 4) Group of hand-arm vibration syndrome, Japan Society for Occupational Health (2008) Report on the criteria of cold water provocation test (12℃, 5-min method). Sangyo Eiseigaku Zasshi 50, A57-66 (in Japanese). 12) Bossnev W, Kaji H, Mishkova E, Daskalov M (1995) Vascular disorders in vibration pathology. Act Med Bulg 22, 78-83. 11 12 13 14 15 16 1 2 3 4 6 7 8 GEMNE G (5) 1994; 57 (9) 1987; 13 10 |
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SubjectTerms | Adult Aged Autonomic nervous system Blood flow Blood Flow Velocity Capillaries - physiopathology Hand-arm vibration syndrome (HAVS) Hand-Arm Vibration Syndrome - physiopathology Humans Male Middle Aged Nailfold capillary microscopy Nails - blood supply Peripheral circulatory dysfunction Socioeconomic Factors |
Title | Morphologic Classification of Nailfold Capillary Microscopy in Workers Exposed to Hand-arm Vibration |
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