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Arterial abnormalities in the hands of workers with vibration white fingers. A magnetic resonance angiography case series

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  • 2021

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Fysisk arbeidsmiljø

Vibration white finger (VWF) is a complication from exposure to hand-arm vibrations. Poor knowledge of the pathophysiology of VWF means that making an accurate prognosis is difficult. Thus, a better understanding of VWF’s pathophysiology is of importance. The purpose of this study was to investigate whether there were arterial abnormalities in the hands in patients with VWF and a positive Allen’s test, using ultrasound and MRA imaging. This was a case series where arterial abnormalities in the hands were investigated in ten participants with VWF and using prolonged Allen’s test (> 5 s). The participants had an average vibration exposure of 22 years and underwent Doppler ultrasound and Magnetic Resonance Angiography (MRA) to check for arterial abnormalities. The participants had VWF classified as 1–3 on the Stockholm workshop scale. Ultrasound and MRA identified vascular abnormalities in all participants, the predominant finding was missing or incomplete superficial arch. Also, stenosis was identified in four participants. This study reveals a high proportion of arterial stenosis and abnormalities in patients with VWF and a prolonged Allen’s test

Vihlborg, Per; Makdoumi, Karim; Gavlovská, Hana; Wikström, Sverre; Graff, Pål
Journal of Occupational Medicine and Toxicology 16(1)
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