Vibration-induced white finger among selected underground rock drillers in British Columbia.

Brubaker, Robert L.; MacKenzie, Cameron; Hutton, Stanley G.

doi:10.5271/sjweh.2149

Cited by 33 publications

(18 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, Petersen et al (1995) mentioned that younger workers were at a disadvantage. Regarding smoking habits, some studies (Ekenvall and Lindblad 1989;Petersen et al 1995) demonstrated a positive relationship to VWF, while others (Brubaker et al 1986;Futatsuka and Sakurai 1986) indicated no association. As to complications, Petersen et al (1995) reported that vascular diseases had an unfavorable effect on the course of VWF, but Futatsuka and Sakurai (1986) found no such effect.…”

Section: Discussionmentioning

confidence: 94%

Longitudinal study on factors related to the course of vibration-induced white finger

Ogasawara

Sakakibara

Kondo

et al. 1997

International Archives of Occupational and Environmental Health

View full text Add to dashboard Cite

Follow-up surveys were conducted in 1982 and 1988 to investigate factors affecting the course of vibration-induced white finger (VWF). Subjects were 353 patients, aged 40 to 70 at the start of the 1982 survey, who were receiving treatment for hand-arm vibration syndrome. Between 1982 and 1988, the attacks of VWF decreased, while numbness and pain in the hand changed slightly. Finger skin temperature showed a tendency to increase, but recovery time in nail compression tests was unchanged. Vibration perception threshold and grasping power tended to become worse. Of the 177 patients with VWF in 1982, 55 (31%) had no VWF in 1988. The improvement in VWF depended on its severity assessed by the frequency of attacks, the extent of the affected finger phalanges and the Stockholm vascular (V) stage at the start of the 1982 survey. The improvement was observed in 46% of the 1V (mild) stage cases, against only 17% of the 3V (severe) stage cases. Patients in the 2V (moderate) and 3V stages had lower finger skin temperature than those without VWF (the 0V stage). Patients with milder VWF seemed more likely to improve. Continued use of vibratory tools was found to be an unfavourable factor for improvement of VWF. Age, smoking and drinking habits, and medical complications showed no significant effects on the course of VWF.

show abstract

Section: Discussionmentioning

confidence: 94%

Longitudinal study on factors related to the course of vibration-induced white finger

Ogasawara

Sakakibara

Kondo

et al. 1997

International Archives of Occupational and Environmental Health

View full text Add to dashboard Cite

show abstract

“…As already noted, these requirements severely restrict the number of studies that qualify for the analysis. There are only nine studies involving two types of power tools that, together, fulfil the requirements and from which sufficient epidemiologic data and acceleration spectra can be derived to lend credibility to the analysis 2,4,[42][43][44][45][46][47] . The epidemiologic data from these studies are summarized in Table 1, and involved either miners operating rock drills or forest workers harvesting trees with chain saws.…”

Section: Upper Cut-off Frequency For the Primary Frequency Rangementioning

confidence: 99%

Frequency Weighting for Vibration-induced White Finger Compatible with Exposure-response Models

Brammer

Pitts

2012

Ind Health

View full text Add to dashboard Cite

An analysis has been performed to derive a frequency weighting for the development of vibration-induced white finger (VWF). It employs a model to compare health risks for pairs of population groups that are selected to have similar health outcomes from operating power tools or machines with markedly different acceleration spectra (rock drills, chain saws, pavement breakers and motorcycles). The model defines the Relative Risk, RR f(trial) , which is constructed from the ratio of daily exposures and includes a trial frequency weighting that is applied to the acceleration spectra. The trial frequency weighting consists of a frequency-independent primary frequency range, and subordinate frequency ranges in which the response to vibration diminishes, with cutoff frequencies that are changed to influence the magnitude of RR f(trial) . The frequency weighting so derived when RR f(trial) = 1 is similar to those obtained by other methods (W hf , W hT ). It consists of a frequency independent range from about 25 Hz to 500 Hz (-3 dB frequencies), with an amplitude cut-off rate of 12 dB/octave below 25 Hz and above 500 Hz. The range is compatible with studies of vasoconstriction in persons with VWF. The results provide further evidence that the ISO frequency weighting may be inappropriate for assessing the risk of developing VWF.

show abstract

“…In the investigation undertaken by Suizu and Harada, the ISO 14835-1 test method with measurement of FST by thermistors was found repeatable 20) . The reported sensitivity and specificity from several studies involving thermometry 10,[21][22][23][24][25][26][27][28][29] and thermography [29][30][31] with a cold water immersion test in distinguishing VWF patients from controls are presented in Table 2, which indicates that the diagnostic ability of FST measurements with cold provocation is inconsistent. In the study of Coughlin et al, the researchers investigated the potential of cold provocation thermography with a water temperature of 5°C for 1 min as an objective test to diagnose the digital vasospasm in HAVS patients 31) .…”

Section: Thermometry and Thermographymentioning

confidence: 99%

Review of Different Quantification Methods for the Diagnosis of Digital Vascular Abnormalities in Hand‐arm Vibration Syndrome

Mahbub

Harada

2011

Journal of Occupational Health

View full text Add to dashboard Cite

This study was undertaken to review the diagnostic ability of different quantification methods in the assessment of vibration-induced white finger (VWF), the typical clinical manifestation of vascular injuries in Hand-arm Vibration Syndrome (HAVS). Methods: A literature search of original and major review articles related to the quantification techniques for diagnosing vascular injuries in HAVS was performed. Relevant data from the publications were extracted and included in this study for reporting and discussion. Results: Few studies were available to substantiate the diagnostic techniques using the nail press test and nailfold capillaroscopy. Also, few studies were found to conclusively demonstrate the diagnostic ability using thermometry and thermography incorporated with cold provocation. Some recent reports raised the question regarding the diagnostic ability of finger plethysmography; but by virtue of its comparable assessment parameters and better diagnostic performance, plethysmography appears to be a suitable diagnostic method. In noninvasive quantification of vascular injuries, diagnostic techniques like laser Doppler perfusion imaging and nailfold capillaroscopy require further evaluation in future studies. Conclusions: For a reliable objective diagnosis of VWF at present, quantification of vascular responses using a test battery including established methods like thermometry or thermography and strain gauge plethysmography appears to be useful. (J Occup Health 2011; 53: 241-249)

show abstract

Vibration-induced white finger among selected underground rock drillers in British Columbia.

Abstract: Vibration-induced white finger among selected underground rock drillers in British Columbia. by Brubaker RL, Mackenzie CJ, Hutton SG This article in PubMed: www.ncbi.nlm.nih.gov/pubmed/3490687

Cited by 33 publications

References 0 publications

Longitudinal study on factors related to the course of vibration-induced white finger

Longitudinal study on factors related to the course of vibration-induced white finger

Frequency Weighting for Vibration-induced White Finger Compatible with Exposure-response Models

Review of Different Quantification Methods for the Diagnosis of Digital Vascular Abnormalities in Hand‐arm Vibration Syndrome

Contact Info

Product

Resources

About