Occup Environ Med

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Occupational and Environmental Medicine 2008;65:428
Copyright © 2008 by the BMJ Publishing Group Ltd.
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POSTSCRIPT

Letters

What can be learned from the Japanese study of mobile phone use and acoustic neuroma?

M Kundi

Correspondence to:
Michael Kundi, Institute of Environmental Health, Center for Public Health, Kinderspitalgasse 15, A-1095 Vienna, Austria; michael.kundi@meduniwien.ac.at

The first 150 words of the full text of this article appear below.

The Japanese case–control study of acoustic neuroma and mobile phone use by Takebayashi et al (Occup Environ Med 2006; 63:802–7)although thoroughly conducted and analysed still has some important limitations. Acoustic neuromas have long latencies.1 2 The results of 16 studies published between 1985 and 20003 demonstrated tumour growth in 48–70% of patients, stable tumour volumes in 27–50% and involution in 2–10%. The reasons for the diverse patterns of schwannoma growth are largely unknown. If exposure to microwaves from mobile phones influences growth rate, this might result in (1) restart of growth in stable tumours, (2) increased growth rate in growing tumours and (3) inhibition of involution. In patients exhibiting tumour growth, average volume doubling times of about 2 years were found.4 Furthermore, many patients have a long history of various symptoms that could be related to mobile phone use and the intensity of use as well as the side . . . [Full text of this article]


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Authors' reply
T Takebayashi, S Akiba, Y Kikuchi, M Taki, K Wake, S Watanabe, and N Yamaguchi
Occup. Environ. Med. 2008 65: 428. [Extract] [Full Text] [PDF]





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