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Published in: Supportive Care in Cancer 8/2011

01-08-2011 | Review Article

A systematic review with meta-analysis of the effect of low-level laser therapy (LLLT) in cancer therapy-induced oral mucositis

Authors: Jan Magnus Bjordal, Rene-Jean Bensadoun, Jan Tunèr, Lucio Frigo, Kjersti Gjerde, Rodrigo AB Lopes-Martins

Published in: Supportive Care in Cancer | Issue 8/2011

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Abstract

Purpose

The purpose of this study is to review the effects of low-level laser therapy (LLLT) in the prevention and treatment of cancer therapy-induced oral mucositis (OM).

Methods

A systematic review and meta-analysis of randomised placebo-controlled trials of LLLT performed during chemotherapy or radiation therapy in head and neck cancer patients.

Results

We found 11 randomised placebo-controlled trials with a total of 415 patients; methodological quality was acceptable at 4.10 (SD ± 0.74) on the 5-point Jadad scale. The relative risk (RR) for developing OM was significantly (p = 0.02) reduced after LLLT compared with placebo LLLT (RR = 2.03 (95% CI, 1.11 to 3.69)). This preventive effect of LLLT improved to RR = 2.72 (95% CI, 1.98 to 3.74) when only trials with adequate doses above 1 J were included. For treatment of OM ulcers, the number of days with OM grade 2 or worse was significantly reduced after LLLT to 4.38 (95% CI, 3.35 to 5.40) days less than placebo LLLT. Oral mucositis severity was also reduced after LLLT with a standardised mean difference of 1.33 (95% CI, 0.68 to 1.98) over placebo LLLT. All studies registered possible side-effects, but they were not significantly different from placebo LLLT.

Conclusions

There is consistent evidence from small high-quality studies that red and infrared LLLT can partly prevent development of cancer therapy-induced OM. LLLT also significantly reduced pain, severity and duration of symptoms in patients with cancer therapy-induced OM.
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Metadata
Title
A systematic review with meta-analysis of the effect of low-level laser therapy (LLLT) in cancer therapy-induced oral mucositis
Authors
Jan Magnus Bjordal
Rene-Jean Bensadoun
Jan Tunèr
Lucio Frigo
Kjersti Gjerde
Rodrigo AB Lopes-Martins
Publication date
01-08-2011
Publisher
Springer-Verlag
Published in
Supportive Care in Cancer / Issue 8/2011
Print ISSN: 0941-4355
Electronic ISSN: 1433-7339
DOI
https://doi.org/10.1007/s00520-011-1202-0

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