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‘How does that sound?’: objective and subjective voice outcomes following CO2 laser resection for early glottic cancer

Published online by Cambridge University Press:  03 October 2011

S E Lester ,
M H Rigby ,
M MacLean  and
S M Taylor
S E Lester*
Affiliation:
Division of Otolaryngology-Head and Neck Surgery, Division of Surgery, Dalhousie University, Queen Elizabeth II Health Sciences Centre, Halifax, Nova Scotia, Canada
M H Rigby
Affiliation:
Division of Otolaryngology-Head and Neck Surgery, Division of Surgery, Dalhousie University, Queen Elizabeth II Health Sciences Centre, Halifax, Nova Scotia, Canada
M MacLean
Affiliation:
Division of Otolaryngology-Head and Neck Surgery, Division of Surgery, Dalhousie University, Queen Elizabeth II Health Sciences Centre, Halifax, Nova Scotia, Canada
S M Taylor
Affiliation:
Division of Otolaryngology-Head and Neck Surgery, Division of Surgery, Dalhousie University, Queen Elizabeth II Health Sciences Centre, Halifax, Nova Scotia, Canada
*
Address for correspondence: Mr Shane Lester, Consultant ENT Surgeon, Darlington Memorial Hospital, Darlington, Durham, DL3 6HX E-mail: shanelester@nhs.net
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Abstract

Objective:

To investigate the effect of transoral laser microsurgery for early glottic cancer on subjective and objective vocal outcome measures.

Design:

Prospective cohort study.

Setting:

Tertiary care cancer centre.

Participants:

All patients scheduled for transoral laser microsurgery for untreated early primary glottic cancer over a 22-month period and offered voice assessment (31 patients; 19 tumour stage one, 12 tumour stage two).

Main outcome measures:

Fundamental frequency, maximum phonation time, calculated jitter, shimmer and subjective voice rating, analysed by tumour stage.

Results:

Tumour stage T1 patients had significantly different fundamental frequencies and maximum phonation times at three months post-operatively, compared with pre-operative values; these differences resolved by 12 months. At 12 months, tumour stage T2 patients had significantly shorter maximum phonation times, and all patients reported significantly worse subjective voice ratings, compared with pre-operative values.

Conclusion:

We found no change in fundamental frequency, jitter and shimmer, one year post-operatively. Maximum phonation time deteriorated but stage one patients appeared to compensate, whereas stage two patients did not. Resection size may be a factor. All patients reported significantly worse subjective voice ratings at one year. Aerodynamic and subjective voice measures appear most sensitive to change in this patient group.

Keywords

Laryngeal NeoplasmsCarcinomaLasersTherapeutics
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 125 , Issue 12 , December 2011 , pp. 1251 - 1255
Copyright
Copyright © JLO (1984) Limited 2011

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