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Multicenter Study
. 2013 Mar 19;42(1):22.
doi: 10.1186/1916-0216-42-22.

Treatment of T1b glottic SCC: laser vs. radiation--a Canadian multicenter study

S Mark Taylor  1 , Paul Kerr, Kevin Fung, Mankavil K Aneeshkumar, Derek Wilke, Yida Jiang, John Scott, Judith Phillips, Robert D Hart, Jonathan R B Trites, Matthew H Rigby
Affiliations
Multicenter Study

Treatment of T1b glottic SCC: laser vs. radiation--a Canadian multicenter study

S Mark Taylor et al. J Otolaryngol Head Neck Surg. .

Abstract

Objective: To assess the oncological and functional outcomes of T1b squamous cell carcinoma (SCC) of the glottic larynx treated with laser in comparison with radiation.

Design: A Canadian multicenter cohort study.

Setting: Three tertiary referral centers for head and neck cancer- Dalhousie University in Halifax, Nova Scotia, Western University in London, Ontario and the University of Manitoba, Winnipeg.

Methods: Patients with T1b glottic SCC who underwent transoral laser resection or radiation as the primary modality of treatment.

Outcome measures: Oncological outcomes were evaluated using local control, laryngeal preservation, disease free survival and disease specific survival. Voice outcomes were assessed using the Voice Handicap Index-10 (VHI-10).

Results: 63 patients met study criteria. 21 were treated with laser and 42 with radiation. Oncologic outcomes at 2 years for laser and radiation demonstrated local control of 95% and 85.9%; laryngeal preservation of 100% and 85.9%; disease free survival of 88.7% and 85.9% and overall survival of 94.1% and 94.8% respectively. VHI-10 data was available for 23/63 patients. During the last follow up visit VHI-10 ranged from 0 to 11 (median 6) in the laser group and 0 to 34 (median 7) in the radiation group.

Conclusion: T1b SCC of the glottis can be effectively treated with transoral laser microsurgery with oncological outcomes that are at least equivalent to radiation. For patients with VHI scores, voice quality was similar between the two groups. To our knowledge this is the first study directly comparing the oncologic and voice outcomes with laser and radiation for the treatment of glottic cancer involving the anterior commissure.

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Figures

Figure 1
Figure 1
Local control.
Figure 2
Figure 2
Laryngeal preservation.
Figure 3
Figure 3
Disease free survival.
Figure 4
Figure 4
Overall survival.
See this image and copyright information in PMC

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