Objective: The optimal treatment strategy for oropharyngeal squamous cell carcinoma is highly debated. However, growing evidence supports the use of minimally invasive techniques, such as transoral laser microsurgery (TLM), as a first-line treatment modality for these carcinomas. The purpose of our study was to assess the efficacy and safety of TLM for the treatment of primary and recurrent oropharyngeal carcinomas.
Methods: All patients with oropharyngeal carcinoma undergoing TLM at the QEII Health Sciences Centre in Halifax, Nova Scotia were identified within a prospective database monitoring TLM outcomes. Kaplan-Meier survival analysis was used to evaluate the following end points at 36 months: local control (LC), disease-specific survival (DSS), and disease-free survival (DFS). Safety endpoints included complications following surgery and long term morbidity related to TLM.
Results: Between 2003 and 2014, 39 patients with oropharyngeal carcinoma underwent TLM resection. Twenty-eight (72%) patients had primary carcinoma, nine (23%) were radiation/chemoradiation (RT/CRT) failures, and two (5%) had second primaries following previous RT/CRT. Three patients had stage I disease, 8 stage II, 5 stage III, and 23 stage IV disease. HPV status was available for 26 patients, of which 23 (88%) had HPV positive disease. Kaplan-Meier estimates of 36-month LC, DSS, and DFS for primary oropharyngeal carcinomas were 85.5% (SE 10.6%), 85.7% (SE 13.2%) and 77.7% (SE 12.5%) respectively. Thirty-six-month outcomes for RT/CRT failures were 66.76% (SE 15.7%) for LC and 55.6% (SE 16.6%) for DSS and DFS. Three patients developed complications following surgery.
Conclusions: Observed 36-month efficacy and safety outcomes support the use of TLM for the treatment of primary and recurrent oropharyngeal carcinoma.
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| http://dx.doi.org/10.1186/s40463-015-0093-3 | DOI Listing |
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