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The assessment of pharyngocutaneous fistula rate in patients treated primarily with definitive radiotherapy followed by salvage surgery of the larynx and hypopharynx.
MedLine Citation:
PMID:  19544379     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
OBJECTIVES/HYPOTHESIS: To determine whether definitive radiotherapy prior to surgery increases the rate of pharyngocutaneous fistula (PCF) following laryngectomy or hypopharyngectomy and to determine if differences in duration of time between definitive radiotherapy and surgery alters PCF rate. STUDY DESIGN: A retrospective review of 152 patients treated surgically for primary laryngeal or hypopharyngeal squamous cell carcinoma. METHODS: Following previous definitive radiotherapy treatment 38 patients underwent salvage surgery and 114 patients underwent primary surgery with curative intent. The PCF rate was assessed in both groups. RESULTS: The rate of PCF was found to be significantly higher in the salvage surgery group than those undergoing primary surgery (34.2% vs. 15.7%) (P < .05). Fistula rate was also higher in the subgroup that received concurrent chemoradiation to radiotherapy alone (P = .002). The patients who developed PCF in the salvage surgery group had significantly lower median time to surgery (5.8 months) than the nonfistula group (9.8 months) (P = .032). PCF rate was 75% within 4 months of radiotherapy to salvage surgery compared to 25% after 4 months (P = .034). Within 12 months of radiotherapy this percentage was 48% compared to 0% after 12 months (P = .014). The median radiotherapy dose was significantly higher in those whose surgery was complicated by PCF (70 Gy) compared to patients who did not develop a fistula (64 Gy) (P = .001). CONCLUSIONS: Patients undergoing salvage surgery within 12 months, and in particular within 4 months, who have received high dose radiotherapy (>64 Gy) or concurrent chemoradiation are at high risk of developing PCF.
Authors:
Richard Dirven; Brian D Swinson; Kan Gao; Jonathan R Clark
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Laryngoscope     Volume:  119     ISSN:  1531-4995     ISO Abbreviation:  Laryngoscope     Publication Date:  2009 Sep 
Date Detail:
Created Date:  2009-09-02     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8607378     Medline TA:  Laryngoscope     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1691-5     Citation Subset:  IM    
Affiliation:
Sydney Head and Neck Cancer Institute, Sydney Cancer Centre, Royal Prince Alfred Hospital and University of Sydney, Australia. r.dirven@student.ru.nl
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