Laryngoscope investigative otolaryngology · 2017
Salivary fistula: Blue dye testing as part of an algorithm for early diagnosis.
СтатьяНазвание и аннотация: Перевод в очереди
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Kiong Kimberley L, Tan Ngian Chye, Skanthakumar Thakshayeni, Teo Constance E H, Soo Khee Chee, Tan Hiang Khoon, Roche Elizabeth, Yee Kaisin, Iyer N Gopalakrishna
Аннотация
OBJECTIVE: Orocutaneous and pharyngocutaneous fistula (OPCF) is a debilitating complication of head and neck surgery for squamous cell carcinoma (SCC), resulting in delayed adjuvant treatment and prolonged hospitalization. As yet, there is no established test that can help in prompt and accurate diagnosis of OPCF. This study aims to determine the accuracy of bedside blue dye testing and its role as part of an algorithm for early diagnosis. We also analyze the risk factors predisposing to OPCF.
STUDY DESIGN: Retrospective cohort study from 2012 to 2014.
METHODS: Patients with head and neck SCC who underwent major resection and reconstruction, at risk of OPCF, were included. Results of blue-dye and video-fluoroscopic swallow-studies (VFSS) testing for OPCF were recorded. For the patients that were noted to develop OPCF, the length of time to diagnosis of fistula and subsequent mode of management were examined.
RESULTS: Of the 93 patients in this study, 25 (26.9%) developed OPCF. Advanced T-classification (T3/T4) was the only significant predisposing risk factor (p = 0.013). The sensitivity and specificity of the bedside blue dye testing was found to be 36.4% and 100%, respectively. The test positive patients were diagnosed with OPCF at a median of postoperative day (POD) 9.5 as compared to POD 13 for the test negative patients (p = 0.001). Early diagnosis was associated with faster fistula resolution with treatment.
CONCLUSION: Blue dye testing is a simple bedside test that can assist in the early diagnosis of OPCF in patients, allowing treatment to be instituted earlier with improved outcomes.
LEVEL OF EVIDENCE: 3.
STUDY DESIGN: Retrospective cohort study from 2012 to 2014.
METHODS: Patients with head and neck SCC who underwent major resection and reconstruction, at risk of OPCF, were included. Results of blue-dye and video-fluoroscopic swallow-studies (VFSS) testing for OPCF were recorded. For the patients that were noted to develop OPCF, the length of time to diagnosis of fistula and subsequent mode of management were examined.
RESULTS: Of the 93 patients in this study, 25 (26.9%) developed OPCF. Advanced T-classification (T3/T4) was the only significant predisposing risk factor (p = 0.013). The sensitivity and specificity of the bedside blue dye testing was found to be 36.4% and 100%, respectively. The test positive patients were diagnosed with OPCF at a median of postoperative day (POD) 9.5 as compared to POD 13 for the test negative patients (p = 0.001). Early diagnosis was associated with faster fistula resolution with treatment.
CONCLUSION: Blue dye testing is a simple bedside test that can assist in the early diagnosis of OPCF in patients, allowing treatment to be instituted earlier with improved outcomes.
LEVEL OF EVIDENCE: 3.