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Assessing the Association Between Time to Surgery and Survival in Sinonasal Squamous Cell Carcinoma.
Laryngoscope 2023 May 18
INTRODUCTION: To assess the association between time to surgery (TTS) and survival in sinonasal squamous cell carcinoma patients (SSCC).
METHODS: We queried the 2004-2016 National Cancer Database for all cases of adult SSCC undergoing primary surgical treatment. Patients with missing TTS information were excluded. We conducted a multivariate analysis of patient demographic and clinicopathological characteristics' effect on overall survival (OS) using a Cox proportional hazards model enhanced with cubic spline non-linear approximation. Bootstrapping methods were utilized to detect the aggregate risk of TTS delay on patient OS.
RESULTS: A total of 2,881 patients met the inclusion criteria. The majority of patients were male (63.5%), White (86.3%), and over the age of 60 (58.4%). Parametric cubic spline approximation Cox hazard model detected a non-linear association between patient OS and TTS below 30 days with the lowest risk occurring at 18 days and steadily increasing subsequently. To analyze the aggregate risk and identify the optimal TTS cut-off after 30 days of surgical delay, the cohort sample was bootstrapped and dichotomized. The largest increase in aggregated risk was identified at 59 days (Hazards Ratio [HR] = 1.006 [0.839-1.084], p = 0.003). 60 days were used as the optimal TTS cut-off for analyzing the survival rate using the Cox proportional hazard model. Undergoing surgery within 60 days translated to a 14.6% decreased chance of death (HR: 0.854 [0.83-0.96]).
CONCLUSIONS: Increasing TTS is associated with worse overall survival in patients with SSCC. Our study suggests that surgery should be done within 60 days to achieve optimal survival results.
LEVEL OF EVIDENCE: 4 Laryngoscope, 2023.
METHODS: We queried the 2004-2016 National Cancer Database for all cases of adult SSCC undergoing primary surgical treatment. Patients with missing TTS information were excluded. We conducted a multivariate analysis of patient demographic and clinicopathological characteristics' effect on overall survival (OS) using a Cox proportional hazards model enhanced with cubic spline non-linear approximation. Bootstrapping methods were utilized to detect the aggregate risk of TTS delay on patient OS.
RESULTS: A total of 2,881 patients met the inclusion criteria. The majority of patients were male (63.5%), White (86.3%), and over the age of 60 (58.4%). Parametric cubic spline approximation Cox hazard model detected a non-linear association between patient OS and TTS below 30 days with the lowest risk occurring at 18 days and steadily increasing subsequently. To analyze the aggregate risk and identify the optimal TTS cut-off after 30 days of surgical delay, the cohort sample was bootstrapped and dichotomized. The largest increase in aggregated risk was identified at 59 days (Hazards Ratio [HR] = 1.006 [0.839-1.084], p = 0.003). 60 days were used as the optimal TTS cut-off for analyzing the survival rate using the Cox proportional hazard model. Undergoing surgery within 60 days translated to a 14.6% decreased chance of death (HR: 0.854 [0.83-0.96]).
CONCLUSIONS: Increasing TTS is associated with worse overall survival in patients with SSCC. Our study suggests that surgery should be done within 60 days to achieve optimal survival results.
LEVEL OF EVIDENCE: 4 Laryngoscope, 2023.
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