Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com

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Δευτέρα 15 Φεβρουαρίου 2021

Clinical Versus Pathologic Laryngeal Cancer Staging and the Impact of Stage Change on Outcomes

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Objectives/Hypothesis

Evaluate the impact and accuracy of clinical laryngeal cancer staging.

Study Design

Retrospective cohort study.

Methods

Two hundred sixty‐five consecutive patients with laryngeal squamous cell carcinoma who underwent total laryngectomy from 2001 to 2017 were studied. Clinical versus pathologic tumor (T) and nodal (N) categories were compared. Logistic regression and Cox proportional hazards analyzed the association of stage change with perioperative factors and outcomes.

Results

Forty‐seven patients (17.7%, accuracy = 0.969 ± 0.010 [standard error]) changed between T1‐2 and T3‐4. Sixty‐four patients (24.1%, accuracy = 0.866 ± 0.020) had inaccurate N category. Salvage patients were less likely to have stage change (downstage: odds ratio [OR] = 0.20, 95% confidence interval [CI]: 0.08‐0.50, P < .001; upstage: OR = 0.41, 95% CI: 0.23‐0.74, P = .003), but more likely to have inaccurate nodal category (39.8% vs. 11.7%, P < .001). Patients with stage change tended to have greater odds of positive/close margins (upstage: OR = 1.78, 95% CI: 0.91‐3.5, P = .092) and chemotherapy (downstage: OR = 2.21, 95% CI: 0.80‐6.14, P = .128; upstage: OR = 1.87, 95% CI: 0.85‐4.11, P = .119). Stage change was associated with recurrence (P = .047) with downstaged patients less likely to recur (hazard ratio = 0.26, 95% CI: 0.08‐0.82, P = .021). Stage change was not associated with positron emission tomography scan, subsite, time to surgery, or mortality.

Conclusions

A third of laryngeal cancer patients were downstaged or upstaged after laryngectomy with 18% and 24% of clinical T and N categories inaccurate, respectively. Stage change was less common for salvage patients and associated with risk of recurrence.

Level of Evidence

3 Laryngoscope, 131:559–565, 2021

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