The prognostic significance of the 'Worst Pattern of Invasion' in oral cancers-an international collaborative multicentre analysis.
СтатьяМногоцентровое исследованиеНазвание и аннотация: Перевод пока не подготовлен
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Roy Paromita, Weber Margaret Brandwein, Gupta Ruta, Kakkar Aanchal, Fonseca Daphne, Bal Munita, Kamboj Meenakshi, Anand Nidhi, Anila K R, Velusamy Shanthi, Uppin Megha Shantveer, Mitra Suvradeep, Thomas Meera, Elhence Poonam Abhay, Arun Indu, Pasricha Sunil, Husain Nuzhat, Kumar Rekha V, Bal Amanjit, Patil Asawari, Kane Shubhada V, Uppin Shantveer G, Bardia Anand, Sarkar Shivani, Arya Sahithi Shilpa, Kurian Reshma, Chitra R, Pamu Pramod Kumar, Wiedmer Christina, Hiong Lee Jenny Tung, Srivastava Ritu, Gopakumar Akhila, Hubert Low Tsu-Hui, Urken Mark, Liu Jerry, Nair Deepa, Shantappa Rajsekhar, Tandon Sarthak, Thomas Shaji, Thomas Cessal, Vishnoi Jeevan Ram, Manikantan Kapila, Arun Pattatheyil, Chatterjee Sanjoy, Mallick Indranil
Аннотация
Worst pattern of invasion (WPOI) has been evaluated in many single-institute cohorts. Our goal was to perform a large multicentre evaluation of WPOI as a prognostic marker in oral squamous cell carcinoma (OSCC). Retrospective pathology data was collated from 14 institutions and compared with clinical outcome in 1374 OSCC patients with upfront curative resection. Most cases were of oral tongue (n = 645, 47%); T2 (33%) and N0 (59%). WPOI 1-3 frequency was 29.4%, WPOI 4 47% and WPOI 5 22%. On univariable analysis, the 3-year disease free survival (DFS) was 54.2% for WPOI 5 vs. 69.7% for WPOI 1-4 (p < 0.001). The locoregional control (LRC) was 68.9% vs 79.2% (p = 0.001), and overall survival (OS) 68.4% vs 83.8% (p < 0.001). On multivariable Cox-regression in the entire cohort, WPOI 4 or 5 was strongly correlated with other known poor prognostic factors and not an independent predictor of OS (HR 1.10, 95% CI 0.92-1.52), LRC or DFS. However, in early-stage (pT1-2 N0) patients treated with surgery alone without adjuvant radiotherapy, WPOI 5 was a robust independent predictor of DFS (HR 4.36, 95% CI 1.54-12.32, p = 0.006), OS (HR 3.69, 95% CI 1.23-11.1, p = 0.020) and LRC (HR 3.52, 95% CI 2.13-5.82, p <0.001) after applying inverse probability weighting to correct for selection bias. Furthermore, in the entire cohort of early-stage patients, interaction modeling showed that adjuvant radiotherapy significantly reduces the risk for both DFS and LRC for those with WPOI-5 (Interaction p = 0.002). Therefore, it may act as a predictive biomarker for the benefit of adjuvant radiotherapy. The prognostic and predictive role of WPOI-5 should be validated in prospective trials.