TY - JOUR
T1 - Clinical course and survival in patients with squamous cell carcinoma of the maxillary alveolus and hard palate: Results from a single-center prospective cohort
AU - Hakim, Samer George
AU - Steller, Daniel
AU - Sieg, Peter
AU - Rades, Dirk
AU - Alsharif, Ubai
N1 - Publisher Copyright:
© 2019
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/1
Y1 - 2020/1
N2 - Objectives: Operative management of squamous cell carcinoma of the maxillary alveolus and hard palate (MHSCC) is still a controversial issue, especially for cN0 cases. We report the survival outcomes in patients with MHSCC, including the rate of cervical occult metastasis for UICC stages I/II and survival after elective neck dissection (END). Methods: 77 patients with primary MHSCC were followed-up from 2 months to 14.6 years within a prospectively obtained patient cohort. Factors influencing overall survival (OS), oral cancer-specific survival (OCSS) and disease-free survival (DFS) were assessed. We estimated survival probabilities using Kaplan–Meier survival analysis by histology and stage. We used Cox's proportional hazard regression model to estimate adjusted hazard ratios for OS, OCSS and DFS. Results: Initially, 22 patients presented with stage I, 13 with stage 2, 11 patients with stage 3 and 31 with stage 4 tumors. The presence of nodal disease rose with increased tumor size. 66.2% were treated with surgery only, 26.0% received adjuvant radiotherapy, and 7.8% received primary radiotherapy. Median overall survival was 10.9 years, and survival probabilities at 2, 5 and 10 years were 68.2%, 61.1% and 61.1%, respectively. Five-year overall survival was 72.4% in the END group and 88.9% in the non-END group. Factors influencing OS, OCSS and DFS were tumor size, the presence of metastatic disease and positive resection margins. Conclusions: MHSCC seems to show a better overall survival compared to OSCC of other locations and is less likely to develop regional and distant metastasis; END might not be necessary in early stage tumors.
AB - Objectives: Operative management of squamous cell carcinoma of the maxillary alveolus and hard palate (MHSCC) is still a controversial issue, especially for cN0 cases. We report the survival outcomes in patients with MHSCC, including the rate of cervical occult metastasis for UICC stages I/II and survival after elective neck dissection (END). Methods: 77 patients with primary MHSCC were followed-up from 2 months to 14.6 years within a prospectively obtained patient cohort. Factors influencing overall survival (OS), oral cancer-specific survival (OCSS) and disease-free survival (DFS) were assessed. We estimated survival probabilities using Kaplan–Meier survival analysis by histology and stage. We used Cox's proportional hazard regression model to estimate adjusted hazard ratios for OS, OCSS and DFS. Results: Initially, 22 patients presented with stage I, 13 with stage 2, 11 patients with stage 3 and 31 with stage 4 tumors. The presence of nodal disease rose with increased tumor size. 66.2% were treated with surgery only, 26.0% received adjuvant radiotherapy, and 7.8% received primary radiotherapy. Median overall survival was 10.9 years, and survival probabilities at 2, 5 and 10 years were 68.2%, 61.1% and 61.1%, respectively. Five-year overall survival was 72.4% in the END group and 88.9% in the non-END group. Factors influencing OS, OCSS and DFS were tumor size, the presence of metastatic disease and positive resection margins. Conclusions: MHSCC seems to show a better overall survival compared to OSCC of other locations and is less likely to develop regional and distant metastasis; END might not be necessary in early stage tumors.
UR - http://www.scopus.com/inward/record.url?scp=85076969418&partnerID=8YFLogxK
U2 - 10.1016/j.jcms.2019.12.008
DO - 10.1016/j.jcms.2019.12.008
M3 - Journal articles
C2 - 31884030
AN - SCOPUS:85076969418
SN - 1010-5182
VL - 48
SP - 111
EP - 116
JO - Journal of Cranio-Maxillofacial Surgery
JF - Journal of Cranio-Maxillofacial Surgery
IS - 1
ER -