Surgical Options for Locally Advanced Oropharyngeal Cancer

A predictive model for patients with local-regionally advanced oropharyngeal squamous cell carcinoma treated after cervical lymph node dissection

PURPOSE

To develop a nomogram to predict the cancer-specific survival of patients with local-regionally advanced oropharyngeal squamous cell carcinoma after cervical lymph node dissection.

METHODS

The clinical variables of patients confirmed as having oropharyngeal squamous cell carcinoma between 2008 and 2015 were retrieved from the Surveillance, Epidemiology and End Results database. Univariate and multivariate analysis were performed, followed by the construction of nomograms for CSS. Nomogram' accuracy was evaluated through the concordance index, calibration curves and decision curve analysis.

RESULTS

A total of 1994 oropharyngeal squamous cell carcinoma patients who underwent surgery were included in this study. Sex, T-stage, American Joint Committee on Cancer-stage, positive lymph nodes, positive lymph node ratio, log odds of positive lymph nodes, and postoperative radiotherapy were selected to establish the nomogram for oropharyngeal squamous cell carcinoma. The concordance index of the nomogram was 0.747 (95% CI 0.714-0.780) in the training calibration cohort and 0.735 (95% CI 0.68-0.789) in the validationcohort and the time-dependent Area under the curve (> 0.7) indicated satisfactory discriminative ability of the nomogram. The calibration plot shows that there is a good consistency between the predictions of the nomogram and the actual observations in the training and validation cohorts. In addition, decision curve analysis showed that the nomogram was clinically useful and had a better ability to recognize patients at high risk than the American Joint Committee on Cancer tumor-node-metastasis staging.

CONCLUSION

The predictive model has the potential to provide valuable guidance to clinicians in the treatment of patients with locoregionally advanced OPSCC confined to the cervical lymph nodes.

The Trajectory of Cancer-Related Fatigue and Its Associating Factors in Patients with Esophageal Cancer Receiving Treatments: A Prospective Longitudinal Study

BACKGROUND

Cancer-related fatigue (CRF) is the most distressing symptom in the overall cancer population. For patients with esophageal cancer, CRF may even be harder to predict and control due to its complicated and prolonged treatment. Moreover, communication difficulties due to disease progression or treatment may further diminish esophageal cancer patients' ability to communicate about CRF. However, little research has addressed the trajectory and associating factors of CRF in this population, especially during the active treatment phase. The purpose of this study was (1) to evaluate and compare the level of CRF at three time points, namely before treatment, a month after concurrent chemoradiotherapy (CCRT), and a week after surgery, and (2) to identify associated factors of CRF.

METHODS

This prospective cohort study used a questionnaire to evaluate esophageal cancer patients' CRF at three time points. Repeated measures ANOVA and linear regression were used to analyze the data.

RESULTS

This study included 73 participants. The severity of all CRF aspects intensified significantly over the course of treatment, reaching the highest level after surgery (P < 0.001). Worries of physician invalidation at baseline (P < 0.05) and marital status associated with CRF after CCRT and after surgery.

CONCLUSIONS

This is the first study to demonstrate the relationship between CRF and physician invalidation. Clinicians must be aware of the intensifying trend of CRF and provide timely intervention when caring for patients with esophageal cancer during cancer treatment. Reducing the worries of physician invalidation may alleviate CRF.

Correlating muscle resection with functional swallow outcomes: An anatomic framework informed systematic review of the literature

OBJECTIVE

To perform a systematic review of studies reporting swallow-associated outcomes in patients who received surgery for head and neck cancer (HNC), informed by an anatomic and physiologic framework of pharyngeal phase of swallowing (Pearson's dual-sling model).

METHODS

PUBMED and Google Scholar databases were searched for peer-reviewed papers published between 1990 and 2019 using relevant MeSH terms. Exclusion criteria were 1) discussions comparing reconstruction techniques, 2) case-report/series (n < 10), 3) perspective articles, 4) papers comparing objective instrumental methods of swallowing evaluation, 5) animal/cadaver studies, 6) no instrumental or validated swallow assessment tools used, 7) papers that discuss/include radiotherapy treatment, 8) systematic reviews, 9) papers that discuss swallow training or rehabilitation methods. Two investigators reviewed papers meeting inclusion/exclusions criteria. Muscles resected, anatomic resection site, swallow outcomes, and patient treatment variables were collected.

RESULTS

A total of 115,020 peer-reviewed papers were identified. 74 papers were relevant to this review, 18 met inclusion and exclusion criteria, and none discussed surgical impact on the pharyngeal phase of swallowing using Pearson's dual-sling model. Most papers discussed the effect of tongue-base, supraglottic, or regional anatomic resection. Post-surgical resection Follow-up times ranged from 1 to 13 months. 67% of studies used objective instrumental swallow studies; 22% used patient reported outcome measures. Follow up time since surgical resection, time to feeding tube removal, feeding tube present/absent, aspiration severity were used to define dysphagia endpoints.

CONCLUSIONS

To date, no surgical HNC studies have used the dual-sling mechanism to guide study design, and dysphagia assessment has been inconsistent. To counsel patients on the effects of surgery on pharyngeal phase of swallow function, specialists need physiologically grounded research that correlates muscles resected with consistent measures of swallow function.

Current Therapeutic Strategies in Patients with Oropharyngeal Squamous Cell Carcinoma: Impact of the Tumor HPV Status

Simple Summary

Contrary to other head and neck subsites, oropharyngeal squamous cell carcinoma (OPSCC) has shown a considerable increase in incidence over the past 20 years. This growing incidence is largely due to the increasing place of human papillomavirus (HPV)-related tumors. HPV-positive and HPV-negative OPSCC are two distinct entities with considerable differences in terms of treatment response and prognosis. However, there are no specific recommendations yet in the therapeutic management of OPSCC patients according to their tumor HPV-status. The aim of this review is therefore to discuss the therapeutic management of patients with OPSCC and the impact of HPV status on treatment selection.

Abstract

Since there is no published randomized study comparing surgical and non-surgical therapeutic strategies in patients with oropharyngeal squamous cell carcinoma (OPSCC), the therapeutic management of these patients remains highly controversial. While human papillomavirus (HPV)-positive and HPV-negative OPSCC are now recognized as two distinct diseases with different epidemiological, biological, and clinical characteristics, the impact of HPV status on the management of OPSCC patients is still unclear. In this review, we analyze the current therapeutic options in patients with OPSCC, highlighting the most recent advances in surgical and non-surgical therapies, and we discuss the impact of HPV status on the therapeutic strategy.

Surgeon practice patterns in transoral robotic surgery for HPV-related oropharyngeal cancer

OBJECTIVES

Analyze how otolaryngologists approach HPV-related oropharyngeal cancer in terms of patient selection for transoral surgery, perceptions of treatment related risks and benefits, and adjuvant treatment decisions.

MATERIALS AND METHODS

A survey on HPV-related cancer management was distributed to otolaryngologists in the US through RedCap. Differences in responses were analyzed using Pearson's chi-squared and Fisher's exact tests.

RESULTS

A total of 111 out of 143 (77.6%) otolaryngologists completed the survey. Overall, most prefer treating T1/T2 tumors using transoral robotic surgery (TORS) and T3 tumors through primary radiation therapy (RT), though there were significant differences between cohorts. Non-fellowship-trained surgeons and those in community practices favored RT for T1/T2 more than their fellowship-trained and academic counterparts, respectively. For adjuvant treatment, non-fellowship-trained surgeons favored adjuvant CRT, whereas fellowship-trained surgeons preferred only adjuvant RT, for patients with lymphovascular or perineural invasion, >1 lymph node involvement, or close deep margins. TORS was viewed as having less adverse sequelae (i.e. dysphagia, dysphonia, xerostomia). Though the two modalities had similar oncologic outcomes, TORS was perceived as providing better quality of life (QOL).

CONCLUSIONS

There are variations in HPV-related OPSCC management based on surgeon background and preferences across the US. TORS and primary RT are believed to offer similar oncologic control, but the former provides lesser adverse sequelae and better QOL. Additionally, surgeon demographics (i.e. fellowship status, practice type, and region) can affect management decisions, including patient selection for TORS and adjuvant therapy decisions. Further study is required to better understand and standardize appropriate HPV-positive OPSCC management.

Predictors of survival in patients undergoing oropharyngeal surgery for cancer recurrence after radiation therapy

PURPOSE

The incidence of oropharyngeal squamous cell carcinoma continues to rise with the majority of patients receiving definitive or adjunctive radiation. For patients with locoregional recurrence after radiation, optimal treatment involves salvage surgery. The aim of this study is to identify factors that predict survival to ultimately improve patient selection for salvage surgery.

METHODS

Retrospective cohort study at an NCI-designated cancer center. We analyzed patients with a history of head and neck radiation who presented with persistent/recurrent or second primary disease requiring salvage oropharyngeal resection from 1998-2017 (n = 120). Patients were stratified into three classes based on time to recurrence and presence of laryngopharyngeal dysfunction. Primary outcomes were 5-year overall survival (OS) and disease specific survival (DSS).

RESULTS

Median OS was 27 months (median follow-up 20 months). Five-year OS was 47% for class I (recurrence > 2 years), 26% for class II (recurrence ≤ 2 years), and 0% for class III (recurrence ≤ 2 years and laryngopharyngeal dysfunction), (p < 0.0001). Five-year DSS showed significant differences between classes (p < 0.0001). On multivariate analysis, class remained predictive of OS (p = 0.04- < 0.001) and DSS (p = 0.04-0.001). Adjuvant radiation after salvage surgery with negative margins showed superior OS (71% vs. 28%, p = 0.01) and DSS (83% vs 37%, p = 0.02) compared to surgery alone and was a significant predictor of improved survival on multivariate analysis (HR 0.1, p = 0.04).

CONCLUSION

This study identified a subset of patients with oropharyngeal cancer recurrence within two years of initial treatment and with laryngopharyngeal dysfunction who have poor outcomes for salvage surgery.