Treatment toxicities and their impact on oral intake following non-surgical management for head and neck cancer: a 3-year longitudinal study

Implementing flexible endoscopic evaluation of swallow screening within annual cancer surveillance appointments to monitor for late-stage radiation-induced dysphagia: A feasibility study

BACKGROUND

Late-stage progressive decline of swallowing function after radiotherapy for head and neck cancer (HNC) is often difficult to monitor. This study examined the feasibility and clinical outcomes of speech-language pathology implementing flexible endoscopic evaluation of swallow (FEES) screening during annual cancer surveillance visits to monitor late-stage swallowing function.

METHODS

Patients >2 years post treatment who attended routine oncological visits underwent FEES screening. Feasibility (service data, stakeholder survey) and swallowing outcomes (oral intake, secretions, internal lymphedema, penetration-aspiration, and residue) were collected.

RESULTS

Screening was completed with 70% (50/71) of eligible patients. Medical staff and speech-language pathologists indicated the protocol was worthwhile and achievable to incorporate into practice. Almost all patients were willing to complete the protocol annually. FEES outcomes identified 84% with dysphagia versus only 26% self-reported dysphagia.

CONCLUSION

Findings indicate FEES screening incorporated into annual oncological reviews is feasible and effective at monitoring late-stage swallowing function following HNC.

Screening oropharyngeal dysphagia in patients with head and neck cancer in a radiation oncology department

Background

Oropharyngeal dysphagia (OD) occurs in up to 40% of head and neck cancer (HNC) patients before treatment and remains a common symptom (23-60%) after oncological treatments, leading to several consequences. Early detection is essential for effective swallowing-rehabilitation and nutritional-support. The increased radiosensitivity of tumors associated with human papillomavirus (HPV) and advances in imaging techniques have stimulated research into deintensified strategies to minimize radiotherapy (RT) side effects. The purposes of the study are to establish the percentage of patients with HNC who are candidates to RT who are at risk of dysphagia [Eating Assessment Tool (EAT) score ≥ 3], determine if tumor location and previous surgery were related to a higher risk of dysphagia and if patients suffering severe toxicity during cancer therapy are at greater risk of posttreatment-dysphagia.

Materials and methods

Patients diagnosed of HNC who were referred to RT treatment at our Radiation Oncology Department were prospectively included. Questionnaire EAT-10 was filled in the first assessment used as a screening tool and repeated one month after treatment. Treatment toxicity was established according to common toxicity criteria adverse effects (CTCAE4.03).

Results

From November 2019 to January 2021, 72 patients were included. All completed pretreatment EAT-10 questionnaire. The mean (SD) score of the pretreatment EAT-10 was 7.26 ± 11.19 and 43.1% were at dysphagia risk. Patients with tumors located in the oral cavity, oropharynx and those that had received surgery prior to RT had higher risk than the rest of locations or those who had not previous surgery (p = 0.001 and p = 0.002, respectively). After oncological treatment 95.83% completed EAT-10 post-treatment and 45,6% showed positive EAT-10 score.

Conclusions

Patients with tumors in the oral cavity or oropharynx, presenting in advanced stage, and who previously received surgery are at higher risk of developing dysphagia. The EAT-10 is a simple tool that can help us identify those patients and refer them for an intensive evaluation to reduce dysphagia-consequences.

Managing eating problems after cancer

Cancer treatment can cause food-limiting eating problems that persist or arise months or years after treatment, with negative consequences for the survivor's nutritional status, physical and social function, and quality of life. Hence, post-treatment follow-up and cancer rehabilitation services should aim to support the survivor in managing treatment-related eating problems. This narrative review summarizes the evidence on and provides an overview of interventions to manage eating problems after cancer. Interventions are grouped into four: 1) food-based interventions, including alternating food/fluids and experimenting through the trial-and-error strategy to find tolerated foods; 2) eating behavioral interventions, including instructions on swallowing techniques, posture, and utensils; 3) psychosocial support interventions, including group-based interventions and interventions including relatives; and 4) physical interventions, including exercises to improve dysphagia or trismus. While physical interventions are supported by evidence from several intervention studies, few studies evaluating the effect of other types of interventions in survivors were identified. Instead, qualitative and observational data providing insights on experiences of and coping strategies applied by survivors with eating problems underpin the need for the other types of interventions. Since existing research primarily focuses on survivors of head and neck cancer, future studies on the organization and effects of interventions aimed at managing eating problems among different groups of survivors are relevant.

Advances in and applications of imaging and radiomics in head and neck cancer survivorship

PURPOSE OF REVIEW

Radiological imaging is an essential component of head/neck cancer (HNC) care. Advances in imaging modalities (including CT, PET, MRI and ultrasound) and analysis have enhanced our understanding of tumour characteristics and prognosis. However, the application of these methods to evaluate treatment-related toxicities and functional burden is still emerging. This review showcases recent literature applying advanced imaging and radiomics to the assessment and management of sequelae following chemoradiotherapy for HNC.

RECENT FINDINGS

Whilst primarily early-stage/exploratory studies, recent investigations have showcased the feasibility of using radiological imaging, particularly advanced/functional MRI (including diffusion-weighted and dynamic contrast-enhanced MRI), to quantify treatment-induced tissue change in the head/neck musculature, and the clinical manifestation of lymphoedema/fibrosis and dysphagia. Advanced feature analysis and radiomic studies have also begun to give specific focus to the prediction of functional endpoints, including dysphagia, trismus and fibrosis.

SUMMARY

There is demonstrated potential in the use of novel imaging techniques, to help better understand pathophysiology, and improve assessment and treatment of functional deficits following HNC treatment. As larger studies emerge, technologies continue to progress, and pathways to clinical translation are honed, the application of these methods offers an exciting opportunity to transform clinical practices and improve outcomes for HNC survivors.

Oral health-related quality of life after radiation therapy for head and neck cancer: the OraRad study

PURPOSE

Head and neck cancer (HNC) treatment results in morbidity impacting quality of life (QOL) in survivorship. This analysis evaluated changes in oral health-related QOL (OH-QOL) up to 2 years after curative intent radiation therapy (RT) for HNC patients and factors associated with these changes.

METHODS

572 HNC patients participated in a multicenter, prospective observational study (OraRad). Data collected included sociodemographic, tumor, and treatment variables. Ten single-item questions and 2 composite scales of swallowing problems and senses problems (taste and smell) from a standard QOL instrument were assessed before RT and at 6-month intervals after RT.

RESULTS

The most persistently impacted OH-QOL variables at 24 months included: dry mouth; sticky saliva, and senses problems. These measures were most elevated at the 6-month visit. Aspects of swallowing were most impacted by oropharyngeal tumor site, chemotherapy, and non-Hispanic ethnicity. Problems with senses and dry mouth were worse with older age. Dry mouth and sticky saliva increased more among men and those with oropharyngeal cancer, nodal involvement, and use of chemotherapy. Problems with mouth opening were increased by chemotherapy and were more common among non-White and Hispanic individuals. A 1000 cGy increase in RT dose was associated with a clinically meaningful change in difficulty swallowing solid food, dry mouth, sticky saliva, sense of taste, and senses problems.

CONCLUSIONS

Demographic, tumor, and treatment variables impacted OH-QOL for HNC patients up to 2 years after RT. Dry mouth is the most intense and sustained toxicity of RT that negatively impacts OH-QOL of HNC survivors.

CLINICALTRIALS

GOV IDENTIFIER

NCT02057510; first posted February 7, 2014.

Enhancing speech-language pathology head and neck cancer service provision in rural Australia: Using a plan, do, study, act approach

PURPOSE

People with head and neck cancer (HNC) require ongoing speech-language pathology (SLP) services into the post-acute recovery phase of care. However, there are recognised service inequities/barriers for people from rural areas who are unable to access SLP services locally, necessitating travel to metropolitan centres. This study implemented strategies to assist rural speech-language pathologists to work to full scope of practice and support post-acute rehabilitation services for people with HNC.

METHOD

The study involved five SLP departments within a rural health referral network (one tertiary cancer centre, four rural sites). It involved a Plan-Do-Study-Act (PDSA) method, across two six month cycles, to achieve implementation of a model to support local SLP delivery of HNC care. Data collected included service activity, consumer feedback from people accessing local care, staff perceptions of the model and changes to local SLP service capabilities.

RESULT

Staff identified four objectives for change across the two PDSA cycles including resource development, upskilling/training and improving communication, and handover processes. In cycle 1, multiple resources were developed such as an eLearning program for training and skill development. In cycle 2, a pilot trial of a shared-care model was implemented, which successfully supported a transfer of care to local services for eight people with HNC. The majority of consumers accessing HNC care locally were satisfied with the service and would recommend future people with HNC receive similar care.

CONCLUSION

The PDSA process supported development and implementation of a model enabling local speech-language pathologists to offer post-acute care for people with HNC. This model helps rural people with HNC to access care closer to home by supporting rural clinicians to work to full scope of practice.

A Prospective, Longitudinal and Exploratory Study of Head and Neck Lymphoedema and Dysphagia Following Chemoradiotherapy for Head and Neck Cancer

The aim of the study was to examine the following: (a) the trajectory of external and internal head and neck lymphoedema (HNL) in patients with head and neck cancer (HNC) up to 12 months post-chemoradiotherapy (CRT) and (b) the relationship between HNL and swallowing function. Using a prospective longitudinal cohort study, external/internal HNL and swallowing were examined in 33 participants at 3, 6 and 12 months post-CRT. External HNL was assessed using the Assessment of Lymphoedema of the Head and Neck and the MD Anderson Cancer Centre Lymphoedema Rating Scale. Internal HNL was rated using Patterson’s Radiotherapy Oedema Rating Scale. Swallowing was assessed via clinical, instrumental and patient-reported measures. Associations between HNL and swallowing were examined using multivariable regression models. External HNL was prevalent at 3 months (71%), improved by 6 months (58%) and largely resolved by 12 months (10%). In contrast, moderate/severe internal HNL was prevalent at 3 months (96%), 6 months (84%) and at 12 months (65%). More severe penetration/aspiration and increased diet modification were associated with higher severities of external HNL (p=0.006 and p=0.031, respectively) and internal HNL (p<0.001 and p=0.007, respectively), and more diffuse internal HNL (p=0.043 and p=0.001, respectively). Worse patient-reported swallowing outcomes were associated with a higher severity of external HNL (p=0.001) and more diffuse internal HNL (p=0.002). External HNL largely resolves by 12 months post-CRT, but internal HNL persists. Patients with a higher severity of external and/or internal HNL and those with more diffuse internal HNL can be expected to have more severe dysphagia.

A prospective observational cohort study examining the development of head and neck lymphedema from the time of diagnosis

INTRODUCTION

Head and neck lymphedema can occur in the internal or external structures of the head and neck region. Little is known about the development of this condition over the course of treatment for head and neck cancer. This study aimed to observe the development of internal and external lymphedema from diagnosis to 12 weeks postacute treatment.

METHODS

A single center, prospective observational cohort study assessed participants for external lymphedema, internal lymphedema, quality of life, and symptom burden. Assessments were conducted prior to starting radiotherapy (RT), at the end of RT, 6 and 12 weeks after RT.

RESULTS

Forty-six participants were recruited. External lymphedema as measured by percentage water content, increased from 41.9 at baseline (95% CI: 39.3-44.4) to 50.4 (95% CI: 46.0-54.8) at 12 weeks following RT (p-value < .001). After adjusting for changes in weight and participant age at baseline, a general increase in tape measurements was observed over time with significant increases from baseline to 12 weeks post-RT for all measurement points. By 12 weeks post-RT, all participants had lymphedema present in eight of 13 internal sites assessed.

CONCLUSIONS

Internal and external head and neck lymphedema was observed to increase from baseline to 12 weeks after completion of RT without abatement. People with head and neck cancer should be educated about the potentially extended duration of this treatment side effect. Further research is required to determine the point at which swelling symptoms recede.

Post-acute health care needs of people with head and neck cancer: Mapping health care services, experiences, and the impact of rurality

BACKGROUND

People with head and neck cancer (HNC) have complex health care needs; however, limited evidence exists regarding the nature or patterns of service access and use. This study explored the post-discharge health care needs and experiences of individuals with HNC from metropolitan and rural areas.

METHODS

Health care appointments and services accessed by people with HNC were collated for 6-month post-treatment. Data analysis of the whole cohort examined patterns of access while journey mapping integrated participants' experiences of recovery.

RESULTS

The 6-month service access journey was mapped for 11 people. Rural participants attended a significantly greater number of appointments (p = 0.012), higher canceled/missed appointments (p = 0.013), and saw more professionals (p = 0.007). Rural participants reported higher stress and burden due to service access barriers and unmet needs.

CONCLUSIONS

Multiple challenges and inequities exist for rural people with HNC. Findings inform opportunities to enhance the post-treatment recovery of people with HNC in rural areas.

Lactoferrin supplementation for taste and smell abnormalities among patients receiving cancer chemotherapy

PURPOSE

Taste and smell abnormalities (TSA) are common in patients receiving chemotherapy and may lead to altered nutritional intake, treatment withdrawal, and impaired quality of life. Lipid peroxidation in the oral cavity is one cause of TSA. Lactoferrin (LFN), an iron-binding salivary protein, reduces production of lipid oxidation byproducts and has been shown to reduce perception of unpleasant flavors. To assess the feasibility of LFN as a treatment for TSA, we conducted pilot investigations among patients with cancer who self-reported TSA following onset of chemotherapy. The primary objective was to assess change in subjective taste and smell perception from baseline to completion of 30 days of LFN supplementation.

METHODS

Patients were treated with 750 mg LFN daily for 30 days and followed for an additional 30 days without LFN. TSA was measured via the taste and smell questionnaire (TSQ) including taste (score 0-10), smell (score 0-6), and composite scores (0-16) (0 = no TSA) at baseline, day 30, and day 60.

RESULTS

A total of 26 patients enrolled; 19 remained on study at day 30 and 17 at day 60. Baseline mean TSQ scores were 6.5 (taste), 3.1 (smell), and 9.6 (composite). By day 30, mean composite TSQ score improved by 1.7 (p = 0.018); taste and smell improved by 0.6 (p = 0.062) and 1.1 (p = 0.042), respectively. From baseline to day 60, mean composite TSQ score improved by 3.8 (p < 0.0001); taste and smell improved by 1.9 (p = 0.001) and 1.8 (p = 0.003).

CONCLUSIONS

Further evaluation of LFN is warranted to determine its value for improving self-reported TSA among patients receiving chemotherapy.

Association Between Objective Ratings of Swallowing and Dysphagia-Specific Quality of Life in Patients Receiving (Chemo)radiotherapy for Oropharyngeal Cancer

The pervasive nature of dysphagia in the head/neck cancer (HNC) population necessitates a comprehensive evaluation approach, including both objective assessment of dysphagia, and subjective patient-reported functional measures. However, the congruence between clinician-rated and patient-perceived function is still not well understood. The current study investigated the association between objective clinician-rated swallow physiology (using the MBSImP) and patient-reported measures of swallowing-related quality of life (using the MDADI) in a secondary analysis of patients with oropharyngeal HNC treated with (chemo)radiotherapy. Seventy-nine patients with oropharyngeal HNC receiving (chemo)radiotherapy completed a standardised videofluoroscopic swallow study (VFSS) rated using the MBSImP, and the MDADI, at pre-treatment (baseline), 6 weeks and 3 months post-treatment as per a previous prospective RCT. Data on n = 67 participants were analysed as part of the secondary analysis. Association between MBSImP oral and pharyngeal composite scores versus MDADI Global and subscale scores was examined using ordinary least squares regression and mixed-effects general linear modelling (GLM). Univariable analyses demonstrated significant associations between MBSImP oral composite scores and each of the MDADI subscales, as well as the MBSImP pharyngeal composite scores and all MDADI subscales. GLM analysis revealed significant associations were maintained between MBSImP pharyngeal scores and the MDADI global and emotional subscale scores at the multivariable level, with the physical subscale trending towards significance. No significant association was observed between the MBSImP oral composite scores and any of the MDADI subscales at the multivariable level. This study found significant associations between objective measures of pharyngeal swallow physiology and patient-perceived swallowing-related quality of life. These findings suggest a higher degree of concordance between clinician-rated and patient-reported measures up to 3 months post-(C)RT than previously reported.

Speech pathology service enhancement for people with head and neck cancer living in rural areas: Using a concept mapping approach to inform service change

BACKGROUND

Speech pathology (SP) services provide swallowing and communication intervention to people with head and neck cancer (HNC) across the continuum of care. However, difficulties exist with access and delivery of services in rural areas. The study aim was to identify actionable goals for SP change, utilizing a concept mapping approach.

METHODS

Eleven SP staff from two regional/remote services completed the concept mapping process. Multivariate analysis and multidimensional scaling were used to develop a final set of prioritized goals for change.

RESULTS

Between the two participating health services, 30 actionable goals were identified within the "green-zone" on the go-zone graph of importance and changeability. Among the most highly rated areas for change was the need to deliver and receive more support for training, mentoring, and supervision to consolidate skills.

CONCLUSIONS

This methodology enabled identification of prioritized, actionable changes to improve SP services for people with HNC living in regional/remote areas.

Determinants of patient-reported xerostomia among long-term oropharyngeal cancer survivors

BACKGROUND

This study was conducted to identify clinicodemographic risk factors for xerostomia among long-term oropharyngeal cancer (OPC) survivors.

METHODS

This cross-sectional study included 906 disease-free, adult OPC survivors with a median survival duration at the time of survey of 6 years (range, 1-16 years); self-reported xerostomia scores were available for 877 participants. Study participants had completed curative treatment between January 2000 and December 2013 and responded to a survey administered from September 2015 to July 2016. The primary outcome variable was cancer patient-reported xerostomia measured with the MD Anderson Symptom Inventory Head and Neck Cancer Module. Clinicodemographic risk factors for moderate to severe xerostomia were identified via multivariable logistic regression.

RESULTS

Moderate to severe xerostomia was reported by 343 of the respondents (39.1%). Female sex (odds ratio [OR], 1.82; 95% CI, 1.22-2.71; P = .003; Bayesian false-discovery probability [BFDP] = 0.568), high school or lower education (OR, 1.73; 95% CI, 1.19-2.52; P = .004; BFDP = 0.636), and current cigarette smoking at the time of survey (OR, 2.56; 95% CI, 1.19-5.47; P = .016; BFDP = 0.800) were risk factors for moderate to severe xerostomia, and bilateral intensity-modulated radiotherapy (IMRT) combined with proton therapy and ipsilateral IMRT were protective.

CONCLUSIONS

In this large xerostomia study, modern radiotherapy was a protective factor, and continued cigarette smoking at the time of survey, female sex, and high school or lower education were identified as other contributing risk factors associated with moderate to severe xerostomia. Importantly, these findings need to be confirmed in prospective studies. These results can inform future research and targeted patient-centered interventions to monitor and manage radiation therapy-associated xerostomia and preserve quality of life among patients with OPC.

Longitudinal comparisons of a whole-mouth taste test to clinician-rated and patient-reported outcomes of dysgeusia postradiotherapy in patients with head and neck cancer and associations with oral intake

BACKGROUND

After head and neck cancer (HNC) treatment, dysgeusia may be a barrier to oral intake. In this exploratory study, we prospectively examined taste perception, clinician-rated (CRO) and patient-reported (PRO) taste changes and their effect on oral intake postradiotherapy.

METHODS

Twenty-eight patients were assessed at baseline, treatment weeks 2 and 4, and 1, 3, and 6 months post-treatment using a whole-mouth taste test and associated CRO and subjective PRO measures.

RESULTS

Greater taste impairment was reflected by subjective than by a whole-mouth taste test. The most significant and consistent decline occurred mid-treatment. The Chemotherapy-Induced Taste Alteration Scale (PRO) discomfort subscale correlated significantly with maintaining an oral diet, percent of oral intake, and appetite level from mid-treatment to 6 months post-treatment.

CONCLUSIONS

PRO results indicated ongoing oral intake issues. Whole-mouth taste tests may fail to fully reflect functional taste-loss. Dysgeusia prevention and treatment methods are needed to improve patient outcomes.

Association between external and internal lymphedema and chronic dysphagia following head and neck cancer treatment

BACKGROUND

To examine the relationship between chronic external and internal head and neck lymphedema (HNL) and swallowing function in patients following head and neck cancer (HNC) treatment.

METHODS

Seventy-nine participants, 1-3 years post treatment were assessed for external HNL using the MD Anderson Cancer Centre Lymphedema Rating Scale, and internal HNL using Patterson's Radiotherapy Edema Rating Scale. Swallowing was assessed via instrumental, clinical and patient-reported outcome measures.

RESULTS

HNL presented as internal only (68%), combined external/internal (29%), and external only (1%). Laryngeal penetration/aspiration was confirmed in 20%. Stepwise multivariable regression models, that accounted for primary site, revealed that a higher severity of external HNL and internal HNL was associated with more severe penetration/aspiration (P < .004 and P = .006, respectively), diet modification (P < .001 both), and poorer patient-reported outcomes (P = .037 and P = .014, respectively).

CONCLUSION

Increased swallowing issues can be expected in patients presenting with more severe external HNL and/or internal HNL following HNC treatment.

From the carer's mouth: A phenomenological exploration of carer experiences with head and neck cancer patients

OBJECTIVE

Receiving a diagnosis of head and neck cancer is devastating for patients and family carers and causes high levels of distress. Previous studies report that carer distress levels exceed that of patients, but go largely unnoticed by health professionals. To date, there is a paucity of studies that have described carers' perspectives of the lived experience of caring for a loved one diagnosed with head and neck cancer. The aim of this study was to explore the lived experiences of carers of patients diagnosed with head and neck cancer.

METHODS

This qualitative study was informed by descriptive phenomenology. Carers of patients who had been diagnosed with head and neck cancer within the last 6 years were recruited from participating hospitals in Perth, Western Australia. Semi-structured interviews were conducted with 20 carers of patients diagnosed with head and neck cancer. Thematic analysis was conducted to gain an understanding of participants lived experiences.

RESULTS

Key themes identified were: Silent Suffering, Gamut of Emotions, Causal Attribution, Changing Priorities, Gaining Support, and Coping. The changing priorities themes highlights that carers prioritised (a) being available for their loved one and (b) taking an active role in managing head and neck cancer symptoms and side effects.

CONCLUSIONS

Carers of patients diagnosed with head and neck cancer experience distress. Instead of seeking support, carers often elected to suffer in silence. Implications for practice include screening for carer distress and providing specific interventions focused on caring for someone diagnosed with head and neck cancer.

Speech-Language Pathology Guidance for Tracheostomy During the COVID-19 Pandemic: An International Multidisciplinary Perspective

Purpose As the COVID-19 pandemic has unfolded, there has been growing recognition of risks to frontline health care workers. When caring for patients with tracheostomy, speech-language pathologists have significant exposure to mucosal surfaces, secretions, and aerosols that may harbor the SARS-CoV-2 virus. This tutorial provides guidance on practices for safely performing patient evaluation and procedures, thereby reducing risk of infection. Method Data were collated through review of literature, guidelines, and consensus statements relating to COVID-19 and similar high-consequent infections, with a focus on mitigating risk of transmission to health care workers. Particular emphasis was placed on speech-language pathologists, nurses, and other allied health professionals. A multinational interdisciplinary team then analyzed findings, arriving at recommendations through consensus via electronic communications and video conference. Results Reports of transmission of infection to health care workers in the current COVID-19 pandemic and previous outbreaks substantiate the need for safe practices. Many procedures routinely performed by speech-language pathologists have a significant risk of infection due to aerosol generation. COVID-19 testing can inform level of protective equipment, and meticulous hygiene can stem spread of nosocomial infection. Modifications to standard clinical practice in tracheostomy are often required. Personal protective equipment, including either powered air-purifying respirator or N95 mask, gloves, goggles, and gown, are needed when performing aerosol-generating procedures in patients with known or suspected COVID-19 infection. Conclusions Speech-language pathologists are often called on to assist in the care of patients with tracheostomy and known or suspected COVID-19 infection. Appropriate care of these patients is predicated on maintaining the health and safety of the health care team. Careful adherence to best practices can significantly reduce risk of infectious transmission.

Swallowing functional outcomes and nutritional status in head and neck cancer radiotherapy: longitudinal study

Objective

To explore the relationships between swallowing functional outcomes and nutritional status in patients with head and neck cancer undergoing radiotherapy (RT).

Methods

This longitudinal study included 122 patients. Data were collected at three time points: baseline (T1), the third week of RT (T2) and the completion of RT (T3). The Common Terminology Criteria for Adverse Events was used to assess the symptom of dysphagia and other toxicities; the MD Anderson Dysphagia Inventory (MDADI) was used to assess the patient-perceived swallowing functional outcomes; the nutritional status was evaluated by the weight ratio and the Patient-Generated Subjective Global Assessment (PG-SGA). The generalised estimating equation (GEE) was used to measure the correlation of MDADI with the weight ratio or PG-SGA and also to analyse the influential factors of swallowing functional outcomes.

Results

The participants’ acute dysphagia rates were 5.7% at T1, 69.7% at T2 and 77.9% at T3. The swallowing functional outcomes worsen over RT (p<0.001) and were associated with weight ratio (β=0.032, p=0.008) and PG-SGA (β=−0.115, p<0.001). GEE models showed that patients with cancer of the pharynx region, advanced stage, chemoradiotherapy and high RT dose perceived worse swallowing functional outcomes. Oral mucositis, pharynx mucositis and salivary gland inflammation were positively correlated with swallowing functional outcomes, and the pharynx mucositis presented the highest absolute value of β.

Conclusion

The swallowing functional outcomes were negatively correlated with nutritional status. Healthcare professionals should identify early on the population at higher risk and focus on multiple toxicities, especially the management of pharynx mucositis, to improve nutritional status.

Taste disorder's management: a systematic review

BACKGROUND

Taste disorder is a frequent drug-induced or disease-related oral trouble. Various pharmacological, surgical, or physical treatments have previously been proposed for taste function recovery.

OBJECTIVES

The aim of the present systematic review was to assess the effects of palliative and curative interventions on taste recovery in light of recent literature.

MATERIALS AND METHODS

In accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement, a search of the literature published up to June 2019 was conducted using MEDLINE via PubMed, EMBASE, and The US National Institutes of Health Trials Register (PROSPERO registration reference: CRD 42019139315). The methodological quality of the included trials was rated with the "Delphi list For Quality Assessment of Randomized Clinical Trials" and the Newcastle-Ottawa scale.

RESULTS

From the 1842 titles first identified, 28 articles met the inclusion criteria. Interventions included zinc (aspartate, sulfate, gluconate, acetate, picolinate, and Polaprezinc®), esomeprazole, L-thyroxin, bethanechol, oral glutamine, delta-9-tetrahydrocannabinol, alpha-lipoic acid, Ginkgo biloba, artificial saliva, pilocarpine, local anesthesia, and improved oral hygiene. The quality of evidence ranged from poor to high.

CONCLUSION

Improving oral hygiene may promote taste ability. Zinc may prevent and alleviate taste disorder in patients undergoing head and neck radiotherapy.

CLINICAL RELEVANCE

The systematic review provided evidence about the clinical efficacy of oral procedures, zinc supplementation, and palliative cares in dysgeusic patients. Further research is needed to find effective treatments with low adverse effects.

EAT-10 Scores and Fiberoptic Endoscopic Evaluation of Swallowing in Head and Neck Cancer Patients

Objective

The purpose of this study was to determine the relationship between patient‐reported symptoms of oropharyngeal dysphagia (OD) using the Eating Assessment Tool (EAT)‐10 and the swallowing function using a standardized fiberoptic endoscopic evaluation of swallowing (FEES) protocol in head and neck cancer (HNC) patients with confirmed OD.

Methods

Fifty‐seven dysphagic HNC patients completed the EAT‐10 and a FEES. Two blinded clinicians scored the randomized FEES examinations. Exclusion criteria consisted of presenting with a concurrent neurological disease, scoring below 23 on a Mini‐Mental State Examination, being older than 85 years, having undergone a total laryngectomy, and being illiterate or blind. Descriptive statistics, linear regression, sensitivity, specificity, and predictive values were calculated.

Results

The majority of the dysphagic patients (N = 38; 66.7%) aspirated after swallowing thin liquid consistency. A large number of patients showed postswallow pharyngeal residue while swallowing thick liquid consistency. More specifically, 42 (73.0%) patients presented postswallow vallecular residue, and 39 (67.9%) patients presented postswallow pyriform sinus residue. All dysphagic patients had an EAT‐10 score ≥ 3. Linear regression analyses showed significant differences in mean EAT‐10 scores between the dichotomized categories (abnormal vs. normal) of postswallow vallecular (P = .037) and pyriform sinus residue (P = .013). No statistically significant difference in mean EAT‐10 scores between the dichotomized categories of penetration or aspiration was found (P = .966).

Conclusion

The EAT‐10 questionnaire seems to have an indicative value for the presence of postswallow pharyngeal residue in dysphagic HNC patients, and a value of 19 points turned out to be useful as a cutoff point for the presence of pharyngeal residue in this study population.

Level of Evidence: 2b

Impact of Clustering Oral Symptoms in the Pathogenesis of Radiation Caries: A Systematic Review

Radiation-related caries (RRC) is a disease with a high potential for destruction of the dentition, which impairs quality of life in head-and-neck (HN) cancer (HNC) patients who undergo radiotherapy. In light of the recently described “clustering of oral symptoms theory,” the present systematic review (PROSPERO CRD42019132709) aims to assess HN and gastrointestinal (GI) symptom clusters among HNC patients and discusses how these indirect effects of cancer therapy play a pivotal role in the pathophysiology of RRC. The search was performed at PubMed, Scopus, and Embase and resulted in 11 studies that met the inclusion criteria. Data extraction was performed with respect to the presence of HN/GI symptom clusters among HNC patients. The methodological data of the studies included were assessed using the MAStARI and GRADE instruments. The most prevalent reported HN symptoms were dysphagia, xerostomia, and pain. Taste alterations and fatigue were also commonly reported by the patients. Loss of appetite and weight loss were regularly reported in the studies, as well as nausea and vomiting. The results of the present study suggest that HNC treatment generates clusters of oral symptoms, leading to dietary changes, impaired oral hygiene, enamel fragility, and a highly cariogenic oral environment, which may impact the risk for RRC. A better understanding of oral symptom clustering could be of considerable clinical significance for the oral health and quality of life of HNC patients. Therefore, contemporary protocols of RRC prevention must take this broader treatment scenario of symptom clusters such as oral side effects into account.

The prevalence of patient-reported dysphagia and oral complications in cancer patients

PURPOSE

Research investigating swallowing problems (dysphagia) and complications within the oral cavity in non-head and neck cancer patients is limited. The purpose of this study was to determine the prevalence of patient-reported dysphagia and oral complications in all cancer patients and to examine the relationships between cancer types, oral complications and dysphagia.

METHODS

A cross-sectional study was conducted at a specialist cancer centre in Australia. Data on patient-reported dysphagia and oral complications were collected using the Vanderbilt Head and Neck Symptom Survey (version 2.0) which was completed by participants in one of three settings: inpatients, ambulatory patients receiving chemotherapy, or ambulatory patients receiving radiotherapy.

RESULTS

Data were collected on 239 patients, receiving treatment for 14 cancer types. The proportion of patients who reported dysphagic symptoms were as follows: any dysphagia (54%); dysphagia for liquids (20%); and dysphagia for solids (46%). Significantly more head and neck patients and significantly fewer breast patients reported dysphagia, but there were no differences between other tumour types. Oral symptoms across all cancer types were reported at the following rates: taste changes (62%); xerostomia (56%); voice changes (37%); smell changes (35%); thick mucous (33%); difficulty with teeth/dentures (25%); mouth/throat pain (20%); and trismus (19%).

CONCLUSIONS

This is the first time comprehensive data on dysphagia and oral complications across all cancer patients have been collected. We have identified that dysphagic symptoms and oral complications-which have implications for quality of life and function-are common in all cancer patients, not just those with head and neck cancer.

Nutritional parameters associated with hospital admissions in patients being treated for head and neck cancer

PURPOSE

This study analysed nutritional parameters (baseline body mass index (BMI), weight changes and enteral nutrition (EN) use, and their association with hospital admissions during radiotherapy in patients with head and neck cancer (HNC)).

METHODS

A retrospective review of patients diagnosed with HNC and treated with radiotherapy between October 2012 and April 2014 was conducted. Data on each subject's diagnosis, age, sex, chemotherapy, previous surgery, EN use, weight changes, and BMI were examined for their association with hospital admissions during treatment.

RESULTS

Eighty-three patients were included, mean age (±standard deviation) = 61 (± 11 years). Thirty-four percent had self-reported weight loss at diagnosis, and mean BMI was 26.2 ± 5.3 kg/m². Mean weight change during treatment was - 5.1 ± 6.2%. Ten patients used EN, with mean weight stabilisation during EN use (0.3 ± 5.1%). Higher presenting BMI, younger age, and definitive radiotherapy ± chemotherapy predicted greater weight loss (p < 0.05). Critical weight loss ≥ 5% was associated with a higher number of hospital admissions for nutrition reasons (n = 10) (p = 0.011) compared with those without critical weight loss (n = 2). EN use was associated with a higher number of nutrition-related admissions; however, it did not predict length of stay among those admitted.

CONCLUSION

Critical weight loss during radiotherapy was associated with unplanned nutrition-related hospital admissions. Higher BMI was associated with greater weight loss during radiotherapy, whilst EN use assisted in weight preservation. Further research around patient selection for nutritional interventions aimed at preventing critical weight loss and unplanned hospital admissions is needed.

What Are We Really Measuring? A Content Comparison of Swallowing Outcome Measures for Head and Neck Cancer Based on the International Classification of Functioning, Disability and Health (ICF)

A combination of outcome measures are required to provide important information on the physiological profile and associated impact of dysphagia in head and neck cancer (HNC). Choosing the most appropriate tool can be a difficult and time-consuming process. The aim of this study was to identify and then compare the content of tools commonly used to assess swallowing post HNC care using the International Classification of Functioning Disability and Health (ICF) as a reference. A literature audit of 11 databases was conducted for relevant articles published between January 2004 and June 2017 and total of 502 papers met the inclusionary criteria. These papers were audited and 27 tools were identified which met the study criteria. The meaningful concepts contained in each tool were mapped to the ICF. Within the 27 tools, 898 meaningful concepts were identified and matched to 60 ICF categories. The most frequently matched ICF categories related to body functions, while comparatively few concepts matched to activity and participation and environmental factors. This study has identified that a large number of tools are currently being used in HNC research to measure swallowing outcomes. The sheer number of tools available to explore dysphagia post HNC highlights the lack of a uniform approach to outcome measurement which limits the potential to compare and combine research studies in order to strengthen treatment evidence. There is a need to develop an international consensus for a core outcome set of swallowing related measures, that capture the holistic impact of dysphagia, for HNC.

Optimising Radiation Therapy Dose to the Swallowing Organs at Risk: An In Silico Study of feasibility for Patients with Oropharyngeal Tumours

Recent evidence suggests that reducing radiotherapy dose delivered to specific anatomical swallowing structures [Swallowing Organs at Risk (SWOARs)] may improve swallowing outcomes post-treatment for patients with head and neck cancer. However, for those patients with tumours of the oropharynx, which typically directly overlap the SWOARs, reducing dose to these structures may be unachievable without compromising on the treatment of the disease. To assess the feasibility of dose reduction in this cohort, standard IMRT plans (ST-IMRT) and plans with reduced dose to the SWOARs (SW-IMRT) were generated for 25 oropharyngeal cancer patients (Brouwer et al. in Radiother Oncol 117(1):83-90, https://doi.org/10.1016/j.radonc.2015.07.041 , 2015; Christianen et al. in Radiother Oncol 101(3):394-402, https://doi.org/10.1016/j.radonc.2011.05.015 , 2011). ST-IMRT and SW-IMRT plans were compared for: mean dose to the SWOARs, volume of pharynx and larynx receiving 50 Gy and 60 Gy (V50 and V60 respectively) and overlap between the tumour volume and the SWOARs. Additionally, two different SWOARs delineation guidelines (Brouwer et al. in Radiother Oncol 117(1):83-90, https://doi.org/10.1016/j.radonc.2015.07.041 , 2015; Christianen et al. in Radiother Oncol 101(3):394-402, https://doi.org/10.1016/j.radonc.2011.05.015 , 2011) were used to highlight differences in calculated volumes between existing contouring guidelines. Agreement in SWOARs volumes between the two guidelines was calculated using a concordance index (CI). Despite a large overlap between the tumour and SWOARs, significant (p < 0.05) reductions in mean dose to 4 of the 5 SWOARs, and V50/V60 for the pharynx and larynx were achieved with SW-IMRT plans. Low CIs per structure (0.15-0.45) were found between the two guidelines highlighting issues comparing data between studies when different guidelines have been used (Hawkins et al. in Semin Radiat Oncol 28(1):46-52, https://doi.org/10.1016/j.semradonc.2017.08.002 , 2018; Brodin et al. in Int J Radiat Oncol Biol Phys 100(2):391-407, https://doi.org/10.1016/j.ijrobp.2017.09.041 , 2018). This study found reducing dose to the SWOARs is a feasible practice for patients with oropharyngeal cancer. However, future prospective research is needed to determine if the extent of dose reduction achieved equates to clinical benefits.

Objective and subjective hyposalivation after treatment for head and neck cancer: Long-term outcomes

OBJECTIVES/HYPOTHESIS

This study examined saliva weight over time and its association with diet and patient-rated swallowing, dry mouth, sticky saliva, and dysgeusia quality of life in head and neck cancer (HNCA) patients treated with surgery plus adjuvant chemoradiotherapy (CRT), or primary CRT.

STUDY DESIGN

Prospective cohort study in an outpatient HNCA center setting.

METHODS

Patients were seen pretreatment, and 1, 3, 6, 12, 24, and 36 + months post-treatment. All had newly diagnosed oral, oropharynx, nasopharynx, larynx/hypopharynx cancer from 2010 to 2016 and were to undergo surgery + CRT or primary CRT. Stimulated saliva weight was assessed with the Saxon test. Diet, eating, dry mouth, and dysgeusia quality of life were assessed and correlated with saliva weight, treatment modality, and tumor site.

RESULTS

Saliva weight decreased the most within the first 3 months across treatment groups, except for the surgery + CRT group, which continued to decline. Similar trends were seen by tumor site. Performance Status Scale (PSS) Normalcy of Diet and all quality-of-life scores declined following treatment. The European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Head and Neck-35 (EORTC QLQ-H&N35); Eating Assessment Tool (EAT-10); M. D. Anderson Dysphagia Inventory (MDADI) Composite, Global, and subdomain scores; and PSS Diet were significantly correlated with saliva weight.

CONCLUSIONS

Saliva weight worsened post-treatment across groups and tumor site, with improvement by 36 + months. Saliva weight correlated with diet, eating quality of life and perception of dysgeusia across time points. Despite dose-sparing intensity-modulated radiation therapy, newer technologies are needed to preserve saliva production and maintain higher quality of life.

LEVEL OF EVIDENCE

2b Laryngoscope, 128:2732-2739, 2018.

Hyperbaric oxygen treatment for the management of radiation-induced xerostomia

INTRODUCTION

Hyperbaric oxygen therapy (HBOT) is widely used for the treatment of the late effects of radiation therapy. We report a prospective observational cohort study of 51 patients designed to examine the effectiveness of hyperbaric oxygen treatment (HBOT) for xerostomia following radiotherapy.

METHODS

Objective (saliva volume) and subjective (quality of life scoring and visual analogue scale (VAS) of discomfort) measurements associated with xerostomia were compared prior to commencement of HBOT, after 30 sessions (over 6 weeks) of HBOT at 243 kPa for 90 minutes daily for five days per week and at 6-week review (12 weeks from commencement).

RESULTS

One hundred and one courses of treatment in 99 patients were examined. For 53 (53%) courses in 51 patients, data were recorded before and after HBOT and so could be included in the analysis. Thirty-four (34%) of these patients had complete data for all three time points. The unit of study was per treatment course, not per person. There were no major complications to HBOT. There was a statistically significant difference in saliva volume following HBOT (P = 0.016). The mean saliva volume increase was 0.9 mL over a 5-min collection period (95% CI 0.2-1.5). There was also a statistically significant improvement in discomfort after HBOT (P < 0.001) and QOL (P < 0.001). The mean visual analogue scale for discomfort (VAS on a 0-10 scale) score decreased by 1.4 units (95% CI 0.7-2.1), whilst the mean QOL score was 10 points lower after treatment (95% CI 5.9-14.4).

CONCLUSION

Hyperbaric oxygen therapy may be a safe and effective treatment for symptoms of xerostomia after radiation therapy and should be considered when available.

Content analysis of rehabilitation goals for patients following non-surgical head and neck cancer treatment

PURPOSE

Following head and neck cancer (HNC) treatment, individuals experience an array of side effects which can impact on physical, emotional, and practical aspects of their lives. Responsive, supportive rehabilitation services are therefore essential to address ongoing survivorship needs. This study examined the nature of patient-reported goals from acute to long-term post-treatment, to inform design/delivery of future rehabilitation services.

METHODS

Using a cross-sectional cohort design, 91 patients between 2 weeks and 5 years of post non-surgical HNC treatment (acute n = 29; sub-acute n = 28; long-term n = 34), provided their top four rehabilitation goals considering any aspect of their lives. Content analysis was used to categorise responses at each time point.

RESULTS

Three core categories of patient goals were identified relating to: (1) treatment side effects (TSE), (2) overall health (OH), and (3) living life (LL). TSE goals were a priority during the acute and sub-acute phases, with less focus long-term. LL goals were prevalent across all time points, though increased in the long-term. Approximately a third of all goals at each time point related to OH.

CONCLUSIONS

A variety of rehabilitation goals were identified, and the focus shifted over time. These data highlight the importance of changing the focus of rehabilitation as patients' priorities vary over time. Early multidisciplinary care from allied health services is crucial to provide support with managing side effects and returning to daily activities. In the long-term, greater input from services to address health, nutrition, leisure, and fitness goals may be more beneficial.