Prevalence and Correlates of Supportive Care Needs in Oral Cancer Patients With and Without Anxiety During the Diagnostic Period

HPV+ head and neck cancer-derived small extracellular vesicles communicate with TRPV1+ neurons to mediate cancer pain

ABSTRACT

Severe pain is often experienced by patients with head and neck cancer and is associated with a poor prognosis. Despite its frequency and severity, current treatments fail to adequately control cancer-associated pain because of our lack of mechanistic understanding. Although recent works have shed some light of the biology underlying pain in HPV-negative oral cancers, the mechanisms mediating pain in HPV+ cancers remain unknown. Cancer-derived small extracellular vesicles (cancer-sEVs) are well positioned to function as mediators of communication between cancer cells and neurons. Inhibition of cancer-sEV release attenuated pain in tumor-bearing mice. Injection of purified cancer-sEVs is sufficient to induce pain hypersensitivity in naive mice that is prevented by QX-314 treatment and in Trpv1-/- mice. Cancer-sEVs triggered calcium influx in nociceptors, and inhibition or ablation of nociceptors protects against cancer pain. Interrogation of published sequencing data of human sensory neurons exposed to human cancer-sEVs suggested a stimulation of protein translation in neurons. Induction of translation by cancer-sEVs was validated in our mouse model, and its inhibition alleviated cancer pain in mice. In summary, our work reveals that HPV+ head and neck squamous cell carcinoma-derived sEVs alter TRPV1+ neurons by promoting nascent translation to mediate cancer pain and identified several promising therapeutic targets to interfere with this pathway.

Evaluation of a supportive care app for coordinating caring networks: an analysis of the first 19,000 users

Background

Major illnesses such as cancer, and other traumatic life events, can lead to sudden increases in supportive care needs. This study aimed to describe engagement, acceptability and satisfaction with a supportive care networking app under real-world conditions.

Methods

A total of 10,952 individuals used the app during the study period (2018-2022). The app is designed to enable "captains" to assemble a network of friends and family members to provide timely, and individually tailored, supportive care (including assistance with tasks such as taking children to school, cooking meals, grocery shopping, and transport to appointments). Engagement was determined from server data, whilst acceptability and satisfaction were captured using purposed-designed surveys.

Results

Users were mostly female (76%) and aged between 30 and 49 years (61%). The most common reason for using the app was sudden illness (web: 81%; mobile: 64%). An average of 42 tasks were requested per network, with a 32% acceptance rate. Significantly more tasks were requested (web: 52.2 tasks per network; mobile: 31.7 tasks per network; p < 0.001) and accepted (web: 43.2%; mobile: 20.2%; p < 0.001) in the web app vs. the mobile app. Task requests in the web app most commonly related to food (43% of requested tasks), social (15% of requested tasks) and children (13% of requested tasks). The task acceptance rate differed by task categories (p < 0.001), with tasks relating to transport, medical appointments and children accepted at the highest rates (56%, 52% and 49%, respectively). Acceptability and satisfaction data suggested that the app was well received and overall, participants were satisfied with the app.

Conclusion

Findings suggested that this support care networking app achieved widespread uptake for a wide variety of supportive care tasks. Future research focused on optimizing engagement with the mobile app and examining the effectiveness of the app for improving patient and hospital outcomes is warranted.

Enhancing patient participation of older migrant cancer patients: needs, barriers, and eHealth

OBJECTIVES

To gain insight into (1) the unfulfilled instrumental and affective needs of Turkish-Dutch and Moroccan-Dutch older cancer patients/survivors, (2) the barriers perceived by healthcare professionals in fulfilling these needs, and (3) how the Health Communicator, a multilingual eHealth tool, can support the fulfillment of patients'/survivors' needs, and decrease professionals' barriers.

DESIGN

We conducted a pre-implementation study of the Health Communicator using semi-structured interviews with Turkish-Dutch (n = 10; mean age = 69.10) and Moroccan-Dutch (n = 9; mean age = 69.33) older cancer patients/survivors, and held two focus groups with general practitioners (GPs; n = 7; mean age 45.14) and oncology nurses (ONs; n = 5; mean age = 49.60). Topic list consisted of questions related to needs and perceived barriers. Analysis was based on grounded theory. The acceptance of the Health Communicator was inquired by questions based on the concepts of the Technology Acceptance Model, and analyzed deductively.

RESULTS

Patients/survivors reported unfulfilled needs concerning: (1) information about cancer (treatment), (2) information about the healthcare system, (3) possibilities regarding psychosocial support, and (4) doctor-patient relationship. Among professionals, the main perceived barriers were: (1) patients'/survivors' low health literacy and language barrier, (2) cultural taboo, (3) lack of insight into patients' instrumental needs, and (4) patients'/survivors' lack of trust in Dutch healthcare. Both patients/survivors and professionals thought that implementing the Health Communicator could be effective in fulfilling most of the needs and decreasing the barriers. However, a majority of the patients/survivors were hesitant regarding the use of it, because they found it too difficult to use. Professionals showed a positive intention towards using the Health Communicator.

CONCLUSIONS

To enhance patient participation among older migrant cancer patients/survivors, the Health Communicator is, under certain conditions, a promising tool for fulfilling patients'/survivors' unfulfilled instrumental and affective needs and for bridging barriers perceived by professionals.

A Novel Syngeneic Immunocompetent Mouse Model of Head and Neck Cancer Pain Independent of Interleukin-1 Signaling

BACKGROUND

Pain is one of the first presenting symptoms in patients with head and neck cancer, who often develop chronic and debilitating pain as the disease progresses. Pain is also an important prognostic marker for survival. Unfortunately, patients rarely receive effective pain treatment due to our limited knowledge of the mechanisms underlying head and neck cancer pain (HNCP). Pain is often associated with neuroinflammation and particularly interleukin (IL)-1 signaling. The purpose of this study is to develop a novel syngeneic model of HNCP in immunocompetent mice to examine the contribution of IL-1 signaling.

METHODS

Male C57BL/6 mice were injected with a murine model of human papillomavirus (HPV+)-induced oropharyngeal squamous cell carcinoma in their right hindlimb to induce tumor growth. Pain sensitivity was measured via von Frey filaments. Spontaneous pain was assessed via the facial grimace scale. IL-1β was measured by quantifying gene expression via quantitative polymerase chain reaction (qPCR) and enzyme-linked immunosorbent assay (ELISA).

RESULTS

Pain hypersensitivity and spontaneous pain develop quickly after the implantation of tumor cells, a time when tumor volume is still insignificant. Spinal and circulating IL-1β levels are significantly elevated in tumor-bearing mice. Blocking IL-1 signaling either by intrathecal administration of interleukin-1 receptor antagonist (IL-1ra) or by genetic deletion (interleukin-1 receptor knockout [Il1r1-/-]) does not alleviate HNCP.

CONCLUSIONS

We established the first syngeneic model of HNCP in immunocompetent mice. Unlike inflammatory or nerve-injured pain, HNCP is independent of IL-1 signaling. These findings challenge the common belief that pain results from tissue compression or IL-1 signaling in patients with head and neck cancer.

Evaluating the Effects of a Mobile Health App on Reducing Patient Care Needs and Improving Quality of Life After Oral Cancer Surgery: Quasiexperimental Study

BACKGROUND

Intervention with a mobile Health (mHealth) app can improve the efficacy of early detection of oral cancer and the outcomes for patients taking oral anticancer medications. The quality of life of oral cancer patients is significantly reduced within three months after surgery; also, their needs for nursing care and health information increase, mainly due to side effects and associated psychological problems.

OBJECTIVE

This study aimed to evaluate changes in the care needs and quality of life of patients with oral cancer after receiving the intervention of a newly developed mHealth app.

METHODS

After surgery, oral cancer patients were divided into an experimental group (n=50) who received the mHealth app intervention and a control group (n=50) who received routine health care and instruction. After 3 months of intervention, survey questionnaires were used to assess the patients' quality of life, nursing care needs, and acceptance of the mHealth app.

RESULTS

The physiological care needs were significantly decreased in the experimental group compared with the control group (P<.05). Although the differences were not statistically significant, the psychological needs, communication needs, and care support needs all improved after the mHealth app intervention. The overall improvement in quality of life was higher in the experimental group than in the control group (-7.24 vs -4.36). In terms of intention to use, perceived usefulness, and perceived ease of use, the acceptability scores of the mHealth app were significantly increased after 3 months of intervention (P<.05).

CONCLUSIONS

Compared with routine health care and instruction, for patients after surgery, the education/information intervention using the mHealth app significantly reduced their nursing care needs, improved their quality of life, and increased their acceptance of using an mHealth app on a mobile device. These findings can provide a theoretical basis for future health care app design and improvement. This study suggests that an mHealth app should be incorporated into the routine care of oral cancer patients to provide medical information quickly and improve their self-management abilities, thereby reducing the patients' need for physiological care and improving their quality of life.

TRIAL REGISTRATION

ClinicalTrials.gov NCT04049968; https://www.clinicaltrials.gov/ct2/show/NCT04049968.

Content comparison of unmet needs self-report measures used in patients with head and neck cancer: A systematic review

OBJECTIVE

Morbidity from head and neck cancers (HNCs) and their treatment are significant, given their proximity to anatomical sites impacting facial appearance and function. Assessing the needs of HNC patients throughout their cancer journey is critical to informing quality care and improving quality of life. We aimed to identify available unmet needs measures in the HNC setting and appraise their content and psychometric properties.

METHODS

We conducted a systematic search of five electronic databases (July 2007-July 2019) to identify studies of unmet needs in patients with HNC. In addition, three web-based patient-reported outcome measures (PROMs) databases were searched for unmet needs measures. Citations were screened for eligibility and identified measures reviewed for content coverage and psychometric properties. From identified measures and literature, a conceptual framework with 12 clinically relevant aspects of unmet needs was developed and used to assess the conceptual coverage of available unmet needs measures.

RESULTS

Literature search identified 273 records of which 28 studies assessing unmet needs in HNC cancer met eligibility criteria. Seven unmet needs measures were identified from retrieved studies and seven additional measures from PROM databases. Thus, 14 measures in total were reviewed. Content mapping revealed that three measures demonstrated excellent content validity (greater than 80% conceptual coverage): Patient Concerns Inventory (PCI), Needs Assessment for Advanced Cancer Patients (NA-ACP), and James Supportive Care Screening (JSCS).

CONCLUSION

We recommend PCI be used to measure unmet needs in the HNC setting considering the importance of content validity over quantitative psychometric properties.

Factors associated with continued smoking after treatment of oral cavity cancer: An age and survival time-matched study

AIMS

The aims of this study of people with oral cavity cancer were to compare the social support, depression, nicotine dependence, physical function and social-emotional function of those who continued smoking with those who quit smoking, by matching age and survival time and to identify the predictors of continued smoking during the survival period.

BACKGROUND

People who continue to smoke after cancer treatment may have an impact on treatment response and survival.

DESIGN

A cross-sectional survey was conducted.

METHODS

This study compared 92 people with oral cavity cancer who continued smoking with 92 people who quit smoking, with matching for age and survival time between January 2015 - November 2015. Conditional logistic regression analysis was used to compare the two groups.

RESULTS

The quit smoking group had significantly more social support, less depression and greater social-emotional function than the continued smoking group. People who were unmarried, received surgery without reconstruction, had poor social support and had poor social-emotional function were more likely to continue smoking.

CONCLUSIONS

People with oral cavity cancer were more likely to continue smoking after the treatment if they had low social support, depression, greater nicotine dependence and poor social-emotional function. Healthcare professionals should pay more attention to social support, psychological status and nicotine dependence of people who were treated for oral cavity cancer.

Associations between neighbourhood support and financial burden with unmet needs of head and neck cancer survivors

PURPOSE

To assess the unmet needs of head and neck cancer survivors and investigate associated factors. In particular, to explore whether social support (family/friends and neighbours) and financial burden are associated with unmet needs of head and neck cancer (HNC) survivors.

METHODS

This was a cross-sectional study of HNC survivors, with 583 respondents included in the analysis. Information was collected on unmet supportive care needs as measured by the Supportive Care Needs Survey (SCNS-SF34). Poisson regression with robust standard errors was used to examine factors associated with having one or more needs in each of the five domains (physical; psychological; sexuality; patient care and support; and health system and information).

RESULTS

The mean age of respondents was 62.9years (standard deviation 11.3years) and one third of respondents were female. The top ten unmet needs was composed exclusively of items from the physical and psychological domains. Financial strain due to cancer and finding it difficult to obtain practical help from a neighbour were both associated with unmet needs in each of the five domains, in the adjusted analyses.

CONCLUSION

Whilst in each domain, a minority of respondents have unmet needs, approximately half of respondents reported at least one unmet need, with the commonest unmet needs in the psychological domain. Providing services to people with these needs should be a priority for healthcare providers. We suggest that studies, which identify risk factors for unmet needs, could be used to develop screening tools or aid in the targeting of support.

Palliative care needs at different phases in the illness trajectory: a survey study in patients with cancer

Despite the growing consensus on the benefits of initiating palliative care early in the disease trajectory, it remains unclear at what point palliative care needs emerge. This study investigates quality of life and unmet palliative care needs at three phases in the cancer trajectory, curative, life-prolonging and most advanced (prognosis <6 months/no further disease-modifying treatment). We collected self-reported data from 620 patients with cancer in the University Hospital of Ghent, Belgium. They completed a questionnaire on quality of life (using the EORTC QLQ-C30) and unmet care needs within the domains of palliative care. We used European reference values of the EORTC QLQ-C30 to compare the mean scores with a norm group. The groups further on in the cancer trajectory reported statistically and clinically poorer functioning compared with earlier phases, also when controlled for the effects of sex, age or type of cancer. Higher symptom burdens for fatigue, pain, dyspnoea and appetite loss were found in groups further into the trajectory, p < .001. Patients in the curative phase experienced physical symptoms and had clinically worse functioning than a European reference group. This paper demonstrates the ongoing need for oncologists to address the broader palliative care needs of patients from diagnosis onwards.

The use of health related quality of life data to produce information sheets for patients with head and neck cancer

INTRODUCTION

Health related quality of life information gives patients and carers an indication of how they will be affected following treatment. Such knowledge can promote realistic expectations and help patients come to terms with their outcome. The aim of this paper is to describe the background development of patient information sheets produced at our unit.

METHODS

The data were compiled using a common head and neck cancer specific quality of life questionnaire (University of Washington Quality of Life [UW-QOL]). There are 12 domains comprising activity, appearance, anxiety, chewing, mood, pain, recreation, saliva, shoulder, speech, swallowing and taste. The data were collected over 19 years at our unit and focus on follow-up records at around 2 years as this gives a good indication of health related quality of life in survivorship. UW-QOL questionnaires were available from 1,511 patients treated following primary diagnosis of head and neck cancer, and there were 24 subgroups based on cancer site, stage and treatment. There were 2 other subgroups: 132 having transoral laser resection and 176 having laryngectomy.

RESULTS

The patient and carer research forum helped to design the information sheets, which display overall quality of life, percentages with 'good' outcome and 'significant problem' by domain, and the most important domains. Three examples are included in this paper: early stage oral cancer treated by surgery alone, early laryngeal cancer treated by surgery alone, and late stage oropharyngeal cancer treated by surgery and postoperative radiotherapy. All 26 subgroup information sheets are available in booklet form and on the internet.

CONCLUSIONS

How the surgical community best utilises this type of resource needs further research.

Influence of pain severity on the quality of life in patients with head and neck cancer before antineoplastic therapy

Background

The aim of this study was to assess the severity of pain and its impact on the quality of life (QoL) in untreated patients with head and neck squamous cell carcinoma (HNSCC).

Methods

A study group of 127 patients with HNSCC were interviewed before antineoplastic treatment. The severity of pain was measured using the Brief Pain Inventory (BPI) questionnaire, and the QoL was assessed with the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core-30 (EORTC QLQ-C30) and the head and neck module (QLQ-H&N35).

Results

The mean age of the patients was 57.9 years, and there was a predominance of men (87.4%). The most frequent site of the primary tumor was the oral cavity (70.6%), and the majority of the patients had advanced cancers (stages III and IV). QoL in early stage of cancer obtained better scores. Conversely, the patients with advanced stage cancer scored significantly higher on the symptom scales regarding fatigue, pain, appetite loss and financial difficulties, indicating greater difficulties. Regard to the severity of pain, patients with moderate-severe pain revealed a significantly worse score than patients without pain.

Conclusions

The severity of pain is statistically related to the advanced stages of cancer and directly affects the QoL. An assessment of the quality of life and symptoms before therapy can direct attention to the most important symptoms, and appropriate interventions can then be directed toward improving QoL outcomes and the response to treatment.

Psychometric properties of the Persian version of the Mishel's Uncertainty in Illness Scale in patients with cancer

PURPOSE

Uncertainty is a major component in the illness experiences which extraordinarily can affect the psychological adjustment and the illness outcomes. Uncertainty in illness is defined as inability to define the illness-related events to the illness or disability in predicting the illness outcomes. The present study aimed to translate the Persian version of Uncertainty in Illness Scale (MUIS-A) and to investigate its psychometric properties on patients with cancer.

METHOD

In this methodological study, validation of the Persian version of MUIS-A was performed in Iran on 420 cancer patients attending two major hospitals in Tehran, Iran. The scale was translated into Persian and back translated into English and revised according to editorial comments of the scale designers. Then, content and face validity, construct validity, internal consistency reliability and stability of the Persian version were measured. Data were analyzed using SPSS version 16 and LISREL 8.5.

RESULTS

Mean of the participants MUIS-A score was 90.1 (16.8). Confirmatory factor analysis confirmed validity of the whole instrument and its four subscales. The consistency of the instrument with a three-week interval was r = 0.91. Cronbach's alpha was 0.89 for the whole scale of 32 MUIS-A items and α = 0.58-0.86 for its four factors.

CONCLUSIONS

The Persian version of the MUIS-A has good psychometric properties. It can be used to assess uncertainty in illness in Iranian patients with cancer.

Head and neck cancer patients want us to support them psychologically in the posttreatment period: Survey results

OBJECTIVES

No study systematically has investigated the supportive care needs of general head and neck cancer patients using validated measures. These needs include physical and daily living needs, health system and information needs, patient care and support needs, psychological needs, and sexuality needs. Identifying the unmet needs of head and neck cancer patients is a necessary first step to improving the care we provide to patients seen in our head and neck oncology clinics. It is recommended as the first step in intervention development in the Pan-Canadian Clinical Practice Guideline of the Canadian Partnership Against Cancer (see Howell, 2009). This study aimed to identify: (1) met and unmet supportive care needs of head and neck cancer patients, and (2) variability in needs according to demographics, disease variables, level of distress, and quality-of-life domains.

METHODS

Participants were recruited from the otolaryngology-head and neck surgery clinics of two university teaching hospitals. Self-administered questionnaires included sociodemographic and medical questions, as well as validated measures such as the Supportive Care Needs Survey-Short Form (SCNS-SF34), the Hospital Anxiety and Depression Scale (HADS), and the Functional Assessment of Cancer Therapy-General (FACT-G) and Head and Neck Module (FACT-H&N) (quality of life measures).

RESULTS

One hundred and twenty-seven patients participated in the survey. 68% of them experienced unmet needs, and 25% revealed a clinically significant distress level on the HADS. The highest unmet needs were psychological (7 of top 10 needs). A multiple linear regression indicated a higher level of overall unmet needs when patients were divorced, had a high level of anxiety (HADS subscale), were in poor physical condition, or had a diminished emotional quality of life (FACT-G subscales).

SIGNIFICANCE OF RESULTS

The results of this study highlight the overwhelming presence of unmet psychological needs in head and neck cancer patients and underline the importance of implementing interventions to address these areas perceived by patients as important. In line with hospital resource allocation and cost-effectiveness, one may also contemplate screening patients for high levels of anxiety, as well as target patients who are divorced and present low levels of physical well-being, as these patients may have more overall needs to be met.

Review of clinical medicine and religious practice

The purpose was to evaluate faith-based studies within the medical literature to determine whether there are ways to help physicians understand how religion affects patients’ lives and diseases. We reviewed articles that assessed the influence of religious practices on medicine as a primary or secondary variable in clinical practice. This review evaluated 49 articles and found that religious faith is important to many patients, particularly those with serious disease, and patients depend on it as a positive coping mechanism. The findings of this review can suggest that patients frequently practice religion and interact with God about their disease state. This spiritual interaction may benefit the patient by providing comfort, increasing knowledge about their disease, greater treatment adherence, and quality of life. The results of prayer on specific disease states appear inconsistent with cardiovascular disease but stronger in other disease states.

Psychological factors associated with head and neck cancer treatment and survivorship: evidence and opportunities for behavioral medicine

Individuals diagnosed with head and neck cancer (HNC) not only face a potentially life-threatening diagnosis but must endure treatment that often results in significant, highly visible disfigurement and disruptions of essential functioning, such as deficits or complications in eating, swallowing, breathing, and speech. Each year, approximately 650,000 new cases are diagnosed, making HNC the 6th most common type of cancer in the world. Despite this, however, HNC remains understudied in behavioral medicine. In this article, the authors review available evidence regarding several important psychosocial and behavioral factors associated with HNC diagnosis, treatment, and recovery, as well as various psychosocial interventions conducted in this patient population, before concluding with opportunities for behavioral medicine research and practice.

The value of quality-of-life questionnaires in head and neck cancer

PURPOSE OF REVIEW

To review the recent literature on health-related quality of life (HRQOL) in head and neck cancer (HNC) patients.

RECENT FINDINGS

HRQOL is an important part of well designed clinical trials. HRQOL seems to be an independent predictor of survival, but this association may be influenced by various cancer-related, personal, biological, psychobehavioural, physical, lifestyle-related, and social factors. Less is known about the course of HRQOL over time and about the same above-mentioned possible factors associated with (change in) HRQOL of HNC patients. Symptom management and psychosocial care may be beneficial for HNC patients to improve HRQOL, but more randomized controlled trials are needed. Studies on HRQOL in HNC are most often based on cross-sectional designs. The variability in the outcome measures hampers the generalizability of the results of these studies. Information on HRQOL of caregivers is scarce.

SUMMARY

Better information on all aspects of the course of HRQOL from diagnosis and treatment to long-term survivorship or death is highly needed in both patients and their caregivers, enabling reliable and valid predictive modelling. More evidence of efficacy of (new) treatment options, symptom management, and psychosocial care is needed, also in the context of increasing long-term survival and growing attention for cancer survivorship.

The unfulfilled promise: a systematic review of interventions to reduce the unmet supportive care needs of cancer patients

PURPOSE

This review aimed to examine (a) trends in the number of publications on unmet needs over time and (b) the effectiveness of interventions designed to reduce unmet needs among cancer patients.

METHODS

An electronic literature search of Medline to explore trends in the number of publications on patients' unmet needs and an additional literature search of Medline, CINAHL, PsychINFO, and Web of Science databases to identify methodologically rigorous research trials that evaluated interventions to reduce unmet needs were conducted.

RESULTS

Publications per year on unmet needs have increased over time, with most being on descriptive research. Nine relevant trials were identified. Six trials reported no intervention effect. Three trials reported that intervention participants had a lower number of unmet needs or lower unmet needs score, compared to control participants. Of these, one study found that the intervention group had fewer supportive care needs and lower mean depression scores; one study found that intervention participants with high problem-solving skills had fewer unmet needs at follow-up; and one study found an effect in favor of the intervention group on psychological need subscale scores.

CONCLUSIONS

Reasons for varying results across trials and the limited effectiveness of unmet needs interventions are more broadly discussed. These include inadequacies in psychometric rigor, problems with scoring methods, the use of ineffective interventions, and lack of adherence to intervention protocols.

Do patients' information needs decrease over the course of radiotherapy?

PURPOSE

We aimed to investigate if cancer patients' information needs decrease during radiotherapy and if so, which patient, consultation and radiation oncologist characteristics are associated with a decrease in information needs over time.

METHODS

In this longitudinal study, patients (n = 104) completed a baseline questionnaire a week before the initial radiotherapy consultation, immediately following this initial consultation, and 1 week prior to the first follow-up visit, which took place on average 3-5 weeks after the initial visit. Besides information needs, measured by the Information Preference for Radiotherapy Patients scale, the questionnaire assessed patient, consultation and radiation oncologist characteristics.

RESULTS

Information needs decreased over time, but remained at a high level. Being religious, being male, having low health literacy and higher perceived involvement during the consultation were all statistically significantly associated to a decrease in information needs on specific domains (e.g. procedures or side effects).

CONCLUSIONS

Cancer patients' information needs decline between the initial consultation and the first follow-up visit, but remain high. It is therefore advised to investigate the patients' information needs at every radiotherapy visit and not rely on giving information just once. Furthermore, radiation oncologists should check if the information given at first consultation is understood and remembered. By those means, tailored information giving becomes possible.

Biologic mechanisms of oral cancer pain and implications for clinical therapy

Cancer pain is an ever-present public health concern. With innovations in treatment, cancer patients are surviving longer, but uncontrollable pain creates a poor quality of life for these patients. Oral cancer is unique in that it causes intense pain at the primary site and significantly impairs speech, swallowing, and masticatory functions. We propose that oral cancer pain has underlying biologic mechanisms that are generated within the cancer microenvironment. A comprehensive understanding of key mediators that control cross-talk between the cancer and peripheral nervous system, and possible interventions, underlies effective cancer pain management. The purpose of this review is to explore the current studies on oral cancer pain and their implications in clinical management for cancer pain in general. Furthermore, we will explore the endogenous opioid systems and novel cancer pain therapeutics that target these systems, which could solve the issue of opiate tolerance and improve quality of life in oral cancer patients.