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Home-based Application of Sphenopalatine Ganglion Block for Head and Neck Cancer Pain Management.

ABSTRACT: Head and neck cancer pain is intractable and difficult to manage. Many a times it is difficult to treat with oral opioids and adjuvants.This study aims to study the effects of transnasal sphenopalatine ganglion block (SPGB), administered using cotton swab/ear bud by patients' caretaker, at home, for pain management.This is a prospective, single-arm observational study conducted on 100 head and neck cancer patients, from January 2014 to December 2015. Patients and caretaker were given a demonstration of the procedure using sterile cotton swab/ear buds. They were advised to repeat the procedure when their visual analog score (VAS) was more than 5. They continued with the oral analgesics. They kept the records of pre- and post-procedure pain score (VAS), the frequency of repetition, ease of performance of procedure, and morphine requirement. A paired t-test (SPSS software) was used for statistical analysis.A significant reduction in pain was noted by a decrease in mean VAS from 8.57 ± 1.31 to 2.46 ± 1.23 (P < 0.0001), immediately on first administration. The mean duration of analgesia was 4.95 ± 3.43 days. Pre- and post-procedure mean morphine requirement were 128.2 ± 84.64 and 133.8 ± 81.93 (P > 0.05) mg per day, at the end of 2 months. Ease of performance was observed in 88 patients.The home-based application of SPGB is an easy, safe, and cost-effective method to manage cancer pain. It provides excellent immediate pain relief with a minimum side effect. It can be performed bilaterally, repeatedly and even with a feeding tube in place.

SUBMITTER: Sanghavi PR

PROVIDER: S-EPMC5545953 | biostudies-other | 2017 Jul-Sep

REPOSITORIES: biostudies-other

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Intravenous fluids for pain management in head and neck cancer patients undergoing chemoradiation.

Project description:BackgroundPain due to oral mucositis affects the majority of patients receiving chemoradiation (CRT) for head and neck cancer (HNC), and often results in dehydration. Anecdotally, intravenous (IV) fluids administered during treatment for the resultant dehydration was found to alleviate this pain. The purpose of this retrospective study was to evaluate the effectiveness of IV fluids as a method pain management in this patient population.MethodsPatients with oral mucositis pain, secondary to CRT for HNC, were given IV fluids according to standard clinic protocol. Patients were evaluated using orthostatic vital signs and prospectively surveyed pre- and post-IV fluid administration, which included the Visual Analog Scale (VAS) for pain. Difference in pain pre- and post-IV fluid administration was evaluated using a two-tailed paired Student's t-test.ResultsTwenty-four patients with a total of 31 fluid administrations was available for analysis. Twenty-three patients were receiving or had recently completed CRT. One patient was receiving radiation alone. Six instances of fluid administration were excluded due to: refusal to complete the survey, concurrent pulmonary embolism, concurrent pain medication, and drug seeking behavior. Average pain score decreased from 6.5 [standard deviation (SD) 2.1] prior to IV fluids to 4.0 (SD 2.4) following fluid administration (P<0.001).ConclusionsTo our knowledge, this is the first report directly correlating IV fluid administration with pain relief, even in the absence of orthostasis. Our findings indicate that in patients undergoing CRT for HNC, the use of IV fluids alone was effective in acutely and significantly reducing pain secondary to oral mucositis.

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Effect of Acupuncture in Pain Management of Head and Neck Cancer Radiotherapy: Prospective Randomized Unicentric Study.

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Feasibility of a supervised and home-based tailored exercise intervention in head and neck cancer patients during chemoradiotherapy.

Project description:ObjectiveChemoradiotherapy (CRT) for head and neck cancer (HNC) is associated with high toxicity that adversely affects physical functioning, body composition, fatigue, quality of life and treatment outcomes. Exercise interventions during treatment might counteract these negative effects. We therefore assessed the feasibility of an exercise programme for HNC patients during CRT.MethodsForty patients were offered a tailored 10-week endurance and resistance training with supervised and home-based sessions. Feasibility endpoints were (1) adherence (main outcome): ≥60% attendance; (2) recruitment: ≥30%; (3) retention rate: ≥85% and (4) compliance rate: ≥60%. Physical performance, muscle strength, body composition, quality of life and fatigue were assessed pre- and post-intervention.ResultsOverall adherence was 54%. The recruitment rate was 36%, and the retention rate was 65%. Compliance to the supervised intervention protocol was 66%. Statistically significant decreases were found in mean grip strength, fat-free mass and clinically relevant deteriorations on several domains of quality of life, and fatigue subscales were found.ConclusionWe conclude that this exercise programme for HNC patients during CRT in its current form is feasible for only a minority of patients. We suggest adaptations to improve adherence and retention rates for a definitive multicentre trial.Trial registrationThis study is registered at the Netherlands Trial Register (NTR7305), 6 June 2018, retrospectively registered.

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Adenosine triphosphate drives head and neck cancer pain through P2X2/3 heterotrimers.

Project description:Cancer pain creates a poor quality of life and decreases survival. The basic neurobiology of cancer pain is poorly understood. Adenosine triphosphate (ATP) and the ATP ionotropic receptor subunits, P2X2 and P2X3, mediate cancer pain in animal models; however, it is unknown whether this mechanism operates in human, and if so, what the relative contribution of P2X2- and P2X3-containing trimeric channels to cancer pain is. Here, we studied head and neck squamous cell carcinoma (HNSCC), which causes the highest level of function-induced pain relative to other types of cancer.We show that the human HNSCC tissues contain significantly increased levels of ATP compared to the matched normal tissues. The high levels of ATP are secreted by the cancer and positively correlate with self-reported function-induced pain in patients. The human HNSCC microenvironment is densely innervated by nerve fibers expressing both P2X2 and P2X3 subunits. In animal models of HNSCC we showed that ATP in the cancer microenvironment likely heightens pain perception through the P2X2/3 trimeric receptors. Nerve growth factor (NGF), another cancer-derived pain mediator found in both human and mouse HNSCC, induces P2X2 and P2X3 hypersensitivity and increases subunit expression in murine trigeminal ganglion (TG) neurons.These data identify a key peripheral mechanism in cancer pain and highlight the clinical potential of specifically targeting nociceptors expressing both P2X2 and P2X3 subunits (e.g., P2X2/3 heterotrimers) to alleviate cancer pain.

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Project description:Although surgical resection has been the primary treatment modality of solid tumors for decades, surgeons still rely on visual cues and palpation to delineate healthy from cancerous tissue. This may contribute to the high rate (up to 30%) of positive margins in head and neck cancer resections. Margin status in these patients is the most important prognostic factor for overall survival. In addition, second primary lesions may be present at the time of surgery. Although often unnoticed by the medical team, these lesions can have significant survival ramifications. We hypothesize that real-time fluorescence imaging can enhance intraoperative decision making by aiding the surgeon in detecting close or positive margins and visualizing unanticipated regions of primary disease. The purpose of this study was to assess the clinical utility of real-time fluorescence imaging for intraoperative decision making. Methods: Head and neck cancer patients (n = 14) scheduled for curative resection were enrolled in a clinical trial evaluating panitumumab-IRDye800CW for surgical guidance (NCT02415881). Open-field fluorescence imaging was performed throughout the surgical procedure. The fluorescence signal was quantified as signal-to-background ratios to characterize the fluorescence contrast of regions of interest relative to background. Results: Fluorescence imaging was able to improve surgical decision making in 3 cases (21.4%): identification of a close margin (n = 1) and unanticipated regions of primary disease (n = 2). Conclusion: This study demonstrates the clinical applications of fluorescence imaging on intraoperative decision making. This information is required for designing phase III clinical trials using this technique. Furthermore, this study is the first to demonstrate this application for intraoperative decision making during resection of primary tumors.

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State-of-the-art management of locally advanced head and neck cancer.

Project description:During the past 20 years, treatments for head and neck squamous cell carcinoma (HNSCC) have changed dramatically owing largely to the advent of novel approaches such as combined modality therapy as well as improvements in surgical and radiotherapeutic techniques. Locally advanced disease in particular, which engendered very high recurrence and mortality rates, is now associated with long-term disease-free survival in the majority of cases. This article will focus on locally advanced HNSCC, which frequently remains a clinical challenge, review state-of-the-art therapy, and introduce promising novel therapies. The field continues to evolve rapidly with new evidence during the past year clearly establishing the benefit of adjuvant chemoradiotherapy (CRT), as well as early evidence showing improved survival with the use of an epidermal growth factor receptor inhibitor in combination with radiotherapy. There are varied regimens in use for patients with locally advanced disease, but at the same time the multitude of options can plague the clinician when trying to select the most appropriate one. This article will attempt to put the various approaches into perspective and propose an evidence-based treatment algorithm.

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Mechanisms of pain and their manifestations in head and neck cancer: Importance of classifying pain subtypes.

Project description:BackgroundPain is an under-recognized complaint among head and neck cancer (HNC) survivors. Treatment is hindered by inadequate characterization of pain.MethodsA secondary analysis from a prospective, longitudinal study was conducted to characterize pain prevalence, quality, and functional consequences in 77 HNC patients. Pain and pain-related outcomes were captured before treatment, at end-of-treatment, and 3, 6, 9 and 12 months post-treatment.ResultsPain was most prevalent at end-of-treatment and declined over time. Chronicity of pain was established by 6 months post-treatment. Oral mucosal neuropathic pain was the most common chronic pain subtype at 12 months post-treatment. Widespread joint and muscle pain was also present at lower numbers. 40.2% of patients continued to require analgesics at 12 months.ConclusionPeripheral and central pain subtypes contribute significantly to chronic pain in HNC survivors. Preventive and treatment regimens should be tailored to specific pain subtypes for optimal symptom control.

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