Evaluation of Pharmacotherapy of Cancer Pain in Patients with Head and Neck Cancer at a Tertiary Care Teaching Hospital

ABSTRACT

Background: Head and Neck Cancers (HNC) account for 5% of all malignant tumours, but 80% of patients experience pain. As per the WHO analgesic ladder, analgesics are a cornerstone for the management of pain in HNC patients. Purpose: Our study aims to analyse the prescribing pattern of analgesic drugs in patients with HNC pain. Materials and Methods: A prospective, continuous, observational study was conducted among patients with HNC pain. Demographics, detailed history of pain (type, duration, location and Numerical Rating Scale [NRS] score), details of drugs prescribed and any adverse drug reactions (ADRs) were recorded at baseline visit and at first, second and sixth month followup. Descriptive statistics were used to analyse the above parameters. The mean reduction in NRS was analysed by the Z test. Results: Out of 145 patients, 118 (81.37%) were male and 27 (18.62%) were female. The mean age of patients was 51.89 + 7.07 years. Tramadol (81.37%) followed by morphine (62.75%) were the commonly prescribed analgesics. Amitriptyline (20%) followed by pregabalin (19.31%) were commonly prescribed adjuvant analgesics. A statistically significant reduction in mean NRS was found at each follow-up visit (p < .05). A total of 50 ADRs were observed. Constipation (38%) and drowsiness (24%) were the most frequently reported ADRs, with morphine and tramadol being the most common suspected causal drugs. Conclusion: Tramadol and morphine were frequently prescribed analgesics in patients with HNC pain in accordance with the WHO analgesic ladder. The majority of patients with HNC pain achieved a significant reduction in NRS pain scores at the end of six months.

KEYWORDS

• Head and neck cancer pain
• numerical rating scale
• tramadol
• morphine
• WHO analgesic ladder

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• DOI10.1177/0976500X241246414Copy

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