A critical appraisal of gabapentinoids for pain in cancer patients

Head and Neck Cancer-Related Pain

Pain is a common and most debilitating symptom of head and neck cancers (HNC). The prevalence of pain in HNC is nearly 70%. There are no universally accepted classification or diagnostic criteria for HNC-related pain, and currently, HNC-related pain is classified based on the underlying pathophysiological mechanism, the location of the tumor, and the protagonist of pain. The clinical presentation of HNC-related pain varies and can be similar to primary pain disorders. The management of HNC-related pain primarily consists of pharmacotherapy. However, in some cases, interventions may be needed. This article will present a case study and review the epidemiology, diagnostic criteria and classification, clinical features, pathophysiology, and HNC-related pain management.

Treatment of Neuropathic Pain Directly Due to Cancer: An Update

Simple Summary

This review discusses treatment approaches for providing pain relief to oncological patients affected by pain caused by nerve damage due to the tumor, also known as neuropathic cancer pain. Although being encountered often and causing a relevant burden to these patients, neuropathic cancer pain remains still difficult to diagnose and treat. Strong evidence about the best drugs to be used remain limited, as do therapeutic choices.

Abstract

Neuropathic pain can be defined as pain related to abnormal somatosensory processing in either the peripheral or central nervous system. In this review article, with neuropathic cancer pain (NCP), we refer to pain due to nervous tissue lesions caused by the tumor or its metastases. Nervous tissue damage is the cause of cancer pain in approximately 40% of those experiencing cancer pain. Recognizing a neuropathic pathophysiology in these cases may be difficult and requires specific criteria that are not homogenously applied in clinical practice. The management of this type of pain can be challenging, requiring the use of specific non-opioid adjuvant drugs. The majority of the criteria for NCP diagnosis and management have been based mainly on results from the noncancer population, risking the failure of addressing the specific needs of this population of patients. In this review, we summarize current management options available for NCP and provide some insights on new promising treatments.

Acute Pain Management Following Head and Neck Surgery

Acute pain management following major head and neck (HN) surgery is complex. Multimodal analgesia (MMA) regimens including acetaminophen, nonsteroidal anti-inflammatory drugs, gabapentinoids, and locoregional anesthetics are safe and effective in this population (including patients undergoing HN free flap surgery). Special considerations for patients undergoing HN free flap surgery include judicious use of steroids and attention to donor site pain. Evidence for specific analgesic regimens following transoral robotic surgery is limited but should include MMA and perioperative dexamethasone. Further study is required to optimize combinations, dosages, and duration of perioperative analgesia medications, opioid and nonopioid, for patients undergoing major HN surgery.