Palliative Pain Management in Cancer Patients

Assessment and Evaluation

• The World Health Organization recommends that all cancer patients be evaluated for the presence of pain at every clinical encounter using standardized self-reporting tools such as visual analog scales (VAS), numerical rating scales (NRS), or verbal rating scales (VRS) 1, 2
• Pain should be characterized by type (nociceptive: somatic or visceral; neuropathic), location, intensity, duration, temporal patterns, and relieving/exacerbating factors 1
• The National Comprehensive Cancer Network recommends assessing the impact of pain on function and quality of life 3

Pharmacologic Management

• The American Society of Clinical Oncology recommends using non-opioid analgesics such as acetaminophen/paracetamol (maximum 4000 mg/day) or NSAIDs for mild pain 2, 4
• The National Comprehensive Cancer Network recommends providing gastroprotection to prevent GI toxicity when using NSAIDs long-term 2, 5
• The American College of Physicians recommends using NSAIDs with caution in patients with renal impairment, heart failure, or hypertension 6

Opioid Administration Principles

• The National Comprehensive Cancer Network recommends providing around-the-clock dosing for persistent pain 6, 7
• The American Society of Clinical Oncology recommends including "breakthrough" doses (typically 10-15% of total daily dose) for transient pain exacerbations 2
• The American Academy of Hospice and Palliative Medicine recommends titrating doses rapidly to achieve pain control 2

Adjuvant Analgesics

• The National Comprehensive Cancer Network recommends considering anticonvulsants, antidepressants, or corticosteroids for neuropathic pain 1
• The American Society of Clinical Oncology recommends using bone-modifying agents (bisphosphonates, denosumab) for bone pain 6

Non-Pharmacologic and Interventional Approaches

• The National Comprehensive Cancer Network recommends considering specialty consultation for interventional pain management when pain is likely to be relieved with intervention 6
• The American Society of Clinical Oncology recommends considering nerve blocks for specific pain syndromes 7
• The American College of Radiology recommends considering vertebral augmentation (vertebroplasty/kyphoplasty) for vertebral pain with instability 8

Special Pain Syndromes

• The National Comprehensive Cancer Network recommends considering radiation therapy for localized bone pain 6
• The American Society of Clinical Oncology recommends considering surgical stabilization for impending fractures 6

Monitoring and Follow-up

• The National Comprehensive Cancer Network recommends obtaining regular pain ratings and documenting in medical records 6
• The American Academy of Hospice and Palliative Medicine recommends adjusting treatment based on changes in pain intensity, side effects, and disease progression 7