Post-Stroke Pain Management

Introduction to Post-Stroke Pain

Central post-stroke pain (CPSP) affects 2-5% of stroke patients, resulting from damage to the spinothalamic tract, causing hypersensitivity to pain and sensory abnormalities in the face, arms, and/or legs 1
Spasticity-related pain can result in significant functional disturbances and may lead to contractures if untreated 2

The American College of Physicians recommends anticonvulsants such as gabapentin or pregabalin as first-line treatment for central post-stroke pain, followed by tricyclic antidepressants or SNRIs as second-line options, and opioids or tramadol for treatment-resistant cases 1
Tricyclic antidepressants (e.g., amitriptyline 75mg at bedtime) and SNRIs (particularly duloxetine) are recommended as second-line treatment for central post-stroke pain 4, 5
Opioids or tramadol may be considered for treatment-resistant cases, though caution is advised due to significant risk of physical dependency 1, 4
Lamotrigine can reduce daily pain ratings and cold-induced pain, though only 44% of patients have a good clinical response 5

Non-pharmacological approaches such as antispastic positioning, range of motion exercises, stretching, splinting, and serial casting are recommended for spasticity-related pain 2, 5
Motor cortex stimulation might be reasonable for intractable central post-stroke pain not responsive to other treatments, achieving pain reductions >50% in 50-83% of patients for up to 2 years 1, 5

An individualized patient-centered approach implemented by an interdisciplinary team with expertise in mental health and central pain management is recommended 1, 4
Pharmacotherapy should be combined with therapeutic exercise and psychosocial support 1, 5
Treatment should be adjusted based on the patient's specific pain characteristics, comorbidities, and response to therapy 5

CPSP is often underdiagnosed or misdiagnosed as musculoskeletal or visceral pain 1, 3
Avoid attributing all post-stroke pain to CPSP without excluding other serious causes 1, 3
TENS (transcutaneous electrical nerve stimulation) is not effective for central post-stroke pain and should not be used 5
Be cautious with anticholinergic side effects of amitriptyline, particularly in elderly patients 3