Chronic Pain Management Flashcards
(50 cards)
What is pain?
Chronic pain is defined as pain lasting > 12 weeks or > 3 months
Somatic Pain
Pain arising from damage to muscle, bone, or skin; well-localized
What are some descriptors of somatic pain?
Sharp, intense, throbbing, localized
Visceral Pain
Pain arising from damage to organs; not well localized – can be referred
What are some descriptors of visceral pain?
Gnawing, cramping, squeezing, diffuse, distant
Neuropathic pain
Pain arising from a lesion or disease of the somatosensory nervous system
What are some descriptors of neuropathic pain?
Shooting, burning, numb, tingling, enhanced sensitivity to heat/cool
What are the chronic non-cancer pain syndromes?
- Osteoarthritis
- Diabetic Neuropathy
- Fibromyalgia
- Post-Herpetic Neuralgia
Osteoarthritis (OA)
- Common degenerative disorder or the joints leading to hypertrophic bone changes
- Most common in hands, knees, hips, and spine (asymmetric)
What are some symptoms of Osteoarthritis (OA)?
- Persistent joint pain
- Stiffness
- Locomotor restriction
Diabetic Neuropathy
- Nerve damage caused by poorly controlled diabetes that leads to numbness in extremities
- Most common microvascular complication of diabetes
What are some symptoms of diabetic neuropathy?
- Unprompted numbness
- Tingling
- Burning
- Shooting (symmetrical)
What are some risk factors of diabetic neuropathy?
- Poor blood sugar control
- Longer duration of diabetes
- Kidney disease
- Obesity
- Cigarette smoking
What are the first line pharmacological treatments for Diabetic Neuropathy?
- Duloxetine (SNRI) - FDA approved
- Pregabalin - FDA approved
- Gabapentin
What are the second line pharmacological treatments for Diabetic Neuropathy?
- Venlafaxine (SNRI)
- Amitriptyline (TCA)
- Lidocaine patch
- Capsaicin cream/patch - FDA approved
- Tramadol (last line)
- Tapentadol (last line)
Fibromyalgia
Widespread soft tissue pain affecting muscles, ligaments, tendons with no obvious objective abnormalities
What are some symptoms of fibromyalgia?
Diffuse musculoskeletal pain present for > 3 months, often accompanied by fatigue, headache, cognitive disturbance, and sleep disturbances
What are some treatment to target sleep disturbances of fibromyalgia?
- Amitriptyline
- Cyclobenzaprine
- Gabapentinoid (pregabalin-FDA approved, gabapentin)
What are some treatment to target depression/anxiety of fibromyalgia?
- SNRIs - duloxetine (FDA approved), milnacipran (FDA approved)
- Amitriptyline
- Pregabalin
Postherpetic Neuralgia
Pain in a dermatomal distribution caused by nerve damage secondary to an inflammatory response induced by viral replication (herpes zoster-shingles) within a nerve sustained for at least 90 days after acute herpes zoster
What are some symptoms of postherpetic neuralgia?
- Burning
- Shock-like pain
- May be associated with allodynia or hyperalgesia
Allodynia
Pain from stimuli which are not normally painful
Hyperalgesia
Abnormally heigtened sensitivity to pain
What are the first line pharmacological treatments for Postherpetic Neuralgia?
- Gabapentin (FDA approved)
- Pregabalin (FDA approved)
- Lidocaine patch (FDA approved)
- Capsaicin patch (FDA approved)/cream