MSK fibromyalgia, crystal arthro Flashcards
what is fibromyalgia
a neurosensory disorder characterised by chronic musculocutaneous pain
WIDESPREAD body PAIN over 3 months
Pain without any inflam
(FUNCTIONAL DISORDER w/o organic cause - clam & IBS)
Prevalence and epidemiology of fibromyalgia
4% 10F=M
Female, middle aged, divorced, low household income
RA (12% also have fibromyalgia)
cause of fibromyalgia
no spec pathology
central disturbances in pain processing
DDx of fibromyalgia
RA, SLE, hypothyroidism
what is assos with fibromyalgia
chronic headache IBS chronic fatigue poor sleep depression
Rf of fibromyalgia
Female, middle aged, divorced, low household income RA (12% also have fibromyalgia)
symptoms of fibromyalgia
wise spread pain, fatigue, sensitivity to pain
“fibro fog” - poor sleep (insomnia), memory, concentration
assos morning stiffness less than 1hr
pain worse in with cold or stress
signs of fibromyalgia
signs of tenderness (11/18 tender point sites on digital palpitation)
no signs of inflammation
Dx of fibromyalgia
by exclusion (all tests return negative
exclude RA Myeloma Infection PMR)
pain at 11/18 tender point sites on digital palpatition
(base of skull, upper outer gluteal quadrant, neck n shoulder, hip bone)
Managment of Fibromyalgis
HOLLISTIC couciling CBT, cardio exercise
amitriptyline - help sleep, anti depressants
pregabalin, gabapentin - anticonvulsants, anxiety
(Analgeisa and analgesic ladder, Tramadol
SSRI dont work too well )
what is gout
inflam arthritis assos w hyperuricaemia and intraarticular monosodium urate crystals
deposits into tissues (esp 1st metatarsal joint)
what are the 2 types of Crystal arthropathy and their composition
Gout: uric acid (monosodium urate crystals)
Pseudogout: Calcium pyrophosphate
Causes of gout (principles)
increased intake of uric acid
decreased excretion of uric acid
causes of gout
(INTAKE)
increased purine consumption - beer, shellfish, fructose
increased cell turnover - chemo, leukaemia, psoriasis
(EXCRETION)
chronic kidney disease
drugs - thiazide diuretics
dehyrdation - alcohol
why does increased purine consumption cause gout
gets converted to uric acid when dna brocken down - excreted into urine or urate ion binds with Na+ – monosodium urate crystals (=GOUT)