Chronic fatigue Flashcards
What is chronic fatigue syndrome
Myalgic encephalomyelitis
Long standing fatigue
Criteria for fatigue NICE
> 4 months
New or clear onset
Not explained by else eg BMI >40
Significant reduction in activity level
Classically post exertional, delayed onset, lasts >24 hrs
What criteria does CFS have to be associated with
Difficulty sleeping
Widespread muscle/joint pain
Cognitive impairment ie poor memory, word finding difficulties, poor concentration
Ongoing flu like symptoms: malaise, painful lymph nodes, sore throat, headahces
Dizziness/nausea/palpitations/orthostatic intolerance
Fatigue vs depression
Fatigue - reduced energy, subjective feeling of tiredness or exhaustion
Depression - reduced motivation and enjoyment. Down/weepy/upset. Concomitant fatigue
Baseline tests for chronic fatigue
FBC
U&Es
LFTs
TFTs
CRP/ESR
HbA1c
IgA anti-tissue transglutaminse (anti-ttg) - coeliac disease can cause fatigue without GI symptoms
What investigations consider in chronic fatigue symptoms if suggestive history
Bone panel/myeloma screen
Vitamin D
EBV/CMV
Lyme serology
HIV/Hepatitis
What can be a triggering event for chronic fatigue
Infection w EBV, other viruses, vaccination at a time of stress/exertion
Principles of management of chronic fatigue
Coping therapies - educate a patient on condition
Pascing techniques - avoid over exertion, track activity and symptoms
What is complex regional pain syndrome
Distal limb affecetd after injury, fracture, surgery or trauma
Chronic severe and debilitating pain within 1 month
What causes complex regional pain syndrome
Damage to 1 major nerve or to small sensory and autonoic nerves in area
Criteria for complex regional pain syndrome
at least 1 symptom from 3/4 categories:
Sensory -
-allodynia - pain from non painful stimuli
-hyperalgesia - increased/disproportionate pain from painful stimuli eg pinprick
Vasomotor - temp changes, colour changes
Sudomotor - oedema, reduced/increased sweating
Motor/trophic - reduced motor function, nail, skin, hair changes
What can be seen on investigation with CRPS
Nerve conduction stidues and MRI can show nerve damage
Normal scan does not rule out CRPS
CRPS amputation as management problem
Development of phantom limb syndrome