(!) Pericarditis Flashcards
Define acute pericarditis
acute
Inflammation of the pericardium secondary to other causes (infections, IHD, drugs, auto-immune )
either fibrinous (dry) or effusive with a purulent, serous, or haemorrhagic exudate
chest pain, pericardial friction rub, and serial electrocardiographic changes
differentiate from constrictive pericarditis (often after acute pericarditis)
aetiology of acute pericarditis
90% are viral or idiopathic
(coxsackle, flu, mumble, HIV)
other 10%-bacteria, MI
Drugs-penicillibm hydralazine
RA, SLE, sarcoidosis, ureamia (dyalisis)
More common between 20-50 and in MEN
Epidemology of acute pericarditis
More common between 20-50, men
could make up to 5% of A&E presentation-uncertain
Symptoms of acute pericarditis
CHEST PAIN-worse with inspiration and lying flat
lasts a few days (not MI length)
FEVER, myalgia,
can have signs of RHF
Signs of acute pericarditis
Pericardial friction rub-squeak as they breath
best hear at left sternal angle and breath
Evidence of pericardial effusion (raised JVP, Cardiac tamponade (pulse UP, bp low, JVP up, Kussmails sign, muffles S1 and S2)
tests for acute pericarditis
ECG-classical SADDLE SHAPED ST SEGMENT, ST elevation
Bloods- Trop can be high want FBC (WBC), ESR, VIRAL SEROLOGY, blood cultures, TFT's
CXR-cardiomegaly can indicate pericardial EFFUSION
Echo-if effusion/contrictive
management of Pericarditis
act based on risk factors-high fever, tamponade, effusion, not responding to NSAID)
Often just analgesia (viral) (ibuprofen, 400mg/8h PO)
consider Colichine (anti uraemia) before steroids
If not viral, treat the cause
care about steroids-can increase risk of recurrence
Complications of pericarditis
–Accumulation of transudate, exudate, or blood—-Pericardial effusion w/ or w/o tamponade
fluid in the pericardium-compress heart which causes tamponade (relatively common)
Effusions are common with neoplastic pericarditis and are often recurrent and difficult to manage
rarer-chronic contrictive pericarditis
complications more common for bacterial
Prognosis of pericarditis
Prognosis generally depends on the underlying cause and disease severity.
big ones-effusion and tamponade
high fevers
not respond to NSAID
trauma, immunosupresion
usually self limited in 70%/90% of patients
complications more common for bacterial