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Immediate 50 cc drainage
Mean BP > 90
>20-cm coverage OR distal coverage <5-
cm prox to celiac artery
Limit drainage <15-ml/hr or <350-ml/d
Drain for > 12 mm
Overdrainage
risk of subdural hematoma
Prophylactic drainage
24 hr drainage
24 hr clamp
removal
Therapeutic drainage
72 hr drainage
reduce BP
24 hr clamp
removal
Drainage maximum of 5 days*
D i
h ld b i
t d ithi 1 h f