Table 2.

Information collection.

Information collection	Content
Clinical information	Demographic information, health economics information, physical examination, etc.
Surgery information	Type of surgical treatment, blood information, hemostasis subjective difficulty score, etc.
Clinical score	mRS score, GCS, ICH score, GOS
Special examinations of MACCPE	Head CT, venous ultrasound of lower extremities, myocardial enzyme, thromboelastogram
Others laboratory examinations	Blood routine, biochemistry, coagulation function
Outpatient or phone review	Rebleeding event, MACCPE, survival condition