Table 1.

Clinical characteristics of endoscopic surgery in 15 patients with ASDH

No.	Age	Sex	Premorbid mRS	Comorbidities	Cause	Light reflex	GCS on admission	Antithrombotic drug	Chief complaint	Time from trauma to operation	Hematoma volume (mL)	Midline shift (mm)	Bleeding source	Operative time (min)	Bleeding amount (mL)	Extraction rate (%)	Rebleeding	GCS score 7 days postop	mRS 6 months after the OP
1	70	F	0	HT	Idiopathic	+	15	–	Headache	?	102	11	–	120	10	100	–	15	0
2	71	F	2	SAH	Fall	+	10	–	Focal deficit	48 hr	131	14	–	55	5	90	–	14	2
3	78	F	3	AD, AF	Idiopathic	–	6	+	Impaired consciousness	?	195	5	–	64	5	95	–	14	4
4	78	M	0	Colon cancer	Fall	+	8	–	Impaired consciousness	2 hr	171	15	V	100	50	97	–	Dead	6
5	81	M	2	AF	Fall	–	13	+	Impaired consciousness	8 hr	98	15	–	79	10	100	–	14	6
6	82	M	2	AMI, AD	Fall	+	12	+	Focal deficit	48 hr	133	13	–	53	10	100	–	14	2
7	84	M	2	Gastric cancer, HT	Fall	+	7	–	Impaired consciousness	6 hr	125	11	–	153	100	100	–	Dead	6
8	86	F	2	HT	Fall	+	8	–	Impaired consciousness	4 hr	140	10	A	48	50	100	–	14	3
9	86	F	2	Angina pectoris	Fall	+	6	+	Impaired consciousness	2 hr	87	12	V	156	400	90	–	14	4
10	86	F	2	SAH, AF	Fall	+	13	+	Impaired consciousness	24 hr	99	12	–	95	10	98	–	14	4
11	88	M	4	CI, diabetes mellitus	Fall	+	6	+	Impaired consciousness	3 hr	252	14	–	68	100	98	+	Dead	6
12	89	M	2	CI	Fall	+	13	–	Impaired consciousness	1 hr	150	10	–	140	30	100	–	11	5
13	91	F	2	Angina pectoris	Fall	–	6	+	Impaired consciousness	4 hr	240	25	–	100	400	98	–	6	5
14	100	F	4	CI	Idiopathic	–	6	+	Impaired consciousness	?	159	13	–	82	20	100	+	3	6
15	101	F	3	Dementia	Fall	+	11	–	Focal deficit	2 hr	157	7	–	91	10	100	–	7	5
Median (range)	86 (70–101)	9 F/6 M	2 (0–4)		12 fall/3 idiopathic	11 present, 4 absent	8 (6–15)	8 present	11 impared conscioussness, 3 focul deficits, 1 headache	6 (1–48) hr	140 (87–252)	12 (5–25)	1 A, 2 V	91 (48–156)	20 (5–400)	100 (90–100)	2 present	14 (3–15)	5 (0–6)

A: arterial bleeding, AD: aortic dissection, AF: atrial fibrillation, AMI: acute myocardial infarction, ASDH: acute subdural hematoma, CI: cerebral infarction, F: female, GCS: Glasgow Coma Scale, HT: hypertension, M: male, mRS: modified Rankin Scale, OP: operation, postop: post operation, SAH: subarachnoid hemorrhage, V: venous bleeding