Table 5.

Outcome according to treatment

Study	Evaluating timing	Evaluating score	Clipping		Coiling		Conservative		Total
			Favorable outcome	Poor outcome	Favorable outcome	Poor outcome	Favorable outcome	Poor outcome	Favorable outcome	Poor outcome
Hamada et al., 199913)	At discharge	GOS	8	2					8	2
Hamada et al., 200114)	At discharge	GOS	3	12			1	13	4	25
Mont’alverne et al., 200517)	At discharge	GOS			10	4			10	4
Nieuwkamp et al., 20064)	At discharge	GOS	8	26	2	11	14	107	25	145
Asano et al., 200715)	1M	mRS	2	3	0	1	0	18	2	22
Horiuchi et al., 201111)	At discharge	GOS	170	163					170	163
Asano et al., 201116)	“At last”	mRS	1	9	0	6	0	12	1	27
Scholler et al., 20135)	At discharge	GOS	–	–	–	–	–	–	13	11
Hishikawa et al., 201418)	At discharge	mRS			0	12			0	12
Sadamasa et al., 201419)	3M	mRS	6	17	11	9	1	25	18	51
Wilson et al., 201420)	6M	GOS			7	9			7	9
Shimamura et al., 201621)	1M	mRS	17	28	7	13	3	16	27	59
Total			215 (45.3%)	260 (54.7%)	37 (36.3%)	65 (63.7%)	19 (9.0%)	191 (91.0%)	285 (35.0%)	530 (65.0%)