Table 1.

Results of document retrieval

First author (year)	n	Locationa	Treatment	Method	Follow-up (month)	Prognosis
Ghogawala Z (1996) [4]	1	distal	microsurgery	clipping	6	good
Hamel W (2005) [5]	1	middle	microsurgery	EC & wrapping	7	mild ataxia
Fiorella D (2006) [6]	2	distal distal	endovascular treatment endovascular treatment	single stent stent-in-stent	unknown unknown	unknown unknown
Sanchez-Mejia RO (2007) [7]	3	distal middle middle	microsurgery microsurgery microsurgery	trapping & resection trapping & resection trapping & resection	unknown unknown unknown	good good good
Park SQ (2009) [3]	3	distal distal distal	conservative observation conservative observation conservative observation		16 16 1	good good good
Mathieson CS (2010) [8]	1	distal	microsurgery	clipping & resection	5	hydrocephalus & mild hypomnesia
Deshaies EM (2011) [9]	1	distal	endovascular treatment	stent-in-stent	6	good
Chen L (2012) [10]	2	middle middle	endovascular treatment endovascular treatment	coiling coiling	24 18	hemiplagia hemiplagia
Gross BA (2012) [11]	1	distal	microsurgery	clipping	12	hydrocephalus
Apok V (2013) [12]	1	distal	microsurgery	trapping & resection	unknown	hemiplagia & aphasia
Nyberg EM (2013) [13]	2	middle middle	endovascular treatment endovascular treatment	stent-in-stent stent-in-stent	14 4	good good
Ding D (2013) [14]	3	middle distal distal	conservative observation conservative observation endovascular treatment	Onyx occlusion	unknown 19 22	pontine infarction good hemiplagia
Sivakanthan S (2014) [15]	1	distal	microsurgery	clipping	6	good
Chalouhi N (2014) [16]	1	middle	endovascular treatment	flow diverter	6	good
Chavent A (2014) [17]	3	distal distal distal	conservative observation conservative observation conservative observation		6 12 6	good good good
Kim YJ (2014) [18]	1	distal	endovascular treatment	stent-in-stent	unknown	unknown
Daruwalla VJ (2016) [19]	1	distal	conservative observation		1.5	good
Peschillo S (2016) [20]	3	distal distal distal	endovascular treatment endovascular treatment endovascular treatment	flow diverter single stent & flow diverter flow diverter	6 36 6	mild monoplagia good mild hemiplagia
Forbrig R (2016) [21]	8	distal distal distal distal distal middle middle middle	conservative observation conservative observation endovascular treatment conservative observation endovascular treatment conservative observation conservative observation conservative observation	onyx occlusion coiling	6 6 60 5 23 11 15 78	hemiplagia & dysarthria good good hydrocephalus & mild disgnosia hydrocephalus & hemiplagia hydrocephalus & hemiplagia hydrocephalus & hemiplagia good
Satti SR (2016) [22]	1	distal	endovascular treatment	overlapping 3 stents	7	good
Aboukais R (2016) [23]	1	distal	conservative observation		1.5	good
Jiang Y (2016) [24]	1	proximal	endovascular treatment	microguidewire EC	6	good
Finitsis S (2017) [25]	4	distal distal middle middle	conservative observation conservative observation endovascular treatment conservative observation	flow diverter	1.5 12 3 1.5	good mild HP right dysacousis good
Buell TJ (2017) [26]	2	middle middle	endovascular treatment endovascular treatment	stent-in-stent stent-in-stent	unknown unknown	unknown unknown
Chau Y (2017) [27]	3	distal distal distal	conservative observation endovascular treatment endovascular treatment	stent-in-stent coiling stent-in-stent	12 6 6	good good good

^aThe basilar trunk was divided averagely into three parts – distal, middle and proximal segments

n number of cases, EC electrocoagulation