Table 1. Success rate and complication of distal radial artery access in cardiovascular intervention.

PCI, percutaneous coronary intervention; dRAO, distal radial artery obstruction; pRAO, proximal radial artery occlusion

Year	Author	Country of the study	Number of patients (PCI)	Success rate, %	Complications, %
May 2017	Kiemeneij [5]	Netherlands	70 (25)	89	dRAO: 1.5%
Jul 2017	Amin et al. [15]	Bangladesh	50	98	No complications observed
Jan 2018	Roghani-Dehkordi et al. [16]	Iran	235	94	No complications observed
Mar 2018	Al-Azizi and Lotfi [17]	US	22 (7)	100	No complications observed
Mar 2018	Valsecchi et al. [18]	Italy	52 (25)	90	pRAO: 4%, artery spasm: 2%
Mar 2018	Soydan and Akin [19]	Turkey	54 (20)	96.3	Artery spasm: 3.7%
Aug 2018	Coughlan et al. [20]	Ireland	47	100	No complications observed
Aug 2018	Kim et al. [21]	Korea	150 (42)	88	Hematoma: 4.9%
Sep 2018	Koutouzis et al. [22]	Greece	100	70	No complications observed
Oct 2018	Ziakas et al. [23]	Greece	49 (8)	90	Hematoma: 16%, bleeding: 4.5%, artery spasm: 16%, pain: 9%,
Dec 2018	Wretowski et al. [24]	Poland	218 (48)	89.4	No complications observed
Feb 2019	Aoi et al. [25]	US	202 (90)	99.5	Hematoma: 10.1%, dRAO: 1.0%, arteriovenous fistula: 0.5%
Mar 2019	Maitra et al. [26]	India	55	87.3	Hematoma 2%
Apr 2019	Norimatsu et al. [10]	Japan	74 (27)	91	No complications observed
May 2019	Gasparini et al. [27]	Italy	41(41)	82.9	Artery spasm: 10%, dRAO: 2.4%
May 2019	Mizuguchi et al. [28]	Japan	228 (77)	99.5	Hematoma: 4.4%, pRAO: 0.4%, dRAO: 3.1%, numbness: 0.9%
Jul 2019	Vefali et al. [13]	Turkey	102 (24)	95.1	No complications observed
Sep 2019	Lee et al. [29]	Korea	200 (86)	95.5	Hematoma: 7.4%, arterial dissection: 0.5%, numbness: 1%
Dec 2019	Aqel et al. [30]	Palestine	200 (17)	98	No complications observed