Author, year	Study design	Number of Interventions	Number of Interventions	Comparative parameters	Comparative parameters	Comparative parameters	Comparative parameters	Comparative parameters
		ET	MT	Operative time	ABG improvement	Graft uptake	Additional maneuvers	Complications rate
Harugop et al., 200814	RCT	50	50	√		√	√	√
Lade et al., 201415	RCT	30	30		√	√	√
Kumar et al., 201516	Prospective comparative	30	30	√	√	√	√	√
Nassif et al., 201517	Retrospective cohort	22	23	√	√	√
Patel et al., 201518	RCT	22	22	√		√	√	√
Ahmed et al., 201619	Prospective comparative	50	50	√	√	√
Gadag et al., 201620	RCT	30	30	√		√
Gaur et al., 201621	Prospective comparative	30	30	√		√		√
Huang et al., 201622	Retrospective comparative	50	50	√	√	√		√
Kumar et al., 201623	RCT	30	30	√	√	√	√	√
Lakpathi et al., 201624	Prospective comparative	30	30	√		√		√
Sanji et al., 201625	Retrospective comparative	16	28	√		√
Shoeb et al., 201626	Prospective comparative	30	30		√	√
Choi et al., 201727	Retrospective comparative	25	48	√	√	√	√
Jyothi et al., 201728	RCT	60	60	√	√	√	√	√
Kuo and Wu, 201729	Retrospective comparative	62	44	√	√	√		√
Sinha et al., 201730	RCT	22	22		√	√	√
Khaliq et al., 201831	RCT	30	30	√	√	√	√
Maran et al., 201832	RCT	30	30	√	√	√	√
Saggu et al., 201833	Prospective comparative	30	30	√		√
Ohki et al., 201934	Retrospective comparative	47	75	√	√	√
Sundararajan et al., 201935	RCT	40	40	√	√	√		√