Study	No. of cases	Follow up (months)	With stent (%)	Without stent (%)
Harugop et al. (2008)	50	16.3	96	93
Smirnov et al. (2008)	23	6	78	100
Kakkar et al. (2008)	20	2.5	85	90
Unlu et al. (2009)	19	9.7	84	94.7
Shashidhar et al. (2014)	32	6	93	86.7
Reddy et al. (2015)	10	6	90	80
Fayers et al. (2016)	152	12	94.7	87.8
Rao et al. (2016)	25	6	92	84
Ahmad et al. (2016)	15	12	93	86.6
Smitha et al. (2016)	30	6	85	90
Chong et al. (2013)	63	12	96	95.3
Al-Qahtani et al. (2012)	92	12	96	91
Our present study	50	5	96	92