Diagnosis and management of laryngeal cleft: A single centre experience and a novel endoscopic technique

Table 1 Review of literature

Ref.	Year	Number1	Grading of laryngeal cleft	Type of repair	Prospective	Level of evidence
Yalamachili et al	2015	18 (22)	16 grade 1; 2 grade 2	18 endoscopic	Yes	IV
Ojha[2]	2014	27 (42)	27 grade 1	27 endoscopic	No	IV
Thiel et al[6]	2011	12	6 grade 1; 5 grade 2; 1 grade 3	3 endoscopic; 2 open	No	IV
Cohen et al[19]	2011	16	16 grade 1	16 injection laryngoplasty	No	IV
Broomfield et al[7]	2011	7	3 grade 2; 4 grade 3	7 endoscopic	No	IV
Rahbar et al[18]	2009	49 (74)	28 grade 1; 21 grade 2	49 endoscopic	No	IV
Rahbar et al[17]	2006	22	3 grade 1; 10 grade 2; 9 grade 3	6 endoscopic; 16 open	No	IV
Chien et al[8]	2006	16 (20)	16 grade 1	16 endoscopic	Yes	IV
Kubba et al[16]	2005	35	35 grade 1-3	Variable	No	IV
Watters et al[21]	2003	8 (12)	8 grade 1	8 endoscopic	No	IV
Kennedy et al[15]	2000	8	8 grade 1	8 gelfoam	No	IV
Glossop et al[22]	1984	6 (10)	6 grade 2-4	Variable	No	IV

¹x(y) refers to x operated and y total cases (i.e., y-x managed conservatively).