Table 1 Study demographics
Study | Design | Sample size | Mean age | Follow up | Side | Order | Etiology | Imaging malformation | Surgical site | Brand |
|---|---|---|---|---|---|---|---|---|---|---|
Ajalloueyan | Prospective | 27 | 2 | 6–8 weeks | Unilateral | N/A | Not specified | Not specified | Round Window | “Advanced Bionics Cochlear” and “Cochlear Nucleus” |
Jin | Not specified | 12 | 3.8 | Not specified | Not specified | N/A | Not specified | Mondini (2), one branch of vestibulocochlear nerve (1), EVA (1) | Not specified | Not specified |
De Kegel | Prospective | 23 | 7mo | 2 years | Both | Both | Genetic no Syndrome (4), Genetic syndrome (6), Acquired CMV/Meningitis/premature (8), ANSD (3), Unknown (2) | Not specified | Not specified | Not specified |
Licameli | Prospective | 19 | 8 | 4–6 weeks | Unilateral | N/A | Not specified | Not specified | Not specified | Not specified |
Devroede | Retrospective | 24 | 6.75 | 90 days post-second implant | Bilateral | Sequential | Syndrome (7), Genetic mutation (7), Meningitis (1), CMV (1), ANSD (2), Unknown (8) | Vestibular (3), cochlear (1), cochleo-vestibular (3) | Antero-inferior | “Cochlear” |
Psillas | Prospective | 10 | 2.85 | 6 months | Unilateral | N/A | Not specified | Not specified | Antero-inferior | “Freedom” (6) and “Medel Sonata” (4) |
Xu | Prospective | 31 | 5.5 | 4 weeks | Unilateral | N/A | Not specified | Not specified | Not specified | Not specified |
Thierry | Retrospective | 12 | 1.9 | 1.4 years | Unilateral | N/A | Genetic (8), Syndrome (7), CMV/meningitis (5), Inner ear / PDS mutation (7), Kallman (1), Unknown (15) | Bilateral malformation (7) | Antero-inferior | “Cochlear” and “Advanced Bionics” |
Bogle | Retrospective | 5 | 7.73 | Not specified | Unilateral | N/A | Congenital (4), Acquired (1) | No abnormalities | Not specified | Not specified |
Gupta | Prospective | 23 | 5.48 | 6 weeks | Unilateral | N/A | Not specified | No abnormalities | Anterior-inferior | “Med-El Pulsar” |
Hazzaa | Prospective | 40 | 5.7 | 1 month and 6 months | Unilateral | N/A | Genetic (21), Syndrome (2), Ototoxicity (2), Perinatal (1), Unkown (13) | Not specified | Not specified | Not specified |