Table 1

- Baseline demographic characters of enrolled studies.

Author/yearCountryDesignTotal sample sizeMeningitis patients (N)Age mean Y (Range)Male/FemaleDevice type
Cohen & Hoffman15/1991USAROS92123--(23) Nucleus device
Daspit6/1991USACase report1151Male(1) Nucleus device
Webb et al16/1991GermanyROS7121--(1) multichannel implant
Page & Eby17/1997UKCase report115Male-
Woolley et al18/1998USACase series415 y 4 monthsFemale(1) multichannel implant
Reefhuis etl al19/2003USAPOS426426(11-6)18/8(4) CI24M, (11) AB-5100H, (2) AB-5100,(7) AB-5100H-11, (2) CI24RST, (2) CI22M, (1)C40+HS
Callanan & Poje10/2004USACase series223-5Male(2) Clarion C-II device with positioner
Pettersen20/2005CanadaCase report114Male(1) Advanced bionics with positioner
Biernath KR21/2006USAROS426512(21-103) months9/3(8) AB-5100H-11, (1) C40HGB, (3) AB-5100H
Ahn et al22/2008KoreaROS38815.2Male(1) HF.1.2
Mancini et al23/2008ItalyCase series33(9-11)2/1(2) Clarion 1.2, 1 Clarion HiFocus CII
Torkos et al24/2009HungaryCase report112Male(1) Nucleus 24 R
Loundon et al25/2010FranceROS43416--
McJunkin & Jeyakumar26/2010USAROS16515Female(1) Med El
Ahn et al27/2011KoreaROS112-1/1(1) HF 1.2, (1) CI24RST
Ajallouyean et al4/2011IranCase series26211.5--
Gurbuz et al7/2011TurkeyCase report118.5Female(1) Med-El© short electrode
Lalwani & Cohen28/2011USAROS8,3298643 <5 y-(86) devices with positioner
O’Mahony et al29/2011USACase report114Male(1) Implant with positioner
Mancini et al8/2013ItalyCase series55(2.5-8)2/3AB devices: 2 with Clarion 1.2 HiFocus with positioner, 1 with HiFocus CII and 1 with HiResolutionTM 90K; 1 with a Med-El Combi 40+
Roman et al30/2013USACase report112Female(1) Nucleus CI24 straight electrode array
Tarkan et al31/2013TurkeyROS47521.5-2.5-(1) Med-El Sonata (straight array), (1) Nucleus CI24RE (contour array)
Afsharpaiman et al32/2014IranROS371124 monthsFemale-
Suleiman et al33/2014NigeriaCase series218Female(1) Medel Pulsar
Daneshi et al34/2015IranROS43464---
Javia et al35/2016USAROS4784(1.3-4)3/1(1) Clarion CII, 1 Clarion HiFocus, 2 AB HiRes 90K
Pross et al36/2016USACase report114Female-
Tandon et al37/2016Indiacase report111Male(1) Nucleus freedom implant CI24RE (straight electrode) with straight electrode array
Vartanyan et al38/2018AustraliaCase report1123Female-
Dağkıran et al5/2020TurkeyROS14525---
Yan et al39/2020ChinaCase report117Male-
Piromchai et al40/2021ThailandROS4589--(9) 3M device

ROS: retrospective study, POS: prospective study, USA: United Stated of America, Y: years, AB: advanced Bionics, HS: Houston Galveston Brazoria, HF: HiFocus electrode array