| Bilge et al. (2020), Turquia18 |
Case Report (n=1) |
Yes |
Bilateral HL with no classification (not available) |
1 year |
20 years |
No |
- |
| Talebi et al. (2016), Irã2 |
Case Report (n=1) |
Yes |
Bilateral severe/profound HL (audiometry) Type A curve and absent ipsilateral and contralateral reflexes (immitanciometry) Absence of high frequency response (BAEP) Present (TEOAEs) |
2 years |
Not Available |
Not Available |
Suggestive of auditory neuropathy |
| Singh et al, (2015), Índia19 |
Retrospective Observational (n=10) |
Yes (N=5) No (N=1) No (N=4) |
Bilateral HL with no classification (not available) |
1-84 months (35 months) |
1-84 months (35 months) |
Not Available |
The child without HL was the only one diagnosed and treated at 1 month of age. |
| Cabasson et al. (2015), França4 |
Case Study (N=1) |
Yes |
Mild bilateral HL (audiometry) |
Not Available |
4 years |
No |
- |
| Bhat et al. (2015), Índia20 |
Case Report (N=1) |
Yes |
Mild unilateral left HL at 4 months of age (BAEP) Moderate bilateral HL at 9 months (BAEP) Moderate bilateral HL at age 3 years (BAEP) Severe bilateral HL at age 7 years (ASSP) Severe bilateral HL at age 14 years (audiometry) |
4 months |
2 years and a half |
No |
- |
| Desai et al. (2008), Índia21 |
Case Series (n=4) |
Yes (N=1) No (N=3) |
Bilateral HL with no classification (BAEP) |
1-3 months (2 months) |
1-3 months (2 months) |
No |
The child with HL had Profound BD and the others had Partial BD |
| Welling (2007), EUA22 |
Case Report (n=1) |
Yes (N=1) |
Mild bilateral HL at 16 months (audiometry) Mild bilateral HL at 36 months (audiometry) Moderate bilateral HL at 40 months (audiometry) Moderate bilateral HL at 10 age 10 years (audiometry) |
16 months |
40 months |
No |
BP stabilized after Biotin use |
| Genç et al. (2007), Turquia23 |
Transversal Observational (n=20) |
Yes (N=11) No (N=9) |
Bilateral HL with no classification (audiometry) Type A curve in all patients (tympanometry) Absent in all children (TEOAEs e DPOAEs) Wave change in asymptomatic children (BAEP) |
Age group not available (mean age of children with HL=6.9 months) Age group not available (average age of children without HL= 18.6 months) |
Age group not available (mean age of children with HL= 21.5 months) Age group not available (mean age without HL=15.4 months) |
No |
Six children without HL showed absence of V wave on BAEP. The other three children had no BAEP waveform changes and were treated at birth |
| Weber et al. (2004), Suiça24 |
Transversal Observational (n=37) |
Yes (N=11) No (N=26) |
Bilateral HL without a description of the degree of involvement |
No age group available (children with HL=17.5 months) No age group available (children without HL=11 days) |
No age group available (children with HL=23 months) No age group available (children without HL=40 days) |
Not Available |
All children identified at newborn screening and treated had no symptoms |
| Tsao et al. (2002), EUA25 |
Case Report (N=1) |
Yes |
Moderate bilateral HL at 19 months (not available) Normal hearing at 27 meses (not available) |
17 months |
19 months |
Yes |
HL improvement at 8 months after Biotin use. The authors reported that it was a rare case |
| Wolf et al. (2002), EUA10 |
Retrospective Observational (N=33) |
Yes (N=25) No (N=8) |
Severe to profound bilateral HL (audiometry) |
No age group available (children with HL= 9.6 months) No age group available (children without HL=28 months) |
No age group available (children with HL=27.9 months) No age group available (children without HL=42.5 months) |
Not Available |
No children diagnosed at birth |
| Straussberg et al. (2000), Israel26 |
Case Report (n=1) |
Yes |
Profound bilateral HL at 3 months of age (BAEP) Moderate bilateral HL at 12 months of age |
3 months |
3 months |
Yes |
- |
| Wastell et al. (1988), Reino Unido27 |
Case Series (n=10) |
Yes (N=5) No (N=5) |
Bilateral HL with no classification (not available) |
1.5-18 months (8 months) |
2.5-24 months (14 months) |
Not Available |
- |
| Taitz et al. (1985), Reino Unido28 |
Case Series (n=3) |
Yes (N=2) No (N=1) |
Bilateral HL with no classification (not available) |
9, 6 and 3 months |
15, 19 and 22 months, respectfully |
No |
- |