Type of cleft(s) Procedure performed Indications to surgery Evaluation tools Outcome(s)
Chalat, 1965 [16] cleft lip and/or palate A+T ORCHL (38 patients), OMAR (35 patients) clinical evaluation and PTA Average ORCHL improved from 12,7 dB to 3.4 dB; resolution of OMAR in 28/35 patients
Loeb, 1964 [17] cleft palate A or A+T OMAR, worsening ORCHL clinical evaluation and PTA Improved hearing and speech in 10 patients; hypernasality improved in 3 patients, unaltered in 12 patients
Severeid, 1972 [18] cleft palate A OME clinical evaluation and myringotomy OME resolution in 51/83 patients