[Surgical methods of cerebrospinal fluid otorhinorrhea due to inner ear malformation in children].
Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology, head, and neck surgery(2022)
Abstract
To discuss the application of two surgical methods, trans-mastoid approach and trans-canal endoscopic approach, in the treatment of CerebroSpinal Fluid(CSF) otorhinorrhea due to inner ear malformation(IEM) in children. Children with CSF otorhinorrhea due to IEM, from July 2015 to Jan 2021, in ENT department, Beijing Children's Hospital were retrospectively analyzed, and the clinical data, surgical methods, complications, recurrence and follow-up were recorded. 30 children with CSF otorhinorrhea due to IEM were included. Half of them had a history of otorhinorrhea, and 53.3% of them were diagnosed as cerebrospinal fluid(CSF) otorrhea at the first onset Unilateral and bilateral IEM were 22 cases and 8 cases respectively. All unilateral IEM children had secondary infections such as meningitis or/and pneumonia, and 9.1% had cochlear implantation(CI) due to deafness after meningitis. 87.5% bilateral IEM children had CI due to profound/severe hearing loss. 96.7% CSF otorhinorrhea were unilateral, there was no relationship between CSF otorhinorrhea and the malformation side or the time of CI surgery. Trans-mastoid approach was used in 14 cases, usually involving CI or other operations; and endoscopic approach in 16 cases. The age of trans-mastoid group was younger than that of endoscopic group. No recurrence and complications occured in the trans-mastoid group. In the endoscopic group, 2 cases recurred; 3 cases had complications(2 with temporary facial paralysis and 1 with labyrinth and intracranial pneumatosis). Except one case lost, the others were followed up for 1.2-6.7 years, and no recurrence of pneumonia, meningitis and CSF otorhinorrhea happened. Unilateral IEM usually leads to meningitis or/and pneumonia, and bilateral IEM requires CI. Both trans-mastoid and trans-canal endoscopic approach were effective for CSF otorrhea repair. Trans-mastoid approach is suitable for those who need mastoid exploration, CI or combined with other operations. Trans-canal endoscopic approach was choosed when fistula was confined to the tympanum and ear canal diameter was wide enough.
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Key words
cerebrospinal fluid otorhinotorrhea,child,inner ear malformation,trans-canal endoscopic approach,trans-mastoid approach
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