Abstract
Objective: we report our series of late hydroma after cochlear implantation, this complication has not been widely reported in the literature. Method: retrospective study.
 Results: four children who had undergone a cochlear implantation aged between 3.2 and 5.3 years (median 4.5 years) were studied. The hydroma episode occurred 4 months to 3 years after cochlear implantation. Two patients had two recurrent episodes. No obvious etiological factors were found, including trauma or infection. No patient benefited from a fine needle aspiration or drainage, all the patients were treated with a broad-spectrum antibiotic with corticosteroid and a slightly compressive bandage with good results in all cases.
 Conclusion: Late-onset hydroma is a minor complication with no obvious etiology and good evolution and risk of recurrence, its management remains no codified due to the limited number of cases reported in the literature.
Highlights
Cochlear implantation has become a common procedure performed for management of bilateral severe to profound sensorineural hearing loss
The aim of this study is to present our experience with a series of four children who developed late and recurrent hydroma several months after surgery
The age of cochlear implantation has been between 3.2 years and 5.3 years
Summary
Cochlear implantation has become a common procedure performed for management of bilateral severe to profound sensorineural hearing loss. The complications of cochlear implantation are generally low and are classified as major or minor [1]. Among these complications, some patients recurrently develop late hydromas covering the subcutaneous region of the implant. Some patients recurrently develop late hydromas covering the subcutaneous region of the implant These hydromas occur at an early stage in 0.4 to 3.7% [2]. It is a minor complication but can have serious consequences if not properly managed, with risk of secondary infection and total extrusion of the implant [2]. The aim of this study is to present our experience with a series of four children who developed late and recurrent hydroma several months after surgery
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