Intérêt de l’oto-endoscopie dans la myringoplastie par greffon adipocytaire

[Prospects of endoscopic otosurgery in children]

Active progress in otosurgery opens up new opportunities for minimally invasive surgeries and significantly improves the results of treatment, but a number of problems remain unsolved, including in children. Despite the general positive trend of using the endoscope in otosurgery, in pediatric practice the data are insufficient and extremely contradictory. Literary sources show that, with certain advantages, the existing techniques of endoscopic tympanoplasty are far from perfect and inferior in effectiveness to classical microscopic techniques, which also necessitates further research in this field.

Are bovine pericardium underlay xenograft and butterfly inlay autograft efficient for transcanal tympanoplasty?

To evaluate the success rate and the surgical procedure of two different transcanal myringoplasty techniques using the Tutopatch(®) (Tutogen Medical, Inc., Alachua, FL, USA), a xenograft produced from bovine pericardium or the butterfly, an inlay tragal cartilage autograft. This is a retrospective study. We studied all cases of transcanal myringoplasty with Tutopatch and butterfly, performed by the same surgeon between April 2005 and May 2013. Perforations were secondary to chronic otitis media without cholesteatoma, perforation post ventilation tube or trauma. They were not exceeding one-third of the tympanic membrane surface for the Tutopatch and one quarter for the butterfly. We evaluated the anatomical success rate, complications and postoperative hearing results in both techniques. A total of 106 myringoplasties were performed: 66 with Tutopatch and 40 with butterfly with a mean follow-up of 16.5 and 5.2 months, respectively. Successful closure rates of Tutopatch and butterfly were 75.8% (P < 0.0001) and 85.0% (P < 0.0001), respectively. Myringitis controlled with topical antibiotics treatment occurred in 8 (12.1%) and 5 (12.5%) cases. Eighty percent of patients with Tutopatch had a mean residual air-bone gap within 10 dB, compared to 85.0% in patients with butterfly. When anatomically feasible, a transcanal approach myringoplasty with a Tutopatch(®) graft or butterfly appears to provide good anatomical and functional results. We show that both techniques provide good anatomical and functional results. The butterfly has the advantage to use an autograft, which is surgically easier because it does not require tympanomeatal flap elevation. We recommend the butterfly technique for non-marginal perforation not exceeding one quarter of the tympanic membrane after excision of the perforation edge and Tutopatch for bigger perforation or when standard autografts are not available. Myringitis is the only described complication without specific incidence.

Comparison of paper-patch, fat, and perichondrium myringoplasty in repair of small tympanic membrane perforations

OBJECTIVE: To compare the effectiveness of paper-patch, fat, and perichondrium myringoplasty in the treatment of chronic tympanic membrane perforations smaller than 3 mm.

SUBJECTS AND METHODS: This investigation included 45 patients with chronic tympanic membrane perforations smaller than 3 mm. The patients were equally divided into 3 main groups according to surgical procedures. Each group consisted of 3 subgroups, which had 1-mm, 2-mm, and 3-mm perforations. The patients underwent paper-patch, fat, or perichondrium myringoplasty via transcanal approach under local anesthesia. Healing of perforation, hearing improvement, and complications were investigated.

RESULTS: Closure rates of the perforations in the paper-patch, fat, and perichondrium myringoplasty groups were 66.7%, 86.7%, and 86.7%, respectively. There were no statistically significant differences in tympanic membrane closure rates between techniques with regard to size.

CONCLUSION: Three techniques were found to be feasible for tympanic membrane perforations smaller than 3 mm.