Trichloroacetic acid Alloderm™ Myringoplasty as a novel option for tympanic membrane reconstruction in children.

PURPOSE: A novel "Modified TCA Alloderm™ Myringoplasty" (TCA myringoplasty) technique for reconstruction of uncomplicated chronic tympanic membrane (TM) perforations is described. MATERIALS AND METHODS: Descriptive surgical technique for TCA myringoplasty on 12 total patients from 1/1/2020 to 12/31/2020. 3 patients were excluded for incomplete records. Statistical analysis employed Wilcoxon signed-rank tests. Both structural (pre/post visual inspection and tympanogram) and functional (pre/post pure tone average, PTA) outcome measures are reported. RESULTS: 12 total ears were analyzed from 9 patients. Average age at surgery was 6 (range 3-22). Perforation size ranged from 10 to 60 %. Rate of structural success was 100 %. Functionally, postoperative PTA were significantly decreased from preoperative (mdn(range) = 18.44(13.13-24.38) vs mdn(range) = 11.25(6.25-22.50), p = .008). Only one TM required >1 procedure to achieve closure. CONCLUSIONS: Chronic TM perforations are typically reconstructed via Type I tympanoplasties with temporalis fascia, reserving myringoplasty for favorable perforations (<25 % in size and posterior). Our novel TCA myringoplasty technique has excellent outcomes independent of size and location. We apply a chemical peel concept to a modified myringoplasty technique, obviating incisions and graft harvest. Advantages of Alloderm™ include: 1) a more rigid graft, facilitating manipulation and precise placement; 2) various size and thickness options, especially useful for dimeric tympanic membranes, tympanolysis of adhesions, and bilateral perforations; 3) no donor morbidity and harvest time; 4) autologous tissue preservation. The sole disadvantage of cost is mitigated by reduced operative time and complication management. This study revealed encouraging proof-of-concept preliminary data warranting prospective and sufficiently powered analysis, supporting the technique as a viable alternative to the gold standard.

Characteristics and management of pediatric medial subperiosteal orbital abscesses.

INTRODUCTION: Subperiosteal orbital abscesses (SPOA) are the most common suppurative complications of acute bacterial sinusitis. Medial SPOAs arise from infection of the ipsilateral ethmoid sinus and favor initial conservative management reserving surgical drainage for patients who do not demonstrate clinical improvement. No standard algorithm defining medical versus surgical treatment of medial SPOAs exist in the pediatric population. OBJECTIVES: To identify a size cutoff for medial SPOAs to predict the likelihood for surgical drainage. METHODS: This is a retrospective review of patients with medial SPOAs at a tertiary care center from 2003 to 2017. Diagnosis of SPOA was based on radiographic findings. Variables included are patient demographics, antibiotic therapy, surgical intervention, and length of stay. RESULTS: 82 patients with a medial SPOA were included with an average age at presentation of 6.27 (range 0-15) years were included in this study. 62 patients were male (75.6 %), and 20 were female (24.4 %). The average abscess length was 16.1 mm, range 4.5-30.7 mm. The average abscess width was 4.17 mm, range 1.5-14.6 mm. The odds ratio for surgical treatment with every 1 mm increase in abscess width was 1.89 (95CI:1.33-2.69, p < 0.001). Abscesses over 3.6 mm width were 6.65 times more likely to undergo surgical drainage than those less than 3.6 mm (OR:6.65, 95CI:2.52-17.54, p < 0.001). The average(SD) length of stay was 5.4(3.0) days for patients who underwent surgery and 4.0(0.9) days for patients treated with conservative measures, p < 0.001. CONCLUSION: Medial SPOAs greater than 3.6 mm were more likely to undergo surgical drainage; however there was no difference in the likelihood of drainage between anteriorly and posteriorly based medial abscesses. These findings help further characterize the landscape of pediatric subperiosteal abscesses that are managed with surgical drainage.