[Prevention of ostial obstruction after microendoscopic endonasal dacryocystorhinostomy]

Ostial dilatator was created to prevent recurrence and improve efficacy of microendoscopic endonasal dacryocystorhinostomy. Proposed technique was for the first time used in 52 patients. Postoperative results were analyzed: recovery was achieved in 78% of cases, improvement - in 22%. In a control group (51 patients) we used conventional technique, recovery was achieved in 67% of patients and improvement in 28%, in 5% recurrence occurred. The use of ostial dilatator resulted in microendoscopic endonasal dacryocystorhinostomy efficacy improvement.