Comparison of outcome following Dacryocystorhinostomy with or without silicon stent appliance; a randomized clinical trial

The present study aims to evaluate the effect of silicone stent appliance in DCR through comparing it with conventional DCR. A target population of 50 patients is considered for this study. In this randomized clinical trial Patients with Nasolacrimal duct obstruction attending to Otolaryngology clinic of Baqiyatallah hospital will be assessed for eligibility. After confirmation of diagnosis by history taking, physical examination and Dacryocystography and signing a written informed consent form, patients will be randomly allocated to two groups regardless of age, gender and disease duration; group A patients will undergo endoscopic Dacryocystorhinostomy (DCR) with silicon stent and group B patients will undergo conventional endoscopic Dacryocystorhinostomy. Silicon stent will be removed one month after intervention. Etiology of disease and method of surgery will be explained for patients prior to intervention. Patients with previous DCR, Previous history of nasolacrimal duct surgery, not willing to participate in the study or concurrent sinus disease will be excluded from the study. Demographic and main complaints of patients will be recorded in a pre designed checklist. Patients in both groups will be evaluated for symptom resolution, peri and post operational complications such as bleeding, discharge, adhesion and punctuate granuloma formation in first and sixth months after intervention. In every visit patients will undergo diagnostic endoscopy in terms of obstruction evaluation and results will be recorded for each patient separately.

Deputy of Research in Baqiyatallah University of Medical Sciences