PURPOSE: To evaluate the efficacy of endoscopic endonasal primary conjunctivodacryocystorhinostomy (CDCR) and revision CDCR after primary CDCR. METHODS: Twenty-four patients who had undergone endoscopic endonasal CDCR with a Jones tube and who were followed up for over 6 months at our hospital were reviewed retrospectively. Our analysis included success rate, operation times, and causes of failure. RESULTS: The indications for revision CDCR were Jones tube prolapse and inadequate tube length. The initial success rate in the primary and revision groups were 78.6% (11/14) and 100% (10/10), respectively, and their mean operation times were 24 min (+/- 6.3) and 21 min (+/- 6.1), respectively. Main causes of failure included inaccurate tube length and abnormal tube position. CONCLUSIONS: Endoscopic endonasal CDCR appears to be a reasonable revision and primary approach, because it allows Jones tube length to be measured accurately during surgery, and an 18- to 20-mm Jones tube length was used in most cases. Copyright 2007 S. Karger AG, Basel.
PURPOSE: To evaluate the efficacy of endoscopic endonasal primary conjunctivodacryocystorhinostomy (CDCR) and revision CDCR after primary CDCR. METHODS: Twenty-four patients who had undergone endoscopic endonasal CDCR with a Jones tube and who were followed up for over 6 months at our hospital were reviewed retrospectively. Our analysis included success rate, operation times, and causes of failure. RESULTS: The indications for revision CDCR were Jones tube prolapse and inadequate tube length. The initial success rate in the primary and revision groups were 78.6% (11/14) and 100% (10/10), respectively, and their mean operation times were 24 min (+/- 6.3) and 21 min (+/- 6.1), respectively. Main causes of failure included inaccurate tube length and abnormal tube position. CONCLUSIONS: Endoscopic endonasal CDCR appears to be a reasonable revision and primary approach, because it allows Jones tube length to be measured accurately during surgery, and an 18- to 20-mm Jones tube length was used in most cases. Copyright 2007 S. Karger AG, Basel.