“…Some reports have demonstrated the effectiveness of endonasal CDCR. Boboridis and Downes reported a 75% success rate for 16 cases (Boboridis and Downes, 2005); Park et al reported a 78.6% success rate for 14 cases (Park et al, 2007) and Trotter and Mayer reported a 100% success rate for 7 cases (Trotter and Meyer, 2000). To the best of our knowledge, there is only one report that has compared the two techniques, which demonstrated some advantages of endonasal CDCR (Trotter and Meyer, 2000).…”