Success Rate of Endonasal Dacryocystorhinostomy

ABSTRACT

Primary success rate of endonasal DCR has been reported as lower than that of the conventional procedure. Endonasal DCR has been performed from July 1991 to October 1994, with a follow-up period of 6 to 37.3months(mean, 14.2months). According to the period of the operation, 156 eyes of 132 patients were classified into three groups Group 1;47 eyes between July 1991 and June 1992. Group 2;44 eyes between July 1992 and June 1993, and Group 3;65 eyes between July 1993 and October 1994. Success rates of the primary operation were 68.1% in Group 1, 84.1% in Group 2, and 92.3% in Group 3 respectively. The success rate of Group 3 reached almost similar to that of the conventional procedure. Improvement of success rate may be owing to appropriate preoperative evaluation, skillful surgical technique, and careful postoperative management.