[Analysis of prognostic factors in endoscopic surgery for juvenile nasopharyngeal angiofibroma].

OBJECTIVE

Analyzing the prognostic factors in endoscopic surgery of juvenile nasopharyngeal angiofibromas (JNA).

METHOD: Forty-seven records of JNA, treated with the endoscopic, from 2002 to 2008 were reviewed retrospectively. Previous surgery in other hospitals, sites involved, whether selective embolization was performed before surgery, feeding vessels, operative techniques and follow-up results were recorded. Evaluated factors include previous surgery for resection of JNA, vascular supply from carotid artery, surgery after selective embolization, involvement of cavernous bone in the root of pterygoid process, greater wing of sphenoid bone, interpterygoid fossa, infratemporal fossa and orbit. Chi-square test was used.

RESULT: Operations were done under general anesthesia. The follow-up time was 12 to 87 month (median 35 month). During follow up, six patients presented recurrent lesions. Chi-square test showed that deep invasion of the cavernous bone in the root of pterygoid process was related to recurrence (P<0.05). There was no statistically significant difference between other factors and recurrence. Imaging examination showed that recurrent tumor was around the root of pterygoid process.

CONCLUSION

Deep invasion of the cavernous bone in the root of pterygoid process which was related to recurrence deserve close attention before and after endoscopic surgery.