P300 latency delay may reflect some sort of cognitive impairment in patients with adenoid hypertrophy. This delay was reversible after adenoidectomy. Event-related potentials may help for assessment of cognitive functions in patients with adenoid hypertrophy.

Back ground: the classic surgical technique performed with an adenoid curette or an adenotome has recently developed by the introduction of the endoscopic sinus surgery Objectives: to compare the safety and efficacy of coblation adenoidectomy versus conventional curettage adenoidectomy.Patients and methods: This study was conducted on 50 patients who came to outpatient clinics in the Otolaryngology department, of age group between 4-14 years with adenoids hypertrophy from February 2019 to February 2020.Results: results revealed that the mean time of operation, it was11.1 ± 1.5 min in group A, but was 14.2 ± 1.8 min in group B, with statistical significance relationship P=000. Regarding the mean of Intra operative blood loss, it was32.4±3.2 ml in group A, but was 2.5±1.2 ml in group B, with statistical significance relationship P=000. Conclusion:The advent of endoscopes made a significant impact in adenoidectomy. Endoscopic assisted adenoidectomy is a natural progression of this technology to allow a more complete adenoidectomy. From this we concluded that the overall advantages of coblation adenoidectomy, compared with cold curettage, are the decrease in intra and post-operative bleeding, better safety, precision of adenoid removal and less injury to adjacent tissues.