The aim of this prospective study is to evaluate the efficacy and safety of endoscopic suction diathermy adenoidectomy as regard the operative time, adenoid tissue remnant, blood loss, and clinical events like pain, halitosis, postoperative hemorrhage, speech changes and recurrence.

Suction diathermy adenoidectomy is a procedure that uses thermal energy generated by electric current to ablate adenoid which is removed using suction. This procedure was described in 1997 and the technique has the advantage of complete tissue removal with reduced blood loss and intraoperative time, also reduced post-operative complications as postoperative hemorrhage , nasality and lower recurrence rate.

Inclusion Criteria:

1. Obstructive symptoms such as long-lasting nocturnal snoring, sleep apnea, and open mouth breathing, bilateral nasal obstruction, and/or bilateral nasal discharge.
2. Adenoid hypertrophy is the only cause of nasal obstruction.
3. Radiography evidence of adenoid hypertrophy encroaching on the airway column.
4. Age under 15 years.
5. Sex: both males and females.
6. All patients are generally well and fit for surgery.

Exclusion Criteria:

1. Presence of chronic diseases such as chronic heart diseases, chronic liver diseases, chronic renal diseases, and diabetes mellitus.
2. Patients with other causes of nasal obstruction such as acute rhinitis, allergic rhinitis, septal deviation, inferior turbinate hypertrophy, antrochoanal polyp, nasal polypi or anatomical deformities (Choanal atresia).
3. Cases with submucous cleft palate and cases with a previous history of cleft palate repair.
4. Patients with bleeding or coagulation defects.
5. Patients with atrophic rhinitis.
6. Patients with recurrent adenoid.