Related Experiment Video
Updated: Sep 23, 2025

Drug-Induced Sleep Endoscopy DISE with Target Controlled Infusion TCI and Bispectral Analysis in Obstructive Sleep Apnea
Published on: December 6, 2016
Is it necessary to perform a follow-up study after adenotonsillectomy in all children with moderate-severe
Genoveva Del-Río Camacho1, Roberto Torre Francisco2, Jesús Rodríguez Catalán2
1Servicio de Pediatría, Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain; Unidad Multidisciplinar de Sueño, Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain.
Insights
Adenotonsillectomy effectively treats severe obstructive sleep apnea (OSAS) in children. Parental perception of symptom resolution strongly correlates with normal post-surgery sleep study results, potentially streamlining follow-up care.
Area of Science:
- Pediatric Sleep Medicine
- Otolaryngology
- Respiratory Medicine
Background:
- Obstructive sleep apnea (OSAS) in children is commonly caused by enlarged adenotonsillar tissue, making adenotonsillectomy a primary treatment.
- Follow-up polysomnography (PSG) is recommended for moderate-to-severe OSAS cases, especially with obesity or craniofacial anomalies, due to reported residual OSAS post-surgery.
Observation:
- This retrospective study analyzed 41 healthy children with severe OSAS who underwent adenotonsillectomy.
- Post-operative PSG results were compared with parental impressions of their child's condition after surgery.
Findings:
- 80.48% of children achieved normal sleep study parameters (Apnea-Hypopnea Index [AHI] < 2/h) after adenotonsillectomy.
- A strong correlation existed between parental reports of "complete resolution" and normal follow-up PSG (90.62% had AHI < 2/h).
Implications:
- Parental feedback on clinical improvement after adenotonsillectomy can help identify children needing follow-up PSG.
- This approach may optimize resource allocation in sleep units by reducing unnecessary sleep studies.
Abstract:
Hypertrophy of adenotonsillar tissue is the most common cause of OSAS in otherwise healthy children, and therefore adenotonsillectomy is the first line treatment. Scientific societies recommend nocturnal follow-up PSG to assess for residual OSAS in children with preoperative evidence for moderate to severe OSAS, obesity, craniofacial anomalies that obstruct the upper airway and neurological disorders, based on the increasing trend of publications reporting residual OSAS after adenotonsillectomy. Follow-up PSG values in children with a pre-operative diagnosis of severe OSAS were analysed retrospectively, and compared to the parents' impression after ENT surgery. The study population included 41 healthy children with severe OSAS and adenotonsillar surgery. The percentage of children with normal PSG parameters (AHI < 2/h) after adenotonsillectomy was 80.48%. A very good correlation was observed between the parents' perception after treatment and the follow-up PSG parameters, specifically when the parents perceived that the patient had shown "complete resolution" (no snoring or apnoea), 90.62% of the children had an AHI < 2/h in the follow-up PSG, the maximum residual AHI being 2.6/h. In healthy children with no underlying pathology, the information provided by the parents on clinical progression after surgery could be useful and might enable the selection of those patients who require a follow-up study, avoiding overload in sleep units.
Related Concept Videos
Tonsillitis I: Introduction
Etiology
Three primary contributing factors have been identified.
Sleep Apnea
The condition is more prevalent among...
Suctioning the Nasopharyngeal Airway
Equipment Required
Chronic Pharyngitis
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...
Tonsillitis II: Management
Endotracheal Tube Extubation
Procedure
Extubation removes the endotracheal tube (ETT) from the patient on mechanical ventilation. It requires a well-coordinated, multidisciplinary approach involving physicians, nurses, respiratory therapists, and other healthcare professionals....

