obstructive sleep disorders in breathing in childhood adenotonsillar hypertrophy a. kaditis, md
DESCRIPTION
OBSTRUCTIVE SLEEP DISORDERS IN BREATHING IN CHILDHOOD Adenotonsillar Hypertrophy A. Kaditis, MD. Pediatric Pulmonology Unit, Sleep Disorders Laboratory First Department of Pediatrics University of Athens School of Medicine and Aghia Sophia Children’s Hospital Athens, Greece. - PowerPoint PPT PresentationTRANSCRIPT
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OBSTRUCTIVE SLEEP DISORDERS IN BREATHING IN CHILDHOOD
Adenotonsillar Hypertrophy
A. Kaditis, MD
Pediatric Pulmonology Unit, Sleep Disorders Laboratory
First Department of Pediatrics
University of Athens School of Medicine
and Aghia Sophia Children’s Hospital
Athens, Greece
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Obstructive Sleep-Disordered Breathing (SDB)
Spectrum of abnormal respiratory patterns during sleep characterized by snoring and increased respiratory effort
Primary snoring Upper airway resistance syndrome Obstructive hypoventilation Obstructive sleep apnea (OSA)
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Adenotonsillar Hypertrophy
Pathophysiology of Obstructive SDB
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A Mechanical Model for Obstructive Sleep-Disordered Breathing (SDB)
Upper Airway Resistance
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Arens et al. Changes in Upper Airway Size during Tidal Breathing in Children with OSAS. AJRCCM 2005;171:1298
Healthy OSA
Inspiration
Expiration
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Symptoms of Obstructive SDB directly associated with intermittent upper airway obstruction
Snoring
Reported apneas during sleep
Difficulty breathing during sleep
Mouth breathing
Restless sleep
Frequent arousals
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Conditions affecting Upper Airway Resistance and/or Pharyngeal Collapsibility
Adenotonsillar hypertrophy, allergic rhinitis, nasal septum deviation, nasal polyps
Obesity
Craniofacial abnormalities
Neuromuscular disorders
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Upper Airway Dysfunction and Adenotonsillar Hypertrophy
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Adenotonsillar Hypertrophy
Pathogenesis of Adenotonsillar Tissue
Hypertrophy
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Risk factors Dependent variable: tonsillar hypertrophy
OR (95% CI)
pvalue
Age 0.97 (0.90-1.04)
0.321
Gender 1.03 (0.64-1.65)
0.906
Obesity 0.69 (0.38-1.25)
0.219
PassiveSmoking
0.96 (0.60-1.53)
0.851
History of wheezing 2.23(1.37-3.63)
0.001
Kaditis et al. Associations of Tonsillar Hypertrophy and Snoring with History of Wheezing in Childhood. Pediatr Pulmonol 2010;45:275
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Dayyat et al. Leukotriene pathways and in vitro adenotonsillar cell proliferation in children with obstructive
sleep apnea. Chest 2009;135:1142
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Goldbart et al. Leukotriene Modifier Therapy for Mild SDB. AJRCCM 2005; 172: 364
OSA Recurrent tonsillitis
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Kaditis et al. CysLT-Rs in Tonsillar Tissue of Children with OSA. Chest 2008;134:324-31
OSA Recurrent tonsillitis
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Adenotonsillar Hypertrophy
Does Adenotonsillectomy Cure OSA?
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Brietzke et al. The Effectiveness of AT in the Treatment of Pediatric OSA. Otolaryngol Head Neck Surg 2006;134:979
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Garetz et al. Behavior,
Cognition and Quality of Life after AT for
Pediatric SDB: Summary of the
Literature. Otolaryngol Head Neck
Surg 2008;138:s19-26
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Pediatrics 2006;117:e61-6
Nasal budesonide + po montelukast vs. Placebo
for 12 weeks in children with residual SDB pAT
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Bhattarjee et al. AT outcomes in Treatment of OSA in Children. AJRCCM 2010; 182:676-683
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Amin et al. Growth Velocity Predicts Recurrence of SDB 1 Year After AT. AJRCCM 2008;177:654-9
70 children (mean age: ≈ 10 y.o.)
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Guilleminault et al. AT and OSA in Children: A Prospective Study. Otolaryngol Head Neck Surg 2007;136:169-75
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Villa et al. Randomized controlled study of an oral jaw-positioning device for treatment of OSA in children with malocclusion. AJRCCM 2002;165:123-7
Before After
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Conclusions
Adenotonsillar hypertrophy is a major risk factor for obstructive sleep-disordered breathing in childhood
Cysteinyl leukotrienes promote adenotonsillar hypertrophy
Residual sleep-disordered breathing post AT may be the result of co-existing nasal inflammation, obesity or craniofacial abnormalities.