Adult and Pediatric Obstructive Sleep Apnea Prof. Dr. Jehad Al-Baba Chief of E.N.T Department Everyone has brief pause in his or her breathing pattern called Apnea , the word comes from the Greek word meaning “Without Breathing” {Respiratory pause that exceeds 3 standard deviation of the mean breath time for an infant or a child at any particular age} There are three types of Apnea: - Obstructive, - Central, - Mixed. Cont. Apnea Obstructive apnea – cessation of airflow for at least 10 seconds with respiratory effort Central apnea – cessation of airflow for at least 10 seconds without respiratory effort Mixed apnea – characteristics of both for at least 10 seconds Hypopnea – hypoventilation secondary to partial obstruction Disorder Of breathing during sleep characterized by prolonged partial upper airway obstruction and /or intermittent complete obstruction (obstructive apnea) that disrupts normal ventilation during sleep and normal sleep patterns. Obstructive Sleep Apnea 85% of adult patients are male. Men 4%, Female 2%. 2/3rd obese. Contributes to HTN and cardiovascular disease. Increased motor vehicle accidents. Pathophysiology Pharyngeal collapse Decreased airway patency Increase in negative pressure Becomes a vicious cycle. Symptoms Snoring* Excessive daytime sleepiness* Restless sleep Personality changes Headaches Sexual dysfunction Job performance Sleep hygiene Bed partner’s input * Physical Exam Vital signs Head & Neck exam Flexible endoscopy Vital signs Height Weight Collar size Blood pressure Calculate BMI Wt (kg) / Ht (meters) squared Men >27.8, Women >27.3 Examination Tongue Palate Uvula Tonsils Nasal cavity Hyoid Mandible Maxilla Cephalometrics Standardized lateral radiographs Examines bony and soft-tissue structure Two-dimensional evaluation Lack of volumetric data Maxillomandibular surgery, oral appliances Polysomnogram EEG EKG Submental EMG Anterior tibialis EMG EOG Nasal/oral airflow Pulse oximetry Respiratory movement Sleeping position Esophageal manometry Treatment Nonsurgical modalities Surgical modalities Nonsurgical Treatment Weight loss Sleep hygiene Pharmacotherapy Nasal continuous positive airway pressure Oral appliances Nonsurgical Treatment Weight loss Get below “trigger weight” Diet, exercise, bariatric surgery, medications Sleep hygiene Avoidance of sedatives Positional changes Pharmacotherapy Protriptyline – decreases REM sleep Xanthine based drugs Steroids Antibiotics Nasal medications CPAP Titrated to limit all respiratory events 50-90% acceptance – better if daytime symptoms improved Side effects in 40-50% Oral appliances Advances the mandible Retains the tongue anteriorly UPPP Fujita (1981) Most common procedure 1st line tx for retropalatal collapse 10-50% success. Mandibular Osteotomy with Genioglossus Advancement Enlarges the retrolingual airway without disturbing dentition Prevents retrolingual collapse Tongue reduction Lingual tonsillectomy Laser midline glossectomy Lingualplasty Radiofrequency volumetric tissue reduction Nasal surgery Improved symptoms and CPAP Septoplasty Turbinate reduction Functional nasal reconstruction Tracheostomy Bypasses all areas of obstruction Virtually 100% effective Two indications Temporary procedure during airway reconstruction Severe OSA when CPAP refused, ineffective, or not tolerated or if other conditions exacerbated by the apneas Line the tract with skin flaps Lack of social acceptance Apnea in Childhood OSA result from: Adenotonsillar hypertrophy. Neuromuscular diseases. Craniofacial abnormalities . True OSA result in: Neurocognitive impairment. Behavioral problems. Failure to thrive. Cor pulmonal , particularly in sever cases. Enuresis. OSA Presented with the following symptoms Habitual (nightly) snoring. Disturbed sleep . Daytime neurobehavioral problems. Daytime sleepness may occur but is uncommon in young children. Anatomic factors : That narrow the upper airway. Adenotonsillar hypertrophy. Trisomy 21(down syndrome) . Other genetic or craniofacial syndromes. associated with (Midface hypoplasia, Small nasopharynx, Choanal atresia or stenosis, Macroglossia, Micrognathia or retrognathia and cleft palate). Anatomic factors : Obesity. Nasal obstruction. Laryngomalacia. Sickle cell disease. Velopharyngeal flap repair Neurologic factors : That decreased pharyngeal muscular dilator activity. Medications. Sedative. General anaesthesia. Brain stem disorders. Chiari-malformation. Birth asphyxia. Neuromuscular diseases. Muscular dystrophy. Cerebral palsy. OSA occurs in children of all ages from neonates to adolescents. It is thought to be most common in preschoolage children (which is the age when the tonsils and adenoids are the largest in relation to the underlying airway size). Occurs equally among boys and girls. The estimated prevalence of snoring in children is 3 to 12 %. OSA affect 1 to 10 %. Sedation anesthesia Muscle Weakness Sleep onset Decreased upper airway muscle activity Decreased CO2 Increased O2 Upper airway narrowing Relief of obstruction Restoration of airflow Obstructive,Hypoventilation &Apnea Increased upper airway muscle activity Hypoxemia Hypercapnia Arousal from sleep Obesity Small Airway Enlarged tonsil & Adenoids Craniofacial anomalies Increased ventilatory effort To identify patients who are at risk for adverse outcomes. Avoid unnecessary intervention in patients who are not at risk for adverse outcomes. Evaluate which patients are at increased risk of complications resulting from adenotonsillectomy, so that appropriate precaution can be taken. HISTORY In children younger than five years. Snoring is the most common complaint. Symptoms reported by parents: Mouth breathing Diaphoresis Paradoxicrib-cage movements Restlessness Frequent awakenings α In children five years and older. ζ ζ ζ ζ ζ Enuresis Behavior problems Deficient attention span Failure to thrive In addition to snoring α Compared with adult. α Fewer children with OSA report excessive daytime somnolence, with the exception of obese children. In extreme cases of OSA in children. Cor pulmonal and Pulmonary hypertension may be the presenting problems. Poor growth and FTT are more common in children with sleep-disordered breathing. Growth velocity increases after adenotonsillectomy Decreased production of growth hormone during fragmented sleep may contribute further to poor growth. Obstructive Sleep Apnea Screening Quiz Do your children have any of the following symptoms that can be associated with sleep apnea? continuous loud snoring episodes of not breathing at night (apnea) failure to thrive (weight loss or poor weight gain) mouth breathing enlarged tonsils and adenoids problems sleeping and restless sleep excessive daytime sleepiness morning headaches daytime cognitive and behavior problems, including problems paying attention, aggressive behavior and hyperactivity, which can lead to problems at school Evaluation of the childs general apperance,with careful attention to craniofacial characteristics, such as: α Midface hypoplasia α Micrognathia Evaluation for nasal obstruction depends on the child's age. α Septal deviation α Naso-lacrimal cysts α Choanal atresia α Nasal aperture stenosis Must be considered in infants 2-Lateral neck radiography. fig 2 Arrows indicate prominent adenoidal tissue in the posterior nasopharynx, resulting in upper airway narrowing WHAT ABOUT MANAGMENT MEDICAL CPAP Antibiotics Weight loss Nasal steroids Systemic steroids SURGICAL Adenotonsillectomy Uvulopalatopharyngoplast y Tracheotomy OSA is more common in children with craniofacial syndromes. 1-Children who have syndromes with craniosynostosis: -Apert's syndrome, -Crouzon's disease, -Pfeiffer's syndrome, -Saether-Chotzen syndrome, -abnormalities of the skull base, -Accompanying maxillary hypoplasia, May have nasopharyngeal obstruction 2-Children with syndromes that involve micrognathia: -Treacher collins syndrome, -Pierre Robin syndrome, -Goldenhar's syndrome, Become obstructed at the hypo pharyngeal level 3-Children with Trisomy 21 : A narrow upper airway combined with Macroglossia and hypotonic musculature predispose them to OSA The surgical management of craniofacial syndromes and OSA in children frequently requires more than standard adenotonsillectomy. In children with midfacial hypoplasia, craniofacial advancement may be indicated. Glossopexy, mandibular distraction or advancement, or tongue suspension should be considered in patients with micrognathia