the challenging pediatric airway: new solutions for old...
TRANSCRIPT
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The Challenging Pediatric Airway: New Solutions for "Old" Problems
Judy Audas CRNA, DNAP, MSN
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Overview• Developmental airway anatomy• Compare/contrast the pediatric and adult airways• Airway challenges in children• Airway assessment and congenital anomalies• To cuff or not to cuff …… the ETT• The dreaded laryngospasm • "Old" surgical strategies• "New" surgical strategies
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Developmental Airway Anatomy• Carnegie system• Majority of
airway structural growth is in the 1st 8 weeks of gestation
• As the respiratory and alimentary systems develop, the vertical position of the larynx changes
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Developmental Airway Anatomy• Pharyngeal arches
develop into laryngeal and tracheal structures
• Facial nerve, glossopharyngeal nerve, superior laryngeal nerve, recurrent laryngeal nerve development
• Complete by 8 weeks (stage 23)
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Developmental Airway Anatomy
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Pediatric vs Adult Airway
• 5 notable differences• the position of the
larynx• the shape of the
epiglottis• the vocal cords• the mucous
membranes• the cricoid ring
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Origin of Airway Problems• Infectious/inflammatory
• Acute epiglottitis, croup, bacterial tracheitis, bronchiolitis, retropharyngeal abscess
• Trauma/accidents• Foreign body aspiration, airway burn, external trauma, post-
intubation injury• Congenital
• Choanal atresia, laryngotracheomalacia, midface or mandibular anomaly, syndromic anomalies
• Other factors• Tumors, intrinsic pulmonary disease (BPD), cardiac defects,
central nervous system defects, metabolic causes
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Pediatric Airway Assessment
• Mallampati score………..……..good luck with that!• Parental History******• Observation of breathing patterns• Sound of cough
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Pediatric Airway Differential Diagnosis• Signs & symptoms of obstruction
• Stridor• Inspiratory - indicates obstruction is extrathoracic (croup,
epiglottitis)• Expiratory – indicates obstruction is intrathoracic
(tracheomalacia, bronchomalacia)• Wheezing
• RSV bronchiolitis croup• Drooling, dysphagia, sore throat, laryngeal tenderness
• Obstruction is likely above the glottis• Barky cough with loud inspiratory stridor = subglottic
and extrathoracic (foreign body in airway)
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Common Airway Challenges• Croup – from URI
• Fever (usually low grade)• Hoarseness, barky cough, variable
degree of inspiratory stridor, and respiratory distress
• Inflammation and edema in the tracheobronchial tree
• Also called laryngotracheobronchitis• Symptoms are r/t subglottic
edema/inflammation• Less than 5 years of age
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Common Airway Challenges Inflammatory
• Acute Epiglottitis
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Common Airway Challenges Inflammatory
• Bacterial tracheitis
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Common Airway Challenges Syndromes
• Apert syndrome• Beckwith-Weideman• Crouzan• Down• Goldenhar• Klippel-Feil• Pierre Robin• Pfeiffer• Treacher Collins
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Common Airway Challenges
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Cuffed ETTs in Pediatrics……What?!?
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