Esophageal Motility2005

Esophageal Motility2005 - Esophageal Motility Disorders...

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Esophageal Motility Disorders
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Esophageal Motility Dz Esophageal Disorders Motility Reflux Infectious Neoplastic Miscellaneous
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Esophageal Motility Dz Esophageal Anatomy Upper Esophageal Sphincter ( UES ) Lower Esophageal Sphincter ( LES ) Esophageal Body 18 to 24 cm
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Esophageal Motility Dz Normal Phases of Swallowing Voluntary oropharyngeal phase – bolus is voluntarily moved into the pharynx Involuntary UES relaxation peristalsis (aboral movement) LES relaxation Between swallows UES prevents air entering the esophagus during inspiration and prevents esophagopharyngeal reflux LES prevents gastroesophageal reflux peristaltic and non-peristaltic contractions in response to stimuli capacity for retrograde movement (belch, vomiting) and decompression
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Esophageal Motility Dz Normal Swallowing Cortical Swallowing Areas Swallowing Center Motor Nuclei Frontal cortex Brainstem
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Esophageal Motility Dz Motility Disorders upper esophageal UES disorders neuromuscular disorders esophageal body achalasia diffuse esophageal spasm nutcracker esophagus nonspecific esophageal dysmotility LES achalasia hypertensive LES primary disorders achalasia diffuse esophageal spasm nutcracker esophagus nonspecific esophageal dysmotility secondary disorders severe esophagitis scleroderma diabetes Parkinson’s stroke
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Esophageal Motility Dz Motility Disorders diagnostic tools cineradiology or videofluoroscopy (MBS) barium esophagram esophageal manometry endoscopy
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Esophageal Motility Dz Normal Manometry
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Esophageal Motility Dz Upper Esophageal Motility Disorders cause oropharyngeal dysphagia (transfer dysphagia) patients complain of difficulty swallowing tracheal aspiration may cause symptoms pharyngoesophageal neuromuscular disorders stroke Parkinson’s poliomyelitis ALS multiple sclerosis diabetes myasthenia gravis dermatomyositis and polymyositis upper esophageal sphincter (cricopharyngeal) dysfunction
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Esophageal Motility Dz UES Disorders cricopharyngeal hypertension elevated UES resting tone poorly understood (reflex due to acid reflux or distension)
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This note was uploaded on 12/24/2011 for the course STEP 1 taught by Professor Dr.aslam during the Fall '11 term at Montgomery College.

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Esophageal Motility2005 - Esophageal Motility Disorders...

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