Esophagus review 1 Nir Hus MD., PhD.
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Esophagus
Nir Hus MD, PhD.
ABSITE Review
Department of Surgery
Mount Sinai Medical Center
Nir Hus MD., PhD. Ryder Trauma Center Jackson Memorial Hospital
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Esophagus: Anatomy
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Esophagus: Anatomy
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Esophagus: Anatomy
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Esophageal Studies• Anatomic
– Esophagogram– CT-Scan– Endoscopy(Biopsy/Ultrasound)
• Functional– Esophageal manometry– 24 hour pH probe
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Esophagus: Physiology
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Esophageal Manometry
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Esophageal Manometry: Swallowing
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Characteristics of Lower Esophageal Sphincter
• Intramural pressure• Length of LES• Abdominal length LES
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Manometry LES: Pressure/Length Relationship
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24-Hour pH Monitoring
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Esophageal Motility Disorders• Esophageal Diverticula
– Zenker’s (pulsion)– Epiphrenic– Traction (pulsion)
• Functional Disorders– Achalasia– Diffuse esophageal spasm– Nutcracker esophagus
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Zenker’s Diverticulum
• Dysphagia• Regurgitation undigested food• Aspiration• Unyielding cricopharingeous• Dx: barium swallow• No endoscopy• Tx: diverticulectomy/myotomy• Left cervical incision
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Achalasia• Dysphagia and regurgitation undigested food• Substernal/epigastric pain• Diagnosis and work-up: CXR, UGIS• endoscopy/bx: esophagitis, r/o Ca• Manometry:
– aperistalsis – incomplete relaxation of LES– High resting pressure LES (>30 mmHg)
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Achalasia
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Achalasia: Treatment• Esophageal dilations, success rate: 70%• Botulinum toxin injections: short lived• Surgery: Heller myotomy, success rate: 95%• Indications:
– children– vigorous achalasia– medical failures
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Achalasia: Heller Operation
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Diffuse Esophageal Spasm and Nutcracker Esophagus
• Intermittent chest pain and dysphagia• Negative cardiac work-up• Manometry: normal LES, tertiary peristalsis• Treatment:
– Medical: reduce stress and precipitating factors– NTG, Isosorbide, Nifedipine– Surgery: Full length myotomy, success rate 65%
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Nutcracker Esophagus
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GERD
• Abnormal exposure of distal esophagus to refluxed gastric juice• Etiology
– Mechanically defective LES (60%)– Poor esophageal clearance– Gastric outlet obstruction– Functional delayed gastric emptying– Increased gastric acid secretion– inappropriate relaxation of LES
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GERD
• Symptoms– Substernal/epigastric burning pain– Regurgitation– Effortless emesis– Dysphagia– Flatulence– Atypical symptoms
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GERD
• Complications (20%)– Esophagitis– Stricture– Barrett’s esophagus– Ulceration– Esophageal shortening
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GERD: Work-up• UGIS and EGD• Manometry: characterizes LES and motility
– LES pressure < 6 mm Hg– Overall length < 2 cm– Abdominal length < 1 cm
• Esophageal pH testing (sens/specif - 90%)– pH < 4 more than 1 hour and a half/24 hours (6%)– Composite score derived from: total time pH <4, upright time pH <4, supine time pH <4, # episodes, episodes >5 min, longest episode.
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GERD: Treatment• Medical
– Postural alterations– Dietary alterations– Pharmacologic
• Surgery– Symptomatic reflux, manometric evidence of incompetent LES, and failure of medical therapy– Development of complications
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Nissen Fundoplication
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Belsey-Mark IV
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Collis Gastroplasty
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Barrett’s Esophagus• Columnar metaplasia of the distal esophagus at least 3-cm above GE junction or any length with intestinal metaplasia• Incidence
– 2% of all endoscopies– 15% of all esophagitis
• Types– Fundic– Junctional– Intestinal
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Barrett’s Esophagus• Dx; endoscopy/bx• Complications
– Ulceration (50%)– Stricture (30%)– Low grade dysplasia (5-10%)– High grade dysplasia/ Ca in situ– Adenocarcinoma (2%)
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Barrett’s Esophagus• Asymptomatic uncomplicated Barret’s
– Surveillance and yearly biopsies
• Symptomatic uncomplicated Barret’s– treat as GERD
• Barret’s Ulcers– aggressive medical therapy, recurrence or failure to heal - surgery
• Barret’s Strictures– medical management and esophageal dilation– recurrence or persistence - surgery
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