Medical and Surgical Management of Gastroesophageal Reflux Disease (GERD) Edward Auyang, MD, MS, FACS Assistant Professor of Surgery Director of Minimally Invasive Surgery Residency Program Director, General Surgery Disclosures • No financial disclosures • I do perform anti-reflux operations… Objectives • • • • Recognize symptoms of GERD Learn the diagnostic tests to evaluate GERD Learn the medical treatments for GERD Learn the surgical treatments for GERD Epidemiology • 61 million Americans complain of heartburn and indigestion – 40% monthly – 20% weekly – 7% daily Anatomy • Barriers to GERD – Esophageal peristalsis – Intra-abdominal segment of esophagus – Lower esophageal sphincter (LES) tone – Diaphragmatic crura – Phrenoesophageal membrane – Angle of His • Normally – Transient relaxation of LES Pathophysiology Pathophysiology • Primary mechanisms – Spontaneously, accompanying transient LES relaxations – Stress reflux associated with a weakened LES – Increased intra-abdominal pressure – Dysfunctional LES/Hiatal hernia • Reflux -> mucosal injury -> weakened LES and/or esophageal dysmotility Clinical Presentation • Typical vs. Atypical Clinical Presentation • Typical symptoms – – – – – – Heartburn Regurgitation Water brash Acid brash Nocturnal Aspiration Dysphagia • Atypical symptoms – – – – – – – Chronic nausea Asthma Aspiration Cough Hoarse throat Dental erosions Chest pain Diagnostic Studies Diagnostic Studies • Anatomic – EGD (± biopsy) – RULE OUT CANCER/Barrett’s! – Contrast radiographs (UGI Esophagram) • Physiologic – 24-hr pH testing (on/off medication) – Esophageal manometry – Scintigraphy (gastric emptying) EGD Upper GI Manometry 24 Hr pH Monitoring Treatment - Medical Treatment - Medical • Life style modifications – Weight loss – Alteration of diet • Avoid chocolate, peppermint, fat, onions, garlic, alcohol, caffeine, and nicotine • Nothing by mouth for 2-3 hr before bedtime – Elevation of head of bed 6-10 in. Limit potentially precipitating activities, such as bending over or strenuous exercise • Medication Medication Options • Antacids (Neutralize) – Tums, Rolaids, Maalox • H2 Blockers – Ranitidine, famotidine • PPI – Omeprazole, pantoprazole, esomeprazole, etc. – Beware of osteoporosis/penia, fundic polyps • Max Omeprazole 40mg BID Treatment – Surgical Treatment – Surgical • Complications of GERD unresponsive to medical therapy – – – – Esophagitis Stricture Recurrent aspiration or pneumonia Barrett esophagus • Continued symptoms despite maximal medical treatment • Symptomatic paraesophageal hernia • Patient desire to discontinue PPI therapy – Financial burden – Lifestyle choice – Young age • Intolerance to proton pump inhibitor therapy Basic Tennets of Surgery • Restoration of an effective LES • Creation of a gastroesophageal valve • Fundoplication requires wrapping the fundus itself, not the body of the stomach, around the esophagus, rather than around the proximal body of the stomach • The fundoplication should reside within the abdomen without tension, and the crura should be closed adequately to prevent migration of the stomach or the fundoplication into the chest • Complete Vs. Partial wrap Operation Operation Operation Post-op Care • Hospitalization • Diet • Activity Outcomes • Lap Nissen Fundoplication Success Rate: 90-95% • Gas Bloat • Dysphagia • Hernia/GERD Recurrence GERD and Obesity Case Scenario • 56yoM presents to your office with Heartburn • • • • • HPI – What do you want to know? PMHx – HTN, GERD, HL PSHx – Cholecystectomy PE – HR:75 BP:122/85 O2: 97% RA BMI 30 Workup ? Questions? Results GERD and Barrett’s Disease • 60% of patients with clinical GERD will have normal-appearing esophageal mucosa at endoscopy • Barrett esophagus is estimated in 10% of patients with GERD • GERD + Barrett esophagus have 0.4% per patient-year risk of adenocarcinoma Vs. 0.07% per patient-year risk for patients with GERD but without Barrett esophagus Esophagitis Grading System (Endoscopic) • Los Angeles Classification System – – – – Grade A (≤5 mm in length) Grade B (>5 mm in length) Grade C (continuous between two mucosal folds) Grade D (≥75% of esophageal circumference)