* For Best Viewing: Open in Slide Show Mode Click on icon or From the View menu, select the Slide Show option * To help you as you prepare a talk, we have included the relevant text from ITC in the notes pages of each slide © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. Terms of Use The In the Clinic® slide sets are owned and copyrighted by the American College of Physicians (ACP). All text, graphics, trademarks, and other intellectual property incorporated into the slide sets remain the sole and exclusive property of ACP. The slide sets may be used only by the person who downloads or purchases them and only for the purpose of presenting them during not-forprofit educational activities. Users may incorporate the entire slide set or selected individual slides into their own teaching presentations but may not alter the content of the slides in any way or remove the ACP copyright notice. Users may make print copies for use as hand-outs for the audience the user is personally addressing but may not otherwise reproduce or distribute the slides by any means or media, including but not limited to sending them as e-mail attachments, posting them on Internet or Intranet sites, publishing them in meeting proceedings, or making them available for sale or distribution in any unauthorized form, without the express written permission of the ACP. Unauthorized use of the In the Clinic slide sets constitutes copyright infringement. © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. in the clinic Gastroesophageal reflux disease © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. What causes GERD? Prolonged exposure to reflux of gastric contents Transient relaxations of lower esophageal sphincter expose esophagus to stomach acid and contents Factors that increase exposure Increased intra-abdominal pressure (obesity, pregnancy) Decreased esophageal or gastric motility Xerostomia Hiatal hernia Increased esophageal sensitivity may predispose to more severe symptoms or tissue damage Increased acid production is not an important cause of GERD Zollinger-Ellison syndrome the rare exception © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. What symptoms and signs should prompt clinicians to consider GERD? Typical esophageal symptoms Heartburn Regurgitation Atypical esophageal symptoms Epigastric discomfort Noncardiac chest pain Nausea, satiety, dysphagia, globus, eructation, hematemesis Extraesophageal symptoms Cough, wheezing Sore throat, hoarseness Dental erosions © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. When should clinicians try an empirical therapeutic trial of acid suppression therapy to support a preliminary diagnosis? When upper GI complaints are vague and symptom questionnaire is suggestive of GERD Reflux Disease Questionnaire: 12-question instrument When esophageal & extraesophageal symptoms present Trial of PPI: take once or twice daily for 1 to 2 weeks Assure proper dosing and compliance If only partial improvement occurs, consider twice-daily dosing or switch to another PPI before declaring nonresponder © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. When should clinicians consider upper endoscopy in evaluating patients with possible GERD? Indications for EGD in Known or Suspected GERD Typical GERD symptoms that persist after a PPI trial Alarm symptoms (dysphagia, bleeding, unexplained iron deficient anemia, weight loss, vomiting, epigastric mass) Atypical GERD symptoms (epigastric pain, early satiety, food impaction): to exclude other upper GI diseases Confirm healing after severe erosive esophagitis Screen for Barrett esophagus in men >50 years with chronic GERD and additional risk factors Surveillance of known Barrett esophagus © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. What other diagnoses should clinicians consider in patients with suspected GERD? Esophageal disorders Cancer (squamous or adenocarcinoma) Eosinophilic esophagitis Functional heartburn Motility disorders (achalasia, spastic disorders, hypotensive lower esophageal sphincter) Nonreflux esophagitis (infectious, pill- or radiationinduced) The rumination syndrome Strictures, webs, or rings Zenker’s diverticulum Continued © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. Other gastrointestinal disorders Biliary colic Gastritis Gastroparesis Hiatal hernia Nonulcer dyspepsia Peptic ulcer disease Nongastrointestinal disorders Chest wall pain Coronary artery disease Oropharyngeal and laryngeal disorders © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. What other lab tests should clinicians consider when the diagnosis is uncertain? Ambulatory reflux monitoring Esophageal manometry For refractory cases For pre-op testing for anti-reflux surgery Barium radiography (esophagram &/or upper GI series) For primary complaint of dysphagia For pre-op or post-op testing for anti-reflux surgery Laryngoscopy Presence of laryngeal erythema, edema, or other abnormalities not specific for GERD © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. Is there any connection between GERD and Helicobacter pylori infection? Diagnose and manage as separate entities Both may present with dyspepsia No reason to test for H. pylori in patients with typical symptoms of heartburn or regurgitation Patients with H. pylori gastritis may experience increased GERD symptoms even when H. pylori is eradicated Long-term PPI use may increase risk for atrophic gastritis in patients with undiagnosed H. pylori infection Routinely checking H. pylori status in patients on longterm PPIs is not recommended © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. When should clinicians consider gastroenterology consultation during the evaluation of GERD? Typical symptoms do not respond to an empiric PPI trial Atypical symptoms overlap with those of other esophageal or gastric disorders Alarm symptoms High risk of Barrett esophagus and adenocarcinoma © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. CLINICAL BOTTOM LINE: Diagnosis... Empiric diagnosis of GERD is based on Presence of typical esophageal symptoms Response to a PPI trial Use of patient-reported questionnaires If no response to PPI trial or if symptoms are extraesophageal or atypical: consider other disease possibilities Consider EGD when alarm signs are present (dysphagia, bleeding, weight loss, vomiting or epigastric mass) Don’t use barium radiography or laryngoscopy for GERD Dx Reserve other tests for refractory or complex cases © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. What is the role of dietary modification in the treatment of GERD? Dietary modifications may improve symptoms or reduce complications, but evidence isn’t strong Some foods may lower LES tone (carminatives) Other foods may irritate inflamed esophageal mucosa (citrus) Patients may report improvement when avoiding particular substances May control uncomplicated GERD without medical therapy © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. Are behavioral interventions effective in the treatment of GERD? Weight loss Smoking cessation Elevating head by 6-8 inches when in bed Avoiding meals in the last 2-3 hours before bed © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. Which medications cause or exacerbate GERD, and how should clinicians counsel patients regarding their use? Medications that exacerbate GERD By decreasing LES pressure and/or slowing esophageal clearance CCBs, nitrates, anticholinergics, α-adrenergic antagonists, prostaglandins, theophylline, sedatives Medications that irritate already inflamed tissue Aspirin, NSAIDs, bisphosphonates Decide whether to avoid these medications on a case by case basis © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. Which non-prescription medications are effective in the management of GERD? Antacids neutralize stomach acid to relieve heartburn Best used “on-demand” for infrequent symptoms Regular or frequent use a marker of uncontrolled GERD H2-receptor antagonists (H2RAs) Inhibit histamine binding on gastric parietal cell receptor Help heal erosive esophagitis and improve symptoms Best used “on-demand” for infrequent symptoms in patients with symptoms after stopping initial PPI therapy Use when PPIs not tolerated or contraindicated Use limited by tachyphylaxis © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. When should clinicians consider prescription medications? PPIs First-line agents for patients with erosive disease or with typical esophageal symptoms Irreversibly inhibit parietal cell proton pump Most efficacious when taken 30 to 60 minutes before eating More potent acid suppressors than H2RAs Initial therapy: 8-week course of once daily PPI Maintenance therapy indicated if GERD symptoms persist Continued © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. tLESR inhibitors (baclofen) GABA-B agonist increases lower esophageal sphincter tone Prokinetic agents (metoclopramide) Promote gastric emptying Mucosal protectant (sucralfate) Binds to inflamed mucosa Antidepressants (SSRIs, tricyclic antidepressants) May modulate visceral pain sensation due to acid exposure especially in hypersensitive patients © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. How should clinicians select from among available antireflux medications? No real efficacy differences within same medication class Modest superiority for esomeprazole vs. other PPIs Dexlansoprazole can be dosed at any time of day Immediate release omeprazole-sodium bicarbonate may improve nighttime gastric pH compared to other PPIs Few data to support high- or double-dose of any PPI other than acute healing of esophagitis Idiopathic side effects (diarrhea, constipation, headache) may occur with one PPI but not another Pregnancy may affect medication selection © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. How long should patients continue pharmacologic therapy for GERD? Complicated GERD Erosive disease, stricture, or Barrett esophagus Indefinite PPI maintenance therapy avoids relapse Decreases risk of dysplasia development Uncomplicated GERD Consider maintenance therapy if symptoms recur Make every attempt to taper and minimize medication use Manage with intermittent or on-demand PPI therapy Consider ‘step-down’ approach by using H2RAs on-demand Balance symptom control against cost, inconvenience, and potential side effects of chronic PPI use © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. What are the adverse effects of long-term acid suppression therapy? Gastric acid aids in vitamin and mineral absorption PPIs may increase iron deficiency or pernicious anemia risk PPIs may increase hip fracture risk Gastric acid aids in destruction of ingested potentially pathogenic bacteria PPIs may increase risk for enteric infections (C. difficile) Pneumonia may be more common during sh-term PPI use PPI + clopidogrel may increase cardiovascular risk Long-term PPI use could predispose to intestinal metaplasia or gastric malignancy © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. When should clinicians consider surgical therapy for GERD? Surgical anti-reflux therapy: laparoscopic fundoplication Long-term treatment option with similar efficacy to medical Rx for some Those with typical symptoms who respond to PPIs but wish to discontinue use Those with continued symptoms / damage despite PPIs Evidence doesn’t support surgery for other patients Those with atypical symptoms or who don’t respond to PPIs Those with Barrett esophagus who wish to prevent cancer Bariatric surgery may be a treatment option for morbidly obese patients with GERD © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. Is it necessary to evaluate for Barrett esophagus periodically? Estimated to occur in up to 10% with chronic GERD Annual risk of esophageal adenocarcinoma is low (≈ 0.12%) even in patients with Barrett esophagus Consider endoscopy for men >50 who have had GERD ≥5 yrs and who are overweight or have other risk factors No role for periodic screening endoscopy in patients with uncomplicated GERD No role for periodic screening endoscopy in patients with normal index endoscopy performed for above indications © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. How should clinicians manage patients once Barrett esophagus is present? Periodic surveillance can lead to earlier cancer Dx In absence of dysplasia, use endoscopy every 3-5 years Continue PPIs Document presence of absence of dysplasia Risk of progression to adenocarcinoma 0.1% to 0.5% per patient-year for non-dysplastic Barrett esophagus Risk of progression to adenocarcinoma 5%-20% for dysplastic tissue Data support endoscopic eradication therapy with radiofrequency ablation for high- and low-grade dysplasia © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. How frequently should clinicians see patients with GERD and what are the components of good follow-up? At least annually if chronically taking PPIs or H2RAs Assess symptom character, frequency, and severity Check for alarm signs Provide counseling to reduce exacerbating factors Taper medical therapy to lowest effective dose Reassure patients that risk for developing complicated disease is very low in uncomplicated GERD Even with continued symptoms of heartburn and reflux © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. When should clinicians consider gastroenterology referral for treatment of a patient with GERD? Alarm symptoms develop in context of previously wellmanaged GERD Patients are interested in anti-reflux procedures Patients are at high risk of Barrett esophagus and adenocarcinoma Patients have prior documented severe esophagitis or Barrett esophagus Most gastroenterologists happy to assist in all aspects of care © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1. CLINICAL BOTTOM LINE: Treatment... Nonmedication treatment Weight loss for obese persons Head-of-bed elevation for people with reflux at night Dietary changes not universally recommended Medication treatment Initial Rx: PPIs once daily (30-60 mins before meal) for 8 wks For those responsive to PPIs, taper to lowest effective dose For those unable to taper or with significant erosive disease, Barrett esophagus, or peptic stricture Hx: Continue PPIs H2RAs and antacids may be used for occasional symptoms Surgery is an effective option for some patients with GERD Refer for specialty evaluation when alarm symptoms develop © Copyright Annals of Internal Medicine, 2015 Ann Int Med. 162 (6): ITC6-1.