Upper Gastrointestinal Bleed in the Emergency Department: Causes, Diagnosis, Treatment | EB Medicine
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Emergency Department Evaluation And Management Of Patients With Upper Gastrointestinal Bleeding

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Table of Contents
 
Table of Contents
  1. Abstract
  2. Case Presentations
  3. Introduction
  4. Critical Appraisal Of The Literature
  5. Etiology And Pathophysiology
  6. Differential Diagnosis
  7. Prehospital Care
  8. Emergency Department Evaluation
    1. History
      1. Interpreting Sources Of Bleeding By Color
      2. Recognizing The Potential For Shock
    2. Physical Examination
      1. Reassessment
  9. Diagnostic Studies
    1. Laboratory Testing
    2. Nasogastric Lavage
    3. Stool Guaiac Testing
      1. Imaging
  10. Treatment
    1. Pharmacotherapy
      1. Proton Pump Inhibitors
      2. Somatostatin Analogues
      3. Summary Of Recommendations: Proton Pump Inhibitors And Somatostatin Analogues
      4. Vasopressin
      5. Antibiotics
    2. The Role And Timing Of Endoscopy
    3. Indications For Surgical Consult
    4. The Role Of Interventional Radiology
    5. Bedside Treatment Options
  11. Special Populations
    1. Resuscitation Of The Anticoagulated Patient
  12. Controversies And Cutting Edge
    1. Morbidity On Weekend Admissions
    2. Permissive Anemia
    3. Capsule Endoscopy
  13. Disposition
    1. Risk Stratification And Inpatient Versus Outpatient Management
    2. Determining Suitability For Outpatient Management
    3. Intensive Care Unit Versus Acute Care Admission
  14. Summary
  15. Risk Management Pitfalls For Upper Gastrointestinal Bleeding
  16. Time- And Cost-Effective Strategies
  17. Case Conclusions
  18. Clinical Pathway For Management Of Suspected Upper Gastrointestinal Bleeding
  19. Tables and Figures
    1. Table 1. Causes Of Upper Gastrointestinal Bleeding
    2. Table 2. Mimics Of Gastrointestinal Bleeding
    3. Table 3. Medical Conditions That Increase Risk Of Upper Gastrointestinal Bleeding
    4. Table 4. Medications That Increase Risk Of Upper Gastrointestinal Bleeding
    5. Table 5. Laboratory Testing For Upper Gastrointestinal Bleeding
    6. Table 6. The Child-Pugh Score38
    7. Table 7. The Blatchford Score43
    8. Figure 1. Upright Radiograph Showing Pneumoperitoneum
    9. Figure 2. Sengstaken-Blakemore Tube
    10. Figure 3. Sengstaken-Blakemore Tube Placement
  20. References

Abstract

Upper gastrointestinal bleeding results from a variety of conditions that may vary in severity from merely bothersome to imminently life-threatening. While stabilization is standard for nearly all causes of bleeding, identifying whether the bleed is from variceal or nonvariceal sources is critical. Testing and treatments such as nasogastric lavage, antibiotics, somatostatin analogues, proton pump inhibitors, and emergent endoscopy may benefit some patients, depending upon the bleeding source and other clinical factors; however, some therapies that are routinely used have very little evidence demonstrating effectiveness. This issue reviews the most recent evidence regarding appropriate testing, risk stratification, and indications for gastroenterology consult in the emergency department in order to treat these patients appropriately.

Case Presentations

Your first patient of the day is a 67-year-old woman with a history of hypertension, diabetes mellitus, and chronic constipation who presents for evaluation of abdominal cramping, diaphoresis, and near-syncope which have been present for the preceding 12 hours. She reports having multiple maroon-colored stools. She takes warfarin and recently started taking aspirin on the advice of a friend. The patient's heart rate is 125 beats/min, her blood pres­sure is 90/55 mm Hg, and she appears pale and diapho­retic. She reports no pain on abdominal examination, but you observe melena on rectal examination. The patient has progressive respiratory distress, and her repeat blood pressure is 80/40 mm Hg. Beyond the ABCs, you wonder what to do to save this patient's life...

Your next patient is a 45-year-old man with chronic alcoholism and cirrhosis secondary to hepatitis C who presents with 2 days of emesis. He reports that his vomit is now containing “cupfuls” of dark-red blood. His heart rate is 110 beats/min, and his blood pressure is 120/75 mm Hg. Other than the tachycardia, the patient is well-appearing; the nurse says, “He looks pretty good – does he really need an IV?”

Introduction

Upper gastrointestinal (GI) bleeding is defined as intraluminal bleeding from an intestinal source originating proximal to the ligament of Treitz. This landmark has historical significance in the surgical care of intestinal bleeding, but it is of little importance to emergency clinicians in the emergency department (ED). Due to the proximal source of bleeding, patients with potential upper GI bleeding may complain of hematemesis, melena, or hematochezia. At the bedside, these patients may closely resemble pa­tients who are bleeding from a lower or a more distal location. A variety of clinical conditions may cause upper GI bleeding, including peptic ulcer disease, Mallory-Weiss tears, and esophageal varices. Beyond the initial evaluation and resuscitation in the ED, the treatment for upper GI bleeding varies according to the cause of the bleeding and the disease severity.

Critical Appraisal Of The Literature

A literature search was performed using PubMed using the terms gastrointestinal, upper, bleed, variceal, hemorrhage, cirrhosis, Mallory-Weiss, transfusion, anti­coagulation, and melena. Given the extensive body of literature concerning GI bleeding, the search focused on the presentation and management of GI bleeding in settings relevant to emergency medicine practice. Approximately 50 systematic reviews from the Co­chrane Database of Systematic Reviews were relevant. Upon reviewing these Cochrane reviews, additional references were identified that specifically related to the evaluation and treatment of a patient with an up­per GI bleed in the ED. When evaluating the role that various therapeutic agents play in the setting of up­per GI bleeding, a number of studies used surrogate markers (such as findings on endoscopy) to evaluate the efficacy of a particular intervention. We searched specifically for patient-oriented outcomes, such as a decreased rate of rebleeding, a change in the need for blood products, and, most importantly, a change in short-term or long-term survival.

In addition to our literature search, we reviewed available guidelines from the American College of Gastroenterology, the American College of Emer­gency Physicians (ACEP), and the National Institute for Health and Care Excellence (NICE). The litera­ture involving various diagnostic and therapeutic modalities is of fairly high quality, including numer­ous well-run clinical trials. The level of evidence is somewhat weaker regarding guidelines or proposed treatment pathways; indeed, consensus recommen­dations form a majority of the recommendations made in the literature.

Risk Management Pitfalls For Upper Gastrointestinal Bleeding

1. “She looked good in triage. I am surprised she went into shock.”
Patients with upper GI bleeding have the potential to decompensate rapidly. When seen initially in triage, these patients may appear well. Nursing staff should promptly identify patients with a potential upper GI bleed and triage them appropriately to minimize any avoidable delay between their arrival and assessment by an emergency clinician.

2. “He had normal vital signs.”
In the setting of an upper GI bleed, do not rely too heavily on the presence of normal vital signs when attempting to risk stratify patients. Young patients may experience significant blood loss before developing markedly abnormal vital signs. Similarly, patients taking nodal blocking agents may not develop tachycardia in response to ongoing bleeding. Recognize the risk of occult shock in young patients, and consider the potentially confounding effects of various medications when evaluating a patient’s vital signs.

3. “I didn’t think that the patient needed a rectal examination.”
Patients who complain of having blood in their vomit and stool need to have a complete physical examination performed. Obtain a stool specimen to evaluate for gross or occult blood. In addition, a rectal examination may suggest a proximal source of bleeding, such as a hemorrhoid or rectal fissure.

4. “The patient had a normal hematocrit, so I thought that he would be fine.”
In the early stages of bleeding, patients may have seemingly normal laboratory results, including hematocrit and hemoglobin. Consider the risk of ongoing bleeding, and repeat laboratory testing as clinically indicated.

5. “The patient looked good when I was in the room.”
In a busy ED, it can be difficult, at times, to re-examine patients. Patients with a potential upper GI bleed are at risk of deterioration, so monitor these patients closely to ensure that any changes in their condition are addressed in a timely fashion.

6. “I didn’t want to wake the gastroenterologist up in the middle of the night.”
Consult the gastroenterology service early in the course of the patient’s ED visit, when appropriate. Waiting for certain test results prior to discussing the case with the gastroenterology service could result in a delay in obtaining definitive care when a patient needs emergent endoscopy. While not all patients with upper GI bleeding need an emergent gastroenterology consult, given the potentially unstable nature of these patients, err on the side of discussing the case earlier in the course of the visit rather than later.

7. “I thought that she would be fine on the floor.”
Consider available resources when admitting a patient with a potential upper GI bleed. Decisions such as the need for intensive care unit level of monitoring and the availability of emergent endoscopy should be discussed and clearly documented during the patient’s ED course.

8. “The patient was stable; I didn’t think she needed to be admitted.”
While not all patients with upper GI bleeding need inpatient workup and monitoring, exercise caution when discharging patients from the ED. Clearly document the findings and decision process that helped make the decision to discharge the patient.

9. “I didn’t realize that the patient was on an anti­coagulant.”
Critically ill patients with ongoing bleeding who are on anticoagulants likely need rapid reversal of their anticoagulation. Rapidly assess the risk of reversing a patient’s anticoagulation, and weigh this with the risk of ongoing bleeding. These decisions should be clearly documented.

10. “I told the patient to see his primary care pro­vider.”
Patients discharged from the ED need clear time- and action-specific follow-up instructions. A simple approach would be to have patients return for any new or concerning symptoms or if they get worse. Specific signs that should prompt an immediate return (such as recurrent bleeding) should be discussed. Document that a patient verbalized an understanding of the return instructions.

Tables and Figures

Table 1. Causes Of Upper Gastrointestinal Bleeding

References

Evidence-based medicine requires a critical ap­praisal of the literature based upon study methodol­ogy and number of subjects. Not all references are equally robust. The findings of a large, prospective, randomized, and blinded trial should carry more weight than a case report.

To help the reader judge the strength of each reference, pertinent information about the study will be included in bold type following the reference, where available. In addition, the most informative references cited in this paper, as determined by the authors, will be noted by an asterisk (*) next to the number of the reference.

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