Read Rosen & Barkin's 5-Minute Emergency Medicine Consult Online

Authors: Jeffrey J. Schaider,Adam Z. Barkin,Roger M. Barkin,Philip Shayne,Richard E. Wolfe,Stephen R. Hayden,Peter Rosen

Tags: #Medical, #Emergency Medicine

Rosen & Barkin's 5-Minute Emergency Medicine Consult (433 page)

BOOK: Rosen & Barkin's 5-Minute Emergency Medicine Consult
13.12Mb size Format: txt, pdf, ePub
ads
ICD9
  • 084.0 Falciparum malaria [malignant tertian]
  • 084.1 Vivax malaria [benign tertian]
  • 084.6 Malaria, unspecified
ICD10
  • B50.9 Plasmodium falciparum malaria, unspecified
  • B51.9 Plasmodium vivax malaria without complication
  • B54 Unspecified malaria
MALLORY–WEISS SYNDROME
Galeta C. Clayton
BASICS
DESCRIPTION
  • Partial-thickness intraluminal longitudinal mucosal tear of distal esophagus or proximal stomach
  • Sudden increase in intra-abdominal and/or transgastric pressure causes:
    • Mild to moderate submucosal arterial and/or venous bleeding:
      • May be related to underlying pathology
      • “Mushrooming” of stomach into esophagus during retching has been observed endoscopically.
    • Responsible for ∼5% of all cases of upper GI bleeding
ETIOLOGY
  • Associated with:
    • Forceful coughing, laughing, or retching
    • Lifting
    • Straining
    • Blunt abdominal trauma
    • Seizures
    • Childbirth
    • Cardiopulmonary resuscitation
  • Risk factors:
    • Alcoholics:
      • Especially after recent binge
    • Patients with hiatal hernia
    • Hyperemesis gravidarum
  • Greater bleeding associated with:
    • Portal hypertension
    • Esophageal varices
    • Coagulopathy
DIAGNOSIS
SIGNS AND SYMPTOMS
History
  • Multiple bouts of nonbloody vomiting and/or retching followed by hematemesis:
    • Most bleeding is small and resolves spontaneously.
    • Massive life-threatening hemorrhage can occur.
  • Epigastric pain
  • Back pain
  • Dehydration:
    • Dizzy, light-headed; syncope
Physical-Exam
  • Hematemesis
  • Melena
  • Postural hypotension
  • Shock
ESSENTIAL WORKUP
  • CBC
  • Rectal exam for occult blood
DIAGNOSIS TESTS & NTERPRETATION
Lab
  • Prothrombin time (PT), partial thromboplastin time (PTT), INR
  • Electrolytes, BUN, creatinine, glucose, LFTs
  • Amylase/lipase if abdominal pain
  • Type and cross-match:
    • At least 4 U of packed red blood cells (PRBCs) if bleeding is severe
  • ECG if elderly or with cardiac history
Imaging
  • Upright chest radiograph for free air from esophageal or gastric perforation
  • Upper endoscopy (esophagogastroscopy):
    • Procedure of choice to locate, identify, and treat source of bleeding
DIFFERENTIAL DIAGNOSIS
  • Nasopharyngeal bleeding
  • Hemoptysis
  • Esophageal rupture (Boerhaave syndrome)
  • Esophagitis
  • Gastritis
  • Gastroenteritis
  • Duodenitis
  • Ulcer disease
  • Varices
  • Carcinoma
  • Vascular-enteric fistula
  • Hemangioma
TREATMENT
PRE HOSPITAL
  • Airway control:
    • 100% oxygen or intubate if unresponsive or airway patency in jeopardy
  • If hemodynamically unstable or massive hemorrhage:
    • Initiate 2 large-bore IV catheters.
    • 1 L bolus (peds: 20 mL/kg) lactated Ringer (LR) solution or 0.9% normal saline (NS)
    • Trendelenburg position
INITIAL STABILIZATION/THERAPY
  • ABCs:
    • IV access with at least 1 large-bore catheter; more if unstable
    • Central catheter placement if unstable for more efficient delivery of fluids and monitoring of central venous pressure
    • IV fluids of either 0.9% NS (or LR) at 250 mL/h if stable; wide open if hemodynamically unstable
    • Dopamine for persistent hypotension unresponsive to aggressive fluid resuscitation
  • Large-bore Ewald tube placement with evidence of large amount of bleeding:
    • Safe
    • Will not aggravate Mallory–Weiss tear
    • Lavage blood from stomach with water while patient is on side in Trendelenburg position.
  • Nasogastric (NG) tube placement to check for active bleeding
  • Transfuse O-negative red blood cells immediately if hypotensive and not responsive to 2 L of crystalloid.
  • Most bleeding stops spontaneously with conservative therapy.
ED TREATMENT/PROCEDURES
  • NPO
  • Transfuse PRBCs if unstable or lowering hematocrit with continued hemorrhage.
  • Place Foley catheter to monitor urine output.
  • Monitor fluid status closely.
  • With continuing hemorrhage, arrange for immediate endoscopy:
    • Control bleeding endoscopically via:
      • Electrocoagulation
      • Injection therapy (epinephrine)
      • Band ligation
      • Hemoclips
      • Application of blood-clotting agents
    • Esophageal balloon tamponade
    • Arterial embolization
  • Intravenous vasopressin in massive bleeding and unavailable endoscopy
  • In persistent/unresponsive hemorrhage, angiographic infusion of vasopressin
  • Surgery—last but definitive treatment modality using techniques to oversew bleeding site or perform gastrectomy
  • Failure of above may require gastric arterial embolization in patients of poor surgical risk.
  • Antiemetics for nausea/vomiting
  • Proton pump inhibitors or H
    2
    blockers for gastric acid suppression.
  • Avoid Sengstaken-Blakemore tubes (especially in presence of hiatal hernia).
MEDICATION
  • Dopamine: 2–20 μ/kg/min IV piggyback (IVPB)
  • Ondansetron 4 mg IV
  • Pantoprazole 20–40 mg IV
  • Vasopressin: 0.1–0.5 IU/min IVPB titrating up to 0.9 IU/min as necessary
FOLLOW-UP
DISPOSITION
Admission Criteria
  • ICU admission for:
    • Continued or massive hemorrhage
    • Hemodynamic instability
    • Extreme age
    • Poor underlying medical condition
    • Complications
  • General floor admission for
    • Stable patients with minimal bleed on presentation that has since cleared
    • Patients with risk factors for rebleeding (portal HTN, coagulopathy)
Discharge Criteria
  • History of minimal bleed that has stopped
  • Hemodynamically stable
  • Normal/stable hematocrit
  • Negative or trace heme-positive stool
  • Negative or trace gastric aspirate
Issues for Referral

Consult GI in ED if significant upper GI bleeding or if you suspect that requires urgent endoscopy.

FOLLOW-UP RECOMMENDATIONS

GI follow-up for outpatient endoscopy if clinically stable for discharge.

PEARLS AND PITFALLS
  • Place 2 large-bore IVs for patients with upper GI bleed.
  • For massive GI bleed, initiate blood transfusion early.
  • Contact GI early for emergent endoscopy with significant bleeding.
  • Active bleeding at the time of initial endoscopy and a low initial hematocrit is associated with a complicated clinical course.
  • Rebleeding usually occurs within 24 hr, and is most common in patients with coagulopathies.
ADDITIONAL READING
  • Fujisawa N, Inamori M, Sekino Y, et al. Risk factors for mortality in patients with Mallory-Weiss syndrome.
    Hepatogastroenterology
    . 2011;58:417–420.
  • Kim JW, Kim HS, Byun JW, et al. Predictive factors of recurrent bleeding in Mallory-Weiss syndrome.
    Korean J Gastroenterol
    . 2005;46(6):447–454.
  • Takhar SS. Upper gastrointestinal bleeding. In:Wolfson AB, Hendey GW,Ling LJ, et al., eds.
    Clinical Practice of Emergency Medicine.
    5thed. Philadelphia, PA: Lippincott Williams & Wilkins; 2010:548–550.
  • Wu JC, Chan FK. Esophageal bleeding disorders.
    Curr Opin Gastroenterol
    . 2004;20:386–390.
See Also (Topic, Algorithm, Electronic Media Element)
BOOK: Rosen & Barkin's 5-Minute Emergency Medicine Consult
13.12Mb size Format: txt, pdf, ePub
ads

Other books

Dragonhold (Book 2) by Brian Rathbone
Murder of a Wedding Belle by Swanson, Denise
Delicious! by Ruth Reichl
Dark Heart of Magic by Jennifer Estep
How Did You Get This Number by Sloane Crosley
Phantom Affair by Katherine Kingston
Running on Empty by Sandra Balzo
Hunter: A Thriller by Bidinotto, Robert James
The Quilt Walk by Dallas, Sandra