gi bleeding: from mouth to rectum and everywhere in between
TRANSCRIPT
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GI Bleeding:From Mouth to Rectum and Everywhere in Between
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Outline
•Epidemiology and Risk Factors•Signs and Symptoms•Physical Exam Findings•Etiologies•Diagnosis•Management
Will focus mostly on inpatients
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Epidemiology
•Upper GI bleeds (UGIB)▫100,000 admissions/year to US hospitals▫10% mortality
•Variceal bleeds▫30% of identified varices will bleed in 1
year▫33% mortality with each bleed
•Lower GI bleeds (LGIB)▫Less common than UGIB▫3% mortality
Key Point: Mortality LGIB < UGIB < Variceal bleeds
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Risk Factors Most Important Part of History!•NSAID Use•Cirrhosis•Anticoagulation/Coagulopathy•Age•Risk factors for colon cancer•Previous history of GI bleeding
Key Point:
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Signs and SymptomsUpper GI Bleed Lower GI Bleed
▫ Lightheadedness/Syncope
▫ Diarrhea▫ Anemia▫ Hematemasis▫ Melena▫ Stigmata of cirrhosis▫ Heartburn
▫ Lightheadedness/Syncope
▫ Diarrhea▫ Anemia▫ Hematochezia
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Physical Exam Findings
•Vital signs (more later)•Dry mucus membranes•Stigmata of cirrhosis•Fetid breath•DRE – gotta do it•Weak pulses•Cool skin•Encephalopathy
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Common EtiologiesUpper GI Bleed Lower GI Bleed
• PUD – 55 %• Varices – 14 %• AVMs – 6%• Mallory Weiss Tears – 5%• Tumors/Erosions – 4%• Dieulafoy’s lesions – 1%• Others 15%
• Diverticular disease – 30%• Colitis – 18%
▫ Ischemic▫ Inflammatory▫ Infectious
• Neoplasms – 10%• AVMs – 8%• Hemorrhoids – 5%• Others – 20%
Khilani et all, Emerg Med 37(10):27-32, 2005
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Diagnosis•Upper or Lower?
▫History▫Digital Rectal Exam▫Hemoglobin
•Still bleeding?▫Consider NG Lavage
•What’s the etiology?▫Diagnostic Testing
FreebeesThese can usually make the diagnosis
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Diagnostic Testing•EGD – standard for UGIB•Colonoscopy – standard for LGIB•Push Enteroscopy – can image through SB•Capsule Endoscopy – good yield - can’t
intervene•Sigmoidoscopy – rarely used•Barium studies – good to look for
lesions/mass•Tagged red cell scans – poor yield
For more information, do a GI fellowship!
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Management – General Principles•Risk stratify
▫Assess blood loss▫Blatchenford score▫Rockall score (after EGD)
•IV access•Volume replacement•Acid suppression therapy•Plan for diagnostic procedure
Beyond the scope of this discussion!
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Management: Assess Blood Loss
Category
% loss HR BP Pulse Pressure
UOP
Stage 1 <15 % < 100
Normal Normal > 30
Stage 2 15-30%
> 100
Normal Decreased
20-30
Stage 3 30-40%
> 120
Decreased
Decreased
5-15
Stage 4 > 40% > 140
Decreased
Decreased
Negligible
If they are hypotensive, you are in trouble!
HR not useful if patients are on
AV node blockers
From Advanced Trauma Life Support Guidelines
Tachycardic means they have lost about 1 liter
of blood!Key Points
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Management: Access and Volume•IV Access
▫Two large bore peripheral IVs is best•Volume replacement
▫Normal saline▫Blood products▫Consider FFT/Cryo/FFP
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MGMT: Acid Suppression•Applies to UGIB from ulcers
Gralnek I.M et al. NEJM 2008
Key Point: PPIs can improve mortality
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MGMT: Acid Suppression (con’t)
•Other questions: Continuous versus bolus? IV versus oral? Duration of treatment?
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Management – Suspected Varices•Initial stabilization•Splanchnic Vasoconstricters:
Octreotide/Vasopressin•TIPS•Minnesota tube/Blakemoore tube•Antibiotic prophylaxis
•A whole other talk
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Key Points•GI bleeding is a common hospital
diagnosis – Look for it
•Risk factors are the most important part of the history
•Vital signs can help risk stratify patients
•PPIs can reduce need for surgery, rebleeding, and death
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