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Dr. Noam Zevit
Schneider Children’s Medical Center of Israel
Sackler Faculty of Medicine - Tel Aviv University
Gastrointestinal Bleeding
in Children
Clinical Cases
Some slides courtesy of James Markowitz M.D.
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• Hematochezia – passage of bright or dark red blood per rectum• in general, the redder the blood, the more distal the site of
bleeding
Marginalia- ~1450
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• Melena – the passage of black, tarry stools• indicates likely UGI bleed (proximal to the ligament of Treitz)
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• Hemetemesis – vomitus containing frank blood or brown-black “coffee
grounds”
14th-century illustration of vomiting from the Casanatense TacuinumSanitatis based on الصحةتقويم from 11th Century Baghdad
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Bloody Vomitus does not always mean GI pathology
• Nose Bleed
• Tooth Extraction/abbcess
• Throat laceration
• Hemoptysis
• Maternal Blood
Vincenzo Grimaldi, Tuberculosis.
Sanctuary of the Martyred Saints Alfio, Cirinio, and Filadelfo), Trecastagni,
Sicily 1927
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Always ask: “Is it Blood”• Red Jell-O
• Red Candy
• Beets
• Cranberries
• Tomato Juice, Tomato Soup
• Rifampin
• Moxypen
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Is it really Melena?
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Case 1• 6 yr old boy complains that “my poop is red”o No previous episodes of red colored stoolso Healthy child, no underlying conditionso No pain, fever, systemic symptomso No recent illness, travelo No prescribed or OTC medicationso No family history GI disease
• PE:o VS: Pulse 120/min; BP 70/40; + orthostasiso Exam otherwise unremarkable
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• CBC: Hgb 9 mg/dl Hct 27% Platelets 360k• BUN 25 Creatinine 1.0
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• Impression:
1.Red blood PR = likely hematochezia
2.Orthostatic, anemic = significant bleeding
3.Painless
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Differential Diagnosis Case 1Hematochezia in a Child
• Anal fissure• Juvenile polyp• Nodular lymphoid hyperplasia• Infectious colitis• Hemolytic uremic syndrome• Inflammatory bowel disease• Intussusception• Henoch-Schonlein purpura• Meckel’s diverticulum• Intestinal duplication• Vascular malformations• Neutropenic colitis
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Meckel’s Diverticulum
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Meckel’s Diverticulum• Technetium-99-pertechnetate
• Concentrates in gastric mucosa
• Premedicate with H2 blocker to enhance uptake and minimize risk of stomach or bleeding obscuring the diverticulum
• Can also identify duplications
• ONLY 50% OF PROVEN MECKEL’S HAVE A POSITIVE SCAN
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Case 1-2• 6 yr old boy complains that “my poop is red”o No previous episodes of red colored stoolso Healthy child, no underlying conditionso No pain, fever, systemic symptomso No recent illness, travelo No prescribed or OTC medicationso No family history GI disease
• PE:o VS: Pulse 120/min; BP 70/40; + orthostasiso Exam otherwise unremarkable
80 80/50
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• CBC: Hgb 12 mg/dl Hct 36% Platelets 360k
• BUN 5 Creatinine 0.6
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Differential Diagnosis Case 1Hematochezia in a Child
• Anal fissure• Juvenile polyp• Nodular lymphoid hyperplasia• Infectious colitis• Hemolytic uremic syndrome• Inflammatory bowel disease• Intussusception• Henoch-Schonlein purpura• Meckel’s diverticulum• Intestinal duplication• Vascular malformations• Neutropenic colitis
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Juvenile Polyp
• May be single or a few, located throughout the colon; virtually always benign
• Occasionally multiple (juvenile poyposis coli)
o In JPC, may have potential for adenomatous change
• Diagnosis: Colonoscopy
• Treatment: Endoscopic Polypectomy
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VASCULAR MALFORMATIONS
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Case 1-3• 6 yr old boy – Red blood in the stoolo Previously healthyo Cramps, vomiting (nonbloody)o Loose, stools mixed with blood and mucus
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Differential Diagnosis Case 1Hematochezia in a Child
• Anal fissure• Juvenile polyp• Nodular lymphoid hyperplasia• Infectious colitis• Hemolytic uremic syndrome• Inflammatory bowel disease• Intussusception• Henoch-Schonlein purpura• Meckel’s diverticulum• Intestinal duplication• Vascular malformations• Neutropenic colitis
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Infectious Entero-colitis• Bacterial infectionso Salmonella, Shigella, Campylobacter, E colio C. difficile – may not have clearcut history of antibiotic
exposure
• Viral infections - only CMV in the immunocompromised host
• Parasitic - amebiasis
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Inflammatory Bowel Disease• Both Crohn’s and UC can present with bloody
diarrhea• Exclude infectious causes before initiating
invasive diagnostic procedureso CT/US/MRI evidence of diffuse or segmental bowel
inflammation does not preclude an infectious etiology
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Intusseption
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Case 2 – Painless hematochezia in an Adolescent
• 17 year old girl with streaks of bright red blood PR.o Healthy adolescent; not sexually activeo No weight loss, systemic symptomso Menses regularo Solid BM every other day; not hard or largeo No prescription or OTC meds
• PE: Healthy appearing, VS normalo Normal abdominal examinationo PR?
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Hematochezia in the Adolescent
• Anal fissure• Infectious colitis• Inflammatory bowel disease• Meckel’s diverticulum• Polyps• Intestinal duplication• Neutropenic colitis• Hemorrhoids• Vascular Malformations
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Anal Fissure
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• Most common presentation of colitis in adults• Typically, painless hematochezia is only symptom
o Tenesmus often mistaken for constipation
• Laboratory evaluation often entirely normal
Proctitis/Proctosigmoiditis
חולה
בריא
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Anal Lesions
• Hemorrhoids are extremely uncommon in the child and adolescent
• Fleshy rather than vascular lesions should raise the suspicion of Crohn’s disease
External hemorrhoids Crohn’s anal tags
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Polyps
• Polyps are unusual in adolescents• May indicate a polyposis syndrome, often malignanto Familial Adenomatous Polyposis (FAP)o Hereditary Nonpolyposis Colon Cancer Syndrome
(HNPCC)
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Case 3 – Hematochezia in an Infant• 6 week old girl with streaks of bright red blood PR.o Full term, no neonatal problemso Breast fed x 2 weeks but changed to intact milk protein
formula due to “constipation”o At 4 weeks, developed streaks of blood in mucusy stool.o Poor intake on all feeds except breast milk (“She didn’t like
the taste”), and gained weight poorly
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• PE: Irritable but consolableo Temp 38o; other vitals
normal for ageo Weight 50% at birth →
25% nowo Benign abdomen, normal
perineal anatomy
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Hematochezia in an Infant• Swallowed maternal blood
• Dietary protein intolerance (Milk/soy)
• Infectious colitis/enteritis
• Necrotizing enterocolitis
• Hirschprung’s Disease
• Coagulopathy
• Vascular Malformations
• Auto-immune conditions (rare)
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Milk Protein Allergy• Presentationso Hematochezia – usually in first 3 months of life
� Diarrhea, irritability, ± poor weight gaino Hypoalbuminemia, anasarcao “GE reflux”
• Labso Variable eosinophilia in blood and biopsyo Skin prick, RAST testing negative
• Treatmento Casein hydrolysate or amino acid based formula
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Case 3b – Hematochezia in an Infant
• 6 week old girl with streaks of bright red blood PR.o Full term, no neonatal problemso Breast fed x 2 weeks but changed to intact milk protein
formula due to “constipation”o At 4 weeks, developed streaks of blood in mucusy stool
that persisted when transferred to extensively hydrolizedformula.
o Poor intake on all feeds except breast milk (“She didn’t like the taste”), and gained weight poorly
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• PE: Irritable • Temp 38o; Tachypneic and
hypotensive. • Weight 50% at birth →
25% nowo Abdomen distended and
firm, normal perineal anatomy
o WBC 25k, Hgb 10, Plt 350k, Albumin 2.8
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Hematochezia in an Infant• Swallowed maternal blood
• Dietary protein intolerance (Milk/soy)
• Infectious colitis/enteritis
• Necrotizing enterocolitis
• Hirschprung’s Disease
• Coagulopathy
• Vascular Malformations
• Auto-immune conditions (rare)
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Hirschsprung’s Disease• Failure to pass meconium
• Early constipation
• Poor Weight Gain
• Distended Abdomen
• Surgical treatment
• Importance of early identification
• Enterocolitis may be catastrophic
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Intestinal malrotation
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Case 4• 17 year old male with episode of coffee ground emesiso Finished 11th grade - 1 week before
� Denied alcohol or NSAID use
o 1 month history of postprandial epigastric paino Mother had recurrent ulcers as a young woman
• PE: Mildly dehydrated, minimally tender in epigastrium, no stigmata of chronic liver disease
• Labs: Hgb 10 Hct 30% Normal LFTs
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Case 4 Main Differential • Hemetemesis/Melena
• Esophagitis• Gastritis (H. pylori)• Gastritis H. pylori negative (infectious, other)• Gastric/duodenal ulcer (H. pylori)• Mallory Weiss tear• Esophageal varices• Portal hypertensive gastropathy• Pill induced ulcerso NSAIDs
• Alcohol
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NSAIDs
Hemorrhagic Gastritis Duodenal Ulcer
1. Supportive care2. Acid suppression (H2 blocker or PPI)
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Reflux esophagitis
1. Acid suppression (PPI)2. Weight Loss, low fat diet, gum, low alchoholand caffeine.3. ? Fundoplication
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Helicobacter pylori
Antral nodularity Duodenal ulcer
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• At least 50% of individuals is the world are thought to be infectedo Frequency: developing > developed worldo Prevalence increased in areas of the world with lower
standard of living, increased population densityo Infection acquired at all ages
• Therapyo Triple therapy: PPI + 2 antibiotics (e.g. amoxacillin,
metronidazole, clarithromycin)
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Mallory Weiss Tear
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Case 5• 8 y.o. male with 3 large bad smelling tarry stools and one
bloody emesis.
• History – born 28 wks premature, 6 weeks in NICU
• Physical Exam
oMild Dehydration
o Liver not palpable, spleen + 4 cm
oNo Jaundice
oA few Petechiae
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• Labso WBC 2.2; Hgb 8 g/dl; Hct 24%; Plts 60Ko Liver enzymes – normal
• Acute upper GI bleed
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Case 5 Differential Diagnosis• Hemetemesis/Melena in a Child
• Esophagitis• Gastritis (H. pylori)• Gastric/duodenal ulcer (H. pylori)• Mallory Weiss tear• Esophageal varices• Portal hypertensive gastropathy• Pill induced esophagitis
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Portal Hypertention
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Portal Hypertension Causes• Intrahepatic (e.g. cirrhosis)• Post-sinusoidal o Budd Chiari syndrome (hepatic vein thrombosis)
• Presinusoidalo Splenic vein thrombosiso Cavernous transformation of the portal vein
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Esophageal Varices
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Case 6• One day old full term male with bloody emesiso Unremarkable pregnancyo Complicated delivery: Apgars 4 and 8o Breast feeding, but taking poorly
• PE: o Well Developed, 3.5 kg.o Anicteric, normal abdominal exam
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Case 6 differential diagnosis• Hemetemesis/Melena in the Infant
• Swallowed maternal blood• Stress gastritis• Intestinal duplication• Vascular malformation• Vitamin K deficiency• Hemophilia• Maternal ITP• Maternal NSAID use
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Case 6 - Evaluation• Apt test • Esophagogastroduodenoscopy
• Treatment: oSupportive careoH2 blocker/PPI
Hemorrhagic “stress” gastritis
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GI Bleeding - Treatment
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Emergency management of GI Bleeding
• Assess hemodynamic status and stabilize
• Determine Upper vs. Lower
• Establish Differential Diagnosis
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Clinical Assessmento Appearance of the patient
• Worrisome signs: pallor, diaphoresis, restlessness, lethargy, abdominal pain
o Hemodynamic status of the patient• tachycardia, hypotension, shock?• orthostatic changes in heart rate and blood pressure?
o Drop of 10 mmHg or more in systolic BP and/or an increase of ≥20 beats/min in pulse when moved from supine to sitting
o Character of the bleedingo Estimate volume of blood losto Hematocrit
• Remember: With an acute bleed, Hct will not drop significantly until intravascular volume is repleted!
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Stabilize the Patient (1)
• Insert the largest bore IV catheter possible: the r4 factor
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• Omeprazole/Esomeprazole: proton pump inhibitoro For Severe Bleed –
o Adult – 80mg bolus 8mg/hro Children 2mg/kg bolus 0.2mg/kg/hr
• Non-Severe Bleedo 0.5-1mg/kg bid up to 20-40mg (for infants consider Ranitidine 3-
6mg/kg/day divided 3/d)
• Octreotideo Decreases portal pressure by decreasing splanchnic blood flowo Loading dose: 1 µg/kg bolus (maximum of 50 µg)o Continuous infusion of 1 µg/kg/hour; can be increased gradually to 4 µg/kg/hour
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Upper vs Lower GI Bleed: Role of Nasogastric Lavage
• Diagnostic: Establishes UGI bleed• Room temperature saline, not icedo Iced saline may induce mucosal ischemia and worsen
bleeding
• Lavage may reduce clots, allowing better visualization at endoscopy
• Lavage may remove clots, preventing hemostasis
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Therapeutic Endoscopic Interventions
• For varices
• Sclerotherapyo Sodium morrhuateo Sodium tertadecyl
sulfateo Ethanolamine
• Band ligation
For Mucosal Lesions
• Injection therapyo Epinephrine
• Coagulation o Heater probeo Bipolar probeo Laser
• Mechanicalo Hemoclipo Banding
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Additional therapies to be considered when endoscopic techniques fail
• Angiographyo Embolizationo Selective vasopressin infusion
• Surgery
ALWAYS INVOLVE THE SURGEON EARLY IN THE COURSE OF MANAGING A SEVERE
GI BLEED