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Michael Shared "GI system: Upper/lower GI, liver, GB, pancreas" - 55 Picmonics

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GI system: Upper/lower GI, liver, GB, pancreas

Foregut Structures, Blood Supply and Innervation
Structures
Esophagus
Lower Respiratory Tract
Stomach
Proximal Duodenum
Liver
Gallbladder
Pancreas
Spleen
Vascular Supply
Celiac Artery
Innervation
Vagus Nerve
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2 mins
Midgut Structures, Blood Supply and Innervation
Structures
Distal Duodenum
Jejunum
Ileum
Appendix
Ascending Colon
Proximal 2/3 of Transverse Colon
Vascular Supply
Superior Mesenteric Artery
Innervation
Vagus Nerve
Lesser Splanchnic Nerve
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2 mins
Hindgut Structures, Blood Supply and Innervation
Structures
Distal 1/3 of Transverse Colon
Descending Colon
Sigmoid Colon
Rectum
Pectinate (Dentate) Line
Urogenital Sinus
Vascular Supply
Inferior Mesenteric Artery
Innervation
Lumbar Splanchnic Nerves
Pelvic Splanchnic Nerves
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2 mins
Cholecystokinin (CCK)
Secreted by I Cells
Duodenum and Jejunum
Physiology
Increase Pancreatic Secretions
Increase Gallbladder Contraction
Induce Relaxation of Sphincter of Oddi
Decrease Gastric Emptying
Regulation
Increased by Fatty Acids and Amino Acids
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1 min
Esophageal Adenocarcinoma Characteristics and Presentation
Characteristics
Most Common Esophageal Cancer in USA
Lower 1/3 of Esophagus
Risk Factors
Gastroesophageal Reflux Disease (GERD)
Barrett's Esophagus
Achalasia
Obesity
Smoking
Presentation
Weight Loss
Progressive Dysphagia
Anemia
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2 mins
Gastroesophageal Reflux Disease (GERD) Assessment
Pathophysiology
Relaxed Lower Esophageal Sphincter
Signs and Symptoms
Dyspepsia (Indigestion)
Belching
Nighttime Coughing
Dysphagia
Epigastric Pain
Regurgitation
Heartburn (Pyrosis)
Globus
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2 mins
Barrett's Esophagus
Histological findings
Metaplasia in Lower Esophagus
Columnar Epithelium
Associated Pathologies
Gastroesophageal Reflux Disease (GERD)
Esophagitis
Esophageal Ulcers
Increased Risk of Esophageal Adenocarcinoma
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1 min
Mallory-Weiss
Characteristics
Bleeding From Tears in Mucosa
Forceful Vomiting
Alcoholism
Eating Disorders (Bulimia)
Painful Hematemesis
Diagnosis
Endoscopy
Management
Observation
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2 mins
Boerhaave Syndrome
Pathophysiology
Esophageal Rupture
Increased Esophageal Pressure while Vomiting
Lower 1/3 of Esophagus
Signs and Symptoms
Chest Pain
Odynophagia
Subcutaneous Emphysema
Management
Shock
Surgical Emergency
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2 mins
Tracheoesophageal Fistula (TEF)
Cause
Esophageal Atresia
Ends in Blind Pouch
Assessment
Coughing
Choking
Cyanosis
Drooling
Considerations
NPO
Surgical Emergency
Aspiration Pneumonia
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2 mins
Achalasia
Pathophysiology
Failure to Relax Lower Esophageal Sphincter
Malignancies
Chagas Disease
Loss of Auerbach Plexus
Symptoms
Dysphagia to Solids & Liquids
Diagnosis
Barium Swallow
Bird's Beak Appearance
Manometry
Risk Factors
Increased Risk Squamous Cell Carcinoma
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2 mins
Zenker Diverticulum
Pathophysiology
False Diverticulum
Junction of Pharynx and Esophagus
Inferior Pharyngeal Constrictor
Symptoms
Dysphagia
Regurgitation of Undigested Food
Halitosis
Diagnosis
Barium Swallow
Treatment
Surgical Repair
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2 mins
Plummer-Vinson Syndrome
Triad of Symptoms
Dysphagia
Esophageal Webs
Glossitis
Iron Deficiency Anemia
Association
Squamous Cell Cancer of Esophagus
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1 min
Esophageal Perforation
Etiologies
Iatrogenic
Inflammation
Trauma
Boerhaave Syndrome
Presentation
Retrosternal Pain
Subcutaneous Emphysema
Pneumomediastinum
Diagnostic Workup
Chest X-Ray
Esophagram
Computed Tomography
Management
ABCs (Airway, Breathing, Circulation)
Broad-Spectrum Antibiotics
Surgical Repair
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4 mins
Esophageal Squamous Cell Carcinoma Risk Factors and Presentation
Characteristics
Most Common Esophageal Cancer Worldwide
Upper 2/3 of Esophagus
RISK FACTORS
Plummer-Vinson Syndrome
Alcohol
Smoking
Poor Diet
Achalasia
Clinical Features
Progressive Dysphagia
Weight Loss
Anemia
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1 min
Eosinophilic Esophagitis
Characteristics
History of Atopic Disease
Symptoms
Dysphagia
Diagnosis
Endoscopy with Biopsy
Eosinophilic Infiltrate
Unresponsive to GERD Therapy
Interventions
Elimination Diet
Proton Pump Inhibitors (PPIs)
Topical Glucocorticoids
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2 mins
Esophageal Varices
Pathophysiology
Cirrhosis
Portal Hypertension
Left Gastric Vein and Esophageal Veins
Clinical Features
Hematemesis
Melena
Hypotension
Acute Management
IV Fluids
Antibiotics
Octreotide
Endoscopic Band Ligation or Sclerotherapy
Balloon Tamponade
Prophylaxis
Nonselective Beta Blockers
Transjugular Intrahepatic Portosystemic Shunt (TIPS)
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3 mins
Peptic Ulcer Disease Interventions
Combination Drug Therapy
Two Antibiotics
Proton Pump Inhibitor (PPI)
Decrease Acid Secretion
Avoid NSAIDs
Diet and Lifestyle Changes
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1 min
Peptic Ulcer Disease Assessment
Mechanism/Cause
Helicobacter Pylori
NSAIDs
Increased Stomach Acid
Assessment
Abdominal Pain
Heartburn (Pyrosis)
Melena
Weight Changes
GI Distress
Considerations
Most Commonly in Duodenum
Duodenal: Pain Relieved by Eating
Gastric: Pain Caused by Eating
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2 mins
Gastroenteritis
Cause/Mechanism
Viruses
Bacteria
Food Intolerances
Assessment
Flu-Like Symptoms
GI Distress
Bloody Stool
Interventions
Oral Rehydration
Considerations
Self-Limiting
Prevention
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2 mins

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Michael Shared GI system: Upper/lower GI, liver, GB, pancreas - 55 Picmonics