GI Flashcards
upper GI problems occur in the……
Esophagus, Stomach, Beginning of small intestines
lower GI problems occur in the…….
Small intestines, colon (large intestines), rectum/anus
define dysphagia
Difficulty swallowing.
Begins with solids and progresses to liquids
dysphagia: common causes
- Mechanical obstruction: Stenosis or stricture, Diverticula, Tumors
- Neuromuscular dysfunction: CVA, Achalasia – LES can’t open properly
GERD
Backflow of gastric acid from the stomach into esophagus.
Occurs via the lower esophageal sphincter (LES).
Highly ACIDIC material!
GERD: Etiology
Anything that alters closure strength of LES or increases abdominal pressure
GERD: Clinical Manifestations
Heartburn (pyrosis)
Dyspepsia
Regurgitation
Chest pain
Dysphagia
Pulmonary symptoms
GERD: Complications
ulceration
scarring
strictures
Barrett esophagus- most severe.
define Hiatal Hernia
A defect in the diaphragm that allows part of the STOMACH to pass into the THORAX
Hiatal Hernia: Pathophysiology
Exact cause is unknown.
Age related.
Injury or other damage may weaken the diaphragm muscle.
Repeatedly putting too much pressure on the muscles around the stomach: Severe coughing, Vomiting, Constipation and straining to have a bowel movement.
2 types of Hiatal Hernia
Sliding hernia – usually small and often do not need treatment.
Paraesophageal hernia- part of the stomach pushes through the diaphragm and stays there.
Hiatal Hernia: risk factors
Age
Obesity
Smoking
Hiatal Hernia: clinical manifestations
Asymptomatic
Belching
Dysphagia
Chest or epigastric pain
Hiatal Hernia: treatment
Mostly a conservative treatment
Teaching: small, frequent meals, avoid lying down after eating
Avoid tight clothing and abdominal supports
Weight control for obese individuals
Antacids for the GERD/esophagitis symptoms
Surgery if the conservative treatments do not work
define Gastritis
Inflammatory condition of the stomach
define acute gastritis
TEMPORARY inflammation of the STOMACH lining only (intestines NOT affected)
how long does acute gastritis last?
Generally last from 2-10 days
Acute Gastritis Etiology
Irritating substances (alcohol)
Drugs (NSAIDs)
Infectious agents- H.Pylori
define chronic gastritis
PROGRESSIVE disorder with chronic inflammation in the stomach
how long can chronic gastritis last?
Can last weeks to years
Chronic Gastritis: etiology
- Autoimmune: Attacks parietal cells
- H. pylori infection
Chronic Gastritis: complications
PUD, bleeding ulcers, anemia, gastric cancers
What is H. pylori?
Helicobacter pylori bacterium.
Acidic environment.
Destructive pattern of persistent inflammation: Can cause chronic gastritis, PUD, and stomach cancer
how is H.Pylori transmitted?
Person to person via saliva, fecal matter, or vomit
Contaminated food or water
Acute or Chronic Gastritis: Clinical Manifestations
Sometimes none
Anorexia
N/V
Postprandial discomfort
Intestinal gas
Hematemesis
Tarry Stools
Anemia
define Acute Gastroenteritis
Inflammation of stomach & SMALL INTESTINE
Acute Gastroenteritis: etiology
Viral infections: Norovirus and rotavirus
Bacterial infections: E. col, salmonella, campylobacter
Parasitic infections
how long does Acute Gastroenteritis last?
Usually lasts 1-3 days but may last as long as 10 days