Upper GIT Bleeding Flashcards
What is upper gastrointestinal bleeding?
refers to blood loss within the intraluminal gastrointestinal tract from any location between the upper oesophagus to the duodenum at the Ligament of Treitz
Whats more common: UGIB and LGIB?
UGIB is more common than bleeding from the lower GI tract, accounting for 70% of all gastrointestinal bleeding.
Local causes of UGIB?
Best considered anatomically
1. Oesophagus
- Oesophagitis, Varices, Oesophageal Tumours
2. Stomach
- Erosive Gastritis, Gastric Ulcers, Gastric Tumours, Isolated Gastric Varices, Dieulafoy’s Lesion
3. Mallory-Weiss Syndrome
4. Duodenum
- Severe Duodenitis, Duodenal Ulcers, Duodenal Erosion (Pancreatic Tumour)
General/Systemic Causes of UGIB?
Bleeding Diathesis
1. Haemophilia, Leukaemia, Thrombocytopaenia
2. Hereditary haemorrhagic telangiectasia
3. Anticoagulant therapy
What is portal hypertension?
Obstruction in the portal tree
1. Pre-hepatic
2. Hepatic
3. Post-hepatic
Causes of portal hypertension?
Cirrhosis is by far the commonest cause of portal hypertension
- May not be true in Malawi!
> Shistosomiasis – periportal fibrosis
Portosystemic shunts in portal hypertension?
- Left gastric vein and oesophageal veins
- Superior and inferior rectal veins
- Obliterated umbilical vein & epigastric veins
- Retroperitoneal & diaphragmatic anastomoses
Describe left gastric vein and oesophageal veins?
- Largest & clinically the most important connections
- Bleeding oesophageal varices is the most serious complication of PHTN
Presentation of portal hypertension?
- With portal congestion
- Splenomegaly
- Often associated with hypersplenism - Umbilical vein recanalization
- which leads to the caput medusae - Ascites
- Anorectal varices
What is peptic ulcer disease?
An imbalance between acid secretion and mucosal defense mechanisms
Causes of peptic ulcer disease?
- Helicobacter pylori (H. pylori) infection
- 90% - 95% DU & 70% - 90% GU - Nonsteroidal anti-inflammatory drug (NSAID)
- Cigarette smoking
- Acid hypersecretion
Peptic ulcer disease and H. Pylori?
- The prevalence ofH. pyloriinfection within sub-Saharan Africa is quite high, with epidemiologic studies showing infection rates of 60-100% in many areas of the region.
- Because of the high prevalence, a positive screening test forH. pylorishould be considered to represent an infection if the patient has not been treated.
Leading cause of death in PUD?
Hemorrhage is the leading cause of death due to PUD ~ 5% to 10% mortality
Most common cause of UGIB?
peptic ulcer bleeding is the most common cause of upper gastrointestinal bleeding
- responsible for about 50% of all cases, followed by oesophagitis and erosive disease worldwide, some studies in Africa indicate esophageal varices as the most common cause
Clinical presentation of UGIB?
- Dysphagia/Odynophagia
- Haematemesis (Haemorrhagic shock)
- Abdominal pains
- Chronic anaemia symptoms
- Stigmata of liver disease
- Malaena