General Flashcards
What factors must you take into account when assessing the severity of an upper GI bleed?
- Young people tend to compensate and then crash hard
- Diabetics have poor autonomic response
- People on B-blockers can give you a false reassurance of pulse
What should AF with abdominal pain always make you thing of?
Mesenteric ischaemia
Acute mesenteric ischaemia? What are the various causes and which patients do these occur in? Classical presentation triad? Tests? Treatment?
Superior mesenteric
- thrombosis
- embolism from AF
Mesenteric vein thrombosis - more common in younger patients in a hypercoagulable state
Non-occlsuive - occurs in low flow states e.g. post cardiac surgery
1. Acute severe abdominal pain
2. No abdominal signs
3. Rapid hypovolaemia –> shock
Pain out of proportion to normal clinical findings
If non-viable, then resect, otherwise resuscitation with fluid, antibiotics and heparin
Chronic mesenteric ischaemia
Classic triad and other symptoms?
What is often in the history?
Treatment?
Aka intestinal angina
1. Severe, colicky, post prandial abdo pain
2. Low weight
3. Upper abdo bruit
+/- PR bleeding, malabsorption, N&V
Often patient has a history of vascular disease
Surgery should be considered due to the ongoing risk of infarction; percutaneous transluminal angioplasty and stent insertion is replacing revascularisation