from Section 5.2 - Practical Cardiovascular System
Published online by Cambridge University Press: 27 July 2023
Key Learning Points
1. Cardiac tamponade is a life-threatening condition resulting from compression of the heart by accumulating fluid, blood, clots or pus within the pericardium.
2. The clinical picture is one of obstructive shock, characterised by equalisation of intra-cardiac pressures.
3. The amount of fluid required to cause cardiac tamponade varies and depends on the speed of accumulation, compliance of the pericardium and volume of fluid.
4. In a patient with clinical suspicion of tamponade, echocardiography is recommended as the first imaging technique to assess the size, location and haemodynamic impact of the pericardial effusion.
5. Cardiac tamponade is an indication for urgent pericardiocentesis or surgery.
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