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Tamponade Definition Limitations
- Defining tamponade isn't straightforward, lacking a gold standard besides therapeutic drainage.
- Studies on tamponade have varying definitions, making sensitivity/specificity calculations complex.
Physiology of Tamponade
- The key issue in tamponade isn't pericardial fluid volume, but pressure, impacting right heart filling.
- Acute effusions cause tamponade more easily than chronic ones due to limited pericardial stretch.
Tamponade's Fatal Spiral
- In tamponade, a vicious cycle of hypotension and hypoperfusion can lead to death.
- A vagal response can be the final trigger for cardiac arrest in tenuous patients.