The phrenic nerve may be damaged after cardiac surgery.
Question: What effect does a damaged phrenic nerve have on the diaphragm?
The phrenic nerve may be damaged after cardiac surgery.
Question: What effect does a damaged phrenic nerve have on the diaphragm?
Answer: Phrenic nerve palsy causes upward paradoxical movement of the diaphragm on that side during inspiration. Diagnosis is made by screening the diaphragm by fluoroscopy.
Question: Can you name some conditions that may limit diaphragmatic movement?
The phrenic nerve may be damaged after cardiac surgery.
Question: What effect does a damaged phrenic nerve have on the diaphragm?
Answer: Phrenic nerve palsy causes upward paradoxical movement of the diaphragm on that side during inspiration. Diagnosis is made by screening the diaphragm by fluoroscopy.
Question: Can you name some conditions that may limit diaphragmatic movement?
Answer: Diaphragmatic movement can be limited by anything that distends the abdomen, such as:
Diaphragmatic impairment caused by gastric distension following bag mask ventilation can be a particular problem in children (Fig 1).