Recovery guide Procedures explained
Understanding cardiothoracic surgery
Cardiothoracic is two specialties in one word: the heart and the rest of the chest. Which one you have had, and how the surgeon reached it, determines almost everything about your recovery.
Posthorax Australia · Reviewed 30 July 2026 · About a 4 minute read
Cardiac, thoracic, and why the distinction matters
Cardiac surgery treats the heart and its vessels: bypass grafting, valve repair and replacement, aortic surgery. Thoracic surgery treats the lungs, oesophagus, chest wall and mediastinum: lung resections, biopsies, tumour removal.
For recovery, the organ matters less than the route the surgeon took to reach it — because that determines which part of your chest wall has to heal.
Median sternotomy
The classic open-heart approach: a vertical incision down the centre of the chest, with the breastbone divided and later closed with wire. It gives excellent access to the heart, and it leaves a bone that needs six to eight weeks to knit.
This is why sternotomy patients get lifting limits, are told not to push up with their arms, and are offered chest support — and why the trials of external support were run on this population.
Thoracotomy and keyhole approaches
A thoracotomy enters between the ribs from the side. The breastbone is untouched, but the rib cage and the muscles and nerves between the ribs are, which is why this pain is felt on movement and breathing.
Keyhole approaches — VATS, and minimally invasive cardiac procedures — use small incisions and cameras. Less tissue is divided and recovery is often quicker, but the chest wall still needs support and the breathing exercises matter just as much.
For these approaches, the sized ThoraxBelt rather than the vest is the appropriate device — see the comparison.
Catheter-based procedures
Some heart conditions are now treated without opening the chest at all — TAVI, for example, delivers a replacement valve through a catheter. Recovery is faster, though chest stabilisation is still used in some units to manage discomfort and support early mobilisation.
Questions patients ask
+What is the difference between cardiac and thoracic surgery?
Cardiac surgery treats the heart and its vessels; thoracic surgery treats the lungs, oesophagus and chest wall. Both are performed by cardiothoracic surgeons, and the surgical approach used matters more to recovery than which organ was treated.
+What is a median sternotomy?
A vertical incision down the centre of the chest in which the breastbone is divided and then closed with wire. It is the standard approach for open-heart surgery, and the bone typically takes six to eight weeks to heal.
+Is keyhole heart surgery recovery quicker?
Often, because less tissue is divided. The chest wall still needs protecting and breathing exercises are just as important — your team will tell you which restrictions apply to your specific approach.
Who writes this, and what it is not
Written by Posthorax Australia, the Australian distributor of the POSTHORAX® range, for patients and families after cardiac surgery. General recovery guidance reflects standard postoperative practice; claims about the device come from the trials cited on our clinical evidence page.
We are not your treating team and this is not medical advice. Where anything here conflicts with your surgeon, GP, physiotherapist or cardiac rehabilitation service, follow them.
Reviewed 30 July 2026 · Corrections: sales@posthorax.com.au