It was reported that the patient required left ventricular extracorporeal circulatory support.During insertion of the drainage cannula, while it was being pulled through the chest wall, it was noticed that the blue shrink seal at the distal end of the cannula was missing.After a brief search of the chest cavity, the blue shrink seal was found and placed back onto the cannula close to the original position.The patient did not suffer any adverse effects and the operation was concluded without further incident.No additional information was provided.
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