In patients scheduled for thoracic surgery or upper abdominal surgery, investigators will determine the accuracy of the epidural catheter placement by using fluoroscopic imaging. Previous studies have drawn contradictory conclusions based the potential flaw assumption of 100% success rate for correct epidural catheter placement in the thoracic region.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Presumed intervertebral level of epidural catheter
Timeframe: During procedure