A study was conducted comparing electrocardiogram (ECG) and X-ray methods for locating the tip of peripherally inserted central catheters (PICCs) in critically ill cancer patients in Hebei Province, China.
Out of 137 patients, specific P waves on ECG were detected in 130, indicating successful catheter placement, while 7 patients showed no changes in their P waves, and they were notably older.
The findings suggest that using ECG for PICC tip localization can potentially replace unnecessary X-rays, but further evaluation is needed for elderly patients before catheter placement.