Defining peripherally inserted central catheter tip position and an evaluation of insertions in one unit

Area of Science:

• Vascular Access
• Medical Imaging
• Patient Safety

Background:

• Peripherally inserted central catheters (PICCs) are widely used for central venous access.
• Current "blind" PICC insertion relies on anthropometric methods and operator experience, leading to poorly defined malposition rates.
• Challenges exist in defining adequate catheter tip position on chest radiographs and accounting for patient-specific factors.

Purpose of the Study:

• To develop a reproducible method for defining PICC tip position on chest radiographs.
• To retrospectively analyze malposition rates of "blindly" inserted PICCs.
• To compare malposition rates between intensive care unit (ICU) and non-ICU patients.

Main Methods:

• A reproducible method for assessing PICC tip position on chest radiographs was developed.
• A retrospective analysis included 256 ICU and 243 non-ICU PICC insertions over six months.
• Two distinct definitions of adequate catheter position were applied.

Main Results:

• "Blind" PICC positioning demonstrated high malposition rates, ranging from 42% to 76% depending on the definition used.
• Malposition rates were significantly elevated in ICU patients compared to non-ICU patients.
• The study highlights variability and potential inaccuracies in current "blind" PICC insertion techniques.

Conclusions:

• "Blind" PICC insertion is associated with substantial malposition rates, necessitating improved placement strategies.
• ICU patients represent a higher-risk group for PICC malposition.
• Emerging technologies hold promise for enhancing the accuracy and safety of PICC insertions.