A new technique in advancing the catheter from the left atrium to the left ventricle

Area of Science:

• Pediatric Cardiology
• Interventional Cardiology
• Medical Devices

Background:

• Right heart catheterization is a common diagnostic procedure in pediatric cardiology.
• Accessing the left heart chambers from the right heart can be challenging, especially in infants.
• Existing techniques may have limitations in terms of safety and applicability in pediatric populations.

Purpose of the Study:

• To describe a new technique for advancing a catheter from the left atrium to the left ventricle during right heart catheterization.
• To evaluate the feasibility, success rate, and safety of this novel loop-technique in pediatric patients.

Main Methods:

• A specific catheter manipulation involving clockwise twisting to create a loop against the left atrial wall was employed.
• The technique requires a soft catheter and biplane fluoroscopy.
• The procedure was performed during routine cardiac catheterizations in infants and children.

Main Results:

• The loop-technique was attempted in 95 out of 162 pediatric patients.
• Successful left atrial to left ventricular catheter advancement was achieved in 66 patients (success rate of approximately 69.5%).
• The technique was generally successful within one or two attempts, with no major complications reported besides two brief episodes of bradycardia.

Conclusions:

• The described loop-technique is a safe, easy-to-perform method for trans-left atrial catheterization in pediatric cardiac procedures.
• It demonstrates a reasonable success rate and appears particularly useful in infants utilizing 5F catheters.
• This technique offers a valuable alternative for left heart access in pediatric interventional cardiology.