Phased‐Array Intracardiac Echocardiography for Guiding Transseptal Catheter Placement: Utility and Learning Curve
Why the study?
Does phased-array intracardiac echocardiography reliably guide transseptal catheter placement in a canine model?
Population
45 dogs undergoing 69 transseptal catheterization crossing attempts
Design
Preclinical
Authors
Discussion
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Member takes
Implication
Animal data confirm technical feasibility; leaves open applicability to human transseptal procedures.
Key Points
- This study aims to assess the effectiveness of phased-array intracardiac echocardiography in guiding transseptal catheter placement in dogs.
- 69 attempts at transseptal catheterization in 45 dogs were conducted using a phased-array ultrasound system.
- Imaging was performed from the right atrium, focusing on the membranous fossa ovalis and surrounding structures.
- Complications such as perforation and effusion were monitored using the echocardiography.
- Transseptal catheterization was successful in 44 of 45 dogs, with a 97.8% success rate.
- First attempts were successful in 40 out of 45 attempts (88.9%).
- Three cases of posterior left atrial perforation were identified, highlighting the need for monitoring.
Structured PICO
Does phased-array intracardiac echocardiography reliably guide transseptal catheter placement in a canine model?
P
Population
45 dogs undergoing 69 transseptal catheterization crossing attempts
I
Intervention
Intracardiac 64-element, phased-array, longitudinal ultrasound imaging system (multifrequency 7.5-8.5 MHz) for guiding transseptal catheterization
O
Outcome
Successful transseptal catheterization and adequate imaging of crossing
Phased-array intracardiac echocardiography provides a highly reliable method for guiding transseptal access and recognizing procedural complications in a canine model.
Cite This Study
Johnson et al. (2002) studied this question.