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Low profile sheaths in pediatric neurointervention: a multicenter experience.
Karen Chen1, Demi Dawkins2, Darren B Orbach3
1Radiology, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas, USA kxchen1@texaschildrens.org.
Journal of Neurointerventional Surgery
|October 9, 2021
Summary
New low-profile sheaths (3.3F Pediavascular, 4F Merit Prelude Ideal) are safe and effective for pediatric neurointervention. These devices facilitate microcatheter use in young patients, offering comparable outcomes to historical controls.
Area of Science:
- Pediatric neurointervention
- Vascular access
- Minimally invasive techniques
Background:
- Pediatric neurointervention faces challenges with adult-sized devices.
- This study evaluates the smallest groin access sheaths for pediatric use.
Purpose of the Study:
- To assess the technical notes and clinical outcomes of using small-profile sheaths in pediatric neurointervention.
- To compare outcomes with historical data using larger sheaths.
Main Methods:
- Retrospective review of pediatric neurointerventional cases (2019-2021).
- Analysis of 3.3F Pediavascular and 4F Merit Prelude Ideal sheath use.
- Comparison with a historical cohort using 4F Terumo Pinnacle sheaths in infants.
Main Results:
- Forty-four procedures used the small-profile sheaths in 26 pediatric patients (average age 2.2 years).
- Common indications included retinoblastoma infusion, vein of Galen embolization, and angiography.
- Morbidity was low (4.5%), with no major groin complications, comparable to historical data.
Conclusions:
- The 3.3F and 4F low-profile sheaths are valuable additions to pediatric neurointerventional tools.
- These sheaths accommodate microcatheters for complex procedures.
- They offer safe and effective vascular access in infants and children.

