Trans-hepatic cannulation: a novel approach for placement of a pediatric percutaneous ventricular assist device.

Trans-hepatic cannulation: a novel approach for placement of a pediatric percutaneous ventricular assist device. Research Abstract Details 

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Trans-hepatic cannulation: a novel approach for placement of a pediatric percutaneous ventricular assist device. Abstract Text:

Jeffrey G Gossett,David H J Wang,Douglas E Smith,Eric J Devaney,Thomas R Lloyd,

Pediatric ventricular assist device (VAD) use is increasing. The TandemHeart PTVA system is a percutaneous VAD used in adults. Pediatric use is limited by cannula size. Trans-hepatic left atrial (LA) cannulation offers the possibility of shorter, larger-diameter cannulae, but specific requirements for cannula size and flow characteristics need to be developed. We evaluated the feasibility of trans-hepatic cannulation based on patient measurements and bench-top modeling. Two hundred patients admitted to the University of Michigan Pediatric CICU were evaluated. Patients over 14 years and dextrocardiac patients were excluded. The distance from the skin between the 10th and 11th ribs at the mid-axillary line to the left-heart border was measured on x-ray. LA size was measured on echocardiogram. From these measurements, prototype cannulae were fabricated. Benchtop testing of developed cannulae was performed with a pump speed of 8500 RPM and fluid viscosity of 4.0 cP at physiologic atrial and arterial pressures. Inlet pressure and deliverable flows were measured. The proposed design delivered sufficient flow with negative pressures low enough to avoid hemolysis. Trans-hepatic LA cannulation for percutaneous VAD placement is feasible. The shorter distance to the LA and larger hepatic vein size allows design of pediatric-appropriate cannulae with adequate flow rates.

Trans-hepatic cannulation: a novel approach for placement of a pediatric percutaneous ventricular assist device. Publishing Authors By Initials

JG Gossett,DH Wang,DE Smith,EJ Devaney,TR Lloyd,

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Trans-hepatic cannulation: a novel approach for placement of a pediatric percutaneous ventricular assist device. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: ASAIO journal (American Society for Artificial Int

VOLUME: 52

Page Numbers: 517-21

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ISSN: 1058-2916

DAY: 3

MONTH: 12

YEAR: 2007

Trans-hepatic cannulation: a novel approach for placement of a pediatric percutaneous ventricular assist device. Information

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LANGUAGE: eng

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AFFILIATION: Division of Pediatric Cardiology, C.S. Mott Children's Hospital, University of Michigan, Ann Arbor, Michigan 48109-0204, USA.

Country: United States

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MEDLINETA: ASAIO J

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