Design and evaluation of collapsible pitch-adjusting impeller for use in mechanical cavopulmonary assist device of fontan patients

2021 ◽  
Author(s):  
Jay P. Patel
Keyword(s):  
Assist Device ◽  
Cavopulmonary Assist Device ◽  
Fontan Patients

scholarly journals A Cavopulmonary Assist Device for long-term Therapy of Fontan Patients

2021 ◽  
Author(s):  
Andreas Escher ◽  
Carsten Strauch ◽  
Emanuel J. Hubmann ◽  
Prof. Michael Hübler ◽  
Dominik Bortis ◽  
...  
Keyword(s):  
Term Therapy ◽  
Assist Device ◽  
Long Term Therapy ◽  
Cavopulmonary Assist Device ◽  
Fontan Patients

scholarly journals Computational fluid dynamic simulations of a cavopulmonary assist device for failing Fontan circulation

2019 ◽  
Vol 158 (5) ◽  
pp. 1424-1433.e5 ◽  
Author(s):  
W.C. Patrick Lin ◽  
Matthew G. Doyle ◽  
S. Lucy Roche ◽  
Osami Honjo ◽  
Thomas L. Forbes ◽  
...  
Keyword(s):  
Computational Fluid Dynamic ◽  
Fluid Dynamic ◽  
Fontan Circulation ◽  
Assist Device ◽  
Dynamic Simulations ◽  
Cavopulmonary Assist Device ◽  
Failing Fontan

Filament Support Spindle for an Intravascular Cavopulmonary Assist Device

2010 ◽  
Vol 34 (11) ◽  
pp. 1039-1044 ◽  
Author(s):  
Amy L. Throckmorton ◽  
Jugal Y. Kapadia ◽  
Thomas M. Wittenschlaeger ◽  
Tanisha J. Medina ◽  
Hien Q. Hoang ◽  
...  
Keyword(s):  
Assist Device ◽  
Cavopulmonary Assist Device

Design of a Novel Cavopulmonary Assist Device for Fontan Procedures: CFD, PIV, and Hydraulic Testing

2010 ◽  
Author(s):  
Jeffrey R. Kennington ◽  
Steven Frankel ◽  
Jun Chen ◽  
Mark D. Rodefeld ◽  
Guruprasad A. Giridharan
Keyword(s):  
Inferior Vena ◽  
Fontan Procedure ◽  
Pulmonary Arteries ◽  
Hydraulic Testing ◽  
Assist Device ◽  
Lung Resistance ◽  
Left And Right ◽  
The Right ◽  
Cavopulmonary Connection ◽  
Cavopulmonary Assist Device

Single ventricle heart disease is the leading cause of death for birth defects in children under one years of age [1]. The current surgical procedure requires the use of a shunt for the first stage of the surgery. The following surgeries remove the shunt but cannot be performed on a newborn due to higher lung resistance during the first weeks of life. The overall surgical process, known as the Fontan procedure, results in a reconstructed anatomy where the left and right pulmonary arteries are sutured to the superior and inferior vena cavae (SVC/IVC), hence bypassing the right heart. This anatomy is called a total cavopulmonary connection or TCPC.

A Numerical Simulation Comparing a Cavopulmonary Assist Device and VA ECMO for Failing Fontan Support

ASAIO Journal ◽  
2017 ◽  
Vol 63 (5) ◽  
pp. 604-612 ◽  
Author(s):  
Po-Lin Hsu ◽  
Dongfang Wang ◽  
Cherry Ballard-Croft ◽  
Dawei Xiao ◽  
Joseph B. Zwischenberger
Keyword(s):  
Numerical Simulation ◽  
Assist Device ◽  
Va Ecmo ◽  
Cavopulmonary Assist Device ◽  
Failing Fontan

A Systemic Ventricular Assist Device With a Fenestration in a Failing Fontan Patient

2019 ◽  
Vol 11 (2) ◽  
pp. 232-234
Author(s):  
Yuki Nakamura ◽  
Jimmy Windsor ◽  
Kenichi Ueda ◽  
Marco Ricci
Keyword(s):  
Ventricular Assist Device ◽  
Mechanical Circulatory Support ◽  
Circulatory Support ◽  
Mechanical Support ◽  
Assist Device ◽  
Fontan Patient ◽  
Ventricular Assist ◽  
Perioperative Course ◽  
Failing Fontan ◽  
Fontan Patients

Mechanical circulatory support in failing Fontan patients with Fontan circuit failure remains challenging. Herein, we describe a failing fenestrated Fontan patient who underwent systemic ventricular assist device support leaving the fenestration open. Perioperative course and hemodynamics during mechanical support are described in detail.

Systemic ventricular assist device support in Fontan patients: A report by ACTION

2021 ◽  
Author(s):  
Ari Cedars ◽  
Shelby Kutty ◽  
David Danford ◽  
Kurt Schumacher ◽  
S.R. Auerbach ◽  
...  
Keyword(s):  
Ventricular Assist Device ◽  
Assist Device ◽  
Ventricular Assist ◽  
Fontan Patients

scholarly journals Statistical Shape Modeling for Cavopulmonary Assist Device Development: Variability of Vascular Graft Geometry and Implications for Hemodynamics

2017 ◽  
Vol 11 (2) ◽  
Author(s):  
Jan L. Bruse ◽  
Giuliano Giusti ◽  
Catriona Baker ◽  
Elena Cervi ◽  
Tain-Yen Hsia ◽  
...  
Keyword(s):  
Vascular Graft ◽  
Pulmonary Arteries ◽  
Shape Modeling ◽  
Cardiac Anatomy ◽  
Assist Device ◽  
Landing Zone ◽  
Device Development ◽  
Statistical Shape ◽  
Statistical Shape Modeling ◽  
Cavopulmonary Assist Device

Patients born with a single functional ventricle typically undergo three-staged surgical palliation in the first years of life, with the last stage realizing a cross-like total cavopulmonary connection (TCPC) of superior and inferior vena cavas (SVC and IVC) with both left and right pulmonary arteries (LPA and RPA), allowing all deoxygenated blood to flow passively back to the lungs (Fontan circulation). Even though within the past decades more patients survive into adulthood, the connection comes at the prize of deficiencies such as chronic systemic venous hypertension and low cardiac output (CO), which ultimately may lead to Fontan failure. Many studies have suggested that the TCPC’s inherent insufficiencies might be addressed by adding a cavopulmonary assist device (CPAD) to provide the necessary pressure boost. While many device concepts are being explored, few take into account the complex cardiac anatomy typically associated with TCPCs. In this study, we focus on the extra cardiac conduit (ECC) vascular graft connecting IVC and pulmonary arteries (PAs) as one possible landing zone for a CPAD and describe its geometric variability in a cohort of 18 patients that had their TCPC realized with a 20 mm vascular graft. We report traditional morphometric parameters and apply statistical shape modeling (SSM) to determine the main contributors of graft shape variability. Such information may prove useful when designing CPADs that are adapted to the challenging anatomical boundaries in Fontan patients. We further compute the anatomical mean 3D graft shape (template graft) as a representative of key shape features of our cohort and prove this template graft to be a significantly better approximation of population and individual patient’s hemodynamics than a commonly used simplified tube geometry. We therefore conclude that statistical shape modeling results can provide better models of geometric and hemodynamic boundary conditions associated with complex cardiac anatomy, which in turn may impact on improved cardiac device development.

Sign in / Sign up

Export Citation Format

Share Document