Journal article
Patient-Specific Patch for an Intra-Atrial Rerouting Procedure Developed Through Surgical Simulation
World journal for pediatric & congenital heart surgery, Vol.12(2), pp.234-243
03/01/2021
DOI: 10.1177/2150135120985469
PMID: 33683998
Abstract
Background:
In pediatric cardiac surgery, an application of three-dimensional (3D) modeling to develop custom-made prostheses is limited, and currently surgeons use their intraoperative visual estimation to develop 3D complex structures from 2D patch materials. Contemporary 3D designers are developing complex surfaces using surface modeling in other industries, which can be applied to pediatric cardiac surgery. However, its free-form nature may lead to intradesigner variability.
Methods:
A patient with a body weight of 4 kg with partial anomalous pulmonary venous connection and preoperative computed tomography data was selected, and a patient-specific 3D heart model was obtained. Through collaboration with a pediatric cardiologist and a pediatric cardiac surgeon, a 3D designer developed two patient-specific 3D patches for an intra-atrial rerouting procedure (IAR) for the patient using different methods of surface modeling. The shape and size of two flattened patches were analyzed using a geometric morphometrics (GM) approach. Computational fluid dynamics (CFD) analysis was also performed to calculate pressure drop across streamlines and flow energy loss in the right atrium for both patches.
Results:
The GM analysis showed that the size and shape of the two patches around the systemic vein orifice, crucial to prevent systemic venous obstruction, were almost equivalent. However, the CFD analysis showed that the pressure drop and flow energy loss were almost twice for one patch compared with the other.
Conclusions:
Our platform of developing a patient-specific 3D patch for an IAR procedure using surface modeling seemed promising, although intradesigner patch variability was not neglectable in our small-sized patient.
Details
- Title: Subtitle
- Patient-Specific Patch for an Intra-Atrial Rerouting Procedure Developed Through Surgical Simulation
- Creators
- Yuki Nakamura - University of IowaCharles Romans - University of IowaRavi Ashwath - University of Iowa
- Resource Type
- Journal article
- Publication Details
- World journal for pediatric & congenital heart surgery, Vol.12(2), pp.234-243
- DOI
- 10.1177/2150135120985469
- PMID
- 33683998
- NLM abbreviation
- World J Pediatr Congenit Heart Surg
- ISSN
- 2150-1351
- eISSN
- 2150-136X
- Number of pages
- 10
- Language
- English
- Date published
- 03/01/2021
- Academic Unit
- Stead Family Department of Pediatrics; Cardiothoracic Surgery
- Record Identifier
- 9985164053502771
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