Team 7

OnePunch: Pediatric, Size-Adjustable Aortic Punch for Arterial Switch Operation

Team Members: Daniella Asare, Priya Borah, Elena Gomez & Bhavya Sharma

Team Mentors: William Tyler, PhD - SBHSE
Jon Plasencia, PhD - Phoenix Children’s Hospital

YouTube Link: View the video link below before joining the zoom meeting

Zoom Link: https://asu.zoom.us/j/83496906981

Abstract

Transposition of the greater arteries (TGA) occurs in 1 in 3,413 babies born in the U.S. In this congenital heart defect, the aorta and pulmonary valve are switched which causes cyanosis. The heart defect can be fixed through arterial switch operation (ASO), where a button of the coronary artery is cut out for the placement of the neo-aorta. However, the aortic punches that are used currently do not have pediatric diameter sizes. They have static diameters, are one-time use, and are limited to adults. Our solution is a pediatric size-adjustable aortic punch that would use a compass-like technique to measure the diameter of the coronary arteries and a mechanism that would allow for cutting and retraction of the coronary artery tissue. Correct diameter size of the coronary artery is crucial because undersizing or oversizing the diameter of the coronary artery could lead to stenosis and negatively impact the postoperative hemodynamic profile.