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Help us understand CHD!

Welcome to the Congenital Heart Surgeons' Society

49th Annual Meeting

Abstract submission is now closed.

Dr. James S. Tweddell

The CHSS community mourns the passing of CHSS President James Tweddell, MD.
Dr. Tweddell passed on July 1, 2022.

James S. Tweddell
James S. Tweddell, MD
September 2, 1959 - July 1, 2022

Learn From AATS Experts in the Field of Congenital Heart Surgery

The AATS Foundation is pleased to offer the following congenital-focused fellowship opportunities. Don't miss your chance to train with AATS leaders in the field, submit your application by July 1.

Aldo R. Castaneda Fellowship
Provides Latin American congenital heart surgeons with a traveling fellowship in North America. An award of up to $15,000 for three months of training or $7,500 for one month of training will be provided to successful candidates to defray travel and living expenses while abroad. Awardees are also provided with a stipend to help offset AATS Annual Meeting registration costs. The deadline to apply is July 1.

Marc R. de Leval Fellowship
Supports an opportunity for North American trainees and early-career congenital heart surgeons to obtain an international surgical experience as part of their education. Successful candidates will be awarded up to $15,000 to spend four to six weeks studying congenital heart surgery clinical techniques at an institution outside of North America while developing relationships with international leaders in the field. The deadline to apply is July 1.

Dr. Aldo R. Castaneda July 17, 1930 – April 30, 2021

CHSS Tribute to Dr. Aldo Castaneda

The Congenital Heart Surgeons' Society mourns the passing of one its founding members, Dr. Aldo R. Castañeda. Dr. Castañeda died on April 30 at the age of 90 in Guatemala. Dr. Castañeda was an absolute giant in the field of congenital heart surgery. He is the father of the modern congenital heart surgery unit and pioneered neonatal and early corrective surgery...
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Membership In The Congenital Heart Surgeons' Society
The CHSS is accepting applications for Active and Associate membership in the Society! Individuals who have a significant interest in congenital heart surgery may apply for membership in the Congenital Heart Surgeons’ Society (CHSS). Learn more...
Deadline to Submit an Application for Membership is June 30, 2021


CHSS branded silk neckties and silk scarves
The CHSS has partnered with Vineyard Vines to create CHSS branded silk neckties and silk scarves to benefit The Kirklin/Ashburn Fellowship Fund. Each $100 donation will include the item of your choice!


The congenital heart surgery community is coming together in full support of each other. As part of this, the CHSS has created a CHSS-member only ListServ, where our congenital heart surgeon members can communicate in a private forum and share ideas, ask questions, and seek insight and assistance as the COVID-19 situation continues to evolve. To opt in and be part of this online community, please send an email to:


CHSS Data Center

The Congenital Heart Surgeons' Society (CHSS) is a premier organization of heart surgeons who treat defects in the heart existing from birth. The CHSS Data Center is devoted to encouraging and stimulating investigations and studies that will increase the knowledge of congenital cardiac physiology, pathology and therapy, and to correlate and disseminate such knowledge.

Each year, thousands of surgeries are performed on children born with heart conditions. The Congenital Heart Surgeons' Society (CHSS) Data Center is dedicated to research to find better treatment for children with congenital heart disease.

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John W. Kirklin/David Ashburn Fellowship Endowment Fund

The Kirklin/Ashburn Fellowship Fund was established to support the CHSS Data Center Research Fellow. In 2008, CHSS changed the name of the John W. Kirklin Fellowship Endowment Fund to the John W Kirklin/David A. Ashburn Fellowship Endowment Fund. This change was made in recognition of Dr. David Ashburn, the very first Kirklin Fellow, who was tragically killed when his flight crashed on June 4, 2007 after procuring a donor organ for transplantation.

The CHSS Data Center, located at the Hospital for Sick Children in Toronto, plays a crucial role in recording, analyzing and tracking the data of many patients with congenital heart disease. Moreover, the Research Fellow is critical to furthering the goals of both the CHSS and the Data Center while providing an outstanding research experience for a young trainee. In order to recruit the very best talent available, we must ensure that the John W. Kirklin/David Ashburn Fellowship Fund is fully supported.

Make a Contribution
View a Current List of Donors


CTSNet Congenital Specialty Portal


TSDA Congenital Cardiac Surgery Fellowship Committee



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