Boston Children’s Hospital · Decision guide

Boston Children’s Hospital: heart surgery expertise

Name: Boston Children’s Hospital: heart surgery expertise
Creator: Yevhenii Kozlov

Boston, United States · Complex two-ventricle reconstruction with long-term planning

Research by Yevhenii Kozlov · Co-Founder of BookimedUpdated 8 October 2026Sources linked throughout

At a glance

Boston Children’s Complex Biventricular Repair Program evaluates difficult ventricular relationships using detailed imaging and 3D models. Its research addresses both protection of the conduction system during repair and the later burden of conduit procedures.

Anatomical reconstruction

The programme describes tailored outflow and valve reconstruction for unusual ventricular connections.

Sources: Biventricular repair linked to better outcomes in superior-inferior ventricles treatment

Conduction mapping evidence

A study compared 149 mapped repairs with 201 controls; heart-block/pacemaker frequency was lower in selected anatomical subgroups.

Sources: Intraoperative Conduction Mapping to Reduce Postoperative Atrioventricular Block in Complex Congenital Heart Disease.

Later procedures can be expected in some pathways

In the 25-patient Yasui series, freedom from conduit reoperation was 48% at median five-year follow-up.

Sources: The Yasui operation: A single institutional experience over 30 years.

Conduction mapping during biventricular repair at Boston Children’s: the source identifies Elizabeth DeWitt, Eric Feins and Sitaram Emani. Photo courtesy of Benjamin Eckstein/Beryllium Pictures; published January 2025. · Image source ↗

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Clinical benefits and limitations

Potential advantages

Detailed anatomical modelling and tailored reconstruction create a two-ventricle pathway for selected difficult congenital hearts.
Sources: Biventricular repair linked to better outcomes in superior-inferior ventricles treatment · Intraoperative Conduction Mapping to Reduce Postoperative Atrioventricular Block in Complex Congenital Heart Disease. · The Yasui operation: A single institutional experience over 30 years. · Sitaram Emani — research and clinician directory

Trade-offs and limits

The Yasui operation requires two adequate ventricles with VSD and aortic atresia or interrupted arch. Neither that study nor the observational mapping results apply to every child with a septal defect.
Sources: Biventricular repair linked to better outcomes in superior-inferior ventricles treatment · Intraoperative Conduction Mapping to Reduce Postoperative Atrioventricular Block in Complex Congenital Heart Disease. · The Yasui operation: A single institutional experience over 30 years. · Sitaram Emani — research and clinician directory

Specialists and their clinical work

Portrait source ↗

Boston · United States

cardiac surgeon

Sitaram Emani →

Sitaram Emani co-directs Boston Children’s Complex Biventricular Repair Program. The work focuses on whether unusual ventricular connections, valves and outflow routes can be reconstructed so that both ventricles support circulation.

Boston Children’s Hospital →

Sources: Biventricular repair linked to better outcomes in superior-inferior ventricles treatment · Intraoperative Conduction Mapping to Reduce Postoperative Atrioventricular Block in Complex Congenital Heart Disease.

View expertise and research →

Procedure-specific research

Read alongside Sitaram Emani’s profile →

Protecting the conduction system

A 2024 programme study compared intraoperative conduction mapping with unmapped complex repairs. Lower postoperative heart-block/pacemaker frequency occurred in selected anatomical subgroups.

How to interpret this: Observational comparison; risk was not eliminated and not every subgroup benefited. Results belong to the programme.