Chief - Paediatric Cardio Thoracic and Vascular Surgery (CTVS), Artemis Hospitals, Gurgaon, India
Part 13 of 14 in Correct Timing for Congenital Heart Surgery
Truncus Arteriosus: Why Newborns Need Surgery at Diagnosis
August 6, 2026
Truncus arteriosus should be repaired at diagnosis, even in a newborn, because untreated truncus arteriosus has extremely high early mortality, with only about half of children surviving their first month of life.
What truncus arteriosus is
Truncus arteriosus is a congenital heart condition combining a ventricular septal defect with a single trunk artery arising from the heart, rather than separate pulmonary artery and aorta, with this trunk giving rise to both the pulmonary arteries and the aorta.
Why untreated truncus arteriosus is so dangerous
Without treatment, only around 50 percent of children with truncus arteriosus survive their first month of life, and only around 30 percent survive beyond 3 months. This is among the highest early mortality rates of the common congenital heart conditions.
Why repair happens at diagnosis
Because survival after surgery for truncus arteriosus is reasonably good, and the untreated mortality is so high early in life, surgery is recommended exactly at diagnosis. If the child is a newborn at the time of diagnosis, repair is carried out at newborn age rather than delayed, reflecting the same urgent, diagnosis-driven approach used for other high-risk conditions within congenital heart surgery.
Families evaluating congenital heart surgery in India for a newborn with truncus arteriosus should expect the surgical team to move quickly once the diagnosis is confirmed, since every week of delay adds meaningfully to the risk of the child not surviving to reach the operating theatre at all.
← Coarctation of the Aorta: Why Immediate Surgery Prevents Death and Lifelong Hypertension | Series index | TGA with VSD and Pulmonary Stenosis: Rastelli and Nikaidoh Procedures →
This article is based on a Jivo Masterclass session conducted by Dr. Aseem R. Srivastava, Chief, Paediatric CTVS and Adult Congenital Heart Diseases, Artemis Hospitals, Gurgaon, India. The article has been summarised with the assistance of an AI tool from the original masterclass recording. Watch the full Masterclass recording
This guide is based on a live Jivo Masterclass — Dr. Aseem R. Srivastava taught doctors across Africa on August 31, 2025.
FROM THE LIVE Q&A
Dr. Aoke (Ethiopia)
What is the correct timing for a patient with transposition of the great arteries (TGA), VSD, and LVOT obstruction? Also, since we live in a resource-limited country where diagnosis is sometimes made late, and patients may then ask for treatment abroad after a late diagnosis, what is your recommendation for handling late presenters, especially with simple shunt lesions?
Dr. Aseem R. Srivastava
For TGA with VSD and LVOT obstruction, these kids essentially have pulmonary stenosis with a VSD, and timing depends on the kid's oxygen saturation — they will need a Rastelli or a Nikaidoh operation, both requiring an implant, and the intent is to give the biggest implant possible since a smaller implant means an earlier return for a change. If saturations are above 75% and the kid is growing and doing well, they can wait and have surgery at around one year of age; if saturations are less than 75% with significant failure to thrive, they should come for surgery at any age or weight. On late presenters: we are also a resource-limited country — four or five surgeons doing this work for half of India — and face the same problem of kids coming late every day. My suggestion is education programmes, including pulse oximeter screening at birth, 1 month, and 6 months, referring for an echo early if abnormal. Late-presenting PDAs and cyanotic conditions apart from TGA are usually still operable, even if at slightly higher risk, but VSD shunt lesions can become inoperable if too late — however, even when a kid looks clinically inoperable, we always offer a cardiac catheterisation to confirm, since a significant proportion will still turn out to be operable, if high risk. And even an inoperable VSD child, with good, appropriately timed medical management (diuretics, pulmonary vasodilators), can still survive 25–35 years, whereas without that care they will die much earlier.
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Frequently Asked Questions
What is the average cost of ASD closure?▼
Approximately 5,500 USD.
What is the correct timing for a patient with transposition of the great arteries (TGA), VSD, and LVOT obstruction? Also, since we live in a resource-limited country where diagnosis is sometimes made late, and patients may then ask for treatment abroad after a late diagnosis, what is your recommendation for handling late presenters, especially with simple shunt lesions?▼
For TGA with VSD and LVOT obstruction, these kids essentially have pulmonary stenosis with a VSD, and timing depends on the kid's oxygen saturation — they will need a Rastelli or a Nikaidoh operation, both requiring an implant, and the intent is to give the biggest implant possible since a smaller implant means an earlier return for a change. If saturations are above 75% and the kid is growing and doing well, they can wait and have surgery at around one year of age; if saturations are less than 75% with significant failure to thrive, they should come for surgery at any age or weight. On late presenters: we are also a resource-limited country — four or five surgeons doing this work for half of India — and face the same problem of kids coming late every day. My suggestion is education programmes, including pulse oximeter screening at birth, 1 month, and 6 months, referring for an echo early if abnormal. Late-presenting PDAs and cyanotic conditions apart from TGA are usually still operable, even if at slightly higher risk, but VSD shunt lesions can become inoperable if too late — however, even when a kid looks clinically inoperable, we always offer a cardiac catheterisation to confirm, since a significant proportion will still turn out to be operable, if high risk. And even an inoperable VSD child, with good, appropriately timed medical management (diuretics, pulmonary vasodilators), can still survive 25–35 years, whereas without that care they will die much earlier.
When should truncus arteriosus be repaired?▼
At diagnosis, even in a newborn, because untreated truncus arteriosus carries extremely high early mortality.
What is the survival rate for untreated truncus arteriosus?▼
Only around 50 percent of children survive their first month of life, and only around 30 percent survive beyond 3 months.
What is truncus arteriosus?▼
A condition combining a ventricular septal defect with a single trunk artery arising from the heart, rather than separate pulmonary artery and aorta, with this trunk giving rise to both the pulmonary arteries and the aorta.
In This Series: Correct Timing for Congenital Heart Surgery
- 1.Correct Timing for Congenital Heart Surgery
- 2.Atrial Septal Defect (ASD): Why the Best Age to Close It Is 3 to 4 Years
- 3.AV Canal Defect: Why Surgery Is Needed by 3 to 4 Months of Age
- 4.Coarctation of the Aorta: Why Immediate Surgery Prevents Death and Lifelong Hypertension
- 5.Cost of Congenital Heart Surgery in India
- 6.Late-Presenting Congenital Heart Disease: What to Do When Diagnosis Comes Too Late
- 7.What Makes a Good Paediatric Cardiac Surgery Programme
- 8.Patent Ductus Arteriosus (PDA): When to Close and How
- 9.Total Anomalous Pulmonary Venous Return (TAPVR): Why Surgery Cannot Wait
- 10.Tetralogy of Fallot: Timing of Repair and Why Waiting Is Dangerous
- 11.Transposition of the Great Arteries (TGA): Why Timing Is a Matter of Days
- 12.TGA with VSD and Pulmonary Stenosis: Rastelli and Nikaidoh Procedures
- 13.Truncus Arteriosus: Why Newborns Need Surgery at Diagnosis
- 14.Ventricular Septal Defect (VSD): When Small Holes Close on Their Own and When Surgery Can't Wait