Key result
Conservative medical management stabilizes type B aortic dissection after stage 1 palliation through stage 2.
Why the study?
Pediatric aortic dissection is rare, particularly in infants without known genetic aortopathy following the Norwood stage 1 palliation.
Case Report (n=1)
No
Stanford type B aortic dissection rarely occurs following the Norwood operation for single ventricle heart disease and can be safely medically managed in pediatric patients, similar to adult guidelines.
Answers are grounded in this paper and cite their sources.
Supports conservative management of uncomplicated type B dissection in infants; extends adult guidelines but remains hypothesis-generating.
BACKGROUND: Pediatric aortic dissection (AD) is rare and usually associated with hypertension or aortopathies. In this case, we present a Stanford type B dissection in an asymptomatic patient with single ventricle heart disease without known genetic aortopathy following stage 1 palliation. CASE SUMMARY: Dissection was diagnosed on routine catheterization and confirmed on computed tomography angiography. There was no progression, so no surgical intervention was pursued. He underwent stage 2 palliation at age 6 months and continues to do well. DISCUSSION: AD is rare in pediatrics, especially infants without aortopathy. A single iatrogenic case report after hybrid palliation has been described. Our patient had at least 2 risk factors, aortic coarctation and intermittently elevated blood pressure, that could have predisposed him to dissection. TAKE-HOME MESSAGES: AD is rarely seen following the Norwood operation. Stanford type B AD can be safely medically managed in pediatric patients as in the adult guidelines.
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Pook et al. (2026) conducted a case report in Stanford type B aortic dissection following stage 1 palliation (Norwood operation) in single ventricle heart disease (n=1). Conservative medical management (no surgical intervention for aortic dissection) was evaluated on Progression of aortic dissection and clinical status through stage 2 palliation. Conservative medical management of Stanford type B aortic dissection after stage 1 palliation showed no progression in 1 infant, allowing successful stage 2 palliation at 6 months of age.
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