Neoaortic Aneurysm After Stage I Norwood Reconstruction

Ehsan, Afshin; Singh, Harbinder; Vargas, Sara O.; Sachweh, Joerg S.; Jonas, Richard A.

doi:10.1016/j.athoracsur.2004.10.056

Cited by 22 publications

(22 citation statements)

References 4 publications

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“…The aneurysmal site could presumably have been dilated because of the distending pressure attributed to the resistance to forward flow at the anastomosis site (distal end of the aneurysmal neo-aorta). Previous reports also depicted the occurrence of the enlargement of neo-aorta with homograft6 as well as autologous patch plasties 7. Influence of the type of materials used on the occurrence of aortic arch enlargement remains unclear and needs to be clarified in the future study.…”

Section: Discussionmentioning

confidence: 98%

Stenosis of a Reconstructed Aorta Caused a Paradoxical Diastolic Pressure Gradient after Norwood Operation

Masutani

Saiki

Ishido

et al. 2012

Clin Med Insights Cardiol

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An infant with hypoplastic left heart syndrome showed paroxysmal episodes of bradycardia, hypotension, and hypoxemia upon crying after modified Norwood operation. Echocardiography showed decreased right ventricular ejection with grade III tricuspid regurgitation, a markedly enlarged aortic arch, and accelerated blood flow distal to the enlarged aorta. Aortography demonstrated an aneurysmal neo-aorta with an apple-shaped appearance. The pressure measurements revealed intriguing aortic hemodynamics: the diastolic pressure of the ascending aorta was lower than that of the descending aorta (42 mmHg vs. 52 mmHg) despite no systolic pressure gradient. Markedly reduced compliance in the ascending aorta relative to that in the descending aorta, which was suggested by the difference in time constant of aortic pressure decay, may explain this hemodynamics. Impaired coronary circulation caused by lowered diastolic pressure in ascending aorta was indicated by reduced subendocardial viability ratio, and may account for her symptom and lowered ventricular ejection. The patient’s condition was indeed significantly improved by surgical correction of the aortic shape. This case highlights the importance of aortic shape and properties after Norwood operation.

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Section: Discussionmentioning

confidence: 98%

Stenosis of a Reconstructed Aorta Caused a Paradoxical Diastolic Pressure Gradient after Norwood Operation

Masutani

Saiki

Ishido

et al. 2012

Clin Med Insights Cardiol

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“…Existing data are limited to case reports of aortic aneurysm or dissection with or without concomitant aortic valve dysfunction requiring surgical repair,8 9 or focus solely on patients with HLHS 1 10. To our knowledge, there are no reports that systematically characterise aortic dimension in the functional single-ventricle population or its relationship to aortic (or neoaortic) valve function.…”

Section: Introductionmentioning

confidence: 99%

Factors associated with severe aortic dilation in patients with Fontan palliation

Kim

Rathod

Keenan

et al. 2016

Heart

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“…6,7,11 The causative factor may be the right ventriculotomy required to place the Sano shunt. 3,6,7,[11][12][13] Although both BlalockTaussig and Sano shunts have been used successfully for many years, evidence on which approach offers the greatest benefit is inconclusive. In our case, a rare complication, formation of an aneurysm at the Sano shunt, was successfully treated.…”

Section: Resultsmentioning

confidence: 99%