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  • Title: Extensibility of autologous pericardium roll conduit in non-confluent pulmonary artery: a case report.
    Author: Yoneyama F, Okamura T, Harada Y.
    Journal: J Cardiothorac Surg; 2019 Jun 03; 14(1):99. PubMed ID: 31159878.
    Abstract:
    BACKGROUND: There is great discussion about non-confluent pulmonary artery (PA) reconstruction, and several materials have been used. Autologous pericardium is considered feasible for infectious resistance, autoimmune response, extensibility, and growth potential. CASE PRESENTATION: The patient was born at 39 weeks (body mass = 2550 g). He was diagnosed with tetralogy of Fallot, pulmonary atresia, non-confluent PA, and bilateral patent ductus arteriosus. Right and left Blalock-Taussig shunts with patent ductus arteriosus ligations were placed on day 27 and 3 months, respectively. At 19 months (8.8 kg), definitive repair was performed with tricuspid valved conduit concurrent with PA reconstruction using an autologous pericardium roll conduit. The autologous pericardium was treated with glutaraldehyde (autologous pericardium fixed with 0.4% glutaraldehyde for 7 min and rolled as conduit - 12 mm in diameter and 30 mm in length). Following an incision on the visceral side of the PAs before the 1st branch, the autologous pericardial roll conduit was anastomosed. Follow-up angiographies on postoperative months 9 and 57 demonstrated that the PA, including the autologous pericardium roll conduit, had spontaneously enlarged. CONCLUSION: Particularly for non-confluent PA, the patients require increased pulmonary beds at an early age because of hypoplastic PA. While size mismatch between the graft and native PA develops as the child grows, size-adjustable extensibility of the PA graft should be noted.
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