Medtronic freestyle valves in right ventricular outflow tract reconstruction

Hartz, Renée S.; DeLeon, Serafin Y.; Lane, Jason; Dorotan, J.G.; Joyce, James J.; Urbina, Elaine M.; Ross-Ascuitto, Nancy; Ascuitto, R.J.

doi:10.1016/s0003-4975(03)01301-8

Cited by 34 publications

(17 citation statements)

References 20 publications

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“…Previous reports of stentless porcine valves in the right ventricular outflow tract position have been relatively few and have demonstrated mixed results, particularly with the development of stenosis and need for re-operation [2][3][4][5][6][7][8].…”

Section: Discussionmentioning

confidence: 99%

“…Valve choices vary from cryopreserved allografts, bovine jugular venous valved conduits, and stented or stentless bioprostheses. Stentless porcine valves have been utilized extensively in the left ventricular outflow tract in adults [1], but information on durability in the right ventricular outflow tract has been limited, particularly in children [2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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Stentless porcine valves in the right ventricular outflow tract: improved durability?☆

Hawkins

Sower

Lambert

et al. 2009

European Journal of Cardio-Thoracic Surgery

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Stentless porcine valves in the right ventricular outflow tract: improved durability?☆

Hawkins

Sower

Lambert

et al. 2009

European Journal of Cardio-Thoracic Surgery

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“…This has been surgeon preference due to its firmer structure than a pulmonary homograft and it tends to resist minor distortion, especially when used in a nonorthotopic position. Most previous reports have described short‐term outcomes . A recent study described midterm outcomes in a predominantly young adult population .…”

Section: Introductionmentioning

confidence: 99%

Midterm outcomes of right ventricular outflow tract reconstruction using the Freestyle xenograft

Kuo

Hamby

Munawar

et al. 2019

Congenital Heart Disease

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Objective Various options exist for right ventricular outflow tract (RVOT) reconstruction in congenital heart disease. The Freestyle porcine aortic root may be used but its longevity is not well defined. Design We performed a retrospective review of all non‐Ross RVOT reconstructions using the Freestyle root in our institution. Survival and reintervention, either by surgery, transcatheter valve implantation, balloon valvuloplasty, or bare metal stent placement, were recorded. Factors associated with reintervention were assessed using Cox regression. Results Between January 2002 and December 2015, there were 182 patients identified. Sixteen patients were lost to follow‐up and 3 patients died, unrelated to cardiac surgery. Of the remaining 163 patients, the median age was 12.2 years (interquartile range 6.4‐16.4), median weight was 39.0 kg (interquartile range 19.9‐59.3), and the median body surface area was 1.23 m2 (interquartile range 0.79‐1.64). Ninety‐three (57%) patients had tetralogy of Fallot. The median follow‐up was 5.4 years (interquartile range 2.9‐8 years). There were no operative or cardiac‐related deaths. Thirty‐eight patients (23%) required reintervention. The rate of freedom from reintervention was 93.2% (95% CI 86.7%‐96.6%) at 5 years and 48.4% (95% CI 34.9%‐60.6%) at 10 years. Age < 10 years, weight < 39 kg, and body surface area <1.2 m2 at the time of valve placement, as well as valve size ≤25 mm were significantly associated with need for earlier reintervention. Conclusions The Freestyle root in the RVOT is associated with excellent survival and low midterm need for reintervention. Its longevity is comparable to published data on homografts and other bioprosthetic valves.

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“…-бычий ксеновенозный кондуит Contegra. Последний при-обрел значительную популярность и по сей день исполь-зуется в большинстве хирургических центров [6,17]. Кро-ме того, были разработаны еще несколько ксенокондуи-тов, не применявшихся в столь же широких масштабах: LabCor, TissueMed, Bio-Cor и Shelhigh [18][19][20][21].…”

Section: эволюция проблемыunclassified

“…), отсутствие малых диа-метров кондуита (менее 19 мм) для новорожденных детей и младенцев, недостаточная длина трубчатой части, по-этому у большинства детей имплантат удлиняют с помо-щью заплат из ксеноперикарда, кондуитов из полите-трафторэтилена или дакрона [12,17,[54][55][56].…”

Section: ксенокондуит Freestyleunclassified