Expanded Polytetrafluoroethylene Conduits With Bulging Sinuses and a Fan-Shaped Valve in Right Ventricular Outflow Tract Reconstruction

Hongu, Hisayuki; Yamagishi, Masaaki; Maeda, Yoshinobu; Fujita, Shuhei; Nakatsuji, Hiroki

doi:10.1053/j.semtcvs.2021.02.026

Cited by 11 publications

(16 citation statements)

References 26 publications

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“…Three bulging sinuses were added to improve the closing motion of the valves on the inner surface of the sinuses ( 12 ). Centers outside Japan generally use HVC without the bulging sinus, because the construction of a bulging sinus requires special device, and its existence may be nonessential in the pulmonary position ( 5 , 13 ). Other groups made various modifications on the valve configuration ( 7 , 14 , 15 ), or developed special templates for tailoring the valve ( 13 ).…”

Section: Discussionmentioning

confidence: 99%

“…The performance of HVCs has been demonstrated with promising durability. In a recent multicenter study from Japan involving 1,776 patients undergoing RVOT reconstruction with HVCs, freedom from reintervention was 86.7% at 5 years and 61.5% at 10 years ( 5 ). Relative conduit stenosis due to somatic growth was the most common reason for conduit explantation ( 5 ).…”

Section: Discussionmentioning

confidence: 99%

“…In a recent multicenter study from Japan involving 1,776 patients undergoing RVOT reconstruction with HVCs, freedom from reintervention was 86.7% at 5 years and 61.5% at 10 years ( 5 ). Relative conduit stenosis due to somatic growth was the most common reason for conduit explantation ( 5 ). Notably, in patients with large conduit size at implantation, freedom from reintervention was 98.9% at 5 years and 88.4% at 10 years, suggesting its long-term durability ( 16 ).…”

Section: Discussionmentioning

confidence: 99%

“…Notably, in patients with large conduit size at implantation, freedom from reintervention was 98.9% at 5 years and 88.4% at 10 years, suggesting its long-term durability ( 16 ). Intervention for stenosis at the distal anastomosis was uncommon compared to BJV conduits ( 5 ). Similarly, HVC regurgitation is more likely to occur in smaller conduit, but within acceptable values ( 5 ).…”

Section: Discussionmentioning

confidence: 99%

“…Homografts and bovine jugular vein (BJV) conduits have been widely used as RVOT conduits in western countries with favorable outcomes ( 3 ), but they are of limited availability in countries such as China. Handmade expanded polytetrafluoroethylene (ePTFE) valved conduits (HVCs) have been developed recently as an appealing alternative to homografts for RVOT reconstruction ( 4 , 5 ), but the specific experience in Ross procedure in pediatric population is limited in the literature ( 6 ). Our institution has taken the approach of constructing HVC for RVOT reconstruction for Ross procedure since 2018.…”

Section: Introductionmentioning

confidence: 99%

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Ross Procedure in the era of Handmade-Valved Conduits for Right Ventricular Outflow Tract Reconstruction in Children: Short-Term Surgical Outcomes

Dong

Chen

Jiang

et al. 2022

Front. Cardiovasc. Med.

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ObjectiveRoss procedure is considered as the “gold standard” for aortic valve replacement, but the conduits used for right ventricular outflow tract (RVOT) reconstruction, such as homografts and bovine jugular vein (BJV) conduits, are of limited availability in China. Handmade expanded polytetrafluoroethylene-valved conduits (HVCs) have been used recently as the alternative for RVOT reconstruction, but their specific experience in Ross procedure is limited in the literature.MethodsThis was a retrospective review of 27 children who underwent Ross procedure in our center from January 2018 to January 2022.ResultsMean age at surgery was 8.0 ± 3.8 years. During the study period, BJV conduits were used for RVOT reconstruction in 6 patients (22%), and HVCs were used in 21 patients (78%). Median conduit size was 20 mm (range, 16–24 mm), and mean conduit Z-score was +0.8 ± 0.9. Median time for cardiopulmonary bypass was 158 min (range, 109–275 min), and mean time for aortic crossclamping was 110 ± 21 min. There was no early mortality. During a median follow-up time of 1.4 years (range, 0.1–3.7 years), 3 patients (11%) with BJV conduits had peak conduit velocity of > 3.5 m/s; 3 patients (11%) with HVCs developed moderate conduit insufficiency; no patients had more than moderate conduit insufficiency. Three patients with BJV conduits had 5 reinterventions, and all received conduit replacement with HVCs.ConclusionHVC is an appealing alternative to BJV conduit for RVOT construction for children undergoing Ross procedure, with favorable short-term outcomes.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Ross Procedure in the era of Handmade-Valved Conduits for Right Ventricular Outflow Tract Reconstruction in Children: Short-Term Surgical Outcomes

Dong

Chen

Jiang

et al. 2022

Front. Cardiovasc. Med.

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Cardiovascular patches applied in congenital cardiac surgery: Current materials and prospects

Sun,

LaSala,

Giuglaris

et al. 2024

Bioengineering & Transla Med

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Congenital Heart Defects (CHDs) are the most common congenital anomalies, affecting between 4 and 75 per 1000 live births. Cardiovascular patches (CVPs) are frequently used as part of the surgical armamentarium to reconstruct cardiovascular structures to correct CHDs in pediatric patients. This review aims to evaluate the history of cardiovascular patches, currently available options, clinical applications, and important features of these patches. Performance and outcomes of different patch materials are assessed to provide reference points for clinicians. The target audience includes clinicians seeking data on clinical performance as they make choices between different patch products, as well as scientists and engineers working to develop patches or synthesize new patch materials.

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Handmade tri-leaflet ePTFE conduits versus homografts for right ventricular outflow tract reconstruction

Wang

Mao

et al. 2022

World J Pediatr

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Expanded Polytetrafluoroethylene Conduits With Bulging Sinuses and a Fan-Shaped Valve in Right Ventricular Outflow Tract Reconstruction

Cited by 11 publications

References 26 publications

Ross Procedure in the era of Handmade-Valved Conduits for Right Ventricular Outflow Tract Reconstruction in Children: Short-Term Surgical Outcomes

Ross Procedure in the era of Handmade-Valved Conduits for Right Ventricular Outflow Tract Reconstruction in Children: Short-Term Surgical Outcomes

Cardiovascular patches applied in congenital cardiac surgery: Current materials and prospects

Handmade tri-leaflet ePTFE conduits versus homografts for right ventricular outflow tract reconstruction

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