Journals / Türk Göğüs Kalp Damar Cerrahisi Dergisi / 2001 / Cilt: 9 - Sayı: 2

Stentless porcine root replacement for ascending aortic aneurysm repair

Çıkan aort anevrizmalarının tamirinde stensiz domuz protezi ile aortik kök replasmanı

Pages
84–87
Publication Date
2022-09-02
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

However, their durability must be evaluated with long-term studies.

📌 3 Key Takeaways

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Objective & Hypothesis:Background: The clinical value of root replacement with Freestyle® stentless porcine bioprosthesis in the treatment of ascending aortic aneurysm with aortic valvular disease is assessed in regard to early and mid-term results.
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Key Findings & Data:Methods: Eighteen consecutive patients (13 male / 5 female) underwent elective stentless porcine aortic root implantation.
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Conclusion & Impact:However, their durability must be evaluated with long-term studies.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Background: The clinical value of root replacement with Freestyle® stentless porcine bioprosthesis in the treatment of ascending aortic aneurysm with aortic valvular disease is assessed in regard to early and mid-term results. Methods: Eighteen consecutive patients (13 male / 5 female) underwent elective stentless porcine aortic root implantation. Mean age was 52 ± 14 years. Seven patients were in NYHA class II, another 7 in class III, and 4 in class IV. Average ascending aortic diameter was 61 ± 7 mm (range 50 to 80 mm) with severe aortic regurgitation in all cases. The average left ventricular end systolic diameter (LVESD) was 44 ± 1 4 mm, end diastolic diameter (LVEDD) was 60 ± 14 mm, septal thickness (IVST) was 16 ± 2 mm and ejection fraction (LVEF) was 58% ± 8%. Results: The operative mortality was 11%. An ejection fraction less than 55% (p = 0.03), an aortic clamping time exceeding 90 minutes (p = 0.04), and bicuspid aortic stenosis (p = 0.03) were the mortality predictors. Survivors were followed for an average period of 24 ± 3 months, a total of 227 months. All were in NYHA class I and free from reoperation or valve-related events as of their last follow-up. The average peak trans aortic systolic gradiyent was 9 ± 4 mmHg, LVESD regressed to 37 ± 6 mm (p = 0.04), LVEDD to 56 ± 4 mm (p = 0.04), and IVST to 10 ± 3 mm (p = 0.02); LVEF was increased to 60% ± 12% (p = 0.05) at the first postoperative year. Kaplan-Meier survival estimate was 88% ± 8% at 2 years, including operative mortality. Conclusions: These data establish that the stentless porcine aortic root replacement provides a reasonable surgical option for ascending aortic aneurysms necessitating aortic valve replacement. It may be the treatment of choice in the elderly, in mycotic aneurysms and where anticoagulation is not desirable, hence, should be included in the cardiovascular surgeon's armamentarium. However, their durability must be evaluated with long-term studies.

Özet

Amaç: Aortik kapak replasmanı gerektiren çıkan aort anevrizmalarının tedavisinde Freestyle® stentsiz domuz biyoprotezinin yeri, erken ve orta dönem sonuçları yönünden değerlendirilmiştir. Materyal ve Metod: Ardışık onsekiz hastaya (13 erkek / 5 kadın; ortalama yaş 52 ± 14) implantasyon yapıldı. Hastaların fonksiyonel kapasitelerinin yedisi NYHA class II, yedisi class III ve dördü de class IV idi. Ortalama çıkan aort çapı 61 ± 7 mm (50-80) olup tüm hastalarda önemli aort yetmezliği mevcuttu. Ortalama sol ventrikül sistol sonu çapı (LVSSÇ) 44 ± 14 mm, diyastol sonu çapı (LVDSÇ) 60 ± 14 mm, septal kalınlık (IVSK) 16 ± 2 mm ve ejeksiyon fraksiyonu (LVEF) %58 ± 8 idi. Bulgular: Mortalite %11 olup, mortalite prediktörleri olarak 90 dakikayı aşan aortik klempleme süresi (p = 0.04), %55'in altında ejeksiyon fraksiyonu (p = 0.03) ve biküspid aort kapak mevcudiyeti (p = 0.03) saptandı. Postoperatif takip süresi toplam 227 ay (ortalama 24 ± 3 ay) idi. Hastalar son kontrolleri itibariyle NYHA class I fonksiyonel kapasitede olup hiçbir hastada reoperasyon gerekmemiş olup kapağa bağlı komplikasyon gelişmedi. Ameliyattan bir yıl sonra ortalama maksimum sistolik aort gradiyenti 9 ± 4 mmHg olarak ölçülmüş, LVSSÇ 37 ± 6 mm'ye (p = 0.04), LVEDV 56 ± 4 mm'ye (p = 0.04) ve IVSK 10 ± 3 mm'ye (p = 0.02) geriledi. Ortalama ejeksiyon fraksiyonu ise %60 ± 12'ye (p = 0.05) yükseldi. Hastane mortalitesi dahil olmak üzere, 2 yıllık Kaplan-Meier yaşam oranı %88 ± 8 olarak bulundu. Sonuç: Bu sonuçlara göre stentsiz domuz aort kökü interpozisyonunun, aort kapak değişimini de gerektiren aort anevrizmalarında uygun bir cerrahi tedavi seçeneği olduğu düşünülmüştür. Özellikle yaşlı hastalarda, mikotik anevrizmalarda ve antikoagülan tedavinin istenmediği hallerde sağlayacağı avantajlar nedeniyle cerrahi envanterde tutulması gereken bir yaklaşımdır. Bununla birlikte, dayanıklılığının değerlendirilmesi için uzun vadeli çalışmalara ihtiyaç vardır.

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Cite This Article

VURAL, M. K., TAŞDEMİR, O., KÜÇÜKER, Ş., ŞENER, E. (2022). Stentless porcine root replacement for ascending aortic aneurysm repair. Türk Göğüs Kalp Damar Cerrahisi Dergisi, Cilt: 9 - Sayı: 2, 84–87. https://ajindex.com/articles/425519

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References (1)

  1. David TE. Aortic valve replacement with stentless porcine bioprostheses. J Card Surg 1998;13:344-51. 2.Cartier PC, Dumesnil JG, Métras J, et al. Clinical and hemodynamic performance of the Freestyle aortic root bioprosthesis. Ann Thorac Surg 1999;67:345-9. 3.Kon ND, Cordell AR, Adair SM, Dobbins JE, Kitzman DW. Aortic root replacement with the freestyle stentless porcine aortic root bioprosthesis. Ann Thorac Surg 1999;67:1609-15. 4.Westaby S, Jin XY, Katsumata T, Arifi A, Braidley P. Valve replacement with a stentless bioprosthesis: Versatility of the porcine aortic root. J Thorac Cardiovasc Surg 1998;116:477-84. 5.Jaffe WM, Coverdale HA, Roche AH, Whitlock RM, Neutze JM, Barratt Boyes BG. Rest and exercise hemodynamics of 20 to 23 mm allograft, Medtronic Intact (porcine), and St. Jude Medical valves in the aortic position. J Thorac Cardiovasc Surg 1990;100:167-74. 6.Barratt Boyes BG, Christie GW. What is the best bioprosthetic operation for the small aortic root? Allograft, autograft, porcine, pericardial? Stented or unstented? J Card Surg 1994;9(Suppl):158-64. 7.Gross C, Harringer W, Mair R, et al. Aortic valve replacement: Is the stentless xenograft an alternative to the homograft? Early results of a randomized study. Ann Thorac Surg 1995;60(Suppl):S418-21. 8.Jin XY, Westaby S, Gibson DG, Pillai R, Taggart DP. Left ventricular remodelling and improvement in Freestyle stentless valve haemodynamics. Eur J Cardiothorac Surg 1997;12:63-9. 9.David TE, Feindel CM, Bos J, Sun Z, Scully HE, Rakowski H. Aortic valve replacement with a stentless porcine aortic valve. A six-year experience. J Thorac Cardiovasc Surg 1994;108:1030-6. 10.Dumesnil JG, Yoganathan AP. Valve prosthesis hemodynamics and the problem of high transprosthetic pressure gradiyents. Eur J Cardiothorac Surg 1992;6 (Suppl 1):S34-7. 11.Sintek CF, Fletcher AD, Khonsari S. Stentless porcine aortic root: Valve of choice for the elderly patient with small aortic root? J Thorac Cardiovasc Surg 1995;109:871-6. 12.Göksel S, Göl K, ‹þcan Z, Yıldız Ü, Özatik MA, Mavitaþ B, Taþdemir O. Medtronic Freestyle stentsiz biyoprotezlerle yapýlan aort kapak replasmanlarýnýn erken ve orta dönem sonuçlarý. Türk Göðüs Kalp Damar Cer Derg 2000;8:658-62. 13.Yıldırım T, Güler M, Kirali K, ve ark. Aort kökü cerrahisinde stentsiz biyoprotez kullanýmý: Orta dönem sonuçlarý. Türk Kardiyol Dern Arþ 2000;28:630-4