The Sorin Pericardial Bioprosthesis: The Stentless Aortic Valve with Excellent Hemodynamic Performance

Swiss Surgery ◽  
2003 ◽  
Vol 9 (5) ◽  
pp. 247-252 ◽  
Author(s):  
Gegouskov ◽  
Eckstein ◽  
Kipfer ◽  
Berdat ◽  
Immer ◽  
...  

Fragestellung: Die Sorin PericarbonTM Freedom Stentless Aortenklappe verfügt über eine sehr gute hämodynamische Funktion und eine hohe Widerstandsfähigkeit. In dieser Studie stellen wir die früh- und mittelfristigen Resultate mit dieser Klappenprothese vor. Methodik: 31 konsekutive Patienten (16 Frauen und 15 Männer) wurden nach Implantation einer Sorin PericarbonTM Freedom Stentless Aortenklappe untersucht. Das mittlere Lebensalter betrug 64 +/- 17 Jahre. Präoperativ litten fünf Patienten an einer isolierten Aortenklappenstenose, drei Patienten an einer isolierten Aortenklappeninsuffizienz, ein Patient wies ein kombiniertes Aortenvitium auf. Drei Patienten hatten zusätzlich eine Mitralklappeninsuffizienz, 14 Patienten eine koronare Herzkrankheit und ein Patient eine kongenitale Aortenisthmusstenose. Bei drei Patienten bestand eine akute Aortenklappenendokarditis. 18 Patienten wurden als Hoch-Risiko-Patienten (EuroSCORE 9 +/- 2) klassifiziert. Die mittlere linksventrikuläre Auswurfsfraktion betrug 52.5 +/- 15.0%. Ergebnisse: Alle implantierten Klappenprothesen wurden, bezogen auf die intraoperative Anulusausmessung, um 2mm grösser gewählt. 16 Patienten erhielten isolierte Klappenersatzoperationen. Als Zusatzeingriffe wurden drei Mitralklappenrekonstruktionen, 12 aorto-koronare Bypass-Operationen und eine Resektion einer Aortenisthmusstenose in Kombination mit einem VSD-Verschluss durchgeführt. Drei Eingriffe waren Re-Operationen. Die postoperative Früh-Mortalität war 6.4% (zwei Hoch-Risiko-Patienten). Beide Todesfälle waren nicht klappenbedingt. Vier Patienten entwickelten postoperativ ein Low-Output-Syndrom und erhielten eine intra-aortale Ballon-Pumpe. Die sechs Monate postoperativ durchgeführte Echokardiographie erbrachte tiefe transvalvuläre Mean- und Peak-Gradienten (9.6 +/- 4.4 bzw. 20.6 +/- 5.9mmHg) sowie eine signifikante Regression der linksventrikulären Hypertrophie(linksventrikulärer Massenindex 126.5 +/- 27.3 vs. 189.6 +/- 45.3g/m2, p = 0.0313) und eine Verbesserung der systolischen Auswurfsfraktion (58 +/- 9.8 vs. 52.5 +/- 15.0%, p = 0.9749). Schlussfolgerungen: Die Sorin PericarbonTM Freedom Stentless Aortenklappe zeigte eine hervorragende hemodynamische Funktion, die nach sechs Monaten durch tiefe transvalvulären Gradienten, Regression der linksventrikulären Hypertrophie sowie Anstieg der systolischen Auswurfsfraktion charakterisiert ist. Aussagen bezüglich Lebensdauer und Abnützung des biologischen Gewebes können erst nach Durchführung von Langzeit-Untersuchungen erhoben werden.

2021 ◽  
Author(s):  
Tohru Takaseya ◽  
Atsunobu Oryoji ◽  
Kazuyoshi Takagi ◽  
Tomofumi Fukuda ◽  
Koichi Arinaga ◽  
...  

AbstractAortic stenosis (AS) is the most common valve disorder in advanced age. Previous reports have shown that low-flow status of the left ventricle is an independent predictor of cardiovascular mortality after surgery. The Trifecta bioprosthesis has recently shown favorable hemodynamic performance. This study aimed to evaluate the effect of the Trifecta bioprosthesis, which has a large effective orifice area, in patients with low-flow severe AS who have a poor prognosis. We retrospectively evaluated 94 consecutive patients with severe AS who underwent aortic valve replacement (AVR). Patients were divided into two groups according to the stroke volume index (SVI): low-flow (LF) group (SVI < 35 ml/m2, n = 22) and normal-flow (NF) group (SVI ≥ 35 ml/m2, n = 72). Patients’ characteristics and early and mid-term results were compared between the two groups. There were no differences in patients’ characteristics, except for systolic blood pressure (LF:NF = 120:138 mmHg, p < 0.01) and the rate of atrial fibrillation between the groups. A preoperative echocardiogram showed that the pressure gradient was higher in the NF group than in the LF group, but aortic valve area was similar. The Trifecta bioprosthesis size was similar in both groups. The operative outcomes were not different between the groups. Severe patient–prosthesis mismatch (PPM) (< 0.65 cm2/m2) was not observed in either of the groups. There were no significant differences in mid-term results between the two groups. The favorable hemodynamic performance of the Trifecta bioprosthesis appears to have the similar outcomes in the LF and NF groups. AVR with the Trifecta bioprosthesis should be considered for avoidance of PPM, particularly in AS patients with LV dysfunction.


Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Koichi Maeda ◽  
Toru Kuratani ◽  
Kei Torikai ◽  
Isamu Mizote ◽  
Yasuhiro Ichibori ◽  
...  

Introduction: Surgical aortic valve replacement (SAVR) in a small aortic root is still challenging with regard to the surgical technique and prosthesis size selection, which often causes patient-prosthesis mismatch (PPM). On the other hand, because a prosthetic valve of transcatheter aortic valve replacement (TAVR) is tightly implanted inside a native valve, larger effective orifice area (EOA) may be gained. The aim of this study is to prove that hemodynamic performance after TAVR is superior to that after SAVR. Methods: 160 patients, who underwent SAVR (n=36; age 75.1±5.6 years) and TAVR (n=124; age 82.4±6.8 years) for aortic valve stenosis, were enrolled. Preoperative ECG-gated multi-slice CT (MSCT) and echocardiography immediately before a discharge were performed in all patients. PPM was defined as the effective orifice area index ≤0.85cm2/m2 and we compared and examined hemodynamic performance after TAVR and SAVR. Results: Although the mean body size was significantly smaller (p<.05) in TAVR than that in SAVR (1.44±0.15 vs 1.51±0.20 m2), there were no significant differences in the diameters of annulus (23.2±1.6 vs 23.3±2.8 mm), valsalva sinus (29.8±2.6 vs 29.9±4.4 mm), and ST junction (25.2±2.8 vs 24.8±3.5 mm) on preoperative MSCT findings. Postoperative echocardiography revealed significantly less Vmax (2.2±0.4 vs 2.5±0.5 m/s, p<.0001), less mean pressure gradient (10.1±3.6 vs 14.5±5.0 mmHg, p<.0001), and larger EOA (1.62±0.29 vs 1.45±0.36 cm2, p<.005) in TAVR compared to SAVR, respectively. Consequently, PPM was more frequently in SAVR compared to TAVR (33.3 vs 8.9%; p<.0007). In multivariate analysis in SAVR identified small ST junction with only predictive factor of PPM (odds ratio [OR], 2.08; 95% CI, 1.23-4.36; p<.005; area under the receiver-operating characteristic curve [AUC], 0.84). On the other hand, regarding TAVR, large BSA was only predictive factor of PPM (p<.05). Conclusions: The hemodynamic performance of transcatheter prosthetic valve is superior to that of surgical prosthetic valve in a patient with small aortic root, in particular, small ST junction. TAVR should be considered in patients with anticipated PPM if the surgical risk is similar to TAVR.


Author(s):  
Guglielmo Stefanelli ◽  
Fabrizio Pirro ◽  
Vincenzo Smorto ◽  
Alessandro Bellisario ◽  
Emilio Chiurlia ◽  
...  

Objective Stentless aortic valves have shown superior hemodynamic performance and faster left ventricular mass regression compared to stented bioprostheses. Yet, controversies exist concerning the durability of stentless valves. This case-matched study compared short- and long-term clinical outcomes of stentless LivaNova-Sorin Pericarbon Freedom™ (SPF) and stented Carpentier-Edwards Perimount (CEP) aortic prostheses. Methods From 2003 through 2006, 134 consecutive patients received aortic valve replacement with SPF at our institution. This cohort was matched, according to 20 preoperative clinical parameters, with a control group of 390 patients who received CEP prosthesis during the same time. The resulting 55 + 55 matched patients were analyzed for perioperative results and long-term clinical outcomes. Results Early mortality was 0% for both groups. Lower transvalvular gradients were found in the SPF group (10.6 ± 2.9 versus 15.7 ± 3.1 mmHg, P < 0.001). Overall late mortality (mean follow-up: 10.03 years) was similar for both groups (50.1% versus 42.8%, P = 0.96). Freedom from structural valve degeneration (SVD) at 13 years was similar for both groups (SPF = 92.3%, CEP = 73.9%, P = 0.06). Freedom from aortic valve reinterventions did not differ (SPF = 92.3%, CEP = 93.5%, P = 0.55). Gradients at 13-year follow-up remained significantly lower in SPF group (10.0 ± 4.5 versus 16.2 ± 9.5 mmHg, P < 0.001). Incidence of acute bacterial endocarditis (ABE) and major adverse cardiovascular and cerebrovascular events (MACCE) was similar. Conclusions SPF and CEP demonstrated comparable long-term outcomes related to late mortality, SVD, aortic valve reinterventions, and incidence of ABE and MACCE. Superior hemodynamic performance of SPF over time can make this valve a suitable choice in patients with small aortic root and large body surface area.


1969 ◽  
Vol 30 (2) ◽  
Author(s):  
Ali Ümit Yener ◽  
Sedat Özcan ◽  
Ali Baran Budak ◽  
Serhat Bahadır Genç ◽  
Turgut Özkan ◽  
...  

2015 ◽  
Vol 80 (3) ◽  
Author(s):  
Giovanni Minardi ◽  
Amedeo Pergolini ◽  
Giordano Zampi ◽  
Giovanni Pulignano ◽  
Gaetano Pero ◽  
...  

Objective. Aim of this study was to compare the hemodynamic profiles of 2 aortic valve bioprostheses: the Carpentier Edwards Perimount Magna (CEPM) valve and the Trifecta valve. Methods. 100 patients who underwent AVR for severe symptomatic AS between September 2011 and October 2012 were analyzed by means of standard trans-thoracic Doppler-echocardiography. Results. Mean and peak gradients were significantly lower for the 21 mm Trifecta vs CEPM (11 ± 4 vs 15 ± 4 mmHg, and 20 ± 6 vs 26 ± 7 mmHg, respectively; all p &lt; 0.05) and the 23 mm Trifecta vs CEPM (8 ± 2 vs 14 ± 4 mmHg, and 17 ± 6 vs 25 ± 9 mmHg; all p &lt; 0.05). Effective orifice area tended to be slightly higher for the Trifecta valve. Conclusion. The new bioprosthetic valve Trifecta has an excellent hemodynamic profile, and lower trans-prosthesic gradients when compared to CEPM valve.


2015 ◽  
Vol 79 (5) ◽  
pp. 1044-1051 ◽  
Author(s):  
Yorihiko Matsumoto ◽  
Tomoyuki Fujita ◽  
Hiroki Hata ◽  
Yusuke Shimahara ◽  
Shunsuke Sato ◽  
...  

1997 ◽  
Vol 63 (2) ◽  
pp. 362-366 ◽  
Author(s):  
Monica L. McDonald, MD ◽  
Richard C. Daly, MD ◽  
Hartzell V. Schaff, MD ◽  
Charles J. Mullany, MB, MS ◽  
Fletcher A. Miller, MD ◽  
...  

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