Bicarbon valve - European multicenter clinical evaluation

Borman, Joseph B.; Brands, W.; Camilleri, Lionel; Cotrufo, Maurizio; Daenen, Willem; Gandjbakhch, I; Infantes, Carlos; Khayat, André Salim; Laborde, F; Pellegrini, Alessandro; Piwnica, A; Reichart, B.; Sharony, Ram; Walesby, R.K.; Warembourg, H

doi:10.1016/s1010-7940(98)00074-8

Cited by 27 publications

(29 citation statements)

References 20 publications

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“…In our study, paravalvular leak played less important role in postoperative valve dysfunctions before (0.2% vs. 0.1%) and after (0% vs. 0.3%) propensity matching respectively. Borman et al, Christiansen et al reported a range of incidence of paravalvular leakage from 0% to 4.4 % (Borman et al, 1998;Christiansen et al, 1999).…”

Section: Respiratory Complicationsmentioning

confidence: 99%

015 * Propensity Score Analysis of Outcomes Following Minimally Invasive Versus Conventional Aortic Valve Replacement

Shehada

Voß

Elhmidi

et al. 2014

Interactive CardioVascular and Thoracic Surgery

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Section: Respiratory Complicationsmentioning

confidence: 99%

015 * Propensity Score Analysis of Outcomes Following Minimally Invasive Versus Conventional Aortic Valve Replacement

Shehada

Voß

Elhmidi

et al. 2014

Interactive CardioVascular and Thoracic Surgery

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“…Le taux de CTE très variable dans la littéra-ture [4][5][10][11][12] est probablement expliqué en partie par la différence d'âge moyen des groupes étudiés. Plusieurs études [4,5,7,8] ont mis en évidence que le type de PV n'influence pas significativement le nombre de CTE ce qui est le cas dans notre collectif.…”

Section: Complications Thrombo-emboliquesunclassified

“…Plusieurs études [4,5,7,8] ont mis en évidence que le type de PV n'influence pas significativement le nombre de CTE ce qui est le cas dans notre collectif. Il existe dans notre étude une tendance non significative aux CTE plus fréquente en pré-sence d'une PV en position aortique et les ré-sultats de diverses études sont contradictoires [10,11,15,16]. Cette absence d'influence clairement établie de la localisation et du type de la PV s'explique par le fait que les CTE ne sont probablement que très rarement liées directement à la présence d'une PV mais plutôt en relation avec les comorbidités associées à la maladie valvulaire (âge, hypertension artérielle, fibrillation auriculaire, athéromatose aortique etc.).…”

Section: Complications Thrombo-emboliquesunclassified

“…Le nombre d'endocardites bactériennes dans notre collectif correspond à celui rapporté dans la littérature [4,5,10,11,13]. Contrairement à la littérature [4,[6][7][8]16] qui révèle que la présence d'une PM ou d'une PB n'influence pas l'incidence d'endocardite bactérienne, les 6 endocardites bactériennes objectivées dans notre population se sont développées chez des patients avec PM.…”

Section: Endocardite Bactérienneunclassified

“…Le nombre de thrombose de la PV dans notre collectif correspond au taux rapporté dans la littérature [4,10]. Nos résultats sont identiques à ceux de Khan et coll [4] et à ceux de l'étude VART [7] qui ne montrent aucune influence du type de PV sur l'incidence des thromboses de PV.…”

Section: Thrombose De La Valve Prothétiqueunclassified

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Evolution à moyen terme et rôle de l'échocardiographie après remplacement valvulaire

Zaza¹,

Jaussi²,

Crittin³

et al. 2007

Schweiz Ärzteztg

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SummaryAims: The aim of the study was to evaluate the rate of occurrence of complications associated with prosthetic valves (PV) in ambulatory practice and to further evaluate the usefulness of echocardiography in the diagnosis and follow-up of these complications. Method: The study included 226 patients with a mean age of 57.7 ± 14.7 years in whom 253 PV (209 mechanical and 44 biological) were implanted. Immediate post-operative echocardiography was performed followed by annual echographic control studies. Results: Mean follow-up was 6.8 ± 3.8 years, corresponding to 1526 patient years. Complication-free patients numbered 72.7 ± 3.5% in the presence of mechanical prosthetic valves (MV) and 68.6 ± 8.1% in the presence of biological valves (BV) (p = 0.55). With respect to positions, complication-free patients numbered 68.3 ± 4.0%, 85.3 ± 4.8% and 51.9 ± 15% with PV in the aortic, mitral and mitro-aortic positions respectively (p = 0.54). The haemorrhagic and endocarditic risk was most important in the presence of a MV. All cases of PV degeneration occurred in patients with a BV in the mitral position. There was a tendency towards an increased incidence of paravalvalvular leaks and re-interventions in the presence of BV and a tendency towards an increased incidence of thrombo-embolic complications with PV in the aortic position. A PV linked complication was detected on average every 24.4 echocardiographs. Conclusion: The incidence of PV linked complications is low with a majority of patients free of any complications following valve replacement. The type and position of the PV only appears to influence the incidence of haemorrhages, degenerescence, re-intervention and endocarditis. The usefulness of routine echocardiographic follow-up therefore seems limited. An echocardiographic follow-up is, however, justified in certain settings, namely in the presence of para-valvular leaks, increased trans-valvular gradients, un- 237Travail original Kardiovaskuläre Medizin 2007;10: Nr 7-8 liées à la présence d'une PV est faible et la majorité des patients ne présente aucune complication suite au remplacement valvulaire. Le type et la localisation de la PV n'influence que l'incidence des hémorragies, des dégénéres-cences, des ré-interventions et des endocardites. L'apport d'un suivi échocardiographique de routine est faible. Un suivi échocardiogra-phique est cependant justifié en présence d'une fuite paravalvulaire, d'un gradient transvalvulaire élevé, d'une évolution clinique défavorable ou d'une PB âgée de plusieurs années.

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Multigram Solution‐Phase Synthesis of Three Diastereomeric Tripeptidic Second‐Generation Dendrons Based on (2S,4S)‐, (2S,4R)‐, and (2R,4S)‐4‐Aminoprolines

Zhang

Schlüter

2007

Chemistry An Asian Journal

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Three diastereomeric second-generation (G2) dendrons were prepared by using (2S,4S)-, (2S,4R)-, and (2R,4S)-4-aminoprolines on the multigram scale with highly optimized and fully reproducible solution-phase methods. The peripheral 4-aminoproline branching units of all the dendrons have the 2S,4S configuration throughout, whereas those units at the focal point have the 2S,4S, 2S,4R, and 2R,4S configurations. These latter configurations led to the dendrons being named (2S,4S)-1, (2S,4R)-1, and (2R,4S)-1, respectively. The 4-aminoproline derivatives used in this study are new, although many closely related compounds exist. Their syntheses were optimized. The dendron assembly involved amide coupling, the efficiency of which was also optimized by employing the following well-known reagents: EDC/HOBt, DCC/HOSu, TBTA/HOBt, TBTU/HOBt, BOP/HOBt, pentafluorophenol, and PyBOP/HOBt. It was found that the use of PyBOP is by far the best for dendrons (2S,4S)-1 and (2R,4S)-1, and pentafluorophenol active ester is best for (2S,4R)-1. Because of their multigram scale, all couplings were done in solution instead of by solid-phase procedures. Purifications were, nevertheless, easy. The optical purities of the key intermediates as well as the three G2 dendrons were analyzed by chiral HPLC analysis. These novel, diastereomeric second-generation dendrons have a rather compact and conformationally highly rigid structure that makes them interesting candidates for applications, for example, in the field of dendronized polymers and in organocatalysis.

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Bicarbon valve - European multicenter clinical evaluation

Abstract: The Bicarbon mechanical prosthesis is well designed, durable, has good hemodynamic features and an acceptably low incidence of complications.

Cited by 27 publications

References 20 publications

015 * Propensity Score Analysis of Outcomes Following Minimally Invasive Versus Conventional Aortic Valve Replacement

015 * Propensity Score Analysis of Outcomes Following Minimally Invasive Versus Conventional Aortic Valve Replacement

Evolution à moyen terme et rôle de l'échocardiographie après remplacement valvulaire

Multigram Solution‐Phase Synthesis of Three Diastereomeric Tripeptidic Second‐Generation Dendrons Based on (2S,4S)‐, (2S,4R)‐, and (2R,4S)‐4‐Aminoprolines

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