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Caruso V, Bilkhu R, Young C, Roxburgh J, Bosco P, Lucchese G. Novel Techniques and Technologies for Surgical Aortic Valve Replacement: A Large Retrospective Cohort Analysis. J Clin Med 2024; 13:4126. [PMID: 39064166 PMCID: PMC11278247 DOI: 10.3390/jcm13144126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2024] [Revised: 07/10/2024] [Accepted: 07/12/2024] [Indexed: 07/28/2024] Open
Abstract
Background/Objectives: In an era of growing evidence for transaortic valve implantation (TAVI), our research topic was the evaluation of how surgical aortic valve replacements (SAVRs) are performing in terms of short- and long-term outcomes in different risk categories. Methods: This was a single centre, prospective, and observational cohort study of consecutive patients with aortic valve stenosis, undergoing isolated aortic valve replacement using a biological or mechanical prosthesis, Freestyle™ (Medtronic, Minneapolis, MN, USA) graft, homograft, or Ross procedure. The participant data were collected by review of an internal database. The primary endpoints were all-cause operative mortality (in hospital and at 30 days) and late mortality at the follow-up date. The secondary composite endpoint was the incidence of postoperative complications. Results: 1501 patients underwent SAVR; the mean age was 67 years (SD: 12.6). The in-hospital mortality was 1% (n = 16). At a median follow-up of 60 months, the survival rate was 98.7%. The main predictors for mortality were operative urgency and cardiogenic shock. The overall incidence of PPM was 2.3% (n = 34). Patients who underwent Ross procedure were younger (mean age: 20 years (SD: 1.7)), had a lower incidence of postoperative complications, and were all alive at follow-up. Conclusions: SAVR shows an excellent survival rate and a low rate of postoperative complications despite an increasing surgical risk. Recent advancements in technology, like sutureless/rapid deployment prostheses and minimally invasive techniques, are shown to have favourable effects on outcomes.
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Affiliation(s)
- Vincenzo Caruso
- Cardiovascular Department, St. Thomas’ Hospital, London SE1 7EH, UK; (R.B.); (C.Y.); (J.R.); (P.B.); (G.L.)
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Dib N, Ben Ali W, Ducruet T, Trudeau O, Bernier PL, Poirier N, Khairy P. The Ross Procedure in Children and Infants: A Systematic Review With Pooled Analyses. CJC PEDIATRIC AND CONGENITAL HEART DISEASE 2024; 3:117-124. [PMID: 39070957 PMCID: PMC11282879 DOI: 10.1016/j.cjcpc.2024.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 02/20/2024] [Indexed: 07/30/2024]
Abstract
Background The Ross procedure is a surgical option for congenital aortic stenosis that involves replacing the diseased aortic valve with a pulmonary autograft. Little is known about outcomes in children, particularly those younger than 1 year. Methods A systematic review with pooled analyses was conducted according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) criteria. Inferred individual patient data were extracted from life tables. The primary end points were early (≤30 days) and late (>30 days) mortality rates following the Ross procedure in children. Secondary end points were freedom from reintervention for the right ventricular outflow tract and pulmonary autograft. These end points were assessed in the overall population of children. Sensitivity analyses were performed in subgroups younger than 1 year of age (infants) and in noninfant children. Results A total of 25 studies on 2737 patients met inclusion criteria. The pooled early survival rate was 96.0% (95% confidence interval [CI]: 95.1%-96.8%) overall and 86.8% (95% CI: 82.1%-90.3%) among infants. Pooled overall 10-year survival, freedom from pulmonary autograft reintervention, and freedom from right ventricular outflow tract reintervention rates were 91.1%, 90.2%, and 79.7%, respectively. Corresponding pooled rates in infants were 79.3%, 87.1%, and 51.2%. Mortality was significantly higher among infants compared with noninfant children (hazard ratio: 3.38, 95% CI: 2.44-4.68; P < 0.001). In metaregression analyses, younger age was strongly associated with poorer survival and higher reintervention rates. Conclusions Modest survival and autograft reoperation rates were observed following the Ross procedure in children. Surgery in infancy was strongly associated with poorer survival and higher reintervention rates.
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Affiliation(s)
- Nabil Dib
- Department of Medicine, Montreal Heart Institute, Université de Montréal, Montreal, Québec, Canada
- Division of Cardiac Surgery, Department of Surgery, Sainte-Justine Hospital, Université de Montréal, Montreal, Québec, Canada
| | - Walid Ben Ali
- Department of Medicine, Montreal Heart Institute, Université de Montréal, Montreal, Québec, Canada
| | - Thierry Ducruet
- Unité de Recherche Clinique Appliquée, Sainte-Justine Hospital, Université de Montréal, Montreal, Québec, Canada
| | - Ofélie Trudeau
- Unité de Recherche Clinique Appliquée, Sainte-Justine Hospital, Université de Montréal, Montreal, Québec, Canada
| | - Pierre-Luc Bernier
- Division of Cardiac Surgery, Department of Surgery, Sainte-Justine Hospital, Université de Montréal, Montreal, Québec, Canada
| | - Nancy Poirier
- Division of Cardiac Surgery, Department of Surgery, Sainte-Justine Hospital, Université de Montréal, Montreal, Québec, Canada
| | - Paul Khairy
- Department of Medicine, Montreal Heart Institute, Université de Montréal, Montreal, Québec, Canada
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Maes L, Vervenne T, Van Hoof L, Jones EAV, Rega F, Famaey N. Computational modeling reveals inflammation-driven dilatation of the pulmonary autograft in aortic position. Biomech Model Mechanobiol 2023; 22:1555-1568. [PMID: 36764979 DOI: 10.1007/s10237-023-01694-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 01/17/2023] [Indexed: 02/12/2023]
Abstract
The pulmonary autograft in the Ross procedure, where the aortic valve is replaced by the patient's own pulmonary valve, is prone to failure due to dilatation. This is likely caused by tissue degradation and maladaptation, triggered by the higher experienced mechanical loads in aortic position. In order to further grasp the causes of dilatation, this study presents a model for tissue growth and remodeling of the pulmonary autograft, using the homogenized constrained mixture theory and equations for immuno- and mechano-mediated mass turnover. The model outcomes, compared to experimental data from an animal model of the pulmonary autograft in aortic position, show that inflammation likely plays an important role in the mass turnover of the tissue constituents and therefore in the autograft dilatation over time. We show a better match and prediction of long-term outcomes assuming immuno-mediated mass turnover, and show that there is no linear correlation between the stress-state of the material and mass production. Therefore, not only mechanobiological homeostatic adaption should be taken into account in the development of growth and remodeling models for arterial tissue in similar applications, but also inflammatory processes.
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Affiliation(s)
- Lauranne Maes
- Biomechanics Section, Mechanical Engineering Department, KU Leuven, Celestijnenlaan 300 box 2419, 3001, Leuven, Belgium.
| | - Thibault Vervenne
- Biomechanics Section, Mechanical Engineering Department, KU Leuven, Celestijnenlaan 300 box 2419, 3001, Leuven, Belgium
| | - Lucas Van Hoof
- Cardiac Surgery, Department of Cardiovascular Sciences, KU Leuven, UZ Herestraat 49 box 276, 3000, Leuven, Belgium
| | - Elizabeth A V Jones
- Centre for Molecular and Vascular Biology, KU Leuven, UZ Herestraat 49 box 911, 3000, Leuven, Belgium
| | - Filip Rega
- Cardiac Surgery, Department of Cardiovascular Sciences, KU Leuven, UZ Herestraat 49 box 276, 3000, Leuven, Belgium
| | - Nele Famaey
- Biomechanics Section, Mechanical Engineering Department, KU Leuven, Celestijnenlaan 300 box 2419, 3001, Leuven, Belgium
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4
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Dib N, Iriart X, Belaroussi Y, Albadi W, Tafer N, Thambo JB, Khairy P, Roubertie F. The Ross Operation in Young Patients: A 15-Year Experience Focused on Right Ventricle to Pulmonary Artery Conduit Outcomes. CJC PEDIATRIC AND CONGENITAL HEART DISEASE 2023; 2:86-92. [PMID: 37970525 PMCID: PMC10642144 DOI: 10.1016/j.cjcpc.2022.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 12/20/2022] [Indexed: 11/17/2023]
Abstract
Background Data on long-term outcomes of the Ross operation in children and young adult patients are limited. The best pulmonary valve substitute for the right ventricular outflow tract reconstruction remains uncertain. This study aimed to assess the outcomes of right ventricular outflow tract reconstruction in the Ross operation in young patients using various pulmonary valve substitutes at a single institution. In addition, a comparison of reintervention rates between patients younger than 18 years and those older than 18 years was performed. Methods The study assessed all patients (N = 110) who underwent the Ross operation at the University Hospital of Bordeaux, France, between 2004 and 2020. Results The median follow-up time was 4.2 years, and the median age at operation was 15.9 years. There was no operative mortality and 1 late noncardiac death (0.8%). The overall survival rate at 10 years was 99.2%. The need for right ventricular outflow tract reoperation was lower with the pulmonary homograft compared with the Contegra conduit and Freestyle bioprosthesis: 94.3%, 93.8%, and 80% at 5 years, respectively, and 94.3%, 72.3%, and 34.3% at 10 years, respectively (P = 0.011). The probability of reintervention was not significantly different at 10 years among children vs adults (P = 0.22). Conclusions The Ross procedure in children and young adults was associated with a lower requirement for right ventricular outflow tract reoperation when pulmonary homografts were used instead of xenografts.
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Affiliation(s)
- Nabil Dib
- Department of Congenital Cardiac surgery, Bordeaux Heart University Hospital, University of Bordeaux II, Bordeaux, France
| | - Xavier Iriart
- Department of Congenital Cardiology, Bordeaux Heart University Hospital, University of Bordeaux II, Bordeaux, France
| | - Yaniss Belaroussi
- Department of Congenital Cardiac surgery, Bordeaux Heart University Hospital, University of Bordeaux II, Bordeaux, France
| | - Waleed Albadi
- Department of Congenital Cardiac surgery, Bordeaux Heart University Hospital, University of Bordeaux II, Bordeaux, France
| | - Nadir Tafer
- Department of Congenital Cardiac Anesthesiology, Bordeaux Heart University Hospital, University of Bordeaux II, Bordeaux, France
| | - Jean-Benoit Thambo
- Department of Congenital Cardiology, Bordeaux Heart University Hospital, University of Bordeaux II, Bordeaux, France
| | - Paul Khairy
- Montreal Heart Institute, Université de Montréal, Montréal, Québec, Canada
| | - François Roubertie
- Department of Congenital Cardiac surgery, Bordeaux Heart University Hospital, University of Bordeaux II, Bordeaux, France
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5
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Butany J, Schoen FJ. Cardiac valve replacement and related interventions. Cardiovasc Pathol 2022. [DOI: 10.1016/b978-0-12-822224-9.00010-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Nappi F, Spadaccio C, Acar C, El-Hamamsy I. Lights and Shadows on the Ross Procedure: Biological Solutions for Biological Problems. Semin Thorac Cardiovasc Surg 2020; 32:815-822. [PMID: 32439545 DOI: 10.1053/j.semtcvs.2020.04.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Accepted: 04/20/2020] [Indexed: 11/11/2022]
Abstract
The Ross procedure represents a valid option for aortic valve replacement in young adults and was repeatedly shown to restore survival to that of the age- and sex-matched general population. However, its major drawback relies in the risk of pulmonary autograft (PA) dilation, negative histological remodeling and need for reoperation. Several techniques and materials to reinforce the PA have been proposed. They mainly include Dacron, personalized external aortic root support with a polyethylene terephthalate mesh system, autologous aortic tissue and bioresorbable materials. Synthetic materials, despite widely used in cardiac surgery, have significant biocompatibility issues with the PA and their interaction with this living structure translates into negative remodeling phenomena and disadvantageous biomechanical behaviors. Conversely, biomaterials with tailored degradable profiles might be able to reinforce while integrating with the PA and enhance its remodeling capabilities. The recent advancement in this field are here discussed.
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Affiliation(s)
- Francesco Nappi
- Department of Cardiac Surgery Center, Cardiologique du Nord de Saint-Denis, Paris, France.
| | - Cristiano Spadaccio
- Department of Cardiothoracic Surgery, Golden Jubilee National Hospital, Glasgow, United Kingdom; Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Christophe Acar
- Department of Cardiovascular Surgery, Hopital de la Salpetriere, Paris, France
| | - Ismail El-Hamamsy
- Department of Cardiac Surgery, Montreal Heart Institute, Montreal, Canada
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Chauvette V, Chamberland MÈ, El-Hamamsy I. A review of pulmonary autograft external support in the Ross procedure. Expert Rev Med Devices 2019; 16:981-988. [PMID: 31663385 DOI: 10.1080/17434440.2019.1685380] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Introduction: Although the Ross procedure offers several advantages over standard prosthetic AVR, its use remains limited. The risk of pulmonary autograft dilatation requiring reintervention remains one of the main concerns. Consequently, multiple techniques have been developed in attempt to mitigate this complication.Areas covered: This article reviews the incidence of pulmonary autograft dilatation, its risk factors and pathophysiology. The techniques of external pulmonary autograft support are discussed along with their respective advantages and limitations. Finally, future areas of research and developments are examined.Expert opinion: The risk of autograft dilatation is mainly prevalent in patients with aortic regurgitation and a dilated aortic annulus. In these selected patients, an external support may prevent dilatation of the autograft. However, any permanent support potentially restricts autograft root motion, mitigating some of the advantages associated with the Ross procedure. A bioresorbable matrix that could support the root during its initial adaptative phase could alleviate this problem. In our opinion, aggressive blood pressure control during the first postoperative year along with annular and sino-tubular junction support in selected patients provides optimal stability of autograft root dimensions while preserving root dynamics. Serial imaging and clinical follow-up are necessary to define the role of these various strategies.
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Affiliation(s)
- Vincent Chauvette
- Department of Cardiac Surgery, Montreal Heart Institute, Montreal, Canada
| | | | - Ismail El-Hamamsy
- Department of Cardiac Surgery, Montreal Heart Institute, Montreal, Canada
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Mazine A, Rocha RV, El-Hamamsy I, Ouzounian M, Yanagawa B, Bhatt DL, Verma S, Friedrich JO. Ross Procedure vs Mechanical Aortic Valve Replacement in Adults: A Systematic Review and Meta-analysis. JAMA Cardiol 2019; 3:978-987. [PMID: 30326489 DOI: 10.1001/jamacardio.2018.2946] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Importance The ideal aortic valve substitute in young and middle-aged adults remains unknown. Objective To compare long-term outcomes between the Ross procedure and mechanical aortic valve replacement in adults. Data Sources The Ovid versions of MEDLINE and EMBASE classic (January 1, 1967, to April 26, 2018; search performed on April 27, 2018) were screened for relevant studies using the following text word search in the title or abstract: ("Ross" OR "autograft") AND ("aortic" OR "mechanical"). Study Selection All randomized clinical trials and observational studies comparing the Ross procedure to the use of mechanical prostheses in adults undergoing aortic valve replacement were included. Studies were included if they reported any of the prespecified primary or secondary outcomes. Studies were excluded if no clinical outcomes were reported or if data were published only as an abstract. Citations were screened in duplicate by 2 of the authors, and disagreements regarding inclusion were reconciled via consensus. Data Extraction and Synthesis This meta-analysis was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses and Meta-analysis of Observational Studies in Epidemiology guidelines. Data were independently abstracted by 3 reviewers and pooled using a random-effects model. Main Outcomes and Measures The prespecified primary outcome was all-cause mortality. Results The search identified 2919 reports, of which 18 studies (3516 patients) met inclusion criteria, including 1 randomized clinical trial and 17 observational studies, with a median average follow-up of 5.8 (interquartile range, 3.4-9.2) years. Analysis of the primary outcome showed a 46% lower all-cause mortality in patients undergoing the Ross procedure compared with mechanical aortic valve replacement (incidence rate ratio [IRR], 0.54; 95% CI, 0.35-0.82; P = .004; I2 = 28%). The Ross procedure was also associated with lower rates of stroke (IRR, 0.26; 95% CI, 0.09-0.80; P = .02; I2 = 8%) and major bleeding (IRR, 0.17; 95% CI, 0.07-0.40; P < .001; I2 = 0%) but higher rates of reintervention (IRR, 1.76; 95% CI, 1.16-2.65; P = .007; I2 = 0%). Conclusions and Relevance Data from primarily observational studies suggest that the Ross procedure is associated with lower all-cause mortality compared with mechanical aortic valve replacement. These findings highlight the need for a large, prospective randomized clinical trial comparing long-term outcomes between these 2 interventions.
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Affiliation(s)
- Amine Mazine
- Division of Cardiac Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Rodolfo V Rocha
- Division of Cardiac Surgery, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
| | - Ismail El-Hamamsy
- Department of Cardiac Surgery, Montreal Heart Institute, Montreal, Quebec, Canada
| | - Maral Ouzounian
- Department of Cardiac Surgery, Toronto General Hospital, Toronto, Ontario, Canada
| | - Bobby Yanagawa
- Department of Cardiac Surgery, St Michael's Hospital, Toronto, Ontario, Canada
| | - Deepak L Bhatt
- Brigham and Women's Hospital Heart & Vascular Center, Harvard Medical School, Boston, Massachusetts
| | - Subodh Verma
- Department of Cardiac Surgery, St Michael's Hospital, Toronto, Ontario, Canada
| | - Jan O Friedrich
- Department of Critical Care Medicine, St Michael's Hospital, Toronto, Ontario, Canada
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Bouhout I, Ghoneim A, Tousch M, Stevens LM, Semplonius T, Tarabzoni M, Poirier N, Cartier R, Demers P, Guo L, Chu MWA, El-Hamamsy I. Impact of a tailored surgical approach on autograft root dimensions in patients undergoing the Ross procedure for aortic regurgitation†. Eur J Cardiothorac Surg 2019; 56:959-967. [DOI: 10.1093/ejcts/ezz105] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 03/06/2019] [Accepted: 03/07/2019] [Indexed: 11/14/2022] Open
Abstract
Abstract
OBJECTIVES
The Ross procedure in patients with aortic regurgitation (AR) has been associated with increased autograft dilatation and late reintervention. The aim of this study was to evaluate the impact of a tailored approach aimed at mitigating that risk on early changes in autograft root dimensions following the Ross procedure in patients with AR.
METHODS
From 2011 to 2018, 241 consecutive patients underwent a Ross procedure with >1 year of follow-up [46 (7) years]. Aortic root dimensions were prospectively measured on serial echocardiograms. Patients with aortic stenosis group (n = 171; 71%) were compared to those with AR or mixed aortic disease (AR group) (n = 70; 29%). Mean length of follow-up was 29 ± 11 months (100% complete). Changes in aortic dimensions were analysed using mixed-effect models.
RESULTS
At 4 years, mean indexed diameters of the annulus, sinuses of Valsalva and the sinotubular junction in the AR group were 12.3 (0.2) mm/m2, 20.0 (0.4) mm/m2 and 16.3 (0.9) mm/m2, respectively, vs 11.9 (0.2), 18.4 (0.3) and 15.5 (0.5) in the aortic stenosis group. Overall, there were no significant differences in the rates of autograft annulus, sinuses of Valsalva and sinotubular junction dimension changes between the aortic stenosis and AR groups up to 4 years after surgery (P = 0.55, P = 0.12, P = 0.59 and P = 0.48, respectively).
CONCLUSIONS
Use of a tailored surgical approach, combined with a strict blood pressure control, appears to mitigate clinically significant early dilatation of the autograft root following a Ross procedure in patients with AR. Further follow-up is needed to determine if this will translate into a lower incidence of long-term reintervention.
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Affiliation(s)
- Ismail Bouhout
- Department of Cardiac Surgery, Montreal Heart Institute, Université de Montréal, Montreal, Canada
| | - Aly Ghoneim
- Department of Cardiac Surgery, Montreal Heart Institute, Université de Montréal, Montreal, Canada
| | - Michael Tousch
- Department of Cardiac Surgery, Montreal Heart Institute, Université de Montréal, Montreal, Canada
| | - Louis Mathieu Stevens
- Department of Cardiac Surgery, Centre Hospitalier de l'Université de Montréal, Montreal, Canada
| | - Trevor Semplonius
- Department of Cardiac Surgery, Montreal Heart Institute, Université de Montréal, Montreal, Canada
| | - Mohammed Tarabzoni
- Department of Cardiac Surgery, London Health Sciences Centre, University of Western Ontario, London, ON, Canada
| | - Nancy Poirier
- Department of Cardiac Surgery, Montreal Heart Institute, Université de Montréal, Montreal, Canada
| | - Raymond Cartier
- Department of Cardiac Surgery, Montreal Heart Institute, Université de Montréal, Montreal, Canada
| | - Philippe Demers
- Department of Cardiac Surgery, Montreal Heart Institute, Université de Montréal, Montreal, Canada
| | - Linrui Guo
- Department of Cardiac Surgery, London Health Sciences Centre, University of Western Ontario, London, ON, Canada
| | - Michael W A Chu
- Department of Cardiac Surgery, London Health Sciences Centre, University of Western Ontario, London, ON, Canada
| | - Ismail El-Hamamsy
- Department of Cardiac Surgery, Montreal Heart Institute, Université de Montréal, Montreal, Canada
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Bouhout I, El-Hamamsy I. The Prospective Randomized On-X Valve Anticoagulation Clinical Trial (PROACT): Lower is better, but is it good enough? Glob Cardiol Sci Pract 2019; 2019:2. [PMID: 31024944 PMCID: PMC6472691 DOI: 10.21542/gcsp.2019.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Due to their durability, mechanical prostheses are frequently used for aortic valve replacement (AVR) in young adults. However, these valves are thrombogenic and require lifelong anticoagulation. Over the last few decades, efforts have been made towards the lowering of INR targets in an effort to reduce bleeding events without influencing the thromboembolic risk. The Prospective Randomized On-X Valve Anticoagulation Clinical Trial (PROACT) was designed to compare standard versus low anticoagulation targets in high-risk patients undergoing mechanical AVR with the ON-X prosthesis.
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Affiliation(s)
- Ismail Bouhout
- Department of Cardiac Surgery, Montreal Heart Institute, Université de Montreal, Quebec, Canada
| | - Ismail El-Hamamsy
- Department of Cardiac Surgery, Montreal Heart Institute, Université de Montreal, Quebec, Canada
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Ibrahim M, Spelde AE, Carter TI, Patel PA, Desai N. The Ross Operation in the Adult: What, Why, and When? J Cardiothorac Vasc Anesth 2018. [DOI: 10.1053/j.jvca.2017.12.047] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Abstract
Techniques for repair of the aorta currently include open and endovascular methods, hybrid approaches, minimally-invasive techniques, and aortic branch vessel reimplantation or bypass. Collaboration among radiologists and vascular and cardiothoracic surgeons is essential. An awareness of the various surgical techniques, expected postoperative appearance, and potential complications is essential for radiologists. This review will cover the postoperative appearance of the thoracic aorta with a focus on the ascending aorta. The value of three-dimensional image evaluation will also be emphasized.
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Mookhoek A, Krishnan K, Chitsaz S, Kuang H, Ge L, Schoof PH, Bogers AJ, Takkenberg JJ, Tseng EE. Biomechanics of Failed Pulmonary Autografts Compared to Native Aortic Roots. Ann Thorac Surg 2017; 103:1482-1488. [DOI: 10.1016/j.athoracsur.2016.08.061] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Revised: 08/08/2016] [Accepted: 08/15/2016] [Indexed: 11/29/2022]
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14
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Bouhout I, Ghoneim A, Poirier N, Cartier R, Demers P, Perrault LP, El-Hamamsy I. Impact of the Learning Curve on Early Outcomes Following the Ross Procedure. Can J Cardiol 2017; 33:493-500. [DOI: 10.1016/j.cjca.2016.11.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 10/27/2016] [Accepted: 11/18/2016] [Indexed: 10/20/2022] Open
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Abstract
The Ross operation provides several advantages compared to other valve substitutes to manage aortic valve disease, such as growth potential, excellent hemodynamics, freedom from oral anticoagulation and hemolysis, and better durability. However, progressive dilatation of the pulmonary autografts after Ross operation reflects the inadequate remodeling of the native pulmonary root in the systemic circulation, which results in impaired adaptability to systemic pressure and risk of reoperation after the first decade. A recently published article showed that remodeling increased wall thickness and decreased stiffness in the failed specimens after Ross operation, and the increased compliance might play a key role in determining the progressive long-term autograft root dilatation. Late dilatation can be counteracted by an external barrier which prevents failure. Therefore, an inclusion cylinder technique with a native aorta or a synthetic external support, such as Dacron, might stabilize the autograft root and improve long-term outcomes. In this article, we offer a prospective about the importance of biomechanical features in future developments of the Ross operation. Pre-clinical and clinical evaluations of the biomechanical properties of these reinforced pulmonary autografts might shed new light on the current debate about the long-term fate of the pulmonary autograft after Ross procedure.
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Affiliation(s)
- Francesco Nappi
- Department of Cardiac Surgery, Centre Cardiologique du Nord de Saint-Denis, Paris, France
| | - Antonio Nenna
- Department of Cardiovascular Surgery, Università Campus Bio-Medico di Roma, Rome, Italy
| | - Cristiano Spadaccio
- Department of Cardiothoracic Surgery, Golden Jubilee National Hospital, Glasgow, UK
| | - Massimo Chello
- Department of Cardiovascular Surgery, Università Campus Bio-Medico di Roma, Rome, Italy
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Valdis M, DeRose G, Guo L, Chu MWA. Ross, Hybrid Arch, and Frozen Elephant Trunk Reconstruction for Late Complications of Bicuspid Aortic Valve and Aortopathy. Can J Cardiol 2016; 32:1576.e11-1576.e14. [PMID: 27884484 DOI: 10.1016/j.cjca.2016.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Revised: 07/02/2016] [Accepted: 07/11/2016] [Indexed: 10/21/2022] Open
Abstract
Young patients with bicuspid aortic valve disease and aortopathy remain a clinical challenge, with many requiring multiple corrective operations throughout their lifetimes. Innovative surgical approaches are often required to address complex aortic pathologic conditions but leave patients at risk for reintervention, lifelong anticoagulation, and suboptimal hemodynamics. We describe an active 44-year-old female triathlete with recurrent bicuspid aortic stenosis, a small aortic root, a hypoplastic aortic arch and complex distal arch, and a descending aortic aneurysm, who underwent a single-stage reconstruction with a combined Ross procedure, hybrid arch, and frozen elephant trunk reconstruction.
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Affiliation(s)
- Matthew Valdis
- Division of Cardiac Surgery, Department of Surgery, Western University, London Health Sciences Centre, London, Ontario, Canada
| | - Gaetano DeRose
- Division of Vascular Surgery, Department of Surgery, Western University, London Health Sciences Centre, London, Ontario, Canada
| | - Linrui Guo
- Division of Cardiac Surgery, Department of Surgery, Western University, London Health Sciences Centre, London, Ontario, Canada
| | - Michael W A Chu
- Division of Cardiac Surgery, Department of Surgery, Western University, London Health Sciences Centre, London, Ontario, Canada.
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Bouhout I, Noly PE, Ghoneim A, Stevens LM, Cartier R, Poirier N, Bouchard D, Demers P, El-Hamamsy I. Is the Ross procedure a riskier operation? Perioperative outcome comparison with mechanical aortic valve replacement in a propensity-matched cohort. Interact Cardiovasc Thorac Surg 2016; 24:41-47. [DOI: 10.1093/icvts/ivw325] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 08/23/2016] [Accepted: 08/29/2016] [Indexed: 12/22/2022] Open
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Mookhoek A, Krishnan K, Chitsaz S, Kuang H, Ge L, Schoof PH, Bogers AJJC, Takkenberg JJM, Tseng EE. Biomechanics of Failed Pulmonary Autografts Compared With Normal Pulmonary Roots. Ann Thorac Surg 2016; 102:1996-2002. [PMID: 27457832 DOI: 10.1016/j.athoracsur.2016.05.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 04/27/2016] [Accepted: 05/02/2016] [Indexed: 10/21/2022]
Abstract
BACKGROUND Progressive dilatation of pulmonary autografts after the Ross operation may reflect inadequate remodeling of the native pulmonary root to adapt to systemic circulation. Understanding the biomechanics of autograft root dilatation may aid designing strategies to prevent dilatation. We have previously characterized normal human pulmonary root material properties; however, the mechanical properties of failed autografts are unknown. In this study, failed autograft roots explanted during reoperation were acquired, and their material properties were determined. METHODS Failed pulmonary autograft specimens were obtained from patients undergoing reoperation after the Ross operation. Fresh human native pulmonary roots were obtained from the transplant donor network as controls. Biaxial stretch testing was performed to determine tissue mechanical properties. Tissue stiffness was determined at patient-specific physiologic stresses at pulmonary pressures. RESULTS Nonlinear stress-strain response was present in both failed autografts and normal pulmonary roots. Explanted pulmonary autografts were less stiff than were their native pulmonary root counterparts at 8 mm Hg (134 ± 42 vs 175 ± 49 kPa, respectively) (p = 0.086) and 25 mm Hg (369 ± 105 vs 919 ± 353 kPa, respectively) (p = 0.006). Autograft wall stiffness at both 8 and 25 mm Hg was not correlated with age at the Ross procedure (p = 0.898 and p = 0.813, respectively) or with time in the systemic circulation (p = 0.609 and p = 0.702, respectively). CONCLUSIONS Failed pulmonary autografts retained nonlinear response to mechanical loading typical of healthy human arterial tissue. Remodeling increased wall thickness but decreased wall stiffness in failed autografts. Increased compliance may explain progressive autograft root dilatation in autograft failures.
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Affiliation(s)
- Aart Mookhoek
- Department of Cardiothoracic Surgery, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Kapil Krishnan
- Department of Surgery, University of California San Francisco Medical Center and San Francisco Veterans Affairs Medical Center, San Francisco, California
| | - Sam Chitsaz
- Division of Cardiology, Department of Medicine, University of Texas at Houston, Houston, Texas
| | - Heide Kuang
- Department of Surgery, University of California San Francisco Medical Center and San Francisco Veterans Affairs Medical Center, San Francisco, California
| | - Liang Ge
- Department of Surgery, University of California San Francisco Medical Center and San Francisco Veterans Affairs Medical Center, San Francisco, California
| | - Paul H Schoof
- Department of Pediatric Cardiothoracic Surgery, Utrecht University Medical Center, Utrecht, The Netherlands
| | - Ad J J C Bogers
- Department of Cardiothoracic Surgery, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Johanna J M Takkenberg
- Department of Cardiothoracic Surgery, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Elaine E Tseng
- Department of Surgery, University of California San Francisco Medical Center and San Francisco Veterans Affairs Medical Center, San Francisco, California.
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Dionne PO, Wener E, Emmott A, Cartier R, Mongrain R, Leask R, El-Hamamsy I. The Ross procedure: biomechanical properties of the pulmonary artery according to aortic valve phenotype. Interact Cardiovasc Thorac Surg 2016; 23:371-6. [DOI: 10.1093/icvts/ivw148] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Accepted: 04/09/2016] [Indexed: 01/01/2023] Open
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Karaskov A, Sharifulin R, Zheleznev S, Demin I, Lenko E, Bogachev-Prokophiev A. Results of the Ross procedure in adults: a single-centre experience of 741 operations. Eur J Cardiothorac Surg 2016; 49:e97-e104. [DOI: 10.1093/ejcts/ezw047] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 01/12/2016] [Indexed: 11/15/2022] Open
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Forcillo J, Cikirikcioglu M, Poirier N, El-Hamamsy I. The Ross procedure: total root technique. Multimed Man Cardiothorac Surg 2014; 2014:mmu018. [PMID: 25298364 DOI: 10.1093/mmcts/mmu018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
We describe our technique for the Ross procedure using a total root technique without any foreign material for autograft support. We insist on technical principles, based on the surgical anatomy of the aortic and pulmonary root, aimed at optimizing aortic root dynamics while ensuring long-term stability of the autograft root.
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Affiliation(s)
- Jessica Forcillo
- Department of Cardiac Surgery, Montreal Heart Institute, Université de Montréal, Quebec, Canada
| | - Mustafa Cikirikcioglu
- Department of Cardiac Surgery, Montreal Heart Institute, Université de Montréal, Quebec, Canada Division of Cardiovascular Surgery, Department of Surgery, University Hospitals and Medical Faculty of Geneva, Geneva, Switzerland
| | - Nancy Poirier
- Department of Cardiac Surgery, Montreal Heart Institute, Université de Montréal, Quebec, Canada
| | - Ismail El-Hamamsy
- Department of Cardiac Surgery, Montreal Heart Institute, Université de Montréal, Quebec, Canada
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Bouhout I, Poirier N, Mazine A, Dore A, Mercier LA, Leduc L, El-Hamamsy I. Cardiac, obstetric, and fetal outcomes during pregnancy after biological or mechanical aortic valve replacement. Can J Cardiol 2014; 30:801-7. [PMID: 24970791 DOI: 10.1016/j.cjca.2014.03.036] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2014] [Revised: 03/27/2014] [Accepted: 03/28/2014] [Indexed: 10/25/2022] Open
Abstract
BACKGROUND The aim of this study was to assess pregnancy-related cardiac, maternal, and fetal outcomes in women who underwent aortic valve replacement (AVR). METHODS From 1978-2011, 67 women < 40 years of age underwent 74 isolated AVRs (52 mechanical prostheses and 22 bioprostheses). All patients were prospectively followed at our dedicated valve clinic. Patients with Turner syndrome, previous hysterectomy, or tubal ligation were excluded. Cardiovascular, obstetric, and fetal outcomes were gathered from medical records and telephone interviews. RESULTS A total of 27 pregnancies were reported in 14 patients (bioprosthetic AVR, n = 20; mechanical AVR, n = 7). In the bioprosthetic AVR group, the following adverse events occurred: hospitalizations for syncope (n = 2), prosthetic valve deterioration after pregnancy necessitating reintervention 6 months postpartum (n = 1), miscarriages (n = 9), and preterm birth (n = 1). In the mechanical AVR group, the following adverse events occurred: embolic myocardial infarctions with a decrease in systolic function (n = 2; 1 pregnancy was terminated and 1 was completed), miscarriage (n = 1), postpartum bleeding (n = 1), urgent cesarean section for placental abruption (n = 1), and preterm birth (n = 1). CONCLUSIONS Findings from this study suggest that pregnancies in women with mechanical AVRs are associated with a higher risk of cardiac and obstetric adverse events. Thus, from this limited cohort, it appears that pregnancies in women with bioprostheses are safer than those in patients with mechanical AVRs.
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Affiliation(s)
- Ismail Bouhout
- Department of Cardiac Surgery, Montreal Heart Institute, Université de Montréal, Montreal, Québec, Canada
| | - Nancy Poirier
- Department of Cardiac Surgery, Montreal Heart Institute, Université de Montréal, Montreal, Québec, Canada
| | - Amine Mazine
- Department of Cardiac Surgery, Montreal Heart Institute, Université de Montréal, Montreal, Québec, Canada
| | - Annie Dore
- Department of Medicine, Montreal Heart Institute, Université de Montréal, Montreal, Québec, Canada
| | - Lise-Andrée Mercier
- Department of Medicine, Montreal Heart Institute, Université de Montréal, Montreal, Québec, Canada
| | - Line Leduc
- Department of Obstetrics and Gynaecology, CHU Ste-Justine, Université de Montréal, Montreal, Québec, Canada
| | - Ismail El-Hamamsy
- Department of Cardiac Surgery, Montreal Heart Institute, Université de Montréal, Montreal, Québec, Canada.
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