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Østergaard L, Køber N, Petersen JK, Jensen AD, De Backer O, Køber L, Fosbøl EL. Long-Term Cause of Death in Patients Who Underwent Transcatheter Aortic Valve Implantation. Am J Cardiol 2023; 193:91-96. [PMID: 36881942 DOI: 10.1016/j.amjcard.2022.10.058] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/20/2022] [Accepted: 10/30/2022] [Indexed: 03/07/2023]
Abstract
As our knowledge on treatment with transcatheter aortic valve implantation (TAVI) increases and more implantations are conducted, we need knowledge on how TAVI affects the end of life. Long-term causes of death remain sparsely described. The aim of the study was to examine differences in the cause of death according to time from TAVI. All patients who underwent TAVI in Denmark from 2008 to 2017 were matched on gender, age, and calendar year with controls from the background population (1:4). Mortality and the proportion of cardiovascular and noncardiovascular death was assessed at 1-year time points during follow-up. A total of 3,434 patients receiving TAVI and 13,672 controls were identified. The median follow-up was 2.67 years for patients receiving TAVI and 2.90 years for controls. Among patients receiving TAVI, 1,254 deaths (36.5%) were recorded, with 46.7% being from cardiovascular causes. The corresponding numbers for controls were 3,338 deaths (24.4%) and 27.2% being from cardiovascular causes. The proportion of cardiovascular deaths decreased from 53.8% in the first year after TAVI to 32.7% among those who died >7 years from TAVI (p = 0.008 for trend). For controls, no difference was seen in the proportion of cardiovascular death regardless of follow-up time. In conclusion, with data from nationwide registries, we provide results reassuring that patients with long-term survival from TAVI resemble the general public regarding the cause of death.
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Affiliation(s)
- Lauge Østergaard
- The Heart Center, Rigshospitalet, Copenhagen, Denmark; Department of Cardiology, Bispebjerg-Frederiksberg Hospital, Copenhagen, Denmark.
| | - Nana Køber
- Department of Cardiology, Bispebjerg-Frederiksberg Hospital, Copenhagen, Denmark
| | | | | | - Ole De Backer
- The Heart Center, Rigshospitalet, Copenhagen, Denmark
| | - Lars Køber
- The Heart Center, Rigshospitalet, Copenhagen, Denmark
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von Kappelgaard L, Gislason G, Davidsen M, Zwisler AD, Juel K. Temporal trends and socioeconomic differences in treatment and mortality following a diagnosis of aortic stenosis. Int J Cardiol 2021; 336:87-92. [PMID: 34051288 DOI: 10.1016/j.ijcard.2021.05.039] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 05/12/2021] [Accepted: 05/24/2021] [Indexed: 11/30/2022]
Abstract
AIMS This study aims at determining the temporal trends and the socioeconomic differences in treatment and mortality following a diagnosis of aortic stenosis. METHODS AND RESULTS A total of 45,026 patients with a first-time diagnosis of aortic stenosis were identified in the Danish National Patient Registry in the period 2000-17. The risk of AVR within the first year after diagnosis decreased (OR = 1.84 in 2000-02 compared to 2015-16) and the risk was lower in the low-level educational group (OR = 0.85) and in the medium-level group (OR = 0.94) compared to high-level education. The risk of death after AVR within the first year decreased (OR = 2.25 in 2000-02 compared to 2015-16) and the risk was higher in the low-level educational group (OR = 1.32) and in the medium-level group (OR = 1.28) compared to high-level education. The risk of death within the first year after diagnosis, for those patients who did not get an AVR during the follow-up, decreased (OR = 3.08 in 2000-02 compared to 2015-16) and the risk was higher in the low-level educational group (OR = 1.21) and in the medium-level group (OR = 1.10) compared to high-level education. CONCLUSION Since 2000 there has been a decrease in both AVR treatment rate, mortality rate after AVR and mortality rate in patients not receiving AVR. For patients with lower-level education there is lower AVR treatment rate, higher mortality rate after AVR and higher mortality rate in patients not receiving AVR.
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Affiliation(s)
- Lene von Kappelgaard
- National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark; Department of Cardiology, Herlev-Gentofte University Hospitals, Gentofte, Denmark.
| | - Gunnar Gislason
- National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark; Department of Cardiology, Herlev-Gentofte University Hospitals, Gentofte, Denmark
| | - Michael Davidsen
- National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark
| | - Ann-Dorthe Zwisler
- The National Knowledge Centre for Rehabilitation and Palliative Care, Nyborg, Denmark
| | - Knud Juel
- National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark
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Hochholzer W, Nührenberg T, Flierl U, Olivier CB, Landmesser U, Möllmann H, Dörr M, Mehilli J, Schäfer A, Dürschmied D, Sibbing D, El-Armouche A, Zeymer U, Neumann FJ, Ahrens I, Geisler T. Antithrombotische Therapie nach strukturellen kardialen Interventionen. DER KARDIOLOGE 2021. [DOI: 10.1007/s12181-020-00441-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Carrel T, Heinisch PP. History, development and clinical perspectives of sutureless and rapid deployment surgical aortic valve replacement. Ann Cardiothorac Surg 2020; 9:375-385. [PMID: 33102176 DOI: 10.21037/acs-2020-surd-18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Degenerative aortic stenosis is the most frequent valvular heart disease in industrialized countries. Conservative treatment may beneficially influence symptoms but is never successful. Surgical aortic valve replacement (SAVR) was the only recognized treatment option to provide substantially prolonged survival until 2008. Operative mortality of isolated SAVR has been reported as low as 0.5% to 1% in experienced institutions, while long-term survival is close to that observed in a control healthy population of similar age. A multitude of studies have demonstrated the beneficial effects of SAVR with regard to improvement in quality of life and physical performance in the majority of symptomatic patients. In the last decade, transcatheter aortic valve implantation (TAVI) has emerged as an equal treatment modality, first in patients with high surgical risk and more recently in patients with intermediate and low surgical risk. Paravalvular regurgitation and the higher rate of pacemaker implantation remain points of consideration. Additionally, the long-term durability of TAVI devices and occurrence of stroke late after TAVI require additional analyses. Sutureless (SU-SAVR) and rapid deployment valve (R-SAVR) were designed to simplify and accelerate a conventional or less invasive surgical procedure while allowing complete excision of the calcified native valve. From 3 different implants tested more than 10 to 15 years ago, only two are available on the market today: the Perceval® valve from Liva Nova and the Intuity® sutureless prosthesis from Edwards Lifesciences. There has been extensive experience with these two devices in previous years and the results obtained are comparable to those observed following the use of conventional implants. The sutureless devices may be of particular interest for more complex and combined surgical procedures. This review summarizes the sutureless (SU-SAVR) and rapid deployment valve technologies and presents a clinical outlook for the patient population managed with these devices.
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Affiliation(s)
- Thierry Carrel
- Department for Cardiovascular Surgery, University Hospital and University of Bern, Bern, Switzerland
| | - Paul Philipp Heinisch
- Department for Cardiovascular Surgery, University Hospital and University of Bern, Bern, Switzerland
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5
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Messas E, Rémond MC, Goudot G, Zarka S, Penot R, Mateo P, Kwiecinski W, Escudero DS, Bel A, Ialy-Radio N, Bertrand B, Bruneval P, Marijon E, Spaargaren R, Tanter M, Pernot M. Feasibility and safety of non-invasive ultrasound therapy (NIUT) on an porcine aortic valve. Phys Med Biol 2020; 65:215004. [PMID: 33104523 DOI: 10.1088/1361-6560/aba6d3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Calcific aortic stenosis (CAS) is associated with advanced age and comorbidities, therefore a non-invasive therapy for it would be beneficial. We previously demonstrated that ultrasound therapy improved calcified bioprosthetic valve function in an open chest model. For translational applications, we tested non-invasive ultrasound therapy (NIUT) transthoracically on swine aortic valves and investigated the need for antithrombotic treatment as a follow-up. Primary objective: feasibility and safety of NIUT. Secondary objectives: occurrence, severity and evolution of side effects during therapy and at 1 month follow-up. The device (Valvosoft, Cardiawave) consisted of an electronically steered multi-element transducer and a 2D echocardiographic probe. Three groups of swine received treatment on aortic valves: NIUT (group 1; n = 10); NIUT and 1 month antithrombotic treatment (group 2; n = 5); sham group (group 3; n = 4). Feasibility was successfully reached in all treated swine (n = 15) and no life-threatening arrhythmia were detected. Non-sustained ventricular tachycardia occurred during the procedure in seven swine. Decrease or interruption of NIUT ended arrhythmia. Histopathology revealed no valve or surrounding tissue damage and echocardiography revealed no valvular dysfunction. Only one animal had side effects [right ventricle (RV) dilatation], but the RV normalized after therapy cessation with no sequelae at follow-up. No disturbance in biological markers nor valve thrombosis were observed at follow-up. Antithrombotic treatment did not demonstrate any advantage. Survival at 30 d was 100%. We demonstrated, in vivo, the feasibility and safety of transthoracic NIUT on aortic valves in a swine model without serious adverse events. We expect this first-time transthoracic delivery of NIUT to pave the way towards a new non-invasive approach to valve softening in human CAS to restore valve function.
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Affiliation(s)
- Emmanuel Messas
- Cardio-Vascular Departement, Hôpital Européen Georges Pompidou, Université of Paris, UMR 970, Paris, France. French Research Consortium STOP-AS, supported by the French Government, managed by the National Research Agency (ANR) under the program 'Investissements d'Avenir' with the reference ANR-16-RHUS-003, Rouen, France. These authors contributed equally to this work. Author to whom any correspondence should be addressed
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Matsuzono K, Miura K, Ozawa T, Mashiko T, Fujimoto S. Outcome of intravenous rt-PA therapy for a stroke patient during the short-term period after TAVI. Neurol Sci 2020; 41:2625-2627. [DOI: 10.1007/s10072-020-04344-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Accepted: 03/13/2020] [Indexed: 11/28/2022]
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Yamauchi T, Takano H, Miyata H, Motomura N, Takamoto S. Risk Factors for Mortality and Morbidity of Surgical Aortic Valve Replacement for Aortic Stenosis - Risk Model From a Japan Cardiovascular Surgery Database. Circ Rep 2020; 1:131-136. [PMID: 33693127 PMCID: PMC7890290 DOI: 10.1253/circrep.cr-19-0010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Background:
The aim of this study was to determine adequate indication for transcatheter aortic valve replacement (TAVR). We analyzed risk factors of surgical aortic valve replacement (SAVR) not only for mortality, but also for morbidity, including long hospital stay (≥90 days) and patient activity at discharge, in patients who underwent SAVR for aortic stenosis (AS). Methods and Results:
Using the Japan Adult Cardiovascular Surgery Database (JCVSD), 13,961 patients with or without coronary artery bypass grafting who underwent elective SAVR for AS were identified from January 2008 to December 2012. The hospital mortality rate was 3.1%. The percentage of patients who had long hospital stay (≥90 days) and who had moderately or severely decompressed activity at discharge (modified Rankin scale ≥4) was 2.9% and 6.5%, respectively. Eleven and 20 preoperative predictors of hospital mortality and morbidity, respectively, including long hospital stay and compromised status at discharge, were identified. Based on these risk factors, the risk model predicted hospital mortality (area under the curve [AUC], 0.732) and morbidity (AUC, 0.694). Conclusions:
Using JCVSD, a risk model of SAVR was developed for AS. This model can identify patients at high risk not only for mortality, but also for mortality and morbidity, including long hospital stay and status at discharge.
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Affiliation(s)
- Takashi Yamauchi
- Department of Cardiovascular Surgery, Dokkyo Medical University Saitama Medical Center Koshigaya Japan
| | - Hiroshi Takano
- Department of Cardiovascular Surgery, Dokkyo Medical University Saitama Medical Center Koshigaya Japan
| | - Hiroaki Miyata
- Department of Healthcare Quality Assessment, The University of Tokyo Tokyo Japan
| | - Noboru Motomura
- Department of Cardiovascular Surgery, Toho University, Sakura Medical Center Sakura Japan
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Naik M, McNamara C, Jabbour RJ, Gopalan D, Mikhail GW, Mirsadraee S, Ariff B. Imaging of transcatheter aortic valve replacement complications. Clin Radiol 2020; 76:27-37. [PMID: 31964536 DOI: 10.1016/j.crad.2019.12.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 12/11/2019] [Indexed: 01/05/2023]
Abstract
Aortic stenosis is increasing in incidence and is now commonly managed with transcatheter aortic valve replacement (TAVR) in intermediate and high-risk patients. Radiologists are likely to encounter patients undergoing this procedure both pre- and postoperatively, and therefore, an understanding of procedural complications is essential. Complications may relate to the access site or approach, or the valve itself. This article will review the most common complications described in literature and focuses on the role of multidetector computed tomography (CT) in their evaluation either exclusively, or complementary to other imaging methods.
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Affiliation(s)
- M Naik
- Department of Radiology, Hammersmith Hospital, Du Cane Road, London, W12 0HS, UK
| | - C McNamara
- Department of Radiology, Hammersmith Hospital, Du Cane Road, London, W12 0HS, UK
| | - R J Jabbour
- Department of Cardiology, Hammersmith Hospital, Du Cane Road, London, W12 0HS, UK
| | - D Gopalan
- Department of Radiology, Hammersmith Hospital, Du Cane Road, London, W12 0HS, UK
| | - G W Mikhail
- Department of Cardiology, Hammersmith Hospital, Du Cane Road, London, W12 0HS, UK
| | - S Mirsadraee
- Department of Radiology, Harefield Hospital, Hill End Road, Uxbridge, UB9 6JH, UK
| | - B Ariff
- Department of Radiology, Hammersmith Hospital, Du Cane Road, London, W12 0HS, UK.
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9
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Abstract
A hybrid suite is an operating theater with imaging equipment equivalent to that used in an angiography suite with computed tomography (CT) and magnetic resonance imaging (MRI). They are often situated outside the operating room area and typically serve as multifunctional rooms designed to support a variety of catheter-based endovascular procedures and open surgery to be performed in the same location. The possibility to perform these in the same location facilitates the combination of both approaches to so-called hybrid procedures. Typical clinical applications of hybrid suites are cardiac, thoracic and vascular surgery, neurosurgery and neuroradiology, as well as orthopedics and traumatology. Transcatheter aortic valve implantation (TAVI) is significantly less invasive than a classical approach by open surgery. Patients older than 75 years with relevant comorbidities benefit most from the minimally invasive interventional approach. There has been a paradigm shift in the management of vascular diseases from open surgical repair to new percutaneous endovascular interventions with good early outcomes. Of particular interest in this context is the ability to block the part of the aorta proximal to the aneurysm with a catheter-based dilatation balloon. Progress in image fusion technology and intraoperative navigation has led to an increased acceptance of hybrid suites in orthopedics and traumatology. The complex care of high-risk patients most often outside the operating theater area is a challenge for the anesthesia team. This demands meticulous planning on behalf of the anesthesiologist to ensure an appropriate and safe strategy for anesthesia, intraoperative monitoring, vascular access and the need for additional equipment. A thorough understanding of the complexity of procedures is vital and a series of questions must be addressed: what is needed to safely administer anesthesia in this environment? What additional resources would be needed for an emergency situation? Is the patient being kept safe from radiation hazards? Moreover, logistics may become an issue as the hybrid suite is most often delocalized. In addition, many procedures realized in a hybrid suite require a multidisciplinary approach and therefore teamwork and professional communication are mandatory. Anesthesiologists need to have an integral role in the hybrid suite team, understanding and anticipating the risks for patients and leading the organization of workflow. The challenge in anesthesia is to ensure that when patients are taken to these complex environments the resources available enable high standards of care to be provided. With future developments in imaging technology combined with more powerful hardware and software, a far greater integration of all these imaging and navigation technologies will be seen in future operating rooms. Finally, patients are becoming more aware of medical developments via the world wide web and increasingly request what they consider to be state of the art treatment.
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Affiliation(s)
- T Fuchs-Buder
- Klinik für Anästhesie und Intensivmedizin, Universitätsklinikum Nancy, Nancy, Frankreich. .,Département d'Anesthésie-Réanimation, Rue du Morvan, 54511, Vandoeuvre-les-Nancy, Frankreich.
| | - N Settembre
- Klinik für Gefäßchirurgie, Universitätsklinikum Nancy, Nancy, Frankreich
| | - D Schmartz
- Klinik für Anästhesie, Universitätsklinikum Brugmann, Brüssel, Belgien
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Mas-Peiro S, Papadopoulos N, Walther T, Zeiher AM, Fichtlscherer S, Vasa-Nicotera M. Nutritional risk index is a better predictor of early mortality than conventional nutritional markers after transcatheter aortic valve replacement: A prospective cohort study. Cardiol J 2019; 28:312-320. [PMID: 30994180 DOI: 10.5603/cj.a2019.0038] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 03/26/2019] [Accepted: 03/27/2019] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Nutritional risk index (NRI) has been shown to better predict survival than body mass index (BMI) or albumin after several cardiovascular interventions. Under assessment herein is whether NRI can have higher predictive value than conventional parameters for short-term survival after transcatheter aortic valve replacement (TAVR). METHODS A prospective cohort study was performed. In-hospital, 1-month and 3-month survival was evaluated. Since most patients undergoing TAVR are over 65, the NRI definition for a geriatric population (GNRI) was used. The impact of baseline BMI, albumin levels, and GNRI on in-hospital and short-term survival was assessed. RESULTS One hundred fifty two patients aged 82 ± 5.4 were included. In-hospital, 1-month, and 3-month mortality was 5.3%, 5.9%, and 9.2%, respectively. Mean GNRI was 112.7 ± 11.9, and was significantly lower in patients who died in-hospital (101.0 ± 8.8 vs. 113.3 ± 11.7), at 30 days (103.4 ± 10.9 vs. 113.3 ± 11.7), and at 90 days (104.0 ± 9.6 vs. 113.6 ± 11.8) than in survivors (all, p < 0.05). Three-month mortality in patients with no nutritional risk was 6.8% (9/132) vs. 25% (5/20) in patients with malnutrition (p = 0.022). In univariate analysis, GNRI predicted in-hospital, 30-day, and 90-day mortality (all, p < 0.05). Predictive value remained significant after adjusting for age, EuroSCORE II, and STS-Score (p < 0.05). Based on receiver operating curves, GNRI (AUC: 0.73) showed a better discrimination for 3-month mortality than albumin (0.69), weight (0.67) or BMI (0.62). The optimal cut-off value was 109.8. CONCLUSIONS The geriatric nutritional risk index predicts short-term mortality after TAVR and has a higher discriminating ability than other commonly used nutritional variables. It is a simple parameter that identifies those patients who could benefit from pre-procedural nutritional therapy.
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Affiliation(s)
- Silvia Mas-Peiro
- University Hospital Frankfurt am Main, Cardiology Department, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.
| | | | - Thomas Walther
- University Hospital Frankfurt am Main, Department of Cardiothoracic Surgery
| | - Andreas M Zeiher
- University Hospital Frankfurt am Main, Cardiology Department, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Stephan Fichtlscherer
- University Hospital Frankfurt am Main, Cardiology Department, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Mariuca Vasa-Nicotera
- University Hospital Frankfurt am Main, Cardiology Department, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
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Puri R, Webb JG, Al Qoofi F, Welsh RC, Brown C, Masson JB, Natarajan MK, Peniston C, Cheema AN, Radhakrishnan S, Généreux P, Thoenes M, Côté M, Rodés-Cabau J. Evolution of Procedural and Clinical Outcomes After Balloon-Expanding Transcatheter Aortic Valve Implantation In Canada (from the Early Canadian Experience and SOURCE XT Registries). Am J Cardiol 2018; 122:461-467. [PMID: 29980274 DOI: 10.1016/j.amjcard.2018.04.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 04/04/2018] [Accepted: 04/05/2018] [Indexed: 12/27/2022]
Abstract
Transcatheter aortic valve implantation (TAVI) has evolved globally, yet its evolution and performance across the Canadian landscape have yet to be formally assessed. Patients captured within the early Canadian TAVI experience with a balloon-expanding valve (n = 339; 2005 to 2009) and those enrolled in the Canadian SOURCE XT registry (n = 415; 2012 to 2015) were systematically compared with respect to baseline clinical, echocardiographic, and procedural characteristics. Valve-related and clinical outcomes were compared across the 2 time periods according to standardized definitions. Notable baseline between-group differences were noted across time, with Society of Thoracic Surgeons Predicted Risk of Mortality score being lower in the SOURCE XT cohort compared with the earlier Canadian cohort (7.4 ± 6.6% vs 9.8 ± 6.4%, p <0.001). The SOURCE XT cohort underwent TAVI through the transfemoral approach more frequently than their earlier Canadian counterparts (75% vs 48%), at the expense of transapical access, with major access site vascular complications (2.7% vs 13%), and ≥mild residual aortic regurgitation (39% vs 69%) being significantly less frequent (p <0.001 for all). At 30-days, there were no significant differences in rates of stroke (1.9% vs 2.4%) or new pacemakers (5.8% vs 5.0%); however, 30-day and 1-year mortality rates were significantly lower in the SOURCE XT cohort (3.6% vs 10.4%; 13.0% vs 24.2%, respectively, p<0.001 for both). In conclusion, TAVIs evolution in Canada with a balloon-expanding valve coincided with more optimized patient selection and increasing use of transfemoral access, which along with increasing operator experience, contributed to improved procedural and longer term clinical outcomes.
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Affiliation(s)
- Rishi Puri
- Quebec Heart and Lung Institute, Laval University, Quebec City, Quebec, Canada
| | - John G Webb
- St. Paul's Hospital, Vancouver, British Columbia, Canada
| | | | - Robert C Welsh
- University of Alberta Hospital, Edmonton, Alberta, Canada
| | - Craig Brown
- Saint John's Regional Hospital, Saint John, New Brunswick, Canada
| | | | | | | | | | | | | | | | - Mélanie Côté
- Quebec Heart and Lung Institute, Laval University, Quebec City, Quebec, Canada
| | - Josep Rodés-Cabau
- Quebec Heart and Lung Institute, Laval University, Quebec City, Quebec, Canada.
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