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Chiang CY, Huang JH, Chiu KM, Chen JS. Impact of Recurrent Mitral Regurgitation on Left Ventricular Mass Regression and Cardiac Events following Mitral Valve Repair. J Clin Med 2023; 13:235. [PMID: 38202242 PMCID: PMC10779914 DOI: 10.3390/jcm13010235] [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: 11/28/2023] [Revised: 12/26/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND Mitral valve regurgitation results in volume overload, followed by left ventricular remodeling. Variation of reverse remodeling following mitral repair influences the clinical outcomes. We aimed to evaluate the association between recurrent mitral regurgitation and mass regression following mitral valve repair and the impact on major adverse cardiovascular events. METHODS A retrospective cohort study was conducted on 164 consecutive patients with severe mitral regurgitation who underwent elective mitral valve repair. Subgroups were classified based on the presence of recurrent mitral regurgitation exceeding moderate severity. The hemodynamic parameters were evaluated according to geometry, mass, and function with Doppler echocardiography before and after surgery. Cox regression analysis was performed to evaluate the association between hemodynamics and mass regression and clinical outcomes. RESULTS The results for MR indicated 110 cases with non-recurrent MR and 54 with recurrent MR, along with 31 major adverse cardiovascular events. The tracked echocardiographic results revealed less reduction in dimension and volume, along with less mass regression in the recurrent MR subgroup. Significant differences were revealed in the relative change of the LV end-diastolic volume index and relative mass regression between subgroups. The relative change in the LVEDVI was proportionally correlated with relative mass regression. Cox regression analysis identified correlations with major adverse cardiovascular events, including suture annuloplasty, recurrent mitral regurgitation, tracked LV mass, relative LV mass regression, and systolic dysfunction. CONCLUSION LV mass regression and relative change of the LV end-diastolic volume could be risk predictors of recurrent mitral regurgitation. The extent of LV mass regression is correlated with adverse cardiac events.
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Affiliation(s)
- Chih-Yao Chiang
- Department of Cardiovascular Surgery, Cardiovascular Center, Far Eastern Memorial Hospital, New Taipei City 220216, Taiwan; (C.-Y.C.); (J.-H.H.)
- Division of Cardiovascular Surgery, Department of Surgery, School of Medicine, National Defense Medical Center, Taipei 114201, Taiwan
| | - Jih-Hsin Huang
- Department of Cardiovascular Surgery, Cardiovascular Center, Far Eastern Memorial Hospital, New Taipei City 220216, Taiwan; (C.-Y.C.); (J.-H.H.)
| | - Kuan-Ming Chiu
- Department of Cardiovascular Surgery, Cardiovascular Center, Far Eastern Memorial Hospital, New Taipei City 220216, Taiwan; (C.-Y.C.); (J.-H.H.)
| | - Jer-Shen Chen
- Department of Cardiovascular Surgery, Cardiovascular Center, Far Eastern Memorial Hospital, New Taipei City 220216, Taiwan; (C.-Y.C.); (J.-H.H.)
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Marinho EMS, Santos JMM, Brito BDS, Andrade ADS, Lopes JM. Mechanical Valve Implants: What Are Their Long-Term Effects?Reply. Arq Bras Cardiol 2023; 120:e20220875. [PMID: 37466489 PMCID: PMC10364984 DOI: 10.36660/abc.20220875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 12/15/2022] [Accepted: 12/15/2022] [Indexed: 07/20/2023] Open
Affiliation(s)
- Eldys Myler Santos Marinho
- Universidade Federal do Vale do São FranciscoPetrolinaPEBrasilUniversidade Federal do Vale do São Francisco (UNIVASF) – Educação Física, Petrolina, PE – Brasil
| | - Júlio Martinez Martinez Santos
- Universidade Federal do Vale do São FranciscoPaulo AfonsoBABrasilUniversidade Federal do Vale do São Francisco (UNIVASF) – Medicina, Paulo Afonso, BA – Brasil
| | - Bruno da Silva Brito
- Universidade Federal da ParaíbaPrograma de Pós-graduação em NeurociênciaJoão PessoaPBBrasilUniversidade Federal da Paraíba - Programa de Pós-graduação em Neurociência, João Pessoa, PB – Brasil
| | - Achilles de Souza Andrade
- Universidade Federal da ParaíbaJoão PessoaPBBrasilUniversidade Federal da Paraíba – Medicina, João Pessoa, PB – Brasil
| | - Johnnatas Mikael Lopes
- Universidade Federal do Vale do São FranciscoPaulo AfonsoBABrasilUniversidade Federal do Vale do São Francisco (UNIVASF) – Medicina, Paulo Afonso, BA – Brasil
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3
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Reparación valvular mitral por prolapso del velo posterior: resultados y seguimiento a 20 años. CIRUGIA CARDIOVASCULAR 2023. [DOI: 10.1016/j.circv.2022.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
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4
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Gerçek M, Faber L, Rudolph V, Fox H, Puehler T, Omran H, Wolf LK, Paluszkiewicz L, Zeiher AM, Hakim-Meibodi K, Gummert J, Dimitriadis Z. Myocardial adaptation as assessed by speckle tracking echocardiography after isolated mitral valve surgery for primary mitral regurgitation. Int J Cardiovasc Imaging 2020; 37:913-920. [PMID: 33051820 PMCID: PMC7969695 DOI: 10.1007/s10554-020-02065-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 10/05/2020] [Indexed: 11/29/2022]
Abstract
The risk of left ventricular (LV) and right ventricular (RV) maladaptation after surgery for isolated primary mitral regurgitation (PMR) is poorly defined. We aimed to evaluate LV and RV contractile function using speckle-tracking analysis alongside with quantification of exercise tolerance in patients with PMR after mitral valve surgery. All consecutive patients with symptomatic PMR undergoing mitral valve surgery between July 2015 and May 2017 were prospectively enrolled. Sequential echocardiographic studies along with clinical assessment were performed before and three months after surgery. Mean age in 138 patients was 65.8 ± 12.7 years, 48.2% (66) of whom were female. Mean LV ejection fraction decreased from 57 ± 12% to 50 ± 11% (p < 0.001), LV global longitudinal strain deteriorated from -19.2 ± 4.1% to -15.7 ± 3.8% (p < 0.001), and mechanical strain dispersion increased from 88 ± 12 to 117 ± 115 ms (p = 0.004). There was a reduction in tricuspid annulus plane systolic excursion from 22 ± 5 mm to 18 ± 4 mm (p < 0.001), as well as a slight deterioration of RV free wall mean longitudinal strain from -16.9 ± 5.6% to -15.7 ± 4.1% (p = 0.05). The rate of moderate to severe tricuspid regurgitation significantly decreased (p < 0.005). Regarding exercise tolerance, the New York Heart Association class improved (p < 0.001) and the walking distance increased (p < 0.001). During mid-term follow up after surgery for PMR, a deterioration of LV and RV contractile function measures could be observed. However, the clinical status, LV dimensions, and concomitant tricuspid regurgitation improved which in particular imply more effective RV contractile pattern.
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Affiliation(s)
- Muhammed Gerçek
- Clinic for General and Interventional Cardiology/Angiology, Herz- Und Diabeteszentrum NRW, Ruhr-Universität Bochum, Georgstraße 11, 32545, Bad Oeynhausen, Germany.
| | - Lothar Faber
- Clinic for General and Interventional Cardiology/Angiology, Herz- Und Diabeteszentrum NRW, Ruhr-Universität Bochum, Georgstraße 11, 32545, Bad Oeynhausen, Germany
| | - Volker Rudolph
- Clinic for General and Interventional Cardiology/Angiology, Herz- Und Diabeteszentrum NRW, Ruhr-Universität Bochum, Georgstraße 11, 32545, Bad Oeynhausen, Germany.,Heart Failure Department, Herz- Und Diabeteszentrum NRW, Ruhr-Universität Bochum, Bad Oeynhausen, Germany
| | - Henrik Fox
- Clinic for Thoracic and Cardiovascular Surgery, Herz- Und Diabeteszentrum NRW, Ruhr-Universität Bochum, Bad Oeynhausen, Germany.,Heart Failure Department, Herz- Und Diabeteszentrum NRW, Ruhr-Universität Bochum, Bad Oeynhausen, Germany
| | - Thomas Puehler
- Department of Cardiac and Vascular Surgery, University Medical Center Schleswig Holstein, Campus Kiel, Kiel, Germany
| | - Hazem Omran
- Clinic for General and Interventional Cardiology/Angiology, Herz- Und Diabeteszentrum NRW, Ruhr-Universität Bochum, Georgstraße 11, 32545, Bad Oeynhausen, Germany
| | - Lisa Katharina Wolf
- Clinic for General and Interventional Cardiology/Angiology, Herz- Und Diabeteszentrum NRW, Ruhr-Universität Bochum, Georgstraße 11, 32545, Bad Oeynhausen, Germany
| | - Lech Paluszkiewicz
- Clinic for Thoracic and Cardiovascular Surgery, Herz- Und Diabeteszentrum NRW, Ruhr-Universität Bochum, Bad Oeynhausen, Germany
| | - Andreas M Zeiher
- Department of Cardiology, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Kavous Hakim-Meibodi
- Clinic for Thoracic and Cardiovascular Surgery, Herz- Und Diabeteszentrum NRW, Ruhr-Universität Bochum, Bad Oeynhausen, Germany
| | - Jan Gummert
- Clinic for Thoracic and Cardiovascular Surgery, Herz- Und Diabeteszentrum NRW, Ruhr-Universität Bochum, Bad Oeynhausen, Germany.,Heart Failure Department, Herz- Und Diabeteszentrum NRW, Ruhr-Universität Bochum, Bad Oeynhausen, Germany
| | - Zisis Dimitriadis
- Department of Cardiology, University Hospital Frankfurt, Frankfurt am Main, Germany
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Amano M, Izumi C, Kim YJ, Park SJ, Park SW, Tanaka H, Hozumi T, Ling LH, Yu CM, Fukuda S, Otsuji Y, Song JK, Sohn DW. Changes of echocardiographic parameters in primary mitral regurgitation and determinants of symptom: an assessment from the Asian Valve Registry data. Heart Vessels 2019; 35:555-563. [DOI: 10.1007/s00380-019-01514-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Accepted: 09/20/2019] [Indexed: 12/26/2022]
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Yamashita Y, Tanoue Y, Sonoda H, Ushijima T, Kimura S, Oishi Y, Tatewaki H, Hiasa K, Arita T, Shiose A. Comparison of cardiac energetics after transcatheter and surgical aortic valve replacements. Interact Cardiovasc Thorac Surg 2019; 28:587-593. [PMID: 30364945 DOI: 10.1093/icvts/ivy292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 08/17/2018] [Accepted: 09/16/2018] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES The effect of transcatheter aortic valve replacement (TAVR) on cardiac energetics has not been described. We compared changes in cardiac energetics after TAVR with those after surgical aortic valve replacement (SAVR). METHODS We retrospectively estimated end-systolic elastance (Ees) and effective arterial elastance (Ea) using blood pressure and left ventricular (LV) volume obtained from echocardiography. LV efficiency [ventriculoarterial coupling (Ea/Ees) and the stroke work to pressure-volume area ratio (SW/PVA)] was calculated. Measurements were taken before, 1 week after and 1 year after bioprosthetic aortic valve replacement (TAVR, n = 56; SAVR, n = 61) in patients with severe aortic stenosis and preserved ejection fraction. RESULTS Patients with TAVR had a lower aortic valve pressure gradient and larger stroke volume 1 week after the procedure than those with SAVR. Ea was more markedly decreased, and LV efficiency was significantly improved 1 week after TAVR (SW/PVA 68.1% ± 8.4% to 72.0% ± 8.5%, P < 0.001), but LV efficiency was unchanged 1 week after SAVR (SW/PVA 70.1% ± 7.4% to 69.1% ± 8.0%). LV efficiency was improved 1 year after both procedures (SW/PVA 75.5% ± 6.1% in TAVR; 74.7% ± 6.4% in SAVR). CONCLUSIONS TAVR decreases the transvalvular pressure gradient further without deteriorating stroke volume in the early postoperative period, which is accompanied by early improvement in afterload and LV efficiency compared with SAVR. Improvement in LV efficiency at mid-term follow-up is satisfactory after both procedures.
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Affiliation(s)
- Yoshiyuki Yamashita
- Department of Cardiovascular Surgery, Kyushu University Hospital, Fukuoka, Japan
| | - Yoshihisa Tanoue
- Department of Cardiovascular Surgery, Kyushu University Hospital, Fukuoka, Japan
| | - Hiromichi Sonoda
- Department of Cardiovascular Surgery, Kyushu University Hospital, Fukuoka, Japan
| | - Tomoki Ushijima
- Department of Cardiovascular Surgery, Kyushu University Hospital, Fukuoka, Japan
| | - Satoshi Kimura
- Department of Cardiovascular Surgery, Kyushu University Hospital, Fukuoka, Japan
| | - Yasuhisa Oishi
- Department of Cardiovascular Surgery, Kyushu University Hospital, Fukuoka, Japan
| | - Hideki Tatewaki
- Department of Cardiovascular Surgery, Kyushu University Hospital, Fukuoka, Japan
| | - Kenichi Hiasa
- Department of Cardiovascular Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - Takeshi Arita
- Department of Hematology, Oncology and Cardiovascular Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - Akira Shiose
- Department of Cardiovascular Surgery, Kyushu University Hospital, Fukuoka, Japan
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Caballero A, Mao W, McKay R, Primiano C, Hashim S, Sun W. New insights into mitral heart valve prolapse after chordae rupture through fluid-structure interaction computational modeling. Sci Rep 2018; 8:17306. [PMID: 30470812 PMCID: PMC6251907 DOI: 10.1038/s41598-018-35555-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 11/07/2018] [Indexed: 12/19/2022] Open
Abstract
Mitral valve (MV) dynamics depends on a force balance across the mitral leaflets, the chordae tendineae, the mitral annulus, the papillary muscles and the adjacent ventricular wall. Chordae rupture disrupts the link between the MV and the left ventricle (LV), causing mitral regurgitation (MR), the most common valvular disease. In this study, a fluid-structure interaction (FSI) modeling framework is implemented to investigate the impact of chordae rupture on the left heart (LH) dynamics and severity of MR. A control and seven chordae rupture LH models were developed to simulate a pathological process in which minimal chordae rupture precedes more extensive chordae rupture. Different non-eccentric and eccentric regurgitant jets were identified during systole. Cardiac efficiency was evaluated by the ratio of external stroke work. MV structural results showed that basal/strut chordae were the major load-bearing chordae. An increased number of ruptured chordae resulted in reduced basal/strut tension, but increased marginal/intermediate load. Chordae rupture in a specific scallop did not necessarily involve an increase in the stress of the entire prolapsed leaflet. This work represents a further step towards patient-specific modeling of pathological LH dynamics, and has the potential to improve our understanding of the biomechanical mechanisms and treatment of primary MR.
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Affiliation(s)
- Andrés Caballero
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - Wenbin Mao
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - Raymond McKay
- Cardiology and Cardiac Surgery, The Hartford Hospital, Hartford, Connecticut, USA
| | - Charles Primiano
- Cardiology and Cardiac Surgery, The Hartford Hospital, Hartford, Connecticut, USA
| | - Sabet Hashim
- Cardiology and Cardiac Surgery, The Hartford Hospital, Hartford, Connecticut, USA
| | - Wei Sun
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA.
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Imasaka KI, Tayama E, Tomita Y. Left ventricular performance early after repair for posterior mitral leaflet prolapse: Chordal replacement versus leaflet resection. J Thorac Cardiovasc Surg 2015; 150:538-45. [DOI: 10.1016/j.jtcvs.2015.06.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 05/19/2015] [Accepted: 06/06/2015] [Indexed: 10/23/2022]
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Gunes HM, Guler GB, Guler E, Demir GG, Hatipoglu S, Zehir R, Kizilirmak F, Karaca O, Esen AM, Barutcu I, Turkmen MM, Can MM, Serebruany VL. Impact of valve surgery on serum osteopontin levels in patients with mitral regurgitation. Cardiology 2015; 130:82-6. [PMID: 25592683 DOI: 10.1159/000368299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Accepted: 08/15/2014] [Indexed: 11/19/2022]
Abstract
OBJECTIVE Osteopontin (OPN), a sialoprotein present within atherosclerotic lesions, especially in calcified plaques, is linked to the progression of coronary artery disease and heart failure. We assessed the impact of valve surgery on serum OPN and left ventricular (LV) function in patients with mitral regurgitation (MR). METHODS Thirty-two patients with severe MR scheduled for surgery were included in the study. Echocardiography markers were assessed preoperatively and at 3 months following the surgery and matched with the serum OPN levels. RESULTS Valve surgery was associated with a reduction of the ejection fraction (EF) from 55.2 ± 6.3 to 48.8 ± 7.1% after surgery, p < 0.001. Following surgery, the OPN level was significantly higher than preoperatively (mean 245, range 36-2,284 ng/ml vs. 76, 6-486 ng/ml, p = 0.007). Preoperative OPN exhibited a slight negative correlation with the EF (r = -0.35, p = 0.04), and a moderate correlation with vena contracta (r = -0.38, p = 0.02). There were no other meaningful correlations between conventional echocardiographic parameters and OPN. CONCLUSION Following valve surgery due to severe MR, patients exhibited a decrease in EF and an increase in OPN levels. The assessment of preoperative OPN failed to strongly predict probable LV dysfunction.
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Affiliation(s)
- H M Gunes
- Cardiology Clinic, Medipol University, İstanbul, Turkey
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10
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Similar improvement of left ventricular performance after valve replacement for aortic stenosis with small aortic annuli among three different implantation techniques. Indian J Thorac Cardiovasc Surg 2014. [DOI: 10.1007/s12055-014-0311-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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11
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Cardiac energetics analysis after aortic valve replacement with 16-mm ATS mechanical valve. J Artif Organs 2014; 17:250-7. [PMID: 24859744 DOI: 10.1007/s10047-014-0769-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Accepted: 04/30/2014] [Indexed: 10/25/2022]
Abstract
The 16-mm ATS mechanical valve is one of the smallest prosthetic valves used for aortic valve replacement (AVR) in patients with a very small aortic annulus, and its clinical outcomes are reportedly satisfactory. Here, we analyzed the left ventricular (LV) performance after AVR with the 16-mm ATS mechanical valve, based on the concept of cardiac energetics analysis. Eleven patients who underwent AVR with the 16-mm ATS mechanical valve were enrolled in this study. All underwent echocardiographic examination at three time points: before AVR, approximately 1 month after AVR, and approximately 1 year after AVR. LV contractility (end-systolic elastance [Ees]), afterload (effective arterial elastance [Ea]), and efficiency (ventriculoarterial coupling [Ea/Ees] and the stroke work to pressure-volume area ratio [SW/PVA]) were noninvasively measured by echocardiographic data and blood pressure measurement. Ees transiently decreased after AVR and then recovered to the pre-AVR level at the one-year follow-up. Ea significantly decreased in a stepwise manner. Consequently, Ea/Ees and SW/PVA were also significantly improved at the one-year follow-up compared with those before AVR. The midterm LV performance after AVR with the 16-mm ATS mechanical valve was satisfactory. AVR with the 16-mm ATS mechanical valve is validated as an effective treatment for patients with a very small aortic annulus. The cardiac energetics variables, coupling with the conventional hemodynamic variables, can contribute to a better understanding of the patients' clinical conditions, and those may serve as promising indices of the cardiac function.
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Tanoue Y, Oishi Y, Sonoda H, Nishida T, Nakashima A, Tominaga R. Left ventricular performance after aortic valve replacement in patients with low ejection fraction. J Artif Organs 2013; 16:443-50. [PMID: 24036623 DOI: 10.1007/s10047-013-0730-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Accepted: 08/27/2013] [Indexed: 11/27/2022]
Affiliation(s)
- Yoshihisa Tanoue
- Department of Cardiovascular Surgery, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan,
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Guarracino F, Ferro B, Baldassarri R, Bertini P, Forfori F, Giannini C, Di Bello V, Petronio AS. Non invasive evaluation of cardiomechanics in patients undergoing MitrClip procedure. Cardiovasc Ultrasound 2013; 11:13. [PMID: 23642140 PMCID: PMC3651274 DOI: 10.1186/1476-7120-11-13] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Accepted: 04/26/2013] [Indexed: 11/28/2022] Open
Abstract
Background In the last recent years a new percutaneous procedure, the MitraClip, has been validated for the treatment of mitral regurgitation. MitraClip procedure is a promising alternative for patients unsuitable for surgery as it reduces the risk of death related to surgery ensuring a similar result. Few data are present in literature about the variation of hemodynamic parameters and ventricular coupling after Mitraclip implantation. Methods Hemodynamic data of 18 patients enrolled for MitraClip procedure were retrospectively reviewed and analyzed. Echocardiographic measurements were obtained the day before the procedure (T0) and 21 ± 3 days after the procedure (T1), including evaluation of Ejection Fraction, mitral valve regurgitation severity and mechanism, forward Stroke Volume, left atrial volume, estimated systolic pulmonary pressure, non invasive echocardiographic estimation of single beat ventricular elastance (Es(sb)), arterial elastance (Ea) measured as systolic pressure • 0.9/ Stroke Volume, ventricular arterial coupling (Ea/Es(sb) ratio). Data were expressed as median and interquartile range. Measures obtained before and after the procedure were compared using Wilcoxon non parametric test for paired samples. Results Mitraclip procedure was effective in reducing regurgitation. We observed an amelioration of echocardiographic parameters with a reduction of estimated systolic pulmonary pressure (45 to 37,5 p = 0,0002) and left atrial volume (110 to 93 p = 0,0001). Despite a few cases decreasing in ejection fraction (37 to 35 p = 0,035), the maintained ventricular arterial coupling after the procedure (P = 0,67) was associated with an increasing in forward stroke volume (60,3 to 78 p = 0,05). Conclusion MitraClip is effective in reducing mitral valve regurgitation and determines an amelioration of hemodynamic parameters with preservation of ventricular arterial coupling.
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Affiliation(s)
- Fabio Guarracino
- Department of Cardiothoracic Anesthesia and Intensive Care Medicine, Azienda Ospedaliero Universitaria Pisana, Via Paradisa 2, 56123, Italy.
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