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Liang LW, Ladanyi A, Kennel PJ, Axsom KM, Sayer GT, Takeda K, Sekulic M, Uriel N, Drakos S, Colombo PC, Yuzefpolskaya M. Myocardial Recovery With HeartMate 3 Left Ventricular Assist Device: An Attainable Goal That Needs Better Precision. ASAIO J 2024; 70:e65-e68. [PMID: 37963291 DOI: 10.1097/mat.0000000000002099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023] Open
Abstract
Despite advances in our understanding of myocardial recovery among left ventricular assist device (LVAD) patients, with 10-30% of patients achieving substantial myocardial improvement, the rates of LVAD support cessation remain extremely low (1-2%). These numbers are in stark contrast to clinical trial data where successful LVAD cessation is reported in up to 47% of patients. The majority of LVAD programs lack structured recovery programs and targeted protocols, likely underscoring the heterogeneity that exists among LVAD patients with myocardial recovery. This perspective summarizes the current medical and surgical challenges with respect to 1) identifying the appropriate candidates for LVAD cessation; 2) methods to wean LVAD support; 3) reviewing surgical techniques for cessation of current generation HeartMate 3 LVAD; and 4) approaching shared decision making for LVAD cessation between patients and providers given the uncertainties that remain in the field.
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Affiliation(s)
- Lusha W Liang
- From the Division of Cardiology, Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Annamaria Ladanyi
- From the Division of Cardiology, Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Peter J Kennel
- From the Division of Cardiology, Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Kelly M Axsom
- From the Division of Cardiology, Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Gabriel T Sayer
- From the Division of Cardiology, Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Koji Takeda
- Division of Thoracic and Cardiac Surgery, Department of Surgery, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Miroslav Sekulic
- Department of Pathology and Cell Biology, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Nir Uriel
- From the Division of Cardiology, Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Stavros Drakos
- Department of Medicine, Division of Cardiovascular Medicine & Nora Eccles Harrison Cardiovascular Research and Training Institute, University of Utah School of Medicine, Salt Lake City, Utah
| | - Paolo C Colombo
- From the Division of Cardiology, Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Melana Yuzefpolskaya
- From the Division of Cardiology, Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, New York
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2
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Vu V, Rossini L, del Alamo JC, Dembitsky W, Gray RA, May-Newman K. Benchtop Models of Patient-Specific Intraventricular Flow During Heart Failure and LVAD Support. J Biomech Eng 2023; 145:111010. [PMID: 37565996 PMCID: PMC10777504 DOI: 10.1115/1.4063147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 08/01/2023] [Accepted: 08/03/2023] [Indexed: 08/12/2023]
Abstract
The characterization of intraventricular flow is critical to evaluate the efficiency of fluid transport and potential thromboembolic risk but challenging to measure directly in advanced heart failure (HF) patients with left ventricular assist device (LVAD) support. The study aims to validate an in-house mock loop (ML) by simulating specific conditions of HF patients with normal and prosthetic mitral valves (MV) and LVAD patients with small and dilated left ventricle volumes, then comparing the flow-related indices result of vortex parameters, residence time (RT), and shear-activation potential (SAP). Patient-specific inputs for the ML studies included heart rate, end-diastolic and end-systolic volumes, ejection fraction, aortic pressure, E/A ratio, and LVAD speed. The ML effectively replicated vortex development and circulation patterns, as well as RT, particularly for HF patient cases. The LVAD velocity fields reflected altered flow paths, in which all or most incoming blood formed a dominant stream directing flow straight from the mitral valve to the apex. RT estimation of patient and ML compared well for all conditions, but SAP was substantially higher in the LVAD cases of the ML. The benchtop system generated comparable and reproducible hemodynamics and fluid dynamics for patient-specific conditions, validating its reliability and clinical relevance. This study demonstrated that ML is a suitable platform to investigate the fluid dynamics of HF and LVAD patients and can be utilized to investigate heart-implant interactions.
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Affiliation(s)
- Vi Vu
- Bioengineering Program, Department of Mechanical Engineering, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182;Division of Biomedical Physics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD 20993
| | - Lorenzo Rossini
- Mechanical and Aerospace Engineering Department, University of California, San Diego 9500 Gilman Drive, La Jolla, CA 92093
| | - Juan C. del Alamo
- Center for Cardiovascular Biology & Mechanical Engineering Department, University of Washington, 1400 NE Campus Parkway, Seattle, WA 98195
| | - Walter Dembitsky
- Cardiothoracic Surgery, Mechanical Assist Program, Sharp Memorial Hospital, San Diego 7901 Frost Street, San Diego, CA 92123
| | - Richard A. Gray
- Division of Biomedical Physics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD 20993
| | - Karen May-Newman
- Bioengineering Program, Department of Mechanical Engineering, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182
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Elbayomi M, Weyand M, Seitz T, Heim C, Steger K, Tandler R. Recovery of a dilated left ventricle after cessation of cocaine and HVAD™ explantation using a titanium plug. J Card Surg 2022; 37:5551-5555. [PMID: 36345682 DOI: 10.1111/jocs.17135] [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: 08/10/2022] [Revised: 10/01/2022] [Accepted: 10/23/2022] [Indexed: 11/11/2022]
Abstract
The ultimate goal in the treatment of end-stage heart failure is the recovery of cardiac function following mechanical assistance of the left ventricle. The HVAD™ pump (HeartWare Inc.) left ventricular assist device (LVAD) can be explanted without resternotomy. This article demonstrates that the use of a custom-made mechanical plug (manufactured by INNOVO Solutions GmbH), which can be inserted into the LVAD's sewing ring, is feasible. This mechanical plug explicitly designed for device explantation is a viable alternative to the current standard of care. This article adopts a less invasive technique to explant the pump. The following case illustrates this technique.
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Affiliation(s)
- Mohamed Elbayomi
- Department of Cardiac Surgery, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Michael Weyand
- Department of Cardiac Surgery, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Timo Seitz
- Department of Cardiac Surgery, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Christian Heim
- Department of Cardiac Surgery, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Katrin Steger
- Department of Cardiac Surgery, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Rene Tandler
- Department of Cardiac Surgery, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
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Rodenas-Alesina E, Brahmbhatt DH, Rao V, Salvatori M, Billia F. Prediction, prevention, and management of right ventricular failure after left ventricular assist device implantation: A comprehensive review. Front Cardiovasc Med 2022; 9:1040251. [PMID: 36407460 PMCID: PMC9671519 DOI: 10.3389/fcvm.2022.1040251] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 10/18/2022] [Indexed: 08/26/2023] Open
Abstract
Left ventricular assist devices (LVADs) are increasingly common across the heart failure population. Right ventricular failure (RVF) is a feared complication that can occur in the early post-operative phase or during the outpatient follow-up. Multiple tools are available to the clinician to carefully estimate the individual risk of developing RVF after LVAD implantation. This review will provide a comprehensive overview of available tools for RVF prognostication, including patient-specific and right ventricle (RV)-specific echocardiographic and hemodynamic parameters, to provide guidance in patient selection during LVAD candidacy. We also offer a multidisciplinary approach to the management of early RVF, including indications and management of right ventricular assist devices in this setting to provide tools that help managing the failing RV.
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Affiliation(s)
- Eduard Rodenas-Alesina
- Mechanical Circulatory Support Program, Peter Munk Cardiac Center, University Health Network, Toronto, ON, Canada
- Ted Roger’s Center for Heart Research, University Health Network, Toronto, ON, Canada
- Department of Cardiology, Vall d’Hebron University Hospital, Barcelona, Spain
| | - Darshan H. Brahmbhatt
- Mechanical Circulatory Support Program, Peter Munk Cardiac Center, University Health Network, Toronto, ON, Canada
- Ted Roger’s Center for Heart Research, University Health Network, Toronto, ON, Canada
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Vivek Rao
- Mechanical Circulatory Support Program, Peter Munk Cardiac Center, University Health Network, Toronto, ON, Canada
- Ted Roger’s Center for Heart Research, University Health Network, Toronto, ON, Canada
| | - Marcus Salvatori
- Department of Anesthesia, University Health Network, Toronto, ON, Canada
| | - Filio Billia
- Mechanical Circulatory Support Program, Peter Munk Cardiac Center, University Health Network, Toronto, ON, Canada
- Ted Roger’s Center for Heart Research, University Health Network, Toronto, ON, Canada
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Dandel M. Transplantation versus Long-Term Left- or Bi-Ventricular Assist Device Implantation: Major Challenges for Decision-Makers. Rev Cardiovasc Med 2022; 23:321. [PMID: 39077694 PMCID: PMC11262372 DOI: 10.31083/j.rcm2309321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 09/09/2022] [Indexed: 07/31/2024] Open
Affiliation(s)
- Michael Dandel
- German Centre for Cardiovascular Research (DZHK), Partner Site Berlin, 10785 Berlin, Germany
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Dandel M. Role of Echocardiography in the Management of Patients with Advanced (Stage D) Heart Failure Related to Nonischemic Cardiomyopathy. Rev Cardiovasc Med 2022; 23:214. [PMID: 39077176 PMCID: PMC11273760 DOI: 10.31083/j.rcm2306214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 05/10/2022] [Accepted: 05/17/2022] [Indexed: 07/31/2024] Open
Abstract
Echocardiography (ECHO) is indispensable for evaluation of patients with terminal chronic heart failure (HF) who require transplantation or mechanical circulatory support by a left- or biventricular assist device (LVAD or BiVAD, respectively). In LVAD candidates, ECHO represents the first-line investigation necessary for a timely discovery of heart-related risk factors for potentially life-threatening post-operative adverse events, including identification of patients who necessitate a biventricular support. ECHO is also required for intra-operative guiding of VAD implantation and finding of the most appropriate setting of the device for an optimal ventricular unloading, postoperative surveillance of the VAD support, and monitoring of the RV changes in LVAD recipients. Thanks to the ECHO, which has decisively contributed to the proof that prolonged VAD support can facilitate cardiac reverse remodeling and functional improvement to levels which allow successful weaning of carefully selected patients from LVAD or BiVAD, the previous opinion that chronic non-ischemic cardiomyopathy (NICMP) is irreversible could be refuted. In patients with normalized and stable right heart catheter-derived hemodynamic parameters obtained at short-term interruptions of VAD support, ECHO has proved able to predict post-weaning long-term freedom from HF recurrence in patients with pre-implant terminal chronic NICMP. The purpose of this article is to offer an actualized theoretical and practical support for clinicians engaged in this particularly challenging and topical issue especially due to the new practical aspects which have emerged in conjunction with the growing use of long-term ventricular assist devices as bridge-to-transplantation or as destination therapy, as well as the increasing evidence that, in some patients, such VAD can become a bridge-to-recovery, allowing the removal of the device after a longer support time.
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Affiliation(s)
- Michael Dandel
- German Centre for Heart and Circulatory Research (DZHK) Partner Site Berlin, 10785 Berlin, Germany
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Potapov EV, Politis N, Karck M, Weyand M, Tandler R, Walther T, Emrich F, Reichenspurrner H, Bernhardt A, Barten MJ, Svenarud P, Gummert J, Sef D, Doenst T, Tsyganenko D, Loforte A, Schoenrath F, Falk V. Results from a multicentre evaluation of plug use for left ventricular assist device explantation. Interact Cardiovasc Thorac Surg 2021; 34:683-690. [PMID: 34888681 PMCID: PMC9026212 DOI: 10.1093/icvts/ivab344] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 07/21/2021] [Accepted: 10/29/2021] [Indexed: 12/01/2022] Open
Affiliation(s)
- Evgenij V Potapov
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
| | | | - Matthias Karck
- Department of Cardiac Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Michael Weyand
- Department of Cardiac Surgery, University of Erlangen-Nuremberg, Erlangen, Germany
| | - René Tandler
- Department of Cardiac Surgery, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Thomas Walther
- Department of Cardiac Surgery, Johann-Wolfgang-Goethe University, Frankfurt, Germany
| | - Fabian Emrich
- Department of Cardiac Surgery, Johann-Wolfgang-Goethe University, Frankfurt, Germany
| | - Hermann Reichenspurrner
- Department of Cardiovascular Surgery, University Heart and Vascular Center Hamburg, Hamburg, Germany
| | - Alexander Bernhardt
- Department of Cardiovascular Surgery, University Heart and Vascular Center Hamburg, Hamburg, Germany
| | - Markus J Barten
- Department of Cardiovascular Surgery, University Heart and Vascular Center Hamburg, Hamburg, Germany
| | - Peter Svenarud
- Department of Cardiothoracic Surgery, Karolinska University Hospital, Stockholm, Sweden
| | - Jan Gummert
- Department of Thoracic and Cardiovascular Surgery, Heart and Diabetes Center NRW Ruhr-University of Bochum, Bad Oeynhausen, Germany
| | - Davorin Sef
- Department of Cardiothoracic Transplantation and Mechanical Circulatory Support, Royal Brompton and Harefield NHS Foundation Trust, Harefield Hospital, London, UK
| | - Torsten Doenst
- Department of Cardiothoracic Surgery, Jena University Hospital, Friedrich Schiller University of Jena, Jena, Germany
| | - Dmytro Tsyganenko
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
| | - Antonio Loforte
- Division of Cardiac Surgery, IRCCS Azienda Ospedaliero-Universitaria di Bologna, S. Orsola University Hospital, Bologna, Italy
| | - Felix Schoenrath
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
| | - Volkmar Falk
- Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Berlin, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany.,Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Cardiovascular Surgery, Berlin, Germany.,Department of Health Sciences and Technology, Eidgenössiche Technische Hochschule Zürich, Translational Cardiovascular Technology, Zurich, Switzerland
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Ultrasound Assessment in Cardiogenic Shock Weaning: A Review of the State of the Art. J Clin Med 2021; 10:jcm10215108. [PMID: 34768629 PMCID: PMC8585073 DOI: 10.3390/jcm10215108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/26/2021] [Accepted: 10/29/2021] [Indexed: 12/23/2022] Open
Abstract
Cardiogenic shock (CS) is associated with a high in-hospital mortality despite the achieved advances in diagnosis and management. Invasive mechanical ventilation and circulatory support constitute the highest step in cardiogenic shock therapy. Once established, taking the decision of weaning from such support is challenging. Intensive care unit (ICU) bedside echocardiography provides noninvasive, immediate, and low-cost monitoring of hemodynamic parameters such as cardiac output, filling pressure, structural disease, congestion status, and device functioning. Supplemented by an ultrasound of the lung and diaphragm, it is able to provide valuable information about signs suggesting a weaning failure. The aim of this article was to review the state of the art taking into account current evidence and knowledge on ICU bedside ultrasound for the evaluation of weaning from mechanical ventilation and circulatory support in cardiogenic shock.
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Oleynikov VE, Averyanova EV, Oreshkina AA, Burko NV, Barmenkova YA, Golubeva AV, Galimskaya VA. A Multivariate Model to Predict Chronic Heart Failure after Acute ST-Segment Elevation Myocardial Infarction: Preliminary Study. Diagnostics (Basel) 2021; 11:1925. [PMID: 34679623 PMCID: PMC8534636 DOI: 10.3390/diagnostics11101925] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/21/2021] [Accepted: 10/04/2021] [Indexed: 12/27/2022] Open
Abstract
A multivariate model for predicting the risk of decompensated chronic heart failure (CHF) within 48 weeks after ST-segment elevation myocardial infarction (STEMI) has been developed and tested. METHODS The study included 173 patients with acute STEMI aged 51.4 (95% confidence interval (CI): 42-61) years. Two-dimensional (2D) speckle-tracking echocardiography (STE) has been performed on the 7th-9th days, and at the 12th, 24th, and 48th weeks after the index event with the analysis of volumetric parameters and values for global longitudinal strain (GLS), global circumferential strain (GCS), and global radial strain (GRS). A 24-h ECG monitoring (24 h ECG) of the electrocardiogram (ECG) to assess heart rate turbulence (HRT) has been performed on the 7th-9th days of STEMI. The study involved two stages of implementation. At the first stage, a multivariate model to assess the risk of CHF progression within 48 weeks after STEMI has been built on the basis of examination and follow-up data for 113 patients (group M). At the second stage, the performance of the model has been assessed based on a 48-week follow-up of 60 patients (group T). RESULTS A multivariate regression model for CHF progression in STEMI patients has been created based on the results of the first stage. It included the following parameters: HRT, left ventricular (LV) end-systolic dimension (ESD), and GLS. The contribution of each factor for the relative risk (RR) of decompensated CHF has been found: 3.92 (95% CI: 1.66-9.25) (p = 0.0018) for HRT; 1.04 (95% CI: 1.015-1.07) (p = 0.0027) for ESD; 0.9 (95% CI: 0.815-0.98) (p = 0.028) for GLS. The diagnostic efficiency of the proposed model has been evaluated at the second stage. It appeared to have a high specificity of 83.3%, a sensitivity of 95.8%, and a diagnostic accuracy of 93.3%. CONCLUSION The developed model for predicting CHF progression within 48 weeks after STEMI has a high diagnostic efficiency and can be used in early stages of myocardial infarction to stratify the risk of patients.
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Affiliation(s)
| | | | | | - Nadezhda Valerievna Burko
- Department of Therapy, Medical Institute, Penza State University, 440026 Penza, Russia; (V.E.O.); (E.V.A.); (A.A.O.); (Y.A.B.); (A.V.G.); (V.A.G.)
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Roscoe A, Zochios V. Echocardiography in Weaning Right Ventricular Mechanical Circulatory Support: Are We Measuring the Right Stuff? J Cardiothorac Vasc Anesth 2021; 36:362-366. [PMID: 34688542 DOI: 10.1053/j.jvca.2021.09.045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 09/27/2021] [Indexed: 11/11/2022]
Affiliation(s)
- Andrew Roscoe
- Department of Anesthesiology, Singapore General Hospital, Singapore; Department of Cardiothoracic Anesthesia, National Heart Centre Singapore, Singapore.
| | - Vasileios Zochios
- Department of Critical Care Medicine and ECMO Unit, University Hospitals of Leicester National Health Service Trust, Glenfield Hospital, Leicester, United Kingdom.
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