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den Haan MC, Palmen M, Egorova AD, Hazekamp MG. Glenn shunt as a rescue strategy for acute right ventricular failure after right ventricular myocardial infarction. Eur J Cardiothorac Surg 2024; 65:ezae157. [PMID: 38603625 PMCID: PMC11076147 DOI: 10.1093/ejcts/ezae157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 04/01/2024] [Accepted: 04/10/2024] [Indexed: 04/13/2024] Open
Abstract
We present the case of a 52-year-old woman with cardiogenic shock and refractory right ventricular failure due to spontaneous dissection of the right coronary artery. She remained dependent on mechanical support for several weeks. Both a right ventricular assist device implant and a bidirectional cavopulmonary anastomosis were explored as long-term support options. A history of malignancy and possible right ventricular functional recovery resulted in a decision in favour of the bidirectional cavopulmonary anastomosis and concomitant tricuspid valve annuloplasty. Postoperatively her clinical condition improved significantly, and she could be discharged home. Echocardiography showed normalization of right ventricular dimensions and slight improvement of right ventricular function.
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Affiliation(s)
- Melina C den Haan
- Department of Cardiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Meindert Palmen
- Department of Cardiothoracic Surgery, Leiden University Medical Center, Leiden, the Netherlands
| | - Anastasia D Egorova
- Department of Cardiology, Leiden University Medical Center, Leiden, the Netherlands
- CAHAL, Center for Congenital Heart Disease Amsterdam Leiden, Leiden University Medical Center, Leiden, the Netherlands
| | - Mark G Hazekamp
- Department of Cardiothoracic Surgery, Leiden University Medical Center, Leiden, the Netherlands
- CAHAL, Center for Congenital Heart Disease Amsterdam Leiden, Leiden University Medical Center, Leiden, the Netherlands
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2
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Kwon JH, Skidmore SH, Bhandari K, Carnicelli AP, Yourshaw JP, Shorbaji K, Kilic A. Waitlist and transplant outcomes in heart transplant candidates bridged with temporary endovascular right ventricular assist devices. J Heart Lung Transplant 2024; 43:369-378. [PMID: 37951321 DOI: 10.1016/j.healun.2023.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 10/20/2023] [Accepted: 11/06/2023] [Indexed: 11/13/2023] Open
Abstract
BACKGROUND Advances in mechanical circulatory support and changes in allocation policy have shifted waitlisting practices for heart transplantation (HT) in the United States. This analysis reports waitlist and transplant outcomes among HT candidates bridged with temporary endovascular right ventricular assist devices (tRVADs). METHODS Patients awaiting HT from 2008 to 2022 in the United Network of Organ Sharing registry were grouped by the presence of tRVAD while waitlisted and propensity matched. Waitlist outcomes were HT and a competing outcome of death/deterioration requiring waitlist inactivation. Competing-risks regression was used to model waitlist outcomes. Subanalyses were performed to compare waitlist outcomes among patients with durable and temporary left ventricular assist devices (LVADs) with and without concomitant tRVADs. One-year posttransplant mortality was estimated using Kaplan-Meier analysis. RESULTS Of 41,507 HT candidates, 133 (0.3%) had tRVADs. After propensity matching, patients with tRVAD had a similar likelihood of HT and an elevated hazard for death/deterioration (hazard ratio 2.2, 95% confidence interval 1.4-3.2, p < 0.001) compared to those without tRVAD. Most patients with tRVAD (84%) had concomitant LVADs. tRVAD was associated with an elevated risk for deterioration/death among those with temporary LVADs but not durable LVADs. For patients undergoing HT, tRVAD was associated with an increased risk for 1-year mortality compared to propensity-matched recipients. CONCLUSIONS Bridging with tRVAD is uncommon and primarily used in patients requiring biventricular support. tRVADs are associated with waitlist inactivation or death, particularly with concomitant temporary LVAD support. As temporary devices are increasingly used as a bridge to HT, outcomes of patients with tRVADs should inform future allocation policy, particularly for candidates with biventricular failure.
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Affiliation(s)
- Jennie H Kwon
- Division of Cardiothoracic Surgery, Medical University of South Carolina, Charleston, South Carolina
| | - Savannah H Skidmore
- Division of Cardiothoracic Surgery, Medical University of South Carolina, Charleston, South Carolina
| | - Krishna Bhandari
- Division of Cardiothoracic Surgery, Medical University of South Carolina, Charleston, South Carolina
| | - Anthony P Carnicelli
- Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina
| | - Jeffrey P Yourshaw
- Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina
| | - Khaled Shorbaji
- Division of Cardiothoracic Surgery, Medical University of South Carolina, Charleston, South Carolina
| | - Arman Kilic
- Division of Cardiothoracic Surgery, Medical University of South Carolina, Charleston, South Carolina.
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3
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Chen LL, Zuma D. Right Ventricular Failure: A Concise Review. Crit Care Nurs Q 2024; 47:9-13. [PMID: 38031303 DOI: 10.1097/cnq.0000000000000486] [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: 12/01/2023]
Abstract
Right ventricular failure (RVF) is a critical condition that significantly impacts morbidity and mortality in affected patients. This review article aims to provide a comprehensive understanding of RVF by discussing its background, etiology, pathophysiology, clinical presentation, diagnostic studies, medical treatment, and mechanical assistive devices.
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Affiliation(s)
- Leon L Chen
- Columbia University School of Nursing, New York City, New York (Drs Chen and Zuma); Critical Care Center, Department of Anesthesiology and Critical Care Medicine, Memorial Sloan Kettering Cancer Center, New York City, New York (Dr Chen); and Department of Medicine, Cardiology, Columbia University Irving Medical Center, New York City, New York (Dr Zuma)
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4
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Aranda-Michel E, Toubat O, Brennan Z, Bhagat R, Siki M, Paluri S, Duda M, Han J, Komlo C, Blitzer D, Louis C, Pruitt E, Sultan I. A primer for students regarding advanced topics in cardiothoracic surgery, part 2: Primer 7 of 7. JTCVS OPEN 2023; 14:362-371. [PMID: 37425452 PMCID: PMC10329042 DOI: 10.1016/j.xjon.2023.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 04/02/2023] [Accepted: 04/08/2023] [Indexed: 07/11/2023]
Affiliation(s)
- Edgar Aranda-Michel
- Department of Cardiothoracic Surgery, University of Pittsburgh, Pittsburgh, Pa
| | - Omar Toubat
- Department of Cardiac Surgery, Keck Medicine of University of Southern California, Los Angeles, Calif
| | - Zach Brennan
- Michigan State University College of Osteopathic Medicine, Michigan State University, East Lansing, Mich
| | - Rohun Bhagat
- Department of Thoracic and Cardiovascular Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Mary Siki
- Department of Cardiothoracic Surgery, Tulane University, New Orleans, La
| | - Sarin Paluri
- Department of Cardiothoracic Surgery, Chicago College of Osteopathic Medicine, Midwestern University, Chicago, Ill
| | - Matthew Duda
- Department of Cardiothoracic Surgery, Stanford University, Stanford, Calif
| | - Jason Han
- Department of Cardiac Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pa
| | - Caroline Komlo
- Department of Cardiothoracic Surgery, Yale University, New Haven, Conn
| | - David Blitzer
- Department of Cardiothoracic Surgery, Columbia University, New York, NY
| | - Clauden Louis
- Department of Cardiothoracic Surgery, Brigham and Women's Hospital, Harvard University, Boston, Mass
| | - Eric Pruitt
- Department of Cardiothoracic Surgery, University of Florida, Gainesville, Fla
| | - Ibrahim Sultan
- Department of Cardiothoracic Surgery, University of Pittsburgh, Pittsburgh, Pa
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5
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James L, Smith DE. Supporting the "forgotten" ventricle: The evolution of percutaneous RVADs. Front Cardiovasc Med 2023; 9:1008499. [PMID: 36684567 PMCID: PMC9845717 DOI: 10.3389/fcvm.2022.1008499] [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: 07/31/2022] [Accepted: 11/30/2022] [Indexed: 01/06/2023] Open
Abstract
Right heart failure (RHF) can occur as the result of an acute or chronic disease process and is a challenging clinical condition for surgeons and interventionalists to treat. RHF occurs in approximately 0.1% of patients after cardiac surgery, in 2-3% of patients following heart transplantation, and in up to 42% of patients after LVAD implantation. Regardless of the cause, RHF portends high morbidity and mortality and is associated with longer hospital stays and higher healthcare costs. The mainstays of traditional therapy for severe RHF have included pharmacological support, such as inotropes and vasopressors, and surgical right ventricular (RV) assist devices. However, in recent years catheter-based mechanical circulatory support (MCS) strategies have offered novel solutions for addressing RHF without the morbidity of open surgery. This manuscript will review the pathophysiology of RHF, including the molecular underpinnings, gross structural mechanisms, and hemodynamic consequences. The evolution of techniques for supporting the right ventricle will be explored, with a focus on various institutional experiences with percutaneous ventricular assist devices.
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Do it "RIGHT": HeartMate 3 as Destination Therapy Right Ventricular Assist Device in a Patient With Arrhythmogenic Right Ventricular Cardiomyopathy. ASAIO J 2023; 69:e46-e48. [PMID: 35471649 DOI: 10.1097/mat.0000000000001746] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Isolated right ventricular failure presents a rare pathology and heart transplantation remains the treatment of choice. Because of the shortage of donor organs, alternative treatment options are required. However, current continuous-flow ventricular assist devices are designed and approved only for left ventricular support and right ventricular implantation usually presents a procedure of last resort. Herein, we present a successful implantation of the HeartMate 3 for isolated right ventricular support as destination therapy in a patient suffering from late-onset arrhythmogenic right ventricular cardiomyopathy.
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7
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Abstract
PURPOSE OF REVIEW Right ventricular (RV) failure is increasingly recognized as a major cause of morbidity and mortality. When RV failure is refractory to medical therapy, escalation to right-sided mechanical circulatory support (MCS) should be considered. In this review, we begin by recapitulating the hemodynamics of RV failure, then we delve into current and future right-sided MCS devices and describe their hemodynamic profiles. RECENT FINDINGS The field of temporary right-sided MCS continues to expand, with evolving strategies and new devices actively under development. All right-sided MCS devices bypass the RV, with each bypass configuration conferring a unique hemodynamic profile. Devices that aspirate blood directly from the RV, as opposed to the RA or the IVC, have more favorable hemodynamics and more effective RV unloading. There has been a growing interest in single-access MCS devices which do not restrict patient mobility. Additionally, a first-of-its-kind percutaneous, pulsatile, right-sided MCS device (PERKAT RV) is currently undergoing investigation in humans. Prompt recognition of refractory RV failure and deployment of right-sided MCS can improve outcomes. The field of right-sided MCS is rapidly evolving, with ongoing efforts dedicated towards developing novel temporary devices that are single access, allow for patient mobility, and directly unload the RV, as well as more durable devices.
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8
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Bonios MJ, Armenis I, Kogerakis N, Thodou A, Gkouziouta A, Koliopoulou A, Kaklamanis L, Chamogeorgakis T, Drakos SG, Adamopoulos SN. Phenotype Characterization and Course of Patients With Arrhythmogenic Right Ventricular Cardiomyopathy and Biventricular Advanced Heart Failure: A Report of 3 Cases. Transplant Proc 2022; 54:2347-2351. [PMID: 36195497 DOI: 10.1016/j.transproceed.2022.08.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/24/2022] [Accepted: 08/26/2022] [Indexed: 11/15/2022]
Abstract
BACKGROUND Arrhythmogenic right ventricular cardiomyopathy (ARVC) may be complicated by heart failure. Management of advanced heart failure in this context is challenging. METHODS We reviewed our center's experience with advanced heart failure therapies in patients with ARVC. Three rapidly deteriorating patients with ARVC with biventricular heart failure were found. Their management and outcomes are presented. Data on ventricular fibrosis were available in 2 of them and are also included. RESULTS The first patient underwent initially successful paracorporeal pulsatile biventricular assist device (BiVAD) implantation. However, a large ischemic stroke occurred 2 weeks later, and the patient died after 2 months. The second patient underwent urgent BiVAD implantation after extracorporeal membrane oxygenation support because of cardiogenic shock, but his course was complicated by multiorgan failure due to systemic infection and the patient died. The last patient, being at Interagency Registry for Mechanically Assisted Circulatory Support 3-4 profile, underwent heart transplant with uneventful recovery. Extensive fibrosis was present in both ventricles of 2 patients undergoing pathology examination. CONCLUSIONS Patients with ARVC and advanced biventricular heart failure are characterized by extensive ventricular fibrosis and considerable risk, but data on their management are limited. Biventricular circulatory support is associated with suboptimal outcomes, and prioritization for heart transplant seems preferable.
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Affiliation(s)
- Michael J Bonios
- Heart Failure and Transplant Units, Onassis Cardiac Surgery Center, Athens, Greece.
| | - Iakovos Armenis
- Heart Failure and Transplant Units, Onassis Cardiac Surgery Center, Athens, Greece
| | - Nektarios Kogerakis
- Heart Failure and Transplant Units, Onassis Cardiac Surgery Center, Athens, Greece
| | - Aspasia Thodou
- Division of Cardiovascular Medicine, University of Utah Health and School of Medicine, Salt Lake City, Utah
| | - Angeliki Gkouziouta
- Heart Failure and Transplant Units, Onassis Cardiac Surgery Center, Athens, Greece
| | - Antigoni Koliopoulou
- Heart Failure and Transplant Units, Onassis Cardiac Surgery Center, Athens, Greece
| | - Loukas Kaklamanis
- Heart Failure and Transplant Units, Onassis Cardiac Surgery Center, Athens, Greece
| | | | - Stavros G Drakos
- Division of Cardiovascular Medicine, University of Utah Health and School of Medicine, Salt Lake City, Utah
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9
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Kuroda T, Miyagi C, Fukamachi K, Karimov JH. Mechanical circulatory support devices and treatment strategies for right heart failure. Front Cardiovasc Med 2022; 9:951234. [PMID: 36211548 PMCID: PMC9538150 DOI: 10.3389/fcvm.2022.951234] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 08/29/2022] [Indexed: 11/16/2022] Open
Abstract
The importance of right heart failure (RHF) treatment is magnified over the years due to the increased risk of mortality. Additionally, the multifactorial origin and pathophysiological mechanisms of RHF render this clinical condition and the choices for appropriate therapeutic target strategies remain to be complex. The recent change in the United Network for Organ Sharing (UNOS) allocation criteria of heart transplant may have impacted for the number of left ventricular assist devices (LVADs), but LVADs still have been widely used to treat advanced heart failure, and 4.1 to 7.4% of LVAD patients require a right ventricular assist device (RVAD). In addition, patients admitted with primary left ventricular failure often need right ventricular support. Thus, there is unmet need for temporary or long-term support RVAD implantation exists. In RHF treatment with mechanical circulatory support (MCS) devices, the timing of the intervention and prediction of duration of the support play a major role in successful treatment and outcomes. In this review, we attempt to describe the prevalence and pathophysiological mechanisms of RHF origin, and provide an overview of existing treatment options, strategy and device choices for MCS treatment for RHF.
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Affiliation(s)
- Taiyo Kuroda
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
| | - Chihiro Miyagi
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
| | - Kiyotaka Fukamachi
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
- Department of Biomedical Engineering, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, United States
| | - Jamshid H. Karimov
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
- Department of Biomedical Engineering, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, United States
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10
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Kanwar MK, Everett KD, Gulati G, Brener MI, Kapur NK. Epidemiology and management of right ventricular-predominant heart failure and shock in the cardiac intensive care unit. EUROPEAN HEART JOURNAL. ACUTE CARDIOVASCULAR CARE 2022; 11:584-594. [PMID: 35767583 DOI: 10.1093/ehjacc/zuac063] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 05/16/2022] [Indexed: 06/15/2023]
Abstract
Cardiogenic shock from left ventricular failure is a common presentation in the intensive care unit. In contrast, right ventricular (RV)-predominant heart failure (HF) causing shock is less well recognized. We review the epidemiology and mechanisms of RV-predominant HF and discuss pharmacologic and device-based approaches for the management of this challenging clinical problem.
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Affiliation(s)
- Manreet K Kanwar
- Department of Medicine, Cardiovascular Institute at Allegheny Health Network, Pittsburgh, PA, USA
| | - Kay D Everett
- Department of Medicine, The CardioVascular Center, Tufts Medical Center, 800 Washington Street, Box # 80, Boston, MA 02111, USA
| | - Gaurav Gulati
- Department of Medicine, The CardioVascular Center, Tufts Medical Center, 800 Washington Street, Box # 80, Boston, MA 02111, USA
| | - Michael I Brener
- Department of Medicine, Columbia University Medical Center, New York, NY, USA
| | - Navin K Kapur
- Department of Medicine, The CardioVascular Center, Tufts Medical Center, 800 Washington Street, Box # 80, Boston, MA 02111, USA
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11
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Tessari C, Castaldi B, Toscano G, Vida VL, Gerosa G, Padalino MA. Hybrid approach for management of end-stage heart failure in complex congenital heart disease. Int J Artif Organs 2022; 45:722-725. [PMID: 35762855 DOI: 10.1177/03913988221109285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Management of end-stage heart failure (ESHF) in children with congenital heart disease is challenging. We report a step-by-step hybrid procedure (transcatheter pulmonary valve and left mechanical assist device implantations) in a child with ESHF after repair of tetralogy of Fallot, as an effective bridge to transplant strategy.
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Affiliation(s)
- Chiara Tessari
- Cardiac Surgery Unit, Department of Cardio-Thoracic-Vascular Sciences and Public Health, University of Padova, Padova, Italy
| | - Biagio Castaldi
- Pediatric Cardiology Unit, Department of Women's and Children's Health, University of Padova, Padova, Italy
| | - Giuseppe Toscano
- Cardiac Surgery Unit, Department of Cardio-Thoracic-Vascular Sciences and Public Health, University of Padova, Padova, Italy
| | - Vladimiro L Vida
- Pediatric Cardiac Surgery Unit, Department of Cardio-Thoracic-Vascular Sciences and Public Health, University of Padova, Padova, Italy
| | - Gino Gerosa
- Cardiac Surgery Unit, Department of Cardio-Thoracic-Vascular Sciences and Public Health, University of Padova, Padova, Italy
| | - Massimo A Padalino
- Pediatric Cardiac Surgery Unit, Department of Cardio-Thoracic-Vascular Sciences and Public Health, University of Padova, Padova, Italy
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12
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Aktuelle Klassifikation und hämodynamisches Profil bei kardiogenem Schock. ZEITSCHRIFT FUR HERZ THORAX UND GEFASSCHIRURGIE 2022. [DOI: 10.1007/s00398-022-00507-9] [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]
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13
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Bhatia M, Jia S, Smeltz A, Kumar PA. Right Heart Failure Management: Focus on Mechanical Support Options. J Cardiothorac Vasc Anesth 2022; 36:3278-3288. [DOI: 10.1053/j.jvca.2022.02.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 02/16/2022] [Accepted: 02/17/2022] [Indexed: 11/11/2022]
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Potapov E, Starck C, Falk V, Eulert-Grehn JJ. Mechanical circulatory support: Technical tips for the implantation of a right ventricular assist device. JTCVS OPEN 2021; 8:37-40. [PMID: 36004163 PMCID: PMC9390364 DOI: 10.1016/j.xjon.2021.09.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 09/27/2021] [Indexed: 11/19/2022]
Affiliation(s)
- Evgenij Potapov
- Department of Cardiothoracic and Vascular Surgery, German Heart Center, Berlin, Germany
- German Center for Cardiovascular Research Partner Site, Berlin, Germany
- Address for reprints: Evgenij Potapov, MD, Department of Cardiothoracic and Vascular Surgery, German Center for Cardiovascular Research, Augustenburger Platz 1, 13353 Berlin, Germany.
| | - Christoph Starck
- Department of Cardiothoracic and Vascular Surgery, German Heart Center, Berlin, Germany
- German Center for Cardiovascular Research Partner Site, Berlin, Germany
| | - Volkmar Falk
- Department of Cardiothoracic and Vascular Surgery, German Heart Center, Berlin, Germany
- German Center for Cardiovascular Research Partner Site, Berlin, Germany
- Department of Cardiothoracic Surgery, Charité – Universitätsmedizin Berlin, Berlin, Germany
- Section of Translational Cardiovascular Technologies, Institute of Translational Medicine, Department of Health Sciences and Technology, Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
| | - Jaime-Jürgen Eulert-Grehn
- Department of Cardiothoracic and Vascular Surgery, German Heart Center, Berlin, Germany
- German Center for Cardiovascular Research Partner Site, Berlin, Germany
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15
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Wamala I, Payne CJ, Saeed MY, Bautista-Salinas D, Van Story D, Thalhofer T, Staffa SJ, Ghelani SJ, Del Nido PJ, Walsh CJ, Vasilyev NV. Importance of Preserved Tricuspid Valve Function for Effective Soft Robotic Augmentation of the Right Ventricle in Cases of Elevated Pulmonary Artery Pressure. Cardiovasc Eng Technol 2021; 13:120-128. [PMID: 34263419 PMCID: PMC8888489 DOI: 10.1007/s13239-021-00562-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 06/29/2021] [Indexed: 11/30/2022]
Abstract
Purpose In clinical practice, many patients with right heart failure (RHF) have elevated pulmonary artery pressures and increased afterload on the right ventricle (RV). In this study, we evaluated the feasibility of RV augmentation using a soft robotic right ventricular assist device (SRVAD), in cases of increased RV afterload. Methods In nine Yorkshire swine of 65–80 kg, a pulmonary artery band was placed to cause RHF and maintained in place to simulate an ongoing elevated afterload on the RV. The SRVAD was actuated in synchrony with the ventricle to augment native RV output for up to one hour. Hemodynamic parameters during SRVAD actuation were compared to baseline and RHF levels. Results Median RV cardiac index (CI) was 1.43 (IQR, 1.37–1.80) L/min/m2 and 1.26 (IQR 1.05–1.57) L/min/m2 at first and second baseline. Upon PA banding RV CI fell to a median of 0.79 (IQR 0.63–1.04) L/min/m2. Device actuation improved RV CI to a median of 0.87 (IQR 0.78–1.01), 0.85 (IQR 0.64–1.59) and 1.11 (IQR 0.67–1.48) L/min/m2 at 5 min (p = 0.114), 30 min (p = 0.013) and 60 (p = 0.033) minutes respectively. Statistical GEE analysis showed that lower grade of tricuspid regurgitation at time of RHF (p = 0.046), a lower diastolic pressure at RHF (p = 0.019) and lower mean arterial pressure at RHF (p = 0.024) were significantly associated with higher SRVAD effectiveness. Conclusions Short-term augmentation of RV function using SRVAD is feasible even in cases of elevated RV afterload. Moderate or severe tricuspid regurgitation were associated with reduced device effectiveness. Supplementary Information The online version contains supplementary material available at 10.1007/s13239-021-00562-7
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Affiliation(s)
- Isaac Wamala
- Department of Cardiac Surgery, Harvard Medical School, Boston Children's Hospital, 300 Longwood Ave, Boston, MA, 02115, USA. .,Clinic for Cardiovascular Surgery, Charité Universitätsmedizin, Berlin, Germany.
| | - Christopher J Payne
- Wyss Institute for Biologically Inspired Engineering, Boston, USA.,Harvard School of Engineering and Applied Sciences, Boston, USA
| | - Mossab Y Saeed
- Department of Cardiac Surgery, Harvard Medical School, Boston Children's Hospital, 300 Longwood Ave, Boston, MA, 02115, USA
| | - Daniel Bautista-Salinas
- Department of Cardiac Surgery, Harvard Medical School, Boston Children's Hospital, 300 Longwood Ave, Boston, MA, 02115, USA.,Industrial Engineering, Technical University of Cartagena, Murcia, Spain
| | - David Van Story
- Department of Cardiac Surgery, Harvard Medical School, Boston Children's Hospital, 300 Longwood Ave, Boston, MA, 02115, USA
| | | | - Steven J Staffa
- Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children's Hospital, Boston, USA
| | - Sunil J Ghelani
- Department of Cardiology, Boston Children's Hospital, Boston, MA, USA
| | - Pedro J Del Nido
- Department of Cardiac Surgery, Harvard Medical School, Boston Children's Hospital, 300 Longwood Ave, Boston, MA, 02115, USA
| | - Conor J Walsh
- Wyss Institute for Biologically Inspired Engineering, Boston, USA.,Harvard School of Engineering and Applied Sciences, Boston, USA
| | - Nikolay V Vasilyev
- Department of Cardiac Surgery, Harvard Medical School, Boston Children's Hospital, 300 Longwood Ave, Boston, MA, 02115, USA
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16
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Abstract
Right ventricular dysfunction presents unique challenges in patients with cardiopulmonary disease. When optimal medical therapy fails, mechanical circulatory support is considered. Devices can by classified according to whether they are deployed percutaneously or surgically, whether the pump is axial or centrifugal, whether the right ventricle is bypassed directly or indirectly, and whether the support is short term or long term. Each device has advantages and disadvantages. Acute mechanical circulatory support is a suitable temporizing strategy in advanced heart failure. Future research in right ventricular mechanical circulatory support will optimize device management, refine patient selection, and ultimately improve clinical outcomes.
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Affiliation(s)
- Akbarshakh Akhmerov
- Department of Cardiac Surgery, Smidt Heart Institute, Cedars-Sinai Medical Center, 127 S. San Vicente Boulevard, Suite A3105, Los Angeles, CA 90048, USA
| | - Danny Ramzy
- Department of Cardiac Surgery, Smidt Heart Institute, Cedars-Sinai Medical Center, 127 S. San Vicente Boulevard, Suite A3105, Los Angeles, CA 90048, USA.
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17
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Bickel TJ, Gunasekaran P, Parashara DK, Alpert MA. Mechanical Circulatory Support Prior to Heart Transplantation Predicts Early Post-Operative Stroke. Am J Med Sci 2021; 362:34-38. [PMID: 33785302 DOI: 10.1016/j.amjms.2021.03.008] [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: 09/21/2020] [Revised: 01/04/2021] [Accepted: 03/24/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Mechanical circulatory support (MCS) devices are often deployed to treat patients with refractory cardiogenic shock, rapid deterioration of heart failure, and inotrope-dependent patients. Stroke is a common complication of MCS therapy. This study assesses the risk of stroke during the early post-heart transplantation (HT) period (days from successful HT to discharge or death) in patients who received MCS therapy leading to HT. METHODS Data were derived from the United Organ Sharing (UNOS) database. MCS modalities studied include left ventricular assist devices (LVAD), right ventricular assist devices (RVAD), biventricular ventricular assist devices (BiVAD), and extra-corporeal membrane oxygenation (ECMO). A multiple logistic regression model was used to determine the risk of stroke during the early post-HT period associated in patients treated with MCS leading to HT. RESULTS Between 1988 and 2014, 10,258 patients received MCS therapy leading to HT. Of these, 160 patients (1.96%) developed stroke during the early post-HT period. Multiple regression analysis showed that MCS modalities and associated odds ratios for early post-HT stroke and associated 95% confidence intervals were as follows: LVAD (1.44, 0.70-2.94), RVAD (2.89, 1.03-8.05, BiVAD (3.24, 1.15-9.10), ECMO (2.27 (1.17-4.40), and any MCS (1.60 (1.20-2.12). CONCLUSIONS With the exception of left ventricular assist devices, use of MCS modalities leading to HT is significantly and independently associated with stroke during the early post-HT period.
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Affiliation(s)
| | | | - Deepak K Parashara
- Kansas City Veterans Administration Medical Center, Kansas City, KS, USA
| | - Martin A Alpert
- Columbia School of Medicine, University of Missouri, Columbia, MO, USA.
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18
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Sivathasan C. Chugging to silent machines: development of mechanical cardiac support. Indian J Thorac Cardiovasc Surg 2020; 36:234-246. [DOI: 10.1007/s12055-020-01010-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 07/01/2020] [Accepted: 07/02/2020] [Indexed: 11/28/2022] Open
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20
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Grant C, Richards JB, Frakes M, Cohen J, Wilcox SR. ECMO and Right Ventricular Failure: Review of the Literature. J Intensive Care Med 2020; 36:352-360. [PMID: 31964208 DOI: 10.1177/0885066619900503] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Right ventricular (RV) failure is the inability of the RV to maintain sufficient cardiac output in the setting of adequate preload, due to either intrinsic injury to the RV or increased afterload. Medical treatment of RV failure should include optimizing preload, augmenting contractility with vasopressors and inotropes, and considering inhaled pulmonary vasodilators. However, when medical therapies are insufficient, mechanical circulatory support (MCS) is needed to maintain systemic and RV perfusion. The data on MCS for isolated RV failure are limited, but extracorporeal membrane oxygenation (ECMO) appears to be the most efficient and effective modality. For patients with isolated RV failure from acute hypoxemic respiratory failure, veno-venous (VV) ECMO is an appropriate initial configuration, even if the patient is in shock. With primary RV injury or RV failure with concomitant left ventricle (LV) failure, however, venoarterial (VA) ECMO is indicated. Both modalities provide indirect support to the RV by reducing preload, reducing RV wall tension, and delivering oxygenated blood to the coronary circulation. Peripheral cannulation is required in VV-ECMO and is most commonly used in VA-ECMO, allowing for rapid cannulation even in emergencies. Changes in pulsatility on an arterial catheter waveform can indicate changes in clinical status including changes in myocardial function, inadequate preload, worsening RV failure, and excessive VA-ECMO support leading to an elevated LV afterload. Myocardial function may be improved by titration of inotropes or vasodilators, utilization of an Impella or an intra-aortic balloon counterpulsation support devices, or by changes in VA-ECMO support.
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Affiliation(s)
| | - Jeremy B Richards
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, 1859Beth Israel Deaconess Medical Center, Boston, MA, USA
| | | | - Jason Cohen
- 485798Boston MedFlight, Bedford, MA, USA.,Department of Surgery, Brigham and Women's Hospital, Boston, MA, USA
| | - Susan R Wilcox
- 485798Boston MedFlight, Bedford, MA, USA.,Department of Emergency Medicine, Heart Center ICU, 2348Massachusetts General Hospital, Boston, MA, USA
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21
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Vargo PR, Soltesz EG. Catheter and Surgical Therapies for Right Heart Failure: Current and Future Options. Semin Thorac Cardiovasc Surg 2020; 32:389-395. [DOI: 10.1053/j.semtcvs.2020.02.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 02/21/2020] [Indexed: 11/11/2022]
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de By TMMH, Mohacsi P, Gahl B, Zittermann A, Krabatsch T, Gustafsson F, Leprince P, Meyns B, Netuka I, Caliskan K, Castedo E, Musumeci F, Vincentelli A, Hetzer R, Gummert J. The European Registry for Patients with Mechanical Circulatory Support (EUROMACS) of the European Association for Cardio-Thoracic Surgery (EACTS): second report. Eur J Cardiothorac Surg 2019; 53:309-316. [PMID: 29029117 DOI: 10.1093/ejcts/ezx320] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 08/08/2017] [Accepted: 08/13/2017] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES The European Registry for Patients with Mechanical Circulatory Support (EUROMACS) was founded in Berlin, Germany. EUROMACS is supported fully by the European Association for Cardio-Thoracic Surgery (EACTS) and, since 2014, has functioned as a committee of the EACTS. The purpose of having the EUROMACS as a part of the EACTS is to accumulate clinical data related to long-term mechanical circulatory support for scientific purposes and to publish annual reports. METHODS Participating hospitals contributed surgical and cardiological pre-, peri- and long-term postoperative data of mechanical circulatory support implants to the registry. Data for all implants performed from 1 January 2011 to 31 December 2016 were analysed. Several auditing methods were used to monitor the quality of the data. Data could be provided for in-depth studies, and custom data could be provided at the request of clinicians and scientists. This report includes updates of patient characteristics, implant frequency, mortality rates and adverse events. RESULTS Fifty-two hospitals participated in the registry. This report is based on 2947 registered implants in 2681 patients. Survival of adult patients (>17 years of age) with continuous-flow left ventricular assist devices with a mean follow-up of 391 days was 69% (95% confidence interval 66-71%) 1 year after implantation. On average, patients were observed for 12 months (median 7 months, range 0-70 months). When we investigated for adverse events, we found an overall event rate per 100 patient-months of 3.56 for device malfunction, 6.45 for major bleeding, 6.18 for major infection and 3.03 for neurological events within the first 3 months after implantation. CONCLUSIONS Compared to the first EUROMACS report, the number of participating hospitals increased from 21 to 52 (+148%), whereas the number of registered implants more than tripled from 825 to 2947 (+257%). The increase in the number of participating hospitals led us to increase the quality control measures through data input control, on-site audits and statistical analyses.
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Affiliation(s)
| | - Paul Mohacsi
- Swiss Cardiovascular Center, University Hospital Bern (Inselspital), Bern, Switzerland
| | - Brigitta Gahl
- Swiss Cardiovascular Center, University Hospital Bern (Inselspital), Bern, Switzerland
| | | | | | | | - Pascal Leprince
- Université Pierre et Marie Curie, Hôpital La-Pitié Salpetrière, Paris, France
| | - Bart Meyns
- Katholieke Universiteit Leuven, Leuven, Belgium
| | - Ivan Netuka
- Institute for Clinical and Experimental Medicine (IKEM), Prague, Czech Republic
| | | | - Evaristo Castedo
- Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
| | | | - André Vincentelli
- Centre Hospitalier Régional Universitaire de Lille, France, Lille, France
| | | | - Jan Gummert
- Herz- und Diabeteszentrum NRW, Bad Oeynhausen, Germany
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Broda CR, Adachi I. Commentary: Fontan assist device support: Road map to "stage 4" palliation. J Thorac Cardiovasc Surg 2019; 158:1422-1423. [PMID: 31493880 DOI: 10.1016/j.jtcvs.2019.06.101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 06/17/2019] [Accepted: 06/18/2019] [Indexed: 10/26/2022]
Affiliation(s)
- Christopher R Broda
- Department of Pediatrics, Pediatric and Adult Congenital Cardiology, Texas Children's Hospital/Baylor College of Medicine, Houston, Tex
| | - Iki Adachi
- Department of Surgery, Congenital Heart Surgery, Texas Children's Hospital/Baylor College of Medicine, Houston, Tex.
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Taimeh Z. Assessment and treatment of the failing right heart: considerations for transplantation referral. J Thorac Dis 2019; 11:S1817-S1820. [PMID: 31632759 DOI: 10.21037/jtd.2019.08.60] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Long considered an insignificant chamber, the right ventricle has been recently under spotlight, especially with emerging data supporting its critical role in disease progression. The right ventricle is a triangular heart chamber with complex physiology and pathophysiology. In this review, we discuss the normal physiology of the right ventricle, right ventricular failure, and recent advances in treatment with emphasis on optimal timing for transplantation referral.
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Affiliation(s)
- Ziad Taimeh
- Texas Heart Institute, Baylor College of Medicine, Houston, TX, USA
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25
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Crossland DS, Van De Bruaene A, Silversides CK, Hickey EJ, Roche SL. Heart Failure in Adult Congenital Heart Disease: From Advanced Therapies to End-of-Life Care. Can J Cardiol 2019; 35:1723-1739. [PMID: 31813505 DOI: 10.1016/j.cjca.2019.07.626] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 07/12/2019] [Accepted: 07/23/2019] [Indexed: 12/14/2022] Open
Abstract
There is mounting recognition that some of the most urgent problems of adult congenital heart disease (ACHD) are the prevention, diagnosis, and management of heart failure (HF). Recent expert consensus and position statements not only emphasize a specific and pressing need to tackle HF in ACHD (ACHD-HF) but also highlight the difficulty of doing so given a current sparsity of data. Some of the challenges will be addressed by this review. The authors are from 3 different centres; each centre has an established subspeciality ACHD-HF clinic and is able to provide heart transplant, multiorgan transplant, and mechanical support for patients with ACHD. Appropriate care of this complex population requires multidisciplinary ACHD-HF teams evaluate all possible treatment options. The risks and benefits of nontransplant ACHD surgery, percutaneous structural and electrophysiological intervention, and ongoing conservative management must be considered alongside those of transplant strategies. In our approach, advanced care planning and palliative care coexist with the consideration of advanced therapies. An ethos of shared decision making, guided by the patient's values and preferences, strengthens clinical care, but requires investment of time as well as skilled communication. In this review, we aim to offer practical real-world advice for managing these patients, supported by scientific data where it exists.
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Affiliation(s)
- David S Crossland
- Adult Congenital and Paediatric Heart Unit, Freeman Hospital, Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, United Kingdom; Cardiovascular Research Centre, Institute of Genetic Medicine, Newcastle University, Newcastle Upon Tyne, United Kingdom
| | | | - Candice K Silversides
- Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada; Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Edward J Hickey
- Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada; Department of Medicine, University of Toronto, Toronto, Ontario, Canada; The Labatt Family Heart Centre, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - S Lucy Roche
- Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada; Department of Medicine, University of Toronto, Toronto, Ontario, Canada; The Labatt Family Heart Centre, The Hospital for Sick Children, Toronto, Ontario, Canada.
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Vullaganti S, Tibrewala A, Rich JD, Pham DT, Rich S. The use of a durable right ventricular assist device for isolated right ventricular failure due to combined pre- and postcapillary pulmonary hypertension. Pulm Circ 2019; 9:2045894019831222. [PMID: 30698486 PMCID: PMC6540493 DOI: 10.1177/2045894019831222] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Patients with isolated right ventricular (RV) failure have poor outcomes and minimal treatment options. We report a case where a durable RV assist device (RVAD) was implanted for end-stage RV failure from combined pre- and postcapillary pulmonary hypertension (PH) due in part to chronic thromboembolic PH using a temporary percutaneous RVAD as a bridging strategy. While the patient ultimately died from non-cardiovascular causes, there was significant improvement in markers of cardiogenic shock and hemodynamic RV function parameters without adverse effects from increased pulmonary artery pressures. More research is needed to identify an appropriate long-term mechanical support strategy for this patient population.
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Affiliation(s)
- Sirish Vullaganti
- 1 Division of Cardiology, Bluhm Cardiovascular Institute, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Anjan Tibrewala
- 1 Division of Cardiology, Bluhm Cardiovascular Institute, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Jonathan D Rich
- 1 Division of Cardiology, Bluhm Cardiovascular Institute, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Duc T Pham
- 2 Department of Cardiac Surgery, Bluhm Cardiovascular Institute, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Stuart Rich
- 1 Division of Cardiology, Bluhm Cardiovascular Institute, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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27
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Mechanical Circulatory Support of the Right Ventricle for Adult and Pediatric Patients With Heart Failure. ASAIO J 2019; 65:106-116. [DOI: 10.1097/mat.0000000000000815] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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28
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Dandel M, Hetzer R. Temporary assist device support for the right ventricle: pre-implant and post-implant challenges. Heart Fail Rev 2019; 23:157-171. [PMID: 29453695 DOI: 10.1007/s10741-018-9678-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Severe right ventricular (RV) failure is more likely reversible than similar magnitudes of left ventricular (LV) failure and, because reversal of both adaptive remodeling and impaired contractility require most often only short periods of support, the use of temporary RV assist devices (t-RVADs) can be a life-saving therapy option for many patients. Although increased experience with t-RVADs and progresses made in the development of safer devices with lower risk for complications has improved both recovery rate of RV function and patient survival, the mortality of t-RVAD recipients can still be high but it depends mainly on the primary cause of RV failure (RVF), the severity of end-organ dysfunction, and the timing of RVAD implantation, and much less on adverse events and complications related to RVAD implantation, support, or removal. Reduced survival of RVAD recipients should therefore not discourage appropriate application of RVADs because their underuse further reduces the chances for RV recovery and patient survival. The article reviews and discusses the challenges related to the pre-implant and post-implant decision-making processes aiming to get best possible therapeutic results. Special attention is focused on pre-implant RV assessment and prediction of RV improvement during mechanical unloading, patient selection for t-RVAD therapy, assessment of unloading-promoted RV recovery, and prediction of its stability after RVAD removal. Particular consideration is also given to prediction of RVF after LVAD implantation which is usually hampered by the complex interactions between the different risk factors related indirectly or directly to the RV potential for reverse remodeling and functional recovery.
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Affiliation(s)
- Michael Dandel
- DZHK (German Centre for Heart and Circulatory Research), Partner site Berlin, Berlin, Germany. .,Deutsches Herzzentrum Berlin, Augustenburger Platz 1, 13353, Berlin, Germany.
| | - Roland Hetzer
- Deutsches Herzzentrum Berlin, Augustenburger Platz 1, 13353, Berlin, Germany.,Cardio Centrum Berlin, Berlin, Germany
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Abstract
Since the 1950s when the first devices for mechanical circulatory support were developed, there has been an impressive evolution of their technology. The first pioneering pumps were used to rescue acute complications after cardiac surgery. Advances in technology, increased knowledge of flow dynamics, and a more appropriate selection of the patients who actually need this support have contributed to significantly improve the benefits of this therapy. Today, mechanical circulatory support is an essential tool for the treatment of advanced heart failure. This strategy is used either as a bridge to heart transplantation or as a destination therapy for patients who do not meet the transplant criteria. A third indication is the bridge to recovery option for those patients in whom the improvement in cardiac function may be so important that the pump can be removed and the transplantation circumvented. In addition, mechanical circulatory support has fostered marked improvements in several clinical aspects affecting both patient health and quality of life. Despite the improvements in the technology of the devices of the last generation, severe adverse effects are still the Achilles heel of mechanical circulatory support therapy. This review summarizes the history, the technology, the clinical outcomes, and the possible future directions of this therapy.
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Affiliation(s)
- Amedeo Terzi
- UOS Chirurgia dei Trapianti, ASST Papa Giovanni XXIII, Bergamo, Italy
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30
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Chizinga M, Fares WH. Chronic Right Heart Failure: Expanding Prevalence and Challenges in Outpatient Management. Heart Fail Clin 2018; 14:413-423. [PMID: 29966638 DOI: 10.1016/j.hfc.2018.03.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Right heart failure is caused by right heart dysfunction resulting in suboptimal stroke volume to supply the pulmonary circulation. Therapeutic developments mean that patients with acute right heart failure survive to hospital discharge and live with chronic right heart failure. Chronic right heart failure management aims to reduce afterload, optimize preload, and support contractility, with the best evidence available in vascular targeted therapy for pulmonary arterial hypertension. However, the management of chronic right heart failure relies on adapting therapies for left ventricular heart failure to the right. We review right heart failure management in the ambulatory setting and its challenges.
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Affiliation(s)
- Mwelwa Chizinga
- Department of Medicine, Section of Pulmonary, Critical Care, and Sleep Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Wassim H Fares
- Department of Medicine, Section of Pulmonary, Critical Care, and Sleep Medicine, Yale University School of Medicine, New Haven, CT, USA.
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Westerhof BE, Saouti N, van der Laarse WJ, Westerhof N, Vonk Noordegraaf A. Treatment strategies for the right heart in pulmonary hypertension. Cardiovasc Res 2018; 113:1465-1473. [PMID: 28957540 PMCID: PMC5852547 DOI: 10.1093/cvr/cvx148] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 09/01/2017] [Indexed: 02/06/2023] Open
Abstract
The function of the right ventricle (RV) determines the prognosis of patients with pulmonary hypertension. While much progress has been made in the treatment of pulmonary hypertension, therapies for the RV are less well established. In this review of treatment strategies for the RV, first we focus on ways to reduce wall stress since this is the main determinant of changes to the ventricle. Secondly, we discuss treatment strategies targeting the detrimental consequences of increased RV wall stress. To reduce wall stress, afterload reduction is the essential. Additionally, preload to the ventricle can be reduced by diuretics, by atrial septostomy, and potentially by mechanical ventricular support. Secondary to ventricular wall stress, left-to-right asynchrony, altered myocardial energy metabolism, and neurohumoral activation will occur. These may be targeted by optimising RV contraction with pacing, by iron supplement, by angiogenesis and improving mitochondrial function, and by neurohumoral modulation, respectively. We conclude that several treatment strategies for the right heart are available; however, evidence is still limited and further research is needed before clinical application can be recommended.
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Affiliation(s)
- Berend E Westerhof
- Department of Pulmonary Diseases, VU University Medical Center, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands.,Department of Medical Biology, Academic Medical Center, Amsterdam, The Netherlands
| | - Nabil Saouti
- Department of Cardio-Thoracic Surgery, St. Antonius Hospital, Nieuwegein, The Netherlands
| | - Willem J van der Laarse
- Department of Physiology, Institute for Cardiovascular Research, VU University Medical Center Amsterdam, Amsterdam, The Netherlands
| | - Nico Westerhof
- Department of Pulmonary Diseases, VU University Medical Center, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
| | - Anton Vonk Noordegraaf
- Department of Pulmonary Diseases, VU University Medical Center, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands
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Konstam MA, Kiernan MS, Bernstein D, Bozkurt B, Jacob M, Kapur NK, Kociol RD, Lewis EF, Mehra MR, Pagani FD, Raval AN, Ward C. Evaluation and Management of Right-Sided Heart Failure: A Scientific Statement From the American Heart Association. Circulation 2018; 137:e578-e622. [DOI: 10.1161/cir.0000000000000560] [Citation(s) in RCA: 335] [Impact Index Per Article: 55.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Background and Purpose:
The diverse causes of right-sided heart failure (RHF) include, among others, primary cardiomyopathies with right ventricular (RV) involvement, RV ischemia and infarction, volume loading caused by cardiac lesions associated with congenital heart disease and valvular pathologies, and pressure loading resulting from pulmonic stenosis or pulmonary hypertension from a variety of causes, including left-sided heart disease. Progressive RV dysfunction in these disease states is associated with increased morbidity and mortality. The purpose of this scientific statement is to provide guidance on the assessment and management of RHF.
Methods:
The writing group used systematic literature reviews, published translational and clinical studies, clinical practice guidelines, and expert opinion/statements to summarize existing evidence and to identify areas of inadequacy requiring future research. The panel reviewed the most relevant adult medical literature excluding routine laboratory tests using MEDLINE, EMBASE, and Web of Science through September 2017. The document is organized and classified according to the American Heart Association to provide specific suggestions, considerations, or reference to contemporary clinical practice recommendations.
Results:
Chronic RHF is associated with decreased exercise tolerance, poor functional capacity, decreased cardiac output and progressive end-organ damage (caused by a combination of end-organ venous congestion and underperfusion), and cachexia resulting from poor absorption of nutrients, as well as a systemic proinflammatory state. It is the principal cause of death in patients with pulmonary arterial hypertension. Similarly, acute RHF is associated with hemodynamic instability and is the primary cause of death in patients presenting with massive pulmonary embolism, RV myocardial infarction, and postcardiotomy shock associated with cardiac surgery. Functional assessment of the right side of the heart can be hindered by its complex geometry. Multiple hemodynamic and biochemical markers are associated with worsening RHF and can serve to guide clinical assessment and therapeutic decision making. Pharmacological and mechanical interventions targeting isolated acute and chronic RHF have not been well investigated. Specific therapies promoting stabilization and recovery of RV function are lacking.
Conclusions:
RHF is a complex syndrome including diverse causes, pathways, and pathological processes. In this scientific statement, we review the causes and epidemiology of RV dysfunction and the pathophysiology of acute and chronic RHF and provide guidance for the management of the associated conditions leading to and caused by RHF.
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Chalon A, Favre J, Piotrowski B, Landmann V, Grandmougin D, Maureira JP, Laheurte P, Tran N. Contribution of computational model for assessment of heart tissue local stress caused by suture in LVAD implantation. J Mech Behav Biomed Mater 2018; 82:291-298. [PMID: 29649657 DOI: 10.1016/j.jmbbm.2018.03.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/23/2018] [Accepted: 03/26/2018] [Indexed: 10/17/2022]
Abstract
STUDY Implantation of a Left Ventricular Assist Device (LVAD) may produce both excessive local tissue stress and resulting strain-induced tissue rupture that are potential iatrogenic factors influencing the success of the surgical attachment of the LVAD into the myocardium. By using a computational simulation compared to mechanical tests, we sought to investigate the characteristics of stress-induced suture material on porcine myocardium. METHODS Tensile strength experiments (n = 8) were performed on bulk left myocardium to establish a hyperelastic reduced polynomial constitutive law. Simultaneously, suture strength tests on left myocardium (n = 6) were performed with a standard tensile test setup. Experiments were made on bulk ventricular wall with a single U-suture (polypropylene 3-0) and a PTFE pledget. Then, a Finite Element simulation of a LVAD suture case was performed. Strength versus displacement behavior was compared between mechanical and numerical experiments. Local stress fields in the model were thus analyzed. RESULTS A strong correlation between the experimental and the numerical responses was observed, validating the relevance of the numerical model. A secure damage limit of 100 kPa on heart tissue was defined from mechanical suture testing and used to describe numerical results. The impact of suture on heart tissue could be accurately determined through new parameters of numerical data (stress diffusion, triaxiality stress). Finally, an ideal spacing between sutures of 2 mm was proposed. CONCLUSION Our computational model showed a reliable ability to provide and predict various local tissue stresses created by suture penetration into the myocardium. In addition, this model contributed to providing valuable information useful to design less traumatic sutures for LVAD implantation. Therefore, our computational model is a promising tool to predict and optimize LVAD myocardial suture.
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Affiliation(s)
- A Chalon
- Ecole de Chirurgie Nancy-Lorraine, HVL, Université de Lorraine, Nancy, France; UMR INSERM 1116 DCAC, Nancy, France; Université de Lorraine, CNRS, Arts et Métiers ParisTech, LEM3, F-57000 Metz, France.
| | - J Favre
- Laboratoire Georges Friedel, ENSM-SE, UMR CNRS 5307, Saint-Etienne, France
| | - B Piotrowski
- Université de Lorraine, CNRS, Arts et Métiers ParisTech, LEM3, F-57000 Metz, France
| | - V Landmann
- Université de Lorraine, CNRS, Arts et Métiers ParisTech, LEM3, F-57000 Metz, France
| | - D Grandmougin
- Ecole de Chirurgie Nancy-Lorraine, HVL, Université de Lorraine, Nancy, France
| | - J-P Maureira
- Ecole de Chirurgie Nancy-Lorraine, HVL, Université de Lorraine, Nancy, France
| | - P Laheurte
- Université de Lorraine, CNRS, Arts et Métiers ParisTech, LEM3, F-57000 Metz, France
| | - N Tran
- Ecole de Chirurgie Nancy-Lorraine, HVL, Université de Lorraine, Nancy, France; UMR INSERM 1116 DCAC, Nancy, France
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35
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Caldeira CCB, Machado RC, Caldeira DCB. Implantation of Short-Term and Long-Term Right Ventricular Assist Devices. Braz J Cardiovasc Surg 2017; 32:435-437. [PMID: 29211226 PMCID: PMC5701107 DOI: 10.21470/1678-9741-2017-0021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 07/09/2017] [Indexed: 12/05/2022] Open
Abstract
The last decade has seen considerable growth in the use of left ventricular
assist devices (LVAD), in end-phase heart failure treatment. The indications,
contraindications and implantation techniques are well-defined. However,
information about mechanical support for right ventricular failure is lacking.
The aim of this communication is to present alternative techniques for
implantation of short- and longterm right ventricular assist devices. Implanting
the device in the right atrium has certain advantages when compared with the
right ventricle. It is an easier surgical technique that preserves the tricuspid
valve and it can potentially reduce the risk of pump thrombosis.
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Valdovinos J, Chris Bouwmeester J, Bonde P. Preliminary Design and Testing of a Cavo-Arterial Pump Utilizing Axial Magnetic Couplings. J Med Device 2017. [DOI: 10.1115/1.4038221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Right ventricular (RV) dysfunction has limited the effectiveness of mechanical circulatory support (MCS) therapy in some heart failure (HF) patients. Intravascular pumps can provide adequate circulatory support without the need for extensive operations. The development of an intravascular right ventricular assist device (RVAD), called the cavo-arterial pump (CAP), is presented. Two prototypes of the CAP were developed to demonstrate the feasibility of providing adequate pulmonary support and to demonstrate the feasibility of using axial magnetic couplings for contactless torque transmission from the motor shaft to the pump impeller. The CAP utilizing a direct drive mechanism produced a maximum pressure of 100 mm Hg and a maximum flow of 2.25 L/min when operated at 24 kRPM. When a magnetic drive mechanism was used, the overall flowrate decreased due to a loss in torque transmission. The magnetic drive CAP was able to operate up to 18.5 kRPM and produce a maximum flowrate of 1.35 L/min and a maximum pressure difference of 40 mm Hg. These results demonstrate that the CAP produces sufficient output for partial circulatory support of the pulmonary circulation, and that axial magnetic couplings can help to eliminate the sealing system needed to isolate the miniature motor and bearings from blood contact.
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Affiliation(s)
- John Valdovinos
- Department of Electrical and Computer Engineering, California State University Northridge, 18111 Nordhoff Street, Northridge, CA 91330 e-mail:
| | - J. Chris Bouwmeester
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, 170 College Street, Toronto, ON M5S 3E3, Canada e-mail:
| | - Pramod Bonde
- Center for Advanced Heart Failure and Transplantation, Yale School of Medicine, 330 Cedar Street, 204 Boardman, New Haven, CT 06520 e-mail:
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Systolic and diastolic unloading by mechanical support of the acute vs the chronic pressure overloaded right ventricle. J Heart Lung Transplant 2017; 36:457-465. [DOI: 10.1016/j.healun.2016.10.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 09/07/2016] [Accepted: 10/12/2016] [Indexed: 11/21/2022] Open
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de By TM, Castedo E, Krabatsch T, Mohacsi P, Meyns B, Netuka I, Gummert J. The EUROMACS Registry of patients who receive mechanical circulatory support: Role and perspectives. CIRUGIA CARDIOVASCULAR 2016. [DOI: 10.1016/j.circv.2016.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Smith LA, Yarboro LT, Kennedy JLW. Left ventricular assist device implantation strategies and outcomes. J Thorac Dis 2015; 7:2088-96. [PMID: 26793328 PMCID: PMC4703687 DOI: 10.3978/j.issn.2072-1439.2015.08.13] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 07/30/2015] [Indexed: 11/14/2022]
Abstract
Over the past 15 years, the field of mechanical circulatory support has developed significantly. Currently, there are a multitude of options for both short and long term cardiac support. Choosing the appropriate device for each patient depends on the amount of support needed and the goals of care. This article focuses on long term, implantable devices for both bridge to transplantation and destination therapy indications. Implantation strategies, including the appropriate concomitant surgeries are discussed as well as expected long term outcomes. As device technology continues to improve, long term mechanical circulatory support may become a viable alternative to transplantation.
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The European Registry for Patients with Mechanical Circulatory Support (EUROMACS): first annual report. Eur J Cardiothorac Surg 2015; 47:770-6; discussion 776-7. [DOI: 10.1093/ejcts/ezv096] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Accepted: 01/27/2015] [Indexed: 11/14/2022] Open
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