1
|
Jahren SE, Martinez T, Walter A, Clavica F, Heinisch PP, Buffle E, Luedi MM, Hörer J, Obrist D, Carrel T, Civet Y, Perriard Y. Novel para-aortic cardiac assistance using a pre-stretched dielectric elastomer actuator. INTERDISCIPLINARY CARDIOVASCULAR AND THORACIC SURGERY 2024; 38:ivae027. [PMID: 38419585 PMCID: PMC10955250 DOI: 10.1093/icvts/ivae027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/07/2024] [Accepted: 02/26/2024] [Indexed: 03/02/2024]
Abstract
OBJECTIVES We propose an evolution of a dielectric elastomer actuator-based cardiac assist device that acts as a counterpulsation system. We introduce a new pre-stretched actuator and implant the device in a graft bypass between the ascending and descending aorta to redirect all blood through the device (ascending aorta clamped). The objective was to evaluate the influence of these changes on the assistance provided to the heart. METHODS The novel para-aortic device and the new implantation technique were tested in vivo in 5 pigs. We monitored the pressure and flow in the aorta as well as the pressure-volume characteristics of the left ventricle. Different activation timings were tested to identify the optimal device actuation. RESULTS The proposed device helps reducing the end-diastolic pressure in the aorta by up to 13 ± 4.0% as well as the peak systolic pressure by up to 16 ± 3.6%. The early diastolic pressure was also increased up to 10 ± 3.5%. With different activation, we also showed that the device could increase or decrease the stroke volume. CONCLUSIONS The new setup and the novel para-aortic device presented here helped improve cardiac assistance compared to previous studies. Moreover, we revealed a new way to assist the heart by actuating the device at different starting time to modify the left ventricular stroke volume and stroke work.
Collapse
Affiliation(s)
- Silje Ekroll Jahren
- Integrated Actuators Laboratory (LAI), École polytechnique fédérale de Lausanne (EPFL), Neuchâtel, Switzerland
- ARTORG Center for Biomedical Engineering Research, University of Bern, Bern, Switzerland
| | - Thomas Martinez
- Integrated Actuators Laboratory (LAI), École polytechnique fédérale de Lausanne (EPFL), Neuchâtel, Switzerland
| | - Armando Walter
- Integrated Actuators Laboratory (LAI), École polytechnique fédérale de Lausanne (EPFL), Neuchâtel, Switzerland
| | - Francesco Clavica
- Integrated Actuators Laboratory (LAI), École polytechnique fédérale de Lausanne (EPFL), Neuchâtel, Switzerland
- ARTORG Center for Biomedical Engineering Research, University of Bern, Bern, Switzerland
| | - Paul Philipp Heinisch
- Department of Congenital and Pediatric Heart Surgery, German Heart Center Munich, Technical University of Munich, Munich, Germany
- Division of Congenital and Pediatric Heart Surgery, University Hospital of Munich, Ludwig-Maximilians-University, Munich, Germany
| | - Eric Buffle
- Department of Cardiology, Bern University Hospital Inselspital, University of Bern, Bern, Switzerland
| | - Markus Martin Luedi
- Department of Anaesthesiology, Bern University Hospital Inselspital, University of Bern, Bern, Switzerland
| | - Jürgen Hörer
- Department of Congenital and Pediatric Heart Surgery, German Heart Center Munich, Technical University of Munich, Munich, Germany
- Division of Congenital and Pediatric Heart Surgery, University Hospital of Munich, Ludwig-Maximilians-University, Munich, Germany
| | - Dominik Obrist
- ARTORG Center for Biomedical Engineering Research, University of Bern, Bern, Switzerland
| | - Thierry Carrel
- Department of Cardiac Surgery, University of Zurich, Zurich, Switzerland
| | - Yoan Civet
- Integrated Actuators Laboratory (LAI), École polytechnique fédérale de Lausanne (EPFL), Neuchâtel, Switzerland
| | - Yves Perriard
- Integrated Actuators Laboratory (LAI), École polytechnique fédérale de Lausanne (EPFL), Neuchâtel, Switzerland
| |
Collapse
|
2
|
A Holistic View of Advanced Heart Failure. Life (Basel) 2022; 12:life12091298. [PMID: 36143336 PMCID: PMC9501910 DOI: 10.3390/life12091298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/08/2022] [Accepted: 08/21/2022] [Indexed: 01/12/2023] Open
Abstract
Advanced heart failure (HF) may occur at any level of left ventricular (LV) ejection fraction (LVEF). The latter, which is widely utilized for the evaluation of LV systolic performance and treatment guidance of HF patients, is heavily influenced by LV size and geometry. As the accurate evaluation of ventricular systolic function and size is crucial in patients with advanced HF, the LVEF should be supplemented or even replaced by more specific indices of LV function such as the systolic strain and cardiac power output and size such as the LV diastolic diameters and volumes. Conventional treatment (cause eradication, medications, devices) is often poorly tolerated and fails and advanced treatment (mechanical circulatory support [MCS], heart transplantation [HTx]) is required. The effectiveness of MCS is heavily dependent on heart size, whereas HTx which is effective in the vast majority of the cases is limited by the small donor pool. Expanding the MCS indications to include patients with small ventricles as well as the HTx donor pool are major challenges in the management of advanced HF.
Collapse
|
3
|
Sperry AE, Williams M, Atluri P, Szeto WY, Cevasco M, Bermudez CA, Acker MA, Ibrahim M. The Surgeon's Role in Cardiogenic Shock. Curr Heart Fail Rep 2021; 18:240-251. [PMID: 33956313 DOI: 10.1007/s11897-021-00514-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/07/2021] [Indexed: 11/29/2022]
Abstract
PURPOSE OF REVIEW Cardiogenic shock represents a very challenging patient population due to the undifferentiated pathologies presenting as cardiogenic shock, difficult decision-making, prognostication, and ever-expanding support options. The role of cardiac surgeons on this team is evolving. RECENT FINDINGS The implementation of a shock team is associated with improved outcomes in patients with cardiogenic shock. Early deployment of mechanical circulatory support devices may allow an opportunity to rescue these patients. Cardiothoracic surgeons are a critical component of the shock team who can deploy timely mechanical support and surgical intervention in selected patients for optimal outcomes.
Collapse
Affiliation(s)
- Alexandra E Sperry
- Division of Cardiovascular Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Matthew Williams
- Division of Cardiovascular Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Pavan Atluri
- Division of Cardiovascular Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Wilson Y Szeto
- Division of Cardiovascular Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Marisa Cevasco
- Division of Cardiovascular Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Christian A Bermudez
- Division of Cardiovascular Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Michael A Acker
- Division of Cardiovascular Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Michael Ibrahim
- Division of Cardiovascular Surgery, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
| |
Collapse
|
4
|
Li YH, Lee CH, Huang WC, Wang YC, Su CH, Sung PH, Chien SC, Hwang JJ. 2020 Focused Update of the 2012 Guidelines of the Taiwan Society of Cardiology for the Management of ST-Segment Elevation Myocardial Infarction. ACTA CARDIOLOGICA SINICA 2020; 36:285-307. [PMID: 32675921 PMCID: PMC7355116 DOI: 10.6515/acs.202007_36(4).20200619a] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 06/19/2020] [Indexed: 12/22/2022]
Abstract
One of the major missions of the Taiwan Society of Cardiology is to publish practice guidelines that are suitable for local use in Taiwan. The ultimate purpose is to continuously improve cardiovascular health care from the implementation of the recommendations in the guidelines. Despite recent improvement of medical care, patients with ST-segment elevation myocardial infarction (STEMI) still carry a high morbidity and mortality. There have been many changes in the concepts of STEMI diagnosis and treatment in recent years. The 2020 focused update of the 2012 guidelines of the Taiwan Society of Cardiology for the management of STEMI is an amendment of the 2012 guidelines based on the newest published scientific data. The recommendations in this focused update provide the diagnosis and treatment strategy for STEMI that should be generally implemented in Taiwan. Nevertheless, guidelines never completely replace clinical judgment and medical decision still should be determined individually.
Collapse
Affiliation(s)
- Yi-Heng Li
- Division of Cardiology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University
| | - Cheng-Han Lee
- Division of Cardiology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University
- Institute of Clinical Pharmacy and Pharmaceutical Sciences, College of Medicine, National Cheng Kung University, Tainan
| | - Wei-Chun Huang
- Department of Critical Care Medicine, Kaohsiung Veterans General Hospital, Kaohsiung
- School of Medicine, National Yang Ming University, Taipei
- Department of Physical Therapy, Fooyin University, Kaohsiung
| | - Yu-Chen Wang
- Division of Cardiology, Department of Internal Medicine, Asia University Hospital
- Department of Biotechnology, Asia University
- Division of Cardiology, Department of Internal Medicine, China Medical University College of Medicine and Hospital
| | - Chun-Hung Su
- Division of Cardiology, Department of Internal Medicine, Chung Shan Medical University Hospital
- Institute of Medicine, School of Medicine, Chung Shan Medical University, Taichung
| | - Pei-Hsun Sung
- Institute of Clinical Pharmacy and Pharmaceutical Sciences, College of Medicine, National Cheng Kung University, Tainan
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University, College of Medicine
| | - Shih-Chieh Chien
- Department of Critical Care Medicine, MacKay Memorial Hospital, Taipei
| | - Juey-Jen Hwang
- Division of Cardiology, Department of Internal Medicine, National Taiwan University College of Medicine and Hospital, Taipei, Taiwan
| |
Collapse
|
5
|
Rali AS, Chandler J, Sauer A, Solomon MA, Shah Z. Venoarterial Extracorporeal Membrane Oxygenation in Cardiogenic Shock: Lifeline of Modern Day CICU. J Intensive Care Med 2019; 36:290-303. [PMID: 31830842 DOI: 10.1177/0885066619894541] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Cardiogenic shock (CS) portends an extremely high mortality of nearly 50% during index hospitalization. Prompt diagnoses of CS, its underlying etiology, and efficient implementation of treatment modalities, including mechanical circulatory support (MCS), are critical especially in light of such high predicted mortality. Venoarterial extracorporeal membrane oxygenation (VA-ECMO) provides the most comprehensive cardiopulmonary support in critically ill patients and hence has seen a steady increase in its utilization over the past decade. Hence, a good understanding of VA-ECMO, its role in treatment of CS, especially when compared with other temporary MCS devices, and its complications are vital for any critical care cardiologist. Our review of VA-ECMO aims to provide the same.
Collapse
Affiliation(s)
- Aniket S Rali
- Department of Cardiovascular Medicine, 12251The University of Kansas Health System, Kansas City, KS, USA
| | - Jonathan Chandler
- Department of Internal Medicine, 12251The University of Kansas Health System, Kansas City, KS, USA
| | - Andrew Sauer
- Department of Cardiovascular Medicine, 12251The University of Kansas Health System, Kansas City, KS, USA
| | - Michael A Solomon
- Critical Care Medicine, 2511National Institutes of Health Clinical Center, Bethesda, MD, USA.,Cardiology Branch, National Heart, Lung, and Blood Institute, 2511National Institutes of Health, Bethesda, MD, USA
| | - Zubair Shah
- Department of Cardiovascular Medicine, 12251The University of Kansas Health System, Kansas City, KS, USA
| |
Collapse
|
6
|
Impella CP and Veno-Arterial Extracorporeal Membrane Oxygenator as a sequential add-on combination circulatory support in ST-segment elevation myocardial infarction complicated by cardiogenic shock. CARDIOVASCULAR REVASCULARIZATION MEDICINE 2019; 20:60-62. [DOI: 10.1016/j.carrev.2019.08.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 07/19/2019] [Accepted: 08/05/2019] [Indexed: 12/21/2022]
|
7
|
Baldetti L, Beneduce A, Pappalardo F. Primary mechanical unloading in high-risk myocardial infarction: Perspectives in view of a paradigm shift. Int J Cardiol 2019; 293:32-38. [DOI: 10.1016/j.ijcard.2019.05.042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/24/2019] [Accepted: 05/17/2019] [Indexed: 10/26/2022]
|
8
|
Riordan B, Holecek W, Koopman JD. Cardiac Surgery and Mechanical Circulatory Support. PHYSICIAN ASSISTANT CLINICS 2019. [DOI: 10.1016/j.cpha.2018.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
9
|
Standardized Team-Based Care for Cardiogenic Shock. J Am Coll Cardiol 2019; 73:1659-1669. [DOI: 10.1016/j.jacc.2018.12.084] [Citation(s) in RCA: 214] [Impact Index Per Article: 42.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 12/12/2018] [Accepted: 12/21/2018] [Indexed: 11/23/2022]
|
10
|
Yu HY, Wang CH, Chi NH, Huang SC, Chou HW, Chou NK, Chen YS. Effect of interplay between age and low-flow duration on neurologic outcomes of extracorporeal cardiopulmonary resuscitation. Intensive Care Med 2018; 45:44-54. [PMID: 30547322 PMCID: PMC6334728 DOI: 10.1007/s00134-018-5496-y] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 12/03/2018] [Indexed: 11/29/2022]
Abstract
Purpose Caseloads of extracorporeal cardiopulmonary resuscitation (ECPR) have increased considerably, and hospital mortality rates remain high and unpredictable. The present study evaluated the effects of the interplay between age and prolonged low-flow duration (LFD) on hospital survival rates in elderly patients to identify subgroups that can benefit from ECPR. Methods Adult patients who received ECPR in our institution (2006–2016) were classified into groups 1, 2, and 3 (18–65, 65–75, and > 75 years, respectively). Data regarding ECPR and adverse events during hospitalization were collected prospectively. The primary end point was favorable neurologic outcome (cerebral performance category 1 or 2) at hospital discharge. Results In total, 482 patients were divided into groups 1, 2, and 3 (70.5%, 19.3%, and 10.2%, respectively). LFDs were comparable among the groups (40.3, 41.0, and 44.3 min in groups 1, 2, and 3, P = 0.781, 0.231, and 0.382, respectively). Favorable neurologic outcome rates were nonsignificantly lower in group 3 than in the other groups (27.6%, 24.7%, and 18.4% for group 1, 2, and 3, respectively). Subgroup analysis revealed that the favorable neurologic outcome rates in group 1 were 36.7%, 25.4%, and 13.0% for LFDs of < 30, 30–60, and > 60 min, respectively (P = 0.005); in group 2, they were 32.1%, 21.2%, and 23.1%, respectively (P = 0.548); in group 3 they were 25.0%, 20.8%, and 0.0%, respectively (P = 0.274). Conclusion On emergency consultation for ECPR, age and low-flow duration should be considered together to predict neurologic outcome. Electronic supplementary material The online version of this article (10.1007/s00134-018-5496-y) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Hsi-Yu Yu
- Department of Surgery, National Taiwan University Hospital, and College of Medicine, National Taiwan University, No. 7, Chung-Shan South Road, Taipei, 100, Taiwan
| | - Chih-Hsien Wang
- Department of Surgery, National Taiwan University Hospital, and College of Medicine, National Taiwan University, No. 7, Chung-Shan South Road, Taipei, 100, Taiwan
| | - Nai-Hsin Chi
- Department of Surgery, National Taiwan University Hospital, and College of Medicine, National Taiwan University, No. 7, Chung-Shan South Road, Taipei, 100, Taiwan
| | - Shu-Chien Huang
- Department of Surgery, National Taiwan University Hospital, and College of Medicine, National Taiwan University, No. 7, Chung-Shan South Road, Taipei, 100, Taiwan
| | - Heng-Wen Chou
- Department of Surgery, National Taiwan University Hospital, and College of Medicine, National Taiwan University, No. 7, Chung-Shan South Road, Taipei, 100, Taiwan
| | - Nai-Kuan Chou
- Department of Surgery, National Taiwan University Hospital, and College of Medicine, National Taiwan University, No. 7, Chung-Shan South Road, Taipei, 100, Taiwan
| | - Yih-Sharng Chen
- Department of Surgery, National Taiwan University Hospital, and College of Medicine, National Taiwan University, No. 7, Chung-Shan South Road, Taipei, 100, Taiwan.
| |
Collapse
|
11
|
Right Ventricular Dysfunction in Acute Myocardial Infarction Complicated by Cardiogenic Shock: A Hemodynamic Analysis of the Should We Emergently Revascularize Occluded Coronaries for Cardiogenic Shock (SHOCK) Trial and Registry. J Card Fail 2018; 24:148-156. [DOI: 10.1016/j.cardfail.2017.10.009] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 09/12/2017] [Accepted: 10/05/2017] [Indexed: 11/19/2022]
|