1
|
Wang Y, Fu Y, Wang Q, Kong D, Wang Z, Liu J. Recent advancements in polymeric heart valves: From basic research to clinical trials. Mater Today Bio 2024; 28:101194. [PMID: 39221196 PMCID: PMC11364905 DOI: 10.1016/j.mtbio.2024.101194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2024] [Revised: 08/06/2024] [Accepted: 08/08/2024] [Indexed: 09/04/2024] Open
Abstract
Valvular heart diseases (VHDs) have become one of the most prevalent heart diseases worldwide, and prosthetic valve replacement is one of the effective treatments. With the fast development of minimal invasive technology, transcatheter valves replacement has been exploring in recent years, such as transcatheter aortic valve replacement (TAVR) technology. In addition, basic research on prosthetic valves has begun to shift from traditional mechanical valves and biological valves to the development of polymeric heart valves. The polymeric heart valves (PHVs) have shown a bright future due to their advantages of longer durability, better biocompatibility and reduced cost. This review gives a brief history of the development of polymeric heart valves, provides a summary of the types of polymer materials suitable for heart leaflets and the emerging processing/preparation methods for polymeric heart valves in the basic research. Besides, we facilitate a deeper understanding of polymeric heart valve products that are currently in preclinical/clinical studies, also summary the limitations of the present researches as well as the future development trends. Hence, this review will provide a holistic understanding for researchers working in the field of prosthetic valves, and will offer ideas for the design and research of valves with better durability and biocompatibility.
Collapse
Affiliation(s)
- Yuanchi Wang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Yulong Fu
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Qingyu Wang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Deling Kong
- Key Laboratory of Bioactive Materials of Ministry of Education, State Key Laboratory of Medicinal Chemical Biology, College of Life Science, Nankai University, Tianjin 300071, China
| | - Zhihong Wang
- Institute of Transplant Medicine, Nankai University School of Medicine, Tianjin 300071, China
| | - Jing Liu
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| |
Collapse
|
2
|
Lin DSH, Chao YT, Chuang SL, Lee JK, Lin TT, Lin LC, Huang KC, Hwang JJ. Effects of Sacubitril/Valsartan on Survival in Patients with Heart Failure and Significant Valvular Heart Disease. Clin Pharmacol Ther 2024. [PMID: 39148369 DOI: 10.1002/cpt.3417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Accepted: 07/22/2024] [Indexed: 08/17/2024]
Abstract
Although the benefits of sacubitril/valsartan in heart failure with reduced ejection fraction (HFrEF) are well established, patients with hemodynamically significant mitral regurgitation (MR) were excluded from pivotal trials. We aimed to assess the effects of sacubitril/valsartan on survival in patients with HFrEF and concomitant significant MR. All patients from a single center who underwent echocardiography between June 2008 and December 2020, with a left ventricular ejection fraction (LVEF) of less than 40% and hemodynamically significant MR were recruited. Patients were categorized according to drug use and year of the index echocardiogram into the angiotensin receptor/neprilysin inhibitor (ARNI), non-ARNI before 2017, and non-ARNI after 2017 groups. Patients in the ARNI and non-ARNI after 2017 groups were compared directly, whereas patients in the non-ARNI before 2017 group were matched to the ARNI group in a 3:1 ratio. The outcome of interest was all-cause mortality. Death was compared between the groups using univariate and multivariate Cox proportional hazard models. After exclusion by criteria and matching, there remained 610 patients in the ARNI group, 434 in the non-ARNI after 2017 group, and 1,722 in the non-ARNI before 2017 group. During follow-up, all-cause mortality was significantly lower in the ARNI group compared with both non-ARNI after 2017 and non-ARNI before 2017 groups. Multivariate analysis of both pairs of comparison between groups found the use of ARNI to be significantly associated with increased survival. In patients with HFrEF and concomitant significant MR, treatment with sacubitril/valsartan was associated with lower risks of all-cause death.
Collapse
Affiliation(s)
- Donna Shu-Han Lin
- Division of Cardiology¸Department of Internal Medicine, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan
| | - Ying-Ting Chao
- Department of Medical Research, Integrative Medical Database Center, National Taiwan University Hospital, Taipei, Taiwan
| | - Shu-Lin Chuang
- Department of Medical Research, Integrative Medical Database Center, National Taiwan University Hospital, Taipei, Taiwan
| | - Jen-Kuang Lee
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
- Cardiovascular Center, National Taiwan University Hospital, Taipei, Taiwan
- Department of Internal Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Laboratory Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
- Telehealth Center, National Taiwan University Hospital, Taipei, Taiwan
| | - Ting-Tse Lin
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
- Cardiovascular Center, National Taiwan University Hospital, Taipei, Taiwan
- Department of Internal Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Lung-Chun Lin
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
- Cardiovascular Center, National Taiwan University Hospital, Taipei, Taiwan
- Department of Internal Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Kuan-Chih Huang
- Department of Internal Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital, Hsinchu, Taiwan
| | - Juey-Jen Hwang
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
- Department of Internal Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
- Fu Jen Catholic University Hospital, New Taipei City, Taiwan
| |
Collapse
|
3
|
Cao D, Albani S, Gall E, Hovasse T, Unterseeh T, Seknadji P, Champagne S, Garot P, Sayah N, Akodad M. Aortic Valve-in-Valve Procedures: Challenges and Future Directions. J Clin Med 2024; 13:4723. [PMID: 39200865 PMCID: PMC11355095 DOI: 10.3390/jcm13164723] [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: 07/03/2024] [Revised: 08/05/2024] [Accepted: 08/06/2024] [Indexed: 09/02/2024] Open
Abstract
Aortic valve-in-valve (ViV) procedures are increasingly performed for the treatment of surgical bioprosthetic valve failure in patients at intermediate to high surgical risk. Although ViV procedures offer indisputable benefits in terms of procedural time, in-hospital length of stay, and avoidance of surgical complications, they also present unique challenges. Growing awareness of the technical difficulties and potential threats associated with ViV procedures mandates careful preprocedural planning. This review article offers an overview of the current state-of-the-art ViV procedures, with focus on patient and device selection, procedural planning, potential complications, and long-term outcomes. Finally, it discusses current research efforts and future directions aimed at improving ViV procedural success and patient outcomes.
Collapse
Affiliation(s)
- Davide Cao
- Ramsay Générale de Santé, Institut Cardiovasculaire Paris Sud, 6 Avenue du Noyer Lambert, 91100 Massy, France
- Department of Biomedical Sciences, Humanitas University, 20072 Pieve Emanuele, Italy
| | - Stefano Albani
- Ramsay Générale de Santé, Institut Cardiovasculaire Paris Sud, 6 Avenue du Noyer Lambert, 91100 Massy, France
- Division of Cardiology, U. Parini Hospital, 11100 Aosta, Italy
| | - Emmanuel Gall
- Ramsay Générale de Santé, Institut Cardiovasculaire Paris Sud, 6 Avenue du Noyer Lambert, 91100 Massy, France
- Department of Cardiology, University Hospital of Lariboisiere, Université Paris-Cité, (Assistance Publique des Hôpitaux de Paris, AP-HP), 75010 Paris, France
- Inserm MASCOT—UMRS 942, University Hospital of Lariboisiere, 75010 Paris, France
- MIRACL.ai Laboratory, Multimodality Imaging for Research and Artificial Intelligence Core Laboratory, University Hospital of Lariboisiere (AP-HP), 75010 Paris, France
| | - Thomas Hovasse
- Ramsay Générale de Santé, Institut Cardiovasculaire Paris Sud, 6 Avenue du Noyer Lambert, 91100 Massy, France
| | - Thierry Unterseeh
- Ramsay Générale de Santé, Institut Cardiovasculaire Paris Sud, 6 Avenue du Noyer Lambert, 91100 Massy, France
| | - Patrick Seknadji
- Ramsay Générale de Santé, Institut Cardiovasculaire Paris Sud, 6 Avenue du Noyer Lambert, 91100 Massy, France
| | - Stéphane Champagne
- Ramsay Générale de Santé, Institut Cardiovasculaire Paris Sud, 6 Avenue du Noyer Lambert, 91100 Massy, France
| | - Philippe Garot
- Ramsay Générale de Santé, Institut Cardiovasculaire Paris Sud, 6 Avenue du Noyer Lambert, 91100 Massy, France
| | - Neila Sayah
- Ramsay Générale de Santé, Institut Cardiovasculaire Paris Sud, 6 Avenue du Noyer Lambert, 91100 Massy, France
| | - Mariama Akodad
- Ramsay Générale de Santé, Institut Cardiovasculaire Paris Sud, 6 Avenue du Noyer Lambert, 91100 Massy, France
| |
Collapse
|
4
|
Notarianni AP, Montealegre-Gallegos M, Pospishil L. Looking With New Eyes: The Updated Guidelines for the Evaluation of Prosthetic Valve Function With Cardiovascular Imaging. J Cardiothorac Vasc Anesth 2024; 38:1611-1614. [PMID: 38862289 DOI: 10.1053/j.jvca.2024.03.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Accepted: 03/29/2024] [Indexed: 06/13/2024]
Affiliation(s)
- Andrew P Notarianni
- Division of Cardiothoracic Anesthesiology and Critical Care, Department of Anesthesiology, Yale University School of Medicine, 333 Cedar St., TMP 3, PO Box 208051, New Haven, CT 06520
| | - Mario Montealegre-Gallegos
- Division of Cardiac Anesthesiology and Critical Care, Department of Anesthesiology, Yale University School of Medicine, 333 Cedar St., TMP 3, PO Box 208051, New Haven, CT 06520
| | - Liliya Pospishil
- Department of Anesthesiology, Perioperative Care, and Pain Medicine, NYU Grossman School of Medicine, 550 First Avenue TH 530, New York, NY 10016
| |
Collapse
|
5
|
Das D, Jothimani G, Banerjee A, Dey A, Duttaroy AK, Pathak S. A brief review on recent advances in diagnostic and therapeutic applications of extracellular vesicles in cardiovascular disease. Int J Biochem Cell Biol 2024; 173:106616. [PMID: 38992790 DOI: 10.1016/j.biocel.2024.106616] [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: 03/19/2024] [Revised: 07/02/2024] [Accepted: 07/02/2024] [Indexed: 07/13/2024]
Abstract
Extracellular vesicles (EVs) are important mediators of intercellular communication within the cardiovascular system, playing essential roles in physiological homeostasis and contributing to the pathogenesis of various cardiovascular diseases (CVDs). However, their potential as diagnostic biomarkers and therapeutic agents in rare cardiovascular diseases, such as valvular heart disease (VHD) and cardiomyopathies, remains largely unexplored. This review comprehensively emphasizes recent advancements in extracellular vesicle research, explicitly highlighting their growing significance in diagnosing and potentially treating rare cardiovascular diseases, with a particular focus on valvular heart disease and cardiomyopathies. We highlight the potential of extracellular vesicle-based liquid biopsies as non-invasive tools for early disease detection and risk stratification, showcasing specific extracellular vesicle-associated biomarkers (proteins, microRNAs, lipids) with diagnostic and prognostic value. Furthermore, we discussed the therapeutic promise of extracellular vesicles derived from various sources, including stem cells and engineered extracellular vesicles, for cardiac repair and regeneration through their ability to modulate inflammation, promote angiogenesis, and reduce fibrosis. By integrating the findings and addressing critical knowledge gaps, this review aims to stimulate further research and innovation in extracellular vesicle-based diagnostics and therapeutics of cardiovascular disease.
Collapse
Affiliation(s)
- Diptimayee Das
- Faculty of Allied Health Sciences, Chettinad Academy of Research and Education (CARE), Chettinad Hospital and Research Institute (CHRI), Kelambakkam, Tamil Nadu 603103, India
| | - Ganesan Jothimani
- Faculty of Allied Health Sciences, Chettinad Academy of Research and Education (CARE), Chettinad Hospital and Research Institute (CHRI), Kelambakkam, Tamil Nadu 603103, India
| | - Antara Banerjee
- Faculty of Allied Health Sciences, Chettinad Academy of Research and Education (CARE), Chettinad Hospital and Research Institute (CHRI), Kelambakkam, Tamil Nadu 603103, India
| | - Amit Dey
- Faculty of Allied Health Sciences, Chettinad Academy of Research and Education (CARE), Chettinad Hospital and Research Institute (CHRI), Kelambakkam, Tamil Nadu 603103, India
| | - Asim K Duttaroy
- Department of Nutrition, Institute of Medical Sciences, Faculty of Medicine, University of Oslo, Norway.
| | - Surajit Pathak
- Faculty of Allied Health Sciences, Chettinad Academy of Research and Education (CARE), Chettinad Hospital and Research Institute (CHRI), Kelambakkam, Tamil Nadu 603103, India.
| |
Collapse
|
6
|
Srinivasan N, Gullapalli N, Shah KS. Highlighting the South Asian Heart Failure Epidemic. Card Fail Rev 2024; 10:e07. [PMID: 39144581 PMCID: PMC11322948 DOI: 10.15420/cfr.2023.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 04/18/2024] [Indexed: 08/16/2024] Open
Abstract
Heart failure (HF) remains a progressive syndrome with high morbidity and mortality, and accounts for many hospitalisations globally with a downstream impact of increasing healthcare costs. South Asian individuals account for most of the global burden of non-communicable diseases. In this systematic review, a literature search was performed for all studies focusing on South Asians and HF using PubMed as the primary research tool and citations were included from relevant MEDLINE-indexed journals. Upon identification of relevant studies, pertinent data points were extracted systematically from each eligible study. South Asians have an earlier age of onset of many non-communicable diseases compared to other ethnic groups worldwide, including cardiovascular disease (CVD). Given the large number of South Asians impacted by CVD and both traditional and non-traditional risk factors for CVD, HF has the potential to become an epidemic among South Asians across the world. Individuals of South Asian origin are at elevated risk for CVD compared to many other populations and should be followed closely for the potential development of HF. This review describes what is unique to South Asian individuals at risk for and with established HF, as well as management and prognostic considerations. Future directions and potential policy changes are highlighted that can reduce the HF burden among South Asians globally.
Collapse
Affiliation(s)
| | - Nagesh Gullapalli
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Utah Salt Lake City, UT, US
| | - Kevin S Shah
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Utah Salt Lake City, UT, US
| |
Collapse
|
7
|
Goyal A, Sulaiman SA, Safi D, Mehta K, Jain H, Jain J, Maheshwari S, Mahalwar G. Transcatheter Edge-to-Edge Repair in Valvular Heart Disease: A Comprehensive Exploration of Equipment, Efficacy, Gender, Racial, and Socioeconomic Disparities, and Future Prospects. Cardiol Rev 2024:00045415-990000000-00292. [PMID: 38970476 DOI: 10.1097/crd.0000000000000742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/08/2024]
Abstract
The 2 primary components of valvular heart disease are mitral regurgitation (MR) and tricuspid regurgitation (TR). Transcatheter edge-to-edge repair (TEER) is an advanced, minimally invasive procedure that has recently displayed encouraging outcomes in the treatment of these pathologies. TEER offers a nonsurgical alternative for individuals diagnosed with conditions deemed to be high-risk surgical candidates. Currently, the TEER procedure employs devices such as MitraCLIP and TriCLIP, as well as innovative PASCAL (transcatheter valve repair system used for mitral and tricuspid valve repair) and FORMA (repair system used for tricuspid valve repair) repair systems. In the COAPT (Cardiovascular Outcomes Assessment of the MitraClip Percutaneous Therapy for Heart Failure Patients with Functional Mitral Regurgitation) trial enrolling 614 patients to test the efficacy of TEER in MR, a significant reduction in hospitalization due to heart failure was observed at 24 months in the MitraClip + guideline-directed medical therapy (GDMT) group (35.8%) than in the GDMT-alone group (67.9%), HR, 0.53; P < 0.001, lower rate of all-cause mortality at 29.1% compared with 46.1% (P < 0.001), lower risk of cerebrovascular events (P = 0.001), and lower mortality due to cardiovascular events (P < 0.001). In another trial, patients with moderate TR or greater than New York Heart Association Class II or higher underwent TEER using the TriClip for the management of TR. The outcomes were encouraging, with 86% of patients showing a reduction in TR severity of at least one grade. As the technology and research surrounding TEER continue to progress, a more extensive range of patients are expected to qualify for TEER procedures. Our comprehensive review sought to extensively explore the background, equipment used, effectiveness of MR and TR, potential side effects, future prospects, and ongoing trials associated with TEER. We further discuss the existing gender, racial, and socioeconomic disparities in the realm of TEER.
Collapse
Affiliation(s)
- Aman Goyal
- From the Department of Internal Medicine, Seth GS Medical College and KEM Hospital, Mumbai, India
| | - Samia Aziz Sulaiman
- Department of Internal Medicine, School of Medicine, University of Jordan, Amman, Jordan
| | - Darsh Safi
- Department of Internal Medicine, Seth GS Medical College and KEM Hospital, Mumbai, India
| | - Kahan Mehta
- Department of Internal Medicine, GMERS Medical College-Vadodara, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat, India
| | - Hritvik Jain
- Department of Internal Medicine, All India Institute of Medical Sciences (AIIMS)-Jodhpur, Jodhpur, Rajasthan, India
| | - Jyoti Jain
- Department of Internal Medicine, All India Institute of Medical Sciences (AIIMS)-Jodhpur, Jodhpur, Rajasthan, India
| | - Surabhi Maheshwari
- Department of Internal Medicine, G.M.E.R.S. Medical College and Hospital, Sola, Gujarat, India
| | - Gauranga Mahalwar
- Department of Internal Medicine, Cleveland Clinic Foundation, Cleveland, OH
| |
Collapse
|
8
|
Ktenopoulos N, Katsaros O, Apostolos A, Drakopoulou M, Tsigkas G, Tsioufis C, Davlouros P, Toutouzas K, Karanasos A. Emerging Transcatheter Therapies for Valvular Heart Disease: Focus on Mitral and Tricuspid Valve Procedures. Life (Basel) 2024; 14:842. [PMID: 39063596 PMCID: PMC11277877 DOI: 10.3390/life14070842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 06/22/2024] [Accepted: 06/27/2024] [Indexed: 07/28/2024] Open
Abstract
The emergence of percutaneous treatment options provides novel therapeutic alternatives for older and feeble patients who are at high risk for any surgical procedure. The purpose of our review was to offer an up-to-date analysis of the rapidly expanding field of percutaneous technologies for mitral, tricuspid, and pulmonary procedures. Edge-to-edge repair is an established treatment for secondary mitral regurgitation (MR), while transcatheter mitral valve replacement is a potential and expanding option for managing both secondary and primary MR. However, additional advancements are necessary to enhance the safety and feasibility of this procedure. Transcatheter tricuspid intervention is an emerging option that was conceived after the success of transcatheter procedures in aortic and mitral valves, and it is currently still in the early stages of advancement. This can be attributed, at least in part, to the previously overlooked effect of tricuspid regurgitation on patient outcomes. The development of edge-to-edge repair represents the forefront of innovations in transcatheter procedures. There is a scarcity of data about tricuspid annuloplasty and replacement, and further study is necessary. Transcatheter mitral, tricuspid, and pulmonary procedures show prospects for the future, while their role in clinical practice has not been definitively established.
Collapse
Affiliation(s)
- Nikolaos Ktenopoulos
- First Department of Cardiology, National and Kapodistrian University of Athens, Hippokration General Hospital of Athens, 11527 Athens, Greece; (N.K.); (O.K.); (A.A.); (M.D.); (C.T.); (K.T.)
| | - Odysseas Katsaros
- First Department of Cardiology, National and Kapodistrian University of Athens, Hippokration General Hospital of Athens, 11527 Athens, Greece; (N.K.); (O.K.); (A.A.); (M.D.); (C.T.); (K.T.)
| | - Anastasios Apostolos
- First Department of Cardiology, National and Kapodistrian University of Athens, Hippokration General Hospital of Athens, 11527 Athens, Greece; (N.K.); (O.K.); (A.A.); (M.D.); (C.T.); (K.T.)
| | - Maria Drakopoulou
- First Department of Cardiology, National and Kapodistrian University of Athens, Hippokration General Hospital of Athens, 11527 Athens, Greece; (N.K.); (O.K.); (A.A.); (M.D.); (C.T.); (K.T.)
| | - Grigorios Tsigkas
- Department of Cardiology, Patras University Hospital, 26504 Patras, Greece; (G.T.); (P.D.)
| | - Constantinos Tsioufis
- First Department of Cardiology, National and Kapodistrian University of Athens, Hippokration General Hospital of Athens, 11527 Athens, Greece; (N.K.); (O.K.); (A.A.); (M.D.); (C.T.); (K.T.)
| | - Periklis Davlouros
- Department of Cardiology, Patras University Hospital, 26504 Patras, Greece; (G.T.); (P.D.)
| | - Konstantinos Toutouzas
- First Department of Cardiology, National and Kapodistrian University of Athens, Hippokration General Hospital of Athens, 11527 Athens, Greece; (N.K.); (O.K.); (A.A.); (M.D.); (C.T.); (K.T.)
| | - Antonios Karanasos
- Department of Cardiology, Patras University Hospital, 26504 Patras, Greece; (G.T.); (P.D.)
| |
Collapse
|
9
|
Pasledni R, Kozarski M, Mizerski JK, Darowski M, Okrzeja P, Zieliński K. The hybrid (physical-computational) cardiovascular simulator to study valvular diseases. J Biomech 2024; 170:112173. [PMID: 38805856 DOI: 10.1016/j.jbiomech.2024.112173] [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: 12/15/2023] [Revised: 05/20/2024] [Accepted: 05/23/2024] [Indexed: 05/30/2024]
Abstract
To better understand the impact of valvular heart disease (VHD) on the hemodynamics of the circulatory system, investigations can be carried out using a model of the cardiovascular system. In this study, a previously developed hybrid (hydro-numerical) simulator of the cardiovascular system (HCS) was adapted and used. In our HCS Björk-Shiley mechanical heart valves were used, playing the role of mitral and aortic ones. In order to simulate aortic stenosis (AS) and mitral regurgitation (MR), special mechanical devices have been developed and integrated with the HCS. The simulation results proved that the system works correctly. Namely, in the case of AS - the mean pulmonary arterial pressure was increased due to increased preload of the left ventricle and the decrease in right ventricular preload was caused by a decrease in systemic arterial pressure. The severity of AS was performed based on the transaortic pressure gradient as well as using the Gorlin and Aaslid equations. In the case of severe AS, when the mean gradient was above 40 mmHg, the aortic valve orifice area was 0.5 cm2, which is in line with ACC/AHA guidelines. For the case of MR - with increasing severity of MR, there was a decrease in the left ventricular pressure and an increase in left atrial pressure. Using mechanical heart valves to simulate VHD by the HCS can be a valuable tool for biomedical research, providing a safe and controlled environment to study and understand the pathophysiology of VHD.
Collapse
Affiliation(s)
- Raman Pasledni
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Ks. Trojdena 4, 02-109 Warsaw, Poland.
| | - Maciej Kozarski
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Ks. Trojdena 4, 02-109 Warsaw, Poland
| | - Jeremi Kaj Mizerski
- Department of Cardiac Surgery, The Pope John Paul II Province Hospital, Aleje Jana Pawla II 10, 22-400 Zamosc, Poland
| | - Marek Darowski
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Ks. Trojdena 4, 02-109 Warsaw, Poland
| | - Piotr Okrzeja
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Ks. Trojdena 4, 02-109 Warsaw, Poland
| | - Krzysztof Zieliński
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Ks. Trojdena 4, 02-109 Warsaw, Poland
| |
Collapse
|
10
|
Jalali Y, Jalali M, Števlík J. Perioperative Management of Valvular Heart Disease in Patients Undergoing Non-Cardiac Surgery. J Clin Med 2024; 13:3240. [PMID: 38892948 PMCID: PMC11173198 DOI: 10.3390/jcm13113240] [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: 03/12/2024] [Revised: 05/10/2024] [Accepted: 05/28/2024] [Indexed: 06/21/2024] Open
Abstract
Postoperative cardiovascular complications (either in a hospital or within 30 days after the operation) are among the most common problems with non-cardiac surgeries (NCSs). Pre-existing cardiac comorbidities add significant risk to the development of such complications. Valvular heart disease (VHD), a rather frequent cardiac comorbidity (especially in the elderly population), can pose serious life-threatening peri-/postoperative complications. Being familiar with the recommended perioperative management of patients with VHD or an implanted prosthetic heart valve who are scheduled for NCS is of great importance in daily clinical practice. Although recently published guidelines by the European Society of Cardiology (ESC) and the American College of Cardiology and American Heart Association (ACC/AHA) for the management of VHD and perioperative management of patients undergoing NCS addresses the mentioned problem, a comprehensive review of the guidelines that provides an easy-to-use summary of the recommendations and their similarities and differences is missing in the published literature. In this review article, we summarize all of the relevant important information based on the latest data published in both guidelines needed for practical decision-making in the perioperative management of patients with VHD or after valvular repair (with prosthetic heart valve) who are scheduled for NCS.
Collapse
Affiliation(s)
- Yashar Jalali
- Faculty of Medicine, Comenius University in Bratislava, 5th Department of Internal Medicine, University Hospital Bratislava, Ružinov, Špitálska 24, 813 72 Bratislava, Slovakia, and Ružinovská 4810/6, 821 01 Bratislava, Slovakia; (M.J.); (J.Š.)
| | | | | |
Collapse
|
11
|
Reskovic Luksic V, Separovic Hanzevacki J, Trung MLN, Petitjean H, Lancellotti P. The burden and challenges of managing aortic stenosis. Acta Cardiol 2024; 79:98-100. [PMID: 38032272 DOI: 10.1080/00015385.2023.2286690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 11/16/2023] [Indexed: 12/01/2023]
Affiliation(s)
- Vlatka Reskovic Luksic
- Department of Cardiovascular Diseases, University of Zagreb School of Medicine and University Hospital Centre Zagreb, Zagreb, Croatia
| | - Jadranka Separovic Hanzevacki
- Department of Cardiovascular Diseases, University of Zagreb School of Medicine and University Hospital Centre Zagreb, Zagreb, Croatia
| | - Mai-Linh Nguyen Trung
- Department of Cardiology, CHU Sart Tilman, University of Liège Hospital, GIGA Cardiovascular Sciences, Liège, Belgium
| | - Hélène Petitjean
- Department of Cardiology, CHU Sart Tilman, University of Liège Hospital, GIGA Cardiovascular Sciences, Liège, Belgium
| | - Patrizio Lancellotti
- Department of Cardiology, CHU Sart Tilman, University of Liège Hospital, GIGA Cardiovascular Sciences, Liège, Belgium
| |
Collapse
|
12
|
Wu Y, Wang X, Zhou M, Huang Z, Liu L, Cong L. Application of eHealth Tools in Anticoagulation Management After Cardiac Valve Replacement: Scoping Review Coupled With Bibliometric Analysis. JMIR Mhealth Uhealth 2024; 12:e48716. [PMID: 38180783 PMCID: PMC10799280 DOI: 10.2196/48716] [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: 05/05/2023] [Revised: 07/20/2023] [Accepted: 12/07/2023] [Indexed: 01/06/2024] Open
Abstract
BACKGROUND Anticoagulation management can effectively prevent complications in patients undergoing cardiac valve replacement (CVR). The emergence of eHealth tools provides new prospects for the management of long-term anticoagulants. However, there is no comprehensive summary of the application of eHealth tools in anticoagulation management after CVR. OBJECTIVE Our objective is to clarify the current state, trends, benefits, and challenges of using eHealth tools in the anticoagulation management of patients after CVR and provide future directions and recommendations for development in this field. METHODS This scoping review follows the 5-step framework developed by Arksey and O'Malley. We searched 5 databases such as PubMed, MEDLINE, Web of Science, CINAHL, and Embase using keywords such as "eHealth," "anticoagulation," and "valve replacement." We included papers on the practical application of eHealth tools and excluded papers describing the underlying mechanisms for developing eHealth tools. The search time ranged from the database inception to March 1, 2023. The study findings were reported according to the PRISMA-ScR (Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews). Additionally, VOSviewer (version 1.6.18) was used to construct visualization maps of countries, institutions, authors, and keywords to investigate the internal relations of included literature and to explore research hotspots and frontiers. RESULTS This study included 25 studies that fulfilled the criteria. There were 27,050 participants in total, with the sample size of the included studies ranging from 49 to 13,219. The eHealth tools mainly include computer-based support systems, electronic health records, telemedicine platforms, and mobile apps. Compared to traditional anticoagulation management, eHealth tools can improve time in therapeutic range and life satisfaction. However, there is no significant impact observed in terms of economic benefits and anticoagulation-related complications. Bibliometric analysis suggests the potential for increased collaboration and opportunities among countries and academic institutions. Italy had the widest cooperative relationships. Machine learning and artificial intelligence are the popular research directions in anticoagulation management. CONCLUSIONS eHealth tools exhibit promise for clinical applications in anticoagulation management after CVR, with the potential to enhance postoperative rehabilitation. Further high-quality research is needed to explore the economic benefits of eHealth tools in long-term anticoagulant therapy and the potential to reduce the occurrence of adverse events.
Collapse
Affiliation(s)
- Ying Wu
- Center for Moral Culture, Hunan Normal University, Changsha, China
- School of Medicine, Hunan Normal University, Changsha, China
| | - Xiaohui Wang
- School of Medicine, Hunan Normal University, Changsha, China
| | - Mengyao Zhou
- School of Medicine, Hunan Normal University, Changsha, China
| | - Zhuoer Huang
- School of Medicine, Hunan Normal University, Changsha, China
| | - Lijuan Liu
- Teaching and Research Section of Clinical Nursing, Xiangya Hospital of Central South University, Changsha, China
| | - Li Cong
- School of Medicine, Hunan Normal University, Changsha, China
| |
Collapse
|
13
|
Akintoye O, Musa A, Gyau-Ampong C, Usamah B, Olakanmi D. A systematic review and meta-analysis on outcomes of valvular heart surgery in Africa. World J Surg 2024; 48:228-239. [PMID: 38284764 DOI: 10.1002/wjs.12019] [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: 10/11/2023] [Accepted: 10/21/2023] [Indexed: 01/30/2024]
Abstract
INTRODUCTION The prevalence of valvular heart diseases remain considerably high in Africa, largely but not solely due to rheumatic heart disease. Valvular heart surgeries have emerged as the cornerstone in their management. While several studies have reported data on outcomes following heart valve surgery in many developed countries, there is a staggering paucity of data and evidence reporting the outcomes in the Africa population. The aim of this study is to report the perioperative outcomes following valvular heart surgery in Africa. METHODS The Preferred Reporting Items for Systematic Reviews and Meta-analysis guideline was utilized. Electronic searches were performed using PubMed, African journal online, and Research gate from inception to June 2023. The primary endpoints were overall mortality and 30-day mortality, and secondary endpoints included postoperative complications, length of hospital, and intensive care stays. The outcome data were pooled together and analyzed with the random effect model for proportions and mean for meta-analysis using the R software. RESULTS This systematic review identified 31 studies that fulfilled the study eligibility criteria and all were observational studies. The countries in which these studies were carried out include South Africa, Ethiopia, Egypt, Mali, Rwanda, Nigeria, Cameroon, Ghana, Senegal, Tanzania, and Kenya. Statistical analysis reported a pooled overall mortality of 10.48% and a pooled 30-day mortality of 4.59%. CONCLUSION Several obstacles, such as lack of financial resources and inadequate infrastructure, continue to impede valvular heart surgery practice in many parts of Africa. Future studies need to focus on identifying factors associated with this poor early mortality.
Collapse
Affiliation(s)
| | - Abdulmalik Musa
- Cardiothoracic Surgery, Surgery Interest Group of Research, Lagos, Nigeria
| | | | - Barakah Usamah
- Cardiothoracic Surgery, Surgery Interest Group of Research, Lagos, Nigeria
| | - Damilare Olakanmi
- Cardiothoracic Surgery, Surgery Interest Group of Research, Lagos, Nigeria
| |
Collapse
|
14
|
Drăgan A, Mateescu AD. Novel Biomarkers and Advanced Cardiac Imaging in Aortic Stenosis: Old and New. Biomolecules 2023; 13:1661. [PMID: 38002343 PMCID: PMC10669288 DOI: 10.3390/biom13111661] [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: 09/30/2023] [Revised: 11/12/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023] Open
Abstract
Currently, the symptomatic status and left ventricular ejection fraction (LVEF) play a crucial role in aortic stenosis (AS) assessment. However, the symptoms are often subjective, and LVEF is not a sensitive marker of left ventricle (LV) decompensation. Over the past years, the cardiac structure and function research on AS has increased due to advanced imaging modalities and potential therapies. New imaging parameters emerged as predictors of disease progression in AS. LV global longitudinal strain has proved useful for risk stratification in asymptomatic severe AS patients with preserved LVEF. The assessment of myocardial fibrosis by cardiac magnetic resonance is the most studied application and offers prognostic information on AS. Moreover, the usage of biomarkers in AS as objective measures of LV decompensation has recently gained more interest. The present review focuses on the transition from compensatory LV hypertrophy (H) to LV dysfunction and the biomarkers associated with myocardial wall stress, fibrosis, and myocyte death. Moreover, we discuss the potential impact of non-invasive imaging parameters for optimizing the timing of aortic valve replacement and provide insight into novel biomarkers for possible prognostic use in AS. However, data from randomized clinical trials are necessary to define their utility in daily practice.
Collapse
Affiliation(s)
- Anca Drăgan
- Department of Cardiovascular Anaesthesiology and Intensive Care, Emergency Institute for Cardiovascular Diseases “Prof Dr C C Iliescu”, 258 Fundeni Road, 022328 Bucharest, Romania
| | - Anca Doina Mateescu
- Department of Cardiology, Emergency Institute for Cardiovascular Diseases “Prof Dr C C Iliescu”, 258 Fundeni Road, 022328 Bucharest, Romania;
| |
Collapse
|
15
|
Zvyagina AI, Minaychev VV, Kobyakova MI, Lomovskaya YV, Senotov AS, Pyatina KV, Akatov VS, Fadeev RS, Fadeeva IS. Soft Biomimetic Approach for the Development of Calcinosis-Resistant Glutaraldehyde-Fixed Biomaterials for Cardiovascular Surgery. Biomimetics (Basel) 2023; 8:357. [PMID: 37622962 PMCID: PMC10452421 DOI: 10.3390/biomimetics8040357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 08/01/2023] [Accepted: 08/06/2023] [Indexed: 08/26/2023] Open
Abstract
Pathological aseptic calcification is the most common form of structural valvular degeneration (SVD), leading to premature failure of heart valve bioprostheses (BHVs). The processing methods used to obtain GA-fixed pericardium-based biomaterials determine the hemodynamic characteristics and durability of BHVs. This article presents a comparative study of the effects of several processing methods on the degree of damage to the ECM of GA-fixed pericardium-based biomaterials as well as on their biostability, biocompatibility, and resistance to calcification. Based on the assumption that preservation of the native ECM structure will enable the creation of calcinosis-resistant materials, this study provides a soft biomimetic approach for the manufacture of GA-fixed biomaterials using gentle decellularization and washing methods. It has been shown that the use of soft methods for preimplantation processing of materials, ensuring maximum preservation of the intactness of the pericardial ECM, radically increases the resistance of biomaterials to calcification. These obtained data are of interest for the development of new calcinosis-resistant biomaterials for the manufacture of BHVs.
Collapse
Affiliation(s)
- Alyona I. Zvyagina
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia (V.S.A.); (R.S.F.)
| | - Vladislav V. Minaychev
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia (V.S.A.); (R.S.F.)
| | - Margarita I. Kobyakova
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia (V.S.A.); (R.S.F.)
| | - Yana V. Lomovskaya
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia (V.S.A.); (R.S.F.)
| | - Anatoliy S. Senotov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia (V.S.A.); (R.S.F.)
| | - Kira V. Pyatina
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia (V.S.A.); (R.S.F.)
- Pushchino State Institute of Natural Science, 142290 Pushchino, Russia
| | - Vladimir S. Akatov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia (V.S.A.); (R.S.F.)
- Pushchino State Institute of Natural Science, 142290 Pushchino, Russia
| | - Roman S. Fadeev
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia (V.S.A.); (R.S.F.)
- Pushchino State Institute of Natural Science, 142290 Pushchino, Russia
| | - Irina S. Fadeeva
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia (V.S.A.); (R.S.F.)
- Pushchino State Institute of Natural Science, 142290 Pushchino, Russia
| |
Collapse
|
16
|
Ekambaram K, Hassan K. Establishing a Novel Diagnostic Framework Using Handheld Point-of-Care Focused-Echocardiography (HoPE) for Acute Left-Sided Cardiac Valve Emergencies: A Bayesian Approach for Emergency Physicians in Resource-Limited Settings. Diagnostics (Basel) 2023; 13:2581. [PMID: 37568944 PMCID: PMC10416975 DOI: 10.3390/diagnostics13152581] [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: 06/13/2023] [Revised: 07/23/2023] [Accepted: 08/02/2023] [Indexed: 08/13/2023] Open
Abstract
Acute severe cardiac valve emergencies, such as acute severe mitral regurgitation (AMR) and acute severe aortic regurgitation (AAR), present significant challenges in terms of diagnosis and management. Handheld point-of-care ultrasound devices have emerged as potentially pivotal tools in ensuring the prompt and accurate diagnosis of these left-sided valve emergencies by emergency physicians, particularly in resource-limited settings. Despite the increased utilisation of point-of-care ultrasound by emergency physicians for the management of patients in states of acute cardiorespiratory failure, current diagnostic protocols cannot perform sufficient quantitative assessments of the left-sided cardiac valves. This review elucidates and evaluates the diagnostic utility of handheld point-of-care focused-echocardiography (HoPE) in native AMR and AAR by reviewing the relevant literature and the use of clinical case examples from the Emergency Department at Port Shepstone Regional Hospital (PSRH-ED)-a rural, resource-limited hospital located in KwaZulu-Natal, South Africa. Combining the findings of the review and clinical case illustrations, this review proceeds to synthesise a novel, Bayesian-inspired, iterative diagnostic framework that integrates HoPE into the evaluation of patients with acute cardiorespiratory failure and suspected severe left-sided valve lesions.
Collapse
Affiliation(s)
- Kamlin Ekambaram
- Port Shepstone Regional Hospital, University of KwaZulu-Natal, Durban 4041, South Africa
| | - Karim Hassan
- Life Bay View Private Hospital, Mossel Bay 6506, South Africa;
| |
Collapse
|
17
|
Zeng L, Pi P, Zhang P, Zhu Y, Yang L, Wang C. Exercise as the Key to Improve Cardiopulmonary Function in Patients with Valvular Heart Disease: A Systematic Review and Meta-Analysis. Rev Cardiovasc Med 2023; 24:237. [PMID: 39076695 PMCID: PMC11266775 DOI: 10.31083/j.rcm2408237] [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: 03/30/2023] [Revised: 05/18/2023] [Accepted: 06/01/2023] [Indexed: 07/31/2024] Open
Abstract
Background Valvular heart disease (VHD) is a type of cardiovascular disease with abnormal heart valve structure and/or function and a rapidly growing cause of global cardiovascular morbidity and mortality. Physical inactivity is a problem for patients with VHD, especially after surgery. However, there is no data on the effects of exercise on VHD from large multicentre randomised controlled trials (RCTs). Therefore, we conducted a systematic review and meta-analysis to provide a comprehensive analysis of small RCTs to evaluate the effects of exercise on cardiopulmonary function in patients with VHD and provide an evidence-based medicine basis for developing and guiding the clinical application of exercise in patients with VHD. Methods We conducted a systematic review and meta-analysis of RCTs. We systematically searched electronic databases (PubMed, Web of Science, Embase, Cochrane Central Register of Controlled Trials, China National Knowledge Infrastructure [CNKI], China Science and Technology Journal Database [VIP], WanFang Database, and SinoMed [CBM]) for all studies on exercise and VHD from their inception to January 2023. The quality of included studies was assessed using the Cochrane risk-of-bias tool. The primary outcomes were the six-minute walk test distance (6MWD), left ventricular ejection fraction (LVEF), and short-form 36-item health survey (SF-36). Results This systematic review included 22 RCTs with 1520 subjects (869 men and 651 women). The meta-analysis results showed that exercise significantly improved exercise capacity measured by the 6MWD (mean difference [MD] = 25.54, 95% confidence interval [CI] = 19.98-31.11, I 2 = 0%, p < 0.00001), LVEF (MD = 6.20, 95% CI = 4.76-7.65, I 2 = 66%, p < 0.00001), and quality of life measured by the SF-36 (physical function: MD = 3.42, 95% CI = 2.12-4.72, I 2 = 12%, p < 0.00001; mental health: MD = 3.86, 95% CI = 0.52-7.20, I 2 = 68%, p = 0.020; social function: MD = 2.30, 95% CI = 0.64-3.97, I 2 = 45%, p = 0.007; bodily pain: MD = 2.60, 95% CI = 0.83-4.37, I 2 = 22%, p = 0.004) in patients with VHD compared to healthy controls. Conclusions This study suggests that exercise can significantly improve cardiopulmonary function, enhance physical and social function, reduce bodily pain, and potentially improve mental health in patients with VHD, providing an evidence-based basis for better recovery in patients with VHD.
Collapse
Affiliation(s)
- Liqing Zeng
- School of Sports Medicine and Rehabilitation, Beijing Sport University,
100084 Beijing, China
| | - Peng Pi
- School of Sports Medicine and Rehabilitation, Beijing Sport University,
100084 Beijing, China
| | - Peizhen Zhang
- School of Sports Medicine and Rehabilitation, Beijing Sport University,
100084 Beijing, China
| | - Yu Zhu
- School of Sports Medicine and Rehabilitation, Beijing Sport University,
100084 Beijing, China
- Department of Rehabilitation Medicine, Linfen Central Hospital, 041000
Linfen, Shanxi, China
| | - Lumeng Yang
- School of Sports Medicine and Rehabilitation, Beijing Sport University,
100084 Beijing, China
| | - Chen Wang
- School of Sports Medicine and Rehabilitation, Beijing Sport University,
100084 Beijing, China
| |
Collapse
|