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Parizher G, Ali A, Cremer PC. Evaluation and Management of Mechanical Heart Valve Dysfunction and Thrombosis. Curr Cardiol Rep 2024; 26:747-755. [PMID: 38789693 DOI: 10.1007/s11886-024-02074-x] [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] [Accepted: 05/14/2024] [Indexed: 05/26/2024]
Abstract
PURPOSE OF REVIEW Dysfunction and thrombosis of mechanical heart valves, although uncommon, represents a challenge that requires multidisciplinary expertise for diagnosis and management. The aim of this review is to summarize strengths and weaknesses of diagnostic methods and therapeutic strategies for this uncommon but potentially life-threatening pathology. RECENT FINDINGS Expeditious diagnosis of mechanical valve thrombosis and exclusion of other diagnostic considerations, often with incorporation of multimodality imaging, can inform the best treatment strategy. Presentation of mechanical valve thrombosis can be asymptomatic or can include heart failure, life-threatening embolic events, or cardiogenic shock. Echocardiography, fluoroscopy and computed tomography are important in the evaluation of mechanical valve dysfunction. Therapeutic strategies for thrombosis include anticoagulation, systemic thrombolysis, and surgery. Choice of treatment depends on multiple factors including thrombus size, degree of valve dysfunction, clinical presentation, and available surgical expertise.
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Affiliation(s)
- Gary Parizher
- Section of Cardiovascular Imaging, Heart, Vascular, and Thoracic Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Ambreen Ali
- Section of Cardiovascular Imaging, Heart, Vascular, and Thoracic Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Paul C Cremer
- Division of Cardiology, Departments of Medicine and Radiology, Northwestern University Feinberg School of Medicine, Bluhm Cardiovascular Institute, Northwestern Medicine, 676 N St Clair Street, Suite 730, Chicago, IL, 60611, USA.
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2
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Tkachenko A. Hemocompatibility studies in nanotoxicology: Hemolysis or eryptosis? (A review). Toxicol In Vitro 2024; 98:105814. [PMID: 38582230 DOI: 10.1016/j.tiv.2024.105814] [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: 01/29/2024] [Revised: 03/13/2024] [Accepted: 04/03/2024] [Indexed: 04/08/2024]
Abstract
Hemocompatibility evaluation is an important step in nanotoxicological studies. It is generally accepted that nanomaterials promote lysis of erythrocytes, blood clotting, alter phagocytosis, and upregulate pro-inflammatory cytokines. However, there are no standardized guidelines for testing nanomaterials hemocompatibility despite the fact that nanomaterials enter the bloodstream and interact with blood cells. In this review, the current knowledge on the ability of nanomaterials to induce distinct cell death modalities of erythrocytes is highlighted primarily focusing on hemolysis and eryptosis. This review aims to summarize the molecular mechanisms underlying erythrotoxicity of nanomaterials and critically compare the sensitivity and efficiency of hemolysis or eryptosis assays for nanomaterials blood compatibility testing. The list of eryptosis-inducing nanomaterials is growing, but it is still difficult to generalize how physico-chemical properties of nanoparticles affect eryptosis degree and molecular mechanisms involved. Thus, another aim of this review is to raise the awareness of eryptosis as a nanotoxicological tool to encourage the corresponding studies. It is worthwhile to consider adding eryptosis to in vitro nanomaterials hemocompatibility testing protocols and guidelines.
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Affiliation(s)
- Anton Tkachenko
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 25250 Vestec, Czech Republic.
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3
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Hevessy Z, Toth G, Antal-Szalmas P, Tokes-Fuzesi M, Kappelmayer J, Karai B, Ajzner E. Algorithm of differential diagnosis of anemia involving laboratory medicine specialists to advance diagnostic excellence. Clin Chem Lab Med 2024; 62:410-420. [PMID: 37823455 DOI: 10.1515/cclm-2023-0807] [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: 07/28/2023] [Accepted: 10/03/2023] [Indexed: 10/13/2023]
Abstract
OBJECTIVES Anemia is a severe global public health issue. Testing practices for anemia suggest overuse of screening laboratory tests and misinterpretation of studies even in "easy-to-diagnose" underlying causes, leading to late diagnoses and missed treatment opportunities. We aimed to develop a complete and efficient algorithm for clinical pathologists and laboratory medicine physicians for the differential diagnosis of anemia. METHODS Comprehensive literature search encompassing original articles, studies, reviews, gold standard books, and other evidence. RESULTS We created a complex algorithm, primarily for clinical pathology/laboratory use, that explores all major and several rare causes of anemia in an efficient and evidence-based manner. The algorithm includes gold-standard diagnostic laboratory tests available in most clinical laboratories and indices that can be easily calculated to provide an evidence-based differential diagnosis of anemia. CONCLUSIONS The diagnostic strategy combines previously available diagnostic tests and protocols in an efficient order. Clinical pathologists following the algorithm can independently provide valuable diagnostic support for healthcare providers. Clinical pathologists providing complete differential diagnostic services with the proposed algorithm may create an opportunity for an advanced diagnostic service that supports diagnostic excellence and helps patients receive a timely diagnosis and early treatment opportunities.
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Affiliation(s)
- Zsuzsanna Hevessy
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Gabor Toth
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Peter Antal-Szalmas
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Margit Tokes-Fuzesi
- Department of Laboratory Medicine, University of Pecs, Medical School, Pecs, Hungary
| | - Janos Kappelmayer
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Bettina Karai
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Eva Ajzner
- Central Laboratory of Szabolcs-Szatmar-Bereg County Teaching Hospital, Nyiregyhaza, Hungary
- Hematology Unit of South-Pest Central Hospital and National Institute of Hematology and Infectology, Budapest, Hungary
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4
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Jamil Y, Farhat K, Ansari E. Recognition and management of hemolysis following transcatheter aortic valve replacement in a patient with chronic kidney disease. CARDIOVASCULAR REVASCULARIZATION MEDICINE 2024; 59:14-16. [PMID: 37481372 DOI: 10.1016/j.carrev.2023.07.009] [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: 06/12/2023] [Accepted: 07/18/2023] [Indexed: 07/24/2023]
Abstract
A 79-year-old female with chronic kidney disease (CKD) and transthoracic aortic valve replacement presented with exertional dyspnea and was found to have hemolysis due to moderate paravalvular leak. Balloon dilatation resolved symptoms and anemia. Detecting hemolysis related to paravalvular leak is challenging due to CKD, possibly leading to bone marrow suppression.
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Affiliation(s)
- Yasser Jamil
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA.
| | - Kassem Farhat
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Ehsan Ansari
- Cardiology Associates, Waterbury Hospital, CT, USA
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5
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Feng W, Xiao Y. Advances in diagnosis and treatment of mechanical hemolysis following percutaneous interventional for valvular heart diseases. ZHONG NAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF CENTRAL SOUTH UNIVERSITY. MEDICAL SCIENCES 2023; 48:1397-1402. [PMID: 38044651 PMCID: PMC10929870 DOI: 10.11817/j.issn.1672-7347.2023.230078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Indexed: 12/05/2023]
Abstract
Valvular heart disease is one of the common heart diseases in clinical practice, characterized by valve stenosis and/or incomplete closure. At present, drug therapy, surgery, and emerging percutaneous intervention therapy are the main treating methods for heart valve disease. Although the research and development of percutaneous intervention therapy devices is relatively mature, there are still problems such as postoperative mechanical hemolysis. The occurrence of mechanical hemolysis is associated with factors such as excessive shear stress experienced by red blood cells, direct interaction between red blood cells and the heart and valve surfaces, and thrombus formation. Furthermore, the presence of postoperative infection and other hemolytic diseases can also affect the occurrence of mechanical hemolysis. Although most patients are asymptomatic when hemolysis occurs, there are still critical cases. This type of hemolysis can accelerate the deterioration of the condition, and even endanger life in severe cases. Therefore, elucidating the background, pathogenesis, epidemiology, and related clinical research progress of mechanical hemolysis after percutaneous intervention therapy for valvular heart disease is of great significance for guiding the standardized diagnosis and treatment of the disease.
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Affiliation(s)
- Weiting Feng
- Department of Cardiovascular Medicine, Second Xiangya Hospital, Central South University, Changsha 410011.
- Xiangya School of Medicine, Central South University, Changsha 410013, China.
| | - Yichao Xiao
- Department of Cardiovascular Medicine, Second Xiangya Hospital, Central South University, Changsha 410011.
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Varma PK, Vijayakumar M, Bhuvaneshwar GS, Kumar AS, Krishna N. Long-term evaluation of TTK Chitra™ heart valve prosthesis - a retrospective-prospective cohort study. Indian J Thorac Cardiovasc Surg 2023; 39:14-26. [PMID: 36531667 PMCID: PMC9735205 DOI: 10.1007/s12055-022-01437-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 10/25/2022] [Accepted: 10/28/2022] [Indexed: 12/04/2022] Open
Abstract
Purpose The TTK Chitra™ heart valve has more than 1,40,000 implantations so far, but no long-term data has been published. This study aims to provide long-term results of the valve. Methodology A cohort of 476 patients with implantations from January 2006 to December 2018 were followed up prospectively consisting of 104 aortic valve replacement (AVR), 87 double valve replacement (DVR), and 285 mitral valve replacement (MVR) patients. Total follow-up was 4079 patient-years (py) (AVR = 983, MVR = 2392, DVR = 704), being 96% complete. Results The results showed that actuarial survival at 15 years was 82.3% for AVR, 60.7% for MVR, and 52.2% for DVR. Freedom from all valve-related mortality and morbidity at 15 years was 73.8%, 64.8%, and 61.9% for AVR, MVR, and DVR, respectively. There was one instance of structural failure of valve disc leading to severe valvar regurgitation. Valve thrombosis incidence was 1 in AVR (0.1%/py), 6 in MVR (0.25%/py), and 1 in DVR (0.14%/py). Thrombo-embolic episodes occurred in 50 patients (AVR = 7 patients at 0.7%/py; MVR = 36 patients at 1.5%/py; DVR = 7 patients at 0.99%/py) and major hemorrhage (bleeding) in 24 patients (AVR = 0.61%/py; MVR = 0.5%/py; and DVR = 0.85%/py). The linearized rates of adverse events in this study were found to be lower than earlier published results. Conclusion The results highlight the continued safety and performance of the TTK Chitra™ heart valve (TTKCHV) in the long term at 15 years. Supplementary Information The online version contains supplementary material available at 10.1007/s12055-022-01437-9.
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Affiliation(s)
- Praveen Kerala Varma
- Department of Cardiovascular and Thoracic Surgery, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham (Amrita University), Kochi, India
| | - Maniyal Vijayakumar
- Department of Cardiology, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham (Amrita University), Kochi, India
| | | | - Adarsh Syla Kumar
- Department of Cardiovascular and Thoracic Surgery, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham (Amrita University), Kochi, India
| | - Neethu Krishna
- Department of Cardiovascular and Thoracic Surgery, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham (Amrita University), Kochi, India
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7
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Bhardwaj B, Golwala H, Song HK, Lantz G, Chadderdon S, Zahr F. Haemolysis resolution after transcatheter valve in valve within a prior mitral annuloplasty ring: a case report. Eur Heart J Case Rep 2022; 6:ytac326. [PMID: 36131810 PMCID: PMC9486913 DOI: 10.1093/ehjcr/ytac326] [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: 02/15/2022] [Revised: 03/22/2022] [Accepted: 07/29/2022] [Indexed: 11/12/2022]
Abstract
Background Transcatheter mitral valve in ring procedure has emerged as a minimally invasive alternative to re-do surgery among patients with failed mitral annuloplasty rings. Uncommonly, haemolysis presents as a complication after the percutaneous valvular procedures and often require aggressive measures to correct paravalvular leaks and mechanical collision. Case summary We report a case of an 82-year-old female who underwent a transcatheter valve in ring procedure (Edwards Sapien S3, Edwards Lifesciences) for symptomatic severe mitral regurgitation from a bioprosthetic annuloplasty ring failure complicated by acute haemolytic anaemia a week after the procedure manifesting as dark coloured urine, profound icterus, and acute renal injury. She was treated with a post-dilation balloon valvuloplasty leading to reduction in haemolysis, but the patient was readmitted with acute haemolysis episode again. At this time, a decision was made to perform a repeat valve in valve TMVR with a 29 mm S3 Edwards Sapien valve which led to a resolution of haemolysis. Discussion In this case, the leaflets of previously placed S3 valve sealed the blood flow through the valve frame thus diverting the blood flow away from the area of collision leading to resolution of haemolysis.
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Affiliation(s)
- Bhaskar Bhardwaj
- Knight Cardiovascular Institute, Oregon Health and Science University , Portland, OR 97223 , USA
| | - Harsh Golwala
- Knight Cardiovascular Institute, Oregon Health and Science University , Portland, OR 97223 , USA
| | - Howard K Song
- Division of Cardiothoracic Surgery, Department of Surgery, Oregon Health & Science University , Portland, OR 97223 , USA
| | - Gurion Lantz
- Division of Cardiothoracic Surgery, Department of Surgery, Oregon Health & Science University , Portland, OR 97223 , USA
| | - Scott Chadderdon
- Knight Cardiovascular Institute, Oregon Health and Science University , Portland, OR 97223 , USA
| | - Firas Zahr
- Knight Cardiovascular Institute, Oregon Health and Science University , Portland, OR 97223 , USA
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Balthazar T, Bennett J, Adriaenssens T. Hemolysis during short-term mechanical circulatory support: from pathophysiology to diagnosis and treatment. Expert Rev Med Devices 2022; 19:477-488. [PMID: 35912874 DOI: 10.1080/17434440.2022.2108319] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Despite advances in heart failure therapies and percutaneous coronary interventions, survival for cardiogenic shock remains poor. Percutaneous ventricular assist devices (pVAD) are increasingly used, but current evidence remains conflicting. The Impella is an example of such a device, based on a catheter mounted micro-axial continuous flow pump, that has been rapidly adopted in routine practice. An important aspect in the post implantation care is the prevention of complications. Hemolysis is one of the more frequent complications seen with this device. AREAS COVERED In this review we discuss the pathophysiology, diagnosis and treatment of hemolysis in patients supported with a pVAD. A practical algorithm for rapid identification of hemolysis and the underlying cause is presented, allowing for early treatment and prevention of further complications. EXPERT OPINION Hemolysis remains a threat to patients supported with any mechanical circulatory support device. Prevention as well as treatment demands for sufficient knowledge about the device, the optimal position and hemodynamics. Future studies should try to clarify some of the elements that are still unclear such as optimal anticoagulation, the place of pentoxyfilline or extracorporeal removal of free hemoglobin. This could help to optimize outcomes in clinical practice as well as future studies.
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Affiliation(s)
- Tim Balthazar
- University Hospitals Brussel, Department of Cardiology, Jette, Belgium
| | - Johan Bennett
- University Hospitals Leuven, Department of Cardiovascular Medicine, Leuven, Belgium.,Katholieke Universiteit Leuven, Department of Cardiovascular Sciences, Leuven, Belgium
| | - Tom Adriaenssens
- University Hospitals Leuven, Department of Cardiovascular Medicine, Leuven, Belgium.,Katholieke Universiteit Leuven, Department of Cardiovascular Sciences, Leuven, Belgium
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9
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Aljalloud A, Spetsotaki K, Tewarie L, Rossato L, Steinseifer U, Autschbach R, Menne M. Stent deformation in a sutureless aortic valve bioprosthesis: a pilot observational analysis using imaging and three-dimensional modelling. Eur J Cardiothorac Surg 2021; 62:6427438. [PMID: 34791144 DOI: 10.1093/ejcts/ezab485] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 09/21/2021] [Accepted: 09/26/2021] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES The goal of this analysis of the Perceval aortic bioprosthesis was to investigate the ovalization/deformation of the Perceval prosthesis stent after implantation and its propensity for cusp dysfunction, fluttering, fibrosis and blockage. METHODS Between August 2014 and May 2019, a total of 134 patients (52% female) underwent aortic valve replacement with the Perceval bioprosthesis. We reconstructed three-dimensional models of the Perceval stent using thorax computed tomography scans for 16 patients employing the software Mimics (Materialise NV, Leuven, Belgium) and analysed the ovality of the stents. Radial force (RF) measurements were performed to compare the stiffness of the Perceval bioprosthesis to that of other valves. RESULTS The three-dimensional reconstructions showed that all Perceval stents exhibited some degree of deformation and ovalization. Ovality in the annulus and commissure section of the Perceval stents ranged from 6.8% to 45% with mean values of 13.6% and 21.9%, respectively. The RF of the Perceval prosthesis was noticeably lower than that of the Edwards Intuity and several transcatheter aortic valve implantation devices. The stent adopted the preoperative shape of the aorta in the 2 patients for whom pre- and postoperative computed tomography data existed. CONCLUSIONS The Perceval bioprostheses were deformed to different degrees in all analysed cases. The comparably low RFs might be an explanation for the propensity towards this deformation, which can lead to fluttering, a reduction of the cusps' mobility. This condition could potentially result in fibrosis as well as increased transvalvular pressure gradients and might be the cause for the increase in lactate dehydrogenase and the decrease in platelet count.
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Affiliation(s)
- Ali Aljalloud
- Department of Thoracic and Cardiovascular Surgery, RWTH University Hospital Aachen, Aachen, Germany.,Department of Cardiology, Rhein Maas Klinikum, Würselen, Germany
| | - Konstantina Spetsotaki
- Department of Thoracic and Cardiovascular Surgery, RWTH University Hospital Aachen, Aachen, Germany
| | - Lachmandath Tewarie
- Department of Thoracic and Cardiovascular Surgery, RWTH University Hospital Aachen, Aachen, Germany
| | - Leonardo Rossato
- Department of Cardiovascular Engineering, Institute of Applied Medical Engineering, Helmholtz Institute, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Ulrich Steinseifer
- Department of Cardiovascular Engineering, Institute of Applied Medical Engineering, Helmholtz Institute, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Ruediger Autschbach
- Department of Thoracic and Cardiovascular Surgery, RWTH University Hospital Aachen, Aachen, Germany
| | - Matthias Menne
- Department of Cardiovascular Engineering, Institute of Applied Medical Engineering, Helmholtz Institute, Medical Faculty, RWTH Aachen University, Aachen, Germany
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Li J, Duan QJ. Severe hemolytic anemia and acute renal failure after mitral valve repair associated with non-endothelialization of artificial chordae tendinae: case report. J Cardiothorac Surg 2021; 16:303. [PMID: 34656162 PMCID: PMC8520182 DOI: 10.1186/s13019-021-01686-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 10/08/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Mechanical hemolytic anemia and acute renal failure are rare complications of mitral valve repair. CASE PRESENTATION We report a unique case of severe hemolytic anemia and severe acute renal failure after mitral valve repair using artificial chordae tendinae. Conservative therapy including plasmapheresis and blood transfusion was not effective. The major cause of the mechanical hemolysis was mild mitral regurgitation originating from the centre of the valve and striking the annuloplasty ring. The hemolytic anemia resolved gradually after the replacement of mitral valve. The new artificial chordae tendinae was found to be completely non-endothelialized in the surgery. Non-endothelialization of artificial chordae tendinae may also play a role in the genesis of mechanical anemia. CONCLUSIONS The major cause of the mechanical hemolysis was mild mitral regurgitation originating from the centre of the valve and striking the annuloplasty ring. Non-endothelialization of foreign materials might be another mechanism of hemolysis after mitral repair.
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Affiliation(s)
- Jing Li
- Department of Cardiology, The Second Affiliated Hospital of Zhejiang University, Hangzhou, China
| | - Qun-Jun Duan
- Department of Cardiovascular Surgery, The Second Affiliated Hospital of Zhejiang University, School of Medicine, #88 Jiefang Road, Hangzhou, 310009, China.
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Ladha D, Khamisa K, Promislow S. Anémie hémolytique et nouveau souffle cardiaque chez un homme de 77 ans. CMAJ 2021; 193:E1511-E1512. [PMID: 34580148 PMCID: PMC8486479 DOI: 10.1503/cmaj.202620-f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Danyal Ladha
- Département de médecine de l'Hôpital d'Ottawa (Ladha, Khamisa), Université d'Ottawa, Ont.; Section de la cardiologie (Promislow), Université du Manitoba, Winnipeg, Man.
| | - Karima Khamisa
- Département de médecine de l'Hôpital d'Ottawa (Ladha, Khamisa), Université d'Ottawa, Ont.; Section de la cardiologie (Promislow), Université du Manitoba, Winnipeg, Man
| | - Steven Promislow
- Département de médecine de l'Hôpital d'Ottawa (Ladha, Khamisa), Université d'Ottawa, Ont.; Section de la cardiologie (Promislow), Université du Manitoba, Winnipeg, Man
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12
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Ugurel E, Goksel E, Goktas P, Cilek N, Atar D, Yalcin O. A Novel Fragmentation Sensitivity Index Determines the Susceptibility of Red Blood Cells to Mechanical Trauma. Front Physiol 2021; 12:714157. [PMID: 34512387 PMCID: PMC8424113 DOI: 10.3389/fphys.2021.714157] [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: 05/24/2021] [Accepted: 07/26/2021] [Indexed: 11/13/2022] Open
Abstract
Supraphysiological shear stresses (SSs) induce irreversible impairments of red blood cell (RBC) deformability, overstretching of RBC membrane, or fragmentation of RBCs that causes free hemoglobin to be released into plasma, which may lead to anemia. The magnitude and exposure tisme of the SSs are two critical parameters that determine the hemolytic threshold of a healthy RBC. However, impairments in the membrane stability of damaged cells reduce the hemolytic threshold and increase the susceptibility of the cell membrane to supraphysiological SSs, leading to cell fragmentation. The severity of the RBC fragmentation as a response to the mechanical damage and the critical SS levels causing fragmentation are not previously defined. In this study, we investigated the RBC mechanical damage in oxidative stress (OS) and metabolic depletion (MD) models by applying supraphysiological SSs up to 100 Pa by an ektacytometer (LORRCA MaxSis) and then assessed RBC deformability. Next, we examined hemolysis and measured RBC volume and count by Multisizer 3 Coulter Counter to evaluate RBC fragmentation. RBC deformability was significantly impaired in the range of 20-50 Pa in OS compared with healthy controls (p < 0.05). Hemolysis was detected at 90-100 Pa SS levels in MD and all applied SS levels in OS. Supraphysiological SSs increased RBC volume in both the damage models and the control group. The number of fragmented cells increased at 100 Pa SS in the control and MD and at all SS levels in OS, which was accompanied by hemolysis. Fragmentation sensitivity index increased at 50-100 Pa SS in the control, 100 Pa SS in MD, and at all SS levels in OS. Therefore, we propose RBC fragmentation as a novel sensitivity index for damaged RBCs experiencing a mechanical trauma before they undergo fragmentation. Our approach for the assessment of mechanical risk sensitivity by RBC fragmentation could facilitate the close monitoring of shear-mediated RBC response and provide an effective and accurate method for detecting RBC damage in mechanical circulatory assist devices used in routine clinical procedures.
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Affiliation(s)
- Elif Ugurel
- Research Center for Translational Medicine (KUTTAM), Koç University, Istanbul, Turkey.,School of Medicine, Koç University, Istanbul, Turkey
| | - Evrim Goksel
- Research Center for Translational Medicine (KUTTAM), Koç University, Istanbul, Turkey.,School of Medicine, Koç University, Istanbul, Turkey.,Graduate School of Health Sciences, Koç University, Istanbul, Turkey
| | - Polat Goktas
- School of Medicine, Koç University, Istanbul, Turkey.,Centre for Applied Data Analytics Research (CeADAR), School of Computer Science, University, College Dublin, Dublin, Ireland
| | - Neslihan Cilek
- Research Center for Translational Medicine (KUTTAM), Koç University, Istanbul, Turkey.,School of Medicine, Koç University, Istanbul, Turkey.,Graduate School of Health Sciences, Koç University, Istanbul, Turkey
| | - Dila Atar
- School of Medicine, Koç University, Istanbul, Turkey
| | - Ozlem Yalcin
- Research Center for Translational Medicine (KUTTAM), Koç University, Istanbul, Turkey.,School of Medicine, Koç University, Istanbul, Turkey
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13
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Ladha D, Khamisa K, Promislow S. Hemolytic anemia and a new murmur in a 77-year-old man. CMAJ 2021; 193:E1389. [PMID: 34493566 PMCID: PMC8443292 DOI: 10.1503/cmaj.202620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Danyal Ladha
- Department of Medicine (Ladha, Khamisa), Ottawa Hospital Department of Medicine at the University of Ottawa, Ont.; Section of Cardiology (Promislow), University of Manitoba, Winnipeg, Man.
| | - Karima Khamisa
- Department of Medicine (Ladha, Khamisa), Ottawa Hospital Department of Medicine at the University of Ottawa, Ont.; Section of Cardiology (Promislow), University of Manitoba, Winnipeg, Man
| | - Steven Promislow
- Department of Medicine (Ladha, Khamisa), Ottawa Hospital Department of Medicine at the University of Ottawa, Ont.; Section of Cardiology (Promislow), University of Manitoba, Winnipeg, Man
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14
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Abstract
PURPOSE OF REVIEW Given the low occurrence of clinically important paravalvular leak (PVL), there are no large registries or trials in this space to investigate management strategies. This review integrates newer evidence, particularly in imaging guidance for these complex procedures, novel techniques and approaches that our group has taken, as well as approaches to more complex PVL plugging reported in case reports. RECENT FINDINGS Perhaps the largest area of growth in the management of PVL is the use of advanced imaging in both pre-procedure evaluation and intra-procedural guidance with gated cardiac CT, 3D TEE, and fluoroscopy fusion technologies. Outside the USA, a new device, the Occlutech PLD, has become available with early data indicating high success rates. There remains little randomized data to support the efficacy of percutaneous PVL closure. Gated cardiac CT has become key to the pre-procedure evaluation for transcatheter closure as it allows for increased procedural efficiency and more accurate pre-procedure planning, particularly when combined with 3D printing. Intra-procedural TEE-fluoro fusion allows for more rapid crossing of defects by providing a visual target for interventionalists. The advent of purpose-built devices for PVL closure may further increase the efficacy and efficiency of percutaneous closure, but significant barriers remain for approval of these devices in the USA.
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Affiliation(s)
- Aken Desai
- Division of Cardiovascular Medicine, Department of Medicine, University of Colorado Anschutz School of Medicine, 12401 E. 17th Ave, Leprino Building, Room 511, Mail Stop B132, Aurora, CO, 80045, USA.
| | - John C Messenger
- Division of Cardiovascular Medicine, Department of Medicine, University of Colorado Anschutz School of Medicine, 12401 E. 17th Ave, Leprino Building, Room 511, Mail Stop B132, Aurora, CO, 80045, USA
| | - Robert Quaife
- Division of Cardiovascular Medicine, Department of Medicine, University of Colorado Anschutz School of Medicine, 12401 E. 17th Ave, Leprino Building, Room 511, Mail Stop B132, Aurora, CO, 80045, USA
| | - John Carroll
- Division of Cardiovascular Medicine, Department of Medicine, University of Colorado Anschutz School of Medicine, 12401 E. 17th Ave, Leprino Building, Room 511, Mail Stop B132, Aurora, CO, 80045, USA
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15
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Haberka M, Malczewska M, Pysz P, Kozłowski M, Wojakowski W, Smolka G. Cardiovascular magnetic resonance and transesophageal echocardiography in patients with prosthetic valve paravalvular leaks: towards an accurate quantification and stratification. J Cardiovasc Magn Reson 2021; 23:31. [PMID: 33745455 PMCID: PMC7983376 DOI: 10.1186/s12968-021-00722-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 02/01/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Objective assessment of prosthetic paravalvular leak (PVL) is complex and challenging even in transesophageal echocardiography (TEE). Our aim was to assess the value of cardiovascular magnetic resonance (CMR) in quantifying PVL in aortic (AVR) or mitral valve (MVR) replacement. METHODS Thirty-one patients (62 ± 15.1 years, 63% males) with a preliminary diagnosis of significant PVL (AVR, n-23; MVR, n = 8) were recruited. The TEE PVL grading was based on the semi-quantitative (SQ) TEE according to the VARC II PVL classification (%PVL: mild < 10%; moderate 10%-30%; severe > 30%). Non-contrast CMR studies were acquired at 1.5 T with a quantitative approach (phase-contrast velocity encoded imaging). The CMR PVL severity was classified according to regurgitant fraction (RF: (1) mild ≤ 20%, (2) moderate 21%-39%, or (3) severe ≥ 40%). RESULTS All patients revealed symptoms of heart failure (71%: New York Heart Association [NYHA] II; 91%: N-terminal pro-B-type natriuretic peptide [NT-proBNP] > 150 pg/ml) and typical cardiovascular disease risk factors. The SQ-TEE results revealed several categories: (1) mild (n = 5; 16%), (2) moderate (n = 21; 67%), and (3) severe (n = 5; 16%) PVL. However, CMR PVL RF reclassified the severity of PVL: (1) mild to moderate (in 80%), (2) moderate to severe (in 47%), and (3) severe to moderate (in 40%). The receiver operating characteristic analysis showed that SQ-TEE and CMR PVL-vol and -RF predicted the upper tertile of NT-proBNP (> 2000 pg/ml) with the best sensitivity for CMR parameters. CONCLUSION The SQ-TEE showed moderate agreement with CMR and underestimated a considerable number of AVR or MVR-PVL.
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Affiliation(s)
- Maciej Haberka
- Department of Cardiology, Medical University of Silesia, Ziołowa 45/47, 40-635, Katowice, Poland.
| | - Magdalena Malczewska
- Department of Cardiology and Structural Heart Diseases, Medical University of Silesia, Katowice, Poland
| | - Piotr Pysz
- Department of Cardiology and Structural Heart Diseases, Medical University of Silesia, Katowice, Poland
- Department of Cardiac Rehabilitation, Treatment and Rehabilitation Center, Long-Term Care Hospital, Jaworze, Poland
| | - Michał Kozłowski
- Department of Cardiology and Structural Heart Diseases, Medical University of Silesia, Katowice, Poland
| | - Wojciech Wojakowski
- Department of Cardiology and Structural Heart Diseases, Medical University of Silesia, Katowice, Poland
| | - Grzegorz Smolka
- Department of Cardiology and Structural Heart Diseases, Medical University of Silesia, Katowice, Poland
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16
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Malhotra R, Namasivayam M, Ghoshhajra BB, Passeri JJ, Hoenig PA, Stone JR. Case 36-2020: A 72-Year-Old Woman with Dark Urine and Weakness. N Engl J Med 2020; 383:2066-2076. [PMID: 33207098 DOI: 10.1056/nejmcpc2027077] [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] [Indexed: 11/19/2022]
Affiliation(s)
- Rajeev Malhotra
- From the Departments of Medicine (R.M., M.N., J.J.P.), Radiology (B.B.G.), and Pathology (J.R.S.), Massachusetts General Hospital, and the Departments of Medicine (R.M., M.N., J.J.P.), Radiology (B.B.G.), and Pathology (J.R.S.), Harvard Medical School - both in Boston, and the Department of Internal Medicine, Emerson Hospital, Concord, MA (P.A.H.)
| | - Mayooran Namasivayam
- From the Departments of Medicine (R.M., M.N., J.J.P.), Radiology (B.B.G.), and Pathology (J.R.S.), Massachusetts General Hospital, and the Departments of Medicine (R.M., M.N., J.J.P.), Radiology (B.B.G.), and Pathology (J.R.S.), Harvard Medical School - both in Boston, and the Department of Internal Medicine, Emerson Hospital, Concord, MA (P.A.H.)
| | - Brian B Ghoshhajra
- From the Departments of Medicine (R.M., M.N., J.J.P.), Radiology (B.B.G.), and Pathology (J.R.S.), Massachusetts General Hospital, and the Departments of Medicine (R.M., M.N., J.J.P.), Radiology (B.B.G.), and Pathology (J.R.S.), Harvard Medical School - both in Boston, and the Department of Internal Medicine, Emerson Hospital, Concord, MA (P.A.H.)
| | - Jonathan J Passeri
- From the Departments of Medicine (R.M., M.N., J.J.P.), Radiology (B.B.G.), and Pathology (J.R.S.), Massachusetts General Hospital, and the Departments of Medicine (R.M., M.N., J.J.P.), Radiology (B.B.G.), and Pathology (J.R.S.), Harvard Medical School - both in Boston, and the Department of Internal Medicine, Emerson Hospital, Concord, MA (P.A.H.)
| | - Peter A Hoenig
- From the Departments of Medicine (R.M., M.N., J.J.P.), Radiology (B.B.G.), and Pathology (J.R.S.), Massachusetts General Hospital, and the Departments of Medicine (R.M., M.N., J.J.P.), Radiology (B.B.G.), and Pathology (J.R.S.), Harvard Medical School - both in Boston, and the Department of Internal Medicine, Emerson Hospital, Concord, MA (P.A.H.)
| | - James R Stone
- From the Departments of Medicine (R.M., M.N., J.J.P.), Radiology (B.B.G.), and Pathology (J.R.S.), Massachusetts General Hospital, and the Departments of Medicine (R.M., M.N., J.J.P.), Radiology (B.B.G.), and Pathology (J.R.S.), Harvard Medical School - both in Boston, and the Department of Internal Medicine, Emerson Hospital, Concord, MA (P.A.H.)
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17
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Kanzaki H, Shimahara Y, Amaki M, Okada A, Fujita T, Izumi C, Yasuda S, Kobayashi J. Transcatheter Aortic Valve Replacement for Aortic Stenosis With Prosthetic Mitral Paravalvular Leak and Hemolytic Anemia. JACC Case Rep 2020; 2:2146-2150. [PMID: 34317126 PMCID: PMC8299977 DOI: 10.1016/j.jaccas.2020.07.064] [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: 03/09/2020] [Revised: 07/07/2020] [Accepted: 07/21/2020] [Indexed: 11/15/2022]
Abstract
This report describes a successful transcatheter aortic valve replacement in an older patient with severe aortic stenosis, mitral paravalvular leak, and associated hemolytic anemia. Transcatheter aortic valve replacement is worth considering as a first-line procedure in this high-risk patient because of its beneficial impact on reducing shear forces at the mitral valve. (Level of Difficulty: Intermediate.).
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Affiliation(s)
- Hideaki Kanzaki
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Yusuke Shimahara
- Department of Cardiac Surgery, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Makoto Amaki
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Atsushi Okada
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Tomoyuki Fujita
- Department of Cardiac Surgery, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Chisato Izumi
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Satoshi Yasuda
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Junjiro Kobayashi
- Department of Cardiac Surgery, National Cerebral and Cardiovascular Center, Osaka, Japan
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18
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Koh LY, Hwang NC. Red-Colored Urine in the Cardiac Surgical Patient-Diagnosis, Causes, and Management. J Cardiothorac Vasc Anesth 2020; 35:3774-3788. [PMID: 33199113 DOI: 10.1053/j.jvca.2020.10.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 10/08/2020] [Accepted: 10/12/2020] [Indexed: 11/11/2022]
Abstract
Red-colored urine occurring in the intraoperative and early postoperative periods after cardiac surgery is often a cause for concern. This observation may be a result of hematuria from pathology within the urinary tract, anticoagulant-related nephropathy, drug-induced acute interstitial nephropathy, excretion of heme pigment-containing proteins, such as myoglobin and hemoglobin, and hemolysis occurring during extracorporeal circulation. Within the kidneys, heme-containing compounds result in pigment nephropathy, which is a significant contributory factor to cardiac surgery-associated acute kidney injury. Concerted efforts to reduce red blood cell damage during cardiopulmonary bypass, together with early recognition of the at-risk patient and the institution of prompt therapeutic intervention, may improve outcomes. This review addresses the diagnosis, causes, and management of red-discolored urine occurring during and after cardiac surgery.
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Affiliation(s)
- Li Ying Koh
- Department of Anaesthesiology, Singapore General Hospital, Singapore; Department of Cardiothoracic Anaesthesia, National Heart Centre, Singapore
| | - Nian Chih Hwang
- Department of Anaesthesiology, Singapore General Hospital, Singapore; Department of Cardiothoracic Anaesthesia, National Heart Centre, Singapore.
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19
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Širáková A, Toušek P, Bednář F, Línková H, Laboš M, Sulženko J, Havlíková M, Neuberg M, Kočka V. Intravascular haemolysis after transcatheter aortic valve implantation with self-expandable prosthesis: incidence, severity, and impact on long-term mortality. Eur Heart J Suppl 2020; 22:F44-F50. [PMID: 32694953 PMCID: PMC7361667 DOI: 10.1093/eurheartj/suaa098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/07/2020] [Indexed: 12/02/2022]
Abstract
We aimed to determine the incidence, severity, and long-term impact of intravascular haemolysis after self-expanding transcatheter aortic valve implantation (TAVI). We believe this should be evaluated before extending the indications of TAVI to younger low-risk patients. Prospective, academic, single centre study of 94 consecutive patients treated with supra-annular self-expandable TAVI prosthesis between April 2009 and January 2014. Haemolysis at 1-year post-TAVI was defined per the published criteria based on levels of haemoglobin, reticulocyte and schistocyte count, lactate dehydrogenase (LDH), and haptoglobin. All patients had long-term clinical follow-up (6 years). The incidence of haemolysis at 1-year follow-up varied between 9% and 28%, based on different haemolysis definitions. Haemolysis was mild in all cases, no patient had markedly increased LDH levels. The presence of moderate/severe paravalvular aortic regurgitation was associated with haemolysis (7.7% vs. 23.1%, P = 0.044) and aortic valve area post-TAVI did not differ between groups with or without haemolysis (1.01 vs. 0.92 cm2/m2, P = 0.23) (definition including schistocyte count). The presence of haemolysis did not have any impact on patient prognosis after 6 years with log-rank test P = 0.80. Intravascular haemolysis after TAVI with self-expandable prosthesis is present in 9–28% of patients depending on the definition of haemolysis. The presence of haemolysis is associated with moderate/severe paravalvular aortic regurgitation but not with post-TAVI aortic valve area. Haemolysis is mild with no impact on prognosis.
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Affiliation(s)
- Andrea Širáková
- Cardiocenter, University Hospital Královské Vinohrady and 3rd Faculty of Medicine, Charles University, Ruská 87, Prague 10 100 00, Czech Republic
| | - Petr Toušek
- Cardiocenter, University Hospital Královské Vinohrady and 3rd Faculty of Medicine, Charles University, Ruská 87, Prague 10 100 00, Czech Republic
| | - František Bednář
- Cardiocenter, University Hospital Královské Vinohrady and 3rd Faculty of Medicine, Charles University, Ruská 87, Prague 10 100 00, Czech Republic
| | - Hana Línková
- Cardiocenter, University Hospital Královské Vinohrady and 3rd Faculty of Medicine, Charles University, Ruská 87, Prague 10 100 00, Czech Republic
| | - Marek Laboš
- Cardiocenter, University Hospital Královské Vinohrady and 3rd Faculty of Medicine, Charles University, Ruská 87, Prague 10 100 00, Czech Republic
| | - Jakub Sulženko
- Cardiocenter, University Hospital Královské Vinohrady and 3rd Faculty of Medicine, Charles University, Ruská 87, Prague 10 100 00, Czech Republic
| | - Martina Havlíková
- Cardiocenter, University Hospital Královské Vinohrady and 3rd Faculty of Medicine, Charles University, Ruská 87, Prague 10 100 00, Czech Republic
| | | | - Viktor Kočka
- Cardiocenter, University Hospital Královské Vinohrady and 3rd Faculty of Medicine, Charles University, Ruská 87, Prague 10 100 00, Czech Republic
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20
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Mechanical Circulatory Support in Patients with Cardiogenic Shock. CURRENT TREATMENT OPTIONS IN CARDIOVASCULAR MEDICINE 2020; 22:4. [DOI: 10.1007/s11936-020-0804-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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21
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Hong JK, Gao L, Singh J, Goh T, Ruhoff AM, Neto C, Waterhouse A. Evaluating medical device and material thrombosis under flow: current and emerging technologies. Biomater Sci 2020; 8:5824-5845. [DOI: 10.1039/d0bm01284j] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review highlights the importance of flow in medical device thrombosis and explores current and emerging technologies to evaluate dynamic biomaterial Thrombosis in vitro.
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Affiliation(s)
- Jun Ki Hong
- School of Chemistry
- The University of Sydney
- Australia
- School of Medical Sciences
- Faculty of Medicine and Health
| | - Lingzi Gao
- Heart Research Institute
- Newtown
- Australia
- The University of Sydney Nano Institute
- The University of Sydney
| | - Jasneil Singh
- Heart Research Institute
- Newtown
- Australia
- The Charles Perkins Centre
- The University of Sydney
| | - Tiffany Goh
- Heart Research Institute
- Newtown
- Australia
- The Charles Perkins Centre
- The University of Sydney
| | - Alexander M. Ruhoff
- Heart Research Institute
- Newtown
- Australia
- The Charles Perkins Centre
- The University of Sydney
| | - Chiara Neto
- School of Chemistry
- The University of Sydney
- Australia
- The University of Sydney Nano Institute
- The University of Sydney
| | - Anna Waterhouse
- School of Medical Sciences
- Faculty of Medicine and Health
- The University of Sydney
- Australia
- Heart Research Institute
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22
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Abstract
PURPOSE OF REVIEW As the number of surgical and transcatheter valve replacements continue to increase in the aging population, so does the incidence of paravalvular leak (PVL). Given its impact on morbidity and mortality, this article will focus on the epidemiology, clinical presentation, diagnostic assessment, and available treatments for PVL. RECENT FINDINGS Despite being performed on inoperable and typically higher risk patients, short-term complication rates of transcatheter PVL closure appear relatively low (< 10%). When indirectly compared with surgical PVL closure, long-term mortality, reoperation rates and degree of symptom improvement are similar. Nonetheless, current transcatheter closure devices are off-label and repurposed from other indications. Further development of percutaneous closure devices is an essential next step in order to improve and optimize outcomes. In patients with surgical and especially transcatheter-replaced heart valves, clinicians need to maintain vigilance for the presence of PVL, particularly in those with new-onset heart failure or hemolysis. Multimodality imaging is essential to detect and quantify PVL. Echocardiography (both transthoracic and transesophageal) is the backbone of diagnosis and quantification, and cardiac computed tomography and cardiac magnetic resonance imaging play an important role in defect characterization and in periprocedural planning. For those patients who are unable to undergo surgery, transcatheter PVL closure is an appropriate next step in management as it has similar outcomes to surgical intervention when performed in a center of expertise.
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23
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Alkhouli M, Farooq A, Go RS, Balla S, Berzingi C. Cardiac prostheses-related hemolytic anemia. Clin Cardiol 2019; 42:692-700. [PMID: 31039274 PMCID: PMC6605004 DOI: 10.1002/clc.23191] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 04/16/2019] [Accepted: 04/28/2019] [Indexed: 11/28/2022] Open
Abstract
Hemolysis is an unintended sequel of temporary or permanent intracardiac devices. However, limited data exist on the characteristics and treatment of hemolysis in patients with cardiac prostheses. This entity, albeit uncommon, often poses significant diagnostic and management challenges to the clinical cardiologist. In this article, we aim to provide a contemporary overview of the incidence, mechanisms, diagnosis, and management of cardiac prosthesis‐related hemolysis.
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Affiliation(s)
- Mohamad Alkhouli
- Division of Cardiology, Department of Medicine, West Virginia University, Morgantown, West Virginia
| | - Ali Farooq
- Division of Cardiology, Department of Medicine, West Virginia University, Charleston, West Virginia
| | - Ronald S Go
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, Minnesota
| | - Sudarshan Balla
- Division of Cardiology, Department of Medicine, West Virginia University, Morgantown, West Virginia
| | - Chalak Berzingi
- Division of Cardiology, Department of Medicine, West Virginia University, Morgantown, West Virginia
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