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Yun S, Casado J, Pérez-Silvestre J, Salamanca P, Llàcer P, Quirós R, Ruiz-Hueso R, Méndez M, Manzano L, Formiga F. Clinical suspicion, diagnosis and management of cardiac amyloidosis: update document and executive summary. Rev Clin Esp 2024; 224:288-299. [PMID: 38614320 DOI: 10.1016/j.rceng.2024.04.009] [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: 03/03/2024] [Accepted: 03/22/2024] [Indexed: 04/15/2024]
Abstract
In recent years, the interest in cardiac amyloidosis has grown exponentially. However, there is a need to improve our understanding of amyloidosis in order to optimise early detection systems. Therefore, it is crucial to incorporate solutions to improve the suspicion, diagnosis and follow-up of cardiac amyloidosis. In this sense, we designed a tool following the different phases to reach the diagnosis of cardiac amyloidosis, as well as an optimal follow-up: a) clinical suspicion, where the importance of the "red flags" to suspect it and activate the diagnostic process is highlighted; 2) diagnosis, where the diagnostic algorithm is mainly outlined; and 3) follow-up of confirmed patients. This is a practical resource that will be of great use to all professionals caring for patients with suspected or confirmed cardiac amyloidosis, to improve its early detection, as well as to optimise its accurate diagnosis and optimal follow-up.
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Affiliation(s)
- S Yun
- Bio-Heart Cardiovascular Diseases Research Group, Instituto de Investigación Biomédica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain; Programa de Atención a la Insuficiencia Cardíaca Comunitaria, Servicios de Cardiología y Medicina Interna, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain; Servicio de Medicina Interna, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III (ISCIII), Madrid, Spain.
| | - J Casado
- Servicio de Medicina Interna, Hospital Universitario de Getafe, Madrid, Spain; Universidad Europea de Madrid, Madrid, Spain
| | - J Pérez-Silvestre
- Servicio de Medicina Interna, UMIPIC, Consorcio Hospital General Universitario de Valencia, Valencia, Spain
| | - P Salamanca
- Servicio de Medicina Interna, Hospital Universitario Virgen Macarena, Sevilla, Spain; Departamento de Medicina, Universidad de Sevilla, Sevilla, Spain
| | - P Llàcer
- Servicio de Medicina Interna, Hospital Universitario Ramón y Cajal, IRYCIS, Madrid, Spain; Departamento de Medicina y Especialidades Médicas, Facultad de Medicina y Ciencias de la Salud, Universidad de Alcalá, Madrid, Spain
| | - R Quirós
- Servicio de Medicina Interna, Hospital Costa del Sol, Marbella, Spain; RICAPPS, Red de Investigación en Cronicidad, Atención Primaria y Prevención y Promoción de la Salud, Spain
| | - R Ruiz-Hueso
- Servicio de Medicina Interna, Hospital Universitario Virgen Macarena, Sevilla, Spain
| | - M Méndez
- Servicio de Medicina Interna, Hospital Clínico San Carlos, Facultad de Medicina, Universidad Complutense, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - L Manzano
- Servicio de Medicina Interna, Hospital Universitario Ramón y Cajal, IRYCIS, Madrid, Spain; Departamento de Medicina y Especialidades Médicas, Facultad de Medicina y Ciencias de la Salud, Universidad de Alcalá, Madrid, Spain
| | - F Formiga
- Servicio de Medicina Interna, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain; Instituto de Investigación Biomédica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
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2
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Yamada E, Umemoto T, Taguchi T, Onishi I, Yamamoto A, Tsukamoto K, Ibara T, Sasaki T, Kaburagi H, Maejima Y, Sasano T, Ohashi K, Yoshii T, Nimura A, Fujita K. Prevalence of amyloid deposition and cardiac amyloidosis in shoulder disease compared to carpal tunnel syndrome. JSES Int 2024; 8:349-354. [PMID: 38464439 PMCID: PMC10920152 DOI: 10.1016/j.jseint.2023.11.009] [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] [Indexed: 03/12/2024] Open
Abstract
Background Cardiac amyloidosis is a fatal disease of severe heart failure caused by the accumulation of amyloid in the myocardium. This disease is often advanced by the time cardiac symptoms appear; therefore, early detection and treatment are critical for a good prognosis. Recently, it has been suggested that cardiac amyloidosis is implicated in several orthopedic diseases, including carpal tunnel syndrome (CTS), which is often reported to precede cardiac dysfunction. Shoulder disease has also been suggested to be associated with cardiac amyloidosis; however, there have been no reports investigating the rate of amyloid deposition in shoulder specimens and the simultaneous prevalence of cardiac amyloidosis. Herein, we investigated the prevalence of intraoperative specimen amyloid deposition and cardiac amyloidosis in shoulder disease and CTS to determine the usefulness of shoulder specimen screening as a predictor of cardiac amyloidosis development. Methods A total of 41 patients undergoing arthroscopic shoulder surgery and 33 patients undergoing CTS surgery were enrolled in this study. The shoulder group included rotator cuff tears, contracture of the shoulder, synovitis, and calcific tendonitis. In the shoulder group, a small sample of synovium and the long head of the biceps brachii tendon were harvested, while the transverse carpal ligament was harvested from the CTS group. The intraoperative specimens were pathologically examined for amyloid deposition, and patients with amyloid deposition were examined for the presence of cardiac amyloidosis by cardiac evaluation. Results In the shoulder group, three cases (7.3%) of transthyretin amyloid deposition were found, all of which involved rotator cuff tears. None of these three cases with amyloid deposition were associated with cardiac amyloidosis. When examining the specimens, the amyloid deposition rate in the long head of the biceps brachii tendon was higher than that in the synovium. In the CTS group, 12 cases (36.4%) of transthyretin amyloid deposition were observed. Of these cases, seven underwent cardiac evaluation and two were identified with cardiac amyloidosis. Conclusion While the prevalence of amyloid deposition and cardiac amyloidosis in the CTS group was consistent with previous reports, the shoulder group showed a lower deposition rate and no concomitant cardiac amyloidosis. Therefore, it remains debatable whether investigating amyloid deposition in samples obtained from shoulder surgery is beneficial for the early detection of cardiac amyloidosis.
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Affiliation(s)
- Eriku Yamada
- Department of Orthopedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Tomoyuki Umemoto
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Towako Taguchi
- Department of Comprehensive Pathology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Iichiroh Onishi
- Department of Comprehensive Pathology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Akiko Yamamoto
- Department of Orthopedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kazuya Tsukamoto
- Department of Orthopedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Takuya Ibara
- Department of Functional Joint Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Toru Sasaki
- Department of Orthopedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hidetoshi Kaburagi
- Department of Orthopedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yasuhiro Maejima
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Tetsuo Sasano
- Department of Cardiovascular Medicine, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kenichi Ohashi
- Department of Human Pathology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Toshitaka Yoshii
- Department of Orthopedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Akimoto Nimura
- Department of Functional Joint Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Koji Fujita
- Department of Functional Joint Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
- Division of Medical Design Innovations, Open Innovation Center, Institute of Research Innovation, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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3
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Brown CR, Bergin JD, Deal DN. Amyloidosis and Considerations for the Hand Surgeon. J Hand Surg Am 2024; 49:260-266. [PMID: 38043036 DOI: 10.1016/j.jhsa.2023.10.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 09/27/2023] [Accepted: 10/02/2023] [Indexed: 12/04/2023]
Abstract
Amyloidosis can lead to cardiac, renal, and other multiorgan failure. New treatments have become available that can prolong survival but rely on early diagnosis. Manifestations of amyloidosis in hand surgery include carpal tunnel syndrome, trigger finger, peripheral neuropathy, and spontaneous distal biceps rupture. Often, these can predate systemic amyloidosis, offering hand surgeons an opportunity to diagnose patients with amyloidosis before systemic disease, refer them for treatment, and potentially alter disease course and prolong survival. In this review, we describe the pathophysiology and two most common subtypes of amyloidosis seen by hand surgeons. We provide guidance on biopsy practices and referral for patients with amyloidosis. Lastly, we provide a brief overview of the treatments for amyloidosis and their effect on disease course.
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Affiliation(s)
- Chelsea R Brown
- Department of Orthopedic Surgery, University of Virginia, Charlottesville, VA.
| | - James D Bergin
- Department of Cardiology, University of Virginia, Charlottesville, VA
| | - D Nicole Deal
- Department of Orthopedic Surgery, University of Virginia, Charlottesville, VA
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Yang H, Li R, Ma F, Liu Y, He X, Yang Q, Wang DW, Zeng H, Wang H. Echocardiographic phenotype for refined risk stratification and treatment selection in light chain amyloidosis with heart failure. J Cancer Res Clin Oncol 2023:10.1007/s00432-023-04783-2. [PMID: 37084113 DOI: 10.1007/s00432-023-04783-2] [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: 02/09/2023] [Accepted: 04/15/2023] [Indexed: 04/22/2023]
Abstract
AIMS Light chain amyloidosis (AL) patients with heart failure (HF) are usually with revised Mayo (rMayo) stage III/IV disease and have a poor prognosis. We sought to investigate whether and what echocardiographic phenotype provides value for further risk stratification and guiding optimal risk-adapted treatment in this subgroup of AL patients. METHODS AND RESULTS 95 AL patients who presented with HF and were on rMayo stage III/IV were retrospectively included. Of them, 51 patients (53.7%) were with stage III, 44 (46.3%) were with stage IV, and 44 (46.3%) underwent chemotherapy. Laboratory and echocardiographic measurements were acquired before the initiation of chemotherapy. The relevance of different variables with survival was assessed in the entire cohort, chemotherapy, and non-chemotherapy group. By Multivariate Cox regression analysis, right ventricular wall thickness (RVT) [HR 1.145, 95% confidence interval (CI) 1.026-1.279, P = 0.016], relative wall thickness (RWT) (HR 6.709, 95% CI 1.101-40.877, P = 0.039), and left ventricular ejection fraction (LVEF) < 50% (HR 1.939, 95% CI 1.048-3.590, P = 0.035) were found to be independently associated with survival in the entire cohort, RWT (HR 15.488, 95% CI 2.045-117.292, P = 0.008) in the non-chemotherapy group, and RVT (HR 1.331, 95% CI 1.054-1.681, P = 0.016) in the chemotherapy group, respectively. Kaplan-Meier survival analysis revealed that survival was significantly reduced in the presence of RVT ≥ 6.5 mm or LVEF < 50% in the entire cohort, and the significance of RVT ≥ 6.5 mm was irrespective of rMayo stages. In the chemotherapy group, survival was decreased if RVT ≥ 6.5 mm alone or together with RWT ≥ 0.67 were present, particularly in patients on rMayo stage IV. CONCLUSIONS Echocardiographic phenotype provides incremental value beyond rMayo staging for predicting survival and could further guide treatment in advanced AL with HF. Those with high-risk echocardiographic phenotypes as higher RVT and RWT and lower LVEF had a worse prognosis.
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Affiliation(s)
- Hong Yang
- Division of Cardiology and Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, #1095 Jiefang Ave., Wuhan, 430030, People's Republic of China
| | - Rui Li
- Division of Cardiology and Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, #1095 Jiefang Ave., Wuhan, 430030, People's Republic of China
| | - Fei Ma
- Division of Cardiology and Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, #1095 Jiefang Ave., Wuhan, 430030, People's Republic of China
| | - Yujian Liu
- Division of Cardiology and Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, #1095 Jiefang Ave., Wuhan, 430030, People's Republic of China
| | - Xingwei He
- Division of Cardiology and Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, #1095 Jiefang Ave., Wuhan, 430030, People's Republic of China
| | - Qiao Yang
- Division of Cardiology and Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, #1095 Jiefang Ave., Wuhan, 430030, People's Republic of China
| | - Dao Wen Wang
- Division of Cardiology and Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, #1095 Jiefang Ave., Wuhan, 430030, People's Republic of China
| | - Hesong Zeng
- Division of Cardiology and Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, #1095 Jiefang Ave., Wuhan, 430030, People's Republic of China.
| | - Hong Wang
- Division of Cardiology and Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, #1095 Jiefang Ave., Wuhan, 430030, People's Republic of China.
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Epidemiology of cardiac amyloidosis in Germany: a retrospective analysis from 2009 to 2018. Clin Res Cardiol 2023; 112:401-408. [PMID: 36241897 PMCID: PMC9998316 DOI: 10.1007/s00392-022-02114-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 10/04/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Improved imaging modalities contributed to increasing awareness of cardiac amyloidosis. Contemporary data on frequency trends in Germany are lacking. METHODS In a retrospective study using health claims data of a German statutory health insurance, patients with diagnostic codes of amyloidosis and concomitant heart failure between 2009 and 2018 were identified. RESULTS Prevalence increased from 15.5 to 47.6 per 100,000 person-years, and incidence increased from 4.8 to 11.6 per 100,000 person-years, with a continuous steepening in the slope of incidence trend. In patients with amyloidosis and heart failure age and proportion of men significantly increased, whereas the frequency of myeloma and nephrotic syndrome significantly decreased over time. Median (IQR) survival time after first diagnosis was 2.5 years (0.5-6 years), with a 9% (95% CI 2-15%, p = 0.008) reduced risk of death in the second compared to the first 5 years of observation. In the 2 years prior and 1 year after diagnosis, mean total health care costs were 6568 €, 11,872 € and 21,955 € per person and year. CONCLUSION The rise in cardiac amyloidosis has continuously accelerated in the last decade. Considering the adverse outcome and high health care burden, further effort should be put on early detection of the disease to implement available treatment.
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Li X, Pan XH, Fang Q, Liang Y. Pomolidomide for relapsed/refractory light chain amyloidosis after resistance to both bortezomib and daratumumab: A case report. World J Clin Cases 2022; 10:12703-12710. [PMID: 36579116 PMCID: PMC9791522 DOI: 10.12998/wjcc.v10.i34.12703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 10/13/2022] [Accepted: 11/04/2022] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Immunoglobulin light chain (AL) amyloidosis is a rare disease characterized by deposition of ALs essentially in any organ or tissue, with cardiac involvement being very frequent (61%). Early diagnosis is of high importance because early initiation of treatment in AL amyloidosis may improve outcomes. Despite the administration of immunotherapeutic agents, in particular bortezomib and daratumumab, which have improved the outcomes of AL amyloidosis, anti-plasma cell therapy remains suboptimal for some patients.
CASE SUMMARY We report the case of a 55-year-old man presenting with heart failure who was diagnosed with cardiac AL amyloidosis by an endomyocardial biopsy. He experienced a short-term hematological remission with no organ response after being administered a bortezomib-daratumumab containing regimen. The treatment was switched to pomolidomide due to pulmonary involvement and progressive pleural effusion, in which flow cytometry analysis showed abnormal plasma cells. After two cycles of this regimen, the pleural effusion was controlled effectively with no recurrence.
CONCLUSION This case emphasizes the crucial role of endomyocardial biopsy in early diagnosis of cardiac amyloidosis and suggests that pomolidomide may be an effective treatment for patients with AL amyloidosis that is relapsed/refractory to both bortezomib and daratumumab.
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Affiliation(s)
- Xian Li
- Department of Hematology, The Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang Province, China
| | - Xiao-Hong Pan
- Department of Cardiology, The Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang Province, China
| | - Qiu Fang
- Department of Hematology, Huzhou Central Hospital, Affiliated Huzhou Hospital, Zhejiang University School of Medicine, Huzhou 313099, Zhejiang Province, China
| | - Yun Liang
- Department of Hematology, The Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang Province, China
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Zeppenfeld K, Tfelt-Hansen J, de Riva M, Winkel BG, Behr ER, Blom NA, Charron P, Corrado D, Dagres N, de Chillou C, Eckardt L, Friede T, Haugaa KH, Hocini M, Lambiase PD, Marijon E, Merino JL, Peichl P, Priori SG, Reichlin T, Schulz-Menger J, Sticherling C, Tzeis S, Verstrael A, Volterrani M. 2022 ESC Guidelines for the management of patients with ventricular arrhythmias and the prevention of sudden cardiac death. Eur Heart J 2022; 43:3997-4126. [PMID: 36017572 DOI: 10.1093/eurheartj/ehac262] [Citation(s) in RCA: 713] [Impact Index Per Article: 356.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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8
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Argiro' A, Zampieri M, Mazzoni C, Catalucci T, Biondo B, Tomberli A, Gabriele M, Di Mario C, Perfetto F, Cappelli F. Red flags for the diagnosis of cardiac amyloidosis: simple suggestions to raise suspicion and achieve earlier diagnosis. J Cardiovasc Med (Hagerstown) 2022; 23:493-504. [PMID: 35904994 DOI: 10.2459/jcm.0000000000001337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Cardiac amyloidosis is an infiltrative disease characterized by extracellular deposition of insoluble amyloid fibrils in the heart leading to organ dysfunction. Despite recent diagnostic advances, the diagnosis of cardiac amyloidosis is often delayed or even missed. Furthermore, a long diagnostic delay is associated with adverse outcomes, with the early diagnosed patients showing the longest survival. In this narrative review we aimed to summarize the 'red flags' that may facilitate the correct diagnosis. The red flags may be classified as clinical, biohumoral, electrocardiographic, echocardiographic, and cardiac magnetic resonance features and should promptly raise the suspicion of cardiac amyloidosis in order to start a correct diagnostic pathway and targeted treatment strategies that may improve patients' outcomes.
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Affiliation(s)
| | | | | | | | | | | | | | - Carlo Di Mario
- Tuscan Regional Amyloidosis Centre
- Division of Interventional Structural Cardiology, Cardiothoracovascular Department
| | - Federico Perfetto
- Tuscan Regional Amyloidosis Centre
- IV Internal Medicine Division, Careggi University Hospital, Florence, Italy
| | - Francesco Cappelli
- Tuscan Regional Amyloidosis Centre
- Division of Interventional Structural Cardiology, Cardiothoracovascular Department
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9
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Choi YJ, Koh Y, Lee HJ, Hwang IC, Park JB, Yoon YE, Kim HL, Kim HK, Kim YJ, Cho GY, Sohn DW, Paeng JC, Lee SP. Independent Prognostic Utility of 11C-Pittsburgh Compound B PET in Patients with Light-Chain Cardiac Amyloidosis. J Nucl Med 2022; 63:1064-1069. [PMID: 34916248 PMCID: PMC9258564 DOI: 10.2967/jnumed.121.263033] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 12/09/2021] [Indexed: 01/03/2023] Open
Abstract
11C-Pittsburgh compound B (PiB) PET/CT visualizes the amount of myocardial amyloid deposit and can be used to prognosticate patients with amyloid light-chain (AL) cardiac amyloidosis (CA). However, whether 11C-PiB PET/CT has any independent additional prognostic value beyond the commonly used biomarkers remains unknown. Methods: This prospective study was on a cohort of 58 consecutive patients with AL CA who underwent 11C-PiB PET/CT. The patients were stratified into 2 groups on the basis of a visual assessment of whether there was myocardial 11C-PiB uptake on PET/CT. The primary endpoint was 1-y overall mortality. The independent prognostic utility of 11C-PiB PET/CT was analyzed using net reclassification improvement and integrated discrimination improvement. Results: Among the 58 patients enrolled, 35 were positive for myocardial 11C-PiB uptake on PET/CT. Patients with myocardial 11C-PiB PET uptake had a worse 1-y overall survival rate than those without (81.8% vs. 45.5%, P = 0.003 by log-rank test). In the multivariate analysis, positivity for myocardial 11C-PiB uptake on PET/CT was an independent predictor of 1-y mortality (adjusted hazard ratio, 3.382; 95% CI, 1.011-11.316; P = 0.048). In analysis of 3 subgroups of patients-those with a troponin I level of at least 0.1 ng/mL, those with an N-terminal pro-B-type natriuretic peptide (NT-proBNP) level of at least 1,800 pg/mL, and those with a difference of at least 180 mg/L between free light chains (the 3 commonly used biomarkers and their thresholds for staging in AL amyloidosis)-Kaplan-Meier curves showed for all 3 subgroups that patients positive for myocardial 11C-PiB uptake on PET/CT had a worse prognosis than those who were negative. Additionally, when the results of 11C-PiB PET/CT were added to these 3 biomarkers, the performance of 1-y mortality prediction significantly improved by net reclassification improvement (troponin I, 0.861; NT-proBNP, 0.914; difference between free light chains, 0.987) and by integrated discrimination improvement (0.200, 0.156, and 0.108, respectively). Conclusion:11C-PiB PET/CT is a strong independent predictor of 1-y overall mortality and provides incremental prognostic benefits beyond the 3 commonly used biomarkers of AL amyloidosis staging. Considering the recent development of numerous amyloid-targeting molecular imaging agents, further investigations are warranted on whether PET/CT should be included in risk stratification for patients with AL CA.
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Affiliation(s)
- You-Jung Choi
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea
| | - Youngil Koh
- Division of Hemato Oncology, Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea
| | - Hyun-Jung Lee
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea
| | - In-Chang Hwang
- Department of Internal Medicine and Cardiovascular Center, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, South Korea
| | - Jun-Bean Park
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea;,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Yeonyee E. Yoon
- Department of Internal Medicine and Cardiovascular Center, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, South Korea;,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Hack-Lyoung Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea;,Division of Cardiology, Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea; and
| | - Hyung-Kwan Kim
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea;,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Yong-Jin Kim
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea;,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Goo-Yeong Cho
- Department of Internal Medicine and Cardiovascular Center, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, South Korea;,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Dae-Won Sohn
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea;,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Jin-Chul Paeng
- Department of Nuclear Medicine, Seoul National University Hospital and Seoul National University College of Medicine, Seoul, South Korea
| | - Seung-Pyo Lee
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea;,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
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Lee Chuy K, Gomez J, Malhotra S. Coexistent transthyretin amyloid cardiomyopathy and monoclonal gammopathy: Diagnostic challenges and prognostic implications. J Nucl Cardiol 2022; 29:519-527. [PMID: 32720059 DOI: 10.1007/s12350-020-02281-3] [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: 07/05/2020] [Accepted: 07/06/2020] [Indexed: 10/23/2022]
Abstract
Establishing an accurate diagnosis of amyloid subtype in patients with coexistent cardiac amyloidosis and monoclonal gammopathy is crucial due to treatment and prognostic implications. Here, we discuss a case of coexistent diagnoses of transthyretin amyloid cardiomyopathy and smoldering multiple myeloma, highlighting the challenges associated with the possibility of several disease combinations and the limitations of diagnostic testing. In addition, the importance of clinical clues such as disease course and progression, patient preference, and multidisciplinary collaboration should not be discounted in the diagnostic and management approach of these patients.
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Affiliation(s)
| | - Javier Gomez
- Division of Cardiology, Cook County Health, Chicago, IL, USA
- Division of Cardiology, Rush Medical College, Chicago, IL, USA
| | - Saurabh Malhotra
- Division of Cardiology, Cook County Health, Chicago, IL, USA.
- Division of Cardiology, Rush Medical College, Chicago, IL, USA.
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11
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Trachtenberg B. Future Directions in Cardiac Amyloidosis. Methodist Debakey Cardiovasc J 2022; 18:73-77. [PMID: 35414857 PMCID: PMC8932374 DOI: 10.14797/mdcvj.1071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 02/02/2022] [Indexed: 11/25/2022] Open
Abstract
Just a few years ago, cardiac amyloidosis (CA) was rarely diagnosed. With poor treatment options and delayed and infrequent diagnoses, most patients who were eventually recognized to have CA were referred for hospice care. Now, the availability of sponsored genetic testing, increased use of nuclear scintigraphy, and widespread recognition have contributed to an increasing number of patients being diagnosed with transthyretin amyloid cardiomyopathy (ATTR-CM). Concomitantly, with the increased recognition of concurrent conditions (eg, carpal tunnel syndrome, lumbar stenosis, and low-flow, low-gradient aortic stenosis), specialists such as orthopedic surgeons and structural cardiologists are increasingly involved in diagnosing ATTR-CM. Although the majority of patients are still being diagnosed either too late or having their diagnosis missed altogether, we have entered an exciting new era in the treatment of cardiac amyloidosis with improved diagnostic tools, disease recognition, and different therapeutic options for both ATTR and light-chain amyloidosis (AL). As a result, survival is improving, and we are no longer faced with a dualistic choice between hospice or organ transplant. The future goal is to develop anti-fibril therapies that will be safe and effective at removing deposited amyloid fibrils and restoring organs to their pre-amyloid state. For the millions of carriers of variant ATTR, enhanced testing followed by genetic editing may allow a cure even before patients develop clinical signs of the disease.
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Affiliation(s)
- Barry Trachtenberg
- Houston Methodist Heart & Vascular Center, JC Walter Houston Methodist Transplant Center, Houston Methodist Hospital, Houston, Texas, US
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12
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Tanaka H, Kitao A, Minami H, Hirata KI. Marked recovery of cardiac function by chemotherapy and autologous stem cell transplantation of a patient with heart failure with preserved ejection fraction due to primary amyloid light-chain amyloidosis: a case report. Eur Heart J Case Rep 2022; 6:ytac016. [PMID: 35291337 PMCID: PMC8916019 DOI: 10.1093/ehjcr/ytac016] [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: 04/15/2021] [Revised: 07/27/2021] [Accepted: 12/30/2021] [Indexed: 11/18/2022]
Abstract
Background Cardiac involvement of amyloid light-chain (AL) amyloidosis is strongly associated with poor outcome, but the early detection of cardiac involvement of AL amyloidosis can be challenging. Case summary We present a case of 49-year-old-female with heart failure with preserved ejection fraction. Echocardiography revealed normal left ventricular (LV) ejection fraction of 63% and an enlarged left atrium with a left atrial volume index (LAVI) of 54 mL/m2. Mild LV hypertrophy with an interventricular septum of 12.3 mm and posterior wall thickness of 11.0 mm was observed, and Doppler-derived LV diastolic filling showed a restrictive filling pattern. The conventional echocardiographic findings did not unequivocally indicate typical cardiac amyloidosis, but global longitudinal strain (GLS) was as low as 14.2%, and an apical sparing pattern was observed with relative apical longitudinal strain of 1.11. Finally, the patient was diagnosed as primary AL amyloidosis including histological examination of the endomyocardial specimen. After treatment with a regime of bortezomib and dexamethasone followed by high-dose melphalan followed by autologous peripheral blood stem cell transplantation (auto-PBSCT), Doppler-derived LV diastolic filling improved to normal filling pattern, and left atrial size had also decreased with an LAVI of 31 mL/m2. Moreover, GLS improved to 19.8%, and the apical sparing pattern had disappeared with relative apical longitudinal strain of 0.62. The patient has been asymptomatic during 18-month follow-up after auto-PBSCT, and recovered LV function has been maintained. Discussion An earlier diagnosis of cardiac amyloidosis by using apical sparing may therefore allow for earlier treatment intervention for AL amyloidosis.
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Affiliation(s)
- Hidekazu Tanaka
- Division of Cardiovascular Medicine, Kobe University Graduate School of Medicine, 7-5-2, Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
| | - Akihito Kitao
- Division of Medical Oncology/Hematology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-2, Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
| | - Hironobu Minami
- Division of Medical Oncology/Hematology, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-2, Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
| | - Ken-Ichi Hirata
- Division of Cardiovascular Medicine, Kobe University Graduate School of Medicine, 7-5-2, Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
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13
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Lee C, Lam A, Kangappaden T, Olver P, Kane S, Tran D, Ammann E. Systematic literature review of evidence in amyloid light-chain amyloidosis. J Comp Eff Res 2022; 11:451-472. [DOI: 10.2217/cer-2021-0261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Introduction: Treatment of amyloid light-chain (AL) amyloidosis, a rare disease with a <5-year lifespan, remains challenging. This systematic literature review (SLR) aimed to evaluate the current evidence base in AL amyloidosis. Methods: Literature searches on clinical, health-related quality of life, economic and resource use evidence were conducted using the Embase, MEDLINE and Cochrane databases as well as gray literature. Results: This SLR yielded 84 unique studies from: five randomized controlled trials; 54 observational studies; 12 health-related quality of life studies, none with utility values; no economic evaluation studies; and 16 resource use studies, none with indirect costs. Conclusion: This SLR highlights a paucity of published literature relating to randomized controlled trials, utility values, economic evaluations and indirect costs in AL amyloidosis.
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Affiliation(s)
- Charlene Lee
- Janssen Global Services, LLC, Raritan, NJ 08869, USA
| | - Annette Lam
- Janssen Global Services, LLC, Raritan, NJ 08869, USA
| | | | - Pyper Olver
- EVERSANA Life Science Services, LLC, Burlington, ON, L7N 3H8, Canada
| | - Sarah Kane
- EVERSANA Life Science Services, LLC, Burlington, ON, L7N 3H8, Canada
| | - Diana Tran
- EVERSANA Life Science Services, LLC, Burlington, ON, L7N 3H8, Canada
| | - Eric Ammann
- Janssen Global Services, LLC, Raritan, NJ 08869, USA
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Dale Z, Al-Rashdan L, Elman M, Chandrashekar P, Heitner SB, Nazer B, Masri A. Mode of death and outcomes of implantable cardioverter defibrillators in transthyretin amyloid cardiomyopathy. Int J Cardiol 2021; 349:99-102. [PMID: 34843821 DOI: 10.1016/j.ijcard.2021.11.057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 11/05/2021] [Accepted: 11/24/2021] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Transthyretin cardiac amyloidosis (ATTR-CM) may associate with sudden cardiac death. We report on the mode of death and outcomes with implantable cardioverter defibrillators (ICDs) in a cohort with ATTR-CM. METHODS A single center observational cohort study of patients with ATTR-CM diagnosed between 2005 and 2019. ICD implant was at discretion of treating cardiologists. Medians are expressed with 25th,75th percentiles. RESULTS Eighty-four patients with ATTR-CM (age 73.5 ± 9.7 years, 94% male, median follow-up 21.1 months (11.4-38.1). Nineteen patients (23%) underwent ICD implantation - 18 for primary and 1 for secondary prevention. In the primary prevention ICD group, 1 patient had 2 inappropriate shocks, 1 patient had appropriate ATP on 3 occasions. One patient (mixed ischemic cardiomyopathy and ATTR-CM) with secondary prevention ICD had 15 appropriate shocks in 3 episodes of VT storm. In patients without ICD, ambulatory monitoring review (14,764 h) did not reveal sustained ventricular arrhythmia. Excluding the one patient with secondary prevention ICD, 5 (28%) in the primary prevention ICD group and 22 (34%) in the non-ICD group died, p = 0.14. Mode of death did not vary between both groups. CONCLUSIONS Patients with ATTR-CM and primary prevention ICD infrequently receive appropriate device therapy without differing in mode of death, which was mainly related to progressive heart failure, compared to those without ICD.
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Affiliation(s)
- Zack Dale
- The Amyloidosis Center, Division of Cardiology, Knight Cardiovascular Institute- Oregon Health & Science University, Portland, OR, USA
| | - Lana Al-Rashdan
- The Amyloidosis Center, Division of Cardiology, Knight Cardiovascular Institute- Oregon Health & Science University, Portland, OR, USA
| | - Miriam Elman
- School of Public Health, Oregon Health & Science University/Portland State University, Portland, OR, USA
| | - Pranav Chandrashekar
- The Amyloidosis Center, Division of Cardiology, Knight Cardiovascular Institute- Oregon Health & Science University, Portland, OR, USA
| | - Stephen B Heitner
- The Amyloidosis Center, Division of Cardiology, Knight Cardiovascular Institute- Oregon Health & Science University, Portland, OR, USA
| | - Babak Nazer
- The Amyloidosis Center, Division of Cardiology, Knight Cardiovascular Institute- Oregon Health & Science University, Portland, OR, USA
| | - Ahmad Masri
- The Amyloidosis Center, Division of Cardiology, Knight Cardiovascular Institute- Oregon Health & Science University, Portland, OR, USA.
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Porcari A, Bussani R, Merlo M, Varrà GG, Pagura L, Rozze D, Sinagra G. Incidence and Characterization of Concealed Cardiac Amyloidosis Among Unselected Elderly Patients Undergoing Post-mortem Examination. Front Cardiovasc Med 2021; 8:749523. [PMID: 34888361 PMCID: PMC8649842 DOI: 10.3389/fcvm.2021.749523] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 10/27/2021] [Indexed: 11/13/2022] Open
Abstract
Background: The prevalence of cardiac amyloidosis (CA) is unknown. Aims and Methods: We sought to (a) determine the prevalence of CA in unselected patients ≥75 years undergoing autopsy, (b) characterize cardiological profiles of CA and non-CA patients by providing clinical-histological correlations, and (c) compare their cardiological profiles. After dedicated staining, the localization (interstitial or vascular) and the distribution (non-diffuse or diffuse) of amyloid deposition were analyzed. Cardiological data at last evaluation were retrospectively assessed for the presence of CA red-flags. Results: CA (50% light chains, 50% transthyretin) was found in 43% (n = 24/56) of the autopsied hearts. Atria were involved in 96% of cases. Amyloid localized both at the perivascular and interstitial levels (95.5 and 85%, respectively) with a slightly predominant non-diffuse distribution (58% of cases). Compared to the other patients, CA patients had a more frequent history of heart failure (HF) (79 vs. 47%, p = 0.014), advanced NYHA functional class (III-IV 25 vs. 6%, p = 0.047), atrial fibrillation (68 vs. 36%, p = 0.019), discrepancy between QRS voltage and left ventricular (LV) thickness (70 vs. 12%, p < 0.001), thicker LV walls (15 vs. 11 mm, p < 0.001), enlarged left atrium (49 vs. 42 mm, p = 0.019) and restrictive filling pattern (56 vs. 19%, p = 0.020). The presence of right ventricular amyloidosis seemed to identify hearts with a higher amyloid burden. Among the CA patients, >30% had ≥3 echocardiographic red-flags of disease. Conclusion: CA can be found in 43% of autopsied hearts from patients ≥75 years old, especially in patients with HF, LV hypertrophy and atrial fibrillation.
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Affiliation(s)
- Aldostefano Porcari
- Cardiovascular Department, Center for Diagnosis and Treatment of Cardiomyopathies, Azienda Sanitaria Universitaria Giuliano-Isontina, University of Trieste, Trieste, Italy
| | - Rossana Bussani
- Cardiothoracic Department, Center for Diagnosis and Treatment of Cardiomyopathies, Institute of Pathological Anatomy and Histology, Azienda Sanitaria Universitaria Giuliano-Isontina, University of Trieste, Trieste, Italy
| | - Marco Merlo
- Cardiovascular Department, Center for Diagnosis and Treatment of Cardiomyopathies, Azienda Sanitaria Universitaria Giuliano-Isontina, University of Trieste, Trieste, Italy
| | - Guerino Giuseppe Varrà
- Cardiovascular Department, Center for Diagnosis and Treatment of Cardiomyopathies, Azienda Sanitaria Universitaria Giuliano-Isontina, University of Trieste, Trieste, Italy
| | - Linda Pagura
- Cardiovascular Department, Center for Diagnosis and Treatment of Cardiomyopathies, Azienda Sanitaria Universitaria Giuliano-Isontina, University of Trieste, Trieste, Italy
| | - Davide Rozze
- Cardiothoracic Department, Center for Diagnosis and Treatment of Cardiomyopathies, Institute of Pathological Anatomy and Histology, Azienda Sanitaria Universitaria Giuliano-Isontina, University of Trieste, Trieste, Italy
| | - Gianfranco Sinagra
- Cardiovascular Department, Center for Diagnosis and Treatment of Cardiomyopathies, Azienda Sanitaria Universitaria Giuliano-Isontina, University of Trieste, Trieste, Italy
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16
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Grogan M, Lopez-Jimenez F, Cohen-Shelly M, Dispenzieri A, Attia ZI, Abou Ezzedine OF, Lin G, Kapa S, Borgeson DD, Friedman PA, Murphree DH. Artificial Intelligence-Enhanced Electrocardiogram for the Early Detection of Cardiac Amyloidosis. Mayo Clin Proc 2021; 96:2768-2778. [PMID: 34218880 DOI: 10.1016/j.mayocp.2021.04.023] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 04/23/2021] [Indexed: 01/14/2023]
Abstract
OBJECTIVE To develop an artificial intelligence (AI)-based tool to detect cardiac amyloidosis (CA) from a standard 12-lead electrocardiogram (ECG). METHODS We collected 12-lead ECG data from 2541 patients with light chain or transthyretin CA seen at Mayo Clinic between 2000 and 2019. Cases were nearest neighbor matched for age and sex, with 2454 controls. A subset of 2997 (60%) cases and controls were used to train a deep neural network to predict the presence of CA with an internal validation set (n=999; 20%) and a randomly selected holdout testing set (n=999; 20%). We performed experiments using single-lead and 6-lead ECG subsets. RESULTS The area under the receiver operating characteristic curve (AUC) was 0.91 (CI, 0.90 to 0.93), with a positive predictive value for detecting either type of CA of 0.86. By use of a cutoff probability of 0.485 determined by the Youden index, 426 (84%) of the holdout patients with CA were detected by the model. Of the patients with CA and prediagnosis electrocardiographic studies, the AI model successfully predicted the presence of CA more than 6 months before the clinical diagnosis in 59%. The best single-lead model was V5 with an AUC of 0.86 and a precision of 0.78, with other single leads performing similarly. The 6-lead (bipolar leads) model had an AUC of 0.90 and a precision of 0.85. CONCLUSION An AI-driven ECG model effectively detects CA and may promote early diagnosis of this life-threatening disease.
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Affiliation(s)
- Martha Grogan
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, MN.
| | | | | | - Angela Dispenzieri
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN; Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - Zachi I Attia
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, MN
| | | | - Grace Lin
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, MN
| | - Suraj Kapa
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, MN
| | | | - Paul A Friedman
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, MN
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17
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Rahman T, Moghadam RC, Agarwal VV, Reiss CK. Cardiac amyloidosis: diagnostic challenges and recent advancement in the treatment of transthyretin amyloidosis (ATTR). Oxf Med Case Reports 2021; 2021:omab059. [PMID: 34408883 PMCID: PMC8365843 DOI: 10.1093/omcr/omab059] [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: 02/15/2021] [Revised: 04/21/2021] [Accepted: 06/05/2021] [Indexed: 11/14/2022] Open
Abstract
ATTR-CA is an under-reported cause of congestive heart failure (CHF) and cardiac arrhythmias. Heightened clinical suspicion along with a multimodal investigative approach is often required in diagnosing this potentially fatal condition. Tafamidis and inotersen have shown promising results in terms of progression-free survival by ameliorating CHF symptoms and peripheral neuropathies in clinical trials. In this case series of five patients, we present three wild-type cardiac amyloidosis (ATTRwt-CA), one familial cardiac amyloidosis (ATTRm-CA) and one primary cardiac (AL-CA). The diagnostic modality was different for each patient. ATTRwt-CA, ATTRm-CA and AL-CA patients received tafamidis, inotersen and chemotherapy with bone marrow stem-cell transplantation, respectively.
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Affiliation(s)
- Tanvir Rahman
- Department of Internal Medicine, St. Luke's Hospital, Chesterfield, MO, USA
| | | | - Vikram V Agarwal
- Department of Cardiology, St. Luke's Hospital, Chesterfield, MO, USA
| | - Craig K Reiss
- Department of Cardiology, St. Luke's Hospital, Chesterfield, MO, USA
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18
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Elsayed M, Usher S, Habib MH, Ahmed N, Ali J, Begemann M, Shabbir SA, Shune L, Al-Hilli J, Cossor F, Sperry BW, Raza S. Current Updates on the Management of AL Amyloidosis. J Hematol 2021; 10:147-161. [PMID: 34527111 PMCID: PMC8425803 DOI: 10.14740/jh866] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 06/14/2021] [Indexed: 12/17/2022] Open
Abstract
Systemic immunoglobulin light chain (AL) amyloidosis is a rare but fatal disease. It results from clonal proliferation of plasma cells with excessive production of insoluble misfolded proteins that aggregate in the extracellular matrix, causing damage to the normal architecture and function of various organs. For decades, treatment for AL amyloidosis was based mainly on therapeutic agents previously studied for its more common counterpart, multiple myeloma. As the prevalence and incidence of AL amyloidosis have increased, ongoing research has been conducted with treatments typically used in myeloma with varying success. In this review, we focus on current treatment strategies and updates to clinical guidelines and therapeutics for AL amyloidosis.
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Affiliation(s)
- Marwa Elsayed
- St Luke’s Hospital of Kansas City, University of Missouri Kansas City, Wornall Rd, Kansas City, MO 64111, USA
| | - Sara Usher
- St Luke’s Cancer Institute, University of Missouri Kansas City, 4321 Washington St, Ste 4000, Kansas City, MO 64111, USA
| | - Muhammad Hamza Habib
- Rutgers Cancer Institute of New Jersey, 195 Little Albany Street, New Brunswick, NJ 08901, USA
| | - Nausheen Ahmed
- University of Kansas Medical Center, 3901 Rainbow Blvd, Kansas City, KS 66160, USA
| | - Jawad Ali
- West Midland Deanery, 213 Hagley Road, Birmingham, B16 9RG, UK
| | - Madeline Begemann
- St Luke’s Cancer Institute, University of Missouri Kansas City, 4321 Washington St, Ste 4000, Kansas City, MO 64111, USA
| | | | - Leila Shune
- University of Kansas Medical Center, 3901 Rainbow Blvd, Kansas City, KS 66160, USA
| | - Jaffar Al-Hilli
- University of Missouri Columbia, 1 Hospital Dr, Columbia, MO 65212, USA
| | - Furha Cossor
- St Luke’s Cancer Institute, University of Missouri Kansas City, 4321 Washington St, Ste 4000, Kansas City, MO 64111, USA
| | - Brett W. Sperry
- Mid America Heart Institute, St Luke’s Hospital of Kansas City, Wornall Rd, Kansas City, MO 64111, USA
| | - Shahzad Raza
- St Luke’s Cancer Institute, University of Missouri Kansas City, 4321 Washington St, Ste 4000, Kansas City, MO 64111, USA
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19
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Cardiac Amyloidosis: Diagnostic Tools for a Challenging Disease. CARDIOGENETICS 2021. [DOI: 10.3390/cardiogenetics11030012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Amyloidosis is a group of diseases in which amyloid fibrils build up in tissues, leading to organ dysfunction. Cardiac involvement is observed in immunoglobulin light chain amyloidosis (AL) and transthyretin amyloidosis (ATTR) and, when it occurs, the prognosis worsens. Cardiac tissue infiltration can lead to restrictive cardiomyopathy with clinical signs of diastolic heart failure, without reduction of ejection fraction (HFpEF). The aim of multiple and less invasive diagnostic tests is to discern peculiar characteristics and reach the diagnosis without performing an invasive endomyocardial biopsy. These diagnostic tools allow early diagnosis, and they are crucial to best benefit from target therapy. In this review article, we describe the mechanism behind amyloid fibril formation, infiltration of tissues, and consequent clinical signs, focusing on the diagnostic tools and the red flags to obtain a diagnosis.
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20
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Sood RF, Kamenko S, McCreary E, Sather BK, Schmitt M, Peterson SL, Lipira AB. Diagnosing Systemic Amyloidosis Presenting as Carpal Tunnel Syndrome: A Risk Nomogram to Guide Biopsy at Time of Carpal Tunnel Release. J Bone Joint Surg Am 2021; 103:1284-1294. [PMID: 34097669 DOI: 10.2106/jbjs.20.02093] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND As carpal tunnel syndrome often precedes other signs of systemic amyloidosis, tenosynovial biopsy at the time of carpal tunnel release may facilitate early diagnosis and treatment. However, evidence-based guidelines for amyloidosis screening during carpal tunnel release have not been established. We sought to develop a predictive model for amyloidosis after carpal tunnel release to inform screening efforts. METHODS We performed a retrospective cohort study of adults without known amyloidosis undergoing at least 1 carpal tunnel release from 2000 to 2019 with use of the national Veterans Health Administration database. After estimating the cumulative incidence of amyloidosis after carpal tunnel release, we identified risk factors, constructed a predictive nomogram based on a multivariable subdistribution-hazard competing-risks model, and performed cross-validation. RESULTS Among 89,981 patients undergoing at least 1 carpal tunnel release, 310 were subsequently diagnosed with amyloidosis at a median interval of 4.5 years, corresponding to a cumulative incidence of 0.55% (95% confidence interval [CI]: 0.47% to 0.63%) at 10 years. Amyloidosis diagnosis following carpal tunnel release was associated with an increased hazard of heart failure (hazard ratio [HR], 4.68; 95% CI: 4.26 to 5.55) and death (HR, 1.27; 95% CI: 1.07 to 1.51) after adjustment for potential confounders. Age, male sex, Black race, monoclonal gammopathy of undetermined significance or multiple myeloma, rheumatoid arthritis, atrial fibrillation, spinal stenosis, and bilateral carpal tunnel syndrome were independently associated with increased risk of amyloidosis diagnosis and were included in the risk nomogram. CONCLUSIONS Amyloidosis diagnosis after carpal tunnel release is rare but is associated with poor outcomes. We present an amyloidosis-risk nomogram to help guide tenosynovial biopsy at time of carpal tunnel release. LEVEL OF EVIDENCE Prognostic Level IV. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Ravi F Sood
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Srdjan Kamenko
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Oregon Health & Science University, Portland, Oregon
| | - Eleanor McCreary
- Oregon Health & Science University School of Medicine, Portland, Oregon
| | - Bergen K Sather
- Oregon Health & Science University School of Medicine, Portland, Oregon
| | - Michael Schmitt
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Oregon Health & Science University, Portland, Oregon
| | - Steven L Peterson
- Operative Care Division, Portland VA Medical Center, Portland, Oregon
| | - Angelo B Lipira
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Oregon Health & Science University, Portland, Oregon.,Operative Care Division, Portland VA Medical Center, Portland, Oregon
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21
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Orthopaedic Manifestations of Amyloidosis. J Am Acad Orthop Surg 2021; 29:e488-e496. [PMID: 33443391 DOI: 10.5435/jaaos-d-20-01146] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 12/20/2020] [Indexed: 02/01/2023] Open
Abstract
Amyloidosis is a disorder of misfolded proteins in human tissues, which can result in morbid cardiac and neurological disease. Historically, the utility of tissue biopsy during orthopaedic procedures to detect amyloidosis has been limited because no disease-modifying therapies were available; however, new drug therapies have recently emerged for the treatment of amyloidosis. Although these novel pharmaceuticals show promise for slowing disease progression, they are primarily effective in the early stages of amyloidosis, underscoring the importance of early diagnosis. Common orthopaedic manifestations of amyloidosis include carpal tunnel syndrome, trigger finger, spontaneous distal biceps tendon rupture, rotator cuff disease, and lumbar spinal stenosis. Carpal tunnel syndrome is frequently the earliest manifestation of amyloidosis, on average preceding a formal diagnosis of amyloidosis by over four years. By recognizing the constellation of musculoskeletal symptoms in the patient with amyloidosis, orthopaedic surgeons can play an active role in patient referral, early detection of systemic disease, and prompt initiation of disease-modifying treatment. There may be a role for selective biopsy for amyloid deposition in at-risk patients during routine orthopaedic procedures.
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22
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Abstract
Amyloidosis is a disorder characterized by misfolded precursor proteins that form depositions of fibrillar aggregates with an abnormal cross-beta-sheet conformation, known as amyloid, in the extracellular space of several tissues. Although there are more than 30 known amyloidogenic proteins, both hereditary and non-hereditary, cardiac amyloidosis (CA) typically arises from either misfolded transthyretin (ATTR amyloidosis) or immunoglobulin light-chain aggregation (AL amyloidosis). Its prevalence is more common than previously thought, especially among patients with heart failure and preserved ejection fraction (HFpEF) and aortic stenosis. If there is a clinical suspicion of CA, focused echocardiography, laboratory screening for the presence of a monoclonal protein (serum and urinary electrophoresis with immunofixation and serum free light-chain ratio), and cardiac scintigraphy with 99mtechnetium-labeled bone-tracers are sensitive and specific initial diagnostic tests. In some cases, more advanced/invasive techniques are necessary and, in the last several years, treatment options for both AL CA and ATTR CA have rapidly expanded. It is important to note that the aims of therapy are different. Systemic AL amyloidosis requires treatment targeted against the abnormal plasma cell clone, whereas therapy for ATTR CA must be targeted to the production and stabilization of the TTR molecule. It is likely that a multistep treatment approach will be optimal for both AL CA and ATTR CA. Additionally, treatment of CA includes the management of restrictive cardiomyopathy with preserved or reduced ejection fraction in addition to treating the amyloid deposition. Future studies are necessary to define optimal management strategies for AL CA and ATTR CA and confirm cardiac response to therapy.
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Affiliation(s)
- Petra Nijst
- Department of Cardiology, Ziekenhuis Oost-Limburg, Genk, Belgium
- Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Diepenbeek, Belgium
| | - WH Wilson Tang
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH, USA
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23
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Yadav JD, Othee H, Chan KA, Man DC, Belliveau PP, Towle J. Transthyretin Amyloid Cardiomyopathy-Current and Future Therapies. Ann Pharmacother 2021; 55:1502-1514. [PMID: 33685242 DOI: 10.1177/10600280211000351] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVE To describe the clinical presentation of transthyretin amyloid cardiomyopathy (ATTR-CM) and discuss current treatments and investigational products and their effect on patient outcomes. DATA SOURCES A literature search was performed in PubMed (September 2018 to December 2020) using the following keywords: transthyretin amyloidosis, cardiomyopathy, polyneuropathy and transthyretin amyloid cardiomyopathy, monoclonal light-chain, tafamidis, cardiac amyloidosis, ATTR cardiomyopathy, green tea and inhibition of cardiac amyloidosis, AG10, tolcapone, tolcapone and leptomeningeal ATTR, PRX004, NI006, patisiran, inotersen, vutrisiran, AKCEA-TTR-LRx, and NTLA-2001. STUDY SELECTION AND DATA EXTRACTION Clinical trials were evaluated for evidence supporting pharmacology, safety, efficacy, and measured outcomes. DATA SYNTHESIS Until 2019, there were no approved treatments for ATTR-CM. Treatment consisted of symptom management and organ transplant. Nonpharmacological and pharmacological treatments focused on the symptoms of heart failure (HF) associated with ATTR-CM. However, there are several emerging therapies recently approved or in development to address the underlying pathophysiology. Treatment classes for ATTR-CM include transthyretin stabilizers, human monoclonal antibodies, gene silencers, and CRISPR/Cas9 gene editing. RELEVANCE TO PATIENT CARE AND CLINICAL PRACTICE ATTR-CM is a complex disease in which amyloidosis causes cardiomyopathy. Underdiagnosis is attributed to the clinical presentation being heterogeneous, indistinguishable from HF caused by other etiologies, and the need for invasive testing modalities, including endomyocardial biopsy. Improved diagnostic approaches along with targeted therapies can slow disease progression and enhance patient quality of life. CONCLUSION Diagnostic modalities along with biomarker and genetic testing could detect disease earlier and target therapy more accurately. Novel therapies demonstrate potential treatment benefits and can help shape the standard of care for these patients.
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Sobue Y, Takemura G, Kawamura S, Yano T, Kanamori H, Morimoto SI, Matsuo H. Coexistence of amyloidosis and light chain deposition disease in the heart. Cardiovasc Pathol 2020; 51:107315. [PMID: 33264681 DOI: 10.1016/j.carpath.2020.107315] [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: 06/21/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 11/28/2022] Open
Abstract
There are few reports on the coexistence of cardiac amyloid light-chain (AL) amyloidosis and light chain deposition disease (LCDD), despite their similar pathophysiologies caused by plasma-cell dyscrasia. Herein, we report the coexistence of these diseases. A 59-year-old man was referred to our hospital because of exertional dyspnea and hypotension. Renal dysfunction of unknown etiology had been present for 4 years and hemodialysis had been introduced. Severe systolic and diastolic cardiac dysfunction was apparent, accompanied with dilatation and granular sparkling, but not with left ventricular hypertrophy. The plasma-free light chain κ was found to be extremely high, with a κ/λ ratio of 1,919. Light microscopic examination of the endomyocardial biopsy revealed spotty and homogenous deposits, which positively stained with Congo red, and exhibited a blazing apple-green color under polarized light. Based on these results, cardiac amyloidosis was diagnosed. In specimens prepared for electron microscopy, no amyloid fibrils could be found. Instead, we observed amorphous nonfibrillar deposits around several small vessels including capillaries and small arteries, which were consistent with light-chain deposits. LCDD was diagnosed based on the systemic increase in κ light chain and the ultrastructural findings of the endomyocardial biopsy specimens. Coexistence of cardiac amyloidosis and LCDD was thus confirmed in our patient. An electron microscopic assessment in addition to Congo red staining may be useful to diagnose latent LCDD in patients with suspected cardiac light-chain amyloidosis.
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Affiliation(s)
- Yoshihiro Sobue
- Department of Cardiovascular Medicine, Gifu Heart Center, Gifu, Japan.
| | - Genzou Takemura
- Department of Internal Medicine, Asahi University School of Dentistry, Mizuho, Japan
| | - Shunji Kawamura
- Department of Pathology, Itabashi Medical Laboratory, EIL Inc., Tokyo, Japan
| | - Toshiyuki Yano
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Hiromitsu Kanamori
- Department of Cardiology, Gifu University School of Medicine, Gifu, Japan
| | - Shin-Ichiro Morimoto
- Department of Cardiology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Hitoshi Matsuo
- Department of Cardiovascular Medicine, Gifu Heart Center, Gifu, Japan
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Recipe for Success in Transthyretin Cardiomyopathy: Monoclonal Protein Rule Out, SPECT Imaging, and Genetic Testing. JACC Cardiovasc Imaging 2020; 14:1232-1234. [PMID: 33221210 DOI: 10.1016/j.jcmg.2020.09.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 09/23/2020] [Indexed: 01/12/2023]
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26
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Alexander KM, Jha A, Liao R. Decoding the Nanoenvironment in Cardiac Amyloidosis Through Proteomics. JACC CardioOncol 2020; 2:644-646. [PMID: 34396275 PMCID: PMC8352303 DOI: 10.1016/j.jaccao.2020.10.002] [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: 11/25/2022] Open
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Spoladore R, Falasconi G, Marcatti M, Di Maio S, Fiore G, Slavich M, Margonato A, Turco A, Fragasso G. Advances in pharmacotherapy for cardiac amyloidosis. Expert Opin Pharmacother 2020; 22:469-481. [PMID: 33043721 DOI: 10.1080/14656566.2020.1836159] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
INTRODUCTION Amyloidosis is a group of progressive and devastating disorders resulting from extracellular deposition of misfolded proteins into tissues. When deposition of fibrils occurs in cardiac tissues, this systemic disease can lead to a very poor prognosis. Systemic amyloidosis can be acquired [light chain (AL) amyloidosis; AA amyloidosis], or hereditary [transthyretin (ATTR) amyloidosis]. Cardiac disease in amyloidosis is usually secondary to a systemic disease. The diagnosis of cardiac involvement is often delayed and yields an adverse prognosis. AREAS COVERED in this review, the authors report current literature on advances in pharmacotherapy for cardiac amyloidosis, mainly focused on AL and ATTR amyloidosis treatment. EXPERT OPINION Most pharmacological trials in amyloidosis patients, both AL and TTR, are directed to study the effects of drugs on polyneuropathy. However, since cardiac involvement carries a prominent negative survival impact in amyloidosis patients, future research should be more focused on amyloidosis cardiomyopathy as primary endpoint. Additionally, in AL amyloidosis therapies are mainly derived from experience on multiple myeloma treatment. In this specific setting, possible future research could particularly focus on immunotherapeutic agents able to optimize the standard chemotherapy results and, thus, allowing a larger population of patients to be treated by bone marrow stem cell transplantation.
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Affiliation(s)
- R Spoladore
- Hypertrophic Cardiomyopathy Unit, IRCCS San Raffaele University Hospital, Milan, Italy.,Clinical Cardiology Unit, IRCCS San Raffaele University Hospital, Milan, Italy
| | - G Falasconi
- Clinical Cardiology Unit, IRCCS San Raffaele University Hospital, Milan, Italy
| | - M Marcatti
- Haematology Unit, IRCCS San Raffaele University Hospital, Milan, Italy
| | - S Di Maio
- Clinical Cardiology Unit, IRCCS San Raffaele University Hospital, Milan, Italy
| | - G Fiore
- Clinical Cardiology Unit, IRCCS San Raffaele University Hospital, Milan, Italy
| | - M Slavich
- Clinical Cardiology Unit, IRCCS San Raffaele University Hospital, Milan, Italy
| | - A Margonato
- Clinical Cardiology Unit, IRCCS San Raffaele University Hospital, Milan, Italy.,Vita-Salute San Raffaele University, Milan, Italy
| | - A Turco
- Division of Cardiology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - G Fragasso
- Clinical Cardiology Unit, IRCCS San Raffaele University Hospital, Milan, Italy.,Heart Failure Unit, IRCCS San Raffaele University Hospital, Milan, Italy
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Alatassi EU, Mohamed A, Habib S, Alabdul Razzak I, Mahmoud A. Suspecting Cardiac Amyloidosis in Congestive Heart Failure. Cureus 2020; 12:e11046. [PMID: 33224643 PMCID: PMC7676447 DOI: 10.7759/cureus.11046] [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] [Accepted: 10/19/2020] [Indexed: 11/28/2022] Open
Abstract
Amyloidosis is a rare multisystem disease due to deposition of abnormal protein fragments, and cardiac amyloidosis is progressive and difficult to diagnose due to its subtle and non-specific symptoms unless the physician maintains a high degree of suspicion. This case report focuses on amyloid deposition in the heart of an 84-year-old woman who presented with symptoms of uncompensated heart failure.
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Affiliation(s)
| | - Alaa Mohamed
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
- Internal Medicine, Memorial Hermann-Texas Medical Center, Houston, USA
| | - Salim Habib
- Internal Medicine, University of Damascus, Damascus, SYR
| | | | - Anas Mahmoud
- Internal Medicine, Icahn School of Medicine at Mount Sinai, Queens General Hospital, New York, USA
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Chen Q, Moriguchi J, Levine R, Chan J, Dimbil S, Patel J, Kittleson M, Megna D, Emerson D, Ramzy D, Trento A, Chikwe J, Kobashigawa J, Esmailian F. Outcomes of Heart Transplantation in Cardiac Amyloidosis Patients: A Single Center Experience. Transplant Proc 2020; 53:329-334. [PMID: 32917391 DOI: 10.1016/j.transproceed.2020.08.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 07/10/2020] [Accepted: 08/08/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND Indications for heart transplantation are expanding to include amyloid light chain (AL) and transthyretin-related (TTR) amyloidosis. Previously, AL amyloid had been a contraindication to heart transplantation given inferior outcomes. These patients typically have biventricular failure requiring mechanical circulatory support (MCS). We report the outcomes of patients with end-stage cardiac amyloidosis who underwent cardiac transplantation, including some who were bridged to transplantation with a durable biventricular MCS METHODS: The records for patients with cardiac amyloidosis who underwent cardiac transplant between 2010 and 2018 were reviewed. Primary endpoint was post-transplant 1-year survival. Secondary endpoints included 1-year freedom from cardiac allograft vasculopathy (as defined by stenosis ≥ 30% by angiography), nonfatal major adverse cardiac events (myocardial infarction, new congestive heart failure, percutaneous coronary intervention, implantable cardioverter defibrillator/pacemaker implant, stroke), and any rejection. RESULTS A total of 46 patients received heart transplantation with a diagnosis of either AL or TTR amyloidosis. Of these, 7 patients were bridged to transplantation with a durable biventricular MCS device (6 AL, 1 TTR) and 39 patients were transplanted without MCS bridging. The MCS group consisted of 5 total artificial hearts and 2 biventricular assist devices. The 1-year survival was 91% for the entire cohort, 83% for those with AL amyloidosis, 94% for those with TTR amyloidosis, and 86% for those who received MCS bridging. CONCLUSIONS Cardiac transplantation can be safely performed in selected amyloidosis patients with reasonable short-term outcomes. Those bridged to transplantation with biventricular MCS appear to have short-term outcomes similar to those transplanted without MCS. Larger numbers and longer observation are required to confirm these findings.
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Affiliation(s)
- Qiudong Chen
- Cedars-Sinai Smidt Heart Institute, Los Angeles, Calif, United States; Division of Cardiac Surgery, Cedars-Sinai Medical Center, Los Angeles, Calif, United States
| | - Jaime Moriguchi
- Cedars-Sinai Smidt Heart Institute, Los Angeles, Calif, United States
| | - Ryan Levine
- Cedars-Sinai Smidt Heart Institute, Los Angeles, Calif, United States
| | - Joshua Chan
- Cedars-Sinai Smidt Heart Institute, Los Angeles, Calif, United States; Division of Cardiac Surgery, Cedars-Sinai Medical Center, Los Angeles, Calif, United States
| | - Sadia Dimbil
- Cedars-Sinai Smidt Heart Institute, Los Angeles, Calif, United States
| | - Jignesh Patel
- Cedars-Sinai Smidt Heart Institute, Los Angeles, Calif, United States
| | | | - Dominick Megna
- Cedars-Sinai Smidt Heart Institute, Los Angeles, Calif, United States; Division of Cardiac Surgery, Cedars-Sinai Medical Center, Los Angeles, Calif, United States
| | - Dominic Emerson
- Cedars-Sinai Smidt Heart Institute, Los Angeles, Calif, United States; Division of Cardiac Surgery, Cedars-Sinai Medical Center, Los Angeles, Calif, United States
| | - Danny Ramzy
- Cedars-Sinai Smidt Heart Institute, Los Angeles, Calif, United States; Division of Cardiac Surgery, Cedars-Sinai Medical Center, Los Angeles, Calif, United States
| | - Alfredo Trento
- Cedars-Sinai Smidt Heart Institute, Los Angeles, Calif, United States; Division of Cardiac Surgery, Cedars-Sinai Medical Center, Los Angeles, Calif, United States
| | - Joanna Chikwe
- Cedars-Sinai Smidt Heart Institute, Los Angeles, Calif, United States; Division of Cardiac Surgery, Cedars-Sinai Medical Center, Los Angeles, Calif, United States
| | - Jon Kobashigawa
- Cedars-Sinai Smidt Heart Institute, Los Angeles, Calif, United States
| | - Fardad Esmailian
- Cedars-Sinai Smidt Heart Institute, Los Angeles, Calif, United States; Division of Cardiac Surgery, Cedars-Sinai Medical Center, Los Angeles, Calif, United States.
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Higgins AY, Annapureddy AR, Wang Y, Minges KE, Lampert R, Rosenfeld LE, Jacoby DL, Curtis JP, Miller EJ, Freeman JV. Survival Following Implantable Cardioverter-Defibrillator Implantation in Patients With Amyloid Cardiomyopathy. J Am Heart Assoc 2020; 9:e016038. [PMID: 32867553 PMCID: PMC7726970 DOI: 10.1161/jaha.120.016038] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Background Outcomes data in patients with cardiac amyloidosis after implantable cardioverter-defibrillator (ICD) implantation are limited. We compared outcomes of patients with ICDs implanted for cardiac amyloidosis versus nonischemic cardiomyopathies (NICMs) and evaluated factors associated with mortality among patients with cardiac amyloidosis. Methods and Results Using National Cardiovascular Data Registry's ICD Registry data between April 1, 2010 and December 31, 2015, we created a 1:5 propensity-matched cohort of patients implanted with ICDs with cardiac amyloidosis and NICM. We compared mortality between those with cardiac amyloidosis and matched patients with NICM using Kaplan-Meier survival curves and Cox proportional hazards models. We also evaluated risk factors associated with 1-year mortality in patients with cardiac amyloidosis using multivariable Cox proportional hazards regression models. Among 472 patients with cardiac amyloidosis and 2360 patients with propensity-matched NICMs, 1-year mortality was significantly higher in patients with cardiac amyloidosis compared with patients with NICMs (26.9% versus 11.3%, P<0.001). After adjustment for covariates, cardiac amyloidosis was associated with a significantly higher risk of all-cause mortality (hazard ratio [HR], 1.80; 95% CI, 1.56-2.08). In a multivariable analysis of patients with cardiac amyloidosis, several factors were significantly associated with mortality: syncope (HR, 1.78; 95% CI, 1.22-2.59), ventricular tachycardia (HR, 1.65; 95% CI, 1.15-2.38), cerebrovascular disease (HR, 2.03; 95% CI, 1.28-3.23), diabetes mellitus (HR, 1.55; 95% CI, 1.05-2.27), creatinine = 1.6 to 2.5 g/dL (HR, 1.99; 95% CI, 1.32-3.02), and creatinine >2.5 (HR, 4.34; 95% CI, 2.72-6.93). Conclusions Mortality after ICD implantation is significantly higher in patients with cardiac amyloidosis than in patients with propensity-matched NICMs. Factors associated with death among patients with cardiac amyloidosis include prior syncope, ventricular tachycardia, cerebrovascular disease, diabetes mellitus, and impaired renal function.
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Affiliation(s)
- Angela Y Higgins
- Section of Cardiovascular Medicine Department of Internal Medicine Yale University School of Medicine New Haven CT
| | - Amarnath R Annapureddy
- Section of Cardiovascular Medicine Department of Internal Medicine Yale University School of Medicine New Haven CT.,Center for Outcomes Research and Evaluation Yale New Haven Health Services Corporation New Haven CT
| | - Yongfei Wang
- Center for Outcomes Research and Evaluation Yale New Haven Health Services Corporation New Haven CT
| | - Karl E Minges
- Center for Outcomes Research and Evaluation Yale New Haven Health Services Corporation New Haven CT
| | - Rachel Lampert
- Section of Cardiovascular Medicine Department of Internal Medicine Yale University School of Medicine New Haven CT
| | - Lynda E Rosenfeld
- Section of Cardiovascular Medicine Department of Internal Medicine Yale University School of Medicine New Haven CT
| | - Daniel L Jacoby
- Section of Cardiovascular Medicine Department of Internal Medicine Yale University School of Medicine New Haven CT
| | - Jeptha P Curtis
- Section of Cardiovascular Medicine Department of Internal Medicine Yale University School of Medicine New Haven CT.,Center for Outcomes Research and Evaluation Yale New Haven Health Services Corporation New Haven CT
| | - Edward J Miller
- Section of Cardiovascular Medicine Department of Internal Medicine Yale University School of Medicine New Haven CT
| | - James V Freeman
- Section of Cardiovascular Medicine Department of Internal Medicine Yale University School of Medicine New Haven CT.,Center for Outcomes Research and Evaluation Yale New Haven Health Services Corporation New Haven CT
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Review of Transthyretin Silencers, Stabilizers, and Fibril Removal Agents in the Treatment of Transthyretin Cardiac Amyloid. Curr Cardiol Rep 2020; 22:106. [PMID: 32770401 DOI: 10.1007/s11886-020-01374-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE OF REVIEW To provide a functional review for practicing clinicians on the current and emerging treatment considerations for transthyretin (TTR) cardiac amyloidosis (ATTR-CA). RECENT FINDINGS Current treatment considerations are characterized as those silencing TTR translation, stabilizing TTR tetramers, and disrupting amyloid fibril deposition. Historically considered a rare disease state, ATTR-CA is increasingly recognized as an important mediator of heart failure morbidity and mortality. The emergence of widely available therapies for ATTR-CA has developed hope for patients where little was previously present. Thus, it is important that all cardiology clinicians have a functional understanding of the disease state and treatment options. This review will discuss agents within each of the above classes with expanded discussion on tafamidis given its favorable efficacy, safety, and availability. ATTR-CA diagnostic considerations are reviewed with regard to the identification of potential tafamidis candidates, and practical economic considerations are also reviewed.
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Oda S, Kidoh M, Nagayama Y, Takashio S, Usuku H, Ueda M, Yamashita T, Ando Y, Tsujita K, Yamashita Y. Trends in Diagnostic Imaging of Cardiac Amyloidosis: Emerging Knowledge and Concepts. Radiographics 2020; 40:961-981. [DOI: 10.1148/rg.2020190069] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Seitaro Oda
- From the Departments of Diagnostic Radiology (S.O., M.K., Y.N., Y.Y.), Cardiovascular Medicine (S.T., H.U., K.T.), Molecular Laboratory Medicine (H.U.), and Neurology (M.U., T.Y., Y.A.), Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Masafumi Kidoh
- From the Departments of Diagnostic Radiology (S.O., M.K., Y.N., Y.Y.), Cardiovascular Medicine (S.T., H.U., K.T.), Molecular Laboratory Medicine (H.U.), and Neurology (M.U., T.Y., Y.A.), Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Yasunori Nagayama
- From the Departments of Diagnostic Radiology (S.O., M.K., Y.N., Y.Y.), Cardiovascular Medicine (S.T., H.U., K.T.), Molecular Laboratory Medicine (H.U.), and Neurology (M.U., T.Y., Y.A.), Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Seiji Takashio
- From the Departments of Diagnostic Radiology (S.O., M.K., Y.N., Y.Y.), Cardiovascular Medicine (S.T., H.U., K.T.), Molecular Laboratory Medicine (H.U.), and Neurology (M.U., T.Y., Y.A.), Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Hiroki Usuku
- From the Departments of Diagnostic Radiology (S.O., M.K., Y.N., Y.Y.), Cardiovascular Medicine (S.T., H.U., K.T.), Molecular Laboratory Medicine (H.U.), and Neurology (M.U., T.Y., Y.A.), Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Mitsuharu Ueda
- From the Departments of Diagnostic Radiology (S.O., M.K., Y.N., Y.Y.), Cardiovascular Medicine (S.T., H.U., K.T.), Molecular Laboratory Medicine (H.U.), and Neurology (M.U., T.Y., Y.A.), Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Taro Yamashita
- From the Departments of Diagnostic Radiology (S.O., M.K., Y.N., Y.Y.), Cardiovascular Medicine (S.T., H.U., K.T.), Molecular Laboratory Medicine (H.U.), and Neurology (M.U., T.Y., Y.A.), Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Yukio Ando
- From the Departments of Diagnostic Radiology (S.O., M.K., Y.N., Y.Y.), Cardiovascular Medicine (S.T., H.U., K.T.), Molecular Laboratory Medicine (H.U.), and Neurology (M.U., T.Y., Y.A.), Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Kenichi Tsujita
- From the Departments of Diagnostic Radiology (S.O., M.K., Y.N., Y.Y.), Cardiovascular Medicine (S.T., H.U., K.T.), Molecular Laboratory Medicine (H.U.), and Neurology (M.U., T.Y., Y.A.), Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Yasuyuki Yamashita
- From the Departments of Diagnostic Radiology (S.O., M.K., Y.N., Y.Y.), Cardiovascular Medicine (S.T., H.U., K.T.), Molecular Laboratory Medicine (H.U.), and Neurology (M.U., T.Y., Y.A.), Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto 860-8556, Japan
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Incremental Value of Global Longitudinal Strain for Predicting Survival in Patients With Advanced AL Amyloidosis. JACC: CARDIOONCOLOGY 2020; 2:223-231. [PMID: 33117993 PMCID: PMC7591133 DOI: 10.1016/j.jaccao.2020.05.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Advanced light-chain (AL) amyloidosis is associated with poor prognosis, with a 5-year survival rate of <25%. Prognostication is based on the revised Mayo (rMayo) staging according to serum cardiac biomarkers. OBJECTIVES This study sought to determine whether global longitudinal strain (GLS) can provide incremental prognostic value in patients with advanced disease. METHODS Baseline (pre-treatment) clinical, 2-dimensional echocardiogram with GLS and laboratory data were collected prospectively in 94 patients with newly diagnosed AL amyloidosis with rMayo stage III or IV disease. Overall survival (OS) was defined as time from baseline echocardiography to death. RESULTS Of 94 patients, 60% (n = 56) had rMayo stage III and 40% (n = 38) had stage IV disease. Ninety of the 94 patients underwent plasma cell-directed therapy. The median left ventricular ejection fraction (LVEF) was 60%, and the median GLS was 13.2%. Of 94 patients, 64 died during follow-up. The median OS was 11.2 months, with an estimated 5-year OS of 21%. In univariable analysis, brain natriuretic peptides, GLS, LVEF, E/e' ratio, and rMayo stage were significantly associated with OS. In Cox regression, GLS provided incremental value over brain natriuretic peptide, troponin, and LVEF for predicting OS. Patients with GLS < -14.2% had a corresponding median OS and 5-year OS rate of 33.2 months and 39%, respectively, versus 7.7 months and 6% for those with GLS ≥ -14.2%. This difference was maintained despite further stratification by rMayo stage. CONCLUSIONS Baseline GLS is an independent predictor of OS beyond the circulating biomarkers and can identify groups with different survival outcomes beyond the Mayo Staging.
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Muñoz-Moreno J, Añorga-Ocmin J, Espinola-García S, Aguilar-Carranza C, Alarco-León W. [Cardiac Amyloidosis: Experience in a National Reference Cardiovascular Institute]. ARCHIVOS PERUANOS DE CARDIOLOGIA Y CIRUGIA CARDIOVASCULAR 2020; 1:75-84. [PMID: 38572335 PMCID: PMC10986346 DOI: 10.47487/apcyccv.v1i2.40] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 06/15/2020] [Indexed: 04/05/2024]
Abstract
Objectives To determine the clinical, imaging and laboratory characteristics and one year after diagnosis survival of patients with cardiac amyloidosis in a national reference hospital. Materials and methods Case series study. We evaluated the clinical characteristics, complementary examinations and survival of patients with cardiac amyloidosis diagnosed, treated and followed up in the Clinical Cardiology service of the National Cardiovascular Institute - INCOR EsSalud in Lima, Peru. Results We found eight patients with diagnosis of cardiac amyloidosis. The median age was 64.5 years and 75% were male. The etiology of cases was unspecified cardiac amyloidosis (25%), transthyretin cardiac amyloidosis (37.5%), and light chain cardiac amyloidosis (37.5%). Symptomatic heart failure (NYHA II-III) was the most common initial presentation symptom (87.5%). The most frequent extracardiac manifestations were: sensory-motor neuropathy (62.5%), musculoskeletal (37.5%), nephropathy (25%), bilateral carpal tunnel syndrome (25%), monoclonal gammopathies (25%) and refractory pleural effusion (25 %). Survival at one year was 75% and the cause of the 2 deaths was sudden death. Conclusions In this study of cardiac amyloidosis at a specialized center, the most frequent clinical manifestations were heart failure and sensory-motor neuropathy. Mortality was 25% per year, and in all cases as sudden death.
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Affiliation(s)
- Juan Muñoz-Moreno
- Médico residente de Cardiología. Instituto Nacional Cardiovascular - INCOR EsSalud. Lima, Perú.Instituto Nacional Cardiovascular - INCOR EsSaludLimaPerú
| | - José Añorga-Ocmin
- Médico residente de Cardiología. Instituto Nacional Cardiovascular - INCOR EsSalud. Lima, Perú.Instituto Nacional Cardiovascular - INCOR EsSaludLimaPerú
| | - Sandra Espinola-García
- Médico residente de Cardiología. Instituto Nacional Cardiovascular - INCOR EsSalud. Lima, Perú.Instituto Nacional Cardiovascular - INCOR EsSaludLimaPerú
| | - Cristian Aguilar-Carranza
- Médico asistente del Laboratorio de Patología. Instituto Nacional Cardiovascular INCOR EsSalud. Lima, Perú.Instituto Nacional Cardiovascular INCOR EsSaludLimaPerú
| | - Walter Alarco-León
- Unidad de Insuficiencia Cardíaca, Trasplante Cardíaco e Hipertensión Pulmonar. Lima, Perú.Unidad de Insuficiencia Cardíaca, Trasplante Cardíaco e Hipertensión PulmonarLimaPerú
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Elwazir MY, Bois JP, Abouezzeddine OF, Chareonthaitawee P. Imaging cardiac sarcoidosis and infiltrative diseases: diagnosis and therapeutic response. THE QUARTERLY JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING : OFFICIAL PUBLICATION OF THE ITALIAN ASSOCIATION OF NUCLEAR MEDICINE (AIMN) [AND] THE INTERNATIONAL ASSOCIATION OF RADIOPHARMACOLOGY (IAR), [AND] SECTION OF THE SOCIETY OF RADIOPHARMACEUTICAL CHEMISTRY AND BIOLOGY 2020; 64:51-73. [DOI: 10.23736/s1824-4785.20.03235-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Evidence of Concurrent Light Chain and Transthyretin Cardiac Amyloidosis in 2 Patients. JACC: CARDIOONCOLOGY 2020; 2:127-130. [PMID: 34396218 PMCID: PMC8352331 DOI: 10.1016/j.jaccao.2020.01.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 12/20/2019] [Accepted: 12/21/2019] [Indexed: 12/31/2022]
Key Words
- 99mTc-PYP, 99m-technetium pyrophosphate scintigraphy
- AL-CA, light chain cardiac amyloidosis
- ATTR-CA, transthyretin cardiac amyloidosis
- ATTRv, hereditary variant transthyretin amyloidosis
- ATTRwt, wild-type transthyretin amyloidosis
- ECG, electrocardiography
- IHC, immunohistochemistry
- LC-MS/MS, liquid chromatography tandem mass spectrometry
- PSM, protein spectrum match
- TTR, transthyretin
- amyloidosis
- cardiomyopathy
- diagnosis
- heart failure
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Abstract
Light chain amyloidosis is a deadly disease in which a monoclonal plasma cell dyscrasia produces misfolded immunoglobulin light chains (AL) that aggregate and form rigid amyloid fibrils. The amyloid deposits infiltrate one or more organs, leading to injury and severe dysfunction. The degree of cardiac involvement is a major driver of morbidity and mortality. Early diagnosis and treatment are crucial to prevent irreversible end-organ damage and improve overall survival. Treatment of AL cardiac amyloidosis involves eliminating the underlying plasma cell dyscrasia with chemotherapy and pursuing supportive heart failure management.
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[The prognostic value of baseline serum free light chain in immunoglobulin light-chain cardiac amyloidosis]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2020; 41:47-53. [PMID: 32023754 PMCID: PMC7357907 DOI: 10.3760/cma.j.issn.0253-2727.2020.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the prognostic value of baseline serum free light chain (sFLC) in immunoglobulin light-chain cardiac amyloidosis (AL-CA) . Methods: Thirty patients diagnosed with AL-CA from January 2012 to December 2016 at Beijing Chaoyang Hospital were included in this study to retrospectively evaluate the clinical data. The cut-off value of dFLC (involved sFLC minus uninvolved sFLC) was determined according to the receiver operator characteristic curve (ROC) and grouped, the prognoses of both groups were evaluated. Results: The onset age of all AL-CA patients was 57 years old. It occurred more commonly in men (21 cases, 70%) and the light chains of immunoglobulin composed mainly of type λ (22 cases, 73.3%) . Renal involvements occurred in 17 cases (56.7%) . The median value of difference between involved and uninvolved serum immunoglobulin free light chain levels (dFLC) was 162.9 (57.9-401.6) mg/L. More subjects in the high dFLC group had higher BNP (P=0.005) , and shorter median survival than those in the low dFLC group (15 months vs 47 months, P<0.001) . Similar results of median survival were observed when the patients were redivided by a new cut-off value of 180 mg/L for dFLC (high dFLC group: 22 months, low dFLC group: 40 months, P=0.001) , or a κ/λ ratio in which patients with κ type sFLC-ratio<3.79 and λ type sFLC-ratio≥0.06 were grouped into the low sFLC-ratio (37 months) , and the reverse the high sFLC-ratio ones (25 months, P=0.021) . In multivariate analysis, dFLC and New York Heart Association (NYHA) classification of cardiac function were two risk factors associated with all-cause mortality in patients, of them the hazard ratio for higher dFLC was 12.13 (95%CI 2.98-49.30, P<0.001) . Conclusion: Measurement of the sFLC level could implicate the prognosis of AL-CA.
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Karamitsos TD, Papanastasiou CA. Cardiac Magnetic Resonance T1 Mapping for Cardiac Amyloidosis. JACC Cardiovasc Imaging 2020; 13:81-82. [DOI: 10.1016/j.jcmg.2019.04.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 04/18/2019] [Indexed: 01/04/2023]
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Boldrini M, Cappelli F, Chacko L, Restrepo-Cordoba MA, Lopez-Sainz A, Giannoni A, Aimo A, Baggiano A, Martinez-Naharro A, Whelan C, Quarta C, Passino C, Castiglione V, Chubuchnyi V, Spini V, Taddei C, Vergaro G, Petrie A, Ruiz-Guerrero L, Moñivas V, Mingo-Santos S, Mirelis JG, Dominguez F, Gonzalez-Lopez E, Perlini S, Pontone G, Gillmore J, Hawkins PN, Garcia-Pavia P, Emdin M, Fontana M. Multiparametric Echocardiography Scores for the Diagnosis of Cardiac Amyloidosis. JACC Cardiovasc Imaging 2019; 13:909-920. [PMID: 31864973 DOI: 10.1016/j.jcmg.2019.10.011] [Citation(s) in RCA: 117] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 10/04/2019] [Indexed: 01/21/2023]
Abstract
OBJECTIVES This study aimed to investigate the accuracy of a broad range of echocardiographic variables to develop multiparametric scores to diagnose CA in patients with proven light chain (AL) amyloidosis or those with increased heart wall thickness who had amyloid was suspected. We also aimed to further characterize the structural and functional changes associated with amyloid infiltration. BACKGROUND Cardiac amyloidosis (CA) is a serious but increasingly treatable cause of heart failure. Diagnosis is challenging and frequently unclear at echocardiography, which remains the most often used imaging tool. METHODS We studied 1,187 consecutive patients evaluated at 3 referral centers for CA and analyzed morphological, functional, and strain-derived echocardiogram parameters with the aim of developing a score-based diagnostic algorithm. Cardiac amyloid burden was quantified by using extracellular volume measurements at cardiac magnetic resonance. RESULTS A total of 332 patients were diagnosed with AL amyloidosis and 339 patients with transthyretin CA. Concentric remodeling and strain-derived parameters displayed the best diagnostic performance. A multivariable logistic regression model incorporating relative wall thickness, E wave/e' wave ratio, longitudinal strain, and tricuspid annular plane systolic excursion had the greatest diagnostic performance in AL amyloidosis (area under the curve: 0.90; 95% confidence interval: 0.87 to 0.92), whereas the addition of septal apical-to-base ratio yielded the best diagnostic accuracy in the increased heart wall thickness group (area under the curve: 0.80; 95% confidence interval: 0.85 to 0.90). CONCLUSIONS Specific functional and structural parameters characterize different burdens of CA deposition with different diagnostic performances and enable the definition of 2 scores that are sensitive and specific tools with which diagnose or exclude CA.
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Affiliation(s)
- Michele Boldrini
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom; Emergency Department, Internal Medicine Department, Amyloidosis Research and Treatment Center, Istituto di Ricerca a Carattere Clinico e Scientifico Policlinico San Matteo Foundation, Pavia, Italy
| | - Francesco Cappelli
- Tuscan Regional Amyloid Centre, Careggi University Hospital, Florence, Italy
| | - Liza Chacko
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom
| | - Maria Alejandra Restrepo-Cordoba
- Department of Cardiology, Hospital Puerta de Hierro Majadahonda, Madrid, Spain; Centro de Investigación Biomédica en Red Enfermedades Cardiovaculares, Madrid, Spain
| | - Angela Lopez-Sainz
- Department of Cardiology, Hospital Puerta de Hierro Majadahonda, Madrid, Spain; Centro de Investigación Biomédica en Red Enfermedades Cardiovaculares, Madrid, Spain
| | - Alberto Giannoni
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy; Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
| | - Alberto Aimo
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom; Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
| | | | - Ana Martinez-Naharro
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom
| | - Carol Whelan
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom
| | - Cristina Quarta
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom
| | - Claudio Passino
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy; Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
| | | | | | | | | | - Giuseppe Vergaro
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy; Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
| | - Aviva Petrie
- Eastman Dental Institute, University College London, Grays Inn Road, London, United Kingdom
| | - Luis Ruiz-Guerrero
- Department of Cardiology, Hospital Puerta de Hierro Majadahonda, Madrid, Spain
| | - Vanessa Moñivas
- University Francisco de Vitoria, Pozuelo de Alarcón, Madrid, Spain
| | | | - Jesus G Mirelis
- Department of Cardiology, Hospital Puerta de Hierro Majadahonda, Madrid, Spain; Centro de Investigación Biomédica en Red Enfermedades Cardiovaculares, Madrid, Spain
| | - Fernando Dominguez
- Department of Cardiology, Hospital Puerta de Hierro Majadahonda, Madrid, Spain; Centro de Investigación Biomédica en Red Enfermedades Cardiovaculares, Madrid, Spain
| | - Esther Gonzalez-Lopez
- Department of Cardiology, Hospital Puerta de Hierro Majadahonda, Madrid, Spain; Centro de Investigación Biomédica en Red Enfermedades Cardiovaculares, Madrid, Spain
| | - Stefano Perlini
- Emergency Department, Internal Medicine Department, Amyloidosis Research and Treatment Center, Istituto di Ricerca a Carattere Clinico e Scientifico Policlinico San Matteo Foundation, Pavia, Italy
| | | | - Julian Gillmore
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom
| | - Philip N Hawkins
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom
| | - Pablo Garcia-Pavia
- Department of Cardiology, Hospital Puerta de Hierro Majadahonda, Madrid, Spain; Centro de Investigación Biomédica en Red Enfermedades Cardiovaculares, Madrid, Spain; University Francisco de Vitoria, Pozuelo de Alarcón, Madrid, Spain
| | - Michele Emdin
- Fondazione Toscana Gabriele Monasterio, Pisa, Italy; Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
| | - Marianna Fontana
- National Amyloidosis Centre, University College London, Royal Free Campus, London, United Kingdom.
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Increasing Rate of Hospital Admissions in Patients With Amyloidosis (from the National Inpatient Sample). Am J Cardiol 2019; 124:1765-1769. [PMID: 31607373 DOI: 10.1016/j.amjcard.2019.08.045] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 08/15/2019] [Accepted: 08/20/2019] [Indexed: 12/19/2022]
Abstract
Cardiac amyloidosis is an increasingly recognized cause of heart failure with preserved or mildly reduced ejection fraction with emerging treatment options. We sought to analyze the temporal trends and impact of hospital admissions in patients with amyloidosis. The National Inpatient Sample was queried to identify patients from 2005 to 2014 who were hospitalized with a diagnosis of amyloidosis using ICD9 codes. Trends over time of prevalence, demographics, co-morbidities, and outcomes were described. Propensity-matching was used to assess the impact of amyloidosis on in-hospital outcomes, including mortality. A total of 156,914 admissions in patients with amyloidosis (age 69.86 +/- 12.33 years, 45.7% female, 68.5% Caucasian) were identified. Hospitalizations more than doubled with a peak of 21,740 per year and 62 per 100,000 admissions in 2014. Over time, patients admitted with amyloidosis were older and more likely to have co-morbid medical conditions. A diagnosis of heart failure was present in 34.7% of patients, increased over time (p = 0.001), and was associated with further morbidity and mortality. In a propensity-matched analysis, patients admitted with amyloidosis had a longer length of stay (7.5 vs 6.2 days), were less likely to be discharged home (43.6% vs 48.7%), and were more likely to die during the hospitalization (7.4% vs 4.9%, p <0.001 for all). In conclusion, inpatient hospitalizations in the United States in patients with amyloidosis have increased over time and are associated with high morbidity and mortality, particularly when there is concomitant heart failure.
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Barrett CD, Dobos K, Liedtke M, Tuzovic M, Haddad F, Kobayashi Y, Lafayette R, Fowler MB, Arai S, Schrier S, Witteles RM. A Changing Landscape of Mortality for Systemic Light Chain Amyloidosis. JACC-HEART FAILURE 2019; 7:958-966. [DOI: 10.1016/j.jchf.2019.07.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 07/10/2019] [Accepted: 07/11/2019] [Indexed: 11/28/2022]
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Trachtenberg BH, Kamble RT, Rice L, Araujo-Gutierrez R, Bhimaraj A, Guha A, Park MH, Hussain I, Bruckner BA, Suarez EE, Victor DW, Adrogue HE, Baker KR, Estep JD. Delayed autologous stem cell transplantation following cardiac transplantation experience in patients with cardiac amyloidosis. Am J Transplant 2019; 19:2900-2909. [PMID: 31152491 DOI: 10.1111/ajt.15487] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 04/30/2019] [Accepted: 05/08/2019] [Indexed: 01/25/2023]
Abstract
This study sought to retrospectively investigate the outcomes of patients with light-chain amyloidosis (AL) with advanced cardiac involvement who were treated with a strategy of heart transplantation (HT) followed by delayed autologous stem cell transplantation (ASCT) at 1-year posttransplant. Patients with AL amyloidosis with substantial cardiac involvement have traditionally had very poor survival (eg, several months). A few select centers have reported their outcomes for HT followed by a strategy of early ASCT (ie, 6 months) for CA. The outcomes of patients undergoing a delayed strategy have not been reported. All patients with AL amyloidosis at a single institution undergoing evaluation for HT from 2004-2018 were included. Retrospective analyses were performed. Sixteen patients underwent HT (including two combined heart-kidney transplant) for AL amyloidosis. ASCT was performed in a total of nine patients to date at a median 13.5 months (12.8-32.9 months) post-HT. Survival was 87.5% at 1 year and 76.6% at 5 years, comparable to institutional outcomes for nonamyloid HT recipients. In addition to these 16 patients, two patients underwent combined heart-lung transplantation. A strategy of delayed ASCT 1-year post-HT for patients with AL amyloidosis is feasible, safe, and associated with comparable outcomes to those undergoing an earlier ASCT strategy.
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Affiliation(s)
- Barry H Trachtenberg
- Division of Cardiology, JC Walter Jr. Transplant Center, Houston Methodist Hospital, Houston, Texas
| | - Rammurti T Kamble
- Center for Cell and Gene Therapy, Baylor College of Medicine and Houston Methodist Hospital, Houston, Texas
| | - Lawrence Rice
- Division of Hematology, Department of Medicine, Houston Methodist Hospital and Weill Cornell Medical College, Houston, Texas
| | - Raquel Araujo-Gutierrez
- Division of Cardiology, JC Walter Jr. Transplant Center, Houston Methodist Hospital, Houston, Texas
| | - Arvind Bhimaraj
- Division of Cardiology, JC Walter Jr. Transplant Center, Houston Methodist Hospital, Houston, Texas
| | - Ashrith Guha
- Division of Cardiology, JC Walter Jr. Transplant Center, Houston Methodist Hospital, Houston, Texas
| | - Myung H Park
- Division of Cardiology, JC Walter Jr. Transplant Center, Houston Methodist Hospital, Houston, Texas
| | - Imad Hussain
- Division of Cardiology, JC Walter Jr. Transplant Center, Houston Methodist Hospital, Houston, Texas
| | - Brian A Bruckner
- Division of Cardiothoracic Surgery, JC Walter Jr. Transplant Center, Houston Methodist Hospital, Houston, Texas
| | - Erik E Suarez
- Division of Cardiothoracic Surgery, JC Walter Jr. Transplant Center, Houston Methodist Hospital, Houston, Texas
| | - David W Victor
- Division of Hepatology, JC Walter Jr. Transplant Center, Houston Methodist Hospital, Houston, Texas
| | - Horacio E Adrogue
- Division of Nephrology, JC Walter Jr. Transplant Center, Houston Methodist Hospital, Houston, Texas
| | - Kelty R Baker
- Division of Hematology, Baylor College of Medicine, Houston, Texas
| | - Jerry D Estep
- Division of Cardiology, Cleveland Clinic Foundation, Cleveland, Ohio
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Donnelly JP, Hanna M, Sperry BW, Seitz WH. Carpal Tunnel Syndrome: A Potential Early, Red-Flag Sign of Amyloidosis. J Hand Surg Am 2019; 44:868-876. [PMID: 31400950 DOI: 10.1016/j.jhsa.2019.06.016] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 06/17/2019] [Indexed: 02/02/2023]
Abstract
Carpal tunnel syndrome (CTS) can be caused by the deposition and accumulation of misfolded proteins called amyloid and is often an early manifestation of systemic amyloidosis. In patients undergoing surgery for idiopathic CTS, a recent study identified amyloidosis by tenosynovial biopsy in 10.2% of men older than 50 years and women older than 60 years; all positive patients had bilateral symptoms. These findings have led to a renewed interest in amyloidosis as an etiology of CTS. The 2 most common systemic amyloidoses, immunoglobulin light chain and transthyretin amyloidosis, affect the heart, nerves, and other organ systems throughout the body including the soft tissues. Patients with cardiac involvement of amyloidosis have an especially poor prognosis if the disease remains unrecognized and untreated. Early diagnosis is paramount, and patients classically present with cardiac disease several years after being operated on by a hand surgeon for carpal tunnel release. Herein, we present a review of amyloidosis as it pertains to CTS and an algorithm for the detection of amyloidosis in patients undergoing carpal tunnel release. Implementation of this straightforward algorithm will allow for early diagnosis of amyloidosis, a group of progressive and lethal diseases.
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Affiliation(s)
- Joseph P Donnelly
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Beachwood, OH
| | - Mazen Hanna
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Beachwood, OH
| | - Brett W Sperry
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Beachwood, OH; Mid America Heart Institute, Saint Luke's Hospital of Kansas City, Kansas City, MO
| | - William H Seitz
- Department of Orthopaedic Surgery, Orthopaedic and Rheumatologic Institute, Cleveland Clinic, Beachwood, OH.
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Czobor P, Hung YY, Baer D, McGlothlin D, Weisshaar D, Zaroff J. Amyloid cardiomyopathy in a large integrated health care system. Am Heart J 2019; 216:42-52. [PMID: 31401442 DOI: 10.1016/j.ahj.2019.06.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 06/08/2019] [Indexed: 12/19/2022]
Abstract
BACKGROUND Light Chain (AL) and transthyretin (ATTR) amyloidosis are the most common forms of amyloid cardiomyopathy. Population based studies describing the epidemiology and clinical features of amyloid cardiomyopathy are often based in tertiary medical centers and thus may be limited by referral bias. METHODS AND RESULTS We performed a cohort study of 198 patients diagnosed and treated in the Kaiser Permanente Northern California health care system who had a confirmed diagnosis of cardiac amyloidosis between 2001 and 2016. Associations between demographic, clinical, laboratory and imaging data and patient outcomes were quantified using multivariable Cox proportional hazard models for both the AL and ATTR groups. The average length of follow up was 2.8 years (SD 2.9 years) and overall survival was 69.1 percent at one year and 35.4 percent at five years. In the AL group, lower left ventricular ejection fraction (HR 1.33 per 5-point decrease, P < .001), coronary artery disease (HR 3.56, P < .001), and diabetes mellitus (HR 3.19, P < .001) were associated with all-cause mortality. Increasing age at the time of diagnosis with associated with higher all-cause mortality in both the AL and ATTR groups. Higher levels of B-type natriuretic peptide were associated with all-cause mortality in both groups: Top quartile BNP HR 6.17, P < .001 for AL and HR 8.16, P = .002 for ATTR. CONCLUSIONS This study describes a large cohort of patients with amyloid cardiomyopathy derived from a community based, integrated healthcare system and describes demographic, clinical, and laboratory characteristics associated with mortality and heart failure hospitalization. In this population, coronary artery disease, diabetes mellitus, and high BNP levels were strongly associated with mortality.
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Nagano N, Yano T, Fujita Y, Kouzu H, Koyama M, Ikeda H, Yasui K, Muranaka A, Nishikawa R, Takahashi R, Kishiue N, Yuda S, Miura T. Assessment of prognosis in immunoglobulin light chain amyloidosis patients with severe heart failure: a predictive value of right ventricular function. Heart Vessels 2019; 35:521-530. [PMID: 31559459 DOI: 10.1007/s00380-019-01513-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 09/20/2019] [Indexed: 12/26/2022]
Abstract
Although the benefit of updated therapeutic regimens, including bortezomib, on the survival of immunoglobulin light chain (AL) amyloidosis patients with heart failure (HF) has been reported, predictors of mortality in the patients treated with the updated therapy remain unclear. We retrospectively enrolled AL amyloidosis patients who had severe HF at the time of diagnosis and received the updated therapy, including bortezomib (n = 19, 61 ± 6 years old, 68% male). Severe HF was defined as the presence of both NYHA functional class III or IV and BNP > 200 pg/ml or NT-pro-BNP > 900 pg/ml. One-year mortality rate during follow-up after commencement of the treatment was 37%. Left ventricular morphological parameters and indexes of left ventricular diastolic function on admission were similar in the non-survivors and survivors. However, non-survivors had higher incidences of atrial fibrillation and ventricular tachycardia, higher serum total bilirubin levels (1.34 ± 0.55 vs. 0.61 ± 0.29 mg/dl), higher right atrial volume index (RAVI 49.7 ± 29.9 vs. 27.3 ± 6.8 ml/m2), lower tricuspid annular peak velocities during systole (RVs' 8.0 ± 1.8 vs. 11.6 ± 3.7 cm/sec) and late diastole (RVa' 3.4 ± 0.9 vs. 11.4 ± 5.3 cm/sec), and larger inferior vena cava dimension (22.7 ± 6.4 vs. 16.3 ± 4.9 mm) than those in survivors. Kaplan-Meier curve analyses showed that larger RAVI and lower RVs' and RVa', but not left ventricular systolic/diastolic dysfunction, predicted higher mortality during 1-year follow-up. The present results suggest that the presence of right-sided heart abnormality on admission is associated with high 1-year mortality in AL amyloidosis patients with severe HF under the updated therapeutic regimens.
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Affiliation(s)
- Nobutaka Nagano
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan
| | - Toshiyuki Yano
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan.
| | - Yugo Fujita
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan
| | - Hidemichi Kouzu
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan
| | - Masayuki Koyama
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan
- Department of Public Health, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Hiroshi Ikeda
- Department of Hematology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Kenji Yasui
- Division of Laboratory Diagnosis, Sapporo Medical University Hospital, Sapporo, Japan
| | - Atsuko Muranaka
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan
| | - Ryo Nishikawa
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan
| | - Ryo Takahashi
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan
| | - Naohiro Kishiue
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan
| | - Satoshi Yuda
- Division of Cardiology, Cardiovascular Center, Teine Keijinkai Hospital, Sapporo, Japan
| | - Tetsuji Miura
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan
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Tenosynovial and Cardiac Amyloidosis in Patients Undergoing Carpal Tunnel Release. J Am Coll Cardiol 2019; 72:2040-2050. [PMID: 30336828 DOI: 10.1016/j.jacc.2018.07.092] [Citation(s) in RCA: 189] [Impact Index Per Article: 37.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 07/23/2018] [Accepted: 07/26/2018] [Indexed: 11/23/2022]
Abstract
BACKGROUND Patients with cardiac amyloidosis often have carpal tunnel syndrome that precedes cardiac manifestations by several years. However, the prevalence of cardiac involvement at the time of carpal tunnel surgery has not been established. OBJECTIVES The authors sought to identify the prevalence and type of amyloid deposits in patients undergoing carpal tunnel surgery and evaluate for cardiac involvement. The authors also sought to determine if patients with soft tissue transthyretin (TTR) amyloid had abnormal TTR tetramer kinetic stability. METHODS This was a prospective, cross-sectional, multidisciplinary study of consecutive men age ≥50 years and women ≥60 years undergoing carpal tunnel release surgery. Biopsy specimens of tenosynovial tissue were obtained and stained with Congo red; those with confirmed amyloid deposits were typed with mass spectrometry and further evaluated for cardiac involvement with biomarkers, electrocardiography, echocardiography with longitudinal strain, and technetium pyrophosphate scintigraphy. Additionally, serum TTR concentration and tetramer kinetic stability were examined. RESULTS Of 98 patients enrolled (median age 68 years, 51% male), 10 (10.2%) had a positive biopsy for amyloid (7 ATTR, 2 light chain [AL], 1 untyped). Two patients were diagnosed with hereditary ATTR (Leu58His and Ala81Thr), 2 were found to have cardiac involvement (1 AL, 1 ATTR wild-type), and 3 were initiated on therapy. In those patients who had biopsy-diagnosed ATTR, there was no difference in plasma TTR concentration or tetramer kinetic stability. CONCLUSIONS In a cohort of patients undergoing carpal tunnel release surgery, Congo red staining of tenosynovial tissue detected amyloid deposits in 10.2% of patients. Concomitant cardiac evaluation identified patients with involvement of the myocardium, allowing for implementation of disease-modifying therapy. (Carpal Tunnel Syndrome and Amyloid Cardiomyopathy; NCT02792790).
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Screening for Transthyretin Amyloid Cardiomyopathy in Everyday Practice. JACC-HEART FAILURE 2019; 7:709-716. [DOI: 10.1016/j.jchf.2019.04.010] [Citation(s) in RCA: 124] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 04/15/2019] [Accepted: 04/16/2019] [Indexed: 11/21/2022]
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