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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: 126] [Impact Index Per Article: 25.2] [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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White JA, Fine NM. Recent Advances in Cardiovascular Imaging Relevant to the Management of Patients with Suspected Cardiac Amyloidosis. Curr Cardiol Rep 2017; 18:77. [PMID: 27319007 DOI: 10.1007/s11886-016-0752-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Cardiac amyloidosis is a form of infiltrative cardiomyopathy typically presenting with progressive heart failure. The clinical presentation and morphological findings often overlap with other cardiovascular diseases, and frequently results in misdiagnosis and consequent under-reporting. Cardiovascular imaging is playing an increasingly important diagnostic and prognostic role in this referral population, and is reducing the reliance on endomyocardial biopsy as a confirmatory testing. Advancements across multiple cardiac imaging modalities, including echocardiography, magnetic resonance imaging, nuclear imaging, and computed tomography, are improving diagnostic accuracy and offering novel approaches to sub-type differentiation and prognostication. This review explores recent advancements in cardiac imaging for the diagnosis, typing, and staging of cardiac amyloidosis, with a focus on new and evolving techniques. Emphasis is also placed on the promise of non-invasive cardiac imaging to provide value across the spectrum of this clinical disease, from early disease identification (prior to the development of increased wall thickness) through to markers of advanced disease associated with early mortality.
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Affiliation(s)
- James A White
- Stephenson Cardiovascular Imaging Center, University of Calgary, Calgary, Alberta, Canada. .,Division of Cardiology, Department of Cardiac Sciences, Libin Cardiovascular Institute of Alberta, Cummings School of Medicine, University of Calgary, Calgary, Alberta, Canada. .,Stephenson Cardiovascular Imaging Center, Foothills Medical Centre Suite #0700, SSB, 1403-29 Street NW, Calgary, Alberta, T2N 2T9, Canada.
| | - Nowell M Fine
- Division of Cardiology, Department of Cardiac Sciences, Libin Cardiovascular Institute of Alberta, Cummings School of Medicine, University of Calgary, Calgary, Alberta, Canada.,South Health Campus, 4448 Front Street SE, Calgary, Alberta, T3M 1M4, Canada
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Castaño A, Manson DK, Maurer MS, Bokhari S. Transthyretin Cardiac Amyloidosis in Older Adults: Optimizing Cardiac Imaging to the Corresponding Diagnostic and Management Goal. CURRENT CARDIOVASCULAR RISK REPORTS 2017; 11:17. [PMID: 29057029 PMCID: PMC5648026 DOI: 10.1007/s12170-017-0541-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
PURPOSE OF REVIEW Transthyretin cardiac amyloidosis is increasingly recognized as an important cause of heart failure in older adults. Many cardiac imaging modalities have evolved to evaluate transthyretin cardiac amyloidosis and include 2D echocardiography with tissue Doppler and speckle-strain imaging, nuclear scintigraphy, cardiac magnetic resonance imaging, and positron emission tomography. The purpose of this review is to highlight the optimal selection of advanced cardiac imaging techniques with corresponding diagnostic goals including raising suspicion, making an early diagnosis, and subtyping transthyretin cardiac amyloid, as well as management goals including assessment of ventricular impairment, prognosticating, and monitoring disease progression. Potential benefits of optimizing cardiac imaging in the elderly patient with transthyretin cardiac amyloidosis may include enhanced and earlier diagnosis and refined long-term management. RECENT FINDINGS Advances in cardiac imaging techniques are changing diagnostic and management algorithms for transthyretin cardiac amyloidosis. SUMMARY With a new era of novel therapeutics, enhanced recognition, and earlier diagnosis approaching, selecting the appropriate non-invasive cardiac imaging modality will be essential for optimal care in the elderly patient with transthyretin cardiac amyloidosis.
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Affiliation(s)
- Adam Castaño
- Columbia University College of Physicians & Surgeons, Division of Cardiology, Center for Advanced Cardiac Care, Laboratory of Nuclear Cardiology, New York, NY 10032-3784, USA,
| | - Daniel K Manson
- Columbia University College of Physicians & Surgeons, Division of Cardiology, Center for Advanced Cardiac Care, New York, NY 10032-3784, USA
| | - Mathew S Maurer
- Columbia University College of Physicians & Surgeons, Division of Cardiology, Center for Advanced Cardiac Care, New York, NY 10032-3784, USA
| | - Sabahat Bokhari
- Columbia University College of Physicians & Surgeons, Division of Cardiology, Laboratory of Nuclear Cardiology, New York, NY 10032-3784, USA
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Coiro S, Huttin O, Bozec E, Selton-Suty C, Lamiral Z, Carluccio E, Trinh A, Fraser AG, Ambrosio G, Rossignol P, Zannad F, Girerd N. Reproducibility of echocardiographic assessment of 2D-derived longitudinal strain parameters in a population-based study (the STANISLAS Cohort study). Int J Cardiovasc Imaging 2017; 33:1361-1369. [DOI: 10.1007/s10554-017-1117-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 03/11/2017] [Indexed: 01/05/2023]
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Barge-Caballero G, Couto-Mallón D, Barge-Caballero E, Paniagua-Martín MJ, Barriales-Villa R, Pombo-Otero J, Debén-Ariznavarreta G, Vázquez-Rodríguez JM, Crespo-Leiro MG. ¿Cómo enfrentarse a una sospecha clínica de amiloidosis cardíaca? Un enfoque práctico para el diagnóstico. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.carcor.2016.05.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Stofer F, Barretto MF, Gouvea AL, Ribeiro M, Neves M, Gismondi RA, Mocarzel LO. A Rare Case of Ascites due to Peritoneal Amyloidosis. AMERICAN JOURNAL OF CASE REPORTS 2016; 17:439-43. [PMID: 27353538 PMCID: PMC4928597 DOI: 10.12659/ajcr.898357] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND The clinical manifestations of amyloidosis depend on the type of insoluble protein as well as the location of amyloid deposits in tissues or organs. In the gastrointestinal tract, the small intestine is the most common site of amyloid deposits, whereas peritoneal involvement and ascites are rare. CASE REPORT We report on a case of ascites due to peritoneal amyloidosis. A 65-year-old patient was admitted to our institution due to anasarca and pulmonary congestion, mimicking heart failure. We started the patient on diuretics and vasodilators. Despite improvement in pulmonary congestion and peripheral edema, his ascites was not reduced. Echocardiogram revealed restrictive cardiomyopathy and a speckle-tracking pattern suggestive of cardiac amyloidosis. Subcutaneous and peritoneal biopsies revealed amyloidosis. CONCLUSIONS Amyloidosis is rare in the peritoneum and is usually asymptomatic. Ascites occurs in only 20% of patients with peritoneal amyloidosis. We searched PubMed using "ascites" and "amyloidosis" and identified only eight case reports of amyloidosis with ascites. Physicians should be particularly careful in heart failure and anasarca cases when ascites is disproportional or not responsive to diuretic treatment. To date, there is no specific treatment for peritoneal amyloidosis.
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Affiliation(s)
- Fernanda Stofer
- Department of Clinical Medicine, Fluminense Federal University, Niterói, Brazil
| | | | - Ana Luisa Gouvea
- Department of Pathology, Fluminense Federal University, Niterói, Brazil
| | - Mario Ribeiro
- Department of Clinical Medicine, Fluminense Federal University, Niterói, Brazil
| | - Marcio Neves
- Department of Clinical Medicine, Fluminense Federal University, Niterói, Brazil
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Narotsky DL, Castano A, Weinsaft JW, Bokhari S, Maurer MS. Wild-Type Transthyretin Cardiac Amyloidosis: Novel Insights From Advanced Imaging. Can J Cardiol 2016; 32:1166.e1-1166.e10. [PMID: 27568874 DOI: 10.1016/j.cjca.2016.05.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 05/06/2016] [Accepted: 05/07/2016] [Indexed: 12/24/2022] Open
Abstract
Amyloidosis is caused by extracellular deposition of abnormal protein fibrils, resulting in destruction of tissue architecture and impairment of organ function. The most common forms of systemic amyloidosis are light-chain and transthyretin-related (ATTR). ATTR can result from an autosomal dominant hereditary transmission of mutated genes in the transthyretin or from a wild-type form of disease (ATTRwt), previously known as senile cardiac amyloidosis. With the aging of the worldwide population, ATTRwt will emerge as the most common type of cardiac amyloidosis that clinicians encounter. Diagnosis of systemic amyloidosis is often delayed, either because of the false assumption that it is a rare disease, or because of misdiagnosis as a result of mistaking it with other conditions. Clinicians must integrate clinical clues from history, physical examination, and common diagnostic tests to raise suspicion for ATTRwt. The historical gold standard for diagnosis of cardiac amyloid is endomyocardial biopsy analysis with pathological distinction of precursor protein type, but this method often results in delayed diagnosis because of the limited availability of expertise to perform and interpret the endomyocardial biopsy specimen. Emerging noninvasive imaging modalities provide easier, accurate screening for ATTRwt. These modalities include advanced echocardiography, using strain imaging and the myocardial contraction fraction; nuclear scintigraphy, which can differentiate between ATTR and light-chain cardiac amyloid; and cardiac magnetic resonance imaging, using extracellular volume measurement, late gadolinium enhancement, and distinct T1 mapping. These novel approaches reveal insights into the prevalence, clinical course, morphological effects, and prognosis of ATTRwt.
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Affiliation(s)
- David L Narotsky
- Division of Cardiology, Columbia University Medical Center, New York, New York, USA
| | - Adam Castano
- Division of Cardiology, Columbia University Medical Center, New York, New York, USA
| | - Jonathan W Weinsaft
- Division of Cardiology, Weill Cornell Medical Center, New York, New York, USA
| | - Sabahat Bokhari
- Division of Cardiology, Columbia University Medical Center, New York, New York, USA
| | - Mathew S Maurer
- Division of Cardiology, Columbia University Medical Center, New York, New York, USA.
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Coelho T, Maurer MS, Suhr OB. THAOS - The Transthyretin Amyloidosis Outcomes Survey: initial report on clinical manifestations in patients with hereditary and wild-type transthyretin amyloidosis. Curr Med Res Opin 2013. [PMID: 23193944 DOI: 10.1185/03007995.2012.754348] [Citation(s) in RCA: 225] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Transthyretin (TTR) amyloidosis is a rare, life-threatening, systemic, autosomal dominant condition occurring in adults, with two main forms: hereditary (associated with TTR gene mutations) and wild-type. Studies indicate considerable heterogeneity in disease presentation, with predominantly polyneuropathic, predominantly cardiac, or mixed phenotypes. METHODS THAOS - the Transthyretin Amyloidosis Outcomes Survey - is the first global, multicenter, longitudinal, observational survey that collects data on the natural history of TTR amyloidosis (ClinicalTrials.gov: NCT00628745). This paper presents data on signs and symptoms, neurological and cardiac assessments, biomarkers and quality of life in the patients enrolled in THAOS from its inception in December 2007 to September 2011. RESULTS At the time of this analysis, data were available from 611 symptomatic patients with hereditary TTR amyloidosis, 67 symptomatic patients with wild-type TTR amyloidosis, and 274 currently asymptomatic individuals with a TTR mutation. Nineteen countries were participating in the registry. The largest patient groups came from Portugal (n = 453), the USA (n = 129), Italy (n = 70), and Japan (n = 68). Predominant symptom presentation in patients with hereditary TTR amyloidosis differed according to the underlying disease-causing mutation (polyneuropathy for Val30Met, cardiomyopathy for Val122Ile and Leu111Met, and mixed for Glu89Gln). However, each mutation was associated with clear multisystem involvement. Similarly, although cardiomyopathy was predominant in patients with wild-type TTR amyloidosis, many also showed symptoms consistent with neuropathy. Quality of life in patients with hereditary TTR amyloidosis, but not asymptomatic carriers of disease-causing mutations, was severely impaired relative to that of the age-matched general US population. CONCLUSIONS This preliminary analysis highlights the considerable phenotypic heterogeneity for neurological and cardiac manifestations in patients with hereditary and wild-type TTR amyloidosis and the necessity of providing multidisciplinary care. THAOS registry data will help better characterize the diverse presentation and course of TTR amyloidosis worldwide and aid in improving and standardizing diagnosis and treatment.
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Affiliation(s)
- Teresa Coelho
- Centre for the Study of Amyloidoses, Hospital Santo António, Porto, Portugal
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Suhr OB, Gustavsson S, Heldestad V, Hörnsten R, Lindqvist P, Nordh E, Wiklund U. New insights into the clinical evaluation of hereditary transthyretin amyloidosis patients: a single center's experience. Degener Neurol Neuromuscul Dis 2012; 2:93-106. [PMID: 30890882 PMCID: PMC6065582 DOI: 10.2147/dnnd.s24652] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Over the last decade, new medical treatment modalities have emerged based on increased insights into amyloid formation. With the increased possibilities for treatment of amyloidosis caused by transthyretin (TTR) amyloid deposits comes the need for diagnostic procedures for early diagnosis and better tools to follow disease progression. This is of particular importance in clinical trials evaluating the efficacy of new treatments. Until recently, the treatment of TTR amyloidosis (ATTR) was based solely on liver transplantation, a procedure that has halted disease progression in many patients. Liver transplantation has been especially effective in patients under the age of 50 years carrying the TTR V30M mutation, whereas the outcome of the procedure has been variable for others, particularly elderly male patients and those carrying a non-V30M mutation. This review concentrates on new insights derived from our center's experience with liver transplantation, how to implement this experience in evaluation of new treatment modalities for ATTR, and how to facilitate early diagnosis of neuropathy with easily available diagnostic tools. Attention has focused on manifestations of the disease that involve the heart and the peripheral nervous system; change in peripheral nerve function has been the primary endpoint in two controlled clinical trials, one finished and one ongoing. New insights into the amyloid formation process and the lessons learned from liver transplantation give the opportunity to design potentially effective treatment modalities for ATTR. It appears reasonable to suspect that a combination of different treatment modalities may be required to treat the disease, and that different treatment regimes will be designed according to the phenotype of the disease. For the patients and their relatives there is now a solid foundation for optimism, with prospects of several effective medical treatment possibilities within the coming decade.
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Affiliation(s)
- Ole B Suhr
- Department of Public Health and Clinical Medicine,
| | | | | | - Rolf Hörnsten
- Department of Surgical and Perioperative Sciences, Clinical Physiology, Heart Centre
| | | | - Erik Nordh
- Department of Pharmacology and Clinical Neuroscience
| | - Urban Wiklund
- Department of Radiation Sciences, Biomedical Engineering, Umeå University, Umeå, Sweden
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Baccouche H, Maunz M, Beck T, Gaa E, Banzhaf M, Knayer U, Fogarassy P, Beyer M. Differentiating cardiac amyloidosis and hypertrophic cardiomyopathy by use of three-dimensional speckle tracking echocardiography. Echocardiography 2012; 29:668-77. [PMID: 22486396 DOI: 10.1111/j.1540-8175.2012.01680.x] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
INTRODUCTION Cardiac amyloidosis (CA) and hypertrophic cardiomyopathy (HCM) are important differential diagnosis of left ventricular hypertrophy. The aim of this study was to investigate if three-dimensional (3D) speckle tracking-derived functional parameters enabled differentiation of CA and HCM by a disease-specific pattern. METHODS Twelve patients with CA and 12 patients with HCM were included. CA and HCM were diagnosed by contrast-enhanced cardiovascular magnetic resonance (CMR). Three-dimensional speckle tracking echocardiography with wall motion analysis was performed for strain (radial [RS(%)], longitudinal [LS (-%)], and circumferential [CS (-%)]), rotation (ROT [degree]), and twist (TWT [degree]). Intergroup comparison included normalized values from 49 healthy volunteers. RESULTS Averaged RS, LS, CS, ROT, and TWT were investigated at basal, midventricular, and apical levels. With some exceptions, 3D speckle tracking function parameters were mostly lower in the HCM and minimal in the CA group as compared to controls. Comparing CA and HCM, basal RS was significantly reduced in patients with amyloidosis (7.5 ± 19.7 vs. 22.3 ± 22.7; P < 0.0001), furthermore the "physiological" gradient of basoapically decreasing RS, which was reduced, but still preserved in HCM, showed a clear "inverse pattern" in patients with amyloidosis, comprising a gradual increase from base to apex. Correlation analysis of 3D speckle tracking function and CMR late gadolinium enhancement (LGE) revealed high inverse correlation of RS and LGE in CA (r =-0.82) and only mild correlation in HCM, followed by CS as second best parameter. An increasing/decreasing basoapical RS gradient yielded a sensitivity of 83% versus the CMR-derived diagnosis "CA" and "HCM." CONCLUSIONS Three-dimensional speckle tracking echocardiography demonstrated significant differences in CA and HCM. The basoapical RS gradient displayed oppositional characteristics in CA and HCM, suggesting a "function-pattern-based" differentiation of amyloidosis and HCM.
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Affiliation(s)
- Hannibal Baccouche
- Department of Medicine II, Hospital Kirchheim/Teck, Kreiskliniken Esslingen, Germany.
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