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  1. Article ; Online: Imaging cardiac sarcoidosis and infiltrative diseases: diagnosis and therapeutic response.

    Elwazir, Mohamed Y / Bois, John P / Abouezzeddine, Omar F / Chareonthaitawee, Panithaya

    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...

    2020  Volume 64, Issue 1, Page(s) 51–73

    Abstract: Infiltrative heart disease is an encompassing term referring to different pathological entities that involve infiltration of the myocardium by either abnormal substances or inflammatory cells. These infiltrates can impair cellular function, induce ... ...

    Abstract Infiltrative heart disease is an encompassing term referring to different pathological entities that involve infiltration of the myocardium by either abnormal substances or inflammatory cells. These infiltrates can impair cellular function, induce necrosis and fibrosis, or otherwise disrupt myocardial architecture resulting in a wide spectrum of structural and functional impairment. Depending on the specific disorder and stage of disease, patients may present with minimal cardiac abnormalities, or may have findings of advanced restrictive and/or dilated cardiomyopathy. Furthermore, patients may often be misdiagnosed with more common conditions such as hypertensive, hypertrophic or ischemic cardiomyopathies. Correlation of cardiac findings with clinical, serologic or pathologic data is critical in many of these conditions. While cardiac involvement may be detected by echocardiography, other imaging modalities such as cardiac magnetic resonance, single-photon emission computed tomography, or positron emission tomography provide additional critical diagnostic, prognostic and therapeutic information. Advanced imaging modalities also provide quantitative data that can further risk stratify patients, monitor disease progression, and guide management. In this review we provide an overview of infiltrative heart disease from an imaging perspective, with a particular focus on cardiac sarcoidosis and cardiac amyloidosis.
    MeSH term(s) Cardiomyopathies/diagnostic imaging ; Cardiomyopathies/therapy ; Humans ; Sarcoidosis/diagnostic imaging ; Sarcoidosis/therapy ; Treatment Outcome
    Language English
    Publishing date 2020-01-24
    Publishing country Italy
    Document type Journal Article ; Review
    ZDB-ID 1281687-5
    ISSN 1827-1936 ; 0392-0208 ; 1125-0135 ; 1824-4661 ; 1824-4785
    ISSN (online) 1827-1936
    ISSN 0392-0208 ; 1125-0135 ; 1824-4661 ; 1824-4785
    DOI 10.23736/S1824-4785.20.03235-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Who has advanced heart failure?: definition and epidemiology.

    Abouezzeddine, Omar F / Redfield, Margaret M

    Congestive heart failure (Greenwich, Conn.)

    2011  Volume 17, Issue 4, Page(s) 160–168

    Abstract: Summarizing current guidelines and advanced heart failure (AHF) clinical trials/registries, this review focuses on the current definition of AHF and emphasizes the secular trends in this definition over the last two decades. Further, clinical, imaging, ... ...

    Abstract Summarizing current guidelines and advanced heart failure (AHF) clinical trials/registries, this review focuses on the current definition of AHF and emphasizes the secular trends in this definition over the last two decades. Further, clinical, imaging, hemodynamic, functional capacity and biomarker parameters that may aid clinicians to better recognize patients with AHF are reviewed. Finally, we review the limited data concerning the epidemiology of AHF which to date has been poorly characterized.
    MeSH term(s) Cardiac Resynchronization Therapy ; Disease Progression ; Echocardiography, Doppler ; Heart Failure/diagnosis ; Heart Failure/epidemiology ; Heart Failure/physiopathology ; Heart Failure/therapy ; Heart-Assist Devices ; Hemodynamics ; Hospitalization/statistics & numerical data ; Humans ; Prevalence ; Prognosis ; Ventricular Dysfunction/epidemiology
    Language English
    Publishing date 2011-07-21
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Review
    ZDB-ID 1239105-0
    ISSN 1751-7133 ; 1527-5299 ; 1079-7998
    ISSN (online) 1751-7133
    ISSN 1527-5299 ; 1079-7998
    DOI 10.1111/j.1751-7133.2011.00246.x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Rituximab for the Treatment of Refractory Cardiac Sarcoidosis: A Single-Center Experience.

    Elwazir, Mohamed / Krause, Megan L / Bois, John P / Christopoulos, Georgios / Kendi, Ayse T / Cooper, Jr Leslie T / Jouni, Hayan / Abouezzeddine, Omar F / Chareonthaitawee, Panithaya / Abdelshafee, Mohamed / Amin, Shreyasee

    Journal of cardiac failure

    2021  Volume 28, Issue 2, Page(s) 247–258

    Abstract: Background: We sought to examine the effect of anti-B-cell therapy (rituximab) on cardiac inflammation and function in corticosteroid-refractory cardiac sarcoidosis. Cardiac sarcoidosis (CS) is a rare cause of cardiomyopathy characterized by ... ...

    Abstract Background: We sought to examine the effect of anti-B-cell therapy (rituximab) on cardiac inflammation and function in corticosteroid-refractory cardiac sarcoidosis. Cardiac sarcoidosis (CS) is a rare cause of cardiomyopathy characterized by granulomatous inflammation involving the myocardium. Although typically responsive to corticosteroid treatment, there is a critical need for identifying effective steroid-sparing agents for disease control. Despite increasing evidence on the role of B cells in the pathogenesis of sarcoidosis, there is limited data on the efficacy of anti-B-cell therapy, specifically rituximab, for controlling CS.
    Methods and results: We reviewed the clinical experience at a tertiary care referral center of all patients with CS who received rituximab after failing to improve with initial immunosuppression therapy, which included corticosteroids. Fluorodeoxyglucose positron emission tomography (FDG PET/CT) images before and after rituximab treatment were evaluated. All images were interpreted by 2 experienced nuclear medicine trained physicians. We identified 7 patients (5 men, 2 women; mean age at diagnosis, 49.0 ± 7.9 years) with active CS who were treated with rituximab. The median length of follow-up was 5.1 years. All individuals, but 1, had received prior steroid-sparing agents in addition to corticosteroids. Rituximab was administered either as 1000 mg intravenously ×1 or ×2 doses, separated by 2 weeks. Repeat dosing, if appropriate, was considered after 6 months. All tolerated the infusions well. Inflammation as assessed by maximum standardized uptake value on cardiac FDG PET/CT uptake significantly decreased in 6 of 7 patients (median 6.0-4.5, Wilcoxon signed rank z -1.8593, W 3), whereas the left ventricular ejection fraction improved or stabilized in 4 patients but decreased in 3. The mean left ventricular ejection fraction was 40.1% and 43.3% before and after treatment, respectively (P = .28). Three patients reported improved physical capacity, and 5 patients showed improved arrhythmic burden on Holter monitoring or implantable cardioverter-defibrillator interrogation. One patient subsequently developed a fungal catheter-associated infection and sepsis requiring discontinuation.
    Conclusions: Rituximab was well-tolerated and seemed to decrease inflammation, as assessed by cardiac FDG PET/CT in all but 1 patient with active CS. These data suggest that rituximab may be a promising therapeutic option for CS, which deserves merits further study.
    MeSH term(s) Cardiomyopathies/complications ; Female ; Fluorodeoxyglucose F18 ; Heart Failure/complications ; Humans ; Male ; Positron Emission Tomography Computed Tomography ; Positron-Emission Tomography ; Radiopharmaceuticals ; Rituximab/therapeutic use ; Sarcoidosis/drug therapy ; Stroke Volume ; Ventricular Function, Left
    Chemical Substances Radiopharmaceuticals ; Fluorodeoxyglucose F18 (0Z5B2CJX4D) ; Rituximab (4F4X42SYQ6)
    Language English
    Publishing date 2021-07-25
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1281194-4
    ISSN 1532-8414 ; 1071-9164
    ISSN (online) 1532-8414
    ISSN 1071-9164
    DOI 10.1016/j.cardfail.2021.07.008
    Database MEDical Literature Analysis and Retrieval System OnLINE

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