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Darlington AM, Rodriguez Ziccardi MC, Konda S, Gonzalez-Gonzalez FJ, Nazir NT, McCauley MD. Left atrial echocardiographic parameters predict the onset of atrial fibrillation: the SMASH2 scoring system. J Interv Card Electrophysiol 2022; 65:179-182. [PMID: 35579783 PMCID: PMC9561957 DOI: 10.1007/s10840-022-01243-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 05/04/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND As AF-associated morbidity and mortality are increasing, there is an acute need for improved surveillance and prevention strategies to reduce the impact of AF and related strokes. Specific echocardiographic parameters that can best predict future onset of AF within 3 months are lacking. METHODS Twenty patients with AF, as identified by presence of ICD-9 diagnosis code, were compared with a control group of twenty age- and sex-matched patients selected from the same clinic population but without a diagnosis of AF. Transthoracic echocardiograms (TTE) obtained within 90 days prior to first documented AF episode (study group) or obtained closest to first clinic visit (control) were selected for review. RESULTS Baseline characteristics, including age, BMI, presence of hypertension, hyperlipidemia, diabetes, and heart failure were comparable. Increased left atrial (LA) size (end systolic major axis in 2-chamber view: AF 4.62±0.03 vs control 3.79±0.21, P =0.03), increased mitral inflow (E/A ratio: AF 1.35±0.15 vs control 1.06±0.07, P =0.04), and reduced LA global longitudinal strain (AF -2.69±0.26 vs control - 3.59±0.31, P =0.04) were most closely associated with AF compared with the control group. Multivariate logistic regression was used to develop predictive models for AF onset. A combination of imaging and traditional clinical risk factors was the best AF prediction model with AUC of 0.94, which greatly exceeds the current best predictors published. From these parameters, we developed the SMASH2 scoring system for 90- day AF risk estimation. CONCLUSIONS Risk factors for AF and early features of atrial cardiomyopathy including male sex, hypertension, LA enlargement, reduced mitral inflow, and reduced LA strain are powerful predictors of AF onset within 90 days, and may be used to prognosticate future AF risk.
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Affiliation(s)
- Ashley M Darlington
- Department of Medicine, Division of Cardiology, College of Medicine, University of Illinois at Chicago, 840 S. Wood St., 920S (MC 715), Chicago, IL, 60612, USA
| | - Mary C Rodriguez Ziccardi
- Department of Medicine, Division of Cardiology, College of Medicine, University of Illinois at Chicago, 840 S. Wood St., 920S (MC 715), Chicago, IL, 60612, USA
| | - Sreenivas Konda
- Department of Medicine, Division of Cardiology, College of Medicine, University of Illinois at Chicago, 840 S. Wood St., 920S (MC 715), Chicago, IL, 60612, USA
| | - Francisco J Gonzalez-Gonzalez
- Department of Medicine, Division of Cardiology, College of Medicine, University of Illinois at Chicago, 840 S. Wood St., 920S (MC 715), Chicago, IL, 60612, USA
- Department of Physiology and Biophysics and the Center for Cardiovascular Research, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Noreen T Nazir
- Department of Medicine, Division of Cardiology, College of Medicine, University of Illinois at Chicago, 840 S. Wood St., 920S (MC 715), Chicago, IL, 60612, USA.
- Jesse Brown VA Medical Center, Chicago, IL, USA.
| | - Mark D McCauley
- Department of Medicine, Division of Cardiology, College of Medicine, University of Illinois at Chicago, 840 S. Wood St., 920S (MC 715), Chicago, IL, 60612, USA.
- Department of Physiology and Biophysics and the Center for Cardiovascular Research, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA.
- Jesse Brown VA Medical Center, Chicago, IL, USA.
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Sirinvaravong N, Rodriguez Ziccardi MC, Patnaik S, Shah M, Fernandez G, Aliling JN, Rubin A. Nonbacterial thrombotic endocarditis in a patient with primary antiphospholipid syndrome. Oxf Med Case Reports 2018; 2018:omy024. [PMID: 29977578 PMCID: PMC6016692 DOI: 10.1093/omcr/omy024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 03/09/2018] [Accepted: 04/16/2018] [Indexed: 11/24/2022] Open
Abstract
Nonbacterial thrombotic endocarditis (NBTE) is described in patients with mucin-producing cancers and connective tissue disorders (usually SLE). We report NBTE in the setting of primary antiphospholipid antibody syndrome (APS). A 65-year-old female with APS was incidentally found to have thickened mitral leaflets on transthoracic echocardiogram with no signs of infection. Transesophageal echocardiogram (TEE) showed a mobile mitral mass (1.4 × 0.7 cm) and moderate mitral regurgitation. Differential diagnoses included bacterial endocarditis, NBTE, thrombus or tumor. Given the history of primary APS, the absence of fever and negative blood cultures, NBTE was considered. Low-molecular-weight heparin, hydroxychloroquine and corticosteroid were initiated. Repeat TEE in a week revealed shrinkage of the mass (0.6 × 0.7 cm), indicating an inflammatory nature. Lifelong anticoagulation is indicated regardless of embolism occurrence. Hydroxychloroquine and corticosteroids may have roles in the treatment. Determining and treating the underlying etiology is important.
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Affiliation(s)
| | | | - Soumya Patnaik
- Division of Cardiology, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Mahek Shah
- Division of Cardiology, Lehigh Valley Healthcare Network, Allentown, PA, USA
| | - Gustavo Fernandez
- Division of Pulmonology, Temple University Hospital, Philadelphia, PA, USA
| | | | - Alexander Rubin
- Division of Cardiology, Pennsylvania Heart and Vascular Group, Jenkintown, Philadelphia PA, USA
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