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Borrelli, N S; Di Salvo, G; Sabatino, J; Avesani, M; Filippini, E; Karagodova, E; Spada, M; Josen, M; Fraisse, A
European heart journal cardiovascular imaging, 01/2020, Letnik: 21, Številka: Supplement_1Journal Article
Abstract Funding Acknowledgements EACVI Training Grant Introduction Kawasaki disease (KD) is an acute vasculitis of unknown etiology. It is associated with high morbidity and mortality due to the development of coronary artery aneurysms and myocardial dysfunction. Purpose The aim of this study was to evaluate sensitivity and specificity of left ventricular (LV) pressure–strain loop (PSL) area, which reflects regional myocardial work and metabolic demand, in predicting subtle myocardial abnormalities in KD patients with coronaries aneurisms. Methods A total of 88 patients (59 male, age 8.95 ± 4.95 years) were included in our study. Among the children admitted in our institution with a diagnosis of KD during the study time frame, 42 patients (KDg) (29 male) with coronary artery dilatation (Z-score >2.5) were selected. These cases were compared with 46 (30 male) age-matched controls (CTRg). Classical echocardiographic parameters of LV systolic function were normal in both groups, while global longitudinal strain (GLS) was decreased in 6 KD patients. Global work index (GWI) was calculated as the area of the LV PSL. From GWI, it was estimated also Global Constructive Work (GCW), Global Wasted Work (GWW) and Global Work Efficiency (GWE). We also made a subgroup analysis between KD patients with normal GLS (> -19 %) and control patients. Results Despite normal LV systolic function by routine echocardiography, compared to controls, KD patients had lower GWI (1448 ± 382 mmHg% in KDg vs 1751 ± 263 mmHg% in CTRg, p = 0.00003), GCW (1904 ± 390 mmHg% in KDg vs 2174 ± 292 mmHg% in CTRg, p= 0.0004) and GWE (94 ± 5 % in KDg vs 96 ± 2 % in CTRg, p= 0.01). There was not significant difference in GWW between the KDg and CTRg. When KD patients with normal GLS were analysed separately, they preserved a significant difference in GWI, GCW and GWE in comparison with controls (GWI: 1490 ± 347 mmHg% in KDg vs 1751 ± 263 mmHg% in CTRg, p = 0.0002; GCW: 1972 ± 321 mmHg% in KDg vs 2174 ± 292 mmHg% in CTRg, p = 0.004; GWE: 95 ± 3 in KDg vs 96 ± 2 % in CTRg, p= 0.04). No association was found between GWI, GCW, GWW, GWE and number or dimension of the involved aneurysmatic coronaries. Conclusions The estimation of myocardial work by PSL is a novel tool for the evaluation of patients with KD. GWI, GCW and GWE were significantly reduced in KD patients with dilated coronaries. In KD patients with normal GLS, estimation of GWI, GCW and GWE may be a sensitive indicator of myocardial dysfunction and an adjuvant criterion to avoid delayed diagnosis of KD. Abstract P316 Figure. Myocardial work in KD and CTR.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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