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Tissue‐Tracking Mitral Annular Displacement in Neonates: A Novel Index of Left Ventricular Systolic Function.

Tissue‐Tracking Mitral Annular Displacement in Neonates: A Novel Index of Left Ventricular Systolic Function.

Authors :
Ficial, Benjamim
Benfari, Giovanni
Bonafiglia, Elena
Clemente, Maria
Cappelleri, Alessia
Flore, Alice Iride
Petoello, Enrico
Ciarcià, Martina
Nogara, Silvia
Milocchi, Carlotta
Dani, Carlo
Ribichini, Flavio Luciano
Gottin, Leonardo
Corsini, Iuri
Source :
Journal of Ultrasound in Medicine; Apr2024, Vol. 43 Issue 4, p729-739, 11p
Publication Year :
2024

Abstract

Objectives: To assess the feasibility, accuracy, and reproducibility of tissue‐tracking mitral annular displacement (TMAD) compared with other measures of left ventricular systolic function in healthy preterm and term neonates in the transitional period. Methods: This was a prospective observational study. Two echocardiograms were performed at 24 and 48 hours of life. TMAD, shortening fraction (SF), ejection fraction (EF), s′, and global longitudinal strain (GLS) were measured offline. Accuracy to detect impaired GLS was tested by ROC curve analysis. DeLong test was used to compare AUCs. Intra and interobserver reproducibility of the off‐line analysis was calculated. Results: Mean ± SD gestational age and weight were 34.2 ± 3.8 weeks and 2162 ± 833 g, respectively. TMAD was feasible in 168/180 scans (93%). At 24 hours the AUC (95% CI) of SF, EF, s′, and TMAD (%) was 0.51 (0.36–0.67), 0.68 (0.54–0.82), 0.63 (0.49–0.77), and 0.89 (0.79–0.99) respectively. At 48 hours the AUC (95% CI) of SF, EF, s′, and TMAD (%) was 0.64 (0.51–0.77), 0.59 (0.37–0.80), 0.70 (0.54–0.86), and 0.96 (0.91–1.00), respectively. The AUC of TMAD was superior to the AUC of SF, EF, s′, at both timepoints (P <.02). Intraclass correlation coefficients (95% CI) of intra and interobserver reproducibility of TMAD were 0.97 (0.95–0.99) and 0.94 (0.88–0.97), respectively. Conclusion: TMAD showed improved accuracy and optimal reproducibility in neonates in the first 48 hours of life. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
02784297
Volume :
43
Issue :
4
Database :
Complementary Index
Journal :
Journal of Ultrasound in Medicine
Publication Type :
Academic Journal
Accession number :
176105272
Full Text :
https://doi.org/10.1002/jum.16399