Quantitative assessment of effective regurgitant orifice: impact on risk stratification, and cut-off for severe and torrential tricuspid regurgitation grade

Autor: Ido Nachmany, Aviram Hochstadt, Chen Sherez, Gad Keren, Simon Biner, Galit Aviram, Yan Topilsky, Nir Flint, Guy Topaz, Yogev Peri, Ben Sadeh, Meirav Ingbir
Rok vydání: 2019
Předmět:
Zdroj: European Heart Journal - Cardiovascular Imaging. 21:768-776
ISSN: 2047-2412
2047-2404
DOI: 10.1093/ehjci/jez267
Popis: Aims Asses the added value of quantitative evaluation of tricuspid regurgitation (TR), the proper cut-off value for severe TR and ‘torrential TR’ based on outcome data. The added value of quantitative evaluation of TR, and the cut-off values associated with increased mortality are unknown. Methods and results In patients with all-cause TR assessed both qualitatively and quantitatively by proximal iso-velocity surface area method, long-term and 1-year outcome analysis was conducted. Thresholds for excess mortality were assessed using spline curves, receiver-operating characteristic curves, and minimum P-value analysis. The study involved 676 patients with all-cause TR (age 73.9 ± 14 years, male 45%, ejection fraction 52.9 ± 14%). Effective regurgitant orifice (ERO) was strongly associated with decreased survival in unadjusted [hazard ratio (HR) 2.38 (1.79–3.01), P Conclusion TR can be severe and even ‘torrential’ and is associated with excess mortality. Quantitative assessment of TR by ERO measurement is a powerful independent predictor of outcome, superior to standard qualitative assessment. The optimal cut-off above which mortality is increased is 0.35 cm2, similar albeit slightly lower than suggested in recent guidelines. Torrential TR >0.7 cm2 is associated with poorer survival compared to patients with severe TR (ERO > 0.4 cm2 and
Databáze: OpenAIRE