title: Relation of tricuspid inflow E-wave peak velocity to severity of tricuspid regurgitation.
abstract: E-wave velocity in mitral flow has previously been shown to discriminate between severe and nonsevere mitral regurgitation. In this study, we sought to explore this association in the tricuspid position. The peak velocity of the tricuspid inflow E wave was measured in 118 patients (mean age 62 +/- 16.6 years; 48% women). Patients with tricuspid stenosis, transvenous pacemakers, and tricuspid prostheses were excluded. E-wave measurements were taken during shallow breathing. Tricuspid regurgitation (TR) was quantified as none or mild (group 1), moderate (group 2), or severe (group 3), according to American Society of Echocardiography guidelines. Forty-three patients had mild TR, 43 had moderate TR, and 33 had severe TR. Peak E-wave velocity was 48.6 +/- 13.8, 48.6 +/- 11.7, and 78.3 +/- 26.1 cm/s in groups 1, 2, and 3, respectively (p > 0.0001). Mean E-wave velocity was similar in groups 1 and 2 but greater in group 3 (p < 0.0001). A peak E-wave velocity of > or = 65 cm/s had a sensitivity of 73% and specificity of 88% for the detection of severe TR. In conclusion, increased peak tricuspid E-wave velocity is associated with severe TR and thus can be used as a simple measure of TR grade.
authors.affiliation: Department of Cardiology, Assaf-Harofeh Medical Center, Zerifin, and Echocardiography Unit, Israel.
authors.forename: Vladimir
authors.initials: V
authors.lastname: Danicek
authors.forename: Alexander
authors.initials: A
authors.lastname: Sagie
authors.forename: Mordehay
authors.initials: M
authors.lastname: Vaturi
authors.forename: Daniel E
authors.initials: DE
authors.lastname: Weisenberg
authors.forename: Gila
authors.initials: G
authors.lastname: Rot
authors.forename: Yaron
authors.initials: Y
authors.lastname: Shapira
mesh_terms: D001783:Blood Flow Velocity / Q000502:physiology*; D018618:Echocardiography, Doppler, Color; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D011446:Prospective Studies; D012720:Severity of Illness Index; D014261:Tricuspid Valve / Q000000981:diagnostic imaging / Q000503:physiopathology*; D014262:Tricuspid Valve Insufficiency / Q000000981:diagnostic imaging / Q000503:physiopathology*