Magnitude of left atrial V wave is the determinant of exercise capacity in patients with mitral stenosis.
A large left atrial (LA) V wave can be observed in patients with pure mitral stenosis (MS) due to decreased LA compliance. Based on the hypothesis that exercise capacity may correlate with the magnitude of the LA V wave in patients with MS, symptom-limited exercise testing and right and left heart catheterization were performed in 28 patients. The results show that the magnitude of the LA V wave (p = 0.02) was the strongest predictor of the exercise duration, suggesting that LA compliance may be an important contributing factor in determination of exercise capacity in patients with MS.
Park
Sungha
S
Cardiology Division, Yonsei Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, South Korea.
Ha
Jong-Won
JW
Ko
Young-Guk
YG
Kim
Jongyoun
J
Kang
Seok-Min
SM
Rim
Se-Joong
SJ
Jang
Yangsoo
Y
Chung
Namsik
N
Shim
Won-Heum
WH
Cho
Seung-Yun
SY
Kim
Sung-Soon
SS
D000328:Adult; D000368:Aged; D016279:Atrial Function, Left / Q000502:physiology*; D017079:Exercise Tolerance / Q000502:physiology*; D005260:Female; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008875:Middle Aged; D008946:Mitral Valve Stenosis / Q000503:physiopathology*