Citrin B S, Mensah G A, Byrd B F
Vanderbilt University Medical Center, Vanderbilt University Hospital, Nashville, Tennessee 37232, USA.
Am J Cardiol. 1995 Oct 1;76(10):730-3. doi: 10.1016/s0002-9149(99)80211-2.
In older cardiac patients, elevated left-sided heart filling pressures are predicted by both a systolic PV flow fraction < 40% and a greater duration during atrial systole of reversal flow into the PVs than forward flow through the mitral valve. However, this study shows that these Doppler findings are not uncommon in younger subjects without cardiac disease. Use of these PV Doppler flow parameters to assess LV filling pressures should be limited to older patients.
在老年心脏病患者中，收缩期肺静脉血流分数<40%以及心房收缩期肺静脉内逆向血流持续时间长于二尖瓣正向血流持续时间均提示左心充盈压升高。然而，本研究表明，这些多普勒表现在无心脏病的年轻受试者中也并不少见。使用这些肺静脉多普勒血流参数评估左心室充盈压应仅限于老年患者。
