Title: 2015 ACVIM Forum Research Abstract Program Document date: 2015_5_27
ID: 3pnuj5ru_23
Snippet: Six healthy Beagles were anesthetized and intubated. A Swan-Ganz catheter was placed to measure mean pulmonary capillary wedge pressure (mPCWP). Preload was increased by intravenous infusion of lactated Ringer's solution at 150 ml/kg/h for 90 minutes. Transthoracic echocardiography was performed before (0 minute) and at 15, 30, 45, 60, 75 , and 90 minutes after starting infusion. At each timepoint the apical four-chamber images were recorded and .....
Document: Six healthy Beagles were anesthetized and intubated. A Swan-Ganz catheter was placed to measure mean pulmonary capillary wedge pressure (mPCWP). Preload was increased by intravenous infusion of lactated Ringer's solution at 150 ml/kg/h for 90 minutes. Transthoracic echocardiography was performed before (0 minute) and at 15, 30, 45, 60, 75 , and 90 minutes after starting infusion. At each timepoint the apical four-chamber images were recorded and analysed with software based on two-dimensional speckle tracking echocardiography to derive time-left atrial area curves. Left atrial total, passive, and active fractional area changes as indicators of reservoir, conduit, and booster pump functions, respectively, were calculated from left atrial phasic areas in the curves.
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