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Haemodynamic Control in Fast-Track Surgery. CardioQ
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6. Corrected Flow Time (FTc) 330 – 360 milliseconds Peak Velocity (PV) 20 years 90 – 120 cm/sec 40 years 80 – 110 cm/sec 60 years 60 – 90 cm/sec 80 years 40 – 70 cm/sec FTc . Directly proportional to preload and inversely proportional to SVR PV y Mean Acceleration are markers of contractility and afterload I.V. (both decreasing with increasing afterload and vice versa) NORMAL VALUE
7. Wave of bad placement probe Heart Signal Venous signal
8. Pathological waves Hypovolaemia: FTc . PV CO . HR SV Hypovolaemia + 200 cc fluid: FTc improved. Base wave GC & VS improved Hypovolaemia + 400 cc fluid: FTc improved. Base wave