Continuous cardiac output monitoring via arterial pressure waveform analysis following severe hemorrhagic shock in dogs*

Abstract

PulseCO determination of cardiac output does not accurately predict rapid decreases in cardiac output or the effects of fluid resuscitation in dogs. Recalibration of PulseCO may be necessary after any apparent or suspected decrease in cardiac preload, afterload, or contractility.

Validation of cardiac output measurement with the LiDCOTM pulse contour system in patients with impaired left ventricular function after cardiac surgery*

“…These data has subsequently been confirmed by Costa et al in patients after liver transplantation [11]. In contrast, Cooper and Muir observed a much worse correlation with a huge percentage error (r = )0.45, 98%) between lithium dilution and LiDCO during severe haemorrhagic shock and after fluid resuscitation in dogs [21]. Their results showed a wide range of limits of agreement and they concluded that LiDCO did not accurately predict rapid decreases in cardiac output or the effects of fluid resuscitation in dogs.…”

The effect of anaesthesia and aortic clamping on cardiac output measurement using arterial pulse power analysis during aortic aneurysm repair*

“…It was this latter pattern of change that we observed with epidural and general anaesthesia. In studies looking at haemodynamic instability secondary to haemorrhage, the LiDCOplus system appears to overestimate cardiac output [17]. We observed this pattern on aortic clamping.…”

Inter-device differences in monitoring for goal-directed fluid therapy

“…The majority of experimental [59][60][61] and clinical [62][63][64][65] data suggests that calibration of arterial waveform analyzers improves accuracy, although this finding is not universal. 64,[66][67][68] The accuracy of these devices generally decreases during periods of hemodynamic instability; 59,60,64,[69][70][71] thus, there appears to be a tradeoff between convenience and reliability, especially in situations in which loading conditions are expected to change.…”

“…64,[66][67][68] The accuracy of these devices generally decreases during periods of hemodynamic instability; 59,60,64,[69][70][71] thus, there appears to be a tradeoff between convenience and reliability, especially in situations in which loading conditions are expected to change.…”