Review Article

Optimization of Preload in Severe Sepsis and Septic Shock

Table 2

Different methods of measuring CO or arterial blood flow velocity* during PLR maneuver.

InvasiveSemi-invasiveNoninvasive

ThermodilutionUSUS
PAC (transpulmonary thermodilution) *Esophageal DopplerTransthoracic echocardiography
PiCCO (aortic transpulmonary thermodilution)Transthoracic USCOM
Arterial BP waveform analysis *Femoral arterial Doppler
FloTrac VigileoBioreactance
NICOM

CO: cardiac output, PLR: passive leg raising, PAC: pulmonary artery catheter, US: ultrasound, USCOM: ultrasonic cardiac output monitor, NICOM: noninvasive cardiac output monitor.