INTRODUCTION: It is difficult to identify the @entity1 who will respond to fluid therapy, but the arterial waveform-derived variables have reasonably predictive values for fluid responsiveness. However, the @entity1 must fulfil a number of prerequisites for these variables to be valid. We assessed the proportion of @entity1213 ( @entity1213 ) @entity1 with shock who at the time of resuscitation fulfilled the prerequisites for using the arterial waveform-derived variables. METHODS: This was a prospective cohort study performed at six ICUs. The study included consecutive adult @entity1 with shock (20 @entity1 per @entity1213 ) who received fluid resuscitation on the first day of shock. The fulfilment or not of the prerequisites (sedation, sinus rhythm and controlled ventilation with tidal volumes > 7 ml/kg) was registered at the time of the first fluid resuscitation episode and at fluid resuscitation episodes during the following days. RESULTS: A total of 119 @entity1 with a median age of 68 years (interquartile range: 56-76 years) were included. At the time of the first fluid resuscitation, 82% (95% confidence interval (CI): 74-87) of the @entity1 had sinus rhythm, 77% (95% CI: 69-84) were sedated, 55% (95% CI: 46-65) were on controlled ventilation and 50% (95% CI: 39-61) received tidal volumes of more than 7 ml/kg. Only 23% (95% CI: 14-33) of the @entity1 fulfilled all four prerequisites. CONCLUSIONS: Less than a quarter of the @entity1213 @entity1 with shock fulfilled all the prerequisites for the use of arterial waveform-derived variables to predict fluid responsiveness. Thus, these variables may be of limited use during resuscitation in the @entity1213 .

Arterial waveform-analysis is of limited value in daily clinical practice in the XXXX .

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity1213 :: ('MESH:D012555', 'Disease') :: ['intensive care unit', 'ICU']
@entity1213 :: (MESH:D012555,Disease) :: ['intensive care unit']
