Abstract
While using a transcutaneous system for assessment of liver function by indocyanine green plasma disappearance rate (ICG-PDR) in critically ill patients, we compared the agreement between ICG-PDR obtained by the recommended standard ICG dosage (0.5 mg/kg) and a reduced dosage (0.25 mg/kg). Clinical study. Intensive care unit of a university hospital. Critically ill patients (n=16, 5 female, 11 male) who underwent liver function monitoring by ICG-PDR for clinical indication. We analyzed 31 pairs of ICG-PDR measurements by applying the recommended dosage (0.5 mg/kg, ICG-PDR0.5) and a reduced dosage (0.25 mg/kg, ICG-PDR0.25). For each comparative measurement either first 0.5 mg/kg or 0.25 mg/kg of ICG was injected in a random fashion and followed by the corresponding dosage 60 min later. All patients were sedated and mechanically ventilated via a tracheal tube. Each patient was monitored by an ICG finger clip which was connected to a liver function monitoring system (LiMon, Pulsion Medical Systems, Germany). ICG-PDR0.25 was 2.7–25.0 %/min and ICG-PDR0.5 4.5–24.5 %/min, respectively. Linear regression analysis revealed ICG-PDR0.25=1.13·ICG-PDR0.5−0.66 %/min (r=0.95, p<0.0001) with a mean bias 1.0 %/min (standard deviation 2.5 %/min). The 15 min residual rates were also highly correlated (r=0.92, p<0.0001) with a mean bias of 0.3%. A reduced dosage of ICG (0.25 mg/kg) is sufficiently accurate for transcutaneous measurement of ICG-PDR in critically ill patients.
Highlights
In contrast to conventional surgical tracheostomy, percutaneous dilational tracheostomy (PDT) in different variants is spreading rapidly in intensive care units today
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Summary
In contrast to conventional surgical tracheostomy, percutaneous dilational tracheostomy (PDT) in different variants is spreading rapidly in intensive care units today. The objectives of the current study were (1) to assess the prognostic significance of plasma concentrations of NSE for early prediction of outcome in patients at risk for anoxic encephalopathy after cardiopulmonary resuscitation (CPR), and (2) to compare the prognostic information provided by NSE measurements with that provided by conventional risk indicators (clinical neurological examination and computerised tomography [CT] scan of the brain). Independent pulmonary ventilation was introduced in the 1930s and allows the utilization of different ventilatory strategies for each lung to improve gas exchange, respiratory mechanics or both in patients with heterogeneous lung diseases It is not clear whether the lower inflection point (LIP) on the inspiratory limb or the point of maximum curvature (PMC) on the deflation limb of the pressure–volume (PV) curve should be used for the positive end-expiratory pressure (PEEP) setting in acute lung injury (ALI). The long-term outcome, health-related quality of life (HRQL), and ICU and hospital costs of medical ICU patients were assessed
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