Transpulmonary thermodilution assessments: precise measurements require a precise procedure

Transpulmonary thermodilution assessments: precise measurements require a precise procedure

When incorporating the values of a hemodynamic parameter into the care of patients, the precision of the measurement method should always be considered. A prospective analysis in the previous issue of Critical Care showed that the precision of transpulmonary thermodilution (TPTD) allows for reliable mean values if a standardised procedure is used. The present finding has a physiological basis, ...

Precision of the transpulmonary thermodilution measurements

INTRODUCTION We wanted to determine the number of cold bolus injections that are necessary for achieving an acceptable level of precision for measuring cardiac index (CI), indexed global end-diastolic volume (GEDVi) and indexed extravascular lung water (EVLWi) by transpulmonary thermodilution. METHODS We included 91 hemodynamically stable patients (age 59 (25% to 75% interquartile range: 39 t...

Transpulmonary thermodilution for hemodynamic measurements in severely burned children

INTRODUCTION Monitoring of hemodynamic and volumetric parameters after severe burns is of critical importance. Pulmonary artery catheters, however, have been associated with many risks. Our aim was to show the feasibility of continuous monitoring with minimally invasive transpulmonary thermodilution (TPTD) in severely burned pediatric patients. METHODS This prospective cohort study was conduc...

Interpretation of transpulmonary thermodilution curves.

A Precise and Rapid Analytical Procedure For

Perez, F.F. and Fraga, F., 1987. A precise and rapid analytical procedure for alkalinity determination. Mar. Chem., 21: 169-182. A potentiometric analytical method is proposed for the determination of the alkalinity of seawater. The precision is 0.1% and each determination takes 3 min. The technique is very easy to use, even on board ship since it is carried out in open flasks. A polynomial equ...