Assessing the situation of volume in the patients with major thoracic operations by bioimpedance spectrum analysis
Objective To evaluate the change of the postoperative fluid distribution in patients with major thoracic operations by whole-body bioimpedance spectroscopy. Methods A total of 34 patients received major thoracic operations in ICU of the Third Hospital of Peking University from the January 2009 to December 2010 were divided into two groups according to whether or not hypotension (the systolic pressure were lower than 90 mm Hg) occured within the 24 hours after operations. Intracellular water (1CW (and extracellular water (ECW) were measured by whole-body multiple-frequency bioimpedance spectroseopy (Xitron Technologies,San Diego,CA,USA) when the patients were admitted in the ICU. The base excess (BE), Lactic acid (LAC) ,the mean arterial pressure (MAF)and central venous pressure (CVP) were also measured on the same time. These variables were analyzed by t test for continuous variables. Results The hypotension occurred in 11 patients within 24 hours after operations. The average ECW measured when the patients were admitted in ICU in hypotensive group is lower than that in normal blood pressure group (P<0. 05). The average ECW,BE,LAC,MAP and CVP are no difference between the hypotensive group and normal blood pressure group (P>0. 05).Conclusions Measuring the ECW by bioimpedance spectrum a-nalysis can indicate the absence of volume in the patients with major thoracic operations in the early stage.
Electric ImpedanceThoracic Surgical ProceduresBody Fluid Compartments
NETL
NSTL
万方数据
维普
