Journal article
Segmental bioelectrical impedance analysis to assess perioperative fluid changes.
- Bracco D Surgical Intensive Care Unit, University Hospital, Lausanne, Switzerland.
- Berger MM
- Revelly JP
- Schütz Y
- Frascarolo P
- Chioléro R
- 2000-08-02
Published in:
- Critical care medicine. - 2000
Abdomen
Aged
Body Composition
Brain
Electric Impedance
Female
Humans
Intraoperative Period
Male
Middle Aged
Postoperative Period
Prospective Studies
Thorax
Water-Electrolyte Balance
English
OBJECTIVES
Perioperative fluid accumulation determination is a challenge for the clinician. Bioelectrical impedance analysis (BIA) is a noninvasive method based on the electrical properties of tissues, which can assess body fluid compartments. The study aimed at assessing their changes in three types of surgery (thoracic, abdominal, and intracranial) requiring various regimens of fluid administration.
DESIGN
Prospective descriptive trial.
PATIENTS
A total of 26 patients scheduled for elective surgery were separated into three groups according to site of surgery: thoracic (n = 8), abdominal aortic (n = 8), and brain surgery (n = 10).
SETTING
University teaching hospital.
INTERVENTION
None.
MEASUREMENTS
Whole body, segmental (arm, trunk, and legs) BIA at multiple frequency (0.5, 50, 100 kHz) was used to assess perioperative fluid accumulation after surgery. The fluid balances were calculated from the charts.
RESULTS
The patients were aged 62+/-4 yrs. Fluid balances were 4.8+/-1.0 L, 4.1+/-0.5 L, and 1.9+/-0.3 L, respectively, in the three groups. In trunk surgery patients, fluid accumulation was detected as a drop in impedance in the operated area at all frequencies. In the operated area, there was an expansion of both intra- and extracellular compartments. A reduction in high frequencies' impedance in the legs was only detected after aortic surgery. Fluid accumulation and trunk impedance changes were strongly correlated. Neurosurgery only induced minor body fluid changes.
CONCLUSIONS
Segmental BIA is able to detect and localize perioperative fluid accumulation. It may become a bedside tool to quantify and to localize fluid accumulation.
Perioperative fluid accumulation determination is a challenge for the clinician. Bioelectrical impedance analysis (BIA) is a noninvasive method based on the electrical properties of tissues, which can assess body fluid compartments. The study aimed at assessing their changes in three types of surgery (thoracic, abdominal, and intracranial) requiring various regimens of fluid administration.
DESIGN
Prospective descriptive trial.
PATIENTS
A total of 26 patients scheduled for elective surgery were separated into three groups according to site of surgery: thoracic (n = 8), abdominal aortic (n = 8), and brain surgery (n = 10).
SETTING
University teaching hospital.
INTERVENTION
None.
MEASUREMENTS
Whole body, segmental (arm, trunk, and legs) BIA at multiple frequency (0.5, 50, 100 kHz) was used to assess perioperative fluid accumulation after surgery. The fluid balances were calculated from the charts.
RESULTS
The patients were aged 62+/-4 yrs. Fluid balances were 4.8+/-1.0 L, 4.1+/-0.5 L, and 1.9+/-0.3 L, respectively, in the three groups. In trunk surgery patients, fluid accumulation was detected as a drop in impedance in the operated area at all frequencies. In the operated area, there was an expansion of both intra- and extracellular compartments. A reduction in high frequencies' impedance in the legs was only detected after aortic surgery. Fluid accumulation and trunk impedance changes were strongly correlated. Neurosurgery only induced minor body fluid changes.
CONCLUSIONS
Segmental BIA is able to detect and localize perioperative fluid accumulation. It may become a bedside tool to quantify and to localize fluid accumulation.
- Language
-
- English
- Open access status
- closed
- Identifiers
-
- DOI 10.1097/00003246-200007000-00034
- PMID 10921569
- Persistent URL
- https://sonar.ch/global/documents/139115
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