Purpose: Several different tools have been developed to integrate the clinical and biochemical nutritional evaluations in critical care patients. Aims of this study were to evaluate the changes in the Bioelectrical Impedance Vector Analysis (BIVA) and ultrasonographic features of the diaphragm (DTee) and rectus femoris (RFCSA) during the first week of ICU stay. Materials and methods: Ninety-six adult mechanically ventilated patients enrolled within 24 h after the admission to the ICU (T1). RFCSA and diaphragm end-expiratory thickness were measured, as well as BIVA parameters. Anthropometric data and biochemical parameters were collected. The measurements were repeated on the 3rd (T3) and 7th (T7) days of ICU stay. Results: During the study period, the phase angle significantly decreased by 21%, reactance by 27%, and resistance by 11%. Both RFCSA and DTee significantly decreased, while neither were correlated to any BIVA parameter. DTee was considerably higher in survivors vs. non-survivors. Conclusions: Body composition is significantly modified after one week of ICU stay. BIVA may be useful in the definition of hydration state, while it does not seem to track muscle mass. Different temporal trends of specific BIVA and muscle ultrasound parameters were found in patients with high or low severity of illness.

Time course of the bioelectrical impedance vector analysis and muscular ultrasound in critically ill patients / P. Formenti, S. Coppola, M. Umbrello, S. Froio, A. Cacioppola, V. De Giorgis, V. Galanti, A. Lusardi, E. Ferrari, D. Noè, S. Carnier, F. Folli, D. Chiumello. - In: JOURNAL OF CRITICAL CARE. - ISSN 0883-9441. - 68:(2022 Apr), pp. 89-95. [10.1016/j.jcrc.2021.11.014]

Time course of the bioelectrical impedance vector analysis and muscular ultrasound in critically ill patients

P. Formenti
Primo
;
S. Coppola;M. Umbrello;S. Froio;V. De Giorgis;V. Galanti;A. Lusardi;E. Ferrari;F. Folli;D. Chiumello
Ultimo
2022-04

Abstract

Purpose: Several different tools have been developed to integrate the clinical and biochemical nutritional evaluations in critical care patients. Aims of this study were to evaluate the changes in the Bioelectrical Impedance Vector Analysis (BIVA) and ultrasonographic features of the diaphragm (DTee) and rectus femoris (RFCSA) during the first week of ICU stay. Materials and methods: Ninety-six adult mechanically ventilated patients enrolled within 24 h after the admission to the ICU (T1). RFCSA and diaphragm end-expiratory thickness were measured, as well as BIVA parameters. Anthropometric data and biochemical parameters were collected. The measurements were repeated on the 3rd (T3) and 7th (T7) days of ICU stay. Results: During the study period, the phase angle significantly decreased by 21%, reactance by 27%, and resistance by 11%. Both RFCSA and DTee significantly decreased, while neither were correlated to any BIVA parameter. DTee was considerably higher in survivors vs. non-survivors. Conclusions: Body composition is significantly modified after one week of ICU stay. BIVA may be useful in the definition of hydration state, while it does not seem to track muscle mass. Different temporal trends of specific BIVA and muscle ultrasound parameters were found in patients with high or low severity of illness.
bioelectrical impedance vector analysis; phase angle; muscle ultrasound; rectus femoris; diaphragm; critical illness
Settore MED/41 - Anestesiologia
21-dic-2021
Article (author)
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/897436
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