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Standardized phase angle: relationship with functionality, muscle mass and postoperative outcomes in surgical cancer patients. | LitMetric

Standardized phase angle: relationship with functionality, muscle mass and postoperative outcomes in surgical cancer patients.

Med Oncol

Programa de Pós-Graduação em Nutrição e Alimentos, Universidade Federal de Pelotas, Rua Gomes Carneiro, 01, Pelotas, RS, 96010-610, Brazil.

Published: May 2024

AI Article Synopsis

Article Abstract

To evaluate the association of standardized phase angle (SPA) with nutritional status, functional parameters, and postoperative outcomes in surgical cancer patients. This prospective study includes 59 cancer patients from Pelotas (Brazil) admitted for elective cancer surgery. We obtained the phase angle through Bioelectrical Impedance Analysis (BIA) and standardized it according to the population's reference values. We estimated the muscle mass using BIA for later calculation of the Skeletal Muscle Index (SMI) and performed handgrip strength (HGS) and gait speed (GS) tests. We used the Patient-Generated Subjective Global Assessment (PG-SGA) to assess the nutritional status. Postoperative complications and duration of hospital stay were evaluated as the outcomes. The prevalence of malnutrition in the sample was 28.8%, according to ASG-PPP. SPA was statistically lower in patients with malnutrition, with lower HGS and reduced GS. For postoperative outcomes, patients with severe complications and those with prolonged hospitalization also had lower SPA values. The greater the number of functional alterations in patients, the lower the SPA value, mainly when associated with reduced muscle mass assessed by BIA, suggesting that muscle mass reduction plays an important role in the association between functional alterations and phase angle in patients with cancer. According to the parameters used in this study, low SPA value was associated with impaired nutritional and functional status and negative outcomes in the analyzed sample.

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Source
http://dx.doi.org/10.1007/s12032-024-02367-9DOI Listing

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