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Relationship between weakness and phase angle in advanced cancer patients with fatigue.
MedLine Citation:
PMID:  23321933     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: This study aims to determine the relationship between weakness and bioimpedance analysis (BIA)-derived phase angle in a population of untreated cancer patients with fatigue. METHODS: We prospectively evaluated 41 treatment-naive cancer patients of several origins that presented with performance status 1-2, weight loss >5 % in the last 6 months, and Fatigue Numeral Scale score >4. Weakness was considered a physical component of the multidimensional fatigue syndrome and was evaluated through several parameters utilizing hand grip strength technique by dinamometry. The same assessment was also performed on a healthy control population (n = 20). BIA-derived phase angle was also determined by BIA. RESULTS: Compared to healthy controls, cancer patients exhibited significant differences in all the parameters: median fatigue was 6 (range 5-9), evaluated maximal strength mean was 27 ± 10.71 vs. 42 ± 10.74 kg (p < 0.0001 for patients vs. control, respectively), and muscle strength difference (max-min muscle strength) was also statistically different (p < 0.0001). We also determined parameter associations within the patient population. We found statistical significant correlations between median phase angle score and endurance muscle with percentage of weight loss (r = 0.43, p = 0.03) for head and neck cancer patients, and in non-small cell lung cancer patients, grip work correlated significantly with normal or decreased phase angle (r = 0.85), p = 0.006 (Spearman Rank Correlation). CONCLUSIONS: Weakness could be correlated with normal or decreased phase angle in a population with ambulatory advanced cancer with fatigue naive of treatment. We also found a significant relationship between median phase angle score and endurance muscle with percentage of weight loss in the subpopulation of patients with head and neck carcinoma.
Authors:
A Navigante; P Cresta Morgado; O Casbarien; N López Delgado; R Giglio; M Perman
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-16
Journal Detail:
Title:  Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer     Volume:  -     ISSN:  1433-7339     ISO Abbreviation:  Support Care Cancer     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9302957     Medline TA:  Support Care Cancer     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Translational Research Unit, Angel H. Roffo Cancer Institute, Av. San Martín 5481, Buenos Aires, Argentina, alfredonavigante@yahoo.com.ar.
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