{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,27]],"date-time":"2026-03-27T17:34:17Z","timestamp":1774632857963,"version":"3.50.1"},"reference-count":29,"publisher":"The Journal of Rheumatology","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Rheumatol"],"published-print":{"date-parts":[[2021,5]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>To use bioelectrical impedance vector analysis (BIVA) in a cohort of patients with systemic sclerosis (SSc) in order to assess their nutritional status in comparison to other groups of patients and to find any correlation with clinical characteristics and outcome of the disease.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>We retrospectively collected data from 50 SSc patients who underwent BIVA for clinical suspicion of malnutrition and compared them with patients affected by other chronic autoimmune rheumatic diseases (OCAD, n = 27) and those who were only symptomatic of malnutrition but without autoimmune features (n = 15), and with 50 healthy controls (HC).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Patients with SSc presented significantly lower values of phase angle (PhA), basal metabolic rate (BMR), and body cellular mass (BCM), and an increase in extracellular water (ECW; <jats:italic>P<\/jats:italic> &lt; 0.01 for all) than HC; instead, there were no significant differences for BMI. No significant differences were found between SSc and OCAD. Among patients with SSc, age directly correlated with ECW (\u03c1 = 0.342, <jats:italic>P<\/jats:italic> = 0.015) and inversely with PhA (\u03c1 = \u20130.366, <jats:italic>P<\/jats:italic> = 0.009). Female sex, anemia, hypoalbuminemia, reflux, and early satiety\/abdominal distension associated with relevant alterations in BIVA results. BIVA variables were significantly different when cardiopulmonary and microvascular involvement was present. Four patients died during the study: they had significantly (<jats:italic>P<\/jats:italic> \u2264 0.01) lower PhA, BMR, and BCM, with an increased ECW.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>BIVA, unlike BMI, allowed an accurate characterization of SSc patients at risk of malnutrition, correlating with serological malnutrition markers, with SSc-specific organ manifestations (cardiopulmonary involvement and microvascular damage), and with mortality. BIVA variables might represent a surrogate marker of damage accrual that leads to malnutrition, thus playing a leading role in the prognostic stratification of SSc patients.<\/jats:p><\/jats:sec>","DOI":"10.3899\/jrheum.200964","type":"journal-article","created":{"date-parts":[[2020,10,15]],"date-time":"2020-10-15T16:20:22Z","timestamp":1602778822000},"page":"728-734","source":"Crossref","is-referenced-by-count":7,"title":["Bioelectrical Impedance Vector Analysis for Nutritional Status Assessment in Systemic Sclerosis and Association With Disease Characteristics"],"prefix":"10.3899","volume":"48","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4788-5729","authenticated-orcid":false,"given":"Marco","family":"Di 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