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Evaluation of the malnutrition-inflammation score in kidney transplant recipients.
- Author(s): Molnar, Miklos Zsolt;
- Keszei, Andras;
- Czira, Maria Eszter;
- Rudas, Anna;
- Ujszaszi, Akos;
- Haromszeki, Bela;
- Kosa, Janos Pal;
- Lakatos, Peter;
- Sarvary, Eniko;
- Beko, Gabriella;
- Fornadi, Katalin;
- Kiss, Istvan;
- Remport, Adam;
- Novak, Marta;
- Kalantar-Zadeh, Kamyar;
- Kovesdy, Csaba P;
- Mucsi, Istvan
- et al.
Published Web Locationhttps://doi.org/10.1053/j.ajkd.2010.02.350
BackgroundChronic protein-energy wasting, termed malnutrition-inflammation complex syndrome, is frequent in patients with chronic kidney disease and is associated with anemia, morbidity, and mortality in patients on maintenance dialysis therapy. The Malnutrition-Inflammation Score (MIS) recently has been developed and validated in dialysis patients.
Study designObservational cross-sectional study.
Setting & participants993 prevalent kidney transplant recipients.
PredictorMIS computed from change in body weight, dietary intake, gastrointestinal symptoms, functional capacity, comorbid conditions, decreased fat store/Systemic Global Assessment, signs of muscle wasting/Systemic Global Assessment, body mass index, serum albumin level, and serum transferrin level.
OutcomesMarkers of inflammation and malnutrition, including serum C-reactive protein, interleukin 6, tumor necrosis factor alpha, serum leptin, prealbumin, body mass index, and abdominal circumference. The relationship was modeled by using structural equation models.
ResultsMean age was 51 +/- 13 years, 57% were men, and 21% had diabetes. Median time from transplant was 72 months. MIS significantly correlated with abdominal circumference (r = -0.144), serum C-reactive protein level (r = 0.094), serum interleukin 6 level (r = 0.231), and serum tumor necrosis factor alpha level (r = 0.102; P < 0.01 for all). A structural equation model with 2 latent variables (malnutrition and inflammation factor) showed good fit to the observed data.
LimitationsSingle-center study, lack of information about vascular access, presence of nonfunctioning kidney transplant, relatively high refusal rate.
ConclusionsOur results confirm that MIS reflects both energy-protein wasting and inflammation in kidney transplant recipients. This simple instrument appears to be a useful tool to assess the presence of protein-energy wasting in this patient population.
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