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Original ArticleOpen Access
Relationship between Malnutrition-Inflammation Syndrome and Ultrafiltration Volume in Continuous Ambulatory Peritoneal Dialysis Patients
Tinroongroj N 
,
Jittikanont S ,
Lumlertgul D
,
Jittikanont S ,
Lumlertgul D Objective: Malnutrition inflammation syndrome may contribute to a change of peritoneum, leading to high peritoneal
membrane transport, peritoneal albumin loss, and increased glucose uptake into systemic circulation and decreased
ultrafiltration (UF) volume. Fluid overload is a common problem among CAPD patients which has an effect on morbidity and
mortality in these patients. The present study was designed as a pilot to find out a correlation between malnutrition and UF
volume in CAPD patients.
Material and Method: A cross-sectional study was comducted in 42 stable CAPD cases at CAPD clinic, Maharaj Chiang Mai
Hospital. Subjective global assessment score (SGA), malnutrition inflammation score (MIS), and laboratory values were
utilized to identify nutritional and inflammatory status. Peritoneal equilibration test (PET) was performed to measure UF
volume while bioelectrical impedance assay was determined to measure extracellular fluid volume (ECF), lean body mass
(LBM), lean fat mass, and fluid status.
Results: Of 42 CAPD patients, 30 subjects were classified to have normal nutritional status while 12 patients were categorized
to have malnutrition. Only 1 patient was classified to have malnutrition inflammation syndrome. MIS scores and serum
albumin were significantly different between 2 groups (p < 0.001). PET-UF volume was significantly decreased in the
malnutrition group (p < 0.05), especially when serum albumin was less than 3.0 g/dl. PET-UF volume was reduced 137.44
ml for every 1 g/dl of serum albumin below 3.0 g/dl. Residual renal function (RRF) was also significantly reduced in
malnutrition group (p < 0.05). Malnutrition, decreased RRF, and decreased UF volume led to ECF expansion, hypertension,
and fluid overload. Other factors that were correlated with UF volume were ACEI and/or ARB use (p < 0.05) and total protein
loss per day (p < 0.05).
Conclusion: There was a significantly positive correlation between malnutrition and reduction of UF volume. Other factors
that were correlated with UF volume were ACEI and/or ARBS use and total protein loss per day.
Keywords: Continuous ambulatory peritoneal dialysis, Malnutrition- inflammation syndrome, Ultrafiltration volume
membrane transport, peritoneal albumin loss, and increased glucose uptake into systemic circulation and decreased
ultrafiltration (UF) volume. Fluid overload is a common problem among CAPD patients which has an effect on morbidity and
mortality in these patients. The present study was designed as a pilot to find out a correlation between malnutrition and UF
volume in CAPD patients.
Material and Method: A cross-sectional study was comducted in 42 stable CAPD cases at CAPD clinic, Maharaj Chiang Mai
Hospital. Subjective global assessment score (SGA), malnutrition inflammation score (MIS), and laboratory values were
utilized to identify nutritional and inflammatory status. Peritoneal equilibration test (PET) was performed to measure UF
volume while bioelectrical impedance assay was determined to measure extracellular fluid volume (ECF), lean body mass
(LBM), lean fat mass, and fluid status.
Results: Of 42 CAPD patients, 30 subjects were classified to have normal nutritional status while 12 patients were categorized
to have malnutrition. Only 1 patient was classified to have malnutrition inflammation syndrome. MIS scores and serum
albumin were significantly different between 2 groups (p < 0.001). PET-UF volume was significantly decreased in the
malnutrition group (p < 0.05), especially when serum albumin was less than 3.0 g/dl. PET-UF volume was reduced 137.44
ml for every 1 g/dl of serum albumin below 3.0 g/dl. Residual renal function (RRF) was also significantly reduced in
malnutrition group (p < 0.05). Malnutrition, decreased RRF, and decreased UF volume led to ECF expansion, hypertension,
and fluid overload. Other factors that were correlated with UF volume were ACEI and/or ARB use (p < 0.05) and total protein
loss per day (p < 0.05).
Conclusion: There was a significantly positive correlation between malnutrition and reduction of UF volume. Other factors
that were correlated with UF volume were ACEI and/or ARBS use and total protein loss per day.
Keywords: Continuous ambulatory peritoneal dialysis, Malnutrition- inflammation syndrome, Ultrafiltration volume
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