Incident hyperglycemia, parenteral nutrition administration and adverse outcomes in patients with myeloma admitted for initial auto-SCT.

Parenteral nutrition (PN) exacerbates hyperglycemia, which is associated with increased morbidity and mortality in various cancer populations. By using a retrospective design, we examined incident hyperglycemia in PN and non-PN recipients and the associations with clinical events and 5-year survival in a cohort treated for myeloma with melphalan and auto-SCT (n=112). Clinical comparisons were made at admission, and 'before' and 'after' initiating PN to discern differences and temporality. Actual infusion times were used for PN patients; time frames based on mean PN infusion days were created for the non-PN recipients. Oral intake was lower 'before' in PN vs non-PN patients (P<0.001); however, no differences in mucositis, emesis, infections or transfusions were detected 'before.' Incident hyperglycemia (≥7.0 mmol/L) was significant 'after' PN initiation, and PN recipients experienced delays in WBC (P<0.05) and platelet engraftment (P=0.009), and required significantly greater RBC (P=0.0014) and platelet (P=0.001) support 'after' than non-PN patients. Neutropenic fever and longer hospital stay were more frequent among PN vs non-PN recipients (P<0.001). Differences in 5-year mortality were not apparent. The findings fail to support clinical benefits of PN administration during auto-SCT for myeloma. Further study is needed to discern if hyperglycemia or feeding per se was deleterious in this patient population.

Nutrition assessment: the reproducibility of subjective global assessment in patients requiring mechanical ventilation.

BACKGROUND/OBJECTIVES: The detection of malnutrition in the intensive care unit (ICU) is critical to appropriately address its contribution on outcomes. The primary objective of this investigation was to determine if nutritional status could be reliably classified using subjective global assessment (SGA) in mechanically ventilated (MV) patients. SUBJECTS/METHODS: Fifty-seven patients requiring MV >48 h in a university-affiliated medical ICU were evaluated in this cross-sectional study over a 3-month period. Nutritional status was categorized independently by two registered dietitians using SGA. Frequencies, means (+ s.d.), χ (2) and t-tests were used to describe the population characteristics; agreement between raters was evaluated using the κ statistic. RESULTS: On admission, the average patient was 50.4 (±14.2) years of age, overweight (body mass index: 29.0±9.2kg/m(2)), had an acute physiology and chronic health evaluation II score of 24 (±10) and respiratory failure. Fifty percent (n=29) of patients were categorized as malnourished. Agreement between raters was 95% before consensus, reflecting near perfect agreement (κ=0.90) and excellent reliability. Patients categorized as malnourished were more often admitted to the hospital floor before the ICU (n=32; 56%), reported decreased dietary intake (69 vs 46%, P=0.02) and exhibited signs of muscle wasting (45 vs 7%, P<0.001, respectively) and fat loss (52 vs 7%, P<0.001, respectively) on physical exam when compared with normally nourished individuals. CONCLUSIONS: SGA can serve as a reliable nutrition assessment technique for detecting malnutrition in patients requiring MV. Its routine use should be incorporated into future studies and clinical practice.

Creating a clinical nutrition registry: prospects, problems, and preliminary results.

There is a tremendous gap in the information available to support the practice of hospital-based dietitians and to address the issue of how the risk of developing protein-energy malnutrition can be avoided in the majority of patients. This article describes the rationale and benefits of creating a nutrition registry of within-hospital clinical nutrition care. A nutrition registry is made up of observational data, collected on an ongoing basis, of nutritional interventions provided to hospitalized patients. It is the first step in data gathering to demonstrate the effectiveness of clinical nutrition interventions. The methods and preliminary results of a nutrition registry that was established at The University of Illinois Medical Center, Chicago, III, are presented. Using subjective global assessment, 55% (257 of 467) of patients at admission and 60% (280 of 467) of patients at discharge were moderately or severely malnourished. Patients that were normal nourished at admission and became moderately or severely malnourished had higher hospital charges ($40,329 for moderately malnourished patients, $76,598 for severely malnourished patients) than those that remained normal nourished ($28,368). This pattern held independent of admission nutritional status. Major challenges in implementation of a registry into the responsibilities of the staff dietitian are reviewed. The conclusion of this study is that nutrition registries can be established and will provide the much needed baseline data to document the impact of nutrition interventions on outcomes of medical care.

Nutritional assessment of the critically ill patient.

Nutritional assessment can be incorporated into the assessments performed daily by the critical care nurse for every patient. Identification of nutritional deficits will lead to timely interventions and will facilitate recovery and early discharge. The metabolic responses to starvation and stress are reviewed, and bedside techniques for nutritional assessment are outlined. General guidelines for nutritional support and parameters for monitoring the effectiveness of nutritional therapies are defined.