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Lipid emulsions (LE) are a component of parenteral nutrition (PN) and its fatty acid (FA) profile determines various physiological responses.To assess the adequacy of a clinical not restricted protocol in the choice of LE by studying complementary biochemical and hematological parameters (BHP) at the beginning of the PN.A 4-year retrospective observational study of LE administered to patients with PN. Demographic, clinical, nutritional and analytical variables at the beginning of the PN were collected. Univariate and multivariate analyses were performed to study the correlation between the initial clinical and biochemical parameters and the LE profile used.Four hundred and sixty patients (29.5%) out of 1,558 had BHP at the beginning of PN and used mainly the LE combinations soybean (SO) + medium-chain triglycerides (MCT) + olive (OO) + fish (FO) (37.4%) and SO + MCT + OO (35.6%). Statistically significant differences on the LE pattern were observed between patients with and those without initial BHP (44.8% vs39.5% received FO, respectively). Conditions regularly associated with elevated C-reactive protein (CRP) were associated with increased use of FO LE: SO+OO+FO (OR: 4.52 [95% CI: 1.43-13.91]) and SO+MCT+OO+FO (OR: 3.34 [95% CI: 2.10-5.33]). In those complex conditions related with the critical patient MCT were used: hepatic failure (SO+MCT OR: 2.42 [95% CI: 1.03-5.68]) and renal failure (SO+MCT+FO OR: 3.34 [95% CI: 1.12-9.99]).The use of BHP at the beginning of PN treatment allows complementing the clinical and metabolic criteria in LE selection.INTRODUCCIÓN: el patrón de ácidos grasos (AG) de las emulsiones lipídicas (EL) utilizadas en nutrición parenteral (NP) condiciona diferentes respuestas fisiológicas. OBJETIVOS: estudiar si los criterios clínicos de prescripción de EL en NP establecidos en nuestro protocolo abierto y basados en recomendaciones se correlacionan con marcadores bioquímicos y hematológicos iniciales. MÉTODOS: estudio observacional retrospectivo de cuatro años. Se recogieron variables demográficas, clínicas, nutricionales y analíticas al inicio de la NP. Se realizó un análisis uni y multivariante para estudiar la asociación entre los valores iniciales de los parámetros bioquímicos y hematológicos (PBHE) y el tipo de emulsión lipídica empleada. RESULTADOS: de los 1.558 pacientes, 460 pacientes (29,5%) tenían PBHE al inicio de la NP y utilizaron mayoritariamente las combinaciones soja (AS) + triglicéridos de cadena media (MCT) + oliva (AO) + pescado (AP) (37,4%) y AS+MCT+AO (35,6%). Se encontraron diferencias estadísticamente signifiativas en el patrón EL utilizado entre los pacientes con y sin PBHE: patrón de AG con AP 44,8% vs.39,5%, respectivamente. Las situaciones clínicas con proteína C-reactiva (PCR) elevada se asociaron con mayor uso de EL con AP: AS+AO+AP (OR: 4,52 [IC 95%: 1,43-13,91] y AS+MCT+AO+AP (OR: 3,34 [IC 95%: 2,10-5,33]). En situaciones clínicas complejas asociadas con paciente crítico se utilizó EL con MCT: afectación hepática (AS+MCT OR: 2,42 [IC 95%: 1,03-5,68]) y afectación renal (AS+MCT+AP OR: 3,34 [IC 95%: 1,12-9,99]). CONCLUSIONES: la inclusión protocolizada de PBHE al inicio de la NP permite complementar criterios clínicos y metabólicos en la elección de la EL.

Malnutrition is common in patients admitted to hospital and is associated with morbidity and mortality. We conducted a study to assess the prevalence of nutritional risk, risk factors associated and its consequences in a third-level hospital.This is a prospective nutritional screening study of hospitalized patients evaluated within the first 72 hours of admission, by Malnutrition Universal Screening Tool (MUST) and Short Nutritional Assessment Questionnaire (SNAQ) screening tests. The variables recorded included demographic, anthropometric, hospitalization and clinical data.Out of 409 patients, 12.7% and 15.3% were nutritionally at risk according to MUST and SNAQ, respectively, with the highest prevalence in critical care units (33.3%; 25.5%), amongst oncologic patients (17.5%; 28.4%) and those with higher Charlson comorbidity indices (CCI). Length of stay (LOS) was longer in patients at severe malnutrition risk (15.4 vs 9.9 days for MUST; 13.3 vs 9.9 days for SNAQ). Mortality was higher in those with high malnutrition risk (66.7% vs 10.9% for MUST; 50.0% vs 14.2% for SNAQ). Multivariate analysis showed that malnutrition was associated with CCI and mortality. Risk factors associated with LOS were admission as emergencies for both MUST and SNAQ tests.The prevalence of malnutrition is high in patients on admission to a third-level hospital, with a higher prevalence in critical care units, amongst oncologic patients and those with a higher CCI. Malnutrition is associated with longer LOS and higher mortality. The systematic clinical use of screening tools enables to detect patients at risk of malnutrition and take appropriate action.

The quality of home parenteral nutrition (NPD in its Spanish acronym) depends on the frequency and type of complication associated with NPD treatment and the likelihood of survival. The present study assesses the quality of the NPD programme in place in our hospital in terms of survival, infections and mechanical complications. A retrospective study was carried out into the clinical follow-up data of all the patients (n = 24) included in our NPD programme since its start in 1985 until 1998 (14 years). An estimate is made for: a) the annual index of infectious complications (IAC in its Spanish acronym), b) the annual index of mechanical complications (MAC in its Spanish acronym) and c) the likelihood of survival by means of the Kaplan-Meier method. The quality specifications adopted are those of the literature reflecting the current provision of NPD programmes and the survival values of patients undergoing dialysis for chronic kidney failure. The most frequent pathology in our context is benign (70.8%), distributed as follows: small bowel syndrome of ischaemic origin (45.8%), small bowel syndrome of non-ischaemic origin (12.5%) and idiopathic intestinal pseudo-obstruction (12.5%). The patients with benign pathologies present a higher survival rate than patients with neoplastic disease (95% in the fifth year of treatment versus 45% at twenty months), with a statistically significant difference. The annual index of infectious complications is 0.6 (median value of the 14 years studied). Similarly, the annual indices of obstructions and thromboses are 0.11 and 0.0095, respectively. In our opinion, the quality of the NPD programme in place at our hospital is highly satisfactory because both the survival rate and the annual indices of mechanical and infectious complications are acceptable with regard to the programmes in place in the international sphere. In addition, in terms of survival, NPD seems slightly more effective than dialysis for chronic kidney disease.

The purpose of this paper is to introduce a computer program to control the Pharmacy Service Parenteral Nutrition Unit. The program's main feature is a broad menu of possibilities for the clinical monitoring of patients receiving PN. We explain its operation, potential and applications and give some practical examples of some of those applications.