Evolution of nutritional status and survival in patients with cancer on tyrosine kinase inhibitors treatment. / Evolución nutricional y de la supervivencia en un grupo de pacientes oncológicos en tratamiento con inhibidores de tirosina quinasa.

BACKGROUND AND OBJECTIVE: Treatment with oral antineoplastic agents known as tyrosine kinase inhibitors (TKIs) is new and, thus, little is known about their impact on nutritional status (NS), dietary intake, quality of life, and survival. The aim of this study was to provide information on these components in order to guide future nutritional recommendations. PATIENTS AND METHOD: A prospective, observational study in adults who start treatment with TKIs, in whom NS was assessed using the Patient-Generated Subjective Global Assessment (PG-SGA), anthropometric measures, biochemical parameters, and dietary intake (24-hour dietary recall). The EORTC QLQ-C30 was used to assess quality of life. Nonparametric tests were used in statistical analysis, and survival was analyzed using Kaplan-Meier and log-rank curves. RESULTS: Of the overall sample, 21.7% had moderate malnutrition according to PG-SGA, and 74.2% moderate weight loss at 6 months, but no patient had BMI<18.5kg/m2. Patients with moderate malnutrition had lower survival at four years of diagnosis (log-rank=0.015). Energy intake was lower than recommended by the ESPEN 2017 congress, and no patient covered the protein requirements (1.5g protein/kg weight) during follow-up. A worse score on the global health scale of the EORTC QLQ-C30 was related to worse NS. CONCLUSIONS: Treatment with TKIs does not appear to have a significant impact on NS and quality of life after 6 months of follow-up. Malnutrition should be prevented through individualized nutritional advice because it is related to shorter survival.

Clinical and economic impact of the taurolidine lock on home parenteral nutrition.

INTRODUCTION: catheter-related bloodstream infections (CRBSI) are one of the most serious concerns in patients on home parenteral nutrition (HPN) which involve high morbidity and cost for the healthcare system. In the last years, taurolidine lock has proven to be beneficial in the prevention of CRBSI; however, the evidence of its efficiency is limited. OBJECTIVE: to determine if taurolidine lock is a cost-effective intervention in patients on HPN. MATERIALS AND METHODS: retrospective study in patients on HPN with taurolidine lock. We compared the CRBSI rate and cost of its complications before and during taurolidine lock. RESULTS: thirteen patients, six (46%) males and seven (54%) females, with a mean age of 61.08 (SD = 14.18) years received taurolidine lock. The total days of catheterization pre and per-taurolidine were 12,186 and 5,293, respectively. The underlying disease was benign in five patients (38.5%) and malignant in eight (61.5%). The CRBSI rate pre vs per-taurolidine was 3.12 vs 0.76 episodes per 1,000 catheter days (p = 0.0058). When the indication was a high CRBSI rate, this was 9.72 vs 0.39 (p < 0.001) in pre and per-taurolidine period respectively. No differences have been observed in the occlusion rates. None of the patients reported any adverse effects. The total cost of CRBSI in the pre-taurolidine period was 151,264.14 euros vs 24,331.19 euros in the per-taurolidine period. CONCLUSIONS: our study shows that taurolidine lock is a cost-effective intervention in patients on HPN with high risk of CRBSI.

[DIETARY INTAKE AND NUTRITIONAL STATUS IN ONCOLOGY PATIENTS WHO START TREATMENT WITH TYROSINE KINASE INHIBITORS]. / INGESTA DIETÉTICA Y ESTADO NUTRICIONAL DE PACIENTES ONCOLÓGICOS QUE INICIAN TRATAMIENTO CON INHIBIDORES TIROSINA QUINASA.

BACKGROUND: in recent years, researching about new oral antineoplastics has progressed while its impact on dietary intake and nutritional status (NS) hasn't developed enough yet. OBJECTIVES: dietary intake and NS assessment in patients who start treatment with tyrosine kinase inhibitors (TKI) and evaluate its impact on them. METHODS: an observational, prospective-six-months study, in which were included patients starting treatment with TKI. The intake was evaluated by a 24 h dietary record and a food frequency questionnaire. The NS was evaluated by anthropometric measurements and the patient-generated Global Subjective Assessment (PG-GSA); the results were compared with the Spanish references (SENC-semFYC, 2007 and O. Moreiras, 2013). Friedman test, χ2, Wilcoxon, Kruskal-Wallis and Mann-Whitney were used in the statistical analysis. Significance p < 0.05. RESULTS: 22 patients (54.5% male) were included. At baseline, NS was adequate in 73.9% of patients according PG-GSA. Weight loss was no significant, although a high percentage of the energy and protein requirements hadn't been reached. The caloric intake was positively related with the number of meals. Dietary habits did not change during treatment. CONCLUSION: dietary intake did not reach nutritional requirements at baseline. The TKI don't seem to affect the patient's intake and nutritional status. The research about these parameters before starting treatment could prevent future complications and it would guide the dietary advice.

Introducción: la investigación sobre nuevos antineoplásicos orales sigue avanzando en los últimos años mientras que su repercusión sobre la ingesta dietética y el estado nutricional (EN) no progresa de la misma forma. Objetivos: evaluar la ingesta dietética y EN de pacientes que inician tratamiento con inhibidores tirosina quinasa (ITK) y valorar el impacto que tienen sobre ellos. Métodos: estudio observacional y prospectivo de seis meses en el que se incluyeron pacientes que iniciaban tratamiento con ITK. La ingesta se evaluó con: recuerdo 24 h y cuestionario de frecuencia de consumo. El EN se valoró con: medidas antropométricas y cuestionario de valoración subjetiva global generada por el paciente (VSGGP); los resultados se compararon con las referencias SENC-semFYC, 2007 y Moreiras O., 2013. Para el análisis estadístico se utilizaron: Test de Friedman, 2, Wilcoxon, Kruskall-Wallis y Mann-Whitney. Significación p < 0,05. Resultados: se incluyeron 22 pacientes (54,5% hombres). Al inicio del tratamiento, el 73,9% tenía un EN adecuado según VSG-GP. No se produjeron pérdidas de peso significativas, pese a que un porcentaje elevado no cubrió los requerimientos energéticos y proteicos. El número de comidas se relacionó positivamente con la ingesta calórica. La ingesta y los patrones de frecuencia de consumo por grupos de alimentos tampoco variaron durante el tratamiento. Conclusión: la ingesta dietética al inicio del tratamiento no alcanza los requerimientos nutricionales. Los ITK no parecen afectar la ingesta ni el estado nutricional de los pacientes. El estudio de estos parámetros antes de comenzar el tratamiento evitaría futuras complicaciones y guiaría el consejo dietético.

Tratamiento de las complicaciones infecciosas de la nutrición parenteral domiciliaria / Infectious complications of home parenteral nutrition

Las complicaciones infecciosas relacionadas con el catéter son las más frecuentes en los pacientes con nutrición parenteral domiciliaria (0.5-2 infecciones/1 000 días o 0.3-0.5 infecciones/paciente/año). Suelen originarse por diseminación de los microorganismos por vía intraluminal o extraluminal hacia la punta del catéter. La mayoría de estas infecciones están producidas por microorganismos de la flora saprofita de la piel (especialmente Staphylococcus coagulasa negativo). El tipo de infección más frecuente es la bacteriemia asociada al catéter/sepsis de catéter, cuyo diagnóstico se realiza mediante el crecimiento del mismo microorganismo en la sangre del paciente y en un cultivo del catéter. La realización de hemocultivos extraídos a través del catéter y de vía periférica son muy útiles en el diagnóstico ya que mostrarán un crecimiento mayor y más rápido de los microorganismos en los cultivos extraídos de la vía central. En los pacientes con nutrición parenteral domiciliaria es importante tratar las infecciones sin retirar el catéter. El tratamiento antibiótico se administrará a través del catéter durante al menos 2 semanas. En los últimos años se ha popularizado la técnica del sellado del catéter con antimicrobianos, que parece mejorar las tasas de salvamento del catéter y disminuir las recaídas tras el tratamiento, principalmente en la infecciones originadas por Staphylococcus coagulasa negativo.