ABSTRACT
En el paciente crítico, la malnutrición puede ser preexistente, manifestarse al ingreso o desarrollarse de forma evolutiva, favorecida por el estado hipercatabólico e hipermetabólico. Por lo que para identificar el estado nutricional del paciente existen parámetros destinado a su valoración. Sin embargo, su aplicación en los pacientes críticos es difícil, debido a la interpretación de los resultados se encuentra alterada por los cambios originados debido a la enfermedad aguda y a las medidas terapéuticas. El objetivo fue determinar si el estado nutricional es un factor pronóstico de mortalidad en el paciente críticamente enfermo...
Subject(s)
Humans , Patient Care/mortality , Critical Care/methods , Malnutrition/complications , Nutrition Rehabilitation , Food and Nutritional Surveillance , Nutrition for Vulnerable GroupsABSTRACT
UNLABELLED: AMS: To describe the characteristics and surgical outcomes of full thickness macular hole surgery after laser assisted in situ keratomileusis (LASIK) for the correction of myopia. METHODS: 13 patients (14 eyes) who developed a macular hole after bilateral LASIK for the correction of myopia participated in the study. RESULTS: Macular hole formed 1-83 months after LASIK (mean 13 months). 11 out of 13 (84.6%) patients were female. Mean age was 45.5 years old (25-65). All eyes were myopic (range -0.50 to -19.75 dioptres (D); mean -8.4 D). Posterior vitreous detachment (PVD) was not present before and was documented after LASIK on 42.8% of eyes. Most macular hole were unilateral, stage 4 macular hole, had no yellow deposits on the retinal pigment epithelium, had no associated epiretinal membrane, were centric, and had subretinal fluid. The mean diameter of the hole was 385.3 microm (range 200--750 microm). A vitrectomy closed the macular hole on all eyes with an improvement on final best corrected visual acuity (VA) on 13 out of 14 (92.8%) patients. CONCLUSIONS: This study shows that vitreoretinal surgery can be successful in restoring vision for most myopic eyes with a macular hole after LASIK.
Subject(s)
Keratomileusis, Laser In Situ/adverse effects , Myopia/surgery , Retinal Perforations/etiology , Retinal Perforations/surgery , Adult , Aged , Female , Humans , Male , Middle Aged , Retinal Perforations/physiopathology , Treatment Outcome , Visual Acuity , VitrectomyABSTRACT
There is considerable uncertainty regarding the validity of dietary data collected from free-living populations. Nevertheless, few attempts have been made to validate dietary assessment instruments. To address this issue, we compared average daily protein intake estimated from 24-hour dietary recall interviews to protein intake estimated from urinary nitrogen excretion in 24-hour samples. Among 244 community-dwelling adults who volunteered for a hypertension study, men (n = 139) overreported dietary protein intake by 12 to 19%. In contrast, women (n = 105) reported a dietary protein intake almost exactly in agreement with estimates based on urinary nitrogen levels. Thin men reported about one-third more protein intake than was reflected in their urinary nitrogen measurements. Our results suggest that the accuracy of dietary recall estimates may vary across subgroups of the population. Additional information from sufficiently large validation studies would be helpful in determining the role of dietary assessment instruments which are already in wide use in epidemiologic research. Until such information is obtained, doubts will remain regarding the validity of inferences drawn from nutritional epidemiologic studies.