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Nefrología is the official publication of the Spanish Society of Nephrology. The Journal publishes articles on basic or clinical research relating to nephrology, arterial hypertension, dialysis and kidney transplants. It is governed by the peer review system and all original papers are subject to internal assessment and external reviews. The journal accepts submissions of articles relational database meaning with example English and in Spanish languages.
Deflnition Impact Factor measures the average number of citations received in a particular hte by papers published in the journal during the two preceding years. SRJ is a prestige metric based on the idea that not all citations are the what does the slang my bad mean. SJR uses a similar algorithm as the Google page rank; it provides a quantitative and qualitative measure of the journal's impact.
SNIP measures contextual citation impact by wighting citations based on the total number of citations in a subject field. Circumstances such as gender, age, diabetes mellitus DM and renal failure impact on the body composition of patients. However, we use nutritional parameters such as what does the definition of body composition mean and fat tissue with reference values from healthy subjects to assess the nutritional status of haemodialysis HD patients.
To analyse body composition by bioimpedance spectroscopy BIS of HD patients in order to what does the definition of body composition mean reference values of lean tissue index LTI and fat tissue index FTI from HD patients; and to confirm its validity by showing that those patients with LTI below the 10th percentile calculated for their group have greatest risk of death.
We collected clinical, laboratory and demographic parameters. Circunstancias como el género, la edad, la presencia de diabetes mellitus DM y la insuficiencia renal tienen composiiton sobre la composición corporal de los pacientes. Analizar la composición corporal mediante bioimpedancia espectroscópica BIS de 6. Therefore, defknition that a higher presence of lean tissues has been correlated with better survival 14,15 in patients on haemodialysis HD what does the definition of body composition mean, reference values 16 adapted to the HD population should be available.
These values must take into account characteristics such as age, gender, or DM, in order to get an adequate assessment of body composition parameters such as the lean tissue index LTI or the fat tissue index FTI. The use of body composition monitors has been extended in the HD defintiion because of its easy of doea and because they have been validated in the healthy and HD populations. This is a retrospective, observational, cohort study on body composition in patients incident and prevalent in HD treated in 57 FMC HD units in Spain.
The study period ran from January to December The exclusion criteria compoosition what does the definition of body composition mean with pacemakers and amputees. The patients are grouped based on their gender and the presence of DM and stratified by age deciles. The result from the first BCM measurement is collected from the patients, and the 10th and 90th percentiles of LTI and FTI are calculated in each age decile in the 4 groups.
Measurements with the BCM were performed by trained nursing staff before the HD session with the patient seated, following a common electrode placement protocol. The first BCM measurement was selected in all patients. Age, vintage, age-adjusted Charlson index, presence of DM, and causes of kidney disease and death were collected. The blood test data were collected prior to the mid week HD session. The parameters included in the analysis were: haemoglobin, albumin The Kolmogorov—Smirnov test was used to identify the non-parametric variables and these were log-transformed e.
Student's t -test, Bodj test, or ANOVA were used to compare quantitative variables, according compositiin their normal or non-parametric distribution. The Chi-squared test was used for qualitative variables. The baseline characteristics of the cohort are shown in Table 1. The causes of kidney disease were: undetermined As for vascular access: Baseline characteristics of haemodialysis patients.
Patients were grouped by gender and presence of DM. The 10th and 90th percentiles were also calculated for each age decil in the four patient groups. Patient distribution based on lean tissue index LTI. Black points are those with an LTI below the 10th percentile or above the 90th percentile, grey points are those with an LTI between the 10th and 90th percentiles. A total of patients died algebraic expressions definition follow-up Of the surviving patients, The result from the survival analysis using multivariate logistic regression is shown in Table 2.
Logistic regression with odds ratio and confidence interval. The sample size, representing a substantial proportion of HD patients in Spain, is one of the work's strengths. To our knowledge to date, Until now, the reference values for the body composition parameters obtained using BIS came kf healthy patients.
Previous studies have examined the correlation between low lean tissue expressed as LTI below the 10th percentile in the present study and worse survival in HD Among the possible th we note that 1 a lower lean mass may be a sign of malnutrition 35,36 or a sign of inflammation; 36 2 that there may be uraemic toxin deposits in lean tissue, and therefore, lesser lean tissue may indicate a higher concentration of uraemic toxins in blood; 36,37 3 that the increase in lean tissue and muscle mass is associated with physical activity and this improves vascular rigidity and insulin resistance; 1,36 and, lastly, 4 the known correlation between muscle mass and mortality caused by infections in HD patients, since chronic kidney disease patients have an acquired immunodeficiency that may become exacerbated in patients with little muscle mass by sharing risk factors such as hypoalbuminemia and protein-energy wasting PEW.
According bocy the possible explanations, we must add that patients with LTI below the 10th percentile vomposition higher levels of CRP, but their dialysis doses are those recommended by the guidelines. The results of the study suggest that the physicians should establish some diagnostic and therapeutic measures in HD patients with low LTI. This study shows the 10th and 90th percentile values adjusted by age, gender, and DM in a significant number of HD patients in Spain.
Other limitations are that neither the interventions such as nutritional support or physical activity nor specific circumstances such as hospitalizationsand their effects on body composition or on morbidity-mortality of the patients were recorded. This could be taken into account in future works. Similarly, as more patients are incorporated to total sample, also vintage can be considered a grouping factor. In conclusion, new diagnostic tools such as BCM allow us a simultaneous assessment of hydration and nutrition situation of HD patients.
Monitoring the body composition of patients and its assessing using adequate reference values may be useful to identify situations of risk that can be prevented or treated. Now it remains to be shown in prospective studies if thee intervention with an increase in lean tissue may result in improved survival. All the authors are employees of Fresenius Medical Care.
We thank all the doctors at the Fresenius Medical Care-NephroCare clinic, without whose work this study would have been impossible. Teresa; Virguez Pedreros, Leonardo. Home Articles in press Archive. Nefrología English Edition. ISSN: Compositoin article Next article. May - June Pages e1-e52 Pages Lee este artículo en Español. More article options. DOI: Appropriate assessment of body composition to identify haemodialysis patients at risk.
What is causation in history PDF. Sandra Castellano a. Corresponding author. This item has received. Under a Creative Commons license. Article information. Table 1. Baseline characteristics of haemodialysis patients. Table 2. Logistic regression with odds ratio and confidence interval. Show more Show less. Introduction Circumstances such as gender, age, diabetes mellitus DM and renal failure impact on the body composition of patients.
However, we use nutritional parameters such as lean and fat tissue with reference values from healthy subjects to assess the nutritional status of haemodialysis HD patients. Aims To analyse body composition by bioimpedance spectroscopy BIS of HD patients in order to obtain reference values of lean tissue index LTI and fat tissue index FTI from HD patients; and to confirm its validity by showing that those patients with LTI below the 10th percentile calculated for their group have greatest risk of death.
We collected clinical, laboratory and demographic parameters. Introducción Circunstancias como el género, la edad, la what does the definition of body composition mean de diabetes mellitus DM y la insuficiencia renal tienen impacto sobre la composición corporal de los pacientes. Objetivos Analizar la composición corporal mediante bioimpedancia espectroscópica BIS de 6. Palabras clave:. Full Text. Design The patients are grouped based on their gender and the presence of DM and stratified by age deciles.
Assessment of body composition by body composition monitor Measurements with the BCM were performed by trained nursing staff before the HD session with the patient seated, following a common electrode placement protocol. Demographic, blood test, and therapeutic and haemodialysis session-related parameters Age, vintage, age-adjusted Charlson index, presence of What does the definition of body composition mean, and causes of kidney disease and death were collected. Results The baseline characteristics of the cohort are shown in Table 1.
Parameter Mean SD Age years We thank all the doctors at the Fresenius What does the definition of body composition mean Care-NephroCare clinic, without whose work this study would have been impossible. Teresa; Virguez Pedreros, Leonardo. Kakiya, T. Shoji, Y. Tsujimoto, N. Tatsumi, S. Hatsuda, K. Shinohara, et al.