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J Yang, H F Xu, W B Cheng, Y Z Gu, P Xu, Q Y Yu, P Lyu
Objective: To study the characteristics of social relations and relative factors among MSM in Guangzhou. Methods: Data was collected through a cross-sectional study in Guangzhou from November 2016 to May 2017. Sample size was estimated and participants were recruited from the voluntary counseling and testing services (VCT) which were set for MSM population, by nongovernmental organizations (NGOs) and the Centers for Disease Control and Prevention (CDC). Social ties and demographic characteristics of the respondents and their sexual partners were analyzed through both Chi square test and generalized estimating equations (GEE)...
April 10, 2018: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
Paula Lehmann F, Francisco Cano Sc
Peritoneal dialysis (PD) is the most common renal replacement therapy used in pediatric patients with end stage renal disease. This population has a mortality rate 1,000 times greater compare to pediatric population, mainly due to cardiovascular causes. OBJECTIVE: To characterize pediatric patients on chronic PD in relation to dialysis and cardiovascular outcome. PATIENTS AND METHODS: Cross sectional study. Patients in stable PD according to DOQI criteria were selected...
April 2017: Revista Chilena de Pediatría
Ljubica Djukanović, Nada Dimković, Jelena Marinković, Branislav Andrić, Jasmina Bogdanović, Ivana Budošan, Anica Cvetičanin, Kosta Djordjev, Verica Djordjević, Živka Djurić, Branimir Haviža Lilić, Nasta Jovanović, Rosa Jelačić, Violeta Knežević, Svetislav Kostić, Tatjana Lazarević, Stanimir Ljubenović, Ivko Marić, Rodoljub Marković, Srboljub Milenković, Olivera Milićević, Igor Mitić, Vesna Mićunović, Milena Mišković, Dragana Pilipović, Steva Plješa, Miroslava Radaković, Marina Stojanović Stanojević, Biserka Tirmenštajn Janković, Goran Vojinović, Kornelija Šefer
OBJECTIVES: The aims of the study were to determine the percentage of patients on regular hemodialysis (HD) in Serbia failing to meet KDOQI guidelines targets and find out factors associated with the risk of time to death and the association between guidelines adherence and patient outcome. METHODS: A cohort of 2153 patients on regular HD in 24 centers (55.7% of overall HD population) in Serbia were followed from January 2010 to December 2012. The percentage of patients failing to meet KDOQI guidelines targets of dialysis dose (Kt/V>1...
2015: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
N J Parziale, M S Smith, E C Marineau
In this work, we present the excitation/emission strategy, experimental setup, and results of an implementation of krypton tagging velocimetry (KTV). KTV is performed as follows: (i) seed a base flow with krypton; (ii) photosynthesize metastable krypton atoms with a frequency-doubled dye laser to form the tagged tracer; (iii) record the translation of the tagged metastable krypton by imaging the laser-induced fluorescence (LIF) that is produced with an additional dye laser. The principle strength of KTV, relative to other tagging velocimetry techniques, is the use of a chemically inert tracer...
June 1, 2015: Applied Optics
María Luisa Ceballos O, Angélica Rojo L, Marta Azócar P, María José Ibacache M, Angela Delucchi B, Lily Quiroz Z, Carlos Irarrázabal M, Iris Delgado B, Francisca Ugarte P, Francisco Cano Sch
INTRODUCTION: Children with chronic kidney disease (CKD) and receiving peritoneal dialysis (PD) have disorders of mineral metabolism that impact their growth, survival and cardiovascular functions. New molecular markers offer a better understanding of the pathophysiology of this disease. OBJECTIVE: To characterize some components of mineral metabolism, with emphasis on FGF23/Klotho and cardiovascular functions (CV) of these patients. PATIENTS AND METHOD: Prospective observational cohort study...
February 2014: Revista Chilena de Pediatría
Ramiro Del Valle, Marco Zenteno, José Jaramillo, Angel Lee, Salvador De Anda
OBJECT: The cumulative experience worldwide indicates complete radiosurgical obliteration rates of brain arteriovenous malformations (AVMs) ranging from 35 to 90%. The purpose of this study was to propose a strategy to increase the obliteration rate for AVMs through the dynamic definition of the key target volume (KTV). METHODS: A prospective series of patients harboring an AVM was assessed using digital subtraction angiography in which a digital counter was used to measure the several stages of the frame-by-frame circulation time...
December 2008: Journal of Neurosurgery
Su-Lien Chou, Yong-Chien Ling, Mo-Hsiung Yang, Chung-Yen Pai
The marijuana leaves are usually mixed with tobaccos and smoked at amusement places in Taiwan. Recently, for investigation-legal purposes, the police asked if we can identify the marijuana smoke in a KTV stateroom (a private room at the entertainment spot for singing, smoking, alcohol drinking, etc.) without marijuana residues. A personal air-sampler pump fitted with the GC liner-tube packed with Tenax-TA adsorbent was used for air sampling. The GC-adsorbent tube was placed in the GC injector port and desorbed directly, followed by GC-MS analysis for the determination of delta9-tetrahydrocannabinol (delta9-THC) in indoor air...
August 13, 2007: Analytica Chimica Acta
J L Teruel, L E Alvarez Rangel, M Fernández Lucas, J L Merino, F Liaño, M Rivera, R Marcén, J Ortuño
INTRODUCTION: The ionic dialysance monitor allows an automated measure of Kt in each dialysis session. Bioelectrical impedance analysis (BIA) determines the total body water which it is equivalent to the urea volume of distribution (V). If the Kt, determined by ionic dialysance, is divided by the V, estimated by bioelectrical impedance, a Kt/V at the end of dialysis session (Kt/VDiBi) is obtained. AIM OF THE STUDY: To evaluate the agreement between the Kt/VDiBi and the Kt/V obtained by two simplified formulas: the monocompartimental (Kt/Vm) and the equilibrated (Kt/Ve) Daugirdas equations...
2007: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
S Urso, F Milone, M Garozzo, M E Cannavò, A Biondi, G Battaglia
PURPOSE: Although maintenance dialysis prevents death from uremia, patient survival remains an important issue. Cardiovascular (CV) events have been considered the main cause of death in hemodialysis (HD) patients. Some authors demonstrated an expected remaining life span of < or =2 yrs in HD patients who had a myocardial infarction. Therefore, it is very important to appraise risk factors and to adopt the correct diagnostic approach to match therapy. Nevertheless, acute myocardial infarction can be misdiagnosed in uremic patients, because typical markers have high false positivity rates...
November 2004: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
M D Arenas, F Alvarez-Ude, J J Egea, M T Gill, M L Amoedo, I Millán, A Soriano, A E Sirvent
UNLABELLED: One of the requirements of a health care quality management system is to be able to established clinical performance measures (CPM) for its key organisation processes. We described some of the performance measurement that has been used in our hemodialysis unit, since the implementation in the year 2001, of a Quality Management System (QMS). We analyze and compare the effect that the introduction of a ISO 9002 based QMS had in our CPM during the period 2001-2002 (post QMS) vs...
2004: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
Santhanam Ramalakshmi, Judith Bernardini, Beth Piraino
Nightly intermittent peritoneal dialysis (NIPD) with no day dwell has the potential to enhance peritoneal host defenses. We evaluated outcomes in 24 patients who had been placed on NIPD at the start of peritoneal dialysis as compared with outcomes of 24 control patients on standard continuous cycling peritoneal dialysis (CCPD). As compared with patients on CCPD, patients on NIPD had a lower peritonitis rate (0.34 episodes/year vs. 0.59 episodes/year, p < 0.03) and fewer hospital admissions (1.0 admission/year vs...
2003: Advances in Peritoneal Dialysis
M J García Cortés, M C Sánchez Perales, A Liébana, J M Gil, F J Borrego, J Borrego, P Pérez del Barrio, P Serrano, V Pérez Bañasco
UNLABELLED: Biocompatible hemodialysis membranes induce a smaller inflammatory response in hemodialysis patients, and remove a larger amount of higher molecular weight retention products, then cellulose membranes. These phenomena could improve uremic anemia in hemodialysis patients. The objective was to evaluate the effects of biocompatible AN69 membranes on anemia in hemodialysis patients. Twenty-five stable patients undergoing hemodialysis with cuprophane membrane for more than 6 months were studied prospectively...
July 2001: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
P Zhao, H Yu
OBJECTIVE: To understand the types of entertainment establishments involved in commercial sex and Acquired immunodeficiency syndrome (AIDS) related risk behaviors among sex workers. METHODS: One district in Shanghai was selected. All entertainment establishments in the district were mapped. In-depth interview was carried out to collect information about demographic, sexual, drug use, measures of self-protection, condom use, history with sexually transmitted disease (STD) and health care seeking behaviors...
October 2001: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
E Armada, C Pérez Melón, A Otero, P Gayoso, M Rodríguez, J Esteban Morcillo
UNLABELLED: Hyperhomocysteinemia is an independent risk factor for cardiovascular mortality in ESRD, but about 80% of total homocysteine (tHcy) is bound to albumin (alb). We have tried, prospectively, to reduce tHcy levels by using folic acid (f.a.) and vitamin B6 (P.P.) supplementation. All patients on HD, not receiving f.a. or P.P. and all new patients, after their third month on HD, were supplemented with f.a. 5 mg/48 hours p.o and P.P. 40 mg/week. We determined folate, P.P. (RIA), vit...
March 2001: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
M Aparicio, N Cano, P Chauveau, R Azar, B Canaud, A Flory, M Laville, X Leverve
BACKGROUND: Despite the severity and the prognosis value of undernutrition in haemodialysed patients, no large study is available as yet in Europe. Hence, this French National Cooperative Study aimed to determine the prevalence of undernutrition and its relationship to dialysis efficacy. METHODS: Nutritional status was determined in 7123 patients (i.e. one-third of the French haemodialysis population) using body mass index (BMI), predialysis haemoglobin, albumin, pre-albumin, cholesterol, and also normalized protein catabolic rate (nPCR) and lean body mass (LBM) calculated from pre- and postdialysis urea and creatinine...
July 1999: Nephrology, Dialysis, Transplantation
G Mingardi, L Cornalba, E Cortinovis, R Ruggiata, P Mosconi, G Apolone
BACKGROUND: Interest in measuring health-related quality of life (HRQoL) has increased together with an awareness that such humanistic outcomes require valid and reliable measures. In the last decade short, simple and multidimensional generic and disease-specific questionnaires have been developed. Among the several generic questionnaires available, the Short Form 36 Items Health Survey (SF-36) was translated and validated in several languages, and applied to different settings and diseases...
June 1999: Nephrology, Dialysis, Transplantation
J T Daugirdas
Although computer solution of the differential equations used in urea kinetic modeling has its advantages, simplified formulas that are actually approximate algebraic solutions to the same equations in the clinically useful range are also useful. The Kt/V can be resolved from the predialysis to postdialysis urea nitrogen ratio (R), the weight loss (UF), session length in hours (t), and anthropometric or modeled volume (V) using the equation: KtV = In (R - 0.008 x t) + (4 - 3.5 x R) x 0.55 UF/V. The equilibrated Kt/V (eKTV) can be estimated from the single-pool arterial Kt/V (spaKTV) or the single-pool venous Kt/V (spmvKTV) using a rate equation based on the regional blood flow model of urea kinetics: eKTV = spaKTV - (0...
October 1995: Advances in Renal Replacement Therapy
J T Daugirdas
Three rapid formulas for Kt/V were compared: 1) Kt/V-PRU = 0.04*PRU-1.2; 2) Kt/V-PRUopt = 0.026*PRU-0.46; and 3) KTV-LN = -In(R-0.03-UF/W). Accuracy was compared in a database of 339 3/week modeling sessions in 256 patients. The standard of comparison was Kt/V obtained by 3 point variable volume single pool modeling, using K values estimated from KoA, Qb, Qd, and UF rate. The most accurate formula was Kt/V-LN, which correlated with Kt/V to a high degree (0.994), and with a [%ERROR] of only 2.2 +/- 1.7 (SD)...
July 1990: ASAIO Transactions
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