Factores de riesgo cardiovascular en pacientes en hemodiálisis / Cardiovascular risk factors in patients on hemodialysis

Introducción: La enfermedad cardiovascular es la primera causa de muerte en los pacientes con enfermedad renal crónica. En los hipertensos, la enfermedad renal crónica es la segunda causa de muerte, el daño vascular sistémico es la norma. Objetivo: Identificar los factores de riesgo cardiovascular tradicionales y no tradicionales y su asociación con la enfermedad cardiovascular en pacientes en hemodiálisis. Material y Métodos: Estudio de corte transversal en 247 pacientes en hemodiálisis crónica. Las variables analizadas fueron: causas de enfermedad renal crónica, factores de riesgo cardiovascular tradicionales y no tradicionales y enfermedades cardiovasculares. Se determinaron tablas de frecuencias y estadísticas de asociación mediante Chi cuadrado. Para determinar el riesgo de mortalidad se utilizó la razón de prevalencia (RP). Se consideró como nivel de significación estadística a p<0,05 con 95 % de confiabilidad. Resultados: Las causas de enfermedad renal crónica predominantes fueron la hipertensión arterial con 35,6 por ciento y la Diabetes Mellitus tipo 2 con 33,1 por ciento. Los pacientes hipertensos tuvieron más probabilidades de presentar una enfermedad cardiovascular con 2,63 veces mayor que el grupo de referencia. En los factores de riesgo cardiovascular no tradicionales la mayor probabilidad la presentaron los pacientes con proteína C reactiva elevada con 5,19 veces, seguido de la hiperuricemia con 3,79 veces y las alteraciones del producto calcio-fósforo con una probabilidad de 3,27 veces. Conclusiones: Los factores de riesgo cardiovasculares tradicionales se relacionan significativamente con la presencia de enfermedad cardiovascular(AU)

Introduction: Cardiovascular disease is the leading cause of death in patients with chronic kidney disease. In hypertensive patients, chronic kidney disease is the second cause of death, and systemic vascular damage has become the norm. Objective: To identify traditional and non-traditional cardiovascular risk factors and their association with cardiovascular disease in patients on hemodialysis. Material and Methods: Cross-sectional study conducted on 247 patients on chronic hemodialysis. The variables analyzed included: causes of chronic kidney disease, traditional and non-traditional cardiovascular risk factors, and cardiovascular diseases. Frequency tables and association statistics were determined by the chi-square test. The prevalence ratio (PR) was used to determine the risk of mortality. The level of statistical significance was considered to be at p value of less than 0,05 with a reliability of 95 percentResults: The most frequent causes of chronic kidney disease were arterial hypertension (35,6 percent) and type 2 diabetes mellitus (33,1 percen). Hypertensive patients were 2,63 times more likely to present cardiovascular disease than the reference group. In the case of non-traditional cardiovascular risk factors, the patients with elevated C-reactive protein were 5,19 more likely to develop cardiovascular disease, followed by those with hyperuricemia that were 3,79 more likely, and the patients with alterations in calcium and phosphorous who were 3,27 times more likely to suffer from this disease. Conclusions: Traditional cardiovascular risk factors are significantly related to the presence of cardiovascular disease(AU)

Variabilidade interensaios de dislipidemias em pacientes hipertensos / Inter-assays variability of dislipidemias in hypertensive patients

INTRODUÇÃO E OBJETIVOS: Ensaios de diferentes procedências para avaliação das dislipidemia podem resultar em variações significativas nos resultados obtidos e consequente conduta inadequada pelo clínico. O estudo objetivou comparar resultados laboratoriais de colesterol total (CT), triglicérides (TG), colesterol da lipoproteína de alta densidade (HDL-C), colesterol da lipoproteína de baixa densidade (LDL-C), apolipoproteína A-1 (Apo A-1), apolipoproteína B (Apo B) e lipoproteína (a) (Lp[a]) e índices lipídicos (não-HDL-C, CT/HDL-C, LDL-C/HDL-C, TG/HDL-C e Apo B/HDL-C) de pacientes hipertensos e/ou diabéticos diagnosticados. MÉTODOS: Foram utilizados conjuntos reativos, e os respectivos analisadores Gold Analisa, Dia Sys (CCX - Abbott), Dade Behring (Nefelômetro BN 100) e Roche (COBAS Integra 400), para verificar a reprodutibilidade dos resultados obtidos. Participaram 99 pacientes (36 do sexo masculino e 63 do feminino). Comparando os resultados, verificamos que: todas as médias obtidas dos constituintes lipídicos apresentaram diferença significativa; número semelhante de pacientes apresentou níveis séricos elevados de CT, TG, Lp(a) e Apo A-1. O HDL-C, o LDL-C e a Apo B apresentaram discordância, assim como os índices de CT/LDL-C, LDL-C/HDL-C e TG/HDL-C. Para não-HDL-C e ApoB/HDL, houve semelhança no número de pacientes com valores não recomendados. Em consequência da diferença, em relação ao LDL-C, a decisão da conduta terapêutica poderá ser inadequada, enquanto o não-HDL-C, além de evidenciar partículas aterogênicas, apresentou número de hipertensos com valores séricos não referendados semelhantes, independente da metodologia e do equipamento utilizado. CONCLUSÃO: No grupo de hipertensos analisados, o não-HDL-C se caracterizou um importante fator de correção interensaios de parâmetros lipídicos. E sua associação à relação Apo B/HDL-C pode ser um fator adicional em relação às condutas hipolipemiantes a serem adotadas.

INTRODUCTION AND OBJECTIVES: Different assays to evaluate dyslipidemia may show significant variations in the obtained results and a consequent inappropriate clinical approach may be adopted. This study aimed to compare the results of total cholesterol (CT), triglycerides (TG), HDL-C, Apo A1, Apo B, lipoprotein (a) and lipidic indexes (not-HDL-C, CT/HDL-C, LDL-C/HDL-C, TG/HDL-C and Apo B/HDL-C) of hypertensive and/or diabetic patients. METHODS: The following reactive kits and respective analyzers were applied to verify the reproducibility of results: Gold Analisa, DiaSys (CCX-ABBOTT), Dade Behring (Nephelometer BN 100) and Roche (COBAS Integra 400). Ninety nine patients (36 male and 63 female gender) were investigated. Comparing the results, we observed that all mean numbers of lipid constituents showed a significant difference. A similar number of patients had high CT, TG, Lp (a) and Apo A-1 serum levels. There was also disagreement in HDL-C, LDL-C, ApoB, CT/LDL-C, LDL-C/HDL-C and TG/HDL-C indexes. For not-HDL-C and ApoB/HDL, there was similarity in the number of patients with not recommended values. As a consequence of this difference, the choice of therapeutic approach may be inappropriate as to LDL-C levels, whereas Not-HDL-C not only showed atherogenic particles but also a number of hypertensive patients with similar not recommended serum values, regardless of the methodology and the equipment used. CONCLUSION: In the analyzed group of hypertensive patients, not-HDL-C was an important inter assay correction factor of lipidic parameters. The association with Apo B/HDL-C relation may be an additional factor as to the choice of hypolipemiant treatments.

Evaluación de parámetros utilizados por estudiantes en la atención clínica odontológica de pacientes hipertensos / Evaluation of parameters used by students in the clinical dental care of hypertensive patients

El presente trabajo de investigación tiene como objetivo principal evaluar los parámetros utilizados por estudiantes en la atención clínica odontológica de pacientes hipertensos, que consultan en las clínicas odontológicas de la Facultad de Odontología de la Universidad de El Salvador. Dicha investigación se llevo acabo en el periodo del ciclo I/2007 durante el mes de Marzo, en donde los investigadores realizaron el paso de instrumentos, siendo estos, la guía de observación y la cédula de entrevista utilizadas para tal efecto, donde se les aplicaron a los estudiantes que estaban programados en la primera rotación clínica de los ciclos IX, X y XII, que en ese momento se encontraban dando atención clínica odontológica a pacientes con diagnóstico de hipertensión arterial. Para obtener los resultados deseados los investigadores se incorporaron a las diferentes clínicas, para hacer observaciones y evaluaciones de como el estudiante realiza el abordaje clínico del paciente previo al tratamiento dental; posteriormente se realizó la entrevista en donde el estudiante respondió cada pregunta de la cedula de entrevista.

The main objective of this research work is to evaluate the parameters used by students in the clinical dental care of hypertensive patients, who consult in the dental clinics of the Faculty of Dentistry of the University of El Salvador. This research was carried out in the period of the I / 2007 cycle during the month of March, where the researchers carried out the passage of instruments, being these, the observation guide and the interview card used for this purpose, where they were applied to the students who were scheduled in the first clinical rotation of cycles IX, X and XII, who at that time were giving clinical dental care to patients with a diagnosis of arterial hypertension. To obtain the desired results, the researchers joined the different clinics, to make observations and evaluations of how the student performs the clinical approach to the patient prior to dental treatment; Later, the interview was carried out in which the student answered each question on the interview card.