Guía de práctica clínica para la atención a niños y adolescentes con enfermedad renal crónica / Clinical practice guide for the care to children and adolescents with chronic renal disease

La enfermedad renal crónica constituye un problema de salud por su impacto sobre los individuos, la sociedad y la economía. Teniendo en cuenta lo anterior, y luego de una amplia búsqueda bibliográfica, se diseñó una guía de práctica clínica en el Policlínico Luis Augusto Turcios Lima de la provincia de Pinar del Río, dirigida a los profesionales de la atención primaria de salud, con el objetivo de mejorar la calidad de vida de niños y adolescentes con dicha enfermedad. Esta fue elaborada por los métodos de la medicina basada en la evidencia, según el consenso y la opinión de los expertos. Se logró generalizar esta herramienta, emitir recomendaciones y actualizarla acorde con las nuevas evidencias médicas. Finalmente, resultó evaluada por los expertos como muy recomendada.

Chronic renal disease constitutes a health problem due to its impact on individuals, society and economy. Taking into account the above-mentioned, and after a wide literature search, a clinical practice guide was designed in Luis Augusto Turcios Lima Polyclinic from Pinar del Río province, directed to primary health care professionals, aimed at improving the life quality of children and adolescents with this disease. It was elaborated by medicine methods based on the evidence, according to the consent and opinion of experts. It was possible to generalize this tool, give recommendations and up to date according to the new medical evidences. Finally, it was evaluated by experts as very recommended.

The Development of Dyslipidemia in Chronic Kidney Disease and Associated Cardiovascular Damage, and the Protective Effects of Curcuminoids.

Chronic kidney disease (CKD) is a health problem that is constantly growing. This disease presents a diverse symptomatology that implies complex therapeutic management. One of its characteristic symptoms is dyslipidemia, which becomes a risk factor for developing cardiovascular diseases and increases the mortality of CKD patients. Various drugs, particularly those used for dyslipidemia, consumed in the course of CKD lead to side effects that delay the patient's recovery. Therefore, it is necessary to implement new therapies with natural compounds, such as curcuminoids (derived from the Curcuma longa plant), which can cushion the damage caused by the excessive use of medications. This manuscript aims to review the current evidence on the use of curcuminoids on dyslipidemia in CKD and CKD-induced cardiovascular disease (CVD). We first described oxidative stress, inflammation, fibrosis, and metabolic reprogramming as factors that induce dyslipidemia in CKD and their association with CVD development. We proposed the potential use of curcuminoids in CKD and their utilization in clinics to treat CKD-dyslipidemia.

Temporal superficial arteritis as differential diagnosis in patients with atherosclerotic changes due to advanced chronic renal disease: case report and review of the literature.

Giant cell arteritis is an autoimmune disease that affects medium and large caliber vessels, creating deposits of inflammatory clusters on the arterial wall. It is the most common form of large vessel vasculitis, but given the variability of biopsy efficiency and of other diagnostic strategies employed, the diagnosis of this disease is challenging. We report the case of a 69-year-old female patient who presented with neurological deficit and increased bilateral sensation in the temporal region associated with excruciating headache. Workup revealed calcification of the superficial temporal, vertebral and ophthalmic arteries, as well as suggestive findings on Doppler ultrasound such as the halo sign, pointing to superficial temporal arteritis though not excluding the possibility of those calcifications being consistent with atherosclerosis in a patient with advanced chronic renal disease, which has been reported as giving rise to false-positive results. Knowledge of the main differences between the 2 diagnoses is important, given the wide range of diagnostic imaging possibilities which can avoid the need for biopsy.

3D Low-Cost Equipment for Automated Peritoneal Dialysis Therapy.

A breakthrough in peritoneal dialysis (PD) therapy occurred in 1977 with the development of continuous ambulatory peritoneal dialysis (CAPD). Its simplicity, low cost, and ease with which CAPD could be performed on patients at home contributed to the popularity of this procedure. However, there is a need for continuous improvement in building optimal systems for incident chronic kidney disease (CKD) patients. This research showed the design and construction of a simplified prototype of low-cost automated peritoneal dialysis (APD) equipment that meets international standards to automatically regulate infusion and fluid drainage in and out of a patient with low margins of error. Experimental tests allowed the adjustment of the RPM values concerning the flow rate provided. In addition, thanks to the pressure sensor, it was possible to observe a fluctuation ranging from 9 to 13 kPa, which is within the permissible average specified in the catalogs of medical instruments and equipment. Furthermore, a turbidity sensor was added to decrease the possibility of presenting peritonitis. The results showed absolute values of flow, angular velocity, and pressure that it could deliver for use in APD therapies. Finally, the construction of the APD equipment is presented generally, showing the electronic and mechanical components that constitute it.

The Suffering of Advanced Chronic Renal Patients and Their Relationship with Symptoms in Loja, Ecuador.

Advanced Chronic Kidney Disease (ACKD) supposes a public health problem in Ecuador that requires a comprehensive approach. In view of the scarcity of studies on the subject in this country, the objective of this research was to determine the signs and symptoms associated with the patients' physical, social and psychological spheres that allow properly developing palliative care. A longitudinal, prospective and observational study was conducted with ACKD patients. In order to assess the symptomatic burden and suffering of these patients, the Edmonton Symptom Assessment System Revised: renal (ESAS-r) for renal patients and the Distress Thermometer (DT) were used. The sample consisted of a total of 246 patients. The most common symptoms that affect them, causing them suffering in their daily lives, are those related to well-being, difficulty falling asleep and itching. It is necessary that health professionals adapt care measures and help patients undergoing renal treatment, especially those who have suffered the disease for a longer period of time, in order to alleviate the patients' suffering and therefore improve their daily lives. To such an end, a care plan could be designed that includes early palliative care.

Calidad de vida percibida y adherencia al tratamiento en pacientes con insuficiencia renal crónica terminal / Perceived quality of life and adherence to treatment in patients with end-stage chronic renal disease / Qualidade de vida percebida e adesão ao tratamento em pacientes com doença renal crônica em estágio terminal

RESUMEN Introducción: La insuficiencia renal crónica terminal constituye uno de los problemas de salud más complejos por las afectaciones que provoca a la calidad de vida de los pacientes y por las dificultades que entraña la adherencia del paciente al tratamiento. Objetivo: Identificar la relación entre la calidad de vida percibida y la adherencia al tratamiento de los pacientes portadores de insuficiencia renal crónica terminal que reciben hemodiálisis. Método: Estudio de tipo correlacional realizado en el servicio de Hemodiálisis del Hospital General Docente "Juan B. Viñas González" de Palma Soriano, Santiago de Cuba. Del universo de 32 pacientes se trabajó con la población constituida por 16 pacientes que cumplieron con los criterios de inclusión/exclusión. Las técnicas utilizadas fueron: cuestionario de calidad de vida de la OMS, revisión de documentos, entrevistas y la observación. Se realizó análisis estadístico descriptivo (análisis de frecuencias) y se aplicó el método no paramétrico de correlación de Spearman. Resultados: Más de la mitad (56,25 %) de la población reflejó una calidad de vida percibida regular, el 25 % buena y el 18,75 % mala. La dimensión de salud física se mostró dentro de las más afectadas, observándose una valoración negativa con respecto a la enfermedad, pues más del 85 % de los encuestados la consideró como grave o muy grave. Se apreciaron afectaciones al sueño, donde más del 60 % de los pacientes se sintió insatisfecho con este aspecto. Los síntomas de la enfermedad son valorados, por la mayoría (81,25 %) como severos o muy severos. Conclusiones: Los pacientes poseen adherencia media al tratamiento y una calidad de vida percibida regular, y existe correlación fuerte y directa entre la adherencia al tratamiento y la calidad de vida percibida.

ABSTRACT Introduction: The end-stage chronic renal disease, due to how it affects the patient´s quality of life and the difficulties involved in the adherence of patient to treatment, is one of the most complex health problems. Objective: To identify the relationship between perceived quality of life and adherence to treatment in patients with end-stage chronic renal disease receiving hemodialysis. Method: A correlative study was conducted in the hemodialysis service room at the Hospital General Docente "Juan B. Viñas González" in Palma Soriano, Santiago de Cuba. The universe studied included 32 patients and 16 (met inclusion/exclusion criteria) were selected to work with. The techniques used were: World Health Organization quality of life questionnaire, document review, interviews and observation. A descriptive statistical analysis was performed (frequency analysis) and the nonparametric method applied was the Spearman's correlation coefficient using the SPSS 19.0 data processing program. Results: More than half of the population (56.25%) reported a fair quality of life, good (25%), and bad (18.75%). The physical health dimension was one of the most affected and it was found a negative assess of the disease in which more than 85% of those polled considered it as serious or very serious. Some sleep disorders was found and more than 60% of patients were unsatisfied related this issue. Most of the patients (81.25%) characterized the disease symptoms as severe or very severe. Conclusions: Patients studied had an adherence to treatment in a medium level and a perceived fair quality of life. There is also a correlation between the patient adherences to treatment and perceived quality of life.

RESUMO Introdução: A insuficiência renal crônica terminal constitui um dos problemas de saúde mais complexos pelos efeitos que causa na qualidade de vida dos pacientes e pelas dificuldades que a adesão do paciente ao tratamento acarreta. Objetivo: Identificar a relação entre a percepção de qualidade de vida e a adesão ao tratamento em pacientes com doença renal terminal em hemodiálise. Método: Estudo do tipo correlacional realizado no serviço de Hemodiálise do Hospital Geral de Ensino "Juan B. Viñas González" em Palma Soriano, Santiago de Cuba. Do universo de 32 pacientes, trabalhamos com a população composta por 16 pacientes que atenderam aos critérios de inclusão / exclusão. As técnicas utilizadas foram: questionário de qualidade de vida da Organização Mundial da Saúde, revisão documental, entrevistas e observação. Foi realizada análise estatística descritiva (análise de frequência) e aplicado o método não paramétrico. Resultados: Mais da metade (56,25%) da população apresentou percepção de qualidade de vida regular, 25% boa e 18,75% ruim. A dimensão saúde física esteve entre as mais afetadas, com avaliação negativa em relação à doença, uma vez que mais de 85% dos inquiridos a consideraram grave ou muito grave. Além disso, foram notados distúrbios do sono, onde mais de 60% dos pacientes se sentiram insatisfeitos com esse aspecto. Os sintomas da doença são avaliados, pela maioria (81,25%), como graves ou muito graves. Conclusões: Os pacientes apresentam média de adesão ao tratamento e percepção de qualidade de vida regular, havendo forte e direta correlação entre adesão ao tratamento e percepção de qualidade de vida.

Factors Associated with Functional Capacity in CKD Patients.

To evaluate the factors associated with functional capacity in patients with chronic kidney disease (CKD). All patients were submitted to six-minute walk test (6MWT), 10-repetition sit-to-stand test (STS-10) and SF-36 health-related quality of life questionnaire (HRQoL). Patients with functional capacity ≥80% exhibited higher education level, family income, body mass index, estimated glomerular filtration rate, and lower age and STS-10 time. Multiple linear regression showed that gender, age, family income, chronic kidney disease stage, STS-10 time, and physical component summary of HRQoL were significantly associated with the 6MWT distance. Functional capacity was significantly associated with gender, age, family income, CKD stage, STS-10 time, and physical component of HRQoL. The progression of CKD has an impact on the decrease in functional capacity in these patients.

Down-regulation of LINC00667 hinders renal tubular epithelial cell apoptosis and fibrosis through miR-34c.

PURPOSE: This study aimed to down-regulate LINC00667 and inhibit apoptosis and fibrosis of renal tubular epithelial cells through miR-34c. METHODS: Altogether, 98 patients with chronic kidney disease treated in our hospital were selected as the study group, and 67 normal people were selected as the control group. Epithelial cells of proximal convoluted tubules in human renal cortex were purchased. TGF-ß1 was used to induce fibrosis of HK-2 renal tubular epithelial cells. The expression of LINC00667, miR-34c, type I collagen (Col 1) and type III collagen (Col 3) were detected by qRT-PCR and WB. RESULTS: LINC00667 was highly expressed in cancer tissues and HK-2, while miR-34c was poorly expressed. Inhibition of LINC00667 and over-expression of miR-34c could inhibit the proliferation and invasion of chronic kidney disease cells, but increase the apoptosis rate. Down-regulation of LINC00667 could significantly reduce of Col 1 and Col 3 in renal interstitial fibroblasts induced by TGF-ß1, while up-regulation of miR-34c could also achieve this effect. Double luciferase report confirmed that there was a targeted regulatory relationship between LINC00667 and miR-34c. CONCLUSION: LINC00667 could reduce the proliferation and invasion of chronic kidney disease cells, increase the apoptosis rate by regulating miR-34c, and improve renal fibrosis.

Associação entre força de preensão manual e indicadores nutricionais em pacientes em tratamento hemodialítico / Association between handgrip strength and nutritional indicators in patients undergoing hemodialysis

Objetivo: Verificar a associação entre a força de preensão manual (FPM) e indicadores nutricionais em pacientes em tratamento hemodialítico do Oeste da Bahia. Métodos: Trata-se de um estudo transversal, realizado com pacientes adultos e idosos, cadastrados em uma unidade de hemodiálise do Oeste da Bahia. Foi aplicado questionário estruturado com questões referentes às condições sociodemográficas e realizada análise das variáveis antropométricas, de composição corporal, clínicas e bioquímicas. A FPM foi medida do lado não fistuloso com um dinamômetro hidráulico da marca SAEHAN® (Saehan corporation ­ SH5001). A análise dos dados foi realizada com o auxílio do software Stata 13.1. Resultados: Foram avaliados 113 pacientes, com predominância do sexo masculino (60,55%) e faixa etária de 35 a 59 anos (57,52%). Foram encontradas associações positivas entre a altura e a FPM, sendo que quanto maior a altura, maior é a força (p = 0,020). O maior peso corporal após sessão de hemodiálise também se apresentou associado à maior FPM (p = 0,002). A medida da prega cutânea tricipital mostrou associação inversa (p = 0,007) e o ângulo de fase foi positivamente associado à FPM (p = 0,018). Conclusão: A força de preensão manual foi associada positivamente a altura, peso corporal após sessão de hemodiálise e ângulo de fase. Em contrapartida, a FPM associou-se negativamente à prega cutânea tricipital. (AU)

Objective: To assess the association between handgrip strength (HGS) and nutritional indicators in patients undergoing hemodialysis in western Bahia State, Brazil. Methods: This is a cross-sectional study conducted with adult and elderly patients attending a hemodialysis unit in western Bahia. A structured questionnaire containing sociodemographic questions was administered, and anthropometric, body composition, clinical, and biochemical variables were analyzed. HGS was measured on the non-fistula side using a Saehan® hydraulic dynamometer. Data analysis was performed using Stata version 13.1. Results: A total of 113 patients were evaluated, most of whom were male (60.55%) and aged between 35 and 59 years (57.52%). Positive associations were found between height and HGS; the higher the patient height, the higher the HGS (p = 0.020). Higher post-dialysis body weight was also associated with higher HGS (p = 0.002). Triceps skinfold thickness was inversely associated (p = 0.007) with HGS, whereas phase angle showed a positive association (p = 0.018). Conclusion: HGS was positively associated with height, post-dialysis body weight, and phase angle but negatively associated with triceps skinfold thickness. (AU)

Antifungal susceptibility of oral isolates of Candida species from chronic kidney disease patients on chronic dialysis.

Chronic renal disease patients under chronic dialysis (CRDD) have a multifactorial immunological deterioration with an increased risk of Candida infections. Incidence of Candida infections is increasing. Choice of suitable antifungal agents is limited due to the resistance of some species to several antifungals. Aim of the present study was to identify the distribution and antifungal susceptibility patterns of oral isolated Candida species from infected and colonized patients, as well as to investigate the risk factors for oral infection in patients on dialysis. Cross-sectional study, approved by the institutional bioethics committees was performed in CRDD patients. Demographic, clinic data, and oral mucosa samples were obtained. Infection diagnosis was established clinically and confirmed with exfoliative cytology, each sample was plated on CHROMagar Candida and incubated at 36°C for 2 days. Yeast species were identified by carbohydrate assimilation ID 32C AUX system and the apiweb database. For the antifungal susceptibility test, the M44 A-3 method (CLSI) using fluconazole (FCZ), miconazole (MCZ), nystatin (NYS), and voriconazole (VCZ). Study included 119 participants, the main cause of CRD was nephropathy due to DM2 (58%), and three-fourths of the patients were under hemodialysis. Candida prevalence was 56.3% of 67 colonized or infected patients, 88 isolates were obtained. Principal identified species were C. albicans (51.1%), C. glabrata (25%), and C. tropicalis (14.8%). C. glabrata showed a reduced response to FCZ in 50% of isolates and C. albicans had a reduced response in 16% of the isolates. Antifungal agent with the least efficacious response or with the lowest susceptibility in the isolates of these patients was MCZ, followed by VCZ and FCZ, whereas NYS induced the best antifungal response.

Estado Nutricional e Indicadores de Estrés Oxidativo entre pacientes con enfermedad renal en etapa terminal. Tratado ambulatorio continuo con dialisis Peritoneal / Nutritional Status and Indicators of Oxidative Stress among End-Stage Renal Disease Patients Treated with Continuous Ambulatory Peritoneal Dialysis

Background: The objective of the study was to determine the oxidative stress (OS) intensity depending on the nutritional status (NS) among end-stage renal disease patients treated with continuous ambulatory peritoneal dialysis (CAPD) and to investigate the effectiveness of medical strategies for the correction of nutritional disorders (ND). Methods: 69 end-stage renal disease patients treated with CAPD were examined who had varying degrees of ND. General clinical, biochemical parameters, OS markers were identified. Basing on the obtained data, the level of OS markers was determined in groups of patients with different NS. Subsequently, patients with moderate and severe ND were randomly assigned to two groups. The first group (n=20) included patients who received in complex treatment additionally to traditional treatment of CAPD Levocarnitine and one exchange per day of intraperitoneal fluid with amino acids. The second group consisted of patients (n=20) who received instead of one Dianeal fluid intraperitoneal fluid with amino acids. Results: OS indicators were increased in all four groups of patients with different NS, but they were the highest among patients with moderate and severe malnutrition. After the treatment the patients of the first study group had a statistically significant decrease in the MDA content, both in blood serum and erythrocytes (p<0.005). At the same time, the analysis of the informative markers dynamics for antioxidant oxidative stress (AOS) of blood serum allowed to register a statistically credible increase in their mean values among patients after treatment (p<0.05). It should be emphasized that no statistically significant effect of Levocarnitine on the anthropometric parameters of nutritional status and serum albumin level was obtained. However, after the therapy in the study group the values of SGA and protein consumption with food increased (p<0.05). At the same time, the patients from second study group had no positive effect on the reduction of oxidative stress, except for the level of transferrin (p<0.05) and contributes to the increase of serum albumin level (p<0.05).

Hyperkalemia in chronic kidney disease

SUMMARY Hyperkalemia is a frequent finding in patients with chronic kidney disease (CKD). This increase in serum potassium levels is associated with decreased renal ion excretion, as well as the use of medications to reduce the progression of CKD or to control associated diseases such as diabetes mellitus and heart failure. Hyperkalemia increases the risk of cardiac arrhythmia episodes and sudden death. Thus, the control of potassium elevation is essential for reducing the mortality rate in this population. Initially, the management of hyperkalemia includes orientation of low potassium diets and monitoring of patients' adherence to this procedure. It is also important to know the medications in use and the presence of comorbidities to guide dose reduction or even temporary withdrawal of any of the potassium retention-related drugs. And finally, the use of potassium binders is indicated in both acute episodes and chronic hyperkalemia.

RESUMO A hiperpotassemia é um achado frequente em pacientes com doença renal crônica (DRC). Esta elevação do nível sérico de potássio está associada à diminuição da excreção renal do íon, assim como ao uso de medicações para retardar a progressão da DRC ou para controlar doenças associadas, como diabetes mellitus e insuficiência cardíaca. A hiperpotassemia aumenta o risco de episódios de arritmia cardíaca e morte súbita. Assim, o controle da elevação de potássio é essencial para a diminuição da taxa de mortalidade nessa população. O manejo da hiperpotassemia inclui, inicialmente, orientação de dietas com baixo teor de potássio e acompanhamento da aderência dos pacientes a esse procedimento. Também é importante conhecer as medicações em uso e a presença de comorbidades, a fim de orientar a redução de doses ou até mesmo a suspensão temporária de alguma das drogas relacionadas à retenção de potássio. E, finalmente, o uso de quelantes de potássio é indicado tanto em episódios agudos como nos casos de hiperpotassemia crônica.

Autoavaliação da saúde de indivíduos com doença renal crônica em terapia dialítica / Health self-assessment by individuals with chronic kidney disease in dialysis therapy / Autoevaluación de la salud de individuos con enfermedad renal crónica en terapia dialítica

Objetivo: analisar a autopercepção de saúde e os fatores associados dos indivíduos com doença renal crônica em terapia dialítica. Método: estudo transversal, quantitativo, com 42 pacientes assistidos na unidade de nefrologia de um hospital público em Recife/PE, no período de maio a agosto de 2016. Os dados foram coletados por meio de entrevista semiestruturada, analisados por estatística descritiva e inferencial, após aprovação do Comitê de Ética em Pesquisa. Resultados: a autoavaliação de saúde ruim esteve presente em 29 (69%) pacientes, porém sem associação com as características sociodemográficas e clínicas (p<0,05). Conclusão: a alta prevalência da autoavaliação de saúde ruim reflete a necessidade de informações educativas e autocuidado para uma melhor compreensão do estado de saúde e consequente adesão terapêutica.

Objective: to examine health self-perception and associated factors in individuals with chronic kidney disease in dialysis therapy. Method: in this quantitative, cross-sectional study of 42 patients attending the nephrology unit of a public hospital in Recife, Pernambuco, from May to August 2016, data were collected by semistructured interview and analyzed by descriptive and inferential statistics, after approval by the research ethics committee. Results: 29 patients (69%) self-assessed their health as poor, but no association was found with sociodemographic and clinical characteristics (p<0.05). Conclusion: the high prevalence of self-assessed poor health reflects the need for educational information and self-care for a better understanding of health status and consequent adherence to therapy.

Objetivo: analizar la autopercepción de salud y los factores asociados de los individuos con enfermedad renal crónica en terapia dialítica. Método: estudio transversal, cuantitativo, junto a 42 pacientes asistidos en la unidad de nefrología de un hospital público en Recife/Pernambuco, en el período de mayo a agosto de 2016. Los datos fueron recolectados por medio de entrevista semiestructurada, analizados por estadística descriptiva e inferencial, después de la aprobación del Comité de Ética en Investigación.Resultados: la autoevaluación de mala salud estuvo presente en 29 (69%) pacientes, pero sin asociación con las características sociodemográficas y clínicas (p <0,05). Conclusión: la alta prevalencia de la autoevaluación de mala salud refleja la necesidad de informaciones educativas y autocuidado para una mejor comprensión del estado de salud y consecuente adhesión terapéutica

Estimación de la tasa de filtración glomerular en adultos mayores mediante las ecuaciones CKD-EPI / Estimate of the glomerular filtration rate in aged adults through the CKD-EPI equations

Introducción: La tasa de filtración glomerular se considera el mejor índice para evaluar la función renal, ya que su reducción aparece mucho antes que cualquier manifestación clínica derivada de la disfunción renal. Métodos: Se realizó un estudio observacional, descriptivo y transversal de 92 pacientes sin enfermedad renal y con esta, atendidos en el Hospital General Docente Dr. Juan Bruno Zayas Alfonso de Santiago de Cuba, de febrero a noviembre de 2017, a fin de evaluar las ecuaciones insuficiencia renal crónica-colaboración epidemiológica (CKD-EPI) para estimar el filtrado glomerular en adultos mayores. Resultados: Se halló menor promedio de filtrado con orina de 24 horas en el grupo sin nefropatía (64,8 mL/min) y mayor en el grupo de nefrópatas (25,8 mL/min) respecto a dichas ecuaciones. Aunque no hubo diferencias significativas en el filtrado según edad, sexo y peso corporal, en ambos grupos al emplear CKD-EPI, los valores mayores se obtuvieron con CKD-EPI cistatina C. Conclusiones: En los ancianos sin marcadores de daño renal la utilización de las fórmulas CKD-EPI con cistatina permite una mejor estimación de la función renal.

Introduction: The glomerular filtration rate is considered the best index to evaluate the renal function, since its reduction is evidenced much time before any clinical manifestation which derives from the renal failure. Methods: A descriptive, cross-sectional and observational study of 92 patients without and with renal disease, assisted in Dr. Juan Bruno Zayas Alfonso Teaching General Hospital in Santiago de Cuba, from February to November, 2017, was carried out in order to estimate glomerular filtrate in older adults by means of the CKD-EPI equations. Results: Lower average filtrate with 24 hours urine was found in the group without nefropathy (64.8 mL/min) and it was higher in the kidney disease group (25.8 mL/min) regarding these equations. Although in both groups there were no significant differences in the filtrate according to age, sex and corporal weight, when using the equations CKD-EPI, the higher values were obtained with CKD-EPI cystatine C. Conclusions: The use of the formulas CKD-EPI with cystatine allows a better estimate of the renal function in aged patients without markers of renal damage.

Asociación entre Preeclampsia y Enfermedad Renal Crónica / Association between Preeclampsia and Chronic Kidney Disease

RESUMEN Introducción: La prevalencia de preeclampsia es 2 a 8%, escenario que puede suponer el inicio de alteraciones vasculares y metabólicas futuras, entre ellas, enfermedad renal crónica. Objetivo: Determinar la preeclampsia como factor asociado a enfermedad renal crónica. Material y métodos: Estudio de casos y control en mujeres con antecedente de embarazo. El tamaño de muestra fue de 60 casos y 40 controles. El grupo de casos lo integraron pacientes con enfermedad renal crónica (tasa de filtrado glomerular menor a 60 ml/min/1.73m2, fórmula CKD-EPI), el grupo de control conformado por pacientes sin enfermedad renal crónica. El diagnóstico de preeclampsia se determinó por el antecedente médico. El análisis estadístico incluyó prueba de Chi-cuadrado (X2), razón de momios, regresión logística y cálculo de probabilidad de ocurrencia del evento. Resultados: En pacientes con enfermedad renal crónica el 80% refiere antecedente de preeclampsia, y en pacientes sin enfermedad renal crónica el 35% también tiene este antecedente (p=0.00). El tiempo de evolución entre el antecedente de preeclampsia y el diagnóstico de enfermedad renal crónica es 7.50 años (IC 95%; 7.10-7.89). El modelo que mejor explica la enfermedad renal crónica incluye la preeclampsia y la edad del paciente (p=0.000), y = -3.444 + 1.794 (antecedente de preeclampsia) + 0.082 (edad del paciente). Si existe antecedente de preeclampsia y la edad del paciente es 35 años, la probabilidad de enfermedad renal crónica es 0.7721. Conclusión: La preeclampsia es un factor asociado a enfermedad renal crónica.

ABSTRACT Introduction: With a prevalence of 2-8%, preeclampsia constitutes a scenario that may imply the beginning of future vascular and metabolic alterations, among which we could mention chronic kidney disease. Objective: To establish preeclampsia as a factor associated with chronic kidney disease. Methods: Case-control study covering women who had been pregnant. The population sample included 60 subjects in the case group and 40 in the control group. The case group included patients with chronic kidney disease (glomerular filtration rate lower than 60 ml/min/1.73m2, CKD-EPI formula); the control group included patients who did not suffer from chronic kidney disease. Preeclampsia diagnosis was established according to medical history. The statistical analysis comprised the chi-squared test (X2), odds ratio, logistic regression and event occurrence probability. Results: Among the chronic kidney disease patients, 80% reported a history of preeclampsia; 35% of subjects who did not suffer from chronic kidney disease also had a similar history (p=0.00). The time of evolution between preeclampsia and the diagnosis of chronic kidney disease was 7.5 years (95% CI: 7.10-7.89). The model which best explains chronic kidney disease includes preeclampsia and patient's age (p=0.000), y=-3.444 + 1.794 (history of preeclampsia) + 0.082 (patient's age). If the patient is 35 years old and has a history of preeclampsia, the probability of chronic kidney disease is 0.7721. Conclusion: Preeclampsia is a factor associated with chronic kidney disease.

Utilidad de la cistatina C como biomarcador precoz de daño renal en pacientes con diabetes mellitus de tipo 2 / Use of Cystatin C as early biomarker of renal damage in patients with diabetes mellitus type 2

Se llevó a cabo un estudio observacional, descriptivo, de serie de casos, en 144 pacientes con diabetes mellitus de tipo 2, atendidos en el Laboratorio Clínico del Hospital Provincial Clinicoquirúrgico Docente Saturnino Lora Torres de Santiago de Cuba, de mayo de 2017 a igual de 2018, procedentes de la consulta de Endocrinología del propio hospital, con vistas a evaluar la utilidad de la cistatina C como biomarcador precoz de daño renal. En la investigación predominaron los pacientes de más de 50 años de edad y del sexo femenino, además de la hipertensión arterial como enfermedad asociada y la neuropatía periférica como complicación. Se concluyó que la cistatina C es útil como biomarcador precoz de daño renal en pacientes con diabetes mellitus de tipo 2, fundamentalmente si existen comorbilidades y complicaciones que pudieran conducir a la enfermedad renal crónica, lo que puede prevenirse.

An observational, descriptive series of cases study, was carried out in 144 patients with diabetes mellitus type 2, assisted in the Clinical Laboratory of Saturnino Lora Torres Teaching Provincial Hospital in Santiago de Cuba from May, 2017 to the same month of 2018, who were from the Endocrinology Service of the same hospital, with the aim of evaluating the utility of the Cystatin C as early biomarker of renal damage. Patients older than 50 years of age and female sex, besides hypertension as associated disease and the outlying neuropathy as complication prevailed in the investigation. It was concluded that Cystatin C is useful as early biomarker of renal damage in patients with diabetes mellitus type 2, fundamentally if there are comorbidities and complications that could cause chronic renal failure, which can be prevented.

Envolvimento da pessoa com doença renal crônica em seus cuidados: revisão integrativa / Engaging people with chronic kidney disease in their own care an integrative review

Resumo A doença renal crônica (DRC) acarreta ao indivíduo uma sobrecarga de cuidados indispensáveis ao alcance das metas terapêuticas e qualidade de vida. O controle nutricional, o regime medicamentoso e as terapias de substituição renal são exemplos que requerem participação ativa. Assim, foi realizada revisão integrativa de artigos científicos para identificar os que versam sobre envolvimento e participação do paciente em seus cuidados na DRC. Os descritores "Chronic kidney disease"; "Self-Care" and "Patient Participation" foram aplicados nas bases CINHAL, Bireme e Medline. Selecionamos 21 publicações entre 2012 e 2016. A entrevista semiestruturada destacou-se como método de coleta de dados, com a aplicação da análise temática fenomenológica. Conforme a predominância do assunto tratado, os manuscritos foram alocados em quatro eixos temáticos: Manejo da doença renal e seu tratamento; Envolvimento na tomada de decisão; Plano avançado de cuidados; e, Diálise peritoneal domiciliar. Verificamos que abordagens envolvendo pessoas transplantadas ou nos primeiros estágios da doença são pouco explorados com a aplicação do método qualitativo e, ainda, consideramos que pessoas com DRC devem ser instigadas no envolvimento ativo de seus próprios cuidados, necessitando de conhecimento, motivação e suporte dos profissionais de saúde.

Abstract The treatment of chronic kidney disease (CKD) places a major burden on patients and their families. Interventions such as nutritional management, medication regimen, and renal replacement therapies require active patient participation. An integrative literature review was carried out to identify articles on the engagement and participation of people with CKD in their care. The Medical Subject Headings (MeSH) "Kidney Failure, Chronic", "Self Care", and "Patient Participation" were used to conduct a search on the following databases: Cumulative Index to Nursing and Allied Health Literature (CINAHL), the U.S. National Library of Medicine® (Medline/PubMed), Biblioteca Virtual em Saúde (Bireme). A total of 21 articles published between 2012 and 2016 were selected. The most commonly used data collection and analysis techniques were semi-structured interviews and phenomenological thematic analysis, respectively. The articles were categorized into the following thematic groups: illness management and treatment; involvement in the decision-making process; advanced care plan; and home peritoneal dialysis. We found that there is a lack of qualitative research in certain areas, namely kidney transplant recipients and people with initial stages of CKD. People with CKD should be encouraged to actively engage in their own care, which in turn requires the knowledge, motivation and support of health professionals.

Función renal en pacientes ambulatorios con insuficiencia cardíaca con fracción de eyección reducida; análisis de su evolución e implicancia pronóstica. Seguimiento a 4 años en una Unidad Multidisciplinaria de Insuficiencia Cardíaca / Renal function in outpatients with heart failure with reduced ejection fraction; analysis of its evolution and forecast implications. A 4 year follow up in a Multidisciplinary Unit of Heart Failure / Função renal em pacientes ambulatoriais com insuficiência cardíaca com fração de ejeção reduzida; análise de sua evolução e implicações prognósticas. Acompanhamento de até 4 anos em uma Unidade Multidisciplinar de Insuficiência Cardíaca

Resumen: Introducción: El deterioro de la función renal está asociado a un aumento de la mortalidad en los pacientes con insuficiencia cardíaca (IC). El objetivo de este estudio fue evaluar si la progresión de la enfermedad renal en pacientes estables portadores de IC con fracción de eyección reducida (ICFEr) y enfermedad renal crónica (ERC) se asocia a eventos cardiovasculares (ECV), hospitalización por IC y muerte. Metodología: Estudio de cohorte de seguimiento a 4 años, con análisis en dos etapas: tiempo 1 (inicio del estudio); y tiempo 2 (fin del estudio o muerte). Se definió ICFEr estable como IC con una fracción de eyección del ventrículo izquierdo (FEVI)<40% sin elementos de descompensación. Se definió ERC con la presencia de un filtrado glomerular estimado (FGe) < 60 ml/min/1,73 y ERC estable en ausencia de fracaso renal agudo. Resultados: Se incluyeron 94 pacientes con media de seguimiento de 37,2 meses; la edad media fue 69,5 años, 71.3% de sexo masculino. La cardiomiopatía era isquémica en 48% y la nefropatía vascular fue la predominante (62%). Se diagnosticó síndrome cardio-renal tipo 2 en 76 (81%) pacientes. Se evidenció descenso significativo del FGe entre los tiempos de análisis (tiempo 1: 45 ± 10 ml/min.; tiempo 2: 38 ± 15 ml/min.; p < 0,001) y 50% de los pacientes tuvieron peoría del estadio de ERC (p = 0,027). Se halló asociación entre progresión de la ERC con mayor frecuencia de ECV (P=0,002), ingresos por IC (OR 3,3;IC95% 1,9-11,2; p = 0.044) y muerte cardiovascular (OR 10,9;IC95% 2,9-40,1; p < 0.001). Conclusiones: La progresión de la ERC en pacientes con ICFEr ambulatorios se asocia a un peor pronóstico en términos de mortalidad cardiovascular, ingresos por IC y ECV.

Abstract: Introduction: Deterioration of renal function is associated with increased mortality in patients with heart failure (HF). The objective of the present study was to assess whether the progression of kidney disease is associated with the appearance of cardiovascular events (CVE), hospitalization for HF and death in a cohort of stable outpatients with chronic kidney disease (CKD) and Heart failure with reduced ejection fraction (HFrEF). Methodology: A 4 years follow-up cohort study, with a two stage analysis: time 1 (start of the study); and time 2 (end of study or death). Stable HFrEF was defined as HF with an ejection fraction of the left ventricle (LVEF)<40% without elements of decompensation. An estimated glomerular filtration less than 60 ml / min / 1.73 was used as diagnostic criterion for CKD and stable CKD in the absence of acute renal failure. Results: A total of 94 patients were included with a follow up mean of 37.2 months; the mean age was 69.5 years ± 9 years, 71.3% were male. Cardiomyopathy was ischemic in 48% and vascular nephropathy was predominant (62%). Cardio-renal syndrome type 2 was diagnosed in 76 (81%) patients. There was a significant decrease in eGFR between the time of analysis (time 1: 45 ± 10 ml/min, time 2: 38 ± 15 ml/min, p <0.001) and 50% of patients worsened their stage of CKD (p = 0.027). An association was found between progression of CKD with a higher frequency of CVD (P = 0.002), hospitalization for HF (OR 3.3, 95% CI 1.9-11.2, p = 0.044) and cardiovascular death (OR 10.9, 95% CI 2.9-40.1, p <0.001). Conclusions: The progression of CKD is associated with a worse prognosis in not hospitalized HF patients in terms of cardiovascular mortality, admissions for HF and CVE.

Resumo: Introdução: A deterioração da função renal está associada ao aumento da mortalidade em pacientes com insuficiência cardíaca (IC). O objectivo deste estudo foi avaliar se a progressão da doença renal em pacientes com IC estáveis ​​com fracção de ejecção reduzida (ICFER) e doença renal crónica (IRC) está associada com eventos cardiovasculares (DCV), HF hospitalização e morte. Metodologia: Estudo de coorte de acompanhamento aos 4 anos, com análise em duas etapas: tempo 1 (início do estudo); e tempo 2 (fim do estudo ou morte). O rEFFE estável foi definido como IC com fração de ejeção do ventrículo esquerdo (FEVE) <40% sem elementos de descompensação. DRC foi definida na presença de uma taxa de filtração glomerular estimada (EGFR) <60 ml / min / 1,73 CEI e estável na ausência de insuficiência renal aguda. Resultados: Foram incluídos 94 pacientes com seguimento médio de 37,2 meses; a idade média foi de 69,5 anos, 71,3% do sexo masculino. A cardiomiopatia era isquêmica em 48% e a nefropatia vascular era predominante (62%). Síndrome Cardio-renal tipo 2 foi diagnosticada em 76 (81%) pacientes. diminuição significativa da taxa de filtração glomerular entre os tempos de verificação (45 ± 10 ml / min; cerca de 2 cerca de 1 38 ± 15 ml / min; p <0,001) foi evidenciado e 50% dos pacientes tiveram a fase de Peoria DRC (p = 0,027). e morte cardiovascular (OU 10,9 associação entre a progressão DRC de DCV com maior frequência (P = 0,002), o rendimento de IC (OR 3.3, 95 % CI 1.9-11.2 p = 0,044), verificou-se IC 95% 2,9-40,1, p <0,001). Conclusões: A progressão da DRC em pacientes com HFrR ambulatorial está associada a um pior prognóstico em termos de mortalidade cardiovascular, IC e DCV