Occupational risks associated with chronic kidney disease of non-traditional origin (CKDnt) in Brazil: it is time to dig deeper into a neglected problem / Riscos ocupacionais associados à doença renal crônica de origem não tradicional (DRCnt) no Brasil: é hora de nos aprofundarmos em um problema negligenciado

Abstract In the past decades, an epidemic of chronic kidney disease (CKD) has been associated with environmental and occupational factors (heat stress from high workloads in hot temperatures and exposure to chemicals, such as pesticides and metals), which has been termed CKD of non-traditional origin (CKDnt). This descriptive review aims to present recent evidence about heat stress, pesticides, and metals as possible causes of CKDnt and provide an overview of the related Brazilian regulation, enforcement, and health surveillance strategies. Brazilian workers are commonly exposed to extreme heat conditions and other CKDnt risk factors, including increasing exposure to pesticides and metals. Furthermore, there is a lack of adequate regulation (and enforcement), public policies, and strategies to protect the kidney health of workers, considering the main risk factors. CKDnt is likely to be a significant cause of CKD in Brazil, since CKD's etiology is unknown in many patients and several conditions for its development are present in the country. Further epidemiological studies may be conducted to explore causal associations and estimate the impact of heat, pesticides, and metals on CKDnt in Brazil. Moreover, public policies should prioritize reducing workers´ exposure and promoting their health and safety.

Resumo Nas últimas décadas, uma epidemia de doença renal crônica (DRC) tem sido associada a fatores ambientais e ocupacionais (estresse térmico decorrente de cargas de trabalho elevadas em altas temperaturas e exposição a produtos químicos, como agrotóxicos e metais), denominada DRC de origem não tradicional (DRCnt). Esta revisão descritiva tem como objetivo apresentar evidências recentes sobre estresse térmico, agrotóxicos e metais como possíveis causas de DRCnt e fornecer uma visão geral das estratégias brasileiras de regulamentação, fiscalização e vigilância sanitária relacionadas. Os trabalhadores brasileiros são comumente expostos a condições extremas de calor e outros fatores de risco de DRCnt, incluindo o aumento da exposição a agrotóxicos e metais. Além disso, há uma falta de regulamentação e fiscalização, políticas públicas e estratégias adequadas para proteger a saúde renal dos trabalhadores em relação aos principais fatores de risco. É provável que a DRCnt seja uma causa significativa de DRC no Brasil, uma vez que a etiologia da doença é desconhecida em muitos pacientes e diversas condições para seu desenvolvimento estão presentes no país. Estudos epidemiológicos devem ser realizados para explorar associações causais e estimar o impacto do calor, dos agrotóxicos e dos metais na DRCnt no Brasil. Além disso, as políticas públicas devem priorizar a redução da exposição dos trabalhadores e a promoção de sua saúde e segurança.

Caracterización del paciente diabético como antecedente para una intervención educativa / Characterization of diabetic patients as a background for an educational intervention

Introducción: La diabetes mellitus es una enfermedad no transmisible con una elevada comorbilidad, sobre todo, vinculada a la enfermedad renal crónica. La caracterización del paciente diabético, según variables epidemiológicas y los conocimientos de la enfermedad renal crónica que presentan, deben preceder a la valoración clínica y a la intervención educativa dirigida a modificar estilos de vida como parte de la atención primaria de salud. Objetivos: Caracterizar a pacientes diabéticos del Policlínico Santa Clara, según variables epidemiológicas seleccionadas, y la comorbilidad vinculada con la enfermedad renal crónica. Métodos: Se realizó un estudio descriptivo-exploratorio a los pacientes diabéticos en el consultorio médico de la familia 16-11 del Policlínico Santa Clara, de octubre del 2019 a junio del 2022. La población estuvo conformada por 79 pacientes diabéticos y la muestra por 60, según criterios de inclusión y exclusión. Se utilizaron técnicas de análisis estadístico: análisis de frecuencias simples, estadística descriptiva y la prueba de independencia de Chi cuadrado. Resultados: Predominó el sexo masculino; grupo etario de 55-59; diabetes mellitus tipo 2 y cifras elevadas de tensión arterial correlacionadas con la diabetes. Además, existió un nivel bajo de conocimientos acerca de las enfermedades renales crónicas. Conclusiones: Los resultados obtenidos permiten confirmar la relevancia de este tipo de estudios para elevar el nivel de conocimientos sobre la relación entre el padecimiento de diabetes mellitus y la enfermedad renal crónica, para contribuir a mejorar la calidad de vida de este grupo poblacional a través de una intervención educativa previamente orientada.

Introduction: diabetes mellitus is a non-communicable disease with high comorbidity and especially linked to chronic kidney disease. Characterization of diabetic patients according to epidemiological variables and knowledge of their chronic kidney disease must precede the clinical assessment and educational intervention aimed at modifying lifestyles as part of primary health care. Objectives: to characterize diabetic patients from Santa Clara Polyclinic according to selected epidemiological variables as well as the comorbidity linked to chronic kidney disease. Methods: a descriptive exploratory study was carried out on diabetic patients belonged to the 16-11 doctor's office in Santa Clara Polyclinic from October 2019 to June 2022. The population was made up of 79 diabetic patients and 60 formed the sample according to inclusion and exclusion criteria. Statistical analysis techniques such as descriptive statistics, simple frequency analysis and the Chi- square independence test were used. Results: males, age group 55-59 years, type 2 diabetes mellitus and high blood pressure levels correlated with diabetes predominated. Besides, a low level of knowledge on chronic kidney diseases was identified. Conclusions: the obtained results confirm the relevance of this type of studies to raise the level of knowledge on the relationship between diabetes mellitus and chronic kidney disease in order to contribute to the improvement of the quality of life of this population group through a previously oriented educational intervention.

Effect of Non-Surgical Periodontal Therapy on Chronic Kidney Disease Patients: A Systematic Review

Abstract Objective: To evaluate the effectiveness of "non-surgical periodontal therapy (NSPT)" on periodontal and renal parameters in periodontitis patients diagnosed with chronic kidney disease. Material and Methods: The review protocol has been registered in Prospero (CRD42020150938). Up to November 2019, we searched the PUBMED database without language constraints. We included randomized controlled (parallel-group or cross-over) trials with CKD and chronic periodontitis in adults aged 18 years and above. Three review authors independently assessed the studies. Three review writers gathered data and simultaneously assessed the risk of bias for individual trials using traditional Cochrane procedures. Results: Studies showed high variability. Three randomized clinical trials (RCT) were excluded because of high heterogeneity; meta-analysis could not be performed. Conclusion: Non-surgical periodontal therapy effectively improves periodontal and renal parameters. However, a meta-analysis could not be performed because of the high heterogeneity among the studies.

Cuantificación de la carga de la enfermedad renal crónica en América Latina: una epidemia invisibilizada / Quantification of the burden of chronic kidney disease in Latin America: an invisible epidemic / Quantificação da carga da doença renal crônica na América Latina: uma epidemia invisível

RESUMEN Objetivo. 1) Describir la carga de la enfermedad renal crónica en países de América Latina entre 1990 y 2019 y, 2) estimar la correlación entre los años de vida saludables perdidos (AVISA) con el índice sociodemográfico y el índice de acceso y calidad de salud. Métodos. Análisis secundario y ecológico, basado en el Estudio de la Carga Global de Enfermedades, Lesiones y Factores de Riesgo 2019. Se reportaron las tasas estandarizadas de mortalidad, años perdidos por muertes prematuras (APMP), años de vida ajustados por discapacidad (AVAD) y AVISA por enfermedad renal crónica para 1990, 2005 y 2019. La información se desagregó por países, sexo, grupos etarios y subcausas. Resultados. Entre 1990 y 2019, la carga de la enfermedad renal crónica aumentó considerablemente en los países de América Latina, convirtiéndose en una de las principales causas de mortalidad y de AVISA. La tasa estandarizada de AVISA por enfermedad renal crónica se debió, en gran medida, al peso de las muertes prematuras más que a la discapacidad. En 2019, Nicaragua, El Salvador, México y Guatemala se destacaron por tener las tasas estandarizadas de mortalidad por enfermedad renal crónica y de AVISA más elevadas, mientras que Uruguay presentó las más bajas. Conclusiones. La enfermedad renal crónica es una epidemia invisibilizada que representa una carga excesiva, en mortalidad y AVISA, para los países de América Latina. Es indispensable aunar esfuerzos regionales para enfrentar la enfermedad, además de impulsar acciones locales que atiendan las particularidades de cada país.

ABSTRACT Objective. 1) Describe the burden of chronic kidney disease in Latin American countries between 1990 and 2019; and 2) Estimate the correlation between disability-adjusted life years (DALYs) and the Sociodemographic Index and the Healthcare Access and Quality Index. Methods. Secondary and ecological analysis, based on the 2019 Global Burden of Diseases, Injuries and Risk Factors Study. Standardized mortality rates, years of life lost to due to premature death (YLLs),years of healthy life lost due to disability (YLDs) and DALYs due to chronic kidney disease were reported for 1990, 2005, and 2019. Information was disaggregated by country, sex, age group, and sub-cause. Results. Between 1990 and 2019, the burden of chronic kidney disease increased considerably in Latin American countries, becoming one of the main causes of mortality and DALYs. The standardized rate of DALYs for chronic kidney disease was largely due to the weight of premature deaths rather than disability. In 2019, Nicaragua, El Salvador, Mexico, and Guatemala had the highest standardized mortality rates for chronic kidney disease and DALYs, while Uruguay had the lowest. Conclusions. Chronic kidney disease is an invisible epidemic that places an excessive burden in terms of mortality and DALYs on Latin American countries. It is essential to join forces to tackle the disease in the region, and promote local actions that address the particularities of each country.

RESUMO Objetivo. 1) Descrever a carga da doença renal crônica nos países da América Latina entre 1990 e 2019 e 2) estimar a correlação entre os anos de vida saudável perdidos (AVISA), o índice sociodemográfico e o índice de acesso e qualidade da saúde. Métodos. Análise secundária e ecológica, baseada no estudo Carga Global de Doenças, Lesões e Fatores de Risco 2019 (GBD). Foram informadas taxas de mortalidade padronizadas, anos de vida perdidos por morte prematura (AVP) por morte prematura, anos de vida ajustados por incapacidade (AVAI) e AVISA devido a doença renal crônica de 1990, 2005 e 2019. Os dados foram desagregados por país, sexo, faixas etárias e causas subjacentes. Resultados. Entre 1990 e 2019, a carga de doença renal crônica aumentou consideravelmente nos países da América Latina, tornando-se uma das principais causas de mortalidade e de AVISA. A taxa padronizada de AVISA devido à doença renal crônica foi influenciada em grande parte pelo peso das mortes prematuras, e não da incapacidade. Em 2019, Nicarágua, El Salvador, México e Guatemala se destacaram por terem as maiores taxas padronizadas de mortalidade por doença renal crônica e AVISA, ao passo que Uruguai teve as menores taxas. Conclusões. A doença renal crônica é uma epidemia invisível, que representa uma carga excessiva em termos de mortalidade e de AVISA para os países da América Latina. É essencial unir esforços na região para combater a doença, além de promover ações locais que atendam às particularidades de cada país.

Effects of bariatric surgery on renal function: a retrospective cohort study comparing one-year outcomes between one-anastomosis gastric bypass and Roux-en-Y gastric bypass

ABSTRACT BACKGROUND: Evidence on the effect of one-anastomosis gastric bypass (OAGB) on renal function is limited. OBJECTIVE: To compare the evolution of estimated renal function observed 1 year after OAGB and Roux-en-Y gastric bypass (RYGB) in individuals with obesity. DESIGN AND SETTING: Observational, analytical, and retrospective cohort study. Tertiary-level university hospital. METHODS: This study used a prospectively collected database of individuals who consecutively underwent bariatric surgery. Renal function was assessed by calculating the estimated glomerular filtration rate (eGFR), according to the Chronic Kidney Disease Epidemiology Collaboration. The one-year variation in the eGFR was compared between the procedures. RESULTS: No significant differences in age, sex, obesity-associated conditions, or body mass index were observed among individuals who underwent either OAGB or RYGB. OAGB led to a significantly higher percentage of total (P = 0.007) and excess weight loss (P = 0.026). Both OAGB and RYGB led to significantly higher values of eGFR (103.9 ± 22 versus 116.1 ± 13.3; P = 0.007, and 102.4 ± 19 versus 113.2 ± 13.3; P < 0.001, respectively). The one-year variation in eGFR was 11 ± 16.2% after OAGB and 16.7 ± 26.3% after RYGB (P = 0.3). Younger age and lower baseline eGFR were independently associated with greater postoperative improvement in renal function (P < 0.001). CONCLUSION: Compared with RYGB, OAGB led to an equivalent improvement in renal function 1 year after the procedure, along with greater weight loss.

The influence of hemodialysis on intracranial pressure waveform in patients with chronic kidney disease: an observational study

ABSTRACT BACKGROUND: Among the complications related to chronic kidney disease (CKD), those of a neurological nature stand out, and for a better quality of life for patients, the diagnosis and treatment of these complications is fundamental. OBJECTIVES: This study aimed to assess the effect of hemodialysis on intracranial pressure waveform (ICPw) in patients with chronic kidney disease undergoing hemodialysis and those who are not yet undergoing substitutive therapy. DESIGN AND SETTING: An observational study was conducted in two stages at a kidney replacement therapy center in Brazil. The first was a longitudinal study and the second was a cross-sectional study. METHODS: Forty-two patients on hemodialysis were included in the first stage of the study. In the second stage, 226 participants were included. Of these, 186 were individuals with chronic kidney disease (who were not undergoing substitutive therapy), and 40 did not have the disease (control group). The participants' intracranial compliance was assessed using the non-invasive Brain4care method, and the results were compared between the groups. RESULTS: There was a significant difference between the hemodialysis and non-hemodialysis groups, with the former having better ICPw conditions. CONCLUSIONS: Hemodialysis influenced the improvement in ICPw, probably due to the decrease in the patients' extra-and intracellular volumes. Furthermore, ICPw monitoring can be a new parameter to consider when defining the moment to start substitutive therapy.

Diplejía facial en paciente con nefropatía por virus de inmunodeficiencia humana

Introducción: El síndrome de Guillain-Barré comprende un grupo heterogéneo de polirradiculoneuropatías inflamatorias agudas autoinmunes, las cuales se caracterizan por debilidad simétrica de extremidades con pérdida de reflejos miotáticos. Presenta gran variabilidad clínica, donde la afectación facial es habitual, sin embargo, incluye manifestaciones atípicas que dificultan el diagnóstico temprano de la enfermedad. Objetivo: Describir el comportamiento de un caso atípico de diplejía facial en un paciente con nefropatía por virus de inmunodeficiencia humana. Caso clínico: Se presentó el caso de un paciente portador de nefropatía por virus de la inmunodeficiencia humana, que comenzó con parálisis facial bilateral, como forma de presentación atípica de este síndrome. Acudió a los servicios de salud refiriendo decaimiento marcado, náuseas, vómitos, hipo y dos deposiciones líquidas. Se realizaron estudios que corroboran el diagnóstico. El tratamiento empleado facilitó la recuperación paulatina de la afección. Conclusiones: El diagnóstico precoz de las variantes atípicas de presentación del síndrome, permite un tratamiento oportuno, donde las posibilidades de complicaciones en el paciente son reducidas, así como la mortalidad asociada a la enfermedad.

Introduction: Guillain-Barré Syndrome comprises a heterogeneous group of autoimmune acute inflammatory polyradiculoneuropathies, which are characterized by symmetrical limb weakness with loss of stretch reflexes. It presents great clinical variability, where facial involvement is common; however, it includes atypical manifestations that make early diagnosis of the disease difficult. Objective: To describe the behavior of an atypical case of facial displejía in a patient with nephropathy due to Human Immunodeficiency Virus. Case report: A case of a patient with HIV nephropathy is presented, which begins with bilateral facial paralysis, as an atypical presentation of this syndrome. The patient went to the health services reporting marked weakness, nausea, vomiting, hiccups and two liquid stools. Studies were performed that corroborate the diagnosis. The treatment used facilitated the gradual recovery of the condition. Conclusions: Early diagnosis of the atypical presentation variants of the syndrome allows timely treatment, where the chances of complications in the patient are reduced, as well as the mortality associated with the disease.

Novel mechanisms driving renal tubulointerstitial fibrosis / 中国临床药理学与治疗学

Renal fibrosis, especially tubulointerstitial fibrosis, is the most common pathway of all chronic kidney diseases progressing to end-stage renal diseases. Several adaptive reactions occur in renal tubular epithelial cells after chronic injury, such as changes in glycolipid metabolism, unfolded protein response, autophagy and senescence, epithelial-to-mesenchymal transition and G2/M cell cycle arrest. Maladaptive repair mechanisms can induce tubulointerstitial fibrosis. This article will discuss the molecular mechanism of these adaptive responses of renal tubular epithelial cells driving renal tubulointerstitial fibrosis, and provide a basis for exploring new drug targets for renal tubulointerstitial fibrosis.

Advancements in the Diagnosis and Treatment of Rare Kidney Diseases / 罕见病研究

Rare kidney diseases constitute a significant factor leading to kidney failure with many having a hereditary basis. The incidence of inherited disorders contributing to adult chronic kidney disease is lower compared to that in children; however, up to 10% of adult patients with chronic kidney disease are affected by a single-gene pathogenic variant. Over the past decade, sequencing technologies have become widely utilized in clinical settings, undergoing continuous iterations and updates to enhance the diagnosis of rare kidney diseases. Simultaneously, the field confronts numerous challenges, particularly in the development and application of novel therapeutic drugs. In an era crucial development, China is set to publish rare disease catalogs in 2018 and 2023, a move that holds the promise of comprehensively advancing the diagnosis, treatment, and research of rare kidney diseases in the country.

Rare Genetic Kidney Diseases: Windows of Precision Nephrology / 罕见病研究

As an important category of rare diseases, rare genetic kidney diseases have many types. In recent years, their diagnosis, treatment, research and management strategies have made great progress. Continuously more new genes and mechanisms have been discovered, giving rise to new technologies and drugs for precision medicine and clinical applications. This article systematically analyzes rare diseases involving the urinary system listed in the catalog of rare diseases in China, gives examples to illustrate the research and management methods for the diagnosis and treatment of rare genetic kidney diseases, promotes clinical applications of new drugs by expanding physiological mechanisms, introduces the application of special blood purification in the field of critical rare diseases, and provides an outlook forward to the future prospects of precise diagnosis and treatment of rare kidney diseases in China.

Relación de la enfermedad periodontal inflamatoria crónica con enfermedades sistémicas

Introducción: La enfermedad periodontal es una infección inmunoinflamatoria crónica de origen multifactorial. Puede avanzar a nivel sistémico por el paso de bacterias y sus productos al torrente sanguíneo, lo cual constituye un factor de riesgo para alteraciones sistémicas. La revisión bibliográfica se realizó de julio 2022 hasta febrero 2023. Se utilizaron las bases de datos PubMed, SciELO y Elsevier y el motor de búsqueda Google Académico. Objetivos: Describir la relación de la enfermedad periodontal inflamatoria crónica con enfermedades sistémicas. Desarrollo: La medicina periodontal estudia la relación que existe entre las periodontopatías y enfermedades sistémicas, como las cardiovasculares, cerebrovasculares, pulmonares, la renal crónica, la artritis reumatoide y el Alzheimer. Las bacterias provenientes de las bolsas periodontales pasan hacia la circulación sanguínea, producen infección metastásica y daño metastásico, mediante la producción de endotoxinas, lipopolisacáridos e inflamación metastásica. Conclusiones: La enfermedad periodontal crónica constituye un factor de riesgo para el desarrollo de enfermedades cardiovasculares, pulmonares, renales, trastornos cerebrovasculares, artritis reumatoide y el Alzheimer debido a reacciones inflamatorias producidas por microorganismos patogénicos; se establece una relación bidireccional entre estas enfermedades y las periodontopatías.

Introduction: Periodontal disease is a chronic immunoinflammatory infection of multifactorial origin. It can advance at a systemic level due to the passage of bacteria and their products into the bloodstream, which constitutes a risk factor for systemic alterations. The bibliographic review was carried out from July 2022 to February 2023. The PubMed, SciELO and Elsevier databases and the Google Scholar search engine were used. Objectives: Describe the relationship of chronic inflammatory periodontal disease with systemic diseases. Development: Periodontal medicine studies the relationship between periodontopathies and systemic diseases, such as cardiovascular, cerebrovascular, pulmonary, chronic kidney disease, rheumatoid arthritis and Alzheimer's. Bacteria from periodontal pockets pass into the blood circulation, producing metastatic infection and metastatic damage, through the production of endotoxins, lipopolysaccharides and metastatic inflammation. Conclusions: Chronic periodontal disease constitutes a risk factor for the development of cardiovascular, pulmonary, renal diseases, cerebrovascular disorders, rheumatoid arthritis and Alzheimer's due to inflammatory reactions produced by pathogenic microorganisms; A bidirectional relationship is established between these diseases and periodontopathies. The analysis of this relationship and the mechanisms by which it occurs guarantees the development of a more integrative care practice.

Frailty syndrome and end-stage kidney disease outcomes at a Latin American dialysis center

Introduction. Frailty syndrome generates a high risk of adverse outcomes and mortality, and its prevalence is elevated in patients with end-stage kidney disease. Few studies have reported the prevalence and outcomes of frailty in populations from less developed countries. Objective. To identify the clinical outcomes and factors associated with the frailty syndrome in patients with stage five chronic kidney disease who started renal replacement therapy - both hemodialysis and peritoneal dialysis- in a dialysis center in Bucaramanga, Colombia. Materials and methods. This was a prospective study of patients with end-stage kidney disease who initiated dialysis at a center in Colombia and had a twelve-month follow-up. Results. The overall frailty prevalence was 50.47% and two out of three patients older than 65 years had the syndrome. We found significantly higher followup mortality among patients with frailty: odds ratio of 2.95 (CI: 1.07- 8.13; p=0.036) in unadjusted analysis. Conclusions. Literature shows that compared to developed nations, Latin American adults are facing a higher prevalence of chronic diseases, and frailty syndrome is increasing. In this study, according to the FRAIL scale, having a frailty syndrome predicts a higher mortality; hypoalbuminemia and low creatinine levels at the beginning of dialysis could act as predictors of its diagnosis.

Introducción. El síndrome de fragilidad implica un alto riesgo de desenlaces adversos y mortalidad, y tiene una prevalencia elevada en pacientes con enfermedad renal en etapa terminal. Hay pocos estudios que investiguen la prevalencia y los desenlaces de este síndrome de fragilidad en las poblaciones de los países en desarrollo. Objetivo. Identificar los desenlaces clínicos y los factores asociados al síndrome de fragilidad en los pacientes con enfermedad renal crónica en estadio cinco que inician terapia de reemplazo renal -con hemodiálisis o diálisis peritoneal- en un centro de diálisis de Bucaramanga, Colombia. Materiales y métodos. Se trató de un estudio prospectivo de pacientes con enfermedad renal en etapa terminal que iniciaron diálisis en un centro de Colombia y a quienes se les hizo seguimiento durante doce meses. Resultados. La prevalencia global del síndrome de fragilidad fue del 50,47 % y dos de cada tres pacientes mayores de 65 años lo presentaban. Se encontró una mortalidad significativamente mayor entre los pacientes con síndrome de fragilidad: razón de probabilidad de 2,95 (IC:1,07-8,13; p=0,036) en el análisis no ajustado. Conclusiones. La literatura muestra que, en comparación con los países desarrollados, los adultos latinoamericanos presentan una mayor prevalencia de enfermedades crónicas y un aumento progresivo del síndrome de fragilidad. En este estudio, la fragilidad -según la escala FRAIL- predijo una mayor mortalidad. Además, la hipoalbuminemia y los niveles bajos de creatinina al inicio de la diálisis podrían actuar como elementos predictores de su diagnóstico.

Síndrome de Currarino incompleto. Presentación de un caso

El síndrome de Currarino es una enfermedad hereditaria y de baja incidencia, compuesta por una tríada: estenosis anal, malformación sacro coccígea y masa presacra. Puede cursar desapercibido hasta la adultez y generar subdiagnósticos. Se describe un paciente de 75 años, masculino, piel negra, de procedencia urbana y con antecedentes de hipertensión arterial, quien acudió al hospital por presentar hematuria, dolor en fosa lumbar izquierda y estreñimiento. Se realizaron estudios imagenológicos, como ultrasonido, tomografía de abdomen y resonancia magnética lumbosacra, los cuales condujeron al diagnóstico de tumor renal, síndrome de Currarino incompleto (dado por dos elementos de la triada: malformación sacro coccígea y masa presacra) asociado a otra enfermedad malformativa raquimedular, médula anclada. Son pocos los casos reportados en el mundo (casi 300), por lo que se considera una entidad rara, pero de fácil diagnóstico debido al advenimiento de las nuevas tecnologías en el campo de la imagenología.

Currarino syndrome is a hereditary disease with a low incidence, composed of a triad: anal stenosis, sacrococcygeal malformation and presacral mass. It can go unnoticed until adulthood and generate subdiagnoses. A 75-years-old male, black-skinned, urban origin patient with a history of arterial hypertension is described, who attended the hospital presenting hematuria, pain in the left lumbar fossa, and constipation. Radiological studies such as ultrasound, abdominal tomography and lumbosacral magnetic resonance were performed, which led to the diagnosis of a renal tumor, incomplete Currarino syndrome (given by two elements of the triad: sacrococcygeal malformation and presacral mass) associated with another spinal cord malformation disease, tethered cord. There are few cases reported in the world (almost 300), so it is considered a rare entity, but easy to diagnose due to new imaging technologies.

Validación de un instrumento para medir satisfacción de pacientes renales atendidos por telemedicina durante la pandemia por COVID-19

Evaluar la validez y confiabilidad de un instrumento que mide la satisfacción de servicios nutricionales en pacientes renales. Material y Métodos: El estudio tuvo 7 fases dentro de las cuales se elaboró un instrumento que mide la satisfacción de pacientes de la Unidad de Salud renal, atendidos en talleres de nutrición por telemedicina, el cual se aplicó a 31 pacientes. Resultados: La validez de contenido global tuvo un índice de Lawshe igual a 0.95. La validez de constructo del cuestionario de satisfacción mediante análisis factorial exploratorio encontró 2 factores que corresponden al 87.5 % de variabilidad total. La confiabilidad del cuestionario tuvo un Alpha de Cronbach de 0.9. Conclusiones: El cuestionario que mide satisfacción de los pacientes renales atendidos por telemedicina tuvo alta validez de contenido, constructo y confiabilidad.

To evaluate the validity and reliability of an instrument that measures the satisfaction of nutritional services in renal patients. The study had 7 phases within which an instrument was developed that measures the satisfaction of the patients of the Renal Health Unit, attended in nutrition workshops by telemedicine, which was applied to 31 patients. The global content validity had a Lawshe index equal to 0.95. The construct validity of the satisfaction questionnaire through exploratory factor analysis found 2 factors that correspond to 87.5% of the total. The reliability of the questionnaire had a Cronbach's Alpha of 0.9. The questionnaire that measures the satisfaction of renal patients attended by telemedicine had high content, construct, and reliability validity.

Exposure of patients with chronic kidney disease on dialysis to pesticides / Exposição de pacientes com doença renal crônica em tratamento dialítico aos agrotóxicos

ABSTRACT Introduction: Pesticides can trigger kidney disease. Objective: To describe the exposure to pesticides of patients with chronic kidney disease on dialysis. Methods: Quantitative and descriptive field research, with 90 patients with chronic kidney disease on dialysis in two hemodialysis units in the state of Santa Catarina, through the application of a structured questionnaire. Participants were divided into two groups: with and without exposure to pesticides. The questionnaire was applied in hemodialysis clinics during treatment. Laboratory test values were collected from clinical records. Data were analyzed using descriptive statistics and association using the chi-square test. For laboratory test data, a comparison of means was performed using the unpaired Student's t-test between the groups. Results: The mean age of exposed participants was 58 years (±13.7; minimum = 23; maximum = 75) and that of non-exposed participants was 64 years old (±13.9; minimum = 35; maximum = 96). Of the 90 patients, 30% were exposed to pesticides. The mean exposure time was 6.7 ± 3.8 hours/day. There was a statistically significant association between the preparation of the mixture with pesticides and diabetes (p ≤ 0.048). There was no statistically significant difference between the results of laboratory tests in the exposed and non-exposed groups. Conclusion: This study shows that pesticides can be triggering factors for chronic kidney disease (CKD); however, we must expand research in this field to prove the relationship between exposure to pesticides and CKD.

Resumo Introdução: O uso de agrotóxicos pode desencadear doença renal. Objetivo: Descrever a exposição a agrotóxicos de pacientes com doença renal crônica em tratamento dialítico. Métodos: Pesquisa de campo, quantitativa e descritiva, com 90 portadores de doença renal crônica em tratamento dialítico em duas unidades de hemodiálise no estado de Santa Catarina, por meio da aplicação de um questionário estruturado. Os participantes foram divididos em dois grupos: sem e com exposição a agrotóxicos. O questionário foi aplicado nas clínicas de hemodiálise durante o tratamento. Foram coletados valores de exames laboratoriais dos prontuários clínicos. Os dados foram analisados pela estatística descritiva e associação pelo teste qui-quadrado. Para os dados dos exames laboratoriais, foi realizada comparação de médias pelo teste t de Student não pareado entre os grupos. Resultados: A idade média dos participantes expostos foi de 58 anos (±13,7; mínimo = 23; máximo = 75) e a dos não expostos, de 64 anos (±13,9; mínimo = 35; máximo = 96). Dos 90 pacientes, 30% foram expostos a agrotóxicos. O tempo médio de exposição foi de 6,7 ± 3,8 horas/dia. Houve associação estatística significativa entre o preparo da calda com agrotóxicos e a presença de diabetes (p ≤ 0,048). Não houve diferença estatística significativa entre os resultados dos exames laboratoriais do grupo exposto e do não exposto. Conclusão Esta pesquisa evidencia que os agrotóxicos podem ser fatores desencadeadores da doença renal crônica (DRC), entretanto sugere-se ampliar pesquisas na área que possam comprovar a relação entre exposição a agrotóxicos e DRC.

Detección de ansiedad y depresión en el binomio receptor-donador durante el protocolo de trasplante renal / Anxiety and depression in the recipient-donor binomial during the kidney transplant protocol

ABSTRACT Introduction: Detection of anxiety and depression in the recipient-donor pair (BinRD) during the kidney transplant protocol (KT) is important to establish psychoeducational interventions that help achieve success during and after KT. Objective: To determine the presence of anxiety and depression symptoms in the BinRD during the RT protocol and to identify characteristics and associated factors. Methods: Cross-sectional study, including 174 binomials being evaluated for TR. The Beck Depression Scale (BDI-II) and the Hospital Anxiety and Depression Scale (HADS) were applied at the beginning of the RT protocol. Results: Anxiety and depression symptoms were more frequent in recipient candidates than in donors ([anxiety 39% vs 21%] [depression 46% vs 15%]) (p<0.0001). The recipients presented a higher risk of depression (OR=4.770, 95% CI 2.854-7.974, p<0.0001) and anxiety (OR=2.383, 95% CI 1.478-3.841, p<0.001). Undertaking hemodialysis in private units (OR 0.264, 95%CI 0.106-0.662, p=0.004) or being on automated peritoneal dialysis (OR 0.386, 95%CI 0.173-0.862, p=0.020 was associated with less anxiety in recipients. Conclusions: a high frequency of anxiety and depression symptoms in the BinRD, so it is important to offer effective psychological interventions focused especially on the recipient during the donation evaluation process.

RESUMEN Introducción: La detección de ansiedad y depresión en el binomio receptor-donador (BinRD) durante el protocolo de trasplante renal (TR) es importante, para establecer intervenciones psicoeducativas que ayuden a lograr el éxito durante y después del TR. Objetivo: Determinar presencia de síntomas de ansiedad y depresión en el BinRD durante el protocolo de TR e identificar características y factores asociados. Métodos: Estudio transversal, incluye 174 binomios en evaluación para TR. Se aplicó la Escala de Depresión de Beck (BDI-II) y la Escala de Ansiedad y Depresión Hospitalaria (HADS) al inicio del protocolo de TR. Resultados: Síntomas de ansiedad y depresión fueron más frecuentes en candidatos a receptores que en donadores ([ansiedad 39% vs 21%] [depresión 46% vs 15%]) (p<0.0001). Los receptores, presentaron mayor riesgo de depresión (OR=4.770, IC 95% 2.854-7.974, p<0.0001) y ansiedad (OR=2.383, IC 95% 1.478-3.841, p<0.001). Realizarse hemodiálisis en unidades privadas (OR 0.264, IC95% 0.106-0.662, p=0.004) o estar en diálisis peritoneal automatizada (OR 0.386, IC95% 0.173-0.862, p=0.020 se asoció a menor ansiedad en receptores. Conclusiones: Se evidenció una alta frecuencia de síntomas de ansiedad y depresión en el BinRD, por lo que es importante ofrecer intervenciones psicológicas eficaces enfocadas especialmente al receptor durante el proceso de evaluación para la donación.

Endovascular treatment of intrarenal aneurysms bleeding and angiomyolipomas in a patient with tuberous sclerosis and polycystic kidney disease / Tratamento endovascular de sangramentos e angiomiolipomas de aneurismas intrarrenais em um paciente com esclerose tuberosa e doença renal policística

Abstract Tuberous sclerosis complex (TSC) and autosomal dominant polycystic kidney disease (ADPKD) are conditions related to renal failure that can rarely occur in association as a contiguous gene syndrome. Angiomyolipomas (AMLs) are renal tumors strongly related to TSC that may rupture and cause life-threatening bleedings. We present a patient with TSC, ADPKD, and renal AMLs with persistent hematuria requiring blood transfusion. The persistent hematuria was successfully treated through endovascular embolization, a minimally invasive nephron sparing technique.

Resumo O complexo de esclerose tuberosa (CET) e a doença renal policística autossômica dominante (DRPAD) são condições relacionadas à insuficiência renal que raramente podem ocorrer em associação como uma síndrome do gene contíguo. Angiomiolipomas (AMLs) são tumores renais fortemente relacionados ao CET que podem romper-se e causar hemorragias com risco de vida. Apresentamos um paciente com CET, DRPAD e AMLs renais com hematúria persistente que requer transfusão sanguínea. A hematúria persistente foi tratada com sucesso por meio de embolização endovascular, uma técnica de preservação do néfron minimamente invasiva.

A case of colonoscopy-induced Wunderlich's syndrome in a hemodialysis patient: coincidence or association? / Um caso de síndrome de Wunderlich induzida por colonoscopia em um paciente em hemodiálise: coincidência ou associação?

Abstract Wunderlich syndrome, or spontaneous renal hemorrhage (SRH), is a rare condition encountered in patients undergoing chronic hemodialysis (HD) usually attributed to acquired cystic kidney disease (ACKD) among other causes. In the literature, colonoscopy is associated with splenic injuries, and renal hemorrhage has not been previously described. Management can range from conservative treatment to angiographic embolization or exploration and nephrectomy. Here we report an unusual case of a 54-year-old woman HD patient who presented with SRH within a few days of colonoscopy. The reason of SRH was rupture of an ACKD cyst. We assumed that colonoscopy was a provoking factor and elaborated hypotheses for its etiopathogenesis. The patient underwent successful left nephrectomy. The importance of this case lies in the fact that colonoscopy is not always an innocent procedure in HD patients, and could be complicated by renal cyst hemorrhage.

Resumo A síndrome de Wunderlich, ou hematoma perirrenal espontâneo (HPE), é uma condição rara encontrada em pacientes submetidos à hemodiálise crônica (HD) geralmente atribuída à doença renal cística adquirida (DRCA), entre outras causas. Na literatura, a colonoscopia está associada a lesões esplênicas, e o hematoma renal não foi descrito anteriormente. O manejo pode variar de tratamento conservador a embolização angiográfica ou exploração e nefrectomia. Aqui relatamos um caso incomum de uma paciente em HD de 54 anos de idade que se apresentou com HPE dentro de poucos dias após a colonoscopia. O motivo do HPE foi a ruptura de um cisto de DRCA. Consideramos que a colonoscopia foi um fator provocador e elaboramos hipóteses para sua etiopatogenia. A paciente foi submetida a uma nefrectomia esquerda bem-sucedida. A importância deste caso reside no fato de que a colonoscopia nem sempre é um procedimento inocente em pacientes em HD, e pode ser complicada por hemorragia do cisto renal.

Kidney Disease in Ankylosing Spondylitis: a case series and review of the literature / Doença Renal na Espondilite Anquilosante: uma série de casos e revisão da literatura

Abstract Background Kidney disease is a rare manifestation of ankylosing spondylitis (AS) and its pathological alterations remain poorly described. The aim of this study was to investigate the clinical presentation and pathological alterations on kidney biopsy of AS patients and review and discuss the current literature on the issue. Methods: We retrospectively studied the clinical presentation and kidney pathological alterations of 15 Caucasian AS patients submitted to kidney biopsy between October 1985 and March 2021. Results: Patients were predominantly male (66.7%) with median age at the time of kideney biopsy of 47 years [IQR 34 - 62]. Median serum creatinine at presentation was 1.3 mg/dL [IQR 0.9 - 3] and most patients also had either proteinuria (85.7%) and/or hematuria (42.8%). The most common indication for kidney biopsy was nephrotic syndrome (33.3%), followed by acute or rapidly progressive kidney injury (20%) and chronic kidney disease of unknown etiology (20%). Chronic interstitial nephritis (CIN) (n=3) and AA amyloidosis (n=3) were the most common diagnosis. Others included IgA nephropathy (IgAN) (n=2), focal segmental glomerulosclerosis (n=2), membranous nephropathy (n=1), and immune complex-mediated membranoproliferative glomerulonephritis (IC-MPGN)(n=1). Conclusions: We present one of the largest series of biopsy-proven kidney disease in Caucasian AS patients. We found a lower prevalence of IgAN than previously reported in Asian cohorts. We found a higher prevalence of CIN and a lower prevalence of AA amyloidosis than that described in previous series of Caucasian patients. We also present the first case of AS-associated IC-MPGN.

Resumo Antecedentes: A doença renal é uma manifestação rara de espondilite anquilosante (EA) e as suas alterações patológicas permanecem pouco descritas. O objetivo deste estudo foi investigar a apresentação clínica e alterações patológicas na biópsia renal de doentes com EA bem como rever e discutir a literatura atual sobre o assunto. Métodos: Estudamos retrospectivamente a apresentação clínica e alterações patológicas renais de 15 doentes caucasianos com EA submetidos a biópsia renal entre Outubro de 1985 e Março de 2021. Resultados: Os doentes eram predominantemente homens (66,7%) com idade mediana no momento da biópsia de 47 anos [IIQ 34 - 62]. A creatinina sérica mediana na apresentação foi de 1,3 mg/dL [IIQ 0,9 - 3] e a maioria dos pacientes apresentava também proteinúria (85,7%) e/ou hematúria (42,8%). A indicação mais comum para biópsia renal foi a síndrome nefrótica (33,3%), seguida de lesão renal aguda ou rapidamente progressiva (20%) e doença renal crónica de etiologia desconhecida (20%). A Nefrite intersticial crónica (NIC) (n=3) e a amiloidose AA (n=3) foram os diagnósticos mais comuns. Outros incluíram nefropatia por IgA (NIgA) (n=2), glomeruloesclerose segmentar focal (n=2), nefropatia membranosa (n=1) e glomerulonefrite membranoproliferativa mediada por imunocomplexos (GNMP-IC) (n=1). Conclusões: Apresentamos uma das maiores séries de doenças renais comprovadas por biópsia em doentes caucasianos com EA. Encontramos uma prevalência de NIgA menor do que a relatada anteriormente em coortes asiáticas. Encontramos uma maior prevalência de NIC e uma prevalência menor de amiloidose AA do que a descrita em séries anteriores de pacientes caucasianos. Também apresentamos o primeiro caso de GNMP-IC associada à EA.