Síndrome cardiorrenal tipo 1 em região de baixo desenvolvimento: comparação entre os critérios akin e kdigo, necessidade de diálise e mortalidade / Type 1 cardiorenal syndrome in decompensated heart failure patients in a low-income region in brazil: incidence of acute kidney injury (akin and kdigo criteria), need for dialysis and mortality

Resumo Fundamento: A síndrome cardiorrenal tipo 1 associa-se a maior mortalidade em pacientes com insuficiência cardíaca (IC). No entanto, há escassez de publicações comparando critérios diagnósticos de lesão renal aguda (LRA). Objetivos: Analisar o perfil clinicofuncional de pacientes com IC e fatores associados a ocorrência de lesão renal aguda (LRA). Métodos: Estudo de coorte retrospectivo, em hospital terciário de região com baixo desenvolvimento econômico que incluiu pacientes com IC descompensada ou infarto agudo do miocárdio (IAM) recente, sendo avaliadas características clínicas, laboratoriais e ecocardiográficas comparativamente em pacientes com e sem LRA classificada pelos critérios Acute Kidney Network (AKIN) e Kidney Disease: Improving Global Outcomes (KDIGO). Nível de significância estatística com valor de p < 0,05. Resultados: Entre 81 pacientes, 61,73% evoluíram com LRA. A média de creatinina foi 1,79±1,0 mg/dL e de ureia 81,5±46,0 mg/dL, sendo maior no grupo com LRA (p < 0,05). Não foi evidenciada relação entre alterações cardíacas e redução da função renal. A doença renal crônica se associou a maior ocorrência de LRA (38% x 3,23% sem LRA, p = 0,001). Não houve diferença do KDIGO com relação ao critério AKIN. Os pacientes que desenvolveram LRA apresentaram maior mortalidade (32% x 9,8% no grupo sem LRA, p = 0,04, com odds ratio (OR) de 8,187 e intervalo de confiança 1,402-17,190, p = 0,020). Conclusão: Nessa casuística de pacientes com IC, a ocorrência de LRA foi elevada e foi fator de risco independente de mortalidade. As alterações cardíacas não se associaram à ocorrência de LRA, e os critérios diagnósticos KDIGO e AKIN apresentaram performance similar.

Abstract Background: Type 1 cardiorenal syndrome is associated with higher mortality in heart failure patients. However, few studies have compared the diagnostic criteria of acute kidney injury (AKI) in this population. Objective: To assess clinical and functional features and factors associated AKI in patients with heart failure. Method: Retrospective, cohort study on patients with decompensated heart failure or recent acute myocardial infarction, conducted in a tertiary hospital in a low-income region of Brazil. Clinical, laboratory and echocardiographic features were compared between patients with and without AKI according to the Acute Kidney Network (AKIN) and Kidney Disease: Improving Global Outcomes (KDIGO) criteria. The level of statistical significance was set at p < 0.05. Results: Of 81 patients, 61.73% had AKI. Mean creatinine and urea levels were 1.79±1.0 mg/dL and 81.5±46.0 mg/dL, respectively, and higher in the group with AKI (p < 0.05). No evidence of a relationship between cardiac changes and reduced renal function. Chronic renal disease was associated with higher prevalence of AKI. Higher mortality was observed in patients with AKI than in patients without AKI (32.0% vs. 9.8%, p = 0.04, OR 8.187 ad 95% confidence interval 1.402-17.190, p = 0.020). Conclusion: In this population of patients with heart failure, AKI was highly prevalent and considered an independent risk factor for mortality. Cardiac changes were not associated with AKI, and the KDIGO and AKIN criteria showed similar performance.

Síndrome Cardiorrenal Tipo 2: Um Forte Fator Prognóstico da Sobrevida / Cardiorenal Syndrome Type 2: A Strong Prognostic Factor of Survival

Fundamento: A insuficiência renal é comum em pacientes com insuficiência cardíaca crônica, com uma prevalência entre 20% a 57%, e está associada a um mau prognóstico e um alto risco de reinternações. Objetivo: O objetivo deste estudo foi apresentar características epidemiológicas, clínicas e terapêuticas de pacientes marroquinos com insuficiência cardíaca crônica que desenvolveram insuficiência renal crônica. Métodos: Foram avaliados 563 pacientes acompanhados por insuficiência cardíaca crônica na Unidade de Insuficiência Cardíaca do Departamento de Cardiologia do Hospital Universitário de Ibn Rushd em Casablanca, Marrocos, entre 30 de julho de 2012 e 30 de julho de 2016. Os pacientes foram divididos em dois grupos de acordo com a presença ou ausência de síndrome cardiorrenal. Resultados: Em comparação a pacientes que não desenvolveram síndrome cardiorrenal, os pacientes com síndrome cardiorrenal tenderam a ser mais velhos, hipertensos e diabéticos. Clinicamente, uma porcentagem mais alta dos pacientes apresentou dispneia estágio III ou IV. Biologicamente, os pacientes com SCR apresentaram níveis menores de hemoglobina e níveis plasmáticos maiores de ácido úrico. Em relação aos achados ecocardiográficos, esses pacientes também apresentaram menor FE do ventrículo esquerdo, com maior prevalência de hipertensão ventricular direita e hipertensão pulmonar, e maior risco de readmissão hospitalar (p < 0,0001). Conclusão: A deterioração da função renal na insuficiência renal crônica está associada com um pior prognóstico, incluindo um maior risco de readmissão hospitalar, eventos cardiovasculares, e morte. Maior atenção deve ser dada a pacientes idosos, diabéticos, com valores muito baixos de fração de ejeção do ventrículo esquerdo ou com hipertensão pulmonar

Background: Renal failure is common in patients with chronic heart failure, with a prevalence ranging from 20 % to 57% worldwide. It is associated with a poor prognosis and a high risk of readmission. Objectives: The purpose of our study is to show the epidemiological, clinical, paraclinical and therapeutic features of Moroccan patients with chronic heart failure who had developed a chronic renal failure. The endpoints were cardiac death and any cause of hospitalization. Methods: 563 patients followed for chronic heart failure at the heart failure unit in the Department of Cardiology of the University Hospital Ibn Rushd of Casablanca in Morocco, between July 30, 2012 and July 30, 2016 were assessed. Patients were divided into two groups according to the presence or absence of cardiorenal syndrome. Results: Compared to patients who had no cardiorenal syndrome, patients with cardiorenal syndrome tended to be more aged, hypertensive and diabetic. Clinically more patients were at dyspnea stage III or IV. Biologically their hemoglobin was lower and their blood uric acid level was higher. Regarding echocardiography, their ejection fraction of the left ventricle was lower, with more of systolic dysfunction of the right ventricle and pulmonary hypertension in the CRS group, with a higher risk of readmission (p < 0.0001). The mortality was significantly higher in the group CRS (p < 0.0001). Conclusion: The deterioration of renal function in chronic renal failure is associated with poor prognosis, including a high risk of rehospitalization, cardiovascular events and death. Patients who are elderly, diabetic, with a low left ventricular ejection fraction and pulmonary hypertension are the most concerned

Síndrome cardiorrenal tipo 1 en la unidad de cuidados intensivos coronarios del Hospital Nacional Arzobispo Loayza / Cardiorenal syndrome type 1 in the intensive coronary care unit of the Hospital Nacional Arzobispo Loayza

Objetivos: Evaluar la incidencia de síndrome cardiorrenal tipo 1 (SCR1) en una unidad de cuidados intensivos coronarios y su asociación a mortalidad intrahospitalaria a 30 días, así como a otras características epidemiológicas. Métodos: Se revisaron las historias clínicas de todos los pacientes hospitalizados con diagnóstico de falla cardíaca aguda en un periodo de 4 años. Se definió como SCR1 la presencia de falla cardíaca aguda más una creatinina al ingreso ≥ 0.3 mg/dL con respecto a la creatinina basal calculada por la fórmula MDRD75, y/o una elevación ≥ 50% de la creatinina al ingreso en un periodo de 48 h. Resultados: La incidencia de SCR1 fue del 27.87%, IC95%: 20.13-36.71 (34 de 122). Hubo una mayor frecuencia de SCR1 en los pacientes que ingresaron con diagnóstico de shock cardiogénico (RR: 2.02; IC95%: 1.20-3.93; p = 0.0378) y en los que tenían niveles más altos de hemoglobina (p = 0.0412). El SCR1 se asoció a una mayor mortalidad intrahospitalaria a 30 días (HR: 4.11; IC95%: 1.20-14.09; p = 0.0244). Conclusiones: La incidencia de SCR1 en la unidad de cuidados intensivos coronarios encontrada en nuestro estudio es similar a la descrita en estudios extranjeros. La presencia de shock cardiogénico como causa de falla cardíaca y valores más altos de hemoglobina se asociaron a una mayor incidencia de SCR1. Los pacientes con SCR1 tuvieron mayor mortalidad intrahospitalaria a 30 días.

Objectives: This study sought to evaluate the incidence of cardiorenal syndrome (CRS) type 1 in a coronary care unit and its association with hospital mortality within 30 days of admission, as well as other epidemiological characteristics. Methods: The medical records of all the patients who were hospitalized with the diagnosis of acute heart failure in a 4-year period were reviewed. CRS type 1 was characterized by the presence of acute heart failure and an elevation of serum creatinine ≥ 0.3 mg/dL in comparison to the baseline creatinine calculated by the MDRD75 equation and/or the elevation of ≥ 50% of the admission serum creatinine within a 48 h period. Results: The incidence of CRS type 1 was 27.87%, 95% CI: 20.13-36.71 (34 of 122). There was a higher frequency of CRS type 1 in those patients who were admitted with the diagnosis of cardiogenic shock (adjusted RR 2.02, 95% CI: 1.20-3.93, p = 0.0378) and in those with higher hemoglobin levels (p = 0.0412). The CRS type 1 was associated with an increase of 30-day mortality (HR: 4.11, 95% CI: 1.20-14.09, p = 0.0244). Conclusions: The incidence of CRS type 1 in the coronary care unit found in our study is similar to those found in foreign studies. The history of stroke and the higher values of hemoglobin were associated with a higher incidence of cardiorenal syndrome type 1. Patients with CRS type 1 had a higher hospital mortality within 30 days of admission.

Síndrome cardiorenal / Cardiorenal syndrome

El Síndrome Cardio Renal (SCR) en una entidad compleja y sólo recientemente reconocida, que está en plena fase de definición, estudio de su patogénesis y fisiopatología. El SCR fue primero descrito como el empeoramiento de la función renal en los pacientes con insuficiencia cardiaca aguda o crónica descompensada, y reúne a internistas, cardiólogos, nefrólogos e intensivistas, siendo además un importante marcador pronóstico de la misma. Si bien la presencia de compromiso de la función renal es frecuente en los pacientes cardiópatas, especialmente en aquellos con insuficiencia cardiaca, no es menos frecuente el compromiso cardiovascular y miocárdico expresado como insuficiencia cardiaca (IC), en los pacientes con enfermedad renal terminal...

The Cardio-renal Syndrome (CRS) is a complex and a recently recognized entity, which is in full stage of definition, pathogenesis and pathophysiological study. The CRS was first described as a failure of the renal system in patients with Acute or Chronic Cardiac Deficiency not compensated, and it groups internists, cardiologists, nephrologists, and intensivists, being, moreover, an important marker prognosis. Although the presence of compromise of the kidney function is frequent in heart disease patients, especially in those with Cardiac Deficiency, it is not less common the cardiovascular and myocardial compromise, named as Cardiac Deficiency (CD), in patients with End-Stage Kidney Disease...