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      COVID-19 and chronic kidney disease: a comprehensive review Translated title: COVID-19 e doença renal crônica: uma revisão abrangente

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          Abstract

          Kidney impairment in hospitalized patients with SARS-CoV-2 infection is associated with increased in-hospital mortality and worse clinical evolution, raising concerns towards patients with chronic kidney disease (CKD). From a pathophysiological perspective, COVID-19 is characterized by an overproduction of inflammatory cytokines (IL-6, TNF-alpha), causing systemic inflammation and hypercoagulability, and multiple organ dysfunction syndrome. Emerging data postulate that CKD under conservative treatment or renal replacement therapy (RRT) is an important risk factor for disease severity and higher in-hospital mortality amongst patients with COVID-19. Regarding RAAS blockers therapy during the pandemic, the initial assumption of a potential increase and deleterious impact in infectivity, disease severity, and mortality was not evidenced in medical literature. Moreover, the challenge of implementing social distancing in patients requiring dialysis during the pandemic prompted national and international societies to publish recommendations regarding the adoption of safety measures to reduce transmission risk and optimize dialysis treatment during the COVID-19 pandemic. Current data convey that kidney transplant recipients are more vulnerable to more severe infection. Thus, we provide a comprehensive review of the clinical outcomes and prognosis of patients with CKD under conservative treatment and dialysis, and kidney transplant recipients and COVID-19 infection.

          Resumo

          O comprometimento renal em pacientes hospitalizados com infecção por SARS-CoV-2 está associado ao aumento da mortalidade hospitalar e pior evolução clínica, levantando preocupações em relação a pacientes com doença renal crônica (DRC). De uma perspectiva fisiopatológica, a COVID-19 é caracterizada por uma superprodução de citocinas inflamatórias (IL-6, TNF-alfa), causando inflamação sistêmica e hipercoagulabilidade, e síndrome de disfunção de múltiplos órgãos. Dados emergentes postulam que a DRC sob tratamento conservador ou terapia renal substitutiva (TRS) é um fator de risco importante para a gravidade da doença e maior mortalidade hospitalar entre pacientes com COVID-19. Em relação à terapia com bloqueadores RAAS durante a pandemia, havia uma suposição inicial de que a classe pudesse causar um aumento potencial na infectividade, e impacto deletério na gravidade da doença e mortalidade, mas que não foi confirmada na literatura médica. Além disso, o desafio de implementar o distanciamento social em pacientes que necessitam de diálise durante a pandemia incentivou sociedades nacionais e internacionais a publicar recomendações sobre a adoção de medidas de segurança para reduzir o risco de transmissão e otimizar o tratamento de diálise durante a pandemia COVID-19. Os dados atuais mostram que os receptores de transplante renal são mais vulneráveis a infecções mais graves. Assim, fizemos uma revisão abrangente dos desfechos clínicos e prognóstico de pacientes com DRC sob tratamento conservador e diálise, e receptores de transplante renal e infecção por COVID-19.

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          Clinical Characteristics of Coronavirus Disease 2019 in China

          Abstract Background Since December 2019, when coronavirus disease 2019 (Covid-19) emerged in Wuhan city and rapidly spread throughout China, data have been needed on the clinical characteristics of the affected patients. Methods We extracted data regarding 1099 patients with laboratory-confirmed Covid-19 from 552 hospitals in 30 provinces, autonomous regions, and municipalities in mainland China through January 29, 2020. The primary composite end point was admission to an intensive care unit (ICU), the use of mechanical ventilation, or death. Results The median age of the patients was 47 years; 41.9% of the patients were female. The primary composite end point occurred in 67 patients (6.1%), including 5.0% who were admitted to the ICU, 2.3% who underwent invasive mechanical ventilation, and 1.4% who died. Only 1.9% of the patients had a history of direct contact with wildlife. Among nonresidents of Wuhan, 72.3% had contact with residents of Wuhan, including 31.3% who had visited the city. The most common symptoms were fever (43.8% on admission and 88.7% during hospitalization) and cough (67.8%). Diarrhea was uncommon (3.8%). The median incubation period was 4 days (interquartile range, 2 to 7). On admission, ground-glass opacity was the most common radiologic finding on chest computed tomography (CT) (56.4%). No radiographic or CT abnormality was found in 157 of 877 patients (17.9%) with nonsevere disease and in 5 of 173 patients (2.9%) with severe disease. Lymphocytopenia was present in 83.2% of the patients on admission. Conclusions During the first 2 months of the current outbreak, Covid-19 spread rapidly throughout China and caused varying degrees of illness. Patients often presented without fever, and many did not have abnormal radiologic findings. (Funded by the National Health Commission of China and others.)
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            Clinical course and risk factors for mortality of adult inpatients with COVID-19 in Wuhan, China: a retrospective cohort study

            Summary Background Since December, 2019, Wuhan, China, has experienced an outbreak of coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Epidemiological and clinical characteristics of patients with COVID-19 have been reported but risk factors for mortality and a detailed clinical course of illness, including viral shedding, have not been well described. Methods In this retrospective, multicentre cohort study, we included all adult inpatients (≥18 years old) with laboratory-confirmed COVID-19 from Jinyintan Hospital and Wuhan Pulmonary Hospital (Wuhan, China) who had been discharged or had died by Jan 31, 2020. Demographic, clinical, treatment, and laboratory data, including serial samples for viral RNA detection, were extracted from electronic medical records and compared between survivors and non-survivors. We used univariable and multivariable logistic regression methods to explore the risk factors associated with in-hospital death. Findings 191 patients (135 from Jinyintan Hospital and 56 from Wuhan Pulmonary Hospital) were included in this study, of whom 137 were discharged and 54 died in hospital. 91 (48%) patients had a comorbidity, with hypertension being the most common (58 [30%] patients), followed by diabetes (36 [19%] patients) and coronary heart disease (15 [8%] patients). Multivariable regression showed increasing odds of in-hospital death associated with older age (odds ratio 1·10, 95% CI 1·03–1·17, per year increase; p=0·0043), higher Sequential Organ Failure Assessment (SOFA) score (5·65, 2·61–12·23; p<0·0001), and d-dimer greater than 1 μg/mL (18·42, 2·64–128·55; p=0·0033) on admission. Median duration of viral shedding was 20·0 days (IQR 17·0–24·0) in survivors, but SARS-CoV-2 was detectable until death in non-survivors. The longest observed duration of viral shedding in survivors was 37 days. Interpretation The potential risk factors of older age, high SOFA score, and d-dimer greater than 1 μg/mL could help clinicians to identify patients with poor prognosis at an early stage. Prolonged viral shedding provides the rationale for a strategy of isolation of infected patients and optimal antiviral interventions in the future. Funding Chinese Academy of Medical Sciences Innovation Fund for Medical Sciences; National Science Grant for Distinguished Young Scholars; National Key Research and Development Program of China; The Beijing Science and Technology Project; and Major Projects of National Science and Technology on New Drug Creation and Development.
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              Clinical Characteristics of 138 Hospitalized Patients With 2019 Novel Coronavirus–Infected Pneumonia in Wuhan, China

              In December 2019, novel coronavirus (2019-nCoV)-infected pneumonia (NCIP) occurred in Wuhan, China. The number of cases has increased rapidly but information on the clinical characteristics of affected patients is limited.
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                Author and article information

                Journal
                J Bras Nefrol
                J Bras Nefrol
                jbn
                Jornal Brasileiro de Nefrologia
                Sociedade Brasileira de Nefrologia
                0101-2800
                2175-8239
                09 April 2021
                Jul-Sep 2021
                : 43
                : 3
                : 383-399
                Affiliations
                [1 ]Universidade Estácio de Sá, Curso de Medicina Rio de Janeiro, Campus Centro I - Presidente Vargas, Rio de Janeiro, RJ, Brasil.
                [2 ]Universidade Federal do Rio de Janeiro, Hospital Universitário Clementino Fraga Filho, Rio de Janeiro, RJ, Brasil.
                [3 ]Pontifícia Universidade Católica de São Paulo, Faculdade de Ciências Médicas e da Saúde, São Paulo, SP, Brasil.
                Author notes
                [Correspondence to: ] Elizabeth S. Muxfeldt. E-mail: bethmux@ 123456globo.com

                Author's Contribution: All authors contributed substantially to the collection, analysis, and interpretation of data, the writing of the article and the critical review. All authors approved the final version to be published.

                Conflict of Interest: The authors declare no conflict of interest.

                Author information
                http://orcid.org/0000-0002-1043-0907
                http://orcid.org/0000-0001-6864-8805
                http://orcid.org/0000-0003-3853-7842
                http://orcid.org/0000-0002-4130-5148
                http://orcid.org/0000-0003-1433-1911
                http://orcid.org/0000-0001-7081-2977
                http://orcid.org/0000-0001-9612-6609
                http://orcid.org/0000-0001-9490-7997
                Article
                10.1590/2175-8239-JBN-2020-0203
                8428633
                33836039
                1c5909c1-48d1-42cc-8e75-abcae27c5f98

                This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                : 17 September 2020
                : 07 December 2020
                Categories
                Review Article

                renal insufficiency, chronic,renal dialysis,peritoneal dialysis,mortality,morbidity,insuficiência renal crônica,diálise renal,diálise peritoneal,mortalidade,morbidade

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