Your browser doesn't support javascript.
Mostrar: 20 | 50 | 100
Resultados 1 - 12 de 12
Filtrar
1.
AIDS Care ; : 1-8, 2022 Mar 23.
Artigo em Inglês | MEDLINE | ID: covidwho-1751952

RESUMO

BACKGROUND: Although people living with HIV (PLWH) were considered to be at increased risk of SARS-CoV-2 infection, the driving force among this group of individuals is still not clear. METHODS: We investigated 1,709 PLWH through a telephone interview and identified 11 COVID-19 patients in four districts of Wuhan, China. The demographic features and major clinical characteristics of these patients were retrieved from the information management systems for COVID-19 patients of the four districts' CDC. Statistical analysis was performed to find out the driving force of COVID-19 among PLWH. RESULTS: The prevalence of COVID-19 in PLWH is 0.6% (95% CI: 0.2% - 1.0%), which is comparable to the overall population prevalence in Wuhan city (0.6%). Nine out of the 11 COVID-19 patients had relatively high CD4+ T lymphocyte count (>200/µl) and undetectable HIV viral load (<20 copies/ml), and ten of them were on antiretroviral therapy. Older PLWH with low CD4 + count, got HIV infected through homosexual activity, and had been diagnosed with HIV for a long time, were more likely to develop COVID-19. CONCLUSIONS: COVID-19 related morbidity rates were comparable between PLWH and the general population. Older age with low CD4 count, an extended period of HIV diagnosis, and treatment-naivety were potential driving forces of COVID-19 prevalence among PLWH. Strategies for preventing SARS-CoV-2 infection among PLWH with weak immune responses are required.

2.
Clin Infect Dis ; 73(11): e4208-e4213, 2021 12 06.
Artigo em Inglês | MEDLINE | ID: covidwho-1560475

RESUMO

BACKGROUND: Since December 2019, coronavirus disease 2019 (COVID-19), caused by severe adult respiratory syndrome coronavirus 2, occurred in Wuhan, and rapidly spread throughout China. This study aimed to clarify the characteristics of patients with refractory COVID-19. METHODS: In this retrospective single-center study, we included 155 consecutive patients with confirmed COVID-19 in Zhongnan Hospital of Wuhan University from 1 January to 5 February. The cases were divided into general and refractory COVID-19 groups according to the clinical efficacy of treatment after hospitalization, and the differences between groups were compared. RESULTS: Compared with patients with general COVID-19 (45.2%), those with refractory disease were older, were more likely to be male, and had more underlying comorbid conditions, a lower incidence of fever, higher maximum temperatures among patients with fever, higher incidences of shortness of breath and anorexia, more severe disease assessment at admission, higher neutrophil, aspartate aminotransferase, lactate dehydrogenase, and C-reactive protein levels, lower platelet counts and albumin levels, and higher incidences of bilateral pneumonia and pleural effusion (P < .05). Patients with refractory COVID-19 were more likely to receive oxygen, mechanical ventilation, expectorant, and adjunctive treatment, including corticosteroids, antiviral drugs, and immune enhancers (P < .05). Considering the factors of disease severity at admission, mechanical ventilation, and intensive care unit transfer, patients with refractory COVID-19 were also more likely to be male, have manifestations of anorexia on admission, and receive oxygen, expectorant, and adjunctive agents (P < .05). CONCLUSION: In nearly 50% of patients with COVID-19 obvious clinical and radiological remission was not achieved within 10 days after hospitalization. Male, anorexia, and no fever at admission was predictive of poor treatment efficacy.


Assuntos
COVID-19 , Adulto , China/epidemiologia , Feminino , Febre , Hospitalização , Humanos , Masculino , Estudos Retrospectivos , SARS-CoV-2
4.
Epidemiol Infect ; 148: e293, 2020 12 01.
Artigo em Inglês | MEDLINE | ID: covidwho-952350

RESUMO

The epidemic of coronavirus disease 2019 (COVID-19) began in China and had spread rapidly to many other countries. This study aimed to identify risk factors associated with delayed negative conversion of SARS-CoV-2 in COVID-19 patients. In this retrospective single-centre study, we included 169 consecutive patients with confirmed COVID-19 in Zhongnan Hospital of Wuhan University from 15th January to 2nd March. The cases were divided into two groups according to the median time of SARS-CoV-2 negative conversion. The differences between groups were compared. In total, 169 patients had a median virus negative conversion time of 18 days (interquartile range: 11-25) from symptom onset. Compared with the patients with short-term negative conversion, those with long-term conversion had an older age, higher incidence of comorbidities, chief complaints of cough and chest distress/breath shortness and severer illness on admission, higher level of leucocytes, neutrophils, aspartate aminotransferase, creatine kinase and erythrocyte sedimentation rate (ESR), lower level of CD3+CD4+ lymphocytes and albumin and more likely to receive mechanical ventilation. In multivariate analysis, cough, leucocytes, neutrophils and ESR were positively correlated with delayed virus negative conversion, and CD3+CD4+ lymphocytes were negatively correlated. The integrated indicator of leucocytes, neutrophils and CD3+CD4+ lymphocytes showed a good performance in predicting the negative conversion within 2 weeks (area under ROC curve (AUC) = 0.815), 3 weeks (AUC = 0.804), 4 weeks (AUC = 0.812) and 5 weeks (AUC = 0.786). In conclusion, longer quarantine periods might be more justified for COVID-19 patients with cough, higher levels of leucocytes, neutrophils and ESR and lower levels of CD3+CD4+ lymphocytes.


Assuntos
COVID-19 , SARS-CoV-2 , Adulto , Idoso , COVID-19/diagnóstico , COVID-19/epidemiologia , COVID-19/terapia , COVID-19/virologia , Epidemias , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , RNA Viral/análise , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo
5.
Res Sq ; 2020 Aug 10.
Artigo em Inglês | MEDLINE | ID: covidwho-724575

RESUMO

Background: Even people living with HIV/AIDS (PLWHA) were considered to be at increased risk of SARS-CoV-2 infection, the driving force among this group of individuals is still not clear. Methods : We investigated 1,701 PLWHA through a telephone interview and found 11 COVID-19 patients in four districts of Wuhan, China. The demographic features and major clinical characteristics of these patients were retrieved from the information management systems for COVID-19 patients of four districts' CDC. Statistical analysis was performed to find out the driving force of COVID-19 among PLWHA. Results : The incidence proportion of COVID-19 in PLWHA is 0.6% (95% CI: 0.2% - 1.0%), which is comparable to the overall population incidence rate in Wuhan city (0.6%). Nine out of the 11 COVID-19/AIDS patients had relatively high CD4+ T lymphocyte count (>200/µl) and undetectable HIV viral load (<20 copies/ml), and ten of them were on antiretroviral therapy. PLWHA who were old, had low CD4+ T lymphocyte count, infected HIV through homosexual activity, and had been diagnosed for HIV for a long time, were more likely to develop COVID-19. Conclusions: PLWHA has comparable COVID-19 morbidity rates as the general population, and older age, low CD4 count, long length since HIV diagnosis, and treatment-naive were potential driving forces of COVID-19 occurrence among PLWHA. Strategies in preventing SARS-CoV-2 infection among PLWHA with worse immune responses are needed. Article Summary Line: As COVID-19 continues to spread around the world, people living with HIV/AIDS (PLWHA) are also at risk of infection with SARS-CoV-2. We investigated the factors associated with SARS-CoV-2 infection among PLWHA in Wuhan, China.

6.
J Infect Dis ; 221(11): 1762-1769, 2020 05 11.
Artigo em Inglês | MEDLINE | ID: covidwho-688308

RESUMO

BACKGROUND: In December 2019, novel coronavirus (SARS-CoV-2) pneumonia (COVID-19) was reported in Wuhan and has since rapidly spread throughout China. We aimed to clarify the characteristics and clinical significance of peripheral lymphocyte subset alteration in COVID-19. METHODS: The levels of peripheral lymphocyte subsets were measured by flow cytometry in 60 hospitalized COVID-19 patients before and after treatment, and their association with clinical characteristics and treatment efficacy was analyzed. RESULTS: Total lymphocytes, CD4+ T cells, CD8+ T cells, B cells, and natural killer (NK) cells decreased in COVID-19 patients, and severe cases had a lower level than mild cases. The subsets showed a significant association with inflammatory status in COVID-19, especially CD8+ T cells and CD4+/CD8+ ratio. After treatment, 37 patients (67%) showed clinical response, with an increase in CD8+ T cells and B cells. No significant change in any subset was detected in nonresponsive cases. In multivariate analysis, posttreatment decrease in CD8+ T cells and B cells and increase in CD4+/CD8+ ratio were indicated as independent predictors of poor efficacy. CONCLUSIONS: Peripheral lymphocyte subset alteration was associated with clinical characteristics and treatment efficacy of COVID-19. CD8+ T cells tended to be an independent predictor for COVID-19 severity and treatment efficacy.


Assuntos
Infecções por Coronavirus/complicações , Infecções por Coronavirus/fisiopatologia , Subpopulações de Linfócitos , Pneumonia Viral/complicações , Pneumonia Viral/fisiopatologia , Pneumonia/etiologia , Pneumonia/fisiopatologia , Adulto , Idoso , Betacoronavirus/isolamento & purificação , COVID-19 , China , Infecções por Coronavirus/diagnóstico , Infecções por Coronavirus/terapia , Feminino , Citometria de Fluxo , Humanos , Contagem de Linfócitos , Subpopulações de Linfócitos/imunologia , Masculino , Pessoa de Meia-Idade , Pandemias , Pneumonia/diagnóstico , Pneumonia/terapia , Pneumonia Viral/diagnóstico , Pneumonia Viral/terapia , Prognóstico , SARS-CoV-2 , Resultado do Tratamento
7.
Infect Dis Poverty ; 9(1): 82, 2020 Jul 02.
Artigo em Inglês | MEDLINE | ID: covidwho-621510

RESUMO

BACKGROUND: The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) led to the outbreak of pneumonia in Wuhan. The virus is highly infectious. Patients with cancer might be susceptible to the viral infection because of the immunosuppressive state cause by therapies on tumors. CASE PRESENTATION: We present the clinical features of four cancer patients who were infected with SARS-CoV-2 in late January of 2020 in our hospital. Cases 1 and 3 were diagnosed as mild and common type of coronavirus disease 2019 (COVID-2019) and survived from the viral infection. They acquired SARS-CoV-2 infection during their staying in hospital under radiotherapy and surgery of the tumors. Cases 2 and 4 suffered from severe type of COVID-19, and Case 2 was dead owning to the advanced age, uncontrolled chronic B cell lymphocytic leukemia and many other underlying diseases. The immunosuppressive state induced by liver transplantation and anti-rejection therapy might contribute to the severity of COVID-19 in Case 4, who suffered from hepatitis B related hepatocellular carcinoma. However, Case 4 was recovered from COVID-19 after a combination therapy against virus, bacteria and fungi, and also respiratory support. Nearly all patients showed a decrease in lymphocytes including total CD3+ T cells, B cells, and natural killer cells after infection of the virus. CONCLUSIONS: The severity of COVID-19 might be influenced by immune system state and underlying diseases in cancer patients. And the treatment of SARS-CoV-2 infection in cancer patients is challenged by the immunosuppressive state of these patients under chemotherapy or surgery.


Assuntos
Betacoronavirus , Infecções por Coronavirus , Neoplasias/complicações , Pandemias , Pneumonia Viral , Adulto , Idoso , COVID-19 , China , Infecções por Coronavirus/complicações , Infecções por Coronavirus/diagnóstico por imagem , Infecções por Coronavirus/fisiopatologia , Evolução Fatal , Feminino , Humanos , Hospedeiro Imunocomprometido , Pulmão/diagnóstico por imagem , Pulmão/patologia , Masculino , Pessoa de Meia-Idade , Neoplasias/fisiopatologia , Neoplasias/terapia , Pneumonia Viral/complicações , Pneumonia Viral/diagnóstico por imagem , Pneumonia Viral/fisiopatologia , Radiografia Torácica , SARS-CoV-2
8.
Int Immunopharmacol ; 85: 106683, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: covidwho-548979

RESUMO

BACKGROUND: Since December 2019, novel coronavirus (SARS-CoV-2)-infected pneumonia (COVID-19) occurred in Wuhan, and rapidly spread throughout China. Our study aimed to evaluate the robustness of neutrophil to CD4+ lymphocyte ratio (NCD4LR) in predicting the negative conversion time (NCT) of SARS-CoV-2 in COVID-19 patients. METHODS: Univariate and multivariate analysis were conducted to evaluate the independency of NCD4LR in predicting NCT. Receiver operating characteristic (ROC) curve analysis and area under the curve (AUC) were used to assess the diagnostic accuracy. RESULTS: Compared with low NCD4LR patients, patients with high NCD4LR had an older age; higher incidence of fever, fatigue, chest distress/breath shortness, severer disease assessment on admission; higher levels of inflammatory indicators; low levels of lymphocyte subsets, and a longer NCT. Multivariate analysis also identified NCD4LR as an independent risk factor for delayed NCT. ROC analysis showed that NCD4LR had a better performance than neutrophil to lymphocyte ratio in predicting the virus negative conversion within 2 weeks (AUC = 0.772), 3 weeks (AUC = 0.710), 4 weeks (AUC = 0.728), or 5 weeks (AUC = 0.815). CONCLUSION: This study suggests that NCD4LR is a potential and useful biomarker for predicting the virus negative conversion time in COVID-19 patients. Furthermore, due to the NCDLR value is easily calculated, it can be widely used as a clinical biomarker for disease progression and clinical outcomes in COVID-19 patients.


Assuntos
Anticorpos Antivirais/sangue , Betacoronavirus/isolamento & purificação , Linfócitos T CD4-Positivos , Técnicas de Laboratório Clínico , Infecções por Coronavirus/imunologia , Contagem de Leucócitos , Neutrófilos , Pneumonia Viral/imunologia , Carga Viral , Viremia/imunologia , Adulto , Fatores Etários , Idoso , Área Sob a Curva , Betacoronavirus/imunologia , Biomarcadores , COVID-19 , Teste para COVID-19 , Convalescença , Infecções por Coronavirus/sangue , Infecções por Coronavirus/diagnóstico , Infecções por Coronavirus/virologia , Feminino , Humanos , Inflamação , Pacientes Internados , Contagem de Linfócitos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Nasofaringe/virologia , Pandemias , Alta do Paciente , Pneumonia Viral/sangue , Pneumonia Viral/virologia , Curva ROC , Estudos Retrospectivos , Fatores de Risco , SARS-CoV-2 , Avaliação de Sintomas , Fatores de Tempo
9.
Am J Transplant ; 20(7): 1916-1921, 2020 07.
Artigo em Inglês | MEDLINE | ID: covidwho-210165

RESUMO

Over 1 000 000 cases of coronavirus disease 2019 (COVID-19) have been confirmed since the worldwide outbreak began. Not enough data on infected solid organ transplant (SOT) recipients are available, especially data about the management of immunosuppressants. We report two cases of COVID-19 in two transplant recipients, with different treatments and prognoses. The first patient received liver transplantation due to hepatitis B virus-related hepatocellular carcinoma and was confirmed to have COVID-19 9 days later. Following a treatment regimen consisting of discontinued immunosuppressant use and low-dose methylprednisolone-based therapy, the patient developed acute rejection but eventually recovered. The other patient had undergone a renal transplant from a living-related donor 17 years ago, and was admitted to the hospital because of persistent fever. This patient was also diagnosed with COVID-19. His treatment regimen consisted of reduced immunosuppressant use. No signs of rejection were observed during the regimen. In the end, the patient successfully recovered from COVID-19. These effectively treated cases can provide a basis for immunosuppressant management of COVID-19-positive SOT recipients.


Assuntos
Infecções por Coronavirus/complicações , Infecções por Coronavirus/terapia , Imunossupressores/uso terapêutico , Transplante de Órgãos , Pneumonia Viral/complicações , Pneumonia Viral/terapia , Transplantados , Adulto , Betacoronavirus , COVID-19 , Carcinoma Hepatocelular/complicações , Carcinoma Hepatocelular/cirurgia , Hepatite B/complicações , Hepatite B/cirurgia , Vírus da Hepatite B , Humanos , Falência Renal Crônica/complicações , Falência Renal Crônica/cirurgia , Transplante de Rim , Neoplasias Hepáticas/complicações , Neoplasias Hepáticas/cirurgia , Transplante de Fígado , Masculino , Metilprednisolona/administração & dosagem , Pessoa de Meia-Idade , Pandemias , Prognóstico , SARS-CoV-2 , Resultado do Tratamento
10.
Emerg Infect Dis ; 26(8): 1930-1933, 2020 08.
Artigo em Inglês | MEDLINE | ID: covidwho-116498

RESUMO

We found that all 5 asymptomatic household contacts of a Wuhan, China, physician with coronavirus disease had severe acute respiratory syndrome coronavirus 2 detected by PCR. The index patient and 2 contacts also had abnormal chest computed tomography scans. Asymptomatic infected household contacts of healthcare workers with coronavirus disease might be underrecognized.


Assuntos
Betacoronavirus/fisiologia , Infecções por Coronavirus/epidemiologia , Infecções por Coronavirus/transmissão , Surtos de Doenças , Pneumonia Viral/epidemiologia , Pneumonia Viral/transmissão , Adulto , Doenças Assintomáticas , Betacoronavirus/patogenicidade , COVID-19 , Teste para COVID-19 , Criança , China/epidemiologia , Técnicas de Laboratório Clínico/métodos , Busca de Comunicante , Infecções por Coronavirus/diagnóstico , Características da Família , Feminino , Pessoal de Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Pandemias , Pneumonia Viral/diagnóstico , SARS-CoV-2 , Tomografia Computadorizada por Raios X
11.
J Gerontol A Biol Sci Med Sci ; 75(9): 1788-1795, 2020 09 16.
Artigo em Inglês | MEDLINE | ID: covidwho-47630

RESUMO

BACKGROUND: In December 2019, the coronavirus disease 2019 (COVID-19) emerged in Wuhan city and spread rapidly throughout China and the world. In this study, we aimed to describe the clinical course and outcomes of older patients with COVID-19. METHODS: This is a retrospective investigation of hospitalized older patients with confirmed COVID-19 at Zhongnan Hospital of Wuhan University from January 1, 2020, to February 10, 2020. RESULTS: In total, 203 patients were diagnosed with COVID-19, with a median age of 54 years (interquartile range, 41-68; range, 20-91 years). Men accounted for 108 (53.2%) of the cases, and 55 patients (27.1%) were more than 65 years of age. Among patients who were 65 years and older, the mortality rate was 34.5% (19/55), which was significantly higher than that of the younger patients at 4.7% (7/148). Common symptoms of older patients with COVID-19 included fever (94.5%; n = 52), dry cough (69.1%; n = 38), and chest distress (63.6%; n = 35). Compared with young patients, older patients had more laboratory abnormalities and comorbidities. Through a multivariate analysis of the causes of death in older patients, we found that males, comorbidities, time from disease onset to hospitalization, abnormal kidney function, and elevated procalcitonin levels were all significantly associated with death. CONCLUSIONS: In the recent outbreak of COVID-19, our local hospital in Wuhan found that patients aged 65 and older had greater initial comorbidities, more severe symptoms, and were more likely to experience multiorgan involvement and death, as compared to younger patients.


Assuntos
Betacoronavirus/isolamento & purificação , Infecções por Coronavirus , Hospitalização/estatística & dados numéricos , Pandemias , Pneumonia Viral , Fatores Etários , Idoso , COVID-19 , Causas de Morte , China/epidemiologia , Comorbidade , Infecções por Coronavirus/diagnóstico , Infecções por Coronavirus/epidemiologia , Infecções por Coronavirus/mortalidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Insuficiência de Múltiplos Órgãos/diagnóstico , Insuficiência de Múltiplos Órgãos/epidemiologia , Insuficiência de Múltiplos Órgãos/virologia , Pneumonia Viral/diagnóstico , Pneumonia Viral/epidemiologia , Pneumonia Viral/mortalidade , Estudos Retrospectivos , Medição de Risco , SARS-CoV-2 , Índice de Gravidade de Doença , Avaliação de Sintomas/métodos , Avaliação de Sintomas/estatística & dados numéricos
12.
Euro Surveill ; 25(10)2020 03.
Artigo em Inglês | MEDLINE | ID: covidwho-8160

RESUMO

Since December 2019, 62 medical staff of Zhongnan Hospital in Wuhan, China have been hospitalised with coronavirus disease 2019. During the post-discharge surveillance after clinical recovery, swabs were positive in two asymptomatic cases (3.23%). Case 1 had presented typical clinical and radiological manifestations on admission, while manifestation in Case 2 was very mild. In conclusion, a small proportion of recovered patients may test positive after discharge, and post-discharge surveillance and isolation need to be strengthened.


Assuntos
Infecções Assintomáticas , Betacoronavirus/isolamento & purificação , Infecções por Coronavirus/diagnóstico , Transmissão de Doença Infecciosa do Paciente para o Profissional , Alta do Paciente , Faringe/virologia , Pneumonia Viral/genética , Adulto , Betacoronavirus/genética , COVID-19 , Teste para COVID-19 , Técnicas de Laboratório Clínico , Infecções por Coronavirus/genética , Infecções por Coronavirus/transmissão , Infecções por Coronavirus/virologia , Feminino , Hospitalização , Humanos , Masculino , Pneumonia Viral/transmissão , Valor Preditivo dos Testes , Radiografia , Reação em Cadeia da Polimerase em Tempo Real , SARS-CoV-2 , Tomografia Computadorizada por Raios X
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA