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@#Objective To summarize the results of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) IgG antibody, total antibody and cellular immune function of COVID-19 convalescent patients one year after discharge, and to analyze the correlation between the SARS-CoV-2 antibody and the indexes of immune function. Methods A total of 41 confirmed COVID-19 patients discharged from Chengdu Public Health Clinical Medical Center from January to April 2020 and followed up one year after discharge were included in the study as the research group, including 18 males and 23 females with an average age of 47.83±12.95 years. The results of SARS-CoV-2 IgG, total antibody and immune function indexes one year after discharge were collected in order to discuss the correlation of SARS-CoV-2 and cellular immune function. A total of 40 healthy employees of the hospital vaccinated against COVID-19 were randomly selected as the vaccine group, including 10 males and 30 females with an average age of 43.90±6.86 years. The SARS-CoV-2 antibodies between the two groups were compared. Results CD8+T cell count was higher and CD4+T/CD8+T was lower in male patients than those in female patients (all P<0.05). The IgG and total antibodies in patients with re-detectable positive RNA test were both higher than those in patients without re-detectable positive RNA test, but the differences were not statistically significant (P=0.158, 0.060). The positive rate of SARS-CoV-2 IgG in the research group was 80.5% (33/41). SARS-CoV-2 IgG was positively correlated with total antibody (P<0.001). There was a positive correlation between CD4+T cell count and SARS-CoV-2 IgG (r=0.455, P=0.003). The positive rate of SARS-CoV-2 IgG, SARS-CoV-2 IgG amount and total antibody amount in the research group were significantly higher than those in the vaccine group (all P<0.001). Conclusion SARS-CoV-2 IgG of most COVID-19 patients one year after discharge is positive, and their SARS-CoV-2 total antibody is significantly higher than people vaccinated against COVID-19, which suggests that patients infected with SARS-CoV-2 can obtain lasting protection, but the protection may be gradually weaken over time. The degree of antibody attenuation in patients with re-detectable positive RNA test may be weaker. In the convalescence stage, the dynamics of SARS-CoV-2 IgG may be closely related to cellular immune function.
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@#Objective To analyze the clinical features and prognosis of coronavirus disease 2019 (COVID-19) patients. Methods A total of 379 confirmed COVID-19 patients admitted to Public Health Clinical Center of Chengdu from January 16 to November 30, 2020 were divided into two groups including an elderly group (42 patients, ≥60 years) and a non-elderly group (337 patients, <60 years) by age. The epidemiology, clinical features, laboratory tests, treatment and prognosis of the two groups were compared. Results Among the 379 patients, 286 (75.5%) were males and 93 (24.5%) were females, aged from 2 months to 87 years, with an average age of 41.2 years. The average age of the elderly group was 69.5 years, and 61.9% of them were females. They were imported from Wuhan or local secondary patients (73.8%), mainly common or critical type (88.1%). While, the average age of the non-elderly group was 37.8 years, and males were more common (80.1%). There were mostly from foreign input (75.7%), mainly mild or ordinary type (95.0%). A total of 179 patients (47.2%) had one or more underlying diseases. Hypertension (15 patients, 35.7%) and diabetes (11 patients, 26.2%) were more common in the elderly group, while non-alcoholic steatohepatitis (132 patients, 39.2%) was more frequent in the non-elderly group. The most common clinical manifestations were fever (138 patients, 36.4%) and cough (129 patients, 34.0%). Fever, cough, dyspnea, and fatigue were more common in the elderly group than those in the non-elderly group (P<0.05). Compared with the non-elderly group, the elderly group had lower total lymphocyte count, CD4+ and CD8+ T-cell count, higher level of myocardial injury or inflammation markers (P<0.05). Abnormal echocardiography in 139 patients (36.7%) was mainly caused by decreased left ventricular diastolic function (22.7%) and heart valve regurgitation (14.0%), and the rate in the elderly group was significantly higher than that in the non-elderly group (85.7% vs. 30.6%, P<0.05). After treatment, 3 patients in the elderly group died, and the others were cured and discharged. The hospitalization duration of the elderly group was longer than that of the non-elderly group (22.1 d vs. 18.8 d, P=0.033). Conclusions Elderly COVID-19 patients are mainly imported from Wuhan or secondary to the local population, mainly common or critical type, often associated with basic diseases such as hypertension or diabetes. While, non-elderly COVID-19 patients are mainly imported from abroad, mainly mild or common type, often associated with non-alcoholic steatohepatitis. After treatment, most of the patients have a good prognosis.
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Objective To study clinical characters and prognosis of AIDS patients with opportunistic infections in Sichuan prov-ince .Methods We performed an retrospective analysis of 1 465 AIDS patients with opportunistic infections who were admitted into the transmitted disease hospital of Chengdu in recent 10 years .Results The overall mortality during hospitalization was 15 .49% . The leading cause of death was respiratory failure due to pneumonia (n=150 ,74 .62% ) or meningitis(n=47 ,23 .86% ) .Descending rank order of common opportunistic infections were respiratory tract ,the mouth swallows ,central nervous system ,gastrointestinal tract skin ,blood system .Descending rank order of common sites of infections were respiratory tract ,oropharynx ,central nervous system ,gastrointestinal tract skin ,reproductive tract .The multiple infections are common :more than 50% of patients suffering from two or more infections(50 .77% ) .Complexity of infection sites :42 .18% dual infection sites and 17 .20% three or more infec-tion sites .Conclusion The opportunistic infections disease spectrum of AIDS in Sichuan area has its own characteristics :multiple infections and multiple infections sites are both common ,death risks are high ,conditions of patients are severe generally ,and respir-atory failure is the main cause of death .
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Objective To investigate the prevalence of diabetic foot(DF) in the hospitalized diabetic patients and analyze the clinical characteristics and therapeutic efficacy of patients with diabetic foot. Methods The 313 patients (180 males and 133 females) were divided into two groups：group A (1/1996-12/2003) and group B (1/2004-12/2006). Results 2.79% of the hospitalized diabetic patients had diabetic foot. The mean age and duration of diabetes were 66±10 years old and 9.33±6.52 years respectively, the mean duration of diabetic foot was 8.13±17.06 months and the average days in hospital was 29.62±28.36d. Many patients suffered from diabetic nephropathy, cataracts, retinopathy, neuropathy, vascular disease, hypertension, infection, and so on. The blood pressure and blood glucose were poorly controlled in many of the patients. Of all patients, 28.1% were completely healed, 40.6% were improved without amputation and 31.3% had not healed at the time of death or follow-up (including 9.3 % of them were amputated in leg and 6.2% were dead). But group B versus group A showed higher cure rates of DF (37.04 % vs 18.54 %). Conclusions The prevalence of DF in the hospitalized diabetic patients is gradually increased, most patients with DF accompany with one or multiple other complications. A multifactorial treatment by a multidisciplinary foot care team is a superior treatment strategy for improving prognosis of patients with DF.