ObjectiveTo analyze the clinical characteristics and epidemiological characteristics of patients with coronavirus disease 2019 treated early in Jiangxi province.MethodsFour-night patients with coronavirus disease 2019 treated in this hospital from January 21st to 27th, 2020 were included in this study. The epidemiological and clinical data of patients after admission were collected, and laboratory tests such as blood routine, urine routine, stool routine, liver and kidney function, electrolytes, myocardial enzymes, erythrocyte sedimentation (ESR), C-reactive protein (CRP), calcitonin, coagulation, T cell subset and Chest CT were reviewed. The clinical results of common and severe/critically ill patients were compared.ResultsOf the 49 patients, 40 were common and 9 were severe/critical. Fourty-six patients had a clear history of contact with Wuhan or other areas of Hubei. The sex ratio was 2.06∶1, and the average age was 42.9 years. The symptoms were mainly fever (78.7%), cough (38.8%), and fatigue (18.4%). 28.6% (14 cases) of patients had hypertension and diabetes. Serum lymphocyte count and calcium concentration of the patients were decreased, but lactate dehydrogenase, ESR, CRP and serum amyloid A were increased in these patients. T lymphocyte subsets (CD3+, CD4+, CD8+) decreased significantly in these patients. Forty-seven patients (95.9%) had single or scattered patchy ground glass density shadows on the chest CT. Compared with common patients, the patients with severe/critical patients were older (P=0.023), hospitalized later (P=0.002), and had higher comorbidities (P=0.017). ESR (P=0.001）, CRP (P=0.010) and the serum amyloid A (P=0.040) increased significantly, while CD3+ (P<0.001), CD4+ (P=0.012), CD8+ (P=0.006) decreased significantly in severe/critical patients.ConclusionsThe patients with coronavirus disease 2019 in Jiangxi province are commonly imported from Wuhan. Severe/critical patients are older, hospitalized later, and have more medical complications and more severe systemic inflammatory reactions than common patients.
Objective To study the distribution and drug resistance of pathogens causing hospital-acquired pneumonia (HAP) and explore the related risk factors, so as to provide valuable clinical reference for prevention and treatment of HAP. Methods A case-control study was conducted in a 3700-bed tertiary hospital. Nosocomial infections reported from January 2014 to December 2014 were investigated. A total of 419 inpatients with HAP were enrolled in as a study group, and 419 inpatients without nosocomial infection in the same period and department, with same gender, underlying diseases, and same age, were chosen as a control group. Risk factors of HAP, distribution and drug resistance of pathogens of HAP were analyzed. Results The incidence rate of HAP was 0.62% and the mortality rate was 19.81%. Multivariate analysis identified chronic lung diseases, admission in ICU, two or more kinds of antibiotics used, hospitalization time≥5 days, cerebrovascular disease, and mechanical ventilation were significant risk factors. Totally 492 strains of pathogens were isolated, including 319 strains of gram-negative bacteria, 61 strains of gram-positive bacteria, 112 strains of fungi.Acinetobacter baumannii,Klebsiella pneumonia,Candida albicans,Pseudomonas aeruginosa,Candida glabrata ranked the top five predominant pathogens. Drug resistance rates ofAcinetobacter baumannii to commonly used antibiotics were higher than 75%. Drug resistance rates ofKlebsiella pneumoniae to piperacillin and third-generation cephalosporin were higher than 50%. Conclusions HAP prevails in patients with hospitalization time≥5 days, admission in ICU, cerebrovascular diseases, two or more antibiotics combined used, chronic lung diseases, and mechanicalventilation. It is associated with increased length of hospital stay, decreased quality of life, and elevated morbidity and mortality. The main pathogens of HAP are Gram-negatives.Acinetobacter baumannii andKlebsiella pneumoniae are resistant to the common antibiotics in different degree.
ObjectiveTo retrospectively analyze antibiotic resistance and clinical characteristics of Klebsiella pneumoniae strains for guiding the rational use of antibiotics in the area of the Bai nationality.MethodsThe antibiotic resistance and clinical characteristics of Klebsiella pneumoniae strains were retrospective analyzed, which were isolated from specimens of inpatients in First People’s Hospital of Dali between May 2016 and May 2017.ResultsAmong the 1 342 samples of various kinds of samples, 262 strains of Klebsiella pneumoniae were isolated, with the detection rate of 19.52% (262/1342). Clinical isolated strains were mainly from the new pediatric, intensive care unit, respiratory medicine, pediatrics, and mostly from sputum specimens (78.24%, 205/262). By screening of 22 kinds of antimicrobial agents, all strains had ampicillin resistance (100.00%), while none of these strains had ertapenem resistance. Extended-spectrum β-lactamases (ESBLs) positive strains’ resistance rate was higher than ESBLs negative strains (χ2=261.992, P<0.01). There were 76 drug resistant profiles, most of which were multidrug-resistant bacteria except 116 (44.27%) strains were resistant to ampicillin antibiotics only. And the number of strains in other resistant types ranged from 1 to 16. Only one of 262 strains had amikacin resistance, two of them were resistant to imipenem and meroenan.ConclusionsThere are many multidrug-resistant bacteria in Klebsiella pneumoniae in the population of Bai nationality, and there are no extensively drug resistant bacteria and pandrug-resistant bacteria strains. The strains of carbapene-resistant antibiotics should be worthy of clinical attention.
ObjectiveTo investigate the condensate pollution in the pipeline of severe pneumonia patients undergoing mechanical ventilation.MethodsFrom January 2017 to January 2019, 120 patients with severe pneumonia treated by mechanical ventilation in our hospital were collected continuously. The lower respiratory tract secretions were collected for bacteriological examination. At the same time, the condensed water in the ventilator exhaust pipe was collected for bacteriological examination at 4, 8, 12, 16, 20 and 24 hours after tracheal intubation and mechanical ventilation. The bacterial contamination in the condensed water at different time points was analyzed and separated from the lower respiratory tract. The consistency of bacteria in secretion and drug resistance analysis of bacterial contamination in condensate water were carried out.ResultsOf the 120 patients with severe pneumonia after mechanical ventilation, isolates were cultured in the lower respiratory tract secretions of 102 patients. One strain was cultured in 88 cases, two strains were cultured in 10 cases, and three strains were cultured in 4 cases. The isolates were mainly Gram-negative bacteria (57.5%) and Gram-positive bacteria (42.5%). The most common isolates were Pseudomonas aeruginosa, Staphylococcus aureus and Acinetobacter baumannii. The contamination rate of condensate water was 5.0% at 4 hours, 37.5% at 8 hours, 60.0% at 12 hours, 76.7% at 16 hours, 95.0% at 20 hours, and 100.0% at 24 hours, respectively. The bacterial contamination rate in condensate water at different time points was statistically significant (P=0.000). The pollution rate at 4 hours was significantly lower than that at 8 hours (P=0.000). Gram-negative bacteria accounted for 57.5% and Gram-positive bacteria accounted for 42.5%. The most common isolates were Staphylococcus aureus, Pseudomonas aeruginosa and Acinetobacter baumannii. The consistency of bacteria in lower respiratory tract and condensate water was 83.3% in severe pneumonia patients undergoing mechanical ventilation. The overall resistance of Pseudomonas aeruginosa, Acinetobacter baumannii and Staphylococcus aureus was higher, but the resistance to imipenem/cilastatin was lower.ConclusionsThe bacterial contamination in the condensate of patients with severe pneumonia during mechanical ventilation is serious. The pollution rate is low within 4 hours. It is consistent with the bacterial contamination in lower respiratory tract and the bacterial resistance is high.
Objective To evaluate the effects of inhalation combined intravenous antibiotics for the treatment of ventilator-associated pneumonia. Methods A computerized search was performed through Cochrane library, Joanna Briggs Institute Library, PubMed, MEDLINE, CINAHL, CBM, CNKI and Wangfang medical network about inhalation combined intravenous antibiotics therapy in ventilator-associated pneumonia in the literatures. The data extracting and quality assessment were performed by three researchers. The meta-analysis was performed by RevMan 5.3 software. Results Thirteen studies was included for analysis. The results showed that the cure rate was higher in the experimental group compared with the control group with significant difference (RR=1.16, 95%CI 1.07 to 1.56,P=0.000 5). There were no significant differences in the mortality (RR=1.04, 95%CI 0.82 to 1.32,P=0.74) or the incidence of kidney damage (RR=0.79, 95%CI 0.51 to 1.22,P=0.29). The difference in pathogenic bacteria removal was statistically significant (RR=1.38, 95%CI 1.09 to 1.74,P=0.007). The negative conversion rate of respiratory secretions was higher in the experimental group. Conclusion Inhalation combined intravenous antibiotics can improve the cure rate of patients with ventilator-associated pneumonia, clear pathogenic bacteria effectively, and is worthy of recommendation for clinical use.
Objective To investigate the clinical characteristics and death risk factors of patients with community acquired pneumonia and sepsis. Methods Data of 350 patients with community-acquired pneumonia and sepsis admitted to the Intensive Care Unit of Third Xiangya Hospital of Central South University from January 2015 to October 2021 were retrospectively analyzed, and their basic characteristics, laboratory results and treatment were analyzed. Results The absolute value of white blood cell, neutrophil ratio, absolute value of neutrophil, inflammatory index, liver and kidney function, coagulation function, cardiac enzymology, lactic acid and sequential organ failure evaluation score of patients with community acquired pneumonia sepsis in the non-survival group were higher than those in the survival group. Logistic regression analysis showed that respiratory rate, heart rate, mean arterial pressure, blood oxygen saturation, C-reactive protein, D-dimer, lactic acid, creatinine and lymphocyte ratio may be independent risk factors for 28-day death in patients with community-acquired pneumonia and sepsis.The receiver operating characteristic curve shows that the combination of the above indicators to predict the risk of death of patients has the best sensitivity, specificity and maximum area under the curve, which is superior to the prediction value of individual variables. Conclusions Patients in the non-survivor group of community-acquired pneumonia sepsis had more severe inflammatory response and organ function impairment. Respiratory rate, heart rate, mean arterial pressure, blood oxygen saturation, C-reactive protein, D-dimer, lactic acid, creatinine, lymphocyte ratio and other indicators are independent risk factors for death of patients with community-acquired pneumonia and sepsis, which have better prognostic value when combined.
社区获得性肺炎( CAP) 是严重威胁人类健康的常见疾病之一, 但在其诊断和治疗仍存在相当大的差异。临床路径( clinical pathway, CP) 是一种新的临床诊疗规范管理方式,近年来开始应用于CAP 的临床诊治, 陆续有协会组织开始制定关于CAP 的临床路径, 并应用于临床。
Objective To summarize the clinical characteristics of pneumocystis pneumonia (PCP) secondary to interstitial lung disease (ILD) to improve the prophylaxis and management level of clinicians. Methods The clinical data of 50 patients with PCP secondary to ILD in the Department of Respiratory and Critical Care Medicine of Nanjing Drum Tower Hospital from January 2015 to December 2022 were collected. SPSS 26.0 software was used for statistical analysis. Results A total of 50 patients with PCP secondary to ILD were screened. Among the 50 patients, there were 23 males and 27 females, with a median age of 64 years old. Forty-eight cases (96%) had a history of glucocorticoid therapy with the median duration of 3 months; 31 (77.5%, 31/40) cases developed PCP in the first 6 months after glucocorticoid therapy; 34 cases had a history of glucocorticoid and immunosuppressants at the same time. None of the 50 ILD patients used drugs for PCP prophylaxis before developing PCP. The major clinical manifestations of PCP secondary to ILD were worse cough and shortness of breath or fever. Laboratory results showed 38 cases (76.0%) had peripheral blood total lymphocyte count <200/µL, 27 cases (54.0%) had CD4+ T cell count <200/µL, 34 cases (68.0%) had CD4+ T cell count <300/µL, 37 cases (74.0%) had CD3+ T cell count <750/µL, 34 cases (68.0%) had β-D-glucan test >200 pg/mL, 35 cases (70.0%) had lactic dehydrogenase > 350 U/L and 41 cases (82.0%) had type Ⅰ respiratory failure. High resolution computed tomography showed added ground-glass opacity and consolidation on the basis of the original ILD. Thirty-six cases were detected the Pneumocystis jirovecii by metagenomic next-generation sequencing with broncho-alveolar lavage fluid as the main source, and 2 cases by smear microscopy. All patients were treated with trimethoprim-sulfamethoxazole. After treatment, 29 cases were discharged with a better health condition, 10 cased died, and 11 cases left hospital voluntarily because of treatment failure or disease deterioration. Conclusions After the use of glucocorticoid and immunosuppressants, ILD patients are susceptible to life-threatening PCP. It is particularly important to make an early diagnosis. Attention should be paid to integrate the symptoms, levels of peripheral blood lymphocyte count, β-D-glucan test, lactic dehydrogenase and imaging findings to make an overall consideration. It is suggested to perform next-generation sequencing with broncho-alveolar lavage fluid at an early stage when patients can tolerate fiberoptic bronchoscopy to avoid misdiagnosis and missed diagnosis. ILD patients often develop PCP in the first 6 months after using glucocorticoid and immunosuppressants. During follow-up, peripheral blood CD4+ and CD3+ T cell count should regularly be monitored so as to timely prevent PCP.
Since the establishment in 2016, especially after the outbreak of coronavirus disease 2019 (COVID-19) epidemic, the Hospital Infection Management Quality Control Center of Shuangliu District has carried out quality management and technical ability training for full-time and part-time infection prevention and control personnel through various methods, and used grid management to organize examinations and assessments, inspections and supervision, as well as consultation and assistance. As a result, the culture of infection prevention and control has been deeply rooted in the hearts of the people, the health administrative departments have increased investment in infrastructure and equipment, the funds for infection prevention and control have continued to increase, and the prevention and control quality of COVID-19 and daily works in the region has been continuously improved. The center plays a leading role in the promotion of the standardization, homogenization, and quality improvement of the prevention and control of hospital infection in the district.