Objective To analyze the differences in microbial communities in bronchoalveolar lavage fluid (BALF) from patients with simple pneumonia versus those with chronic obstructive pulmonary disease (COPD) combined with lower respiratory tract infection using metagenomic next-generation sequencing (mNGS). Methods Patients hospitalized for pulmonary infections at the First Affiliated Hospital of Xinjiang Medical University between December 2021 and March 2023 were included. Based on the presence of COPD, the patients were divided into two groups: those with simple pneumonia and those with COPD combined with lower respiratory tract infection. mNGS was employed to detect microbes in BALF, and the microbial community distribution characteristics of the two groups were analyzed. Results A total of 97 patients were included, of whom 80 (81.82%) had positive microbial detection results. The smoking index in COPD group with lower respiratory tract infection was significantly higher than that in the group with simple pneumonia (t= −3.62, P=0.001). Differences in microbial community distributions were observed between the groups. At the genus level, 19 species of microorganisms were detected in the simple pneumoniapulmonary infection group, including 8 bacteria (42.11%), 2 fungi (10.53%), 3 viruses (15.79%), and 6 other types of microorganisms (31.58%). In contrast, 22 types of microbes were detected in COPD group with lower respiratory tract infection, including 10 bacteria (47.62%), 3 fungi (14.29%), 4 viruses (19.05%), and 4 other types of microorganisms (19.05%). Differences were also noted in reads per million (RPM) values; bacterial RPM values at the genus level were significantly higher in the COPD group during non-severe pneumonia compared to the simple pneumonia group (Z=–2.706, P=0.007). In the patients with severe pneumonia, RPM values at the genus and species levels were significantly higher than those in non-severe pneumonia (Z=−2.202, P=0.028; Z=−2.141, P=0.032). In COPD combined with severe pneumonia, bacterial RPM values were significantly higher at the species level compared to non-severe pneumonia (Z=−2.367, P=0.017). ConclusionsThere are differences in the distribution of microbial communities at the genus and species levels in BALF from patients with COPD combined with lower respiratory tract infection compared to those with simple pulmonary pneumonia. Bacteria are the predominant microbial type in both groups, but the dominant bacterial species differ between them. Simple pneumonia are primarily associated with bacterial, viral, and other types of microbial infections, while COPD combined with lower respiratory tract infection is predominantly associated with fungal and bacterial infections. RPM values may serve as an indicator of the severity of pneumonia.
Objective To explore whether hospitalized elderly patients with severe communityacquired pneumonia ( SCAP) have better outcomes if they are treated with dual-therapy consisting of a β-lactam/macrolide or fluoroquinolone.Methods A prospective study was conducted in patients with SCAP aged 65 years or older between January 2007 and January 2012. These patients were assigned to a combination therapy group or a β-lactam monotherapy group by the attending physicians. Time to clinical stability( TCS) and total mortality were calculated. Prognostic factors for death were analyzed. Results Among the 232 patients, 153 patients were given β-lactam/macrolide or β-lactam/ fluoroquinolone ( macrolide in 67 patients and fluoroquinolone in 86) , while 79 were treated with β-lactam monotherapy. Compared with the monotherapy group, the combination therapy group was associated with significant decreased TCS ( median TCS, 10 days vs. 13 days) , and lower overall in-hospital mortality( 24.2% vs. 43.0%, P lt;0. 01) . Compared with fluoroquinolone, macrolide use was associated with lower ICU mortality ( 14.9% vs. 31.4% , P lt;0. 01) . Simplified acute physiology score Ⅱ, pneumonia severity index, mutilobar infiltration, and β-lactam monotherapy were confirmed as independent predictors of death. Conclusion β-lactam/macrolide or β-lactam/ fluoroquinolone combination therapy, especially with macrolide, has superiority over β-lactam monotherapy in elderly patients with SCAP, and should be recommended.
摘要:目的: 观察免费治疗社区精神分裂症患者的疗效。 方法 :纳入贫困家庭精神分裂症患者140例,随机分为免费服药组和对照组,每组70例。随访1年,采用精神分裂症阳性与阴性症状量表(PANSS)\社会功能缺陷量表(SDSS)等评估。 结果 :对实验组与对照组的基线、6个月后及1年后随访的PANSS总分、各因子分、SDSS总分分别进行比较,结果显示基线、6月后均无统计学差异;1年后SDSS总分、PANSS总分、阳性因子分、一般病理因子、思维障碍、偏执因子分差异有显著性;免费治疗组1年后各指标与入组前相比分值降低(P＜001)。 结论 :精神分裂症患者免费服药后精神症状缓解明显,同时其社会功能缺陷也得到改善。Abstract: Objective: To observe the effect of the free treatment on schizophrenics from community. Methods : Totally 140 subjects from poor family were divided into the free treated group and the control group at random. They were followed up for 1 year. The treatment effects were evaluated by PANSS and SDSS. Results : There were no significant difference in all examinations at baseline and after 6 months; at the following end point, significant difference existed in the score of SDSS, the total scores of the PANSS, the positive factor, the general pathology factor, the thinking factor and the paranoid ideation factor between two groups. There was decrease in the scores for all examinations in the free treated group. Conclusion : The symptoms of schizophrenics by free treatment relieve significantly, and the social function improves.
ObjectiveTo explore procalcitonin (PCT) dynamically in severe community-acquired pneumonia (SCAP) patients to evaluate the effects of different kinds of medical treatments and assess the clinical significance of the change of PCT. MethodsAll of the selected 60 SCAP patients treated from January 2009 to April 2011 met the standards of IDSA/ATS Guidelines for CAP. There were 38 males and 22 females, with an average age of 66.3 years. The sterile venous blood specimen samples were collected from the patients at day 0 to day 5. PCT and C-reactive protein (CRP) were measured by enzyme linked immunosorbent assay throughout the research. At day six, based on oxygenation index (PaO2/FiO2) ratio higher than 250, inflammation absorption on chest X ray after vasoactive agents were stopped, Glasgow scores higher than 10 and urine volume equal to or higher than 0.5 mL/(kg·d), we divided the patients into recovery group and deterioration group. Data were analyzed by SAS 9.0 software, and P<0.05 was considered to be statistically significant. ResultsThe analysis results showed that PCT and CRP bore a significantly positive relationship on day 0 (r=0.38, P=0.00). The research also indicated that PCT had a faster declining rate than CRP and white blood cells count throughout the clinical treatment. The average of PCT declined 29% in 48 hours. Following the criterion of PCT decrease by 30%, the research showed that PCT had a higher sensibility and specificity (66.87% and 85.50%, respectively) in 48 hours than 72 hours (70.05% and 100.00%), 96 hours (79.88% and 75.23%), and 120 hours (83.10% and 100.00%). ConclusionFollowing the criterion of PCT decrease by 30% after using antibiotics can be an clinical objective index to guide the use of antibiotics and provide the basis for clinical application and prognosis.
Objective To investigate the clinical characteristics and risk factors associated with death in critically ill patients with severe community-acquired pneumonia( CAP) .Methods A retrospective analysis was carried out in 125 hospitalized patients with severe CAP admitted from July 2008 to February 2012. Earlier clinical features were compared between 109 survival patients and 16 dead patients, and logistic regression analysis was conducted. Results The death group had more underlying diseases than the survival group( P lt;0. 05) . The heart rate at admission in the death group was significantly higher than that in the survival group( P lt;0.05) . The ratio and number of complication, the highest temperature before admission, the platelet count, the arterial blood pH, PaO2 and PaO2 /FiO2 in the death group were significantly lower than those in the survival group( P lt; 0. 05) . Logistic regression analysis showed that the number of underlying diseases, heart rate and PaO2 were predictors of death in the patients with severe pneumonia. Conclusion The number of underlying diseases, heart rate and PaO2 has highly predictive value of death for severe CAP.
ObjectiveTo explore the clinical value of the soluble urokinase type plasminogen activator receptor (suPAR) level in bronchoalveolar lavage fluid (BALF) for evaluateting the disease severity and prognosis of severe community-acquired pneumonia (SCAP). MethodsEighty-four patients with SCAP were recruited as a SCAP group from the respiratory department, ICU and RICU between April 2014 and April 2016. According to their organ dysfunction, the SCAP patients were subdivided into a MODS group and a non-MODS group. Depending on the treatment response on the 7th day of treatment, they were subdivided into an effective group and an ineffective group. According to the survival condition within 28 days, they were subdivided into a survival group and a death group. Meanwhile, 50 cases with non-severe common community acquired pneumonia were recruited as a control group. On the admission day, all cases were evaluated by PSI score and APACHE Ⅱscore. The serum suPAR level were detected by ELISA on the 1st day in hospital. The suPAR and procalcitonin (PCT) levels in the patient's BALF and serum were detected on the 1st, 3rd, 7th day, discharge or death day. The symptoms and signs, biochemical and pulmonary imaging changes were also observed. ResultsThere were no differences in the sex, age, body weight, duration of pneumonia, or complicated diseases such as hypertension, coronary heart disease and cerebral vascular diseases between the SCAP group and the control group (all P > 0.05). The suPAR levels in serum and BALF of the SCAP group were higher than those of the control group with significant differences (all P < 0.05). The suPAR level in BALF was obviously higher than that in serum in the SCAP group with significant difference (P < 0.05), and slightly higher than that in serum in the control group with no significant difference (P > 0.05). The level of suPAR in BALF of the MODS group was significantly higher than that in the non-MODS group with significant difference (P < 0.05), but there was no significant difference in the PCT level between the two groups (P > 0.05). The suPAR level in the ineffective treatment group was significantly higher than that in the effective treatment group on the 7th day in hospital with significant difference (P < 0.05). The suPAR levels in BALF of the death group were higher than those in the survival group at each time point after admittion with significant difference (all P < 0.05), and the PCT levels had no significant difference between the two groups within 1 week of each time point (all P > 0.05). The suPAR level in BALF of the SCAP group was positively correlated with APACHEⅡ score and PSI score (r=0.578, P=0.0085; r=0.565, P=0.0071), and plasma PCT level was weakly correlated with the APACHEⅡ score and PSI score (r1=-0.0137, r2=-0.0152). ConclusionThe SuPAR level in BALF of patients with SCAP is closely related to the severity and prognosis, and can be used as an index to assess the severity and prognosis.
ObjectiveTo construct the general practice tutors’ ability system in community training bases under the background of hospital-community integrated teaching of general practice.Methods From January to April 2021, literature analysis, expert group consultation, in-depth interview and questionnaire survey were conducted to construct the grass-roots general practice tutors’ ability system, and exploratory factor analysis method was applied, using main component analysis to extract the competency elements. Results There were 4 first level indicators and 20 second level indicators in the system, among which the first level indicators were personal characteristics and professionalism, teaching and research ability, basic level clinical practice ability, and base organization management ability. Conclusion This research enriches the indicators and connotations of the general practice tutors in community training base of general practice, and provides empirical research basis for the selection, ability training and performance evaluation of tutors in community practice bases of general practice medicine.
Objective To discuss the running effect of the modified hospital-community integrated two-way-referral service mode in day surgery. Methods The hospital-community integrated two-way-referral service mode in day surgery was built in May 2014 by our center, and applied in the communities’ health service network in Chenghua District, Wuhou District, and Jinjiang District. From March 2017 some improvements of the mode were made, such as assigning specific person for the management of two-way-referral, conducting lectures in communities to train the community medical staff, and carrying out gratuitous treatment. The community acceptance rate and patients satisfaction were retrospectively analyzed between March of 2016 and March of 2017, and the number of upward referral (from community to hospital) was retrospectively analyzed between March to June of 2016 and March to June of 2017. Results The community acceptance rate was elevated from 81.3% to 99.1% and the patients satisfaction was improved from 95.4% to 100.0%, and the differences between the two periods were statistically significant (P<0.05). The number of upward referral increased from 0 to 23. Conclusions The modified hospital-community integrated service mode could optimize the course of surgery appointment, and make it convenient for patients. Furthermore, it also adjusts the reasonable allocation of medical resource effectively and promotes the implementation of national hierarchical medical system.
ObjectiveTo evaluate the reasonableness of anticoagulation management strategy in patients after mechanical heart valve replacement. MethodsAll patients were followed and registered continually at outpatient clinic from July 2011 to February 2013, with a minimum of 6 months after surgery. Targeted international normalized rate (INR) 1.60 to 2.20 and warfarin weekly dosage adjustment were used as the strategy of anticoagulation management. Except bleeding, thrombogenesis and thromboembolism, time in therapeutic range (TTR) and fraction of TTR (FTTR) were adopted to evaluate the quality of anticoagulation management. ResultsA total 1 442 patients and 6 461 INR values were included for data analysis. The patients had a mean age of 48.2±10.6 years (14-80 years) and the following up time were 6 to 180 months (39.2±37.4 months) after surgery. Of these patients, 1 043 (72.3%) was female and 399 (27.7%) was male. INR values varied from 0.90-8.39 (1.85±0.49) and required weekly doses of warfarin were 2.50-61.25 (20.89±6.93 mg). TTR of target INR and acceptable INR were 51.1% (156 640.5 days/306 415.0 days), 64.9% (198 856.0 days/306 415.0 days), respectively. FTTR of target INR and acceptable INR were 49.4% (3 193 times/6 461 times), 62.6% (4 047 times/6 461 times). There were 8 major bleeding events, 7 mild bleeding events, 2 thromboembolism events, and 2 thrombogenesis in the left atrium. ConclusionIt is reasonable to use target INR 1.60-2.20 and warfarin weekly dosage adjustment for patients after mechanical heart valve replacement.
Objective To explore the thromboembolic events and mortality in patients with different types of severe pneumonia, and to analyze the related high-risk factors. Methods A total of 161 severe pneumonia patients who admitted in intensive care unit from January 2018 to February 2023 were included in the study. The patients were divided into a COVID-19 group (n=88) and a community-acquired pneumonia (CAP) group (n=73) according to the type of pneumonia, and divided into a thrombosis group and a non-thrombosis group according to the occurrence of thrombosis. The patients were followed-up until discharge or in-hospital death, registering the occurrence of thrombotic events. Results During the in-hospital stay, 32.9% of CAP and 36.4% of COVID-19 patients experienced thrombotic events (P>0.05). In CAP group all the events (including 24 paitents) were venous thromboses, while in COVID-19 group 31 patients were venous and 3 were arterial thromboses (2 were cerebral infarction, and 1 with myocardial infarction). There were statistically significant difference in gender, age, venous thromboembolism score (VTE score), activated partial thromboplastin time (APTT), and procalcitonin (PCT) between the TE group and the Non-TE group. Logistic regression analysis showed that thrombotic events was associated with sex, age and APTT; gender (female: OR=2.47, 95%CI 1.13 - 5.39, P<0.05) and age (OR=1.04, 95%CI 1.01 - 1.07, P<0.05) were positively associated with thrombotic events. During the in-hospital follow-up, 44.3% of CAP patients and 42.5% of COVID-19 patients died (P>0.05). Receiver operator characteristic (ROC) curve analysis showed that APACHEⅡ score was more accurate in predicting mortality of severe pneumonia, and the area under the ROC curve (AUC) was 0.77 (95%CI 0.70 - 0.84, sensitivity 74.3%, specificity 68.1%), the AUC of the VTE score was 0.61 (95%CI 0.53 - 0.70, Sensitivity 31.4%, specificity 81.7%); the AUC of the creatinine was 0.64 (95%CI 0.56 - 0.73, sensitivity 72.9%, specificity 51.2%). While the Kappa value for kidney disease was 0.409 (P<0.05) presenting moderate consistency. Conclusions The incidence of thromboembolic events and mortality are high in patients with different types of severe pneumonia. Thrombophilia was associated with sex, age, and APTT. APACHEⅡ score, VTE score, and creatinine value were independent risk factors for predicting death from severe pneumonia.