1.Development of Colposcopy Graphics Reporting System
Chinese Medical Equipment Journal 2003;0(12):-
Objective To develop a graphic reporting system,which should have good scalability,and be able to connect with the hospital information system,to restore the operation of colposcopy.Methods The system adopted multi-layer C/S structure.Microsoft SQL Server database platform was used in data layer.Application service layer and client application were developed with Delphi.ADO components were integrated into application service layer to connect the database.Client applications and application service layers communicated with each other through the SOCKET protocol.Image processing module was based on the acquisition hardware design,using the development kits provided by the hardware merchant to achieve acquisition and processing functions.Results The graphic reporting system achieved real-time image acquisition,and possessed the function of flexibly generating reports.Besides dynamic setting of the menu,the system was even innovative in achieving the report's custom settings,which could be easily carried out in different departments because of its capability of setting up totally different kinds of report contents and output format according to different demands.Conclusion The graphic reporting system meets the design requirements for restoring the operation of the original colposcopy equipment.Furthermore,it is innovative among the similar systems in achieving a dynamic interface design,which has a good scalability to meet the demand for similar departments.It resolves the problem of developing the hardware-based personalized image acquisition software,so that it can effectively reduce the operational costs.
2.Changes of Pathogens and Antimicrobial Resistance of Nonfermenting Gram-negative Bacilli in Intensive Care Unit
Qinggang GE ; Zongyu WANG ; Zhenhong YIN ; Xi ZHU ; Gaiqi YAO
Chinese Journal of Nosocomiology 2009;0(16):-
OBJECTIVE To study the isolation status and antimicrobial resistance of nonfermenting Gram-negative bacilli collected from intensive care unit(ICU) of our hospital so as to instruct the rational clinical application of antibiotics.METHODS The antimicrobial resistance of nonfermenting Gram-negative bacilli isolates collected from patients in ICU from Jan 2003 to Dec 2007 was analyzed.Antimicrobial susceptibility of clinical isolates were tested by Kirby-Bauer method.RESULTS Total 384 nonfermenting Gram-negative bacilli isolates were collected in 5 years.The most common species were Acinetobacter baumannii(219),Pseudomonas aeruginosa(117) and Stenotrophomonas maltophilla(36).The antimicrobial resistance rate of nonfermenting Gram-negative bacterial to most antibiotics were much higher.The antimicrobial resistance rate of Acinetobacter spp to imipenem,cefoperazone/sulbactam and piperacillin/tazobactam was 3.7%,28.3% and 42.9%.But the resistance rate of Acinetobacter spp to imipenem was increased in recent 2 years(58.0%).The antimicrobial resistance rate of P.aeruginosa to cefoperazone/sulbactam was the lowest.That of imipenem-resistant P.aeruginosa to cefoperazone/sulbactam was 34.0%.S.maltophilla was relatively susceptible to ceftazidime,cefoperazone/sulbactam and piperacillin/tazobactam.CONCLUSIONS Nonfermenters Gram-negative bacilli are the important pathogens in ICU.Surveillance of their prevalence and drug resistance may provide evidences for rational antibiotic choices.
3.The diagnostic value of metagenomic next-generation sequencing in pulmonary infectious diseases
MENG Beibei ; LIU Haichao ; HU Zhenhong ; QU Lei ; FANG Yao
China Tropical Medicine 2023;23(11):1173-
Abstract: Objective To compare the application value of metagenomic next generation sequencing (mNGS) with traditional culture in diagnosis of pulmonary infection pathogens. Methods The clinical documents of 310 patients with suspected pulmonary infection admitted to the General Hospital of Center Theater Command from February 2021 to September 2022 were retrospectively analyzed. The results of mNGS and traditional culture were analyzed, followed by comparison on the positive rate, sensitivity, specificity, accuracy (ACC), positive predictive value (PPV) and negative predictive value (NPV) between the two methods. Results The study revealed that mNGS can simultaneously detect multiple pathogens, with the highest efficiency of detection for bacteria and the lowest for fungi. And the sequencing numbers of bacteria, fungi and viruses shown by mNGS were significantly different (H=70.361, P<0.001). In comparison, mNGS displayed a higher positive detection rate (88.40%) than traditional culture (29.70%) (χ2=162.373, P<0.001), but the consistency between the two methods was not significant (Kappa = -0.003, P=0.902). The sensitivity, specificity, ACC, PPV and NPV of mNGS were 91.29%, 28.26%, 81.94%, 87.96%, and 36.11% respectively, compared to corresponding 30.30%, 73.91%, 36.77%, 86.96% and 15.60% of traditional culture respectively. Through analysis, it is confirmed that the sensitivity and specificity between the two methods were statistically significant (91.29% vs 30.30%, χ2=148.120, P<0.001 and 28.26% vs 73.91, χ2=13.793, P<0.001). Conclusions mNGS can significantly improve the detection rate of pathogens in pulmonary infections and provide a complementary tool besides to traditional culture method for accurate anti-infection therapy. Furthermore, both traditional culture and mNGS pathogen detection methods are highly dependent on sample quality and detection quality control. mNGS requires the correct interpretation of comprehensive, non-destructive pathogenic genetic information to accurately identify pathogens.
4.Ultrasonographic analysis of mass-type cornual pregnancy
Na, SU ; Qing, DAI ; Yuxin, JIANG ; Zhenhong, QI ; Meng, YANG ; Yao, WEI
Chinese Journal of Medical Ultrasound (Electronic Edition) 2014;(9):749-754
Objective To summarize the sonographic features and differential diagnosis points of mass-type cornual pregnancy. Methods The sonographic ifndings of 23 pathological proven mass-type cornual pregnancy cases enrolled in PUMCH from 2011 January to 2013 January were retrospectively analyzed. Results All pathological proven mass-type cornual pregnancy were located at one corner of the uterus presenting as a heterogenous outward mass. Well-deifned margins were found in 20 cases, and interstitial-line signs were found in 15 cases. The surrounding muscle thickness is 0.1-0.3 cm. Typical hyperechoic villi were found on sonography in cases with bloodβ-hCG>20 000 IU/L. On Doppler, the lesion showed abundant peripheral vascularity with low resistance in 22 cases, 9 lesions also showed abundant internal vascularity. Among 23 mass-type cornual pregnancy cases, 7 cases were misdiagnosed as gestational trophoblastic neoplasia (GTN) due to the similar sonographic characteristics including mixed-echo and abundant vascularity with low resistance. Sixteen cases were diagnosed by ultrasound preoperatively, with featured sonographic signs including mass located in the endometrial extension line;clear margin;peripheral vascularity;or detection of interstitial-line sign and typical villus. Conclusions Mass-type cornual pregnancy may be correctly diagnosed according to the location, boundary of the mass and the distribution of blood flow combining with clinical manifestation and bloodβ-hCG level. Transvaginal sonography could play an important role in diagnosis of cornual pregnancy.
5.Application of cluster nursing on expectoration in mechanical ventilation patients after craniocerebral injury
Mingya YAO ; Zhenhong FANG ; Xiaohe CHEN ; Xiao DONG ; Xianghe LU
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2018;25(2):194-200
Objective To explore the effect of using cluster nursing measures on expectoration in mechanical ventilation patients after craniocerebral operation. Methods Convenient sampling and controlled trials at not the same period were used. Sixty-seven mechanical ventilation patients after craniocerebral operation were selected as the research objects in Department of Neurosurgery Intensive Care Unit (ICU) of the First Hospital Affiliated to Wenzhou Medical College. Thirty-two patients treated from June 2015 to June 2016 were assigned in the control group, and they were given routine respiratory nursing care; 35 patients admitted and treated from July 2006 to July 2017 were included in the intervention group, and they were given evidence-based cluster nursing intervention measures on the basis of routine care. The differences in expectoration effect, arterial blood gas analysis index, incidence of pulmonary infection and prognosis of patients in two groups were compared. Results Compared with control group, the amount of expectoration in the intervention group was significantly increased (mL/d: 49.69±9.45 vs. 33.72±10.63, P < 0.05), while the daily number of sputum suction (times: 21.57±2.31 vs. 28.76±22.66), the time needed for each sputum suction(s: 6.81±1.74 vs. 9.28±2.52), respiratory frequency (bpm: 26.26±1.83 vs. 28.58±1.36), incidence of pulmonary infection [0 vs. 12.5% (4/32)], time of mechanical ventilation (days: 6.37±2.51 vs. 8.92±3.32), time of ICU stay (days: 7.49±3.87 vs. 10.33±2.12), time of hospital stay (days: 10.31±1.99 vs. 14.56±3.57), fatality rate [8.6% (3/35) vs. 21.9% (7/32)] in the intervention group were significantly decreased (all P < 0.05); after treatment the arterial partial pressure of oxygen (PaO2) and pulse oxygen saturation degree (SpO2) were significantly increased than those before treatment, and the arterial partial pressure of carbon dioxide (PaCO2) was significantly decreased than that before treatment, and the degrees of improvement in the intervention group on 5 days were significantly better than those in the control group [PaO2(mmHg, 1 mmHg = 0.133 kPa): 60.89±3.44 vs. 57.34±2.49, PaCO2(mmHg): 41.06±4.32 vs. 45.22±4.78, SpO2: 0.986±0.030 vs. 0.963±0.023, all P < 0.05]. Conclusion The cluster nursing measures can effectively improve the expectoration effect for mechanical ventilation patients after craniocerebral surgery, reduce the mortality and incidence of pulmonary infection, shorten the stay in ICU and improve the prognosis, suggesting that the measures be worthy to be applied widely in clinics.