Objective:To investigate the clinical characteristics of subclinical tuberculosis in infertile women.Methods:A total of 2 129 infertile women screened for active tuberculosis were collected from January 2019 to January 2024 at Department of Gynecology and Pediatrics Tuberculosis in Xi'an Chest Hospital due to latent tuberculosis infection, and the clinical data of subclinical tuberculosis cases were retrospectively analyzed.Results:The study identified 69 cases [3.2% (69/2 129)] of subclinical tuberculosis among these women. The age at diagnosis was (31.16±4.68) years, with an infertility duration of (3.81±2.58) years. About 94.2% (65/69) of these women had primary infertility. Some patients had adverse reproductive histories, including ectopic pregnancies, repeated assisted reproduction failures, missed miscarriages, and threatened miscarriages. Chest CT scans typically revealed fibrous cord-like consolidations, nodules and calcified nodules, pleural adhesions or minimal pleural effusions, calcification of hilar or mediastinal lymph nodes, and speckled combined with linear proliferative lesions. Hysteroscopic findings included chronic endometritis, endometrial polyps, and intrauterine adhesions. Hysterosalpingography frequently showed bilateral tubal occlusions, stenosis, and hydrosalpinx. Molecular biological assays indicated a lower bacillary load in most cases.Conclusion:The clinical presentation of subclinical tuberculosis in infertile women is often atypical, with pulmonary lesions on chest CT being subtle and indicative of chronic conditions, which are frequently overlooked.

Objective:To investigate the clinical characteristics of subclinical tuberculosis in infertile women.Methods:A total of 2 129 infertile women screened for active tuberculosis were collected from January 2019 to January 2024 at Department of Gynecology and Pediatrics Tuberculosis in Xi'an Chest Hospital due to latent tuberculosis infection, and the clinical data of subclinical tuberculosis cases were retrospectively analyzed.Results:The study identified 69 cases [3.2% (69/2 129)] of subclinical tuberculosis among these women. The age at diagnosis was (31.16±4.68) years, with an infertility duration of (3.81±2.58) years. About 94.2% (65/69) of these women had primary infertility. Some patients had adverse reproductive histories, including ectopic pregnancies, repeated assisted reproduction failures, missed miscarriages, and threatened miscarriages. Chest CT scans typically revealed fibrous cord-like consolidations, nodules and calcified nodules, pleural adhesions or minimal pleural effusions, calcification of hilar or mediastinal lymph nodes, and speckled combined with linear proliferative lesions. Hysteroscopic findings included chronic endometritis, endometrial polyps, and intrauterine adhesions. Hysterosalpingography frequently showed bilateral tubal occlusions, stenosis, and hydrosalpinx. Molecular biological assays indicated a lower bacillary load in most cases.Conclusion:The clinical presentation of subclinical tuberculosis in infertile women is often atypical, with pulmonary lesions on chest CT being subtle and indicative of chronic conditions, which are frequently overlooked.

Objective To improve the compliance of nurses in ICU standard specimen collection of blood culture by six sigma quality management method, so as to improve the quality of blood culture sample submission, to ensure the accuracy of inspection results. Methods A total of 158 nurses in ICU from February 2016 to January 2017 were selected as the research objects. The six sigma quality management method was used to analyze the operation of blood culture samples collected by ICU nurses,and the improvement plan was worked out and implemented. The compliance rate of blood culture samples collected by nurses before and after implementation and the feedback information of laboratory about blood culture specimen quality were compared. Results Before the application of six sigma quality management method, the compliance rate of blood culture specimens collected by ICU nurses was 54.1％(152/281), and the compliance rate after improvement was 88.6％(271/306), and the difference was statistically significant (χ2=86.45, P<0.01). Among the factors influencing nurses' blood culture,the importance of blood culture was not enough, the operation process was not mastered, the relevant knowledge of blood culture was not mastered, and the allocation of related consumables was unreasonable. After implementation,the composition ratio was reduced from 50.4％(65/129), 24.0％(31/129), 45.7％(59/129), 21.7％(28/129) to 17.1％(6/35), 8.6％(3/35), 25.7％(9/35), 2.9％(1/35), and the difference was statistically significant (χ2=4.00- 12.39, P<0.01 or 0.05). The contamination rate of blood culture specimens after six sigma management was 6.2％(19/306) and significantly lower than that of 16. 4％(46/281) before implementation,and the difference was statistically significant (χ2=15.36, P<0.01). Conclusions The six sigma quality management method can improve the nurses' attention to the correct collection of blood culture samples, reveal the defects in the operation, and reduce the irregular behavior of blood culture process. Therefore, the compliance of ICU nurses with standardized blood culture samples is improved, and the contamination rate of blood culture specimens is effectively reduced.

Objective To explore the application effects of quality control circle (QCC) activity in reducing the peripherally inserted central venous catheters (PICC) maintenance missing rate of discharged tumor patients. Methods Firstly, QCC method was applied to set up the activity topic and carry out investigation of the status quo. Secondly, the targets were set up by analyzing the reasons for the missing of PICC maintenance of the discharged tumor patients. The appropriate measures were established and implemented by strengthening the maintenance point nurse PICC training, expanding the province's PICC maintenance network, enhancing patients' awareness for the importance of PICC maintenance, and the effects were evaluated in the end. Results The missing rate of the discharged tumor patients decreased from 40.00% to 10.92%. The target yield rate was 112.19% and the progressive rate was 78.70%. The number of the PICC maintenance network stations in the whole province increased from 21 to 96, and was constantly increasing. The pass rate of the maintenance increased from 76.02% to 96.00%. Patients and their families recognized these advances. Conclusions The QCC activity not only reduces the missing rate of PICC maintenance of the discharged tumor patients, enhances the percentage of the pass rate the maintenance, but also improves the QCC members' problem solving ability, sense of responsibility, cohesion and other comprehensive qualities.

In order to observe the damaged nerve successively, we used superficial magnetic stimulation motor evoked potential (MEP) in the pathological model of chronic compressed nerve of the cervical nerve roots of cats. We synthesized various change of the pathomorphology of the nerve damaged to different degrees, and discussed the relationship between the MEP and the pathomorphologic change of chronic compressed nerve roots. The results showed that the initial pathologic change of nerve with myelin was degeneration of myelin shealth. The MEP of the nerve also showed increased latency and dispersed wave forms. After that the axon of the demylinated nerve degenerated, splitted and had a peripheral Wallerian Degeneration. The MEP showed an increased latency along with decreased amplitude. The degree of the MEP's change accompanyed with pathologic change. So we believe that the magnetic compressed nerve. It has some reference value in figuring out the damage by analysing factors.

To determine whether the pathological changes caused by injury to the spinal cord can be correlated with values obtained by the Magnetic Motor Evoked Potential (MEPs) technique, we studied spinal cords from 41 adult cats who were divided into 4 groups. The groups ranged from normal cats whose spinal cords were not compressed, to slightly, moderately and severely injured. MEPs were recorded before compression and in 30 minutes, 6 hours, 1 week, 2 week and 4 week after the compression unit was installed. Pathological changes with increased pressure were seen in blood vessels, nerve cells and fibers, Nissl substance and the central canal. A reversal of pathological changes was observed in slight or moderate injury during the 4 weeks of the experiment. Extensive injury, however, caused irreversible changes in the nerve cells with loss of motor function. The latency of MEPs at 30 minutes and 6 hours in the slightly injured group was 0.37 and 0.38 times greater than the baseline and returned to normal levels in 4 weeks. In the moderately injured group, the latency was increased 0.77 and 0.81 times and in the severely injured 1.32 and 1.36 times over the baseline. Recovery in the second group was partial and not at all in the severely injured. Thus, there appears to be good correlation between observed pathological changes, motor functions and MEPs.