Aim To optimize the traditional method of right catheterization in rats and establish a rapid , stable and reliable method of the right heart catheter guided intubation to measure pulmonary artery pressure. Methods Nighty male wistar rats were used to optimize the method of detection of pulmonary arte-rial pressure. Three catheter namely PE50, PU I, and PU II were used for choosing the best intubation. The new technology of right catheterization was established and used for the research of pulmonary arterial hypertension. Results The PU I catheter was obviously better than PE50 and PU II catheter in the success rate and measurement time ( P <0. 05 ) . The method of right heart catheter guided intubation was significantly superior to the traditional right heart direct intubation (P<0. 05 or P<0. 01). After improving the right catheterization, the detection of hemo-dynamic indexes in PAH-model rat was successful with regular pressure curve and reliable experimental data. Conclusions The right heart catheter guided intubation method has a high suc-cess rate and it can detect the pulmonary artery pressure quick-ly, easily, and can help other researchers to complete experi-ment as efficiently as possible.

OBJECTIVE To investigate the effects of obstructive sleep apnea hypopnea syndrome on the quality of life of the patients. METHODS The quality of life was assessed with the Medical Outcomes Study SF-36 Health Survey in 145 patients with OSAHS and 17 snorers without OSAHS. Excessive Daytime Sleepiness was assessed with Epworth Sleepiness Scale. Pearson linear correlation and stepwise multiple regression analysis were used to study the association between each domain score of SF-36 and patients information,PSG parameters,EDS scores. RESULTS Three domains of SF-36 correlated negatively with Body Mass Index. Four domains correlated negatively with EDS. Three domains and total score correlated significantly with the lowest oxygen saturation. Two domains correlated negatively with the longest time of apnea. AHI and the lowest oxygen saturation have a mild side effect on the quality of life. BMI and EDS score have significantly side effect on the quality of the life. CONCLUSION Comparing to the mild OSAHS patients and snorers without OSAHS,the severe OSAHS patients have worse quality of life. EDS score and BMI have a significantly side effect on the severe OSAHS patients. OSAHS has a side effect on the quality of life of the patients.

Objective To explore the nurses' awareness status of palliative care in hospital for infectious diseases and to analyze influencing factors, so as to provide basis for promoting hospital palliative care. Methods By convenience sampling method, in December 2016, 150 nurses in a hospital for infectious diseases in Nanjing were surveyed by the palliative care quiz for nursing (PCQN), with influencing factors of palliative care analyzed. Results Average score of palliative care knowledge the 150 nurses got was (8.19±2.85), with an accurate rate 43.98%, which was in a low level. Differences in scores of nursing staff with different educational backgrounds, professional titles or from different departments were statistically significant (P<0.05). The higher education level or professional title was, the higher scores nurses' palliative knowledge were; nurses in Oncology Department got higher scores in palliative care knowledge than nurses from other departments (P< 0.01). Conclusions Nurses' awareness of palliative care in hospital for infectious diseases is relatively low. Knowledge training on palliative care should be conducted through various channels, such as increasing training investment for nursing staff, enhancing on-the-job education, reinforcing weak links, promoting knowledge sharing, and many others, so that development of palliative care can be promoted.

Objective To construct nursing emergency management system of emerging infectious diseases for suiting the new situation of emerging infectious disease management needs. Methods The preliminary indicators of nursing emergency management system of emerging infectious diseases were formulated through the literature review and group discussion. The 3 rounds of Delphi questionnaire consultation were held among 20 experts in the field of infectious diseases. Results The experts' positive coefficients were 0.91,1.0 and 1.0,and authority coefficient was 0.82,while coordination coefficients were 0.272,0.311 and 0.320 (P< 0.05). Variation coefficients of various indicators were 0.09-0.22. Finally,the nursing emergency management system of emerging infectious diseases including 4 first-level indicators,17 second-level indicators and 66 third-level indicators was constructed. Conclusions The construction of scientific,systematic and standardized nursing emergency management system of emerging infectious diseases can improve the emergency disposition ability of nurses,establish efficient and reasonable human resources system,and improve the nursing management level of emerging infectious diseases.

Objective To evaluate the effect of thoracic paravertebral nerve block (TPVB) on postoperative chronic pain in patients undergoing thoracic surgery.Methods One hundred and forty patients of both sexes,aged 25-64 yr,with body mass index of 18-24 kg/m2,of American Society of Anesthesiologists physical status Ⅰ or Ⅱ,scheduled for elective thoracoscopic radical resection of lung cancer,were divided into 2 groups (n=70 each) using a random number table method:control group (group C) and TPVB group (group P).Two-point (T4,6) TPVB was performed on the affected side under ultrasound guidance before anesthesia induction,and 0.5％ ropivacaine 20 ml was injected into each puncture site in group P.Sufentanil 0.1 μg/kg was intravenously injected at 10 min before the end of operation in group C.Analgesic pump was connected at the end of operation in two groups,and patient-controlled intravenous analgesia was performed with sufentanil.The patients were followed up after operation.Sufentanil 0.1 μg/kgwas intravenously injected when visual analogue scale score ≥4.The total consumption of sufentanil and the number of requirements for rescue analgesia were recorded at 48 h after operation in both groups.The patients were followed up to 2 months by telephone after operation,the occurrence of postoperative chronic pain was recorded,and the effect of pain on daily life and grade of treatment measures were evaluated.Results Compared with group C,the total consumption of sufentanil and the number of requirements for rescue analgesia were significantly reduced,and the impact of postoperative chronic pain on daily life and grade of treatment measures for pain were decreased in group P (P＜0.05).There was no significant difference in the incidence of postoperative chronic pain between the two groups (P＞ 0.05).Conclusion Although TPVB cannot reduce the incidence of postoperative chronic pain,it can relieve the degree of postoperative chronic pain in patients undergoing thoracic surgery.

Objective To investigate the application of MRI T2*-mapping in the early damage of the medial meniscus posterior root(MMPR)in asymptomatic knee osteoarthritis(OA).Methods Eighty subjects were included in this study,35 were diagnosed with knee OA(OA group)and clinically confirmed MMPR injury,35 were asymptomatic OA group with gender and age matching,and 10 were normal control group.All subjects were examined by T2*-mapping.The T2*-mapping values at the bone attachment,middle part,and 1 cm bone attachment point of MMPR were measured in each group,and the consistency of T2*-mapping values between the knee OA group and the asymptomatic OA group was verified by the Kappa test.The T2*-mapping values of each measurement area were statistically compared,and the clinical diagnosis accuracy and other indicators of the T2*-mapping parameter values were statistically analyzed.Results The Kappa value of the knee OA group and the asymptomatic OA group analyzed by T2*-mapping was 0.787(P＜0.01),Kappa statistical analysis showed that there was a good consistency between the two diagnostic results.The T2*-mapping values of the knee OA group,asymptomatic OA group,and normal control group at the bone attachment,middle part,and 1 cm bone attachment point of MMPR showed that the T2*-mapping values of each measurement area in the knee OA group and asymptomatic OA group were higher than those in the normal control group(P＜0.05).The T2*-mapping values of the knee OA group were higher than those of the asymptomatic OA group,and the difference was statistically significant(P＜0.05).While the T2*-mapping values were used in the asymptomatic OA group to diagnose the early damage of MMPR,the sensitivity,specificity,accuracy,negative predictive value,and positive predictive value were 89.6％,88.9％,91.1％,87.5％,and 88.3％respectively.Conclusion T2*-mapping value may be used as a reference index to predict the progression of knee OA,and has a certain value in the early diagnosis of asymptomatic OA MMPR injury.

A 24-year female with abdominal pain and fever for 4 days was admitted. The blood culture showed Leuconostoc growth, and sputum culture showed positive Acinetobacterbaumannii. The diagnosis Leuconostoclactis bacteremia following small intestinal perforation was confirmed; surgical treatment was performed and the infection was controlled by piperacillin sodium and tazobactam combined with tegacycline. Wanfang database, CNKI, PubMed and Embase database up to September 2020 were searched with the keywords of " Leuconostoc lactis" "infection" "bacteraemia" for relevant literature. A total of 32 cases were reported in the literature, of whom 13 (39.4%) were infants, 17 (51.5%) had catheter-related bloodstream infection, and one healthy adult male had bacteremia through gastrointestinal perforation. In 20 patients treated with penicillins-based antibiotics, 18 were cured with an effective rate of 90.0%. The results suggest that Leuconostoc infection is likely to occur in the infants, but adults can still get community-acquired Leuconostoc infection. Most β-lactams are susceptible to Leuconostoc, but some exhibit resistance, so it is recommended to select antimicrobial agents based on drug susceptibility.

Objective To comprehend the status of treatment compliance, self-efficacy and social support of patients with chronic hepatitis B ( CHB ) , and to investigate the correlation among them.Methods The investigation had been carried out with treatment compliance questionnaire, health behavior self-efficacy scale, and social support rating scale among ninety two cases with CHB.Results The overall score of treatment compliance in Patients with CHB was (33.80 ±3.28), while the lowest score was medical treatment only (9.85 ±1.44);self-efficacy acquired (66.28 ±13.78), in which the high level had 24 cases(26.09%), the middle level 60 case (65.22%), and low level 8 cases(8.69%);the social support gained (41.67 ±5.32). There were positive correlations between the treatment compliance with self-efficacy and social support ( r =0.482,0.711, respectively;P <0.01 ) .Conclusions Patients with CHB have poor treatment compliance;however, high level of self-efficacy and favorable social support can improve treatment compliance.

ObjectiveBy starting with the combination of Os Draconis， Bupleuri Radix， and Ostreae Concha， the role of mineral medicine Os Draconis in the combination of the Bupleuri Radix-containing tri-herbal medicines was preliminarily explored from the perspective of supramolecular system formation. Method① The appearance and Tyndall phenomenon of single decoction of Os Draconis， Bupleuri Radix， and Ostreae Concha， as well as co-decoction of Bupleuri Radix-Os Draconis， Bupleuri Radix-Os Draconis-Ostreae Concha， and Bupleuri Radix-Ostreae Concha were observed， and the average particle size， dispersion coefficient， and Zeta potential of suspension particles in each decoction were determined. The micromorphology of supramolecular structures was observed by scanning electron microscope （SEM）. ② The pH of different compatibility systems， liquid viscosity coefficient， liquid surface tension， freeze-dried powder yield rate， and other physical properties were determined， and the interaction of different compatibility systems was detected by infrared absorption spectroscopy （FTIR） and UV-visible spectrophotometry （UV-Vis）. ③ The composition and content difference of different compatible systems were determined by high-performance liquid chromatography （HPLC） and ultra-performance liquid chromatography-quadrupole-time of flight mass spectrometry （UPLC-Q-TOF-MS）. ResultCompared with the single decoction， the co-decoction had more obvious turbidity and Tyndall phenomenon. The particles in the co-decoction suspension were smaller and more evenly distributed， and the Zeta potential was reduced， indicating a more stable system. Under SEM， Bupleuri Radix was irregularly lamellar， and Bupleuri Radix-Os Draconis and Bupleuri Radix-Os Draconis-Ostreae Concha were mainly spherical nanoparticles. Bupleuri Radix-Ostreae Concha was irregularly lamellar， with a small number of spherical nanoparticles. The pH of the single decoction of Bupleuri Radix and co-decoction increased， and the viscosity coefficient increased. The liquid surface tension decreased. The freeze-dried powder yield rate of the Bupleuri Radix-Os Draconis co-decoction was the highest， followed by Bupleuri Radix-Ostreae Concha decoction and Bupleuri Radix-Os Draconis-Ostreae Concha decoction， and the yield rate of Bupleuri Radix single decoction was the lowest. The main change of FTIR was the stretching vibration of -OH， and the co-decoction moved to the low-frequency direction obviously. UV-Vis showed that the maximum absorption occurred at 295.8 nm for all groups， and the absorption intensity was different （Bupleuri Radix-Os Draconis>Bupleuri Radix-Os Draconis-Ostreae Concha>Bupleuri Radix-Ostreae Concha>Bupleuri Radix）. The components of Bupleuri Radix were used as the indexes， and the content of methanol extract determined by HPLC was higher than that of water extract， and the components of Bupleuri Radix single decoction were mainly saikosaponin a （SSa） and saikosaponin c （SSc）， which were slightly higher after co-decoction compatibility. UPLC-Q-TOF-MS could identify 37 compounds in both single decoction and co-decoction. ConclusionThe combination of Bupleuri Radix， Os Draconis， and Ostreae Concha can form a smaller， more uniform， and stable nano-sized supramolecular system， which is conducive to the dissolution of the main components of Bupleuri Radix， and the Os Draconis contributes the most in this process.