Objective To compare the risk of tumor invasion and metastasis under paravertebral block (PVB) combined with general anesthesia versus general anesthesia in the patients undergoing radical resection for lung cancer performed via video-assisted thoracoscope in terms of plasma concentrations of vascular endothelial growth factor (VEGF) and matrix metalloproteinase-9 (MMP-9).Methods Forty ASA physical status Ⅰ or Ⅱ patients of both sexes,aged 30-64 yr,with body mass index of 18-25 kg/m2,scheduled for elective radical resection for lung cancer performed via video-assisted thoracoscope,were randomly divided into 2 groups (n =20 each) using a random number table:general anesthesia group (group G) and PVB combined with general anesthesia (group PG).PVB of T4-7 was performed successfully with local injection of 0.375％ ropivacaine 5 ml before induction of anesthesia.Double-lumen endotracheal tube was placed after induction of anesthesia,and the patients were mechanically ventilated.Anesthesia was maintained with inhalation of sevoflurane (end-tidal concentration 1％-2％),and intravenous infusion of remifentanil 0.2-0.3 μg · kg-1 · min-1,and intermittent intravenous boluses of atracurium.Before anesthesia and at 24 h after surgery,the venous blood samples were collected for measurement of plasma concentrations of VEGF and MMP-9.Results The plasma VEGF and MMP-9 concentrations were significantly lower after surgery in group PG than in group G.Conclusion PVB combined with general anesthesia significantly decreases the risk of tumor invasion and metastasis in the patients undergoing radical lung cancer resection performed via video-assisted thoracoscope in comparison to general anesthesia.

Objective To observe the efficacy of a kind of complex composed of biphasic ceramic biologic bone (BCBB), bone morphogenetic protein (BMP) and basic fibroblast growth factor (bFGF) on the repair of necrotic areas of the femoral head. Methods The femoral head necrosis model of 64 femoral heads in 32 rabbits induced with microwave heating were randomly divided into four groups, which implanted with nothing (group A), BCBB/BMP (group B), BCBB/BMP/bFGF (group C) and with cancellous bone autograft (group D). The specimens were harvested separately at the end of 2, 4, 8 and 12 weeks after operation. 4 femoral heads were taken off at each interval in every group. A series of examinations were carried out including of naked eyes and gross anatomic observation, X-ray, histology, and blood vessel immunohistochemical staining. Results In group A, 1 femoral head collapsed by the end of 12 weeks, and there was only a little osteoid tissue formed. At the same time, a lot of new bone formed in group B and group C, and the boundary between the bone grafting area and the post bone still existed, but the boundary was unclear in group D, with the density consistent to the post bone. Under X-ray, the defect could be found and one femoral head collapsed in group A by the end of 12 weeks. The density of bone grafting area was high and the boundary to the post bone was unclear in group B and in group C. The density of bone grafting area was the same as the post bone and the boundary between them was unclear in group D. There was only a little osteoid tissue formed in group A by the end of 4 weeks. At the same time, there was a little new bone formed in group B, and BCBB was partly degraded. There was a lot of new bone formed in group C and group D, and BCBB was partly degraded in group C, but cancellous bone autograft was almost absorbed in group D. The new bone area by the end of 4, 8 and 12 weeks from more to less were: group C and group D (P>0.05), group B, and group A (P<0.05). At the end of 2, 4 and 8 weeks, the blood vessel area of group C was more than that of group A, group B, and group D (P<0.05). Conclusion The BCBB/BMP/bFGF complex can induced osteoinduction and revascularization, to repair rabbit femoral head necrosis as effective as cancellous bone autograft.

Objective To reduce the energy consumption and cost of steam sterilizers at sterile supply centers .Methods Routine data of the steam sterilizers from January to June of 2016 were collected from one hospital in Changchun .Usage by timeframe of these sterilizers was analyzed , including their performance when they are powered on , standby (idle), and powered off and their energy expenditure at such states .Sustainable and stepwise energy saving strategy was developed , with the reduction of standby ( idle) period and energy saving amount of energy and cost .Results Usage of sterilizers was found with obvious peak and valley hours , while their standby hours during the latter were long and in a few timeframes . After implementation of the energy saving management strategy , their standby hours at various timeframes averaged ≤3 h (P<0.001).For six months, we reduced 5818 hours of standby time, 97 tons of steam, 2910 kW · h of electricity , saving cost over 30000 yuan ( 17％) .Conclusions The energy-saving management strategy could reduce the consumption of energy and cost effectively .

Objective To investigate the demand for perioperative health education in liver transplantation patients at different stages, and to discuss its influencing factors, so as to provide the empirical evidence for nurses to satisfy patients' health education demand. Methods From July 2014 to March 2016, the self-designed health education demand questionnaire for patients undergoing liver transplantation was used to investigate 71 patients who met the criteria. Single factor analysis and multiple regression analysis were used to explore the influencing factors of the health education demand. Results The score of health education demand in liver transplantation patients was (114.48±5.27), which was at a relatively high level. The item with highest demand at preoperative stage was the financial burden of the surgery, with the score of (4.52±0.81). Diet guidance was the highest at postoperative stage, and the score was (4.61±0.57). Before discharge, review follow-up guidance was the most popular item, with the score of (4.72±0.45). Multiple regression analysis demonstrated that education background and waiting time for liver were the main influencing factors of health education demand (P<0.05). Conclusions The nursing staff should realize the current situation of health education demand in liver transplantation patients and provide individualized health education for each individual patient to improve the patients' quality of life.

Objective:To explore the research hotspots and development trends in the field of domestic disinfection supply in the past 10 years.Methods:We systematically searched the article in the field of disinfection supply included in the core journal database of China National Knowledge Infrastructure (CNKI) . The search subject was "disinfection supply" and "Supply Room", and the search time limit was from January 1, 2011 to September 1, 2021. The CiteSpace software was used to conduct keyword co-occurrence, keyword clustering, time-line map and keyword emergence analysis, and explore the research hotspots and development trends in the field of disinfection supply.Results:A total of 1 126 articles were retrieved. The bibliometric analysis showed that the domestic research in the field of disinfection supply in the past 10 years mainly focused on 10 aspects. Cleaning quality, disinfection and sterilization quality control, and nosocomial infection in Central Sterile Supply Department were still current research hotspots. The prevention and control of the COVID-19 epidemic was the focus of research in 2020 and 2021.Conclusions:The overall number of publications in the field of disinfection supply tends to be stable, and the prevention and control of nosocomial infection has been the focus of researchers in the past 10 years. It is recommended that future researchers strengthen multi-center cooperation and conduct experimental research and qualitative research on practitioners in the field of disinfection supply.