Objective To explore the method for establishing a pig left lung orthotopic transplantation model. Methods A total of 4 male Yorkshire pigs weighing (40.0±2.5) kg underwent surgical procedures, including anesthesia, tracheal intubation, donor lung procurement, and recipient lung transplantation. Histological morphology and blood gas analysis of the transplanted lungs were assessed 2 hours after reperfusion to evaluate the histological changes and function of the transplanted lungs. Results The pigs underwent left lung in situ transplantation, effectively simulating conditions relevant to human lung transplantation. Two hours after the transplantation, arterial blood gas analysis showed that arterial partial pressure of oxygen was 155.4-178.6 mm Hg, arterial partial pressure of carbon dioxide was 53.1-62.4 mm Hg, and the oxygenation index was 310.8-357.2 mm Hg. Hematoxylin and eosin staining indicated a low degree of pulmonary edema and minimal cellular infiltration. Conclusion The pig left lung orthotopic transplantation model possesses strong operability and stability. Researchers can replicate this model according to the described methods and further conduct basic research and explore clinical translational applications.

Objective     To investigate the safety and feasibility of day surgery for patients with palmar hyperhidrosis based on the principles of enhanced recovery after surgery (ERAS). Methods     We retrospectively reviewed the medical records of consecutive patients who underwent endoscopic thoracic sympathicotomy (ETS) in the First Affiliated Hospital of Xi'an Jiaotong University from March 2020 to December 2021. Patients were divided into a day surgery group and a conventional group according to their perioperative management methods. The patients in the day surgery group underwent an optimized perioperative procedure under the guidance of ERAS, and were ventilated with a laryngeal or face mask during the operation. The patients in the conventional group completed the preoperative examination, operation and postoperative observation according to the conventional procedures, and were intubated with a single-lumen endotracheal tube. The demographic characteristics, operation time, hospital stay, postoperative complications, and hospitalization cost were compared between the two groups. Results     Finally 172 patients were collected, including 90 males and 82 females, with an average age of 25.97±7.43 years. There were 86 patients in each group. All patients ceased suffering from palmar sweating after surgery. No patient experienced massive bleeding or conversion to thoracotomy. There was no statistical difference in operation time between the two groups (P=0.534). Patients in the day surgery group were discharged within 24 hours. The average hospital stay in the conventional group was 2.09±0.41 days. Incidence of postoperative respiratory complications, and the hospitalization cost of the day surgery group were significantly lower than those of the conventional group (P<0.001). The satisfaction rate in both groups was greater than 95%. Conclusion     Day surgery for patients with palmar hyperhidrosis based on the principles of ERAS is safe and feasible, which can reduce postoperative complications, shorten the length of hospital stay and save the cost of hospitalization.

Objective:The extensive development of anatomical pulnonary segmentectomy requires thoracic surgeons to be familiar with the anatomical variations of the lung segment. The purpose of this study is to analyze the anatomical patterns of the right upper lobe lung segment using three-dimensional reconstruction, and to count rare variant types.Methods:From October 2017 to March 2020, 101 patients with small pulmonary nodules who were undergo segmental resection in our center were subjected to preoperative three-dimensional reconstruction of the lung structure, and the reconstruction data was retained for the statistics and analysis of the anatomical structure in the right upper lung lobe.Results:The right upper lobe bronchus is the most common with three branches(77/101), followed by two branches(16/101) and four branches(7/101). The two branches(70/101) of the right upper lobe pulmonary artery are the most common, followed by single branch(19/101) and three branches(11/101). In rare cases, four branches(1/101 cases) can be seen. The two branches(63/101) of the right upper pulmonary vein were the most common, followed by three branches(32/101) and single branch(6/101). In addition, a total of 12 rare mutations were counted. There were 2 variants in the bronchus, totaling 2 cases; 4 rare variants in the pulmonary artery, 13 cases total; 6 rare variants in the pulmonary vein, 10 cases total.Conclusion:The lung anatomy is complex and has many variations. The surgeon should fully grasp the anatomical structure of the lung segment of the patient's operating area before surgery, the data in this article will be a valuable reference for thoracic surgeons to carry out the upper right lobe segmentectomy.

Objective: To evaluate the application of panning axial turnover in placement of surgical positions before thoracic surgery. Methods: From June 2017 to September 2017, altogether 140 patients who underwent thoracic surgery were enrolled in and randomly divided into two groups: the observation group and the control group. The control group was treated with traditional turnover method, while the observation group were treated with axial turnover. Results: No significant changes were found in blood pressure, heart rate and respiratory rate (P>0.05) after turning over. There was no significant difference between the observation group and the control group about turn over time, (7.06±0.78)s vs. (7.01±0.81)s (P>0.05). The subjective evaluation results of the medical staff in the observation group were significantly better than those of the control group (Z=-7.111, P<0.01) and the shift rate of double-lumen endotracheal tube in the observation group was 3.7% (2/54), which was significantly lower than 21.6% (11/51) of the control group (χ²=6.158, P<0.05). Conclusions The panning axial turnover properly guided the turn-over work with the principle of human body mechanics, which was more labor-saving and requires less operators. Besides, the panning axial turnover effectively reduced the double-lumen tracheal intubation shift rate. It′s worthy of clinical promotion.

Objective To observe the value of MRI in evaluation on the morphology and function of iliococcygeal muscles in fertile and nulliparous women.Methods Totally 50 healthy fertile women (fertile group,further divided into cesarean section subgroup and spontaneous delivery subgroup according to the mode of delivery) and 17 nulliparous healthy women (nulliparous group) underwent MR scanning in both natural and increased abdominal pressure state.Iliococcygeus thickness (ICT),coronal iliococcygeal angle (cICA) and sagittal iliococcygeal angle (sICA) of different states were measured and compared between the groups.Results In the natural state,the right and bilateral average sICA in the fertile group were larger than those in nulliparous group (both P＜0.05),while no statistical difference of ICT,right,left and bilateral average cICA and left sICA were found between two groups (all P＞0.05);the bilateral average sICA in spontaneous delivery subgroup was larger than that in cesarean section subgroup (P＜0.05).In increased abdominal pressure state,left,right sICA and bilateral average sICA in fertile group were larger than those in nulliparous group (all P＜0.05),while there was no statistical difference of ICT and cICA between two groups (all P＞0.05);no statistical difference of ICT,cICA nor sICA was found between spontaneous delivery subgroup and cesarean section subgroup (all P＞0.05).Conclusion MRI can accurately evaluate morphological and functional changes of iliococcygeal muscle in females.

Objective To explore the application of the standard of Chinese lymph node dissection in minimally invasive esophagectomy.Methods Methods Between April 2014 to September 2015,63 patients with esophageal carcinoma received minimally invasive esophagectomy by the same group of surgeons.Wedescribed in detail the methods of thoracic esophagus mobilization and lymph node dissection in the peri-esophageal space.We analyzed the surgical effect,postoperative complications and follow-up results.Resnits The average operation time was(280.48 ± 44.28) mins,the median intraoperative blood loss was 100 ml,the mean number of lymph nodes was 22.25-± 11.18;the incidence of postoperative pulmonary infection in 28.57％,hoarseness was 17.46％,anastomotic leakage was 12.70％,postoperative 1 year survival rate was 84.1％,3 year survival rate of 61.1％.Conclusion Mobilization of thoracic esophagus based on peri-esophageal space and dissection lymph nodes guided by the Chinese standard of grouping lymph node would achieve good clinical effects.

Objective:To observe the effects of different moxibustion times on proteins of transient receptor potential vanilloid 3 (TRPV3) ion channel protein and synovial cell apoptosis in rats with rheumatoid arthritis (RA), to provide a new basis for the anti-inflammatory mechanism of moxibustion. Methods:A total of 50 Sprague-Dawley (SD) rats were divided into a normal group, a model group, moxibustion groupⅠ, moxibustion groupⅡ and moxibustion groupⅢ by complete randomization, with 10 rats in each group. Rats in the normal group were bred routinely, and rats in the model group were also bred routinely after successful modeling. After successful modeling, rats in moxibustion groupⅠ,Ⅱ andⅢ accepted consecutive moxibustion at Zusanli (ST 36) and Shenshu (BL 23) for 15 d, once a day, respectively 5 min, 20 min and 30 min for each session. The degree of paw edema was observed and recorded. Immunohistochemical assay was used to detect the protein expression of TRPV3 ion channel in dorsal root ganglia and spinal cord dorsal horn. Terminal-deoxynucleoitidyl transferase-mediated nick end labeling (TUNEL) was used to detect apoptotic synovial cell number. Results: At the end of treatment, paw circumference of rats in moxibustion groupⅡ andⅢ were significantly reduced as compared with that in the model group (P<0.05). TRPV3 ion channel protein expression of dorsal root ganglia and spinal cord dorsal horn was higher in the model group than that in the normal group (P<0.05); the TRPV3 ion channel protein expressions of dorsal root ganglia and spinal cord dorsal horn in moxibustion groupⅡ andⅢ were higher than that in moxibustion groupⅠ (P<0.05); apoptotic synovial cell number in the model group was larger than that in the normal group (P<0.05), and apoptotic synovial cell numbers in moxibustion groupⅡ andⅢ were significantly higher than that in the model group (P<0.05). Conclusion:Moxibustion of appropriate time could induce TRPV3 expression, and promote synovial cell apoptosis.

Background and objective Lung cancer is the type of cancer with the highest incidence and mortality in numerous countries and regions. Establishing an appropriate animal model that can be used to simulate lung cancer etiology, pathogenesis, and similar processes, is urgent. We explore the feasibility of establishing a lung cancer model induced by Xuan-wei bituminous coal dust PM10 (particulate matter with diameters of 10 μm or less), which affects bronchial epithelium of tree shrews.Methods hTe neck skin of adult tree shrews is dissected, and the thyroid cartilage is fully exposed. Subsequently, the weak part at the top of the thyroid cartilage is treated with intratracheal agents by perfusion via a special infusion needle punc-ture method. Regular X-ray examination and lung tissue biopsy were performed on the sacriifced animals to observe changes in pulmonary imaging and bronchial epithelial cells atfer perfusion of Xuanwei bituminous coal dust PM 10.ResultshTe tree shrews of the experimental group (exposed to bituminous coal dust) died in a week atfer perfusion with PM10, whereas no animal died until the end of the experiment in the blank control and the solvent control groups. Sections of lung tissue biopsy of the regularly killed tree shrews were stained with hematoxylin and eosin. hTe lung tissues of tree shrews in the experimental group showed a serial changes caused by bronchial epithelial hyperplasia, such as squamous metaplasia, dysplasia, and early invasive carcinoma, whereas no signiifcant pathological changes were observed in the blank control and solvent control groups. Conclusion Endotracheal infusion of Xuanwei bituminous coal dust PM10 induces lung cancer in tree shrews. hTus, the lung cancer model was established.

Objective To analyze the equity of the allocation of the health human resources in Chongqing from 1997 to 2012 , and to provide the basic information for regional health planning .Methods The statistical description ,Gini Coefficient and Theil in-dex are used to analyze the previous allocation and trends of the health human resources and the equity in Chongqing during the 16 years based on the distribution of demography and geography .Results The number of the health human resources grew rapidly from 1997 to 2012 .The Gini coefficients of health professionals and medical practitioners (and assistants) are under 0 .3 based on the distribution of demography ,while registered nurses′are fluctuation in 0 .4 .However ,from the distribution of geography ,the Gi-ni coefficient of health professionals ,medical practitioners (and assistants) and registered nurses are above 0 .5 .The Gini coefficient of the one hour economic circle is higher than two wings areas .The trends about the totle Theil index are consistent with the Gini coefficient .Based on the distribution of demography ,the Theil index between regions is higher than the one within the region .On the contrary ,the Theil index between regions is below the one within the region by the geographic distribution .Conclusion Com-pared to the national ,less total health human resources are reserved in Chongqing .Distribution by demographics about health human resources are more equitably than the one by geographic distribution .The variances between the economic circles contribute more to the total Theil index than those within the economic circles .The government′s leading role should be strengthen ,and enhancing the regional health planning .

Objective To evaluate the of the decision process to perform staged or synchronous bilateral percutaneous nephrolithotripsy (PCNL) in the treatment of bilateral upper urinary tract calculi. Methods Patients with an indication for bilateral PCNL were enrolled in the study from Jan. 2008 to Dec. 2008. The decision to perform staged or synchronous bilateral PCNL was based on the initial side operative time, the changes of hemoglobin level and systolic arterial pressure, the results of blood gas analysis and the patient′s tolerance at the end of initial side operation. The patients were divided into two groups, patients who underwent synchronous bilateral PCNL were in group one. Patients where the PCNL procedure was stopped after the initial side and subsequently underwent staged bilateral PCNL three to six weeks later were placed in group two. The success and complication rates of two groups were compared and analyzed. Results Of 60 planned simultaneous bilateral PCNLs, nine were stopped after the initial side, due to prolonged operative time in four cases, a hemoglobin level ＜100 g/L or the decrease of more than 30 g/L in three cases, a systolic arterial pressure lower than 90 mm Hg or the decrease more than 30 mm Hg in two cases, an arterial blood pH lower than 7.35 or the arterial oxygen saturation lower than 95% in two cases or the patients were intolerant to the surgery in three cases. Between the two groups, the differences of patient gender, age, BMI, preoperative hemoglobin level, the total hemoglobin decrease, the side initiated operation, stone number and second side stone burden were insignificant. However, there were significant differences in the first operative side stone burden, total stone burden, the first operative side operative time and total operative time. The stone-clearance rate was 87.3% in group one and 88.9% in group two. There was no difference in complication rate of two groups. Conclusions Prolonged operative time, large blood loss during the first operation side and patient intolerance are the main causes of staged bilateral PCNL.