1.Study on the effect of collaborative care on job burnout and turnover intention among township hospital phy-sicians
Chinese Journal of Hospital Administration 2015;(5):368-372
Objective To learn the burnout and turnover intention of physicians from township hospitals in Xi County,Henan province,for reference of health administrators and healthcare institution managers.Methods Cluster sampling method and qualitative interviews were used and all physicians from such hospitals were sampled for questionnaire survey in 2014,with 1 70 scales distributed.The questionnaire was the Markov Burnout Inventory generic version revised by Li Chaoping,and turnover intention questionnaire was that revised by Liang Kaiguang.Results 140 physicians from such hospitals were found with zero or low burnout (94.6%);Collaborative care in the county poses great positive effect on promoting professionalism and interpersonal relations, yet has limited positive impact on reducing workload and performance appraisal stress and increasing their income.Conclusion It is imperative to enhance training of managers of such hospitals for them to learn the appraisal method with organizational scale,and build a humanistic concern mechanism for physicians,for purposes of improving the organizational environment and minimize the burnout and turnover intention of the physicians.
3.Evaluation and development of preoperative liver reserve function evaluation methods
Minglong LIANG ; Jiuquan ZHANG ; Jian WANG
Chinese Journal of Digestive Surgery 2014;13(4):317-320
Liver resection is one of the important treatments of liver diseases,especially hepatocellular carcinoma.In China,the vast majority of liver cancer patients suffer from generalized damage of the liver parenchyma such as cirrhosis,lead to liver reserve function reducing in various degrees.Liver dysfunction or even liver failure after liver resection becomes an important reason of perioperative death and influences the patients' long-term survival.Therefore,accurate preoperative evaluation of liver reserve function is very important.Though there are seveal kinds of assessment of liver reserve function in recent years,it still lack of a clinically recognized,comprehensive assessment method.This paper reviewed the clinical commonly used preoperative liver reserve function evaluation methods,summarizes and analyzes the value and the insufficiency of several important methods,and prospects the development of evaluation methods about preoperative liver reserve function.
4.The function of HGF/SF in the proliferation of colorectal cancer cells
Hongwu LI ; Qu ZHANG ; Jian LIANG
Chinese Journal of General Surgery 1993;0(02):-
Objective To study the function of hepatocyte growth factor/scatter factor(HGF/SF) in the (proliferation) of colorectal cancer cells.Methods The expression of c-met,the receptor of HGF,was(detected) in Caco-2 and Colo320 cell lines by Western blot.The activation of p42/p44MAPK and p38MAPK induced by HGF in these two cell lines was observed.Observation of the effect of the inhibitor of p42/p44MAPK(PD98059),p38MAPK(SB203580) on the inhibition of HGF-induced proliferation of Caco-2 and Colo320 cells were made by Using -TdR,MTT assay.Results(1)Both cell lines(expressed) the c-met.(2)HGF activated p42/p44MAPK and p38MAPK,and 20ng/ml HGF treated cells showed maximum activity in both to be within 10min.(p42/p44MAPK,2.28?0.01;p38MAPK,2.25?0.01).(3)HGF was found to significantly increase thymidine incorporation(P
5.Influence of aging on the expressions of Bcl-2 and Bax protein in rat hearts after acute myocardial infarction
Yanhong LIANG ; Guobin MIAO ; Jian ZHANG
Chinese Journal of Geriatrics 2008;27(6):453-457
Objective To compare the influence of aging on apoptosis and the expression of apoptosis-related protein in adult and aged male Wistar rat hearts after acute coronary artery occlusion. Methods The acute myocardial infarction rat model was established by left anterior descending(LAD)occlusion.A total of 115 adult and aged rats,aged 6-24 months,were included in the study.The rats were divided into 4 groups:aged model group,aged control group,adult model group and adult control group.Animals were killed 1,3,5 hours,1 and 7 days after coronary occlusion.Hemodynamic parameters[heart rate(HR),left ventricular systolic pressure(LUSP),left ventricular end-diastolic pressure(LVEDP),±dp/dtmax)]were obtained from each group at every time points.The apoptosis and necrosis of myocardium were detected with TUNEL way and TTC stain.The expressions of Bcl-2 and Bax were analyzed with immumohistochemical stain. Results DNA fragmentation occured 1 hour after coronary occlusion and apparently peaked earlier in the aged than in the adult rat hearts.At 3 hour,the apoptotic index of aged model group was obviousily higher than that in adult model group[(51.90±23.15)%us.(18.67±17.15)%,P<0.01].The basal levels of Bcl-2 and Bax were higher in the aged than in the adult rat hearts.The expression of Bcl-2 in aged model group and adult model group were 2.7±0.9 and 1.8±0.8,P<0.05.The expression of Bax in aged model group and adult model group were 6.2±2.9 and 4.2±1.5,P<0.05. Conclusions The ability of aged rats to resist ischemia is poor,aging may alter the expressions of Bcl-2 and/or Bax,increase cardiomyocyte apoptosis,thereby,enhance the myocardial dysfunction during acute myocardial infarction.
6.Role of Video-assisted Thoracic Surgery in management of Penetrating Thoracoabdominal Injuries
Jian ZHANG ; Liang YU ; Hao CHANG
Chinese Journal of Minimally Invasive Surgery 2005;0(07):-
Objective To evaluate the value of video-assisted thoracic surgery(VATS)for penetrating thoracoabdominal injuries.Methods Under general anaesthesia and double-lumen tracheal intubation,VATS was carried out to examine patients with chest injuries.Those who had mild injuries received VATS combined with mini-incision surgery.Electrocoagulation or suturing was employed to control intraoperative bleeding,and then blood clots were removed.Injured diaphragm muscles were repaired,and organs with hemorrhage or ruptures were sutured or resected.The seriously injured cases underwent open surgery and intra-abdominal exploration instead.Results A total of 18 patients received the operations.Among them,15 patients underwent VATS combined with mini-incision surgery(repair of the diaphragm was performed on 15,controlling intercostal arterial bleeding on 8,repair of the lung on 2,wedge resection of the lung on 2,and coagulated hemothorax removal on 2),the other 3 were converted to open surgery for repairing the diaphragm(3),heart(1),or esophagus(1),or lobectomy(2).Abdominal surgery via the thorax were performed on 13 cases,including repair of the liver in 1,lienectomy in 1,gastrorrhaphy in 1,repair of diaphragmatic hernia in 3,and intra-abdominal exploration in 7.Five patients received open surgery(pancreatic neoplasty in 1,repair of the liver in 1,lienectomy in 1,gastrorrhaphy in 2,and repair of the caul and mesenterium in 3).One patient who had multi-organ penetrating injuries died of hemorrhagic shock,circulatory failure,and DIC after open thoracic and abdominal surgeries.The mean operation time in this series was(125?44)minutes(ranged from 45 to 220),and the mean blood loss was(1089?582)ml(500 to 10 000 ml).Twenty-four hours after the operation,the mean volume of chest drainage was(234?75)ml(100 to 350 ml)in the first 24 hours after the operation.The chest drainage tube was withdrawn 2.5(2 to 5)days postoperation.The patients expelled gas in 1 to 4 days(mean,2 days).Totally,12 patients were followed up for 3 to 12 months(mean,6 months),during which none of them had trauma-related complications.Conclusion VATS combined with mini-incision surgery is safe and effective for patients with thoracoabdominal injuries,if the cases were carefully selected.
7.Comparison of Thoracoscopy-assisted Mini-incision and Traditional Open Surgery for Lung Cancer
Jian ZHANG ; Liang YU ; Ju WANG
Chinese Journal of Minimally Invasive Surgery 2001;0(01):-
Objective To evaluate the outcomes of thoracoscopy-assisted mini-incision procedure in patients with lung cancer.Methods From January 2003 to June 2003,66 patients with non-small cell lung cancer were treated in our hospital by lobectomy combined with mediastinal lymph node resection using thoracoscopy-assisted mini-incision(36 patients,VATS Group)or traditional surgery(30 patients,traditional group).The clinical and follow-up data of the two groups were compared after the operation.Results No significant difference was found in the operation time between the VATS and traditional groups(114.6?47.4)min vs(123.3?43.9)min,t=-0.768,P=0.449],while the postoperative hospital stay of the VATS group was significantly shorter than that in the traditional group (9.2?1.4)d vs(10.5?1.7)d,t=-3.408,P=0.001].Log-rank test showed that the survival curve in the two groups was comparable(?2=0.270,P=0.605).Cox regression model indicated that the pathological characteristics(risk ratio:3.912,P=0.000),TNM stage(risk ratio:3.737,P=0.000),and lymph node metastasis(risk ratio:15.495,P=0.000)were independent,unfavorable prognostic factors for the disease;whereas,no relation was detected between the thoracotomy incision and prognosis(P=0.414).Conclusions Thoracoscopy-assisted mini-incision procedure is a safe and reliable approach for patients with lung cancer with satisfying outcomes.
8.Application of video-assisted thoracoscopic surgery for thoracic traumas
Liang YU ; Jian ZHANG ; Xuefeng WANG
Chinese Journal of Minimally Invasive Surgery 2005;0(12):-
Objective To research the feasibility and superiority of video-assisted thoracoscopic surgery(VATS) in the diagnosis and treatment of thoracic traumas.Methods Video-assisted thoracoscopic surgery was used in 40 patients with thoracic traumas,including thoracic exploration,repair of pulmonary laceration,and evacuation of clotted hemothorax.[WTHZ]Results All the 40 patients were cured,including simple VATS in 31 patients,thoracoscopy-assisted mini-incision surgery in 8 patients,and conversion to open surgery in 1 patient.The time of operation was 79.9?33.1 min.The amount of blood clots and noncondensing blood cleared was 567.5?177.8 ml.The closed thoracic drainage tube was removed at 24~48 h postoperatively,with a drainage volume of 220?45.6 ml.The length of hospital stay was 4~13 d(mean,8.7 d).The sutured wound healed by first intention in all the patients.No postoperative complications were observed.Follow-up reviews in 35 patients for 6~12 months(mean,8.6?2.6 months) revealed uneventful recovery and no trauma-related complications.Conclusions As compared with conventional open surgery,VATS has shown advantages of exact diagnosis,timely management,little invasion,and quick recovery for patients with thoracic traumas.
9.Thoracoscopy-assisted mini-incision pulmonary lobectomy
Liang YU ; Jian ZHANG ; Daqiang SUN
Chinese Journal of Minimally Invasive Surgery 2005;0(08):-
Objective To compare clinical effects of mini-incision pulmonary lobectomy with or without thoracoscopic assistance. Methods A total of 64 patients, in order of precedence of the operation, were divided into two groups according to a random numbers table. The Group A was given thoracoscopy-assisted mini-incision pulmonary lobectomy while the Group B underwent simple mini-incision lobectomy. Results The length of incision was significantly shorter in the Group A (5.3?0.6 cm) than in the Group B (8.9?0.5 cm) (t=-24.360,P=0.000); the intraoperative blood loss in the Group A (279.7?74.0 ml) was significantly less than that in the Group B (331.7?42.5 ml) (t=-3.330,P=0.002); the drainage volume at the first postoperative day was remarkably less in the Group A (162.5?47.4 ml) than in the Group B (202.0?49.2 ml) (t=-3.220,P=0.002). Complications were noted in 5 patients in the Group A and 11 patients in the Group B (?~2=4.099,P=0.043). The Group A presented a significantly shorter postoperative hospital stay (8.0?2.2 d) than the Group B (9.7?1.9 d) (t=-3.280,P=0.002). There was no statistically significant difference in the operating time between the two groups (t=-1.130,P=0.262). A follow-up observation was carried out in 57 patients for 6~12 months. Local recurrence was observed in 1 patient with stage Ⅲa lung squamous carcinoma at 6 months after operation in the Group A, whereas in the Group B, distant metastasis with local recurrence was found in 2 patients with stage Ⅲa small-cell lung carcinoma and in 1 patient with lung adenocarcinoma at 7~8 months after surgery. All the 4 patients died within 1 year. Three patients ended with other diseases unassociated with the surgery. No local recurrence or distant metastasis was found in the remaining 50 patients. Conclusions As compared with simple mini-incision pulmonary lobectomy, thoracoscopy-assisted mini-incision procedure provides less surgical invasion, fewer complications, and quicker postoperative recovery.
10.Influence of Bacillus Calmette-Guerin Intervention on Stem Cell Factor and Macrophage Colony-Stimulating Factor in Bronchoaveolar Lavage Fluid of Asthmatic Mouse
xiao-liang, LIN ; jian-hua, ZHANG
Journal of Applied Clinical Pediatrics 1994;0(04):-
Objective To observe the expressions of stem cell factor(SCF) and macrophage colony-stimulating factor(M-CSF) in bronchoaveolar lavage fluid(BALF) of asthmatic mouse,and the effect of bacillus calmette-guerin(BCG) intervention on them.Methods Thirty Kunming rats were randomly divided into asthmatic group,BCG intervention group and control group,each group had 10 rats.Mice were sensitized and challenged with ovalbumin (OVA) to establish asthmatic model.Asthmatic mice were injected intradermally with BCG on 7,3,1 d before sensitization.After 24 h of last challenge,BALF were collected.The total cells and eosinophils(EOS) were counted in the BALF.The SCF and M-CSF levels of BALF were determined by enzyme-linked immunosorbent assay(ELISA).Results The number of total cells and EOS [(27.06?4.25)?107 L-1,(7.58?1.30)?107 L-1]in BALF in asthmatic mice were more than those in control group[(4.93?1.43)?107 L-1,0](Pa0.05).The M-CSF level also increased noticeably in asthmatic mice[(204.30?10.39) ng/L] compared with the control group[(181.33?8.63) ng/L](P