To introducethe high frequency electro-surgical unit safety operation, reduce the pain of the patients, to maximize the effect of high frequency electro-surgical unit.

Fast track surgery(Frs) is an idea and theory which has been highlighted by more and more clinic doctors and scholars, and widely used in the surgical operations recently. ~TS has greatly changed the mode of clinic therapy, ameliorated the velocity of the rehabilitation and prognosis after operation, and improved the quali- ty of life and the therapeutic effect. We reviewed the application of FTS in the surgery in this article.

Objective:Some medical liquid needs to be heated to the human body temperature, so the constant temperature case is a necessary equipment. But the common constant temperature case is often bulky, inconvenient application and the price is very high, so this paper is mainly to develop a convenient and cheap thermostat device for medical liquid heating.Methods:The system used single-chip microcomputer for temperature control. The temperature sensor collected and displayed the temperature of the box when the temperature was set up. Then the heating module started when the temperature was lower than the set point, and stopped heating when reaching to the set point.Results: The temperature control effect of constant temperature case tested by calibrated mercury thermometer, the temperature of constant temperature case was not significantly different from that of mercury thermometer.Conclusion: The portable constant temperature case for medical liquid have the characteristics of precise temperature control, high temperature resolution, and small temperature fluctuations. It can meet the clinical needs and be worth to popularizing in clinical applications.

BACKGROUND:Studies addressing coronary heart disease are largely dependent on the establishment of myocardial infarction animal models. It is very important that exploring a safe method with easy operation, less damage, long time survival and high survival rate for myocardial infarction animal model OBJECTIVE:To compare the pros and cons of two kinds of thoracotomy anterior descending coronary artery ligation to do myocardial infarction animal model. METHODS: Thirty healthy male New Zealand white rabbits were randomly divided into three groups: control, median sternotomy incision, and left sternal incision. The anterior descending coronary artery was ligated after thoracotomy. The operation time, amount of intraoperative bleeding, postoperative food intake, and recovery time of eating were monitored during the surgery and within 24 hours after the surgery. And myocardial enzyme indexes were also monitored within 24 hours after the surgery. Rabbits were detected with ultrasonic echocardiogram at 4 weeks. RESULTS AND CONCLUSION:Different levels of ST segment elevation appeared in median sternotomy and left sternal incision groups by echocardiogram. The success rate of modeling was 70% in median sternotomy incision group, and 80% in left sternal incision group. Within 24 hours post-surgery, the myocardial enzyme indexes in the two groups were significantly increased compared with before surgery (P < 0.05). At 4 weeks, the left ventricular ejection fraction and the left ventricular shortening fraction were significantly decreased when compared to before surgery (P< 0.05). The operation time was shorter, the amount of bleeding was less, the time of eating recovery was less and the amount of eating was much in median sternotomy group than in left sternal incision, with significant differences between he two groups (P < 0.05). The median sternotomy incision for the ligation of anterior descending coronary artery is better than the left sternal incision to establish myocardial infarction models.

ObjectiveReport an operation of off-pump occlusion of trans-thoracic minimal invasive surgery (OPOTTMIS) adopted on the therapy of 92 patients suffered with simple congenital heart diseases (CHD) of atrial septal defect ( ASD),ventricular septal defect ( VSD ) and patent ductus arteriosus (PDA) and summarize the experiences.Methods The clinical data of 92 CHD patients administrated with OPOTTMIS in our hospital during the time of July 2008 and July 2011 were analyzed retrospectively.Moreover,the relevant literatures were reviewed and the different kinds of treatments and their outcomes of CHD were compared.These patients were 3-56 years old and weighed 8.0-54.5 kg,with male and female 38 and 54 cases,including ASD 52 cases,VSD 26 cases and PDA 14 cases,respectively.Within the initial 3 months of postoperation,all the patients were followed up and managed to take the re-examination with electrocardiogram and echocardiogram one time for each month,and 3 months later,at least one time for every 3-6 months.Results91 cases were performed the OPTTMIS procedure successfully,1 child with sieve-like ASD transferred to open-heart surgery and 1 adult( 1.1％ ) PDA died on the second day after operation for the pulmonary hypertension crisis.4 cases appeared mild residual shunt including 2 of ASD,1 of VSD and 1 of PDA.2 cases showed Ⅱ stage atrial ventricular block ( AVB ) within ASD and VSD,respectively.Also,post-operation hemothorax happened to 1 case ASD and 1 case VSD for the active bleeding of cardiac puncture site and the exploration and hemostatic operation were performed.91 (98.9％) patients were performed the OPOTTMIS operation successfully,the total complications within 72 hours was 6.5％ (6/92),respectively.There were no heavy complications happened during peri-operation such as cardiac rupture,infective endocarditis,stroke,hemolytic and thrombus formation.90 patients outcomes of 3 months to 4 years follow-up with the ECG and UCG examination showed that there were no Ⅲ stage atrioventricular block,no obvious occluder shift and broken and no moderate cardiac valve regurgitation,no evident blood flow restriction of left ventricular outflow tract and descending aorta,only found mild residual shunt within 2 cases ( VSD and PDA each) and heart expansion compared to pre-operation within 2 PDA patients.However,all the patients'heart functions were in grade Ⅰ to grade Ⅱ according to NYHA standard.ConclusionOPOTTMIS is a safe,feasible and effective option on simple congenital heart diseases.

Objective:To compare the clinical effect of anterior mediastinal tumor resection with video assisted thoracoscopic surgery(VATS) through approach of trans-subsagittal incision and trans-intercostal incision.Methods:The clinical data of 118 patients including 67 males and 51 females with anterior mediastinal tumors using VATS resection from January 2013 to October 2020 in Tongren Hospital, Shanghai Jiao Tong University School of Medicine were analyzed retrospectively. According to different incisional approach, these patients were divided into two groups of trans-subsagittal incision group including 45 cases with 25 males and 20 females, and trans-intercostal incision group including 73 cases with 42 males and 31 females. The sternal incision group was treated with the sub xiphoid incision plus the subcostal arch incision and the sternal retractor traction sternum, and the intercostal incision group was treated with the traditional intercostal space incision. Subsagittal incision combined subcostal arch incision and sternum traction with sternal retractor was used in the approach of trans-subsagittal incision group, and the traditional thoracotomy was used in the intercostal incision group. The clinical data of operation time, volume of intraoperative blood loss, rate of transfer to open thoracotomy, duration of postoperative chest tube drainage, visual analogy score(VAS)assessed on the 1st and 3rd days after surgery, hospitalization time, average cost of hospitalization, and incidence of postoperative complications, were compared between the two groups.Results:The operative time, volume of intraoperative blood loss, the number of cases of transfer to open thoracotomy, duration of postoperative chest tube drainage, VAS score of the first and third days after operation, length of hospitalization, average hospitalization cost and the incidence of postoperative complications were lower than those in the transcostal incision group( P<0.05). Conclusion:Compared to the group of trans-intercostal incision VATS resection of anterior mediastinal tumor, the trans-subsagittal incision group has many advantages as follows, shorter operation time, less intraoperative blood loss, no transfer to open thoracotomy, much simpler and safer operative procedure, less body trauma, lighter postoperative pain, less postoperation complications, shorter hospitalization time, less average hospitalization cost, and rapid rehabilitation after surgery.

Microribonucleic acid (miRNAs) is a widely existing endogenous single-stranded non-coding small RNA, which is stably expressed in tissues and body fluids. By complementing messenger RNA(mRNA) sequences, miRNAs degrade target mRNA and block the expression of protein-coding genes, playing a key role in post-transcriptional regulation and different biological processes. In recent years, more and more studies have shown that miRNAs are closely related to the occurrence and development of tumors. Among them, as a member of the miRNAs family, microribonucleic acid-196 (miR-196) is abnormally expressed in the serum, tissues and cells of patients with non-small cell lung cancer, participating in the occurrence and development of non-small cell lung cancer and playing an important regulatory role in various biological processes such as proliferation, invasion and metastasis, providing diagnostic evidence for early screening of non-small cell lung cancer.This paper reviews the progress of miR-196 in the development and diagnosis of non-small cell lung cancer.