Video assisted surgery has been applied to many fields of thoracic surgery including esophagectomy. At first radical video assisted esophagectomy (RVAE) for malignant esophageal tumors faced intense criticism, but almost all recent reports confirm its feasibility, safety. This article reviews the recent research of RVAE.

[Objective]To evaluate the therapeutic effects of minimally invasive replacement in complicated femoral intertrochanteric fractures.[Method]A retrospective analysis was done for 49 patients with femoral intertrochanteric fractures in the author's department from March 2005 to August 2008.According to different ways of replacement,the patients were divided into Group A(n=21),open repositioning and Group B(n=28),minimally invasive replacement respectively.And PFN or Gamma nail was fixed after that.Operation time,bleeding volume,length of stay,time of weight loading and average time of fracture union,incidence rate of complications and hip function were recorded.[Result]There great significant differences in operation time,bleeding volume and average time of fracture union between Group B and Group A respectively(P0.05).Hip score(Harris) in Group B was significantly higher than that in group A(P

OBJECTIVE:To establish the HPLC fingerprint for Blumea balsamifera and its fake B. riparia. METHODS:HPLC was performed on the column of Uitimate-C18 with mobile phase of acetonitrile-0.05% phosphoric acid(gradient elution)at a flow rate of 0.6 mL/min,detection wavelength was 270 nm,column temperature was 25 ℃,and injection volume was 7 μL. Using quercetin as a reference,Similarity Evaluation Software for Chromatographic Fingerprint of Traditional Chinese Medicine(2004 A edition)was used for the common peaks identification and similarity analysis of 16 batches of B. balsamifera and 5 batches of B. ri-paria. RESULTS:There were 61 common peaks in the 16 batches of B. balsamifera,similarity degree was 0.931-0.995,which was higher than the similarity degree of 5 batches of B. riparia. CONCLUSIONS:The established fingerprint can provide reference for the identification and quality evaluation of B. balsamifera.

Objective To investigate the factors associated with contralateral recurrence of primary spontaneous pneumothorax And prosvide referencee for how to prevent primary spontaneous Pneumothrorax with Contralateral recurrence.Methods From January 2006 to December 2011,the clinical follow-up data of 203 patients with primary spontaneous pneumothorax were reviewed.The median follow-up time was 43 months.Results Two hundred and three patients developed 241 recurrences,among which 27 patients had contralateral recurrences.The average time of contralateral recurrence was 20.19 months.Patients with contralateral recurrence of primary spontaneous pneumothorax had smaller age(P ＜ 0.05),lower body weight (P ＜ 0.05) and lower body mass index (P ＜0.01).All patients with contralateral recurrence of primary spontaneous pneumothorax received surgical treatment and were found bullae during surgery.Three patients had unilateral recurrences of pneumothorax during follow up,with single-stage bilateral video-assisted thoracoscopic surgery for bilateral primary spontaneous pneumothorax.Conclusions Contralateral recurrence of primary spontaneous pneumothorax is more common in patients with small age,low body weight and low body mass index.These patients could perform high-resolution computerized tomographic scan of the lung before surgery.Single-stage bilateral video-assisted thoracoscopic surgery may be considered for these patients with contralateral bullae on high-resolution computerized tomographic scan of the lung to prevent contralateral recurrence of primary spontaneous pneumuothorax.

Objective    To analyze the effect of 3D simulation technique in thoracoscopic lobectomy. Methods    From June 2015 to January 2018, 124 patients with left lower lobe resection underwent thoracoscopy with single-port thoracoscopic surgery, including 64 males and 60 females, aged 42–83 years. They were randomly divided into two groups including an experimental group (preoperatively given 3D simulation surgery in 59 patients) and a control group (preoperatively not given 3D simulation surgery in 65 patients). The clinical effect between the two groups was compared. Results    All patients recovered without any death during hospitalization. In the experimental group, the operation time, intraoperative blood loss and postoperative hospital stay were significantly less than those in the control group (P<0.05). There was no significant difference in postoperative drainage volume, and duration of drainage tube retention and analgesic drug usage between the two groups (P>0.05). Conclusion    3D simulation technique for thoracoscopic lobectomy has advantage in short operation time, minor trauma and quick recovery. It has a guiding role in the preoperative planning of lung cancer surgery and is worthy of popularization and application.