Background and purpose: With the development of the three-dimensional (3D) science

minimally invasive technology is going into the 3D period. While 3D laparoscope system has been widely accepted by surgeons because of its better visual effect and safer operations compared to traditional laparoscope system

this study aimed to evaluate the feasibility of 3D thoracoscope system in minimally invasive surgery for the treatment of thoracic diseases. Methods: A total of 96 cases of thoracic diseases were accomplished with KARL STORZ 3D thoracoscope during Mar. 2014 to Oct. 2014

including 33 cases of lobectomy

2 cases of segmentectomy

and 10 cases of wedge resection of pulmonary tumor

27 cases of mediastinal tumor

20 cases of esophageal tumor and 4 case of esophageal achalasia. The data of operative time

bleeding volume

postoperative chest tube drainage and hospital time and postoperative complications were counted. Results: All the operations were completed successfully

without conversion to open surgery. All the operations cost 30 to 237 min. The operation of local resection lasted 30 to 120 min

with an average of 52 min

the operation of pulmonary lobectomy lasted 63 to 122 min

with an average of 75 min; the operation of mediastinal tumor resection lasted 35 to 125 min

with an average of 77 min; and the operation of esophageal diseases lasted 57 to 237 min

with an average of 189 min. The bleeding volumes were 2 to 85 mL

15 to 72 mL

30 to 186 mL and with the average of 50 mL

47 mL

118 mL in pulmonary

mediastinal and esophageal operations respectively. The time of postoperative chest tube drainage of each surgery was 1 to 5 days after pulmonary operations

1 to 3 days after mediastinal operations

and 2 to 6 days after esophageal operations. The postoperative hospital time of pulmonary operation was 2 to 10 days

with an average of 6.3 days; the time of mediastinal operation was 3 to 6 days

with an average of 4.2 days; and the time of esophageal operation was 4 to 19 days

with an average of 13.3 days. No complications and tumor recurrence or metastasis were observed during the followed 3 months. Conclusion: 3D thoracoscope system not only preserves the minimally invasive advantage of video-assisted thoracoscopic surgery (VATS)

it can also provide high-definition and stereoscopic vision and better sense of depth which facilitate the operation more precise and safer

thus operation time becomes shorter. Besides

3D system possesses the advantage of natural vision similar to open surgery

thus it has an easier and shorter learning curve.