• Journal of Digital Contents Society
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• v.5 no.1
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• pp.73-78
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• 2004

In this paper we implemented a field-sequential stereoscopic endoscope system that can generate stereoscopic images with different perspective depth using LCD shutter. The stereoscopic image is generated form stereoscopic adapter that has LCD shutter. We have compared the stereoscopic depth of a field-sequential stereoscopic endoscope system with that of the conventional endoscope system. And the implemented system is verified by evaluation the field-sequential stereoscopic image on a Monitor. This system will be use to medical instruments in time.

• Journal of Gastric Cancer
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• v.8 no.2
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• pp.79-84
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• 2008

Purpose: With advancements in laparoscopic surgery, there have been efforts to expand the indication for laparoscopic surgery up to advanced gastric cancer. However, scant data are available regarding the feasibility and advantages of laparoscopy-assisted distal gastrectomy (LADG) with standard radical D2 lymph node dissection. Materials and Methods: Twenty-two patients who were preoperatively diagnosed with cT1N0M0 gastric cancer underwent LADG with standard D2 lymphadenectomy between February and August 2007. They were compared with patients who underwent conventional open D2 lymphadenectomy with respect to clinicopathologic features, surgical outcomes, and postoperative course. Results: The mean operative time was significantly longer in the LADG group than in the open group ($160{\pm}25min$ vs. $135{\pm}21min$, P<0.001). However, surgical outcomes, such as surgical margin and number of retrieved lymph nodes ($25.7{\pm}11.1$ vs. $26.9{\pm}9.2$, P=ns) were comparable between the groups. The LADG group exhibited quicker postoperative recovery, and both groups exhibited similar postoperative morbidity and mortality. Conclusion: LADG with D2 lymphadenectomy is feasible and safe, with short-term surgical outcomes comparable to those seen in open D2 lymphadenectomy. Further prospective clinical investigation will be needed to better evaluate the advantages of LADG with D2 lymphadenectomy.

• 대한위암학회:학술대회논문집
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• 2003.11a
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• pp.55-55
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• 2003

• Journal of Veterinary Clinics
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• v.32 no.6
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• pp.514-518
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• 2015

A 1-year-old, 2.35 kg spayed female American short hair cat was referred with episodic signs of heat at 3 months after ovariohysterectomy. Through the screening tests, bilateral cystic, ovary like masses were shown at the caudal to both kidneys with high serum estradiol concentration. It was considered that the patient was suffered from ovarian remnant syndrome. Laparoscopic exploration was performed, and each of mass lesions was resected by ultrasonic scalpel. Patient was recovered favorably and has been doing well without recurrence of estrus signs until 2 years after surgery.

• Journal of Veterinary Clinics
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• v.31 no.2
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• pp.149-151
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• 2014

A 170 kg, 9-year-old, female Asian black bear was presented for sterilization. Physical examination revealed no evidence of any abnormal clinical sign. Laparoscopic salpingectomy was performed for sterilization. A $25^{\circ}$ laparoscope was inserted in the first port, 1-cm caudal to the umbilical scar, to view the abdominal cavity. Two more ports were made 15 cm caudo-lateral to the first port bilaterally. An atraumatic grasper and a vessel-sealing device were inserted in the bilateral ports. The vessel-sealing device was used to seal and cut the fallopian tube and mesosalpinx. There was no sign of hemorrhage on the severed ends of the fallopian tube and mesosalpinx. At 4 weeks, no physical, behavioral, or other assessable impairment was found. This is the first case report in an Asian black bear to describe laparoscopic salpingectomy for sterilization.

• Journal of Gastric Cancer
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• v.6 no.4
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• pp.207-213
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• 2006

Purpose: This study was performed to evaluate the usefulness of computed tomography (CT) gastrography in the surgical management of a gastric gastrointestinal stromal tumor (GIST). Materials and Methods: We retrospectively analyzed the clinicopathologic data of 38 patients who had undergone CT gastrography from among patients who had gastric GISTS surgically resected at the Department of Surgery, Seoul National University Hospital, between January 2001 and February 2006. We compared CT gastrography data, including tumor size and location and distance from the gastroesophageal junction or pylorus with endoscopic, surgical and pathologic findings. Results: The longitudinal tumor locations on CT gastrography and endoscopy were identical to the surgical findings. For tumor sizes on CT gastrography of less than 5 cm, we performed 11 (42.3%) laparoscopic wedge resections from among 26 cases. In the 12 cases with tumor sizes of 5 cm or over, only 1 (8.3%) laparoscopic wedge resection was performed. When the tumor was located in the middle third of the stomach, a laparoscopic wedge resection was performed in 88.9% (8/9) of the cases, but when it was located in the upper or lower third, a laparoscopic wedge resection was performed in only 13.8% (4/29) of the cases. Conclusion: Three-dimensional information from CT gastrography allows the surgeon to perform preoperative planning, including accurate localization.

• The Journal of the Korea Contents Association
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• v.16 no.9
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• pp.649-657
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• 2016

This study is aim to investigate how applying a critical pathway(CP) to stomach cancer patients affects their recovery and treatment. The subjects were 165 patients over the age of 20 who were diagnosed with stomach cancer at the gastrointestinal clinic of C hospital and who underwent laparoscopic subtotal gastrectomy. The case group inclueded 102 patients who underwent laparoscopic subtotal gastrectomy with applying the CP from October 2008 to September 2009. The control group included 63 patients who underwent laparoscopic subtotal gastrectomy without applying the CP from September 2007 to September 2008. Pain at the time of discharge was significantly lower in the CP applicated group than in the non-applicated group (Odds ratio [OR], 0.07; 95% Confidence interval [CI], 0.03-0.21). The CP applied group was significantly lower than non-applied group in total hospitalization days (CP applied group: 8.95[1.33], non-applied group: 10.69[4.04], p<0.001) and in postoperative hospitalization days (CP applied group: 7.16[0.94], non-applied group: 8.79[3.90], p<0.001). In conclusion, application of a critical pathway to laparoscopic subtotal gastrectomy reduced pain at the time of discharge, total hospitalization days and postoperative hospitalization days.

• Journal of Chest Surgery
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• v.38 no.3 s.248
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• pp.258-262
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• 2005

An 18-year old woman had dysphagia and frequent vomiting after meals for 6 years. She lost 15 kg in 6 months recently. After esophageal manometry, she was diagnosed with achalasia. We decided to use laparoscopic surgery because there was no symptomatic improvement after medication. We made small 5 incisions on her abdomen. We performed Heller myotomy and Dor fundoplication. We performed esophagogram one day after the operation. There was no leakage of the contrast media, and it passed well. She started to eat at the 2nd day after the operation and was discharged on the 9th day without other specific problem.

• Journal of Chest Surgery
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• v.39 no.9 s.266
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• pp.733-738
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• 2006

The prevalence of gastroesophageal reflux disease has been increased recently in Korea. The use of minimally invasive laparoscopic and thoracoscopic surgery has become popular in the operation of esophageal disease such as esophageal cancer or gastroesophageal reflux disorder. We experienced three cases of laparoscopic Nissen fun-doplications and one case of laparoscopic Collis gastroplasty, and we will describe the technical aspect of these surgeries.

• Journal of Veterinary Clinics
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• v.29 no.5
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• pp.408-411
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• 2012

Laparoscopic-assisted ovariohysterectomy was performed in a cat (2.7 kg) with pyometra. A 10-mm operative laparoscope was inserted into the abdomen through an umbilical port. A transabdominal suspension suture was placed to maintain the exposure of the ovarian vascular pedicle. The ovarian vascular pedicle and suspensory ligament were progressively cauterized and transected with 5-mm multifunction bipolar grasping forceps. Both ovaries and the uterus were exteriorized via 5-mm caudal port enlarged to 2 cm. The uterine body and associated arteries were ligated, transfixed, and transected under direct vision. No peri- or post-operative complications were encountered. To the authors' knowledge, this is the first report of the use of laparoscopy for the treatment of pyometra in the cat.