• Journal of Chest Surgery
• /
• v.56 no.4
• /
• pp.264-271
• /
• 2023

Background: The optimal management strategy for aortoiliac occlusive disease (AIOD) remains debatable. This study compared early and late outcomes between direct surgical bypass and kissing stents for AIOD treatment. Methods: We retrospectively reviewed data, including age, sex, risk factors, comorbidities, symptoms, TransAtlantic Inter-Society Consensus (TASC) II classification, operation time, perioperative complications, in-hospital mortality, and length of hospital stay, from a cohort of 46 patients treated for AIOD (24 with kissing stents and 22 with direct surgical bypass) at Pusan National University Hostpital from January 2007 to December 2016. The primary, assisted primary, and secondary patency rates in both groups were compared. Results: The hospital stay (direct surgical bypass vs. kissing stents: 16.36±5.19 days vs. 9.08±10.88 days, p=0.007) and operation time (direct surgical bypass vs. kissing stents: 316.09±141.78 minutes vs. 99.54±37.95 minutes, p<0.001) were significantly shorter for kissing stents. Kaplan-Meier analysis revealed that the primary, assisted primary, and secondary patency rates in the direct surgical bypass group were 95.5%, 95.5%, and 95.5%, respectively, at 1 year; 86.4%, 86.4%, and 95.5% at 3 years; and 77.3%, 77.3%, and 95.5% at 5 years. The primary, assisted primary, and secondary patency rates in the kissing stent group were 100.0%, 100.0%, and 100.0%, respectively, at 1 year; 95.8%, 95.8%, and 100.0% at 3 years; and 95.8%, 95.8%, and 100.0% at 5 years. Conclusion: Except for special cases wherein endovascular revascularization is difficult, kissing stents are more advantageous for TASC II C and D lesions.

• Proceedings of the KIEE Conference
• /
• 2007.04c
• /
• pp.156-158
• /
• 2007

Laser wave length can have evaporation effect by absorption because outer skin or tissue of focus is consisted of water almost though absorption of water occurs more than 90% almost in formation thickness of very thin floor Can operate outer skin, steam by floor and correct incision of formation is available. Suture surgical operation is avaliable to vein or lymph system and surgical operation region can dry and see as eye and radish bleeding surgical operation is avaliable Specially, stability of tube both end output about pulse by weight very, this research can cause various curative effect because can reduce bulk and control easily current wave style of medical laser using electric power conversion device of high frequency way. If introduce ZVS (Zero Voltage Switching) or ZVZCS (Zero Voltage and Zero Current Switching), is more profitable because can reduce switching damage Because electric power department of proposed medical laser can do stable soft-switching in wide subordinate extent introducing ZVZCS technique by the first help and control department composes microcontroller, output current waveform user have free form make. Result that experiment because design and manufacture, brought result that improve of 20% than existing equipment, and will be bought to get into superior result if supplement as systematic late.

• Proceedings of the KIEE Conference
• /
• 2007.04a
• /
• pp.52-54
• /
• 2007

Laser wave length can have evaporation effect by absorption because outer skin or tissue of focus is consisted of water almost though absorption of water occurs more than 90% almost in formation thickness of very thin floor. Can operate outer skin, steam by floor and correct incision of formation is available. Suture surgical operation is available to vein or lymph system and surgical operation region can dry and see as eye and radish bleeding surgical operation is available. Specially, stability of tube both end output about pulse by weight very, this research can cause various curative effect because can reduce bulk and control easily current wave style of medical laser using electric power conversion device of high frequency way. If introduce ZVS (Zero Voltage Switching) or ZVZCS (Zero Voltage and Zero Current Switching), is more profitable because can reduce switching damage. Because electric power department of proposed medical laser can do stable soft-switching in wide subordinate extent introducing ZVZCS technique by the first help and control department composes microcontroller, output current waveform user have free form make. Result that experiment because design and manufacture, brought result that improve of 20% than existing equipment, and will be bought to get into superior result if supplement as systematic late.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
• /
• v.14 no.1
• /
• pp.10-15
• /
• 2003

Background and Objectives : Ankyloglossia, commonly known as tongue-tie, is the result of a short, fibrous lingual frenulum or highly attached geioglossus muscle. This condition may cause sucking and swallowing problems, articulation disorders, interference with the tongue's cleansing action, increased the potential for caries, and inability to lick the lips, play a wind instrument, and 'french kiss' Treatment is surgical procedure. In the most cases, horizontal sectioning and mucosal suture(the conventional procedure) is preferred, but in some cases, the Z-plastic procedure is effective. This study is aimed to compare the result of the two procedures. Materials and Methods : Twenty tongue-tie patients underwent operation. Ten patients were treated with the Z-plastic procedure and ten patients were treated with the conventional method randomly. We checked preoperative mobile tongue length, postoperative mobile tongue length, operation time and postoperative wound states. Results : Among the 20 cases of tongue-tie, 2 cases are excepted due to pre-operative state, thus we compared 18 cases of tongue-tie patients. There is no statistically significant difference between the two procedures except in operation time. The Z-plastic procedure apparently needs a little more operating time. Conclusion : Patients treated with the Z-plastic procedures appeared to have better outcomes, but the data shows no statistical significance except in operating time. Consequently, the Z-plastic procedure is indicated in a limited amount of cases.

• Journal of Gastric Cancer
• /
• v.11 no.4
• /
• pp.206-211
• /
• 2011

Purpose: Laparoscopic total gastrectomy (LTG) for gastric cancer is still uncommon because of technical difficulties, especially in esophagojejunostomy (EJ). There are many reports for various laparoscopic procedures of EJ using linear or circular staplers. On the other hands, there has been no report for hand-sewn anastomosis. We report successfully performed intracorporeally hand-sewn EJ after LTG. Materials and Methods: The clinicopathologic data and short-term surgical outcomes of 6 patients who underwent totally laparoscopic total gastrectomy for upper gastric cancer from December 2010 and July 2011 were retrospectively reviewed. Results: The mean age was 66.5 years and mean body mass index (kg/$m^2$) was 24.6. All patients had medical comorbidities. The mean patient ASA score was 2.17. Among the 6 patients, previous abdominal operation was performed for 2 patients and combined operation was performed for 3 patients. The mean blood loss, operation time, and EJ anastomosis time was 130 ml, 379.7 minutes, and 81.5 minutes, respectively. The mean time to first flatus, first oral intake, and postoperative hospital stay was 3.0, 3.0, and 12.5 days, respectively. There was no 30-day mortality case. Postoperative aspiration pneumonia and multiple periventricular lacunar infarctions developed in 1 patient. There were no anastomosis-related complications and other major surgical complications. Conclusions: When the intracorporeal anastomotic technique becomes popular in LTG the intracorporeally hand-sewn EJ may be accepted as one method among the various laparoscopic procedures of EJ.

• Annals of Hepato-Biliary-Pancreatic Surgery
• /
• v.27 no.3
• /
• pp.227-240
• /
• 2023

Hilar cholangiocarcinomas are highly aggressive malignancies. They are usually at an advanced stage at initial presentation. Surgical resection with negative margins is the standard of management. It provides the only chance of cure. Liver transplantation has increased the number of 'curative' procedures for cases previously considered to be unresectable. Meticulous and thorough preoperative planning is required to prevent fatal post-operative complications. Extended resection procedures, including hepatic trisectionectomy for Bismuth type IV tumors, hepatopancreaticoduodenectomy for tumors with extensive longitudinal spread, and combined vascular resection with reconstruction for tumors involving hepatic vascular structures, are challenging procedures with surgical indications expanded. Liver transplantation after the standardization of a neoadjuvant protocol described by the Mayo Clinic has increased the number of patients who can undergo operation.

• Journal of Chest Surgery
• /
• v.22 no.5
• /
• pp.806-810
• /
• 1989

There has been arguing in the proper surgical treatment of myasthenia gravis. But the ultimate goal of operation is complete removal of thymic tissues. In view of previous surgical-anatomic studies that there are frequently thymic tissues from the level of thyroid gland to the diaphragm and from hilum to hilum, en bloc resection of thymus, mediastinal fat including both sheets of pleura and pericardium is reasonable. We experienced four myasthenic patients with radical thymectomy from 1989. As compared to the result of previous simple thymectomy group, the 23 patients who were operated from 1976 to 1988[Group I ], excellent surgical outcome was obtained in radical thymectomy group[Group II ].

• Journal of the Korean Society of Environmental Restoration Technology
• /
• v.7 no.6
• /
• pp.29-38
• /
• 2004

This study validated the effect of Vaseline and the vegetable hormone-added medicine that can influence the formation of new calluses on the injured part, with the subjects of natural monument trees and large old trees. The medicines can help in the treatment of the pored or injured parts and promote the formation of new callus on natural monument trees and large old trees, which can help vigorous growth activities and prevent any secondary infection by pathogens at the same time. It turned out that the Vaseline that is used for the protection of cambiums after surgical operations on the trees did not have any significant effect on the formation of calluses. However, since it was found that new calluses formed rapidly when applying the medicine using a vegetable hormone, the medicine is highly recommended for use. If further studies should determine proper medicines for the trees according to the kinds of trees and if the medicine is applied in proper concentrations to the injured part for rapid formation of calluses on the trees when the trees undergo surgical operations, it then should be helpful in preventing the sound part(s) of the trees from decay caused by secondary infection and treatment of the injured part.

• Quality Improvement in Health Care
• /
• v.8 no.1
• /
• pp.84-94
• /
• 2001

Background : in order to adapt to changes of the medical environm interests that is drawn in ambulatory surgery are increased as a method of approaching a patients' satisfaction and cost-effective management. The purpose of this study is to a assess the operation which is able to perform through ambulatory care unit, to identify the problem in ambulatory surgery, and to increased the opportunity of ambulatory surgery with safety. Methods : Between May 13th, 1998 and June 30th, 2000, we performed surgical treatment through ambulatory care unit, and evaluate the results of them. The sorts of operation, duration of stay in the hospital, total cost of treatment, satisfaction of patients and safety if anesthesia were assessed. Results : We performed ambulatory surgery without serve complications and the patients were satisfied with surgical treatment through ambulatory care unit. In comparison of ambulatory and admission surgery, there was a reduction of cost to 16.7~25.3% in ambulatory surgery. Also, the duration of admission was 2 days shorter than admission surgery. Conclusions : According to our results, the surgical treatment through ambulatory care unit is safe and useful method that increase the quality of medical service, satisfaction of patients and reduce the cost of treatments.

• Journal of Yeungnam Medical Science
• /
• v.7 no.1
• /
• pp.133-144
• /
• 1990

This study was performed to guide the effective utilization of blood and optimal blood ordering schedule for various elective surgeries, based on the analysis of 1.462 transfused surgical procedures and 5.933 blood units transfused during operation in the period of two years through January, 1987 to December, 1988 at Yeungnam University Hospital. The frequency of transfusion, and mean transfused units were evaluated and recommended blood unit for each surgical procedure was proposed. We assure that the successful establishment of this guideline can lead to substantial monetary saving, reduced blood outdation, and a decreased blood bank workload with a more appropriate allocation of the technician's time and effort.