Surgical technique for single-port laparoscopy in huge ovarian tumors: SW Kim`s technique and comparison to laparotomy

( Jeong Sook Kim ),( In Ok Lee ),( Kyung Jin Eoh ),( Young Shin Chung ),( Inha Lee ),( Jung-yun Lee ),( Eun Ji Nam ),( Sunghoon Kim ),( Young Tae Kim ),( Sang Wun Kim ) 대한산부인과학회 2017 Obstetrics & Gynecology Science Vol.60 No.2

Objective This study aimed to introduce a method to remove huge ovarian tumors (≥15 cm) intact with single-port laparoscopic surgery (SPLS) using SW Kim`s technique and to compare the surgical outcomes with those of laparotomy. Methods Medical records were retrospectively reviewed for patients who underwent either SPLS (n=21) with SW Kim`s technique using a specially designed 30×30-cm2-sized 3XL LapBag or laparotomy (n=22) for a huge ovarian tumor from December 2008 to May 2016. Perioperative surgical outcomes were compared. Results In 19/21 (90.5%) patients, SPLS was successfully performed without any tumor spillage or conversion to multi-port laparoscopy or laparotomy. There was no significant difference in patient characteristics, including tumor diameter and total operation time, between both groups. The postoperative hospital stay was significantly shorter for the SPLS group than for the laparotomy group (median, 2 [1 to 5] vs. 4 [3 to 17] days; P<0.001). The number of postoperative general diet build-up days was also significantly shorter for the SPLS group (median, 1 [1 to 4] vs. 3 [2 to 16] days; P<0.001). Immediate post-operative pain score was lower in the SPLS group (median, 2.0 [0 to 8] vs. 4.0 [0 to 8]; P=0.045). Patient-controlled anesthesia was used less in the SPLS group (61.9% vs. 100%). Conclusion SPLS was successful in removing most large ovarian tumors without rupture and showed quicker recovery and less immediate post-operative pain in comparison to laparotomy. SPLS using SW Kim`s technique could be a feasible solution to removing huge ovarian tumors.

Misorientation Characteristics at the Growth Front of Abnormally-Growing Goss Grains in Fe–3%Si Steel

Tae‑Young Kim,Tae‑Wook Na,Hyung‑Seok Shim,Yong‑Keun Ahn,Yong‑Kwon Jeong,Heung Nam Han,Nong‑Moon Hwang 대한금속·재료학회 2021 METALS AND MATERIALS International Vol.27 No.12

Penetrating morphologies at the growth front of abnormally-growing Goss grains in Fe–3%Si steel was examined in view ofthe possibility that they are the two-dimensional section of the solid-state wetting (SSW) along the triple junction line. Toobtain the statistically meaningful data, 102 penetrated grain and 204 penetrating abnormally-growing Goss grain morphologieswere examined. The misorientation angles of penetrating and penetrated grains were measured by electron backscattereddiffraction. Among the 102 examined penetrated grain boundaries, none has low misorientation angles less than 15°,whereas 17.2% of the 204 penetrating grain boundaries have low misorientation angles, and 23.5% of them have coincidencesite lattice boundaries. Besides, boundary energies of penetrating Goss grains, which were estimated from misorientationangles of the three grains in the penetrating morphology, satisfied the energetic condition for SSW along the triple junctionline. These results imply that the abnormal grain growth of Goss grains in Fe–3%Si steel occurs by the mechanism of subboundaryenhanced SSW.

Assessment of serum biomarker for acute kidney injury

Jeong Hyun Jo,Ki Hoon Kim,Tae Min Kim 한국수정란이식학회 2018 한국수정란이식학회 학술대회 Vol.2018 No.11

Acute kidney injury (AKI) is a disorder that is manifested by a sudden decrease of renal function within several hours, and AKI remains a significant cause that can lead to increasing morbidity and mortality. Although AKI has been extensively studies in animal models, translating the results from animal studies into clinical use has not been successful due to various factors including basal etiology of kidney deficiency and comorbidities and the complexity of this pathology. As a golden parameter, measuring serum creatinine (SCr) and blood urea nitrogen (BUN) has been conventionally used for determining the renal function, however, these biomarkers has been regarded suboptimal to identify renal injuries in early stages. In this study, we attempted to screen other serum biomarkers in early AKI event using cynomolgus monkeys. Two male monkeys, aged 60 months, were subjected to ischemic injury by unilateral clamping of renal pedicles for forty five minutes and then subsequently reperfused; the unclamped kidney was regarded as non-injured controls. Compared with control kidneys, we have found that the concentration of several inflammatory proteins including MCP1, TGFα, GSTα, were higher in the renal vein of injured kidney compared with control side after 24 and 48 hours of AKI. However, changes of serum level of KIM-1, which is one of the most-widely studied marker in rodent studies, were not different after AKI. Our results provide an useful information while developing a novel marker in AKI.

다중음성치료기법(SK-MVTT)이 성대결절 환자의 음성개선에 미치는 효과 : 액센트 기법과의 비교 연구 Comparison with Accent Method

김성태,정옥란 한국음성과학회 2004 음성과학 Vol.11 No.4

Vocal nodule is one of the representative chronic diseases of vocal folds, and it can be cured by voice therapy. However, the existing therapeutic methods about vocal nodule are in great demand. The purpose of this study was to evaluate the effect of therapeutic methods between Accent method and SK-MVTT (Seong-Tae Kim's multiple voice therapy technique), which was designed by the author. We identified 40 females, who diagnosed having vocal nodules, aged from 21 to 52 years (mean age: 40 years). Twenty females were treated by the SK-MVTT and the other 20 females the Accent method. All subjects received 12 sessions of treatment, and were evaluated after finishing the 6th and the 12th session. The results showed that the SK-MVTT produced a better results compared to the Accent method. The SK-MVTT was better especially at the initial stage of voice therapy compared to the Accent method. In this study, we can suggest that SK-MVTT may be useful in improving the voice qualities of vocal nodule patients. However, more data should be collected and evaluated before it can widely be used in other clinics.

ZnO:In 가스 감지막의 특성 및 응용

김영범,박종아,김진해,김권태,김정규,마대영,박기철 경상대학교 생산기술연구소 2001 工學硏究院論文集 Vol.1 No.-

The microsensors to detect NH3 gas were fabricated by continous deposition of In film by evaporation and ZnO film by rf magnetron sputtering onto the Si3N4 diaphragm that was prepared by MEMS technology. The sensors were heat-treated to dope In into the ZnO thin film. The electrical characteristics of sensitive films were studied as a function of heat-temperature by 4-point probing method and electrometer. The dependence of the sensitivity, selectivity and time response of sensor on heat-treatment temperature was investigated. The microsensor heat-treated at 400℃ that 3000 A ZnO:In film was chosen as gas sensitive film, showed the highest sensitivity 23% at 350ppm NH3 under 366mW heater power. The time response was 90sec. The sensitivity for CO and NOx was not observed.

알코올성 치매의 신경심리학적 소견

김태유,김지원,김상윤,김준모,이동기,연권인,김민정,이은아,손정은 대한노인병학회 2004 대한노인병학회지 Vol.8 No.1

저합금 주강품의 열처리 해석

김정태,김정인,곽시영,최정길 한국주조공학회 2003 한국주조공학회지 Vol.23 No.6

감마선 조사 랫트의 고환에서 fibronectin의 발현

정진우,김희철,김정태,안미정,이지영,신태균 제주대학교 방사능이용연구소 2005 방사선응용과학연구소논문집 Vol.19 No.-

액체소듐속에서 소듐-물반응에 의한 재질의 Wastage현상

정경채,정지영,김병호,김태준,최병해,최종현,김의식 한국공업화학회 2003 응용화학 Vol.7 No.1

In this study we observed and analyzed the corrosion phenomena in leak site and the effect on temperature at the target surface of heat transfer tube material by sodium-water reaction through water leakage in liquid sodium atmosphere. Surrounding of leak hole of the specimen was damaged by the wastage phenomena due to corrosion and erosion of material, and hole size by damage of leak site was extended from 150㎛ to about 200㎛. Also, the damaged size appeared in the target surface was observed to about 1000㎛ diameter. The temperature of target surface increased about 70~80℃ by the heat of sodium-water reaction even with the small leakage of 15㎖ water. From the results of EPMA and EDX analysis, damaged area are found to covered with complex compounds such as (NaOH+Na_2O) FexOy or (NaCrO_2+nA_2CrO4) mixed up with the sodium oxides by sodium-water reaction and the Fe or Cr element by matrix of tube sodium oxides by matrix of tube material.

위절제술 환자의 표준진료지침 개발 및 적용 효과

김은희,김철규,이순교,김순덕,이혜옥,권정순,이경미,이민미,심순미,유용만,신종식,강은희,이상일,김병식,오성태,육정환,박수길 한국의료QA학회 2003 한국의료질향상학회지 Vol.10 No.2

Background : Gastric cancer is the most common malignant tumor in Korea. surgical operation is one of the major treatment modalities for gastric cancer patients. Therefore, gastrectomy is one of the most common procedures in General Surgery. There were variation in length of hospital stay and medical treatment for gastrectomy between three surgeons at Asan Medical Center. Clinical pathways have received considerable attention as a tool for recucing the medical practice variation, increasing the efficiency of care process, and improving the quality of care. The aim of this study was to evaluate the effect of a clinical pathway for gastrectomy in gastric cancer patients. Methods : The clinical pathway for gastrectomy was developed and implemented by a multidisciplinary group in Asan Medical Center. A computerized clinical pathway program was developed and revised after a pilot test. A total of 145 patients underwent gastrectomy by three surgeons at Asan Medical Center. We compared the length of hospital stay, patient satisfaction, and unplanned readmission rate between the pre-pathway group(n=67) and the post-pathway group(n=78). We also investigated the degree of satisfaction among the physicians and nurses who were main end-users of the clinical pathway. Results : The clinical pathway was applied to all target patients. The average length of hospital stay was shortened from 12.7days to 10.6days(p<0.01). The degree of patient satisfaction with the care process changed from 90.3% to 89.2% after the implementation of the clinical pathway, but the difference was of satistically significant(p=0.761). Unplanned readmission rate was 2.9% in the pre-pathway group. More than 90% of physicians and nurses answered that the clinical pathway had been a useful tool in their medical practice. Conclusions : The findings of the study demonstrated that implementation of the clinical pathway for gastrectomy produced substantial reduction in the length of hospital stay while improving the quality of patient outcomes. The computerized clinical pathway program can be used as one of the powerful patient management tools for reducing the practice variations and increasing the efficiency of care process in Korea hospital settings.