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정상안압녹내장에서 초기 시야결손의 발생위치와 관련된 임상인자 분석
강병완,지영석,박상우,Byung Wan Kang,Yong Sok Ji,Sang Woo Park 대한안과학회 2011 대한안과학회지 Vol.52 No.12
Purpose: To investigate the risk factors related to the location of visual field defects in normal tension glaucoma. Methods: Eighty-one eyes diagnosed as normal tension glaucoma in patients with early glaucomatous visual field defects were divided into central visual field defects and peripheral visual field defects. The difference between the 2 groups based on the intra-individual comparison were assessed with several ocular risk factors such as sex, age, hypertension, diabetes mellitus, smoking, laterality, intraocular pressure, central corneal thickness, cup-disc ratio, peripapillary atrophy, mean deviation, pattern standard deviation, best corrected visual acuity, and refractive errors. Results: The incidence of hypertension in the central visual field defects group (60.6%) was higher than in the peripheral visual field defects group (22.9%, p = 0.001). The central corneal thickness in the central group (533.1 ± 18.2 μm) was thinner than in the peripheral group (545.0 ± 30.0 μm, p = 0.003). Hypertension was the only risk factors for central visual field defects (p = 0.001). In both the central group and peripheral group, upper visual field defects were more common than lower defects. Conclusions: Hypertension in patients with normal tension glaucoma was a factor involved in central visual field defects. Additionally, numerous visual field defects were mainly found the superior portion. J Korean Ophthalmol Soc 2011;52(12):1478-1484
내사시에서 양안 내직근후전술 시 기능적적도부 및 팍스의 수술양을 고려한 군 간 수술성적비교
강병완,박상우,윤경철,허환,Byung Wan Kang,MD,Sang Woo Park,MD,PhD,Kyung Chul Yoon,MD,PhD,Hwan Heo,MD,PhD 대한안과학회 2012 대한안과학회지 Vol.53 No.1
Purpose: To compare the surgical outcomes of functional equator-considering and Parks’ methods in infantile esotropia and partially accommodative esotropia. Methods: The medical records of 96 patients with infantile esotropia and partially accommodative esotropia who underwent bilateral medial rectus muscle recession by functional equator-considering and Parks’ methods were reviewed retrospectively. The surgery success rate at 1 month, 3 months, 6 months and 12 months was compared by the deviation angle measurement. Results: Overall success rates were not statistically different between the 2 groups. Additionally, there were no differences in surgical success rate of functional equator-considering and Parks’ methods in infantile esotropia and partially accommodative esotropia. When the patients were divided into 2 groups based on 40 PD, no significant difference in success rate between the 2 groups was observed. When patients were divided into 2 groups based on 22 mm of axial length, there was no statistical difference observed. Postoperative overcorrection was 2 (4%) in the functional equator group and 3 (6.5%) in Parks’ method group and postoperative undercorrection was 9 (18%, 19.6%) in each group. The incidence of undercorrection in the Parks’ method group was significantly higher in the greater than 22 mm axial length group (7, 35.0%) than in the less than 22 mm group (2, 7.7%) (p = 0.029). Conclusions: There was no statistically significant difference in surgical success rate between the functional equator and Parks’ methods in infantile esotropia and partially accommodative esotropia. J Korean Ophthalmol Soc 2012;53(1):138-144
S-199 Entrapment of a large air bubble at aortic root after intra-aortic balloon pump insertion
김하나,김학령,강병완,서재빈,정우영,김상현,김명아 대한내과학회 2016 대한내과학회 추계학술대회 Vol.2016 No.1
Introduction:?Bleeding, thromboembolism, infection are well-known complications related to IABP and ECMO support. However, air embolization is very rare related to IABP insertion. There has been lack of data on air embolism related to IABP without balloon rupture. Thus, we report a case of large air embolism during IABP insertion with ECMO support for AMI with cardiogenic shock.?Case:?A 59-year-old man visited our hospital with severe anterior chest pain, which developed 30 minute ago. His initial systolic blood pressure was 62mmHg and heart rate was 51 per minute. His ECG showed markedly ST elevation on II, III, aVF and complete AV block. CK-MB was elevated up to 1,330ng/ml and troponin I was 500ng/ml. He was suspected as AMI with cardiogenic shock. In catheterization room, his ECG changed to pulseless VF. In spite of several times of electrical defibrillation, VF persisted. CPR was started, and veno-arterial ECMO was applied through right femoral artery and vein. During the CPR on ECMO support, emergent CAG was performed. CAG showed thrombotic total occlusion of mid-portion of RCA and stent thrombosis at left main stent prohibiting distal flow to LAD and LCX territories. RCA, LAD and LCX were revascularized by DES and balloon angioplasty, then IABP was inserted via left femoral vein. Immediately after IABP insertion, large oscillating air bubble was found in aortic root. The air bubble was trapped in aortic root and did not move to aortic arch or LV. The air bubble was aspirated using 7-F Judkin catheter successfully.
최성묵(SeongMuk Choi),강병완(ByoungWan Kang),정동현(DongHyeon Jung),김광용(GwangYong Gim) 한국IT서비스학회 2016 한국IT서비스학회 학술대회 논문집 Vol.2016 No.추계
현재의 인터넷 환경은 전세계가 그물망처럼 정교하게 연결되어 있으며, 상호간의 신뢰를 기반으로 많은 양의 중요 정보를 교환하고 있다. 인터넷환경의 발달로 인해 민간기업과 공공기관에서 크고 작은 해킹사고가 발생하는데 그 공격의 대부분은 악성코드의 감염으로 시작한다. 악성코드 감염으로 시작된 공격은 악의적인 목적을 달성하기 위한 지능적 지속위협(APT)공격 유형으로 금융정보탈취, 중요기밀유출, 전산망 마비 등에 피해를 발생시키고 있다. 악성코드 수의 증가와 피해가 늘어남에 따라 수년간 다양한 악성코드 탐지 연구가 활발히 진행되고 있으며, 본 논문에서는 기존의 시그너쳐 기반의 유해트래픽 탐지 방법 과 악성파일의 정적, 동적 분석을 다차원적 병행 분석의 방법을 제안한다.
유현(Hyun Yoo),강병완(Byung Wan Kang),김태국(Tae Guk Kim),정준헌(Jun Hun Jung),김혜숙(Hye Sook Kim) 대한외과학회 2007 Annals of Surgical Treatment and Research(ASRT) Vol.72 No.2
Undifferentiated (embryonal) sarcoma of the liver is a rare and highly malignant hepatic neoplasm of a mesenchymal origin. This tumor almost exclusively affects pediatric patients, and the prognosis is poor. Although there has been controversy as to the most appropriate treatment, the previous studies have reported that long term survival is possible after complete surgical resection with or without perioperative chemotherapy. We report here on a case of undifferentiated (embryonal) sarcoma of the liver, which showed cystic formation, in a 37-year-old woman with no prior history of any hepatitis or liver cirrhosis. She was admitted with right abdominal pain. The physical examination findings were unremarkable except for tenderness in the right abdomen.
정민호(Min Ho Jeong),강병완(Byeong Wan Kang),손창목(Chang Mok Son),김혜숙(Hye Sook Kim) 대한외과학회 2007 Annals of Surgical Treatment and Research(ASRT) Vol.73 No.2
Neuroendocrine tumor (NET) of the colon and rectum has been reported to have a low incidence and aggressive progression; it is frequently misdiagnosed and its treatment is not well documented. Four NET cases were collected at our hospital during the previous year of a colon cancer survey. Endoscopic mucosal biopsy of the colon was done for each case and all the cases proved to be adenocarcinomas. Curative surgery was conducted after the preoperative diagnostic and staging evaluation was completed. The locations of the primary lesions of the patients were all different; cecum, ascending colon, splenic flexure colon and sigmoid colon. The disease was advanced in all cases and the first postoperative diagnosis was poorly differentiated adenocarcinoma. Immunohistochemical tests followed and all the cases were positive for chromogranin A staining. A retrospective study was then conducted.