간세포암의 고주파 열치료 후 천자침 경로를 통한 전이 1례

조영완,박석주,진한영,김준영,이재익,강명주,박정하,윤정희,박성재,지삼룡,이연재,이상혁,설상영 인제대학교 2006 仁濟醫學 Vol.27 No.-

Radiofrequency ablation(RFA), as a form of minimally invasive therapy for hepatocellular carcinoma, has become an important treatment modality. Because of limitation of surgery, RFA has become standard therapy for hepatocellular carcinoma in some situations. But there are some complications of RFA such as bleeding, infection, hematoma, adjacent organ thermal damage including intestinal perforation, needle track seeding, and so on. There are few reports in the literature that systematically evaluate the incidence of needle tract seeding and its associated risk factors. And only 2 cases of needle tract seeding of hepatocellular carcinoma after RFA were reported in Korea. We report a case of needle tract seeding of hepatocellular carcinoma after RFA.

바터 팽대부에 생긴 유암종 1예

강명주,지삼룡,박석주,이재익,조영완,김준영,박성재,박은택,이연재,이상혁,설상영,배상균 인제대학교 2006 仁濟醫學 Vol.27 No.-

Carcinoid tumors have been reported in a wide range of organs but most commonly involve the lungs, bronchi and gastrointestinal tract. Within the gastrointestinal tract, appendix is the most common location for carcinoid, followed by the distal small intestine, the rectum, and the stomach. Among these, primary involvement of the ampulla of Vater is extremely rare. We report a case of carcinoid tumor of ampulla of Vater. A 62-year-old man presented with epigastric soreness. Gastroduodenal endoscopy showed hyperemic bulging mass on ampulla of Vater and diagnosed as carcinoid tumor by histologic finding, with immunohistochemical study. In ^(111)In-octreoscan, tumor had regional lymph node metastasis, but no evidence of distant metastasis. Pancreatoduodenectomy with lymph node dissection was performed.

Distribution of the Fairy Pitta (Pitta nympha) in the South Korea: A focus on protected areas

Gil-Pyo Hong(홍길표),Jae-Hoon Kim(김재훈),Seul-Gi Seo(서슬기),So-Yeon Cho(조소연),Bo-Yeon Hwang(황보연),Jong-Hyun Park(박종현),Seung-Yeon Lee(이승연),Ga-Young Kim(김가영),Wan-Hee Nam(남완희),Ha-Cheol Sung(성하철) 한국조류학회 2021 한국조류학회지 Vol.28 No.2

국내 팔색조(Pitta nympha) 분포 현황을 알아보고자 전국 국립공원 등 보호지역 중심으로 총 19개 지역을 조사하였고, 전문가 네트워크를 통해 자료를 보강하였다. 전국 19개 지역을 조사한 결과 북한산, 지리산 등 내륙지역 7개 국립공원에서는 팔색조가 확인되지 않았고, 경남 거제, 남해, 해남, 장흥 고흥 등 남해안과 인접한 12개 지역에서 팔색조 서식이 확인되었다. 또한 전문가 네트워크를 통해 수집한 팔색조 출현 위치 정보 82건을 분석한 결과, 전국 8개 광역지자체 모두 팔색조 서식이 확인되었고, 내륙지역(26.8%)보다 해안지역(73.2%)에서 더 많이 출현하였다. 연구 결과를 종합해보면, 우리나라의 팔색조는 주로 제주도와 남해안 지역을 중심으로 많이 분포하며, 그 보다 적은 개체수가 내륙 지역에 넓게 분포하고 있는 것으로 나타났다. The present study investigated the current distribution of Fairy Pitta (Pitta nympha) in South Korea. A total of 19 study areas, including protected areas such as national and provincial parks in South Korea were surveyed, and additional data obtained from an expert network. According to the results, Fairy Pitta was absent in seven inland national parks, including Mt. Bukhan and Chiri parks. Fairy Pitta inhabited 12 areas near the southern coast of South Korea, including Geoje, Namhae, Haenam, Jangheung, Goheung, and Gyeongnam Province. The analysis results of 82 datasets obtained from experts with regard to the locations where Fairy Pitta have been spotted showed that the bird inhabits all the eight metropolitan regions in South Korea, and is more frequently spotted in coastal areas (73.2%) than in inland areas (26.8%). The findings demonstrate that Fairy Pitta is mainly distributed in Jeju Island and the southern coast of South Korea, and is distributed in inland areas at relatively lower numbers.

하악골 전돌증 환자에서 양악 수술과 하악 단독 수술의 술 후 안정성에 관한 연구 : Jaw Surgery And Single Mandibular Surgery in Mandibular Prognathism

박재완,이동근 원광대학교 치의학연구소 2002 圓光齒醫學 Vol.11 No.3

Le-Fort Ⅰ Osteotomy is considered by many surgeons to be a safe and predictable method for correcting various dentofacial deformities. However, there are controversial options concerning the stability of two-jaw surgery (Le-Fort Ⅰ osteotomy and sagittal split ramus osteotomy) compared to single mandibular surgery (sagittal split ramus osteotomy). The purpose of this study was to evaluate the post-operative stability of mandible in two-jaw surgery and single mandibular surgery, to help the establishment of accurate treatment planning in patients with a skeletal class Ⅲ malocclusion. There were 15 patients who had been undergone two-jaw surgery and 20 patients who had been undergone single mandibular surgery. Lateral cephalograms of these 2groups ; Preoperation and immediate postoperation, postoperatively 1month, postoperatively 3months, at the latest follow up(>6months) ; were analyzed by linear measurement to evaluate changes in position (hard tissue B, Pogonion point) and compare relapse both group. The results obtained were as follows ; In view of B-point, the horizontal relapse rate of single mandibular surgery was 10.17% at post-op 1months, 12.52% at post-op 3months, 13.01% at post-op 6months and two-jaw surgery was 10.23% at post-op 1month, 11.84% at post-op 3months, 12.97% at post-op 6months. the horizontal relapse rates of Pogonion point were 10.78 at post-op 1month, 12.21% at post-op 3months, 12.98% at post-op 6months in single mandibular surgery and those were 10.27% at post-op 1month, 11.33% at post-op 3months, 12.01% at post-op 6months in two-jaw surgery. In terms of vertical relapse rate, rates of B point were 22.96% at post-op 1month, 28.30% at post-op 3months, 29.56% at post-op 6months in single mandibular surgery and 21.14% at post-op 1month, 25.45% at post-op 3months, 28.86% at post-op 6months in two-jaw surgery. Those of Pogonion point were 26.63% at post-op 1month, 28.40% at post-op 3months, 29.29% at post-op 6months in single mandibular surgery and 20.20% at post-op 1month, 25.44 at post-op 3months, 27.68% at post-op 6months in two-jaw surgery. There were no statistical difference between single mandibular surgery and two-jaw surgery in mandibular stability.

뇌출혈이 합병된 감염성 심내막염 1례

박동건,이재욱,권삼,이동철,강승완 동국대학교 경주대학 1997 東國論集 Vol.16 No.2

감염성심내막염에 의한 신경계 합병증은 색전성 뇌경색, 색전성 뇌출혈, 두개내 패혈성 동맥류, 뇌농양, 뇌막염등 다양한데 항생제 요법의 발달과 판막치환술에도 불구하고 그 빈도는 감소되지 않고 있다. 이 중 두개내 패혈성 동맥류의 파열에 의한 뇌출혈은 사망률이 80%로 치명적일 수 있어 조기 발견 및 적절한 치료가 필요하다. 저자들은 두통, 열감, 근육통 등의 증상으로 내원하여 감염성 심내막염으로 진단받고, 항생제 치료로 임상증세의 호전중에 심한 두통과 전신적 발작이 있은 후 갑자기 발생한 두개내 뇌출혈을 심장초음파 및 뇌 컴퓨터 단층촬영을 통하여 진단, 경험하였기에 문헌고찰과 함께 보고하는 바이다. The complications of infective endocarditis may involve any organ system ie, cardia, neurologic, vascular, dermatologic, and kidney. Extracardiac complications are usually caused by either embolization of vegetations or deposition of immune complexes. Neurologic complications remain a significant problem in bacterial endocarditis and have been reported to occur in up to 20% to 40% of cases of infective endocarditis. The various types of central nervous system disease seen in patients with infective endocarditis are cerebral embolism (with infarction or with intracerebral hemorrhage), intracranial mycotic aneurysm, seizures, brain abscess, meningitis, mental change, psychiatric disorder. Mycotic aneurysms are uncommon but not rare and are an important cause of local or systemic sepsis and acute hemorrhage following aneurysmal rupture. Cerebral mycotic aneurysms have been noted in 2∼10% of cases of bacterial endocarditis and account for 2.5∼6.2% of all intracerebral aneurysms. We have experienced a case of neurologic complication due to infective endocarditis in a 23 year-old female patient, who admitted to our hospital because of fever, chill, headache, myalgia. This case was diagnosed by echocardiography, brain computed tomography. The patient died of sudden intracerebral hemorrhage in the 53th hospital day despite intensive medical treatment. We report one case of intracerebral hemorrhage complicated with infective endocarditis.

용접순서와 자중이 용접변형에 미치는 영향에 관한 연구

박정웅,강재완 朝鮮大學校 建設技術硏究所 2005 建設技術硏究 Vol.25 No.1

Welding deformations are affected by various factors. This research investigates effects of welding sequence and self-weight on welding deformation. According to the results by equivalence load method, magnitude of welding deformation with self-weight is about twice one without self-weight on parallel weld path component. But welding deformation with the components used in this research are not affected by welding sequence

저독성 난연제를 첨가한 에폭시 수지의 경화 동력학 및 유변학적 특성

박수진,송수완,이재락,민병각,신재섭 한국공업화학회 2004 공업화학 Vol.15 No.1

본 실험에서는 2관능성 에폭시 수지(EP)에 저독성 난연제인 tris (chloroisopropyl) phosphate (TCPP) 를 100:0~100:40 phr의 비율로 첨가한 후 이에 따른 경화 동력학과 유변학적 특성을 고찰하였다. 2EP/TCPP 시스템의 경화 활성화 에너지(E_(a))와 진화량(α)은 동적 DSC를 통하여 알아 보았으며, 유변학적 특성은 레오미터를 이용하여 등온 조건하에서 고찰하였다. 또한, 난연성 test인 UL94를 통하여 TCPP 함량에 따른 난연성의 변화를 살펴보았다. 실험 결과, E_(a)는 에폭시 수지 내에 TCPP의 함량이 증가할수록 증가하는 반면, 전화량(α)과 전환속도(d/dt)는 감소하는 경향을 나타내었다. 가교 활성화 에너지(E_(c)) 값은 구한 E_(a) 값과 유사한 경향을 나타내었으며, 이러한 결과는 TCPP의 증가로 인해 2EP 고유의 interpenetrating polymer network (IPN) 구조형성이 방해받기 때문이라 판단된다. 또한, TCPP의 함량이 30 phr 이상인 경우 난연성이 향상되었는데, 이는 TCPP 내의 난연성을 갖는 인과 염소의 영향으로 판단된다. In this work. the cure kinetics and rheological properties of difunctional epoxy (2EP) resins containing a low toxicity flame-retardant based on tris(chloroisopropyl) phosphate (TCPP) are investigated. The 2EP/TCPP content was varied within 100 : 0 ∼100 : 40 phr. The cure system are studied under the isothermal condition using a rheometer, Also, the flame resistance is determined by UL94 vertical test. From experimental results, the Ea of 2EP/TCPP system is higher than that of pure 2EP. While, the conversion (α1 and conversion rate (d/dt) are decreased with increasing of the TCPP content. The cross-linking activation energy (E_(e)) of the system is similar to (E_(a)). This is probably due to the increase of TCPP content. which obstructs the formation of interpenetrating polymer network (IPN) structure of the 2EP. Also, the improvement of flame resistance is achieved by addition of 30 phr TCPP in the 2EP/TCPP system. which can be attributed to the existence of incombustible phosphorous and chlorines in the TCPP.

복합 병렬 전단벽 접합부의 전단강도

박완신,한병찬,황선경,윤현도,이재연,이원호 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)

An theoretical study of the strength of hybrid coupled shear wall connections is achieved. The bearing stress at failure in the concrete below the steel coupling beam section is related to the concrete compressive strength and the ratio of the width of the steel coupling beam section to the width of the hybrid coupled shear wall. Also experimental studies are achieved to revise shear transfer strength across connections between coupled shear walls and steel coupling beam. The main test variables were auxiliary details of stud bolts. In this studies. these proposed equations are shown to be in good agreement with the test results reported in the paper and with other test data in the literature.

췌십이지장절제술 후 발생한 지속적인 구토증과 Wernicke 뇌병증

박우영,김성완,이삼연,신일선,김재민,박기형,양수진,윤진상 大韓神經精神醫學會 2007 신경정신의학 Vol.46 No.3

Wernicke encephalopathy is an acute neurologic disorder attributable to thiamine (vitamin B1) deficiency. We report the case of a 61-year-old female patient who presented Wernicke encephalopathy after surgery for pancreatic head cancer. From the ninth postoperative day, she had suffered from nausea and vomiting and had difficulties ingesting food, she was given total parenteral nutrition (TPN), but lacked adequate vitamin (thiamine) supplementation. After 28 days, she developed ataxia, ophthalmoplegia, and mental confusion. The magnetic resonance image showed pathologic changes in the medial thalamus,periaqueductal gray matter, medulla and mamillary bodies. The blood level of thiamine was very low. After intravenous and oral supplementation of thiamine (200 mg/day), consciousness was soon normalized and neurologic symptoms have gradually been improving. Nausea and vomiting disappeared after administration of a low dose of mirtazapine (7.5 mg/day). We emphasize the importance of thiamine supplementation to the patients who suffer from vomiting which hinders them from taking food and who require prolonged TPN.

고정화된 TiO_2 광촉매를 이용한 암모니아 제거반응

박용완,김영철,신재순,박남국 全南大學校 觸媒硏究所 2002 觸媒硏究 論文集 Vol.23 No.-

Physical properties of TiO_2 photocatalyst prepared by sol-gel process and photodegradation behaviors of NH_3 gas over TiO_2 immobilized on glass bead were studied. The surface area and average pore size of photocatalyst C were 148.3m^2/g and 138.3A˚, respectively. The XRD patterns of TiO_2 photocatalyst prepared by sol-gel method which were calcinated 400℃ showed that the catalyst had almost an anatase structure. Optimum thickness of TiO_2 layer was 5㎛ and immobilization frequence was four times. TiO_2 glass bead immobilized by powder coating method was a little better effective than it prepared by sol-gel method, but restriction of supports and economy were less than it immobilized by sol-gel method. The highest treatment efficiency was obtained when the wavelenght of UV lamp was 254nm. The photodegradation efficiency compared with some commercial TiO_2 photocatalyts, TiO_2 photocatalyst prepared by sol-gel method in laboratory is better.