의도적 재식술을 이용한 치관-치근 파절된 미성숙영구치의 치험례

류정아,최형준,이제호,최병재,손흥규 大韓小兒齒科學會 2004 大韓小兒齒科學會誌 Vol.31 No.2

본 증례에서는 치아외상으로 치관-치근 파절된 미성숙 영구치의 치료에 대해 서술하고자 한다. 7세 환아의 상악 좌측 중절치의 치아 파절선이 치은연하로 치아장축을 따라 치아전체의 1/2까지 연장되어 있었다. 수직적 치관-치근 파설된 치아에서 그 예후는 불량하며 발치가 일반적인 처치이나 성장기 아동에서 상악중절치의 발치는 치조골 흡수, 심미적 문제, 발음문제 등 여러 합병증을 초래한다. 치은연하로 치관-치근 파절된 치아의 치료 방법으로 치은연상만 수복하는 방법과 치은판막을 형성하여 수복하여 주는 방법, 교정력을 이용하여 정출시키는 방법과 수술로써 발치하여 정출시키는 방법 등이 있다. 본 증례에서는 치아를 의도적으로 발치한 후 접착용 레진 시스템을 분리된 치아 파절편을 부착한 후 재식하였다. 1년 동안 관찰한 결과 현재 특이한 임상적 증상은 없으며 심미적으로도 만족할 만하다. 접착용 레진 시스템의 개발과 함께 본 술식은 외상을 많이 받는 혼합 치열기 아동에서 치관-치근 파절된 미성숙 영구치의 한 치료법으로 고려할 수 있다고 생각되어 이에 보고 하는 바이다. This case report describes an uncommon treatment method for crown-root fractured incisor with immature root. A 7-year-old girl was referred for treatment of crown-root fractured maxillary central incisor. The fracture line extended to 1/2 of the total tooth length with incomplete root formation. The prognosis of crown-root fracture is usually poor and extraction is usually undertaken. But, in the mixed dentition, extraction of maxillary permanent incisor results in many complications, such as resorption of alveolar bone, poor esthetics, pronunciation and mastication. Conservative therapy in the permanent dentition comprises of few treatment modalities ; supragingival restoration, gingivectomy, orthodontic extraction of apical fragment, surgical extrusion of apical fragment with or without rotational replantation. However, in this case, these indications are not applicable, so intentional replantation with adhesive resin system is the treatment of choice. The tooth was followed-up for 12 months. Currently, there are no symptoms. Since this modality adopts the respective advantages of both intentional replantation and adhesive treatment, it might be the treatment of choice in cases of vertical crown-root fracture.

기체유동층의 층팽창 특성

류호정,김정우,구형남,최정후 건국대학교 산업기술연구원 1999 건국기술연구논문지 Vol.24 No.-

The bed expansion characteristics have been investigated in a fluidized bed (0.1 m I.D., 2.4 m height) with variations of the gas velocity (0.015 - 1.0 m/s), the static bed height (0.1, 0.2m) and the type of particle (Geldart group A, B and D). The ratio of bed expansion increased as the gas velocity increased. However, it decreased with an increase of the static bed height. It also decreased in order of Geldart group A, B and D particles at the same excess gas velocity and static bed height. A correlation on the bed expansion has been proposed on the basis of the present experimental result.

투석 환자와 비투석 환자에서 고칼륨혈증의 원인 및 치료에 대한 고찰

조형도,최창렬,최성일,강태영,이동규,유준호,한상웅,김호중 대한신장학회 2001 대한신장학회잡지 Vol.20 No.5

모낭의 하부 1/2을 이식시 모낭의 재생

박세정,류형호,서정민,김정철 大韓成形外科學會 1999 Archives of Plastic Surgery Vol.26 No.3

We have examined the regenerative capabilities of the human scalp hair follicle after grafting the lower half of the follicle. Twenty-eight of 32 intact whole-hair follicles isolated from the human scalp regenerated hairs when grafted onto the forehead of the same person. Seven of the 15 lower-half follicles regenerated complete hair follicles 8 months after grafting showed that the lower-half follicle implant reconstituted the complete hair follicle. The sebaceous gland was not regenerated, but there was an outgrowth in the sebaceous gland region. Some grafts formed epithelial cysts. Two years after grafting, the histological examination of the regenerated follicle from the lower-half implant showed that the sebaceous gland was completely regenerated. While an intact follicle shows prominent naked shaft outgrowth, the sheath grows concomitantly with the shaft in lower-half follicles in culture. If grafted lower-half follicles were located too deep, the regrown sheath could not reach the epidermal layer. In this situation, the formation of an epidermal cyst was likely.

가시층 분석 기법을 이용한 경관고도규제계획에 관한 연구 : 진주시 역사경관 보존을 중심으로

이춘석,강호철,류남형 진주산업대학교 1999 산업과학기술연구소보 Vol.- No.6

Chinju is famous for an old castle located in downtown. To conserve its historic landscape, some districts on the north of the castle have been under the height regulation. The historic landscape, however, is being seriously disturbed by the huge buildings newly constructed at the south of the castle. So, and alternative height regulation is required to make up its deficiency. This study examined the ‘View Floor Analysis(VFA)’as a height regulation planning tool, and suggested an alternative ‘Building Height Regulation Plan’with its results. The VFA is a new method to find out the maximum building height permissible from the differences between the existing topography and an imaginary floor which repersents building height theresholds, The process of the VFA used in this study was ① digitizing contours, ② converting digital contours to DEM, ③ manipulating control lines(super-imposing & text editing), ④ making visual floor(TIN) and converting it to raster data, and ⑤ map calculating(map algebra). The results were as follows: 1.At most, three stories(9m) buildings were permissilbe in the districts by the rear-gate of the castle, 2.But, very tall buildings over even twenty stories were allowable at Deulmal, Okbong, and the districts near the station. 3.The closer to the castle, the shorter building permissible. And, the closer to the mountains around the city, the taller building allowable.

함입된 상악 중절치의 외과적 재위치 후 예후

민성진,최형준,류정아,김성오,이제호,최병재,손흥규 대한소아치과학회 2006 大韓小兒齒科學會誌 Vol.33 No.3

혈액투석 환자의 가성 고칼륨혈증

최창렬,조형도,강태영,이준수,한호,정청일,이동규,유준호,한상웅,김호중 대한신장학회 2001 대한신장학회잡지 Vol.20 No.5

흰쥐에서 음경발기 평가의 척도로서 음경해면체내압측정술 확립

송윤섭,김용준,이광우,김준모,문기혁,박영호,민영기,유형균,김형건 순천향의학연구소 2001 Journal of Soonchunhyang Medical Science Vol.7 No.1

Purpose: Because studies about the control of penile erection at the entral nervous system was dependent on the animal experiments, establishment of measuring penile erection is important to evaluate the effects changes at the central nervous system on the penile erection. Intracavernous pressure measurement in rats has been introduced as a suitable index for the evaluation of penile erection but this method is invasive and technically difficult. So, we established the intracavernous pressure measurement in rats as the experimental index for penile erection. Materials and Methods: 42 male adult Sprague-Dawley rats (250-300gm) were divided to saline or papaverine treated group. Rats were placed on a heating table to maintain their body temparature and anesthetized with 50mg/kg of pentobarbital sodium by intraperitoneal injection. A cannula was inserted to the left carotid artery to measure systemic blood pressure. Saline (0.05, 0.1ml), papaverine(0.05, 0.1, 0.25, 0.5, 1.0, 2.0mg) were injected intracavernously via 26 guage needle filled with saline or papaverine which connected to pressure transducer and polygraph was inserted into the corpus cavernosum on one side to inject the drug and to measure intracavernous presure. Results: Properly executed insertion and intracavernous administration produced a instantaneous but transient rise in intracavernous pressure that substantially stabilized and maintained at 5.4±0.4mmHg. Intracavernous pressure and duration of penile blood flow following intracavernous injection of papaverine are increased comared to those of saline. Conclusions: Monitoring intracavernous pressure in rats represents a suitable index for the evaluation of penile erection in small laboratory animals.

Prospective randomized controlled trial (phase III) to comparing laparoscopic distal gastrectomy with open distal gastrectomy for gastric adenocarcinoma (KLASS 01)

Hyung-Ho Kim,Sang-Uk Han,Min-Chan Kim,Woo Jin Hyung,Wook Kim,Hyuk-Joon Lee,Seung Wan Ryu,Gyu Seok Cho,Chan Young Kim,Han-Kwang Yang,Do Joong Park,Kyo Young Song,Sang IL Lee,Seong Yeob Ryu,Joo Ho Lee 대한외과학회 2013 Annals of Surgical Treatment and Research(ASRT) Vol.84 No.2

A randomized controlled trial to evaluate the long-term outcomes of laparoscopic distal gastrectomy for gastric cancer is currently ongoing in Korea. Patients with cT1N0M0-cT2aN0M0 (American Joint Committee on Cancer, 6th edition) distal gastric cancer were randomized to receive either laparoscopic or open distal gastrectomy. For surgical quality control, the surgeons participating in this trial had to have performed at least 50 cases each of laparoscopy-assisted distal gastrectomy and open distal gastrectomy and their institutions should have performed more than 80 cases each of both procedures each year. Fifteen surgeons from 12 institutions recruited 1,415 patients. The primary endpoint is overall survival. The secondary endpoints are disease-free survival, morbidity, mortality, quality of life, inflammatory and immune responses, and cost-effectiveness (ClinicalTrials.gov ID: NCT00452751).

Morbidity and Mortality of Laparoscopic Gastrectomy Versus Open Gastrectomy for Gastric Cancer: An Interim Report—A Phase III Multicenter, Prospective, Randomized Trial (KLASS Trial)

Kim, Hyung-Ho,Hyung, Woo Jin,Cho, Gyu Seok,Kim, Min Chan,Han, Sang-Uk,Kim, Wook,Ryu, Seung-Wan,Lee, Hyuk-Joon,Song, Kyo Young Lippincott Williams Wilkins, Inc. 2010 Annals of surgery Vol.251 No.3

OBJECTIVE:: The aim of this study was to evaluate the safety of this trial with respect to morbidity and mortality. SUMMARY BACKGROUND DATA:: Laparoscopic-assisted distal gastrectomy (LADG) is rapidly gaining popularity. However, there is limited evidence regarding its oncologic safety. We therefore conducted a phase III multicenter, prospective, randomized study comparing LADG with open gastrectomy (ODG). METHODS:: Patient eligibility criteria were pathologically-proven adenocarcinoma, 20 to 80 years of age, preoperative stage I, no history of other cancer, chemotherapy, or radiotherapy. The primary end point was to determine whether there is a difference in overall survival between 2 groups. The morbidity and mortality were compared to evaluate the safety of this trial. The time was decided on the hypothesis that the morbidity of this trial was not significantly different from that of previous reports on open gastric cancer surgeries (17%–20%). This study is registered at ClinicalTrials.gov and carries the following ID number: NCT00452751. RESULTS:: A total of 342 patients were randomized (LADG, 179 patients; ODG, 161 patients) between January 1, 2006 and July 19, 2007. There were no significant differences between the 2 groups in age, gender, and comorbidities. The postoperative complication rates of the LADG and ODG groups were 10.5% (17/179) and 14.7% (24/163), respectively (P = 0.137). Reoperations were required in 3 cases each group. The postoperative mortality was 1.1% (2/179) and 0% (0/163) in the LADG and ODG groups (P = 0.497), respectively. CONCLUSION:: There was no significance difference in the morbidity and mortality between the 2 groups. Therefore, we conclude that this trial is safe and is thus ongoing.