소아 수부 화상의 임상적 고찰

최재구 건국대학교 의과학연구소 1995 건국의과학학술지 Vol.5 No.-

From March 1991 to December 1994, 243 burn patients under the age of fifteen visit to Kon-Kuk university medical college Hospital. Among of them, 75 burn sites were hand. In these pediatric hand burn patients, retrospective study was done for the review of following issues : ago and sex distribution, cause of burn, hourly distribution of accident, depth of burn and method of treatment. The summary of results were as follows: 1) Pediatric hand burn was 30.86% of all visited burn patients under 15 years old. 2) The most common cause of burns was scalding burn as 44 cases(58.66%), followed by contact burn as 12 cases(16.00%) and steam burn 12 cases(16.00%), electrical burn as 4 cases(5.33%) and flame burn as 3 cases(4.00%). 3) The most prevalent age group was under 1 year old 25 cases(33.33%). 4) The most common injured time range was between 4 p.m. and 8p.m. 29 cases(38.66%). 5) The depth distribution was as follows: 2nd degree 60 cases(80.00%), 3rd degree 11 cases(14.66%), 1st degree 3 cases(4.0%) and 4th and degree 1 case(1.33%). 6) The method of treatment was as follow distribution: conservative treatment 73 cases(96%) and operative treatment 3 cases(4%) and admission was 18 cases(14.00%). 7) The 2 cases(2.66%) (were complicated as scar contracture with syndactyly in one case.

무선 ATM에서 QoS를 유지하기 위한 TDMA 기반의 슬롯분배 방법 MAC 알고리즘

이기현,최재구 明知大學校 産業技術硏究所 2000 産業技術硏究所論文集 Vol.19 No.-

Next generation wireless network will be developed as mobile communication which will support ATM-based multimedia traffic. It is desirable to exploit an effective MAC(Medium Access Control) Protocol in order to support multimedia traffic with variety of QoS characteristics on wireless networks. In this dissertation, current multimedia applications are classified by rt-CBR(real-time Constant Bit Rate), voice, rt-VBR(real-time Variable Bit Rate), and nrt(non-real time) services according to real-time or non real time and constant or variant characteristics in the proposed TDMA based MAC Protocol. The proposed TDMA based MAC protocol guarantees the balanced QoS among real time multimedia services with diverse and different traffic characteristics and manages program effectively since the services with same traffic characteristics have their own slot allocation algorithms.

DHPLC를 이용한 유전자 돌연변이 검출

최재구,장원철 동남보건대학 2004 論文集-東南保健大學 Vol.22 No.2

The structural alteration and overexpression of p53 protein are the most common genetic abnormalities in various kinds of human cancer.

Solid-state Pulse Modulator for a 1.7-MW X-band Magnetron

최재구,Yong-Moon Shin,최영욱,Kwan-Ho Kim 한국물리학회 2014 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.64 No.9

Medical linear accelerators (LINAC) for cancer treatment require pulse modulators to generatehigh-power pulses with a fast rise time, flat top and short duration to drive high-power magnetrons. Solid-state pulse modulators (SSPM) for medical LINACs that use high power semiconductorswitches with high repetition rates, high stability and long lifetimes have been introduced toreplace conventional linear-type pulse generators that use gaseous discharge switches. In this paper,the performance of a developed SSPM, which mainly consists of a capacitor charger, an insulatedgatebipolar transistor (IGBT) - capacitor stack and a pulse transformer, is evaluated with a dummyload and an X-band magnetron load. A theoretical analysis of the pulse transformer, which is acritical element of the SSPM, is carried out. The output pulse has a fast rise time and low droop,such that the modulator can drive the X-band magnetron.

전기 화상으로 인한 심부 조직괴사에서의 유리피판술의 적용

김준범,최재구 건국대학교 의과학연구소 1996 건국의과학학술지 Vol.6 No.-

The commercial use of the electricity began in 1849. Since that time there has been progressive increase in the incidence of accidents due to electricity. In high voltage electrical burn, it may resulted in deep destruction of the underlying muscle, nerves, bone, and vessels under viable skin. Entrance site and output site of electrical burn are usually etremities, and so we experienced exposure or bone and joint, loss of function, and amputation in a significant number of cases. Microvascular procedures under these circumstances may well represent the most expeditious methods of salvaging an extremity even when more conventional techniques are available such as skin graft, local flap etc. We have treated 4 cases of eletrical injury with free flap : 2 lateral arm flap, 1 scapular flap, 1 radial forearm flap. Although existence of minor complication, the result were excellent.

충북지역 안검하수증에 관한 임상적 고찰

최재구 건국대학교 의과학연구소 1994 건국의과학학술지 Vol.4 No.-

The blepharoptosis has many causes and may be congenital or acquired, and due to a weakness of the levator or Muller's muscle. The management of blepharoptosis mainly depends on the degree of ptosis and the amount of levator function. The result of surgical correction of the blepharoptosis is determined by the nature of ptosis, methods of operation and surgeon's skill. Authors had experienced 24(30 eyed) patients of blepharoptosis from August, 1989 to March, 1994. The results were obtained as follows: Most of the patients were congenital in origin. The ratio of congenital versus acquired blepharoptosis was 18:6, monocular versus biocular was 12:6, male versus female was 9:9 and right versus left was 7:5. In the function of the levator muscle, 9 eyes were less than 2mm, 21eyes were between 2mm to 6mm. In review of postoperative complications, incases, these symptomes were improved postoperatively after 5 months. Overcorrection was found in 3 cases, undercorrection was found in 2 cases, eyelid fold deformity was found 1 case, exposure keratitis was found 1 case.

흉ㆍ요추부에 발생한 완전 척추 이분증의 치험 1례

김준범,안덕균,김재민,최재구 大韓成形外科學會 1994 Archives of Plastic Surgery Vol.21 No.2

Several techniques have been described for the repair of thoracolumbar soft tissue defect. These techniques range from direct closure of small defect and advancement of local tissue to the use of large myocutaneous units such as the lattissimus dorsi flap for large defect. We report a successful repair of a male neonate with large thoracolumbar myeloschisis measuring 6×8cm by bilateral transposition flap and the gluteus maximus muscle advancement at the first spontaneously without complication and no cerebrospinal fluid leakage was noted. A case report and review of literatures are the basis of this report.

지방 흡입술을 이용한 경부 지방종의 치료

김준범,최재구 건국대학교 의과학연구소 1996 건국의과학학술지 Vol.5 No.-

Lipoma, a fatty tumor, is one of the most common tumors of the body. It is derived from a preadipose tissue of mesenchymal origin, as is normal fat. Lipomas are most commonly found in the subcutaneous tissue of the neck and upper trunk. Prior to the development of suction surgery, lipomas had to be removed by surgical excision, which usually resulted in an extensive scar. Now, using SAL(Suction-Assisted Lipectomy), simple lipomas can be removed adequately, leaving virtually no scar deformity. It is imperative that a sample biopsy be sent for pathologic diagnosis so as to not mistake lipoma for liposarcoma. Two patients with lipoma of the neck were successfully treated with liposuction rather than classical surgical lipectomy.

서혜부 유리 피판술을 이용한 Romberg씨 질병의 치험

안덕균,김준범,최은정,강동구,최재구 건국대학교 의과학연구소 1993 건국의과학학술지 Vol.3 No.-

본 건국대학교 의과대학 성형외과학 교실에서 Romberg씨 질병으로 좌측의 안면 함몰을 주소로 내원한 여자 환자 1례에서 탈상피화시킨 서혜부 유리 피판술을 시행하여 좋은 결과를 얻었기에 이에 문헌 고찰과 함께 보고하는 바이다. Romberg's disease is progressive hemifacial atrophy, which begins before the age of 20-years, affecting the subcutaneous tissue and skin with later involvement of the muscle and osteocartilagenous frame work. The disease may be heralded by pigmentary changes of the hair, skin, or iris. When present, atrophy may originate from the cutaneous stigmata and may become so sharply delimited by the midline. There are a number of methods to correct the soft tissue deformity of the face. We had experienced 22-year old female patient who had a moderate soft tissue atrophy on the left side of the face. The patient was treated with a de-epithelized groin free flap. Superficial circumflex iliac vessels were used as donor pedicle and the superficial temporal vessels were recipient vessel. Initially moderate bulkiness was noted but after 6 months follow-up period the external contour was good and the patient satisfied. A case presentation and review of literatures are the basis of this report.

정맥유리피판술을 이용한 수부의 피부결손 재건

김용희,황종익,이동철,조성배,최재구 大韓成形外科學會 1995 Archives of Plastic Surgery Vol.22 No.4

Traumatic or thermal injury to the hand often leads to multidigital skin loss, exposing the tendons or joints. Therapeutic options for salvaging these digits include local, regional or distant flap transfer and free flap transplantation. In each case, however, there are significant drawbacks in clinical application to the sites of the injuries. In 1981 Nakayama suggested the feasibility of raising an arterialized venous flap based on an experimental study in an abdominal flap in rats. In 1984 Honda reported the first clinical application of the venous flap that recieved blood supply only through venous inflow and out-flow. We have experienced a series of 58 venous free flaps in the last 6 years. The results were as follows: The complete survival rate was 89% in the arterialized venous flap and 60% in the V-V Type(vein to vein anastomosis)venous flap.