前頭蓋窩에 局限된 腦硬膜外血腫의 經驗

崔德永,朴孝一,蔡進,沈輔星 최신의학사 1968 最新醫學 Vol.11 No.12

Epidural Hematoma Confined To The Anterior l; ossa. Duck Tung Choi, M.D., Hyo B Park, M.D., Jin Chae, M.D., and Bo Sung Sim, M.D. Department. of Neurosurgery, Seoul National University, College of Medicine, Seoul, Korea. Epidural hematomas confined to the anterior cranial fossa are rare lesions. There are only 24 reported -cases in the Iiterature. A. 47-year-old male patient was admitted to the Seoul National University Hospital on August 1, 1967. He suffered a blow on his head and lost his consciousness for about 10 minutes and about 4 hours later became lethalgic and confused. The left pupil became dilated and fixed, the deep tendon reflexes of both sides were increased and bilateral ankle clones and Babinskis sign were positive. The plain skull x-ray revealed linear fracture in the left frontal region. The left carotid angiogram showed posteriar shift of the left anterior carebral artery. Following removal of the huge epidural hematoma confined to the left anterior -cranial fossa, the patient was discharged on the 60 th postoperative day in excellent condition.

家兎組織의 Adenosine Diphosphate Ribose Pyrophosphohydrolase의 性狀

崔德瀯 全南大醫大 1970 전남의대학술지 Vol.7 No.4

뇌졸중의 외과적 치료

최덕영 중앙대부설한국의과학연구소 1988 한국의과학 Vol.20 No.2

심낭삼출 환자의 임상적 고찰

최덕영 대한흉부심장혈관외과학회 1995 Journal of Chest Surgery Vol.28 No.5

We have experienced the 37 patients of pericardial effusion during last 8 years[1986-1993 . They were 17 male and 20 female patients, and their age range was 6months to 80 years.The causes of this pericardial effusion were 10 cases of tuberculosis, 7 cases of malignancy, 2 cases of acute pyogenic infection, 2 cases of postpericardiotomy pericardial effusion, 2 cases of trauma, 1 case of congenital heart disease, 1 case of SLE, and other 12 cases of unknown origin. All patients, except one, were managed by pericardiotomy with subxiphoid tube drainage. One case was managed by pericardiectomy. After operation, their symptoms and sign were dramaticaly improved. However, 3 patients were died postoperatively. Two of them were died of respiratory failure. One of them was died 28 months later with unrelated cause. They have already far advanced lung cancer. We conclude that the pericardiotomy with subxiphoid tube drainage was effective treatment in the patients with pericardial effusion.

Rett 증후군 환자에서의 자율신경 활성도 및 심박수 변이도 측정

최덕영,장진하,정희정,Choi, Deok Young,Chang, Jin Ha,Chung, Hee Jung 대한소아청소년과학회 2003 Clinical and Experimental Pediatrics (CEP) Vol.46 No.10

Purpose : In Rett syndrome patients, the incidence of sudden death is greater than that of the general population, and cardiac electrical instability including fatal cardiac arrhythmia is a main suspected cause. In this study, we are going to find out the possible cause of the higher risk of sudden death in Rett patients by the evaluation of heart rate variability, a marker of cardiac autonomic activity and corrected QT intervals. Methods : Diagnosis of Rett syndrome was made by molecular genetic study of Rett syndrome (MECP2 gene) or clinical diagnostic criteria of Rett syndrome. Heart rate variability and corrected QT intervals were measured by 24 h-Holter study in 12 Rett patients, and in 30 age-matched healthy children with chief complaints of chest pain or suspected heart murmurs. The were compared with the normal age-matched control. Results : Patients with total Rett syndrome, classic Rett syndrome, and Rett variants had significantly lower heart rate variability(especially rMSSD)(P<0.05) and longer corrected QT intervals than age-matched healthy children(P<0.05). Sympathovagal balance expressed by the ratio of high to low frequency(LF/HF ratio) also showed statistically significant differences between the three groups considered(P<0.05). Conclusion : A significant reduction of heart rate variability, a marker of autonomic disarray, suggests a possible explanation of cardiac dysfunction in sudden death associated with Rett syndrome.

단순 이차성 심방 중격 결손의 자연 경과와 성장에 따른 결손의 크기 변화

최덕영,최재영,김미진,설준희,이승규,Choi, Deok Young,Choi, Jae Young,Kim, Mi Jin,Sul, Jun Hee,Lee, Sung Kyu 대한소아청소년과학회 2003 Clinical and Experimental Pediatrics (CEP) Vol.46 No.9

Purpose : This study was performed to follow the natural course and size change of isolated atrial septal defect(ASD) secundum. Methods : Among the newly diagnosed with ASD secundum at the division of pediatric cardiology in Yonsei cardiovascular hospital from January 1996 to December 2000, 89 patients with pure ASD secundum were checked by the serial echocardiographic evaluation to measure the size change. Results : There was a statistical difference(P<0.05) in the rate of spontaneous closure and size change of the defect between the group of bigger defect(>8 mm) and the group of smaller defect (${\leq}8mm$). There was also a statistical difference(P<0.05) in the rate of spontaneous closure and size change of the defect between the group of younger than three years of age and the group of older than three years of age. The initial size of the defect and change of size were the significant influencing factors in the rate of spontaneous closing of ASD. In the group of patients who have persistent ASD, the size of defect showed a tendency of increasing size of defect with the age(P<0.005); however in the correction of these values by the body surface area of each patients, there was no statistical difference. Conclusion : The possibility of spontaneous closure of pure ASD secundum was higher in the group of patients who have smaller defect and who were younger. The ASD secundum that did not have spontaneous closure showed an increase in size with the growth of the patients; however when this size was corrected by the body surface area, there was no statistical difference. The closure of the defect was at 26.2 months of age so close follow-up of the patients is important.

과장 또는 가장된 신경계통의 증후군에 대한 감별진단에 대하여

최덕영 중앙대부설한국의과학연구소 1972 한국의과학 Vol.4 No.1

악성림프종과 병발한 폐의 편평세포암종 -1례보고-

최덕영,손동섭,조대윤,Choe, Deok-Yeong,Son, Dong-Seop,Jo, Dae-Yun 대한흉부심장혈관외과학회 1997 Journal of Chest Surgery Vol.30 No.1

We have experienced a case of squamous cell carcinoma of lung mixed with malignant Iymphoma. The patient was a 19-years-old male. He was a non-smoker. Right pneumonectomy was done. We could not find any evidences of metastasis. The postoperative course was uneventful The tissue diagnosis was confirmed by immunohistochemical method. The Iymphoma recurred at 3 months after operation and the patient was dead at 5 months After operation because of respiratory failure.

일측성 후방접근법을 이요한 흉요추부 골절의 전후방 동시 척추고정술

최덕영,김영백,여상준,박승원,황성남 대한신경외과학회 2004 Journal of Korean neurosurgical society Vol.35 No.4

Objective : The purpose of this study is to report the technical feasibility and the result of one stage operation for the bursting fracture of the thoracolumbar spine by posterior approach. Methods : Seven patients underwent corpectomy and replaced the space with titanium mesh cage filled up with autologous bone pieces through unilateral posterior route after removal of the facet joint and the pedicle followed by pedicle screw fixation at the same surgical field. Results : All patients tolerated the procedures well except one patient complicated with air embolism. Postoperative radiographs showed effective decompression and well placed instruments. Preoperative neurological deficits disappeared completely in two patients but some deficits persisted in the remainders. In two patients, epidural venous bleeding was troublesome and he needed transfusion of 5 pints of packed red blood cell. And another patient complicated with air embolism during operation was recovered with impunity after operation. To insert the mesh cage through the narrow corridor posterolaterally, it was unavoidable to sacrifice one spinal root. Conclusion : In spite of technical difficulty, one stage spondylodesis for the bursting thoracolumbar spine though unilateral posterior approach seem to be an effective operative procedure.

Seed-layer 공정을 이용한 Ba_0.66Sr_0.34TiO₃박막의 제조 및 전기적 특성 연구

최덕영,박철호,손영국 한국세라믹학회 2003 한국세라믹학회지 Vol.40 No.2

R.F. Magnetron Sputtering법을 이용하여 Pt/Ti/ $SiO_2$/Si기판 위에 seed-layers와 $Ba_{0.66}$S $r_{0.34}$Ti $O_3$박막을 제조하였다. 다양한 기판온도에 따른 BST 박막의 전기적인 특성(정전용량과 누설전류)과 seed-layer층이 BST 박막에 미치는 영향을 조사하였다. BST 박막은 seed-layer층을 삽입함으로써 박막의 결정성이 향상되었고, 박막의 기판온도(결정화온도)도 상당히 낮출 수 있었다. 순수한 BST에 비하여 seed-layer를 삽입한 BST는 높은 유전상수와 낮은 유전손실 및 낮은 누설전류를 가지는 우수한 전기적 특성을 나타내었다. BST 박막의 전기적 특성은 기판온도에 따라 영향을 받고, seed-layer에 의해 향상됨을 알 수 있었다. $Ba_{0.66}Sr_{0.34}TiO_3$ thin films and seed-layers were deposited on $Pt/Ti/SiO_2/Si$substrate by R.F. magnetron sputtering method. Effects of various substrate temperature conditions on electrical properties (such as capacitance and leakage current) of BST thin films were studied. The effect of seed-layer was also studied. When seed-layer was inserted between BST and Pt, the crystallization of the BST thin films was considerably improved and the processing temperature was lowered. Compared to the pure BST thin films, dielectric constant, dielectric loss, and leakage current of BST thin films deposited on the seed-layer were considerably improved. It could be revealed that electrical properties are influenced by the substrate temperatures of BST thin films and are enhanced by the seed-layer.