좌측내경정맥도관 삽입 12시간 후에 발생한 심장압전

김태정,차영덕,이성근 대한마취과학회 1998 Korean Journal of Anesthesiology Vol.35 No.1

Central venous pressure(CVP) catheter has become regarded as necessary in the care of the critically ill patients, long time operation and the anesthesia that massive bleeding is anticipated. Exact placement of CVP catheter tip is essential for prevention of complications due to malposition. The correct location of CVP catheter should always be ensured after catheterization as soon as possible. Acute cardiac tamponade is the most serious complication associated with CVP catheter tip malposition that may follow perforation of heart or pericardium. In 54-year old female patient, a catheter that was introduced through the left internal jugular vein entered left pericardiacophrenic vein. We experienced a case of cardiac tamponade caused by malposition of CVP catheter tip after 12hours of left internal jugular catheterization. (Korean J Anesthesiol 1998; 35: 163∼167)

가을 드들강

김태정 천년의시작 2003 (계간)시작 Vol.2 No.2

상대 일본문화의 성격에 대한 고찰

김태정 한국외국어대학 학도호국단 1970 외대 Vol.5 No.1

회사채 신용등급 예측에 관한 연구

김태정,문남희,문성주 한국회계정보학회 2003 회계정보연구 Vol.21 No.-

The purpose of this study is that the financial information selected by three credit rating institutions after IMF financial crisis is still valid when compared to the financial information used in previous studies. In addition, this study evaluates whether or not the prediction improves by including non-financial information in the analysis of the Discriminant model. The results of the study are as follows. First, the study found that the ratios of operation income and the dependence on short term borrowing are useful variables among the financial information selected by the three credit rating institutions. The company with a higher rate of operation inomce received a positive credit rating for its corporate bond and the company with a higher dependence on short term borrowing received a negative credit rating for its corporate bond. Second, when non-financial information was added to the financial information for Discriminant analysis, the study found that the company's governance structure(Large Scale Business Group) and its industry characteristic, as classified by the Korean Industrial Standard Classification , affected the credit rating of the corporate bonds. The accuracy of prediction using year 2000 financial and non-financial information in determining year 2001 corporate bond credit ratings was 79.3%. The accuracy of prediction using year 2001 financial and non-financial information in determining year 2002 corporate bond credit ratings was 78.9%. In contrast, when finance information was only used, the accuracy of prediction year 001 and 2002 credit ratings was 73.7% and 77.9%. Therefore, the study concluded that the credit ratings system that utilized not only financial information but also non-financial information would provide better credit rating predictability. Although non-financial information alone can not improve predictability in corporate bond rating, the study illustrates that there is a significant need for further development of non-financial information to complement financial information beyond the variables used in this study. 본 연구는 신용등급예측 모형 중에서 가장 널리 사용되는 판별모형을 이용하여 신용평가 3사가 IMF 외환위기 이후 신용평가의 예측력을 강화하기 위해 채택한 재무변수가 선행연구에서 그 유용성이 밝혀진 재무변수들보다 나은지를 살펴보고, 국내 신용평가 3사가 신용평가 예측력을 강화하기 위해 중시한 비재무변수가 판별모형에 추가적으로 감안될 경우 재무변수만을 가지고 추정한 모형보다 예측력이 향상되는지를 살펴보고자 하였다. 그 주요한 연구 결과는 다음과 같다. 첫째, 재무표만을 이용한 판별분석 결과 특정기간에 한정되지만 국내 신용평가 3사가 채택한 재무변수인 기업경상이익률, 단기차입금의존도 등은 신용등급예측에 유용한 지표가 될 수 있음을 알 수 있다. 즉, 기업경상이익률이 양호할수록 회사채 신용등급에 양(+)의 영향을 미치는 반면에 단기차입금 의존도가 높을수록 회사채 신용등급에 음(-)의 영향을 미침을 알 수 있다.

만성 승모판폐쇄부전 환자에서 승모판대치술 전 좌심심박출계수의 평가

김태정,이춘수,이성근,이홍식,차영덕,임현경,신혜란 대한마취과학회 2000 Korean Journal of Anesthesiology Vol.39 No.3

Background: Left ventricular ejection fraction (LVEF) is considered to be an index of LV function. However, LVEF in chronic mitral regurgitation (MR) is overestimated due to a systolic unloading effect into the left atrium and leads to underestimation of the degree of LV dysfunction preoperatively. The purpose of this study was to evaluate the exact degree of preoperative LV dysfunction by LVEF, according to the MR grade. Methods: Transesophageal echocardiography (on transgastric short axis view) was performed to compare LVEF at the Pre- and Post-MVR periods, in 39 patients with chronic MR: group I, MR grade III (n = 16) and group II, MR grade IV (n = 23). Results: LVEF at Pre- and Post-MVR were 63.8 ± 6.1% and 54.8 ± 6.0%, respectively, and the LVEF difference between Pre- and Post-MYR was 9.0 ±3.5 by number (14.1 ±5.3% by ratio) in group I. LVEF at Pre- and Post-MVR were 68.1 ±7.2% and 51.7 ±6.0%, respectively, and the LVEF difference between Pre- and Post-MVR was 16.4 ±4.2 by number (24.0 ±ratio) in group II. Conclusions: For the exact evaluation of preoperative LV function in patients with chronic MR, we have to subtract 9.0 by number (14.1% by ratio) from the preoperative LVEF in MR grade III and 16.4 by number (24.0% by ratio) from the preoperative LVEF in MR grade IV.

Dysphagia May Be an Independent Marker of Poor Outcome in Acute Lateral Medullary Infarction

김태정,남현우,홍정호,여민주,장준영,정진헌,김범준,배희준,안진영,김종성,한문구 대한신경과학회 2015 Journal of Clinical Neurology Vol.11 No.4

Background and Purpose Te functional recovery afer the lateral medullary infarction (LMI) is usually good. Little is known about the prognostic factors associated with poor outcome following acute LMI. Te aim of this study was to identify the factors associated with poor long-term outcome afer acute LMI, based on experiences at a single center over 11 years. Methods A consecutive series of 157 patients with acute LMI who were admitted within 7 days after symptom onset was evaluated retrospectively. Clinical symptoms were assessed within 1 day afer admission, and outcomes were evaluated over a 1-year period afer the initial event. Te lesions were classifed into three vertical types (rostral, middle, and caudal), and the patients were divided into two groups according to the outcome at 1 year: favorable [modifed Rankin Scale (mRS) score ≤1] and unfavorable (mRS score ≥2). Results Of the 157 patients, 93 (59.2%) had a favorable outcome. Older age, hypertension, dysphagia, requirement for intensive care, and pneumonia were signifcantly more prevalent in the unfavorable outcome group. The frequencies of intensive care (13%) and mortality (16.7%) were signifcantly higher in the rostral lesion (p=0.002 and p=0.002). Conditional logistic regression analysis revealed that older age and initial dysphagia were independently related to an unfavorable outcome at 1 year [odds ratio (OR)=1.04, 95% confdence interval (95% CI)=1.001–1.087, p=0.049; OR=2.46, 95% CI=1.04–5.84, p=0.041]. Conclusions Tese results suggest that older age and initial dysphagia in the acute phase are independent risk factors for poor long-term prognosis afer acute LMI.

건물의 3차원 모델링을 위한 기술

김태정,최순달 한국우주과학회 1995 한국우주과학회보 Vol.4 No.2

Is Conservative Treatment with Antibiotics the Correct Strategy for Management of Right Colonic Diverticulitis?: A Prospective Study

김태정,이인규,박종경,이윤석,시윤,정헌,김형진,이상철,정대영,D. Lee Gorden,오승택 대한대장항문학회 2011 Annals of Coloproctolgy Vol.27 No.4

Purpose: The goals of this study were to identify whether conservative treatment with antibiotics in right colonic divertic- ulitis (RCD) patients, our empirical method used until now, is adequate and to determine how the natural history of RCD is affected by conservative treatment. Methods: This study was designed as a case-control study. Group I was comprised of 12 patients who were managed con- servatively, and clinical data were retrospectively collected. In group II, a total of 49 patients, diagnosed by using diagnos- tic criteria for RCD and managed conservatively, were prospectively included. Results: The period of fasting was 2.7 days, and the hospital stay was 4.6 days in all patients. The intravenous and the oral an- tibiotic periods were 3.8 days and 9.8 days, respectively. There were no statistically significant differences in treatment results between the two groups except the duration of fasting and the hospitalization, and there were no complications under conser- vative treatment. Eight patients (13.1%) had recurrent diverticulitis during the follow-up period. The recurrence risk showed no significant difference between the groups. The RCD-free period after management was 60.1 months, and patients with recurrent RCD were treated by conservative treatment or laparoscopic surgery. Conclusion: Conservative treatment with antibiotics is the optimal treatment of choice for RCD and shows no increase in complications.

Simulated Annealing Approach with an Exhaustive Greedy Search for the Optimal Machining Region Decomposition in CNC Roughing Tool Path Generation

김태정 한국정밀공학회 2015 International Journal of Precision Engineering and Vol. No.

For machining various parts, it is important to generate efficient tool paths for productivity. At the stage of roughing, the workspaceis sliced and the paths are generated outside the part in each sliced plane. One of important decision variables in planar tool pathgeneration is the direction in which paths are aligned. This paper is about decomposing the machining region and deciding the pathdirection in each subregion so that machining time can be reduced. The machining region is decomposed into discretized meshes andthe path planning problem is formulated as a combinatorial optimization problem. The formulated problem is solved by the simulatedannealing technique. To speed up the overall optimization procedure, the annealing procedure is rather prematurely terminated anda clearing algorithm is applied to remove small subregions. This is needed since the cost function of this problem has many ‘flat’areas and provides ‘narrow’ passages to its optimum.

A Case of Thyrotoxic Myopathy with Extreme Type 2 Fiber Predominance

김태정,이한성,신제영,김동건,김성민,성정준,이광우 한국뇌신경과학회 2013 Experimental Neurobiology Vol.22 No.3

In hyperthyroidism, many patients had neuromuscular symptoms and clinical weakness correlated with free thyroxine (T4) concentrations. The common clinical symptoms of chronic thyrotoxic myopathy were characterized by progressive weakness in proximal muscles and atrophy. A 55-year old woman was visited our hospital with two years of progressive weakness of both legs. Physical examination showed diffuse enlargement of the thyroid gland, muscle atrophy and tachycardia. Motor examination showed proximal weakness in both legs. Serum creatine phosphokinase was normal and electromyography showed a myopathic pattern. Serum thyroxine (T4) was greatly increased and serum thyroid stimulating hormone was very low. Muscle biopsy showed mild atrophic change and type 2 fiber predominance. The patient’s symptoms were improved during treatment with methimazole. Herein we report a case of thyrotoxic myopathy with extreme type 2 fiber predominance histologically.