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任哲雄,金斗焌,白榮植,韓相賢 慶熙大學校 1989 論文集 Vol.18 No.-
A new reinforcement system, the Geolog, is developed which can be used as the reinforcements in the reinforced earth method. The Geolog consists of the epoxy coated steel bar with the reinforced concrete logs. The main advantages of the Geolog are as follows: (1) It can expect the passive earth resistance in addition to the friction, which is the only source of the conventional reinforcements. (2) The length and diameter of the Geolog can be easily adjusted in accordance with the field conditions. (3) It can be easily manufactured in this country without the sophisticated materials and as the consequence it is economical in comparison with other imported reinforcements.
( Hyun-jin Kim ),( Jeong-hun Shin ),( Yonggu Lee ),( Ju Han Kim ),( Sun Ho Hwang ),( Woo Shik Kim ),( Sungha Park ),( Sang Jae Rhee ),( Eun Mi Lee ),( Sang Hyun Ihm ),( Wook Bum Pyun ),( Jinho Shin ) 대한내과학회 2021 The Korean Journal of Internal Medicine Vol.36 No.5
Background/Aims: The clinical characteristics of patients with masked uncontrolled hypertension (MUCH) have been poorly defined, and few studies have investigated the clinical predictors of MUCH. We investigated the demographic, clinical, and blood pressure (BP) characteristics of patients with MUCH and pro-posed a prediction model for MUCH in patients with hypertension. Methods: We analyzed 1,986 subjects who were enrolled in the Korean Ambulatory Blood Pressure Monitoring (Kor-ABP) Registry and taking antihypertensive drugs, and classified them into the controlled hypertension (n = 465) and MUCH (n = 389) groups. MUCH was defined as the presence of a 24-hour ambulatory mean systolic BP ≥ 130 mmHg and/or diastolic BP ≥ 80 mmHg in patients treated with antihypertensive drugs, having normal office BP. Results: Patients in the MUCH group had significantly worse metabolic profiles and higher office BP, and took significantly fewer antihypertensive drugs com-pared to those in the controlled hypertension group. Multivariate logistic regression analyses identified high office systolic BP and diastolic BP, prior stroke, dyslipidemia, left ventricular hypertrophy (LVH, ≥ 116 g/㎡ for men, and ≥ 96 g/㎡ for women), high heart rate (≥ 75 beats/min), and single antihypertensive drug use as independent predictors of MUCH. A prediction model using these predictors showed a high diagnostic accuracy (C-index of 0.839) and goodness-of-fit for the presence of MUCH. Conclusions: MUCH is associated with a high-normal increase in office BP and underuse of antihypertensive drugs, as well as dyslipidemia, prior stroke, and LVH, which could underscore achieving optimal BP control. The proposed model accurately predicts MUCH in patients with controlled office BP.
Sang-Hyun Ihm,Kwang-il Kim,Kyung Jin Lee,Jong Won Won,Jin Oh Na,Seung-Woon Rha,Hack-Lyoung Kim,Sang-Hyun Kim,Jinho Shin 대한심장학회 2022 Korean Circulation Journal Vol.52 No.1
In primary prevention for cardiovascular diseases, there are significant barriers to adherence including freedom from symptoms, long latency for therapeutic benefits, life-long duration of treatment, and need for combined lifestyle changes. However, to implement more systematic approaches, the focus on adherence improvement needs to be shifted away from patient factors to the effects of the treatment team and healthcare system. In addition to conventional educational approaches, more patient-oriented approaches such as patient-centered clinical communication skills, counseling using motivational strategies, decision-making by patient empowerment, and a multi-disciplinary team approach should be developed and implemented. Patients should be involved in a program of self-monitoring, self-management, and active counseling. Because most effective interventions on adherence improvement demand greater resources, the health care system and educational or training system of physicians and healthcare staff need to be supported for systematic improvement.
Baek Jang-Hyun,Kim Byung Moon,Suh Sang Hyun,Jeon Hong-Jun,Ihm Eun Hyun,Park Hyungjong,Kim Chang-Hyun,Cha Sang-Hoon,Choi Chi-Hoon,Yi Kyung Sik,Kim Jun-Hwee,Suh Sangil,Kim Byungjun,Chang Yoonkyung,Kim S 대한영상의학회 2023 Korean Journal of Radiology Vol.24 No.2
Objective: We aimed to evaluate the efficacy of EmboTrap II in terms of first-pass recanalization and to determine whether it could yield favorable outcomes. Materials and Methods: In this multicenter, prospective study, we consecutively enrolled patients who underwent mechanical thrombectomy using EmboTrap II as a front-line device. The primary outcome was the first pass effect (FPE) rate defined by modified Thrombolysis In Cerebral Infarction (mTICI) grade 2c or 3 by the first pass of EmboTrap II. In addition, modified FPE (mFPE; mTICI grade 2b–3 by the first pass of EmboTrap II), successful recanalization (final mTICI grade 2b–3), and clinical outcomes were assessed. We also analyzed the effect of FPE on a modified Rankin Scale (mRS) score of 0–2 at 3 months. Results: Two hundred-ten patients (mean age ± standard deviation, 73.3 ± 11.4 years; male, 55.7%) were included. Ninetynine patients (47.1%) had FPE, and mFPE was achieved in 150 (71.4%) patients. Successful recanalization was achieved in 191 (91.0%) patients. Among them, 164 (85.9%) patients underwent successful recanalization by exclusively using EmboTrap II. The time from groin puncture to FPE was 25.0 minutes (interquartile range, 17.0–35.0 minutes). Procedure-related complications were observed in seven (3.3%) patients. Symptomatic intracranial hemorrhage developed in 14 (6.7%) patients. One hundred twenty-three (58.9% of 209 completely followed) patients had an mRS score of 0–2. Sixteen (7.7% of 209) patients died during the follow-up period. Patients who had successful recanalization with FPE were four times more likely to have an mRS score of 0–2 than those who had successful recanalization without FPE (adjusted odds ratio, 4.13; 95% confidence interval, 1.59–10.8; p = 0.004). Conclusion: Mechanical thrombectomy using the front-line EmboTrap II is effective and safe. In particular, FPE rates were high. Achieving FPE was important for an mRS score of 0–2, even in patients with successful recanalization.
혈액 투석 환자에서 포도당 희석법과 초음파 희석법을 이용한 혈관 통로의 혈류 속도 비교
하상진 ( Sang Jin Ha ),이윤정 ( Yoon Jung Lee ),조병현 ( Byung Hyun Cho ),정경환 ( Kyung Hwan Jung ),문주영 ( Joo Yung Moon ),이상호 ( Sang Ho Lee ),이태원 ( Tae Won Lee ),임천규 ( Chun Gyoo Ihm ) 대한신장학회 2007 Kidney Research and Clinical Practice Vol.26 No.4
Purpose : Vascular access flow (Qa) measurements are important in the surveillance protocol of hemodialysis vascular access stenosis. The glucose pump technique (GPT) is a technique for Qa measurement based on the dilution technique of a constant glucose infusion that was introduced in 1995. The aim of this study is to verify the clinical efficacy of GPT in vascular access surveillance compared with ultrasound dilution technique. Methods : In 31 chronic hemodialysis patients with a AV fistula, we compared Qa measurements performed with GPT in pre-dialysis and the ultrasound dilution technique (Transonic HD01, Transonic System Inc., Ithaca, NY) during hemodialysis. Results : Mean Qa was 1171 ml/min by GPT versus 1028 ml/min by HD01 (p=0.262). There was a strong linear correlation between the two methods (r=0.61; p<0.01). Ultrasound dilution technique HD01 yielded 6 cases of high risk Qa measurements and GPT yielded 4 cases of high risk Qa measurements. The diagnostic accuracy of GPT tested with the ROC curve was similar with ultrasound dilution technique HD01. The specificity and sensitivity was 80% and 66.7% according to Qa=600ml/min. But sensitivity was 83.3% according to Qa=750 ml/min. Conclusion : GPT offers the advantage of a simple and economic bedside procedure easily performed before dialysis and had a similar diagnostic accuracy and efficiency compared with ultrasound dilution technique HD01.
정현철(Hyun Chul Jung),김보석(Bo Suk Kim),송상헌(Sang Heun Song),김용범(Yong Bum Kim),신호진(Ho Jin Sin),이동원(Dong Won Lee),이우철(Woo Chul Lee),이수봉(Soo Bong Lee),곽임수(Ihm Soo Kwak),나하연(Ha Yeon Rha) 대한내과학회 1999 대한내과학회지 Vol.57 No.6
N/A Although the most of mushroom poisoning have a clinical menifestation of mild to moderate gastroenteritis, some mushroom may cause a serious illness; acute renal failure, hepatic necrosis. We experienced two cases of acute renal failure complicated by the poisoning of amanita virosa. Amanita virosa have a amatoxin. Amatoxin deteriorate hepatocytes, renal tubular cells, intestinal mucosal cells, and pancreas. They were transferred from local hospital for renal failure management. On admission, blood urea nitrogen and serum creatinine were highly elevated. We diagnosed acute renal failure complicated by poisoning of amanita virosa. In one case, renal function was further deteriorated compared with initial laboratory findings after creatinine was normalized at fifth day. Thus, we did a kidney biopsy. Light microscopy and EM showed interstitial inflammation and moderate tubular atrophy. They were recovered with the supportive management. We report two cases of mushroom poisoning-induced acute renal failure with review of literature. (Korean J Med 57:1053-1056, 1999)
정현철,이우철,김태오,이창원,류수형,이수봉,곽임수,나하연,송상헌,이현국 대한내과학회 1999 대한내과학회지 Vol.56 No.3
Acute focal bacterial nephritis is a part of urinary tract infection and a special form of acute pyelonephritis. In most cases, it is treated well by antimicrobial therapy without severe complications. Unusual cases have been reported that renal failure and or chronic granulomatous interstitial nephritis was combined with acute focal bacterial nephritis. We describe a case of acute reanl failure complicated by acute focal bacterial nephritis in 30-year-old male. He was admitted to this hospital owing to fever, chilling, right flank pain. On admission, BUN and creatinine were 29 mg/dl, 1.8 mg/dl. Urinalysis showed leukocyturia, & bactriuria. Urine culture revealed E. coli over us. Abdominal CT and ultrasonography was represented focal hypodense area and diffuse renal enlargement so we could diagnose acute focal bacterial nephritis. The patient was improved with antimicrobial therapy and hydration. In conclusion, this case shows the possibility that unusual complication such as acute reanl failure can be happensed in acute focal bacterial nephritis in continum with acute pyelonephritis