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권굉보,서보양,도병수,권우형 대한혈관외과학회 1993 Vascular Specialist International Vol.9 No.1
Current radical stripping technique for treating primary varicose vein has some disadvantages, in which the vein is no longer available for coronary and peripheral graft surgery. The valvuloplasty is a new, safe and advanced vascular surgical technique, and can also preserve great saphenous vein for further vascular bypass grafts. Two hemodynamic tests of Duplex scan and photophlethysmography were performed pre-and postoperatively in 12 among 15 patients who underwent valvuloplasty. The results were as follows: The male and female ratio was 5 to 7 and average age was 38.5 years with a range of 21-52 years. The clinical symptoms of calf pain(n=6) and tortuous veins(n=12) were all improved after valvuloplasty, but in l case, the heaviness of leg, venous engorgement and swelling were not improved. The reflux on Duplex scan was not found postoperatively except 1 case. The venous refilling times with PPG were 9.41±0.69 second preoperatively and 18.83±0.90 second postoperatively. In conclusion, treatment of the primary varicose vein using valvuloplasty is a new, and effective method that can preserve the valvular competence.
이삼범,도호석,도병수,이창현,심민철,권굉보 대한응급의학회 1995 대한응급의학회지 Vol.6 No.2
Study Objectives : To investigate and resolve the problems related with ventilator management in ED(emergency department). At present the ventilator is essential equipment of ED on university hospital and emergency center in Korea. Design : Retrospective consecutive case series. Setting : University teaching hospital Type of participants : All patients admitted and recieved ventilator management in ED of yeungnam university hospital from Jan. 1994 to jul. 1995. Methods and interventions : Charts of all patients were reviewed to determine the frequency, the types and causes of respiratory failure, the death rate, the mean duration of admission, the complications, and CPR(cardiopulmonary resuscitation) related with ventilator management in ED. We also identified the problems related with ventilator management by ED physicians and nurses through the answers to seven questions that suggested by us about ventilator management in ED. Measurements and main result : There were 34,751 admissions through ED during the study period. Of these 160 patients managed with ventilator in ED. The frequency of ventilator management in ED is increased at 1995(0.73%) that compared with 1994(0.32%). Non-trauma(113 cases) and hypoxic respiratory failure(83 cases) patients are more common than trauma(37 cases) and ventilatory failure Total CPR rate related with ventilator management are 25.3%. The mean duration of admission are 12.56±20.28 days, and the death rates are 45.3%. The incidence of complications occurred during ventilator management in ED are 37 cases. About seven questions suggested by us to 30 ED staffs(ED physician, nurses and paramedics), most frequent answer is the difficulty of keeping ventilator in ED because other department rent ventilator from ED and lost a part of ventilator. Conclusion : As the use of ventilator in ED is increased the emergency physician should be well trained for the indications, complications, setting mode and general problems of machine occurred during ventilator management in ED patients.
내시경 시술이 어려운 췌장 가성낭종 환자의 선행 경피배액술 치료 경험 3예
강지헌 ( Jee Heon Kang ),박도현 ( Do Hyun Park ),박상흠 ( Sang Heum Park ),윤형근 ( Hyung Geun Yoon ),이석호 ( Suck Ho Lee ),정일권 ( Il Kwun Chung ),김홍수 ( Hong Soo Kim ),김선주 ( Sun Joo Kim ) 대한소화기학회 2007 대한소화기학회지 Vol.49 No.2
Previously reported series suggested that the morbidity rate of internal surgical drainage procedure alone was about 15% and the mortality rate was less than 5% in patients with pancreatic pseudocysts. Recently, ultrasonography or CT-guided percutaneous drainage and endoscopic drainage techniques have created a new dimension of invasive, non-surgical treatment options for these patients. In the absence of prospective, randomized, controlled studies comparing outcomes of different pseudocysts drainage techniques, the decision as to which method should be employed often lies with local expertise and enthusiasm. In our experience, radiologic percutaneous drainage with subsequent transpapillary endosopic drainage had a high success rate and was relatively less difficult which resulted in rapid clinical improvement. We report three cases of pancreatic pseudocysts treated with percutaneous drainage as a first-line treatment followed by endoscopic treatment. (Korean J Gastroenterol 2007;49:100-105)
Hyuk Jin Moon,Jae Kook Yang,Dong Hyun In,Do Hyung Kwun,Hyun Ho Jo,Sung Hae Chang 순천향대학교 순천향의학연구소 2015 Journal of Soonchunhyang Medical Science Vol.21 No.2
Extrapulmonary manifestations of Mycoplasma pneumoniae infection are not uncommon and involvement of every organ system has been reported. However, association of inflammatory myositis with M. pneumoniae infection is rare. Here, we describe a patient who developed polymyositis associated with mycoplasma infection, who was treated successfully with glucocorticoid, intravenous immunoglobulin, and methotrexate.
Features of atherosclerosis in hemodialysis patients
( Kyong Ah Park ),( Hye Min Jo ),( Ji Soo Han ),( Min Jin Kim ),( Do Hyung Kwun ),( Moo Yong Park ),( Soo Jeong Choi ),( Jin Kuk Kim ),( Seung Duk Hwang ) 대한신장학회 2013 Kidney Research and Clinical Practice Vol.32 No.4
Background: Cardiovascular disease is the main cause of mortality in dialysis patients. Carotid intima-media thickness (CIMT) is used as a surrogate marker of early atherosclerosis. Atherosclerosis can cause vascular access failure. The purpose of this study was to define the clinical features of atherosclerosis in hemodialysis patients based on CIMT and to define the relationship between CIMT and access failure. Methods: In this cross-sectional study, the CIMT of 60 patients on hemodialysis was examined using B-mode Doppler ultrasonography between May 2012 and November 2012. Carotid atherosclerosis was defined as a CIMTZ0.9 mm or the incidence of atherosclerotic plaques. Results: The patients` mean age was 54.5710.6 years, and 60% of the patients were male. The CIMT was 0.8170.47 mm (range, 0.35-2.50 mm). The group with atherosclerosis was characterized by older age compared with those without atherosclerosis. Patients with atherosclerosis showed much shorter durations of access patency than their counterparts in the nonatherosclerosis group (hazard ratio, 2.822; 95% confidence interval, 1.113-7.156; P¼0.029). Moreover, being overweight was associated with a 2.47-fold (95% confidence interval, 1.101-5.548) increased primary access failure. Conclusion: This study shows that atherosclerosis is associated with older age. Patients who are overweight and have atherosclerosis may have shortened access patency.
볼트 체결 건설로봇의 구동 및 구동 지지부의 안전성 평가
이용훈(Yong Hoon Lee),이민규(Min Gyu Lee),임홍재(Hong Jae Yim),남형도(Hyung Do Nam),이용권(Yong Kwun Lee) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.10
In this paper a design methodology is presented for a construction robot which performs fastening bolts. Dynamic forces exerting on the robot structure are simulated using multi-body dynamic analysis when the robot moves along the three axial guides and rotates about Z axis. Finite element stress analysis is carried out to evaluate stress levels at the critical locations based on the dynamic loading conditions. Safety design can be validated to meet the design requirements.