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METRx™ 기구를 이용한 후방 경추부 추궁추간공 제거술의 예비 결과
박형천,윤승환,박종운,하윤,현동근,김은영,박현선,임대철 대한척추신경외과학회 2004 Neurospine Vol.1 No.1
Objectives: Posterior cervical microscopic laminoforaminotomy has been a preferred procedure for a posterolateral cervical disc or foraminal stenosis. However, neckpain from wide skin incision and muscle injury are some of disadvantages. The authors performed cervical microscopic laminoforaminotomy with METRx™ tubular dilator system and were compared the results with classical cervical microscopic foraminotomy. Methods: Six patients underwent posterior cervical microscopic laminoforaminotomy using the METRx™ during 6 months. We have selected 10 patients from our institution as a comparison group. Preoperative and postoperative pain score composed of the radicular and neck component was examined and disability score also recorded. Diameters and lengths of laminoforaminotomy on the postoperative CT also were compared with two methods Results: Postoperative pain scores to the radiculopathies were not different but postoperative pain scores to the neckpain on the follow up periods were significantly different. The average vertical and transverse diameters of the laminoforaminotomy defect on the postoperative CT scans were not different between two groups. Average hospital stay of the classical methods was 8.8±7.5 days comparison with 4.5±0.54days of new procedure. Conclusions: Posterior cervical microscopic laminoforaminotomy with METRx™ systems seems to provide similar decompression and clinical results as classical methods compared to classical methods and shows superior results for postoperative neckpain and hospital stays.
김용배,정대봉,조수형,조남수,박영봉,박상기,김춘호,양은석,문경래 大韓應急醫學會 1998 대한응급의학회지 Vol.9 No.3
Drowning is the second most common cause of accidental death of children in Korea. But the study of near-drowning is very rare in Korea. The purpose of our study is to determine the factors that may influence survival on the basis of submersion time, consciousness state upon admission to hospital, the kinds of water, laboratory findings and neurological outcomes. The survey was performed by a retrospective cohort study on 28 near-drowning victims of less than 15 years of age who were admitted to the emergency room in the Chosun University Hospital between May 1988 & May 1997. The results were as follows :1)Sex distribution was 22 males and 6 females. 2) Submersion time was <5 minutes in 9 cases, 5-9 minutes in 6 cases, 10-14 minutes in 5cases, 15-19 minutes in 3 cases, ≥20 minutes in 5cases. 3) Comatose patients upon arrival were 6/7 cases in the death group(86%) and 2/21 cases in the improved group(10%). They had unfavorable outcomes(P<0.05). 4) The first PH value was mean 7.02±0.12 in the death group and mean 7.31±0.13 in the improved group. There was a statistically significant difference between the death and the improved group(P<0.05) 5) The patients who gad increased blood glucose concentration were all 7 cases in the death group and 12/22 cases in the improved group(54%). The mean blood glucose concentration was mean 424.7235.6㎎/㎗ in the death group and mean 140.182.7㎎/㎗ in the improved group. There was a statistically significant difference between the death and the improved group(P<0.05). 6) The patients who had pulmonary edema upon arrival were all 7 cases in the death group and 1/21 cases in the improved group(46%). They had unfavorable outcomes(P<0.05). 7) The patients who had been submerged more than 15 minutes were all 7 cases in the death group and 6/21 cases in the improved group(5%). They had unfavorable outcomes(P<0.05). We conclude that pediatric victims of near-drowning can be assigned to high or low likelihoods of unfavorable our outcomes with the use of five variables ; comatose mentation upon arrival decreased initial blood pH, increased initial blood glucose concentration, pulmonary edema, and maximum submersion time estimated longer than fiften minutes. This prediction rule may be useful if it can be validated in another cohort.
스포츠 활동 참여가 생산직 근로자의 직무만족에 미치는 영향
노형철,정용준,윤오남,박형태,김승동 조선대학교 스포츠과학연구소 2000 스포츠科學硏究 Vol.11 No.-
The purpose of this study was to examine effects of Sport activity Participation of Production Laborers on Job Satisfaction. 380 subjects who had lived in five major cities answered questionnaires. The results were as follows. 1. In proportion of participants to non-participants in sport and leasure activities, the proportion of participants was higher. The most frequently replied answer to the question that how many years have you participated in sport and leasure activities was 3 years. The highest frequency in participation during week-days was 2 3 times. 2. In comparison of personal characteristics of the labores with proportion of participation in sport and leasure activities, sex and marital status were significantly related to participation in the activities. Proportion of continuous participation in sports and leasure activities was higher in males while proportion of participation in the acti vities was higher in females than in males. Age, formal schooling, monthly income and types of job were not significantly related to participation in sport and leasure activities. 3. In comparison of personal characteristics of the labores with job satisfaction, job satisfaction was higher in participants in sport and leasure activities than in non-participants.
Dae Hyoung Park,Jong Bouk Lee,Chun Ha Hwang,Jong Hyun Yoon,Jung Hyun Jo,Tae Wook Jeong,Woong Na 대한노인병학회 2019 Annals of geriatric medicine and research Vol.23 No.3
Background: Three-quarters of aged men experience lower urinary tract symptoms with benign prostate hypertrophy (BPH). Transurethral resection of the prostate (TURP) and holmium laser enucleation of the prostate (HoLEP) are standard endosurgical procedures in patients with BPH. Previous studies reported better results in patients undergoing HoLEP than in those undergoing TURP. Methods: This study compared the efficiency and safety of conventional morcellation and morcellation performed after X-incision during enucleation, a newly added technique in HoLEP. Overall, 174 patients were selected as the final study population. Results: The populations were stratified with respect to resected volumes. A t-test were used to compare the conventional morcellation and X-incision procedure groups. Results: In morcellation times and rates, there were significant differences in stratified resected mass (g) between the groups. Conclusion: We believe morcellation performed after X-incision procedure during enucleation is efficient and safe for older adults with BPH.
A Pyridazine-Based Fluorescent Probe Targeting A <i>β</i> Plaques in Alzheimer's Disease
Park, Yong Dae,Kim, Jeum-Jong,Lee, Sungbeom,Park, Chul-Hong,Bai, Hyoung-Woo,Lee, Seung Sik Hindawi 2018 Journal of analytical methods in chemistry Vol.2018 No.-
<P>Accumulation of <I>β</I>-amyloid (A<I>β</I>) plaques comprising A<I>β</I>40 and A<I>β</I>42 in the brain is the most significant factor in the pathogenesis of Alzheimer's disease (AD). Thus, the detection of A<I>β</I> plaques has increasingly attracted interest in the context of AD diagnosis. In the present study, a fluorescent pyridazine-based dye that can detect and image A<I>β</I> plaques was designed and synthesized, and its optical properties in the presence of A<I>β</I> aggregates were evaluated. An approximately 34-fold increase in emission intensity was exhibited by the fluorescent probe after binding with A<I>β</I> aggregates, for which it showed high affinity (<I>K</I><SUB><I>D</I></SUB> = 0.35 <I>µ</I>M). Moreover, the reasonable hydrophobic properties of the probe (log <I>P</I> = 2.94) allow it to penetrate the blood brain barrier (BBB). In addition, the pyridazine-based probe was used in the histological costaining of transgenic mouse (APP/PS1) brain sections to validate the selective binding of the probe to A<I>β</I> plaques. The results suggest that the pyridazine-based compound has the potential to serve as a fluorescent probe for the diagnosis of AD.</P>
Park, Beom-Kyeong,Kim, Dae-Wi,Song, Rak-Hyun,Lee, Seung-Bok,Lim, Tak-Hyoung,Park, Seok-Joo,Park, Chong-Ook,Lee, Jong-Won Elsevier 2015 Journal of Power Sources Vol.300 No.-
<P><B>Abstract</B></P> <P>A segmented-in series (SIS) SOFC consists of segmented unit cells connected in electrical series and shows improved stack efficiency over conventional SOFCs. In this design, a thin interconnect film provides both electrical contact and sealing between the anode of one cell and the cathode of the next; thus, it should have high conductivity and chemical/structural stability in both reducing and oxidizing atmospheres as well as impermeability to gases. Here, we report a dual-layer interconnect film for SIS–SOFCs comprising perovskite-type oxides, Sr<SUB>0.7</SUB>La<SUB>0.2</SUB>TiO<SUB>3</SUB> (exposed to a reducing atmosphere) and La<SUB>0.8</SUB>Sr<SUB>0.2</SUB>FeO<SUB>3</SUB> (exposed to an oxidizing atmosphere). The interconnect film is not only very dense but also highly conductive and stable under SOFC operating conditions; in particular, it shows an area-specific resistance of 19.6 mΩ cm<SUP>2</SUP> at 800 °C, which is much lower than the generally accepted limit for SOFCs. A flat-tubular SIS–SOFC fabricated using these interconnect films exhibits a power density as high as 340 mW cm<SUP>−2</SUP>, which proves the feasibility of the dual-layer interconnect design.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Dual-layer interconnect design for segmented-in-series solid oxide fuel cells. </LI> <LI> The interconnect comprises two perovskite oxides, Sr<SUB>0.7</SUB>La<SUB>0.2</SUB>TiO<SUB>3</SUB> and La<SUB>0.8</SUB>Sr<SUB>0.2</SUB>FeO<SUB>3</SUB>. </LI> <LI> The interconnect exhibits low resistance and high stability in a dual atmosphere. </LI> <LI> The fuel cell with the interconnect films shows a power density of 340 mW cm<SUP>−2</SUP>. </LI> </UL> </P>