• 한국축산식품학회지
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• 제27권2호
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• pp.190-196
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• 2007

본 실험은 압력 수준에 따른 PAF이 돈육의 이화학적 특성에 미치는 효과를 규명하고자 시도되었다. 비록 가압 수준기 증가에 따른 상전이 온도와 냉각온도간의 차이 감소에 기인하여 고압 하에서의 잠열 감소에 의한 동결 속도 증가의 효과는 얻을 수 없었지만, 육의 PAE 처리는 가압처리에서와 같이 보수력 및 육즙 손실을 대기압 동결 처리보다 더욱 현저하게 줄일 수 있었다. 그러나 지나친 가압은 육 단백질간의 aggregation 및 심한 변성에 기인하여 육의 연도를 저하시키는 결과를 초래하였고, 또한 소비자의 구매와 직접적으로 관련된 색도에 악영향을 끼친 것으로 판단되었다. 그러나 상대적으로 낮은 압력 범위 조건에서의 PAF 처리는 동결 시 고압 처리에 의한 육색 저하를 최소화 할 수 있었고, 전단력 측면에서도 대기압 동결처리와 유의적인 차이를 보이지 않을 뿐만 아니라 보수력을 향상시킴으로써 동결처리보다 더 큰 잠재적인 이점을 보였고, 이 부분에 대한 더 많은 연구가 필요할 것으로 판단된다.

• Journal of Chest Surgery
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• 제29권7호
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• pp.728-733
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• 1996

1922년 Jacobaeus가 흥강경을 처음으로 기술한 이래, 비디오흥강경수술은 많은 흉부 질환에 적용되어 왔다. 본원에서는 1994년 6월부터 1995년 7월까지 원발성 자연기흥을 가진 35명의 환자를 실험군으로 하여 비디오 흥강경수술을 시행하였고, 같은 수의 자연기흥 환자를 대조군으로 하여 정중액와 개흥술로 폐기포 절제술을 시행하였다. 저자들은 양군으로 부터 얻은 임상결과를 다음과 같이 비교하였다. 1. 성별분포는 실험군에서 남자 28명, 여자 7명이고, 대조군에서는 남자 30명, 여자 5명으로 양군에서 남 자가 대부분이었다. 연령분포는 실험군에서 최소 17세, 최고 69세, 평균 28.5$\pm$ 12.6세이고, 대조군에 서는 최소 15세, 최고 39세, 평균 23.9$\pm$6.3세를 보였다. 2. 수술시간은 실험군에서 평균 98.8 $\pm$39.3분이고 대조군에서 103.6$\pm$32.6분 이 었다. 3. 술후 흥관 삽관기간은 실험군이 평균 2.60$\pm$0.98일, 대조군이 평균 4.80$\pm$2.08일(P<0.01)이고, 술후 재원기간은 실험군이 최단 2일 최장 6일 평균 4.17$\pm$1.22일, 대조군이 최단 )일 최장 15일 평균 6.69 $\pm$ 2.52일(P<0.01)로 술후 흥관 상관기간 및 재원기간이 실험군에서 유의하게 짧았다. 4. 술 \ulcorner진통제 투여는 수술일 실험군이 1.57$\pm$0.74회1명, 대조군이 2.23 $\pm$0.60회1명이고(P<0.01), 술후 1 일째에는 실험군이 1.97 $\pm$0.70회1명, 대조군이 2.60$\pm$0.67회1명(P<0.01), 술후 2일째에는 실험군이 1 00$\pm$0.68회1명, 대조군이 2.17$\pm$0.76회1명(P<0.01)으로 실험군에서 현저한 감소를 보였고, 술후 재원 기간 중 평균 투여기간과 투여량에서도 실험군에서 각각 2.48$\pm$1.01일1명, 4.88 $\pm$ 3.70회1명이고 대조 군에서는 각각 3.70$\pm$ 1.40일1명, 8.94$\pm$4.21회1명으로 실험군에서 유의한 감소를 보였다(P<0.01, p< 0.01). 저자들은 위의 결과로, 비디오 흥강경수술을 받은 군이 정중액와 개흥으로 폐기포 절제술을 시행받은 군보다 수술후 회복이 빠르다는 것을 알 수 있었다.

• 한국산학기술학회논문지
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• 제17권10호
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• pp.562-568
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• 2016

본 연구의 목적은 가상현실과 로봇보조재활치료를 이용하여 뇌졸중 후 푸셔 증후군에 대한 치료적인 효과를 조사하고자 하기 위함이다. 총 10명의 뇌졸중 후 푸셔 증후군을 보이는 환자가 모집되었다. 환자는 각각 5 명씩 로봇보조재활치료와 대조군으로 배정되었다. 실험군은 로봇보조재활치료와 일반적인 재활치료를 함께 받았으며, 대조군은 하루 2회 일반적인 재활치료를 받았다. 중재 시간은 30분간 진행되었으며, 주 5회, 4주간 시행하였다. 치료 전후 변화는 Scale for contraversive pushing (SCP), Berg balance scale (BBS), falling index (FI), Timed up and go test (TUG)을 이용하여 측정하였다. 4 주간의 중재 치료 후 로봇보조재활치료 군에서 SCP (p=0.046), BBS (p=0.046), FI (p=0.038), TUG (p=0.038)은 대조군에 비하여 유의하게 향상되었다. 또한 SCP와 BBS (p=0.024), FI (p=0.039), TUG (p=0.030)는 유의한 상관관계가 관찰되었다. 결과적으로 가상현실을 이용한 로봇보조재활치료는 일반적인 재활치료에 비하여 뇌졸중 후 푸셔 증후군을 회복하는데 더 도움이 되었으며, 푸셔 증후군의 회복은 균형과 보행기능의 향상과 관련이 있었다.

• Clinics in Shoulder and Elbow
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• 제22권1호
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• pp.9-15
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• 2019

Background: Latissimus dorsi (LD) tendon transfer is used as a treatment option for massive irreparable posterosuperior rotator cuff tears, and recently, an arthroscopic-assisted technique was introduced. This study was undertaken to evaluate the clinical and radiological outcomes of arthroscopic-assisted LD tendon transfer for the management of irreparable rotator cuff tears in active middle-aged patients. Methods: The records of five patients (two males) with irreparable tears involving the supraspinatus and infraspinatus tendons managed by arthroscopic-assisted LD tendon transfer were retrospectively reviewed. Clinical outcomes were assessed using the visual analogue scale (VAS) pain scale, American Shoulder and Elbow Surgeon's (ASES) scores, the University of California Los Angeles (UCLA) scale, and ranges of motion. Postoperative integrities of transferred tendon were evaluated by magnetic resonance imaging in 4 patients and by ultrasound in one. Results: Mean patient age was 55 years (range, 48-61 years), and mean follow-up period was 20 months (range, 12.0-27.2 months). Mean VAS score significantly improved from $6.6{\pm}2.6$ preoperatively to $1.8{\pm}2.5$ postoperatively (p=0.009), mean ASES score increased from $67.6{\pm}9.2$ to $84.6{\pm}15.1$, and mean UCLA score from $18.0{\pm}1.4$ to $28.8{\pm}8.5$ (all p<0.001). Postoperative imaging of the transferred LD tendon showed intact repair in 4 patients. The remaining patient experienced LD transfer rupture and a poor outcome. Conclusions: Arthroscopic-assisted LD tendon transfer improved shoulder pain and function in patients with massive, irreparable rotator cuff tears, and may be an option for this condition, especially in physically active patients.

• Journal of Chest Surgery
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• 제50권4호
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• pp.275-280
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• 2017

Background: Video-assisted thoracoscopic surgery (VATS) anatomic lung resections are gradually becoming the standard surgical approach in early-stage non-small cell lung cancer (NSCLC). The technique is being applied in cases of larger tumors depending on the experience of the surgical team. The objective of this study was to compare early surgical and survival outcomes in patients undergoing anatomic pulmonary resections using VATS and thoracotomy techniques for clinical T2 NSCLC during the adaptation period of the surgical team to the VATS approach. Methods: The data of all patients who underwent anatomic pulmonary resection for NSCLC using VATS and open techniques since April 2012 were recorded to create a prospective lung cancer database. Clinical T2 NSCLC patients who underwent VATS anatomic lung resection were identified and compared with cT2 patients who underwent open resection. Results: Between April 2012 and August 2014, 269 anatomical resections for NSCLC were performed (80 VATS and 189 thoracotomy). Thirty-four VATS patients who had clinical T2 disease were identified and stage-matched to thoracotomy patients. The average tumor diameter was comparable ($34.2{\pm}11.1{\times}29.8{\pm}10.1mm$ vs. $32.3{\pm}9.8{\times}32.5{\pm}12.2mm$, p=0.4). Major complications were higher in the thoracotomy group (n=0 vs. n=5, p=0.053). There was no 30-day mortality, and the 2-year survival rate was 91% for VATS and 82% for thoracotomy patients (p=0.4). Conclusion: VATS anatomic resections in clinical T2 NSCLC tumors are safe and have perioperative and pathologic outcomes similar to those of thoracotomy, while remaining within the learning curve.

• Mass Spectrometry Letters
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• 제9권2호
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• pp.56-60
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• 2018

In this study, matrix-assisted laser desorption/ionization (MALDI) was applied to the TEMPO-assisted FRIPS for the first time. We found that 3-HPA is the optimal matrix for the analysis of p-TEMPO-Bz-Sc-peptides, which gives minimal precursor fragmentations. MALDI-TOF/TOF experiments on p-TEMPO-Bz-Sc-peptides yielded mainly $[a_n+H]^+$, $[z_n+H]^+$, and $[y_n]^+-type$ products, indicating that radical-driven peptide fragmentation occurs in MALDI-TOF/TOF-MS.

• 소성∙가공
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• 제21권2호
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• pp.107-112
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• 2012

Gas-assisted injection molding(GAIM) produces parts with hollow internal sections. The technique offers benefits to powder injection molding(PIM), with lower material usage and reduced time for de-binding processes. In this study, the effects of processing parameters on gas penetration length of gas-assisted powder injection molding(GAPIM) were investigated for SUS316L stainless steel powder feedstock. Experiments were planned based on the Taguchi method, involving processing variables such as melt temperature, shot size, gas pressure, and gas delay time. The most significant parameters affecting gas penetration length were gas delay time and shot size, while the effects of melt temperature and gas pressure was relatively insignificant.

• The Journal of Korean Physical Therapy
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• 제25권4호
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• pp.195-203
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• 2013

Purpose: The purpose of this study was to determine the effect of early Robot-assisted training on gait ability, function and ADL in patients with stroke. Methods: 26 patients with stroke were recruited for this study. The subjects were randomly assigned to either the experimental group (EG) or the control group (CG), with 13 patients in each group. All subjects received a routine physical therapy. The robot-assisted training was for 30 min in the case of the EG subjects. The assessment tools of this study involved the gait ability, balance ability, function and ADL. The measurements were recorded before the intervention and after the intervention. Results: EG subjects and CG subjects, the variables measured after the intervention significantly differed from gait ability, balance ability, function and ADL without the FMA (p<0.05). The FMA was only effective experimental group after intervention. Also, there were significant differences in gait ability, balance ability, function and ADL without the FMA at post-test between the 2 groups (p<0.05). Conclusion: The findings indicate that early robot-assisted training exerts a positive effect on gait ability, balance ability, function and ADL in patients with stroke. This result indicates the possibility of application of the early Robot-assisted training to the management for stroke patients. Further studies are required to generalize the result for this study.

• Journal of Chest Surgery
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• 제50권3호
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• pp.190-196
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• 2017

Background: The feasibility of single-port video-assisted thoracic surgery (SPVATS) for primary lung cancer is not well understood. In this study, we compared SP and multi-port (MP) VATS for the surgical treatment of patients with primary lung cancer. Methods: Surgical treatment was performed in 181 patients with primary lung cancer at Inje University Haeundae Paik Hospital between June 2012 and December 2015. A propensity-matched analysis was used to compare the postoperative outcomes and to evaluate the comparative feasibility and safety of SPVATS and MPVATS. Results: There were 37 patients in the SPVATS group and 67 patients in the MPVATS group. Propensity matching produced 32 pairs. The operation time (210 minutes versus 200 minutes, p=0.11), volume of the estimated blood loss (170 mL versus 160 mL, p=0.19), duration of chest tube drainage (5 days versus 6 days, p=0.66), and length of hospital stay (9 days versus 10 days, p=0.89) were similar between the 2 groups. Conclusion: In our study, SPVATS for primary lung cancer was safe and feasible in well selected patients. A prospective, randomized study with a large group and long-term follow-up is necessary to evaluate the clinical feasibility and the advantages of SPVATS for primary lung cancer.

• Journal of Korean Neurosurgical Society
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• 제67권1호
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• pp.42-49
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• 2024

Objective : There is still controversy regarding whether neck remodeling stent affects the occurrence of silent embolic infarction (SEI) after aneurysm coiling. Thus, the aim of the present study is to investigate the incidence of SEI after stent-assisted coiling (SAC) using Neuroform Atlas Stent (NAS) and possible risk factors. This study also includes a comparison with simple coiling group during the same period to estimate the impact of NAS on the occurrence of SEI. Methods : This study included a total of 96 unruptured intracranial aneurysms in 96 patients treated with SAC using NAS. Correlations of demographic data, aneurysm characteristics, and angiographic parameters with properties of SEI were analyzed. The incidence and characteristics of SEI were investigated in 28 patients who underwent simple coiling during the same period, and the results were compared with the SAC group. Results : In the diffusion-weighted imaging obtained on the 1st day after SAC, a total of 106 SEI lesions were observed in 48 (50%) of 96 patients. Of these 48 patients, 38 (79.2%) had 1-3 lesions. Of 106 lesions, 74 (69.8%) had a diameter less than 3 mm. SEI occurred more frequently in older patients (≥60 years, p=0.013). The volume of SEI was found to be significantly increased in older age (≥60 years, p=0.032), hypertension (p=0.036), and aneurysm size ≥5 mm (p=0.047). The incidence and mean volume of SEI in the SAC group (n=96) were similar to those of the simple coiling group (n=28) during the same period. Conclusion : SEIs are common after NAS-assisted coiling. Their incidence in SAC was comparable to that in simple coiling. They occurred more frequently at an older age. Therefore, the use of NAS in the treatment of unruptured intracranial aneurysm does not seem to be associated with an increased risk of thromboembolic events if antiplatelet premedication has been performed well.