• Clinical and Experimental Reproductive Medicine
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• 제27권1호
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• pp.59-65
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• 2000

Objective: The purpose of this study was to determine the important factors affecting survival and pregnancy rate in frozen-thawed embryo transfer cycles. Methods: we performed retrospective analysis in 738 cycles of frozen-thawed embryo transfers, in relation to the insemination methods, the freezing stage of embryo, patient's age, infertility factors and the origin of injected sperm in ICSI cycles. After conventional IVF or ICSI, the supernumerary PN stage zygotes or multicellular embryos were cryopreserved by slow freezing protocol with 1,2-propanediol (PROH) as a cryoprotectant. Results: The survival rates of thawed embryos were 69.3% (1585/2287) in conventional IVF group and 71.7% (1645/2295) in ICSI group. After frozen-thawed embryo transfers, 27.0% (92/341) and 32.0% (109/341) of pregnancy rates were achieved in conventional IVF and ICSI group, respectively. There were no significant difference in the survival and pregnancy rates according to the insemination methods, the freezing stage and patient's age. However, the pregnancy rate (36.2%) of male factor infertility was significantly higher than the tubal (27.2%) and other female factor infertility (22.9%). In ICSI group, the origin of injected sperm did not affect the outcome of frozen-thawed embryo transfer cycles. Conclusion: The present study demonstrates that acceptable clinical outcomes can be achieved after the transfer of frozen-thawed embryos regardless of the stage of embryos for freezing, the patient's age and the origin of injected sperm.

• Clinical and Experimental Reproductive Medicine
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• 제36권4호
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• pp.249-254
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• 2009

목 적: 고식적 체외수정시술과 세포질내정자주입법을 사용하여 체외성숙 난자를 수정시키고 수정률과 배발달율을 비교하고자 하였다. 연구방법: 2007년 1월부터 2008년 8월까지 난소과자극과 체외수정시술을 받은 59명의 여성에서 135개의 배아소포 단계의 미성숙난자만을 얻어 75 mIU/mL rFSH, 0.5 IU/mL rhCG, 10 ng/mL rEGF가 포함된 체외성숙용 배양액에서 최대 48시간까지 배양하였다. 체외성숙된 난자는 고식적 체외수정방법 (n=41) 또는 세포질내정자주입법 (n=94)을 이용하여 수정시켰으며 이후 배발달율을 관찰하였다. 결 과: 고식적 체외수정군과 세포질내정자주입군에서 체외성숙률은 각각 51.2%와 59.6%였고, 수정률은 각각 71.4%와 80.4%로 두 군간에 통계적으로 유의한 차이는 없었다. 배발달율도 두 군에서 비슷하게 관찰되었다. 결 론: 난소과자극을 통해 얻은 미성숙난자는 고식적 체외수정법을 사용하더라도 세포질내정자주입법과 동등한 수정률과 배발달율을 보임을 확인하였다.

• Journal of Yeungnam Medical Science
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• 제6권2호
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• pp.39-46
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• 1989

고빈도환기법시에 생길 수 있는 기관 및 기관지의 손상의 정도를 알아 보고자 저자들은 13마리의 고양이를 대상으로 CMV와 HFOV을 각각 6시간동안 사용후 폐의 조직 병리소견을 비교하여 다음과 같은 결과를 얻었다. 1) CMV와 HFOV 사용군에서 기관 및 기관지 손상의 정도의 차이에는 통계적으로는 유의한 차이가 없었다. 2) 상피 세포내 점액의 소실은 CMV군에서 다소 더 심하였다. 3) 폐실질병변으로 폐기종은 CMV군에서 더 심하였다. 이상의 결과로 건강한 고양이에서 비교적 짧은 기간동안에 사용한 CMV와 HFOV군에서 기관 및 손상의 차이는 저명하지 않았으나, CMV군에서 다소 더 세포기능의 장애가 초래되었을 것으로 생각되며 또한 폐압손상도 더 받았을 것으로 추측된다.

• 대한예방한의학회지
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• 제21권3호
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• pp.75-85
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• 2017

Objectives : The new health technology assessment (nHTA) involves evaluating the safety and efficacy of the new health technology under the Medical Services Act by the New Health Technology Assessment Project Division from 2007. The purpose of this study is to understand the status of applications and recent trends of the results, and suggest strategies for the development of new health technologies in Korean Medicine. Methods : We investigated and analyzed the results of evaluation of new health technology of whole conventional medical and the list of new health technologies in Korean Medicine provided by the New Health Technology Assessment Project Division from 2007 to 2016. Results : The number of applications for new health technology of Korean medicine was low as 41 items in the whole number of 2,013 items. The evaluation method of new health technologies in both, the whole medical and Korean medicine fields was the same, but the tendency in results was very different. Most of the new health technology items in Korean medicine were classified as existing technology (20 items), early stage technology (7 items), and Only 2 items were evaluated as research stage technology. Conclusions : In order to develop new health technology in the Korean medical field, we have made suggestions about the health technology assessment systems, R&D infrastructures, and corporation with conventional medicines.

• 대한한의학회지
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• 제42권4호
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• pp.61-74
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• 2021

Objectives: This study aimed to analyse: 1) the clinical effectiveness and safety of traditional Korean Medicine (TKM) and frequency of TKM therapies used and their relationship with conventional treatments. Methods: This prospective observational study enrolled children with cerebral palsy (CP) aged 6-78 months (n=126). The children who used herbal medication for >30 days or acupuncture treatment >12 sessions within 6 months were defined as the integrated rehabilitation (IR) group; the remaining participants were included in the conventional rehabilitation (CR) group. Results: Changes in the Gross Motor Function Measure-66 (GMFM-66) were greater in the IR group (6.4±6.1) than in the CR group (4.6±5.8). The reduction in the number of other health problems was greater in the IR group than in the CR group. The GMFM-66 improvement was greatest in gross motor function classification system level 1. There was no between-group difference in the frequency of rehabilitation therapy (10.9±6.6 and 12.0±9.9 in the IR and CR groups, respectively). Conclusion: TKM may offer additional benefits in terms of the GMFM-66 score and other health problems. However, there is a need for further randomized controlled trials involving a restricted CP type and a controlled treatment type and intensity to confirm these findings.

• IMMUNE NETWORK
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• 제4권3호
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• pp.155-160
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• 2004

Background: B-1 cells differ from conventional B-2 cells both phenotypically and functionally. The aim of this study was to investigate the difference between peritoneal B-1 cells and splenic B-2 cells in proliferation. Methods: We obtained sorted B-1 cells from peritoneal fluid and B-2 cells from spleens of mice. During the culture of these cells, immunoglobulin secreted into the culture supernatants was evaluated by enzymelinked immunosorbent assay. Entering of S phase in response to LPS-stimuli was measured by proliferative assay. Results: Spontaneous Immunoglobulin M production occurred in peritoneal B-1 cells but not in splenic B-2 cells. LPS stimulated peritoneal B-1 cells secreted IgM at day 1, but splenic B-2 cells at day 2. In thymidine incorporation, peritoneal B-1 cells entered actively S phase after 24hours LPS-stimulation but splenic B-2 cells entered actively S phase after 48 hours. Conclusion: IgM secretion and S phase entering occurred early in peritoneal B-1 cells compared to splenic B-2 cells.

• The Korean Journal of Pain
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• 제13권1호
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• pp.105-110
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• 2000

Central neuropathic pain may occur in 10~20% of the patients after spinal cord injury. The central pain syndrome include spontaneous continuing and intermittent pain as well as evoked pain. The pain is evoked by non-noxious stimulation of the region (allodynia) and repeated stimulation (wind-up phenomenon). Four patients were referred suffering from severe pain, allodynia and hyperaesthesia after spinal cord injury. They had received conventional treatment with non-steroidal anti-inflammatory drugs, steroid, anticonvulsant, antidepressant and rehabilitation which failed to provide pain relief. We administered combination of low doses of morphine and ketamine (10 mg) through the epidural catheter with other conventional therapy. Satisfactory pain relief was achieved in each patient. The reduction of pain was not associated with severe side effects. The most bothersome side effect of ketamine was dizziness in one patient, only caused by bolus injection (ketamine 10 mg with normal saline 10 ml). This suggests synergy from this combination that provides an alternative treatment for central pain.

• 한국의학물리학회지:의학물리
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• 제29권2호
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• pp.73-80
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• 2018

Accelerated partial breast irradiation (APBI) is a new treatment delivery technique that decreases overall treatment time by using higher fractional doses than conventional fractionation. Here, a quantitative analysis study of CyberKnife-based APBI was performed on 10 patients with left-sided breast cancer who had already finished conventional treatment at the Inha University Hospital. Dosimetric parameters for four kinds of treatment plans (3D-CRT, IMRT, VMAT, and CyberKnife) were analyzed and compared with constraints in the NSABP B39/RTOG 0413 protocol and a published CyberKnife-based APBI study. For the 10 patients recruited in this study, all the dosimetric parameters, including target coverage and doses to normal structures, met the NSABP B39/RTOG 0413 protocol. Compared with other treatment plans, a more conformal dose to the target and better dose sparing of critical structures were observed in CyberKnife plans. Accelerated partial breast irradiation via CyberKnife is a suitable treatment delivery technique for partial breast irradiation and offers improvements over external beam APBI techniques.

• Investigative Magnetic Resonance Imaging
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• 제21권1호
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• pp.43-50
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• 2017

Chronic expanding organizing hematoma (CEH) occasionally mimics a soft tissue tumor on MRI, which becomes more problematic in patients with a history of surgical resection for musculoskeletal malignancy. Herein, we present a case of CEH which we were able to differentiate from recurrent tumor through MRI follow-up, including diffusion-weighted imaging (DWI) and dynamic contrast enhanced (DCE) imaging. A 66-year-old male visited our institution under suspicion of recurrent leiomyosarcoma of the thigh, 19 months after surgery and radiation therapy. Due to inconclusive results, three US-guided biopsies and 6 MRI examinations were performed over 2 years. In the end, we could diagnose a CEH using conventional and functional MRI techniques, and it was histopathologically confirmed after surgical resection. A CEH may occur remotely after an initiating event, and it may persist and expand over several years. Functional MR sequences, in addition to conventional sequences, are helpful in differentiating CEH from malignant neoplasms.

• 대한수의학회지
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• 제60권3호
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• pp.139-144
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• 2020

Ten cadavers were studied to compare the accessibility of cervical vertebral canal with conventional standard ventral slot and modified slanted ventral slot. One group performed standard ventral slot procedures at the C3-4, C5-6. The other group performed modified slanted ventral slot with inverted cone technique procedures at the C3-4, C5-6 computed tomography was performed before and after surgery. The accessibility of cervical vertebral canal with conventional standard ventral slot and modified slanted ventral slot using computed tomography in C3-4 and C5-6 intervertebral space was compared. Although smaller ostectomy was performed in the modified slanted ventral slot, some lesions were more accessible but limitations were obvious in C3-4 and C5-6 intervertebral disk space. After the disc material has been identified through accurate preoperative diagnostic imaging, less morbidity and complications can be expected if the appropriate surgical method is selected based on the lesion of compression.