• 대한물리치료과학회지
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• 제26권2호
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• pp.51-60
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• 2019

Background: The purpose of this study was to investigate the effects of HBOT (hyperbaric oxygen therapy) on the pain, ROM (range of motion) and muscle fatigue recovery of DOMS (delayed onset muscle soreness). Design: Randomized Controlled Trial. Methods: Twenty-six subjects who are student in their 20s at a university participated in this study, these subjects were assigned into two groups, a control group (n=12) and an experiment group (n=14). The subjects in experimental group were intervened by HBOT (40 minutes, 1.3 ATA), while ones on control group weren't by any intervention after induced DOMS. Results: First, in the comparison of VAS (visual analog scale), there were significant variations with the period (p<0.001), interaction of period (p<0.05) and group (p<0.05). In the comparison of PPT (pressure pain threshold), there were significant variations with the period (p<0.001) and interaction of period (p<0.05). Second, in the comparison of ROM, there were significant variations with the period (p<0.001), interaction of period (p<0.001) and group (p<0.01). Third, in the comparison of CK (creatine kinase) and LDH (lactate dehydrogenase), there no signigicant variations with all measure variables. Conclusion: The above results indicated that HBOT were effective to decrease the pain and improve the ROM in DOMS. Also the statistical significant variations of blood factors of muscle fatigue were not found in this.

• 한국자연치유학회지
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• 제11권2호
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• pp.116-122
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• 2022

배경: 복식호흡 수련이 수면이나 혈중 산소농도에 미치는 연구는 아직도 미비하다. 목적: 본 연구는 50대 여성들에게 복식호흡 수련후에 혈중 산소 포화도에 미치는 영향과 맥박의 변이, 불면증 심각성 변화, 수면 전 각성의 변화, 한국판 수면에 대한 역기능적 신념 및 태도에 미치는 영향을 조사하는 것이었다. 방법: 대상자들에게 12주간 숨(호흡) 수련을 주 3회기 36회 호흡법을 통해 사전 및 사후 변화를 조사하였다. 결과: 호흡수련후 맥박 수의 변화에는 유의성이 없는 것으로 평가되었다. 산소포화도는 실험군에서는 호흡치유 사전에 93.60 SpO₂%, 호흡수련 후에는 96.5 SpO₂%로 증가하여 유의성이 있었다(p < .002). 불면증 심각성 척도와 수면에 대한 역기능적 신념은 호흡수련 하기 전보다 후에 감소치가 유의성이 있었다(p < .000). 결론: 대상자들에 대한 호흡수련이 불면증, 맥박과 산소포화도에 효과가 있어서 건강에 도움 되는 것으로 평가한다.

• Clinical and Experimental Pediatrics
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• 제54권9호
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• pp.359-362
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• 2011

There is a delicate balance between too little and too much supplemental oxygen exposure in premature infants. Since underuse and overuse of supplemental oxygen can harm premature infants, oxygen saturation levels must be monitored and kept at less than 95% to prevent reactive oxygen species-related diseases, such as retinopathy of prematurity and bronchopulmonary dysplasia. At the same time, desaturation below 80 to 85% must be avoided to prevent adverse consequences, such as cerebral palsy. It is still unclear what range of oxygen saturation is appropriate for premature infants; however, until the results of further studies are available, a reasonable target for pulse oxygen saturation ($SpO_2$) is 90 to 93% with an intermittent review of the correlation between $SpO_2$ and the partial pressure of arterial oxygen tension ($PaO_2$). Because optimal oxygenation depends on individuals at the bedside making ongoing adjustments, each unit must define an optimal target range and set alarm limits according to their own equipment or conditions. All staff must be aware of these values and adjust the concentration of supplemental oxygen frequently.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제26권5호
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• pp.455-461
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• 2000

Malignant tumors of the head and neck frequently require treatment with both radiotherapy and surgery. Reconstruction of the defect in previously irradiated field is a challenge to surgeon, who must produce both a functional and an esthetic result. Hyperbaric oxygen therapy(HBO) has been used in an attempt to reduce the deleterious effects of radiation. But the issue of whether prior irradiation and HBO of the recipient site of a free flap affects the result of reconstruction continues to generate controversy. So, the effects of irradiation and hypergbaric oxygen therapy on microvascular anastomosis was evaluated in an experimental study in femoral vessels of rats. The experimental groups were divided into 3 groups, contorol group, irradiation group, and irradiation and HBO group. Preoperative irradiation was delivered in the left groin field with single dose corresponding 2,000cGy and total 48 hours of HBO was given 100% oxygen at 2.4 atmosphere for 4 weeks. The femoral vessels of 60 rats were anastomosed after irradiation and HBO treatment. Three days, 1 week, 2 weeks and 4 weeks after surgery, the femoral vessels were evaluated for patency and histopathologic changes. There was no notable effect of irradiation on patency of femoral vessels in rats and the radiation effects were obvious on histological examination which showed the sloughing of the endothelial cells, subintimal hyperplasia and fibrosis on the media and adventitia of femoral arteries. The histologic changes of the femoral veins were mild and not typical. But the effects of hyperbaric oxygen therapy after irradiation was seen not marked difference in irradiation group.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제12권1호
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• pp.1-13
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• 1990

The main objectives of this study was to observe the effects of hyperbaric oxygen therapy on the healing processes of mandibular fracture of streptozotocin-induced diabetic rats. Author used 60 rats (Sprague-Dawley Strain) deviding into control(30) and experimental groups(30). Complete fracture was produced on the left mandibular body of 60rats, rendered hyperbaric oxygen therapy (2 hrs. daily at 2.5 atm.) on experimental group and observed effects of hyperbaric oxygen therapy by microscopically. The obtained results were as follows; 1. Infiltration of inflammatory cells was no significant differences between the control and experimental group until 3rd week, but experimental group showed decreasing tendency after 4th week. 2. Severe proliferation of fibroblasts showed rather rapider in experimental group, at 2nd week, while at 3rd week in control group. 3. Osteoclasts appeared at 1st week in experimental group while at 3rd week in control group, and experimental group showed early bone resorption pattern. 4. Osteoblasts appeared at 1st week in experimental group while at 3rd week in control group, and experimental group showed prominent osteoblastic activity. 5. Moderate proliferation of capillary blood vessels showed in initial stage of experimental group while mild proliferation at 1-2nd week in control group. 6. Formation of cartilaginous callus showed at 4th week in experimental group, while at 6th week in control group. 7. Formation of bony callus showed mildly at 5th week, and moderately at 6th week in experimental group, while no appearance in control group, but complete bony union was not observed even in experimental group throughout this experiment.

• 임상간호연구
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• 제19권1호
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• pp.1-19
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• 2013

Purpose: This study was conducted to develop standards to ensure nursing process-based care of oxygen therapy and airway suctioning and to develop a performance measurement tool to evaluate the care applied according to the standards, and finally to determine validity of the standards and the tool. Methods: The standards and the tool were reviewed by a panel of experts and refined based on the panel's suggestions. Validity of the standards and the tool were examined through surveying a total of 366 hospital nurses. Results: The mean validity scores of the performance measurement standards and the tool were 3.58 and 3.55, respectively, out of 4.00. So the performance measurement standards and the tool in this study were found to be acceptable in evaluating quality of nursing care provided at patient admission and discharge. Conclusion: This result indicates that the performance measurement standards and the tool developed in this study are valid instruments to monitor and improve quality of nursing care for oxygen therapy and airway suctioning.

• Journal of Periodontal and Implant Science
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• 제46권4호
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• pp.244-253
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• 2016

Purpose: The aim of this study was to characterize the healing in the grafted calvarial defects of rats after adjunctive hyperbaric oxygen therapy. Methods: Twenty-eight male Sprague-Dawley rats (body weight, 250-300 g) were randomly divided into two treatment groups: with hyperbaric oxygen therapy (HBO; n=14) and without HBO (NHBO; n=14). Each group was further subdivided according to the bone substitute applied: biphasic calcium phosphate (BCP; n=7) and surface-modified BCP (mBCP; n=7). The mBCP comprised BCP coated with Escherichia-coli-derived recombinant human bone morphogenetic protein-2 (ErhBMP-2) and epigallocatechin-3-gallate (EGCG). Two symmetrical circular defects (6-mm diameter) were created in the right and left parietal bones of each animal. One defect was assigned as a control defect and received no bone substitute, while the other defect was filled with either BCP or mBCP. The animals were allowed to heal for 4 weeks, during which those in the HBO group underwent 5 sessions of HBO. At 4 weeks, the animals were sacrificed, and the defects were harvested for histologic and histomorphometric analysis. Results: Well-maintained space was found in the grafted groups. Woven bone connected to and away from the defect margin was formed. More angiogenesis was found with HBO and EGCG/BMP-2 (P<0.05). None of the defects achieved complete defect closure. Increased new bone formation with HBO or EGCG/BMP-2 was evident in histologic evaluation, but it did not reach statistical significance in histometric analysis. A synergic effect between HBO and EGCG/BMP-2 was not found. Conclusions: Within the limitations of this study, the present findings indicate that adjunctive HBO and EGCG/BMP-2 could be beneficial for new bone formation in rat calvarial defects.

• 임상간호연구
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• 제26권1호
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• pp.47-58
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• 2020

Purpose: The aim of this study was to develop a simulation-based High Flow Nasal Cannula Oxygen Therapy training program based on NLN/ISF to identify the effect on knowledge, clinical performance, and educational satisfaction compared to a group who had traditional High Flow Nasal Cannula Oxygen Therapy training after applying it to clinical nurses. Methods: 31 experimental groups and 33 control groups were conducted from August 2019 to September 2019 for inexperienced nurses over 4 months to 5 years with no experience using high-flow oxygen therapy. Educational programs were developed in scenarios according to Airvo2 and Optiflow, such as facilitator, participant, educational condition, design, characteristics, and educational outcomes. The education application was conducted in advanced for knowledge and clinical performance ability after watching therapy video. Since then, a total of 90 minutes have been conducted for respiratory failure theory training, airvo2 and optiflow simulation training, and debriefing. After applying the education, the medical institution measured nurses' knowledge, clinical performance, and education satisfaction. Data were analyzed using descriptive statistics, with the SPSS/WIN 22.0 program. Results: Both knowledge and educational satisfaction were higher in the experimental group than in the control group (t=-14.09, p<.001), (t=-12.99, p<.001). The clinical performance for both use of Optiflow and Airvo2 were higher in the experimental group than in the control group (t=-11.39, p<.001), (t=-11.38, p<.001). Conclusion: Results showed that the simulation-based High Flow Nasal Cannula Oxygen Therapy training was effective with the experimental group having increased scores for every area of this study.

• Tuberculosis and Respiratory Diseases
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• 제58권2호
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• pp.160-166
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• 2005

연구배경 : 최근 국내에서도 만성폐질환을 가진 저산소증 환자에게 재택산소요법이 증가하고 있으나 그 실태는 잘 알려져 있지 않다. 이에 한 대학병원 호흡기내과에서 재택산소요법을 처방 받은 환자들의 실태를 알아보고자 하였다. 방 법 : 2000년 1월부터 2003년 8월까지 서울아산병원 호흡기내과에서 재택산소요법을 처방 받은 환자들을 대상으로 의무기록 검토와 설문조사를 시행하였다. 산소를 중단한 4명의 환자는 제외하였다. 결 과 : 총 86명의 환자가 산소요법을 처방받았고, 2000년 이후로 매년 빈도가 증가되는 추세였다.남/녀비는 52/34명, 평균연령은 61.3세였다. 환자들의 기저질환으로 만성폐쇄성폐질환 29명, 결핵파괴폐 18명, 기관지확장증 15명, 간질성폐질환 12명, 척추후측만증 7명 등으로 다양한 질환을 보였다. 산소 처방 당시 평균 53명의 폐기능 소견은 $FEV_1/FVC$ 비 $58.4{\pm}25.2%$, FVC $54.5{\pm}17.1$ (% pred.), $FEV_1$ $41.7{\pm}20.6$ (% pred.)로 측정되었다. 산소요법은 1.5 L/min에서 시작하여 평균 14.5시간 동안 사용하였다. 산소 처방 당시 동맥혈 산소농도는 77.7 mm Hg, 동맥혈 이산화탄소농도는 49.6 mm Hg 정도로 조절하였다. 전체 환자 중에서 가정간호사 방문이나 맥박산소측정기로 집에서 산소포화도를 모니터링 하는 경우는 16.5%에 불과하였고 대부분의 환자는 외래 방문시 시행하는 동맥혈가스분석이나 증상에 따라 산소량을 조절하였다. 재택산소치료를 하는 환자들의 3년 생존율은 56%였고 고탄산혈증을 가지는 환자에서 더 좋은 예후를 보였다. 결 론 : 재택산소치료는 다양한 폐질환 환자에게 시행되고 있고, 점차 빈도도 증가하고 있어 효율적인 관리 체계의 확립을 위한 보험제도의 개선이 필요할 것으로 사료된다.

• Tuberculosis and Respiratory Diseases
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• 제84권2호
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• pp.125-133
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• 2021

Background: The coronavirus disease (COVID-19) can manifest in a range of symptoms, including both asymptomatic systems which appear nearly non-existent to the patient, all the way to the development of acute respiratory distress syndrome (ARDS). Specifically, COVID-19-associated pneumonia develops into ARDS due to the rapid progression of hypoxia, and although arterial blood gas analysis can assist in halting this deterioration, the current environment provided by the COVID-19 pandemic, which has led to an overall lack of medical resources or equipment, has made it difficult to administer such tests in a widespread manner. As a result, this study was conducted in order to determine whether the levels of oxygen saturation (SpO₂) and the fraction of inhaled oxygen (FiO₂) (SF ratio) can also serve as predictors of ARDS and the patient's risk of mortality. Methods: This was a retrospective cohort study conducted from February 2020 to Mary 2020, with the study's subjects consisting of COVID-19 pneumonia patients who had reached a state of deterioration that required the use of oxygen therapy. Of the 100 COVID-19 pneumonia cases, we compared 59 pneumonia patients who required oxygen therapy, divided into ARDS and non-ARDS pneumonia patients who required oxygen, and then investigated the different factors which affected their mortality. Results: At the time of admission, the ratios of SpO₂, FiO₂, and SF for the ARDS group differed significantly from those of the non-ARDS pneumonia support group who required oxygen (p<0.001). With respect to the predicting of the occurrence of ARDS, the SF ratio on admission and the SF ratio at exacerbation had an area under the curve which measured to be around 85.7% and 88.8% (p<0.001). Multivariate Cox regression analysis identified that the SF ratio at exacerbation (hazard ratio [HR], 0.916; 95% confidence interval [CI], 0.846-0.991; p=0.029) and National Early Warning Score (NEWS) (HR, 1.277; 95% CI, 1.010-1.615; p=0.041) were significant predictors of mortality. Conclusion: The SF ratio on admission and the SF ratio at exacerbation were strong predictors of the occurrence of ARDS, and the SF ratio at exacerbation and NEWS held a significant effect on mortality.