• The Journal of Korean Physical Therapy
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• 제10권2호
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• pp.41-55
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• 1998

본 연구는 뇌졸중 환자들의 퇴원 후 1개월까지의 물리치료양상 및 기능변화와 이에 관련된 요인을 알아보기 위해 1998년 1월 1일부터 5월 31일까지 약 5개월 간 부산시, 대구시, 구미시 및 안동시 등에 소재하고 있는 1개 병원에서 물리치료를 시작한 뇌졸중환자 87명을 대상으로 물리치료를 시작한 시점, 1개월 후, 퇴원 시, 그리고 퇴원 후 1개월이 지난 시점까지 추적하여 기능변화를 평가하였다. 뇌졸중환자의 물리치료 시작시점의 BI점수는 26.32였고, PS점수는 11.34이었다. 물리치료 시작시점을 기준으로 할 때 입원 1개월 후의 81점수 변화는 평균 16.61(p<0.001). 퇴원 시는 33.51(p<0.001), 퇴원 1개월 후는 43.56 만큼 호전되었다(p<0.001). PS점수도 각각 -2.1, -3.94, 그리고 -5,52만큼 호전되었다(p<0.001). 그리고 퇴원시에 비해 퇴원 후의 변화도 81점수는 10.06만큼, PS점수는 -1.51만큼 모두 유의하게 호전되었다 (p<0.001). 물리치료 시작시점과 회원시의 BI점수 변화와 유의한 관련이 있는 요인은 물리치료 시작시점의 BI점수와 연령이었는데(p<0.05), 시작시점의 BI점수가 낮고 연령이 낮을수록 기능호전이 컸다. 시작시점과 종료시점 사이의 변화는 시작시점의 BI점수. 퇴원시의 BI점수, 종교유무가 유의하게 관련이 이었다(p<0.05). 즉, 종교를 믿고 있거나 물리치료 시작시점의 BI점수가 낮고 퇴원시의 BI 점수가 높을수록 기능호전이 컸다. 퇴원 시와 1개월 후에는 퇴원시의 BI점수와 종교유무였는데, 퇴원시의 BI점수가 낮고 종교를 믿는 환자에서 기능호전이 유의하게 컸다.(p<0.05). 물리치료 시작시점과 퇴원시의 PS점수 변화와 유의한 관련이 있는 요인은 물리치료 시작시점의 PS점수였는데(p<0.05), 시작시점의 PS점수가 높을수록 기능호전이 컸다. 시작시점과 종료시점사이는 시작시점의 PS점수, 퇴원시의 PS점수, 퇴원 1개월 후에 적극적으로 물리치료를 받았는지의 여부 등이었다(p<0.05). 즉, 시작시점의 PS점수가 높고, 퇴원시의 PS점수는 낮으면서 적극적으로 물리치료를 받은 환자가 기능호전이 켰다. 퇴원 시와 1개월 후에는 퇴원시의 PS접수가 높고 적극적으로 물리치료를 받을수록 기능호전이 유의하게 컸다(p<0.05). 이상의 결과를 요약하면, 뇌졸중환자의 물리치료 효과를 BI점수로 평가하면 물리치료 시작시점 및 퇴원시의 BI점수, 연령 및 종교유무가 중요한 요인이고, PS점수로 평가하면 시작시점 및 퇴원시의 PS점수와 퇴원 1개월 후에 적극적으로 물리치료를 받았는지의 여부가 중요한 요인으로 생각된다.

• Journal of Dental Anesthesia and Pain Medicine
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• 제22권2호
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• pp.129-143
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• 2022

Background: Patient-controlled analgesia (PCA) has been widely used as an effective medical treatment for pain and for postoperative analgesia. However, improper dose errors in intravenous (IV) administration of narcotic analgesics from a PCA infusion pump can cause patient harm. Furthermore, opioid overdose is considered one of the highest risk factors for patients receiving pain medications. Therefore, accurate delivery of opioid analgesics is a critical function of PCA infusion pumps. Methods: We designed a microbalance method that consisted of a closed acrylic chamber containing a layer and an oil layer with an electronic balance. A commercially available infusion analyzer (IDA-5, Fluke Co., Everett, WA, USA) was used to measure the accuracy of the infusion flow rate from a commercially available smart PCA infusion pump (PS-1000, UNIMEDICS, Co., Ltd., Seoul, Korea) and compared with the results of the microbalance method. We evaluated the uncertainty of the flow rate measurement using the ISO guide (GUM:1995 part3). The battery life, delay time of the occlusion alarm, and bolus function of the PCA pump were also tested. Results: The microbalance method was good in the short-term 2 h measurement, and IDA-5 was good in the long-term 24 h measurement. The two measurement systems can complement each other in the case of the measurement time. Regarding battery performance, PS-1000 lasted approximately 5 days in a 1 ml/hr flow rate condition without recharging the battery. The occlusion pressure alarm delays of PS-1000 satisfied the conventional alarm threshold of occlusion pressure (300-800 mmHg). Average accuracy bolus volume was measured as 63%, 95%, and 98.5% with 0.1 ml, 1 ml, and 2 ml bolus volume presets, respectively. A 1 ml/hr flow rate measurement was evaluated as 2.08% of expanded uncertainty, with a 95% confidence level. Conclusion: PS-1000 showed a flow accuracy to be within the infusion pump standard, which is ± 5% of flow accuracy. Occlusion alarm of PS-1000 was quickly transmitted, resulting in better safety for patients receiving IV infusion of opioids. PS-1000 is sufficient for a portable smart PCA infusion pump.

• 대한약학회:학술대회논문집
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• 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2-2
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• pp.94.3-95
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• 2003

Familial form of Alzheimer's disease (FAD) is caused by mutations in presenilin-l (PS-1) and presenilin-2 (PS-2). PS1 and PS2 mutation are known to similar effects on the production of amyloid peptide (A ) and cause of neuronal cell dath in the brain of patient of Alzheimer's disease. The importance of the alternation of cellular calcium homeostasis in the neuronal cell death by PS1 mutation in a variety of experimental systems has been demonstrated. However, no studies on the effect of PS2 of mutant PS2 on cellular calcium homeostasis, and relevance of its change to neuronal cell vulnerability against neurotoxins have been reported. (omitted)

• 한국독성학회:학술대회논문집
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• 한국독성학회 2003년도 추계학술대회
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• pp.145-145
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• 2003

Familial form of Alzheimer's disease (FAD) is caused by mutations in presenilin-1 (PS-1) and presenilin-2 (PS-2). PS1 and PS2 mutation are known to similar effects on the production of amyloid ${\beta}$ peptide (A${\beta}$) and cause of neuronal cell death in the brain of patient of AD. The importance of the alternation of cellular calcium homeostasis in the neuronal cell death by PS1 mutation in a variety of experimental systems has been demonstrated.(omitted)

• Clinics in Shoulder and Elbow
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• 제18권1호
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• pp.43-46
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• 2015

Pancoast syndrome (PS) is characterized by a malignant neoplasm of the superior sulcus of the lung with destructive lesions of the thoracic inlet and involvement of the brachial plexus and cervical sympathetic nerves. The most common initial symptom of PS is shoulder pain; however, cough, dyspnea, and hemoptysis, signs often associated with lung cancer, are not as common. Investigation of PS can be difficult even with plain radiographs of the chest because it is surrounded by osseous structures such as the ribs, vertebral bodies, and manubrium. Due to these characteristics, orthopedic surgeons tend to make a misdiagnosis resulting in delay of appropriate treatment. Here we report on a patient who was supposed to undergo rotator cuff repair for his shoulder pain and weakness, and was eventually diagnosed with PS.

• BMB Reports
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• 제56권8호
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• pp.463-468
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• 2023

Screening for genetic defects in the cells should be examined for clinical application. The Pearson syndrome (PS) patient harbored nuclear mutations in the POLG and SSBP1 genes, which could induce systemic large-scale mitochondrial genome (mtDNA) deletion. We investigated iPSCs with mtDNA deletions in PS patient and whether deletion levels could be maintained during differentiation. The iPSC clones derived from skin fibroblasts (9% deletion) and blood mononuclear cells (24% deletion) were measured for mtDNA deletion levels. Of the 13 skin-derived iPSC clones, only 3 were found to be free of mtDNA deletions, whereas all blood-derived iPSC clones were found to be free of deletions. The iPSC clones with (27%) and without mtDNA deletion (0%) were selected and performed in vitro and in vivo differentiation, such as embryonic body (EB) and teratoma formation. After differentiation, the level of deletion was retained or increased in EBs (24%) or teratoma (45%) from deletion iPSC clone, while, the absence of deletions showed in all EBs and teratomas from deletion-free iPSC clones. These results demonstrated that non-deletion in iPSCs was maintained during in vitro and in vivo differentiation, even in the presence of nuclear mutations, suggesting that deletion-free iPSC clones could be candidates for autologous cell therapy in patients.

• The Journal of Korean Physical Therapy
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• 제10권1호
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• pp.7-21
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• 1998

본 연구는 뇌졸중 환자들의 퇴윈 후 1개월까지의 물리치료 양상 및 기능변화와 이에 관련된 요인을 알아보기 위해 1996년 11월 1일 부티 1997년 3월 31일까지 약 4개월 간 부산시 및 대구시, 안동시 등에 소재하고 있는 10개 병원에서 물리치료를 시작한 뇌졸중환자 101명을 대상으로 물리치료를 시작한 시점. 1개월 후, 퇴원 시, 그리고 퇴원 후 1개월이 지난 시점까지 추적하여 기능변화를 평가하였다. 뇌졸중환자의 물리치료 시작 시점의 BI점수는 $27.18\pm23.7$이었고, PS점수는 $17.54\pm4.33$이었다. 물리치료 시작시점을 기준으로 할 때 입원 1개월 후의 BI점수 변화는 평균 21.39(P<0.001), 퇴원시는 37.47(P<0.001), 퇴원 1개월 후는 46.49 만큼 호전되었다(P<0.001). PS점수도 각각 -2.02, -4.52, 리고 -6.26만큼 호전되었다(P<0.001). 그리고 퇴원시에 비해 퇴원후의 변화도 BI점수는 9.01만큼, PS점수는 -1.73만큼 유의하게 호전되었다.(P<0.001). 물리치료 시작시점과 퇴원 시의 BI점수 변화와 유의한 관련이 있는 요인은 물리치료 시작시점의 BI점수와 연령으로 (p<0.05), 물리치료 시작시점의 BI점수가 낮고 연령이 40세 미만에서 기능호전이 컸다. 물리치료 시작시점과 종료시점 사이의 BI점수의 변화는 물리치료 시작시점의 BI점수, 퇴원 1개월 후에 적극적으로 물리치료를 받았는지의 여부, 연령 그리고 수술여부와 유의한 관련성이 있었다. (p<0.05). 즉, 무리치료 시작시점의 BI점수가 낮고, 퇴원 1개월 후에 적극적으로 물리치료를 받은 환자, 연령 40세 미만에, 그리고 수술을 받지 않은 환자에서 기능호전이 컸다. 퇴원시와 퇴원 1개월 후의 BI점수 변화와 관련 있는 변수는 퇴원시의 BI점수, 마비부위, 종교유무 이었는데, 퇴원시의 BI점수가 낮고 좌측마비환자이며 종교를 믿는 환자의 기능호전이 유의하게 컸다(p<0.05). 물리치료 시작시점과 퇴원시의 PS점수 변화와 유의한 관련이 있는 요인은 물리치료 시작시점의 PS점수와 연령이었는데(p<0.05), 물리치료 시작시점의 PS점수가 높고 40세 미만에서 기능호전이 컸다. 물리치료 시작시점과 종료시점 사이의 PS점수 변화와 관련 있는 분수는 물리치료 시작시점의 PS점수, 퇴원 1개월 후에 적극적으로 물리치료를 받았는지의 여부, 연령, 교육수준, 퇴원 후 물리치료 받은 기간, 수술여부 등이었다.(p<0.05). 즉, 물리치료 시작시점의 PS점수가 높고, 퇴원 1개월 후에 적극적으로 물리치료 받은 환자, 연령이 40세 미만, 학력이 높을수록, 퇴원 후 물리치료 받은 기간이 짧은 환자, 그리고 수술을 받지 않은 환자에서 기능호전이 컸다. 퇴원시와 퇴원 1개월 후의 PS점수의 변화는 퇴원시 PS점수가 높고, 학력이 높을수록, 퇴원 1개월 후에 적극적으로 물리치료를 받은 환자, 그리고 퇴원 후 물리치료 기간이 짧고, 남자에서 기능호전이 유의하게 컸다.(p<005). 이상의 결과를 요약하면, 뇌졸중환자의 물리치료 효과를 BI점수로 평가하면 물리치료 시작시점의 BI점수와 연령이 중요한 요인이고, PS점수로 평가하면 역시 물리치료 시작시점의 PS점수와 연령 그리고 교육수준이 중요한 요인으로 생각된다.

• Journal of Korean Neurosurgical Society
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• 제63권4호
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• pp.504-512
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• 2020

Objective : An important factor during pituitary adenoma surgery is to preserve pituitary stalk (PS) as this plays a role in reduction of the risk of postoperative diabetes insipidus. The hypothalamic-hypophyseal tract (HHT) projects through the PS to the posterior pituitary gland. To reconstruct white matter fiber pathways, methods like diffusion tensor imaging (DTI) tractography have been widely used. In this report we attempted to predict the position of PS using DTI tractography and to assess its intraoperative correlation during surgery of pituitary adenomas. Methods : DTI tractography was used to tract the HHT in nine patients before craniotomy for pituitary adenomas. The DTI location of the HHT was compared with the PS position identified at the time of surgery. DTI fiber tracking was carried out in nine patients prior to the planned craniotomy for pituitary adenomas. In one patient, the PS could not be identified during the surgery. In the other eight patients, a comparison was made between the location of the HHT identified by DTI and the position of the PS visualized at the time of surgery. Results : The position of the HHT identified by DTI showed consistency with the intraoperative position of the PS in seven patients (88.9% concordance). Conclusion : This study shows that DTI can identify the position of the HHT and thus the position of the PS with a high degree of reliability.

• Advances in pediatric surgery
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• 제16권2호
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• pp.154-161
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• 2010

Pulmonary sequestration (PS) is a rare congenital malformation of the lower respiratory tract. The anomaly is characterized by absence of communication with the tracheobronchial tree and isolated blood supply from an anomalous systemic vessels. With the utilization of antenatal ultrasound, the diagnosis of asymptomatic neonatal PS has increased. Treatment options include observation, arterial embolization and surgical resection. The aim of the present study is to review the clinical course of PS and to share our experience with thoracoscopic resection. A total of 96 patients with PS were treated at Asan Children's Hospital between 1999 and 2010. The diagnosis of PS was established by CT in the cases managed by observation or embolization, and by tissue pathology in the surgical cases. Medical records and radiographic images were retrospectively reviewed. Thirty-nine patients were managed by embolization and 30 patients by surgery. The remaining 27 patients have been under observation without any procedures. Among 27 observation patients, 1 patient regressed completely and 10 patients were lost to follow up. Of the 39 embolizations patients, 2 had their lesion regress and sepsis was suspected after embolization. In 1 patient, the microcoil migrated to the iliac artery during the embolization procedure, and another patient developed renal abscess caused by renal artery embolization. Among 30 surgical cases, resection by thoracotomy was performed in 27 at the Department of Thoracic Surgery, and thoracoscopic resection in 3 at the Division of Pediatric Sugery. Only one wound complication ocurred. We conclud that surgical excision should be recommended for pulmonary sequestration, whether the sequestration is symptomatic or not because of the risk of infection, the low rate of natural regress, poor compliance, severe complications after embolization, and to exclude other pathology. In summary, thoracoscopic resection of the pulmonary sequestration is feasible, efficacious, safe and cosmetically superior even in neonatal period.

• Journal of Chest Surgery
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• 제24권10호
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• pp.960-966
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• 1991

From February 1984 through July 1991, 104 infants less than 1 year of age with congenital heart defects underwent open heart repair with conventional cardiopulmonary bypass which occupied 10.7% of all patients with congenital heart defects operated on during same period. There were 66 boys and 38 girls 7 days to 12 months [mean age, 8.2 months]. Four patients were neonates, 8 were 1 to 3 months, 23 were 4 to 6 months, and 69 were 7 to 12 months of age. Mean body weight at repair was 6.9kg and mean BSA, 0.36m2 Indications for operation were intractable congestive heart failure and severe pulmonary hypertension in patients with VSD and severe cyanosis and anoxic spells in patients with TOF. Conditions corrected were VSD[79], TOF[8], AVSD[4], PS[2], PA+IVS[2], TAPVC [2], MR[2], DOLV[l], Truncus arteriosus[1], D-TGA[1], and PA-VSD[1]. Twenty-three of 79 patients with VSD had associated cardiovascular anomalies which included PDA in 16 patients, PS in 9 patients, ASD in 5 patients, LSVC in 2 patients, MR in 1 patient, dextrocardia in 1 patient, and single coronary artery in 1 patient. The hospital mortality rate was 24.0% which was much higher than that of 6% in patients over 1 year of age. The greatest mortality occurred in babies of low weight under 6 months of age, There was no late death. Surviving infants showed marked symptomatic improvement and change in growth patterns. These surgical results were to be overcome with proper pre- and post-operative management and improvement of surgical technique