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N-아세틸시스테인 투여후 발생한 급성 무기폐 : 증례보고
이광범,안용미,이철승,최준석,박천희 朝鮮大學校 附設 醫學硏究所 2009 The Medical Journal of Chosun University Vol.34 No.1
Causes of atelectasis under general anesthesia are tracheal foreign body, blood clot, aspiration of bronchial secretion, one-lung ventilation and relative predominance of parasympathetic system. N-acetylcysteine is mucolytic agent which improves the capability of sputum drainage. After administration of N-acetylcysteine, an increased volume of liquified bronchial secretions may occur. When cough is inadequate, the airway must be maintained open by mechanical suction. In case that is a mechanical block due to local accumulation, the airway should be cleared by endotracheal aspiration. A 49-year-old female was admitted for bilateral laparoscopic oophorectomy due to ovarian tumors. There was not any problem during a general anesthesia induction. After instillation of N-acetylcysteine into endotracheal tube, acute atelectasis was developed in right lower lung.
成熟家兎의 足趾屈曲腱 切題時 건초막보존 및 切開方法이 Polyethylene tube 揷入 後 건초막형성, 腱癒着 및 터널 形成에 미치는 組織學的 變化에 關한 實驗的 硏究
李廣範,李弘鍵 고려대학교 의과대학 1981 고려대 의대 잡지 Vol.18 No.1
Inevitable extensive scar formation in the severely damaged gliding bed of flexor tendon has long been a major problem in the reconstructive hand surgery. Many trials to overcome this scarring have evoked the staged operation using the silicon rods to build pseudosheath for the later tendon grafting or transfer. However it has been controversial whether the undamaged flexor fibro-osseous retinaculum and sheath would be retained or not after scarred tendon and sheath were thoroughly excised. Author's experimental study is focused on the histological changes along the newly forming sheath in case of replacing a polyethylene tube through the various incisions over the flexor sheath after excision of the third long flexor tendon of the hindfoot in the adult rabbits. For comparative study, longitudinal midline incision is placed over the skin and flexor sheath 4 to 5cm in length and 2cm in length of the third long flexor is excised and replaced with the same length of the polyethylene tube in the first group. In the second group, two separate transverse incisions are placed on the flexor sheath at the extreme of 4 to 5cm in length of skin incision through where the third long flexor tendon is excised 2cm in length and replaced with the same length of the polyethylene tube. Following the above mentioned surgical procedures, the tissues around the polyethylene tube and newly forming sheath were examined histologically with the interval of the first, second, third, fourth, sixth and eighth week in both groups. The results obtained are as follows; 1. Compact new sheath without adhesion or inflammatory reaction was completed at the sixth week in the first group and at the fourth week in the second group. 2. Fibrovascular proliferation was main histologic pictures from the second to fourth week in the first group and the second group disclosed moderate fibrovascular proliferation at the first and second week. 3. Infiltration of inflammatory cells in the tunnel of sheath was observed at the first and second week in second group. 4. Marked hemorrhagic picture was noted at the first and second week in the first group and only at the first week in the second group. 5. Above mentioned experimental findings lead to a conclusion that small transverse incision to the tendon sheath for the implantation of the polyethlene tube induced minor tissue reaction and early completion of tendon sheath than longitudinal midline incision.
경유자동차의 실험실과 실도로 주행시험에 관한 비교 분석
이광범,용부중,Lee, Kwangbum,Yong, Boojoong 한국자동차안전학회 2020 자동차안전학회지 Vol.12 No.1
Since a diesel vehicle scandal related to the 'A' automobile company was issued in the United States in 2015, many countries have been interested in emission defeat devices. Being embedded in some diesel passenger cars sold in Korea, a defeat device for exhaust gas may have influence on both fuel economy and NOx emissions. In order to examine such effects, we carried out laboratory indoor tests as well as real road driving tests using four models of 'A' automobile company which may employ defeat devices. Those tests were performed observing the test modes of FTP-75, HWFET, and NEDC. Although fuel economy and NOx emissions according to indoor tests comply with the suggested tolerance, the findings in the real road driving tests do not satisfy the tolerance. Along with the results provided in this study, further evaluation may be necessary to investigate the noticeable difference between the indoor and real road tests.
이광범,김정률,안용미,최준석,박천희 朝鮮大學校 附設 醫學硏究所 2008 The Medical Journal of Chosun University Vol.33 No.3
Perioperative cerebral infarction is rare but may be fatal. This is a case report of acute cerebral infarction following general anesthesia in geriatric patient. A 72 year old female patient was admitted for transabdominal hysterectomy and bilateral saipingooophorectomy and pelvic lymphnode dissection. Preanesthetic assessment revealed a history of hypertension and diabetes mellitus. After surgery, she was alert but she gradually appeared to have right hemiparesis and confusion. Emergency CT brain scan showed early cerebral infarction in the middle cerebral artery territory. She was transferred to the depart ment of neurology and received treatment. She was discharged at 19 days after surgery with improved symptoms.