• Maxillofacial Plastic and Reconstructive Surgery
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• 제16권2호
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• pp.202-207
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• 1994

본원에서는 안면부 손상후 발생한 피하기종과 기종격이 있는 두 환자를 치험하였다. 다른부위 손산 없이 단독으로 안면부 손상후 발생한 피하기종과 기종격은 예후가 좋고 자연치유가 잘되지만 심각한 합병증 및 후유증을 방지하기 위하여 세심한 관찰 및 보존적 처치가 요구된다. 이에 저자들은 증상, 진단. 해부학적구조, 발생가전, 합병증, 치료양식등의 문헌고찰과 더불어 치험 증례를 보고 하는 바이다.

• 한국자동차공학회논문집
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• 제21권2호
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• pp.104-113
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• 2013

New USNCAP has been carried out by NHTSA including front and side crash from MY2011. In this paper, test results for USNCAP Side crash were reviewed by statistical analysis. This review focused on side crash test results to investigate the effect of changes from new USNCAP side crash test protocol among 30 passenger cars. These results were summarized as followings. Total number of 5 star vehicles on the front seat dummy (16 vehicles, 53.3%) was slightly smaller than the rear seat's (17 vehicles, 56.7%) in MDB test. For the ES-2re dummy, chest injury, ie maximum rib deflection contributed to 66% in the mean value of $P_{joint}$. Pelvis injury was highly dependent upon performance up to 87% in the SID-IIs dummy cited on the rear seat in average $P_{joint}$. For Pole test, pelvis injury made contribution to the average performance to 83%. For standard deviation, it showed the largest value in the same body region as the mean value for each dummy. Overall front seat performance showed 14 vehicles, 44.6% with 5 star vehicles less than each MDB or Pole test result. This result showed that performances in MDB test were different pattern to Pole test on driver position. Number of 5star vehicles for overall side NCAP performance are 18 passenger cars (60%). Curtain airbag and driver thorax airbag were equipped in all test vehicles. One vehicle is equipped with thorax airbag in the rear seat. Results from two side tests considered as reliability problem, ie the cause for large standard deviation in side crash test. Consequently, the countermeasure for new USNCAP side crash test is essential to design the effective side structures for side collision and to control well dummy kinematics with curtain and thorax airbag in order to reduce chest and pelvis injuries.

• The Korean Journal of Medicine
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• 제93권6호
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• pp.565-570
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• 2018

PCIS는 심장 수술, 급성 심근경색 또는 경피적 관상동맥중재술 등에 의하여 발생한 심장 손상 후 발생하는 합병증이다. 본 저자는 경피적 관상동맥중재술 이후 급성으로 발생한 PCIS를 스테로이드를 사용한 약물로 치료하였기에 이를 문헌고찰과 함께 보고하는 바이다. 비스테로이드항염제에 반응하지 않는 PCIS 환자에게 스테로이드의 조기 투약이 도움이 될 수 있고 장기적인 유지 요법이 도움이 될 수 있음을 말해주고 있다.

• 자동차안전학회지
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• 제8권4호
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• pp.12-17
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• 2016

NHTSA (National Highway Traffic Safety Administration) has offered consumers the vehicle safety information on their car since 1978. NHTSA believes that they contribute auto makers to develop safer vehicle for customers, which will result in even lower numbers of deaths and injuries resulting from motor vehicle crashes. NHTSA has been studied why people are still dying in frontal test despite of the use of many restraints system and they understand that current test does not reflect real world crash data such as oblique and corner impact test. As a result, NHTSA announced that a new test method will be introduced to use of enhanced biofidelic dummy and new crash avoidance technology evaluation from 2019. New and refined injury criteria will be applied to Head / Neck / Chest / Lower Leg. BrIC(Brain Injury Criterion)value in NHTSA test results using THOR dummy from 2014 to 2015 was average 0.91 and 1.24 in driver and passenger dummies. IIHS 64kph SOF test is the most likely to new frontal oblique test in an aspect of offset impact which is being studied by NHTSA. In this paper, we focused on head injury, especially brain injury - BrIC and conducted IIHS 64kph SOF (Small Offset Front) test with Hybrid III dummy to evaluate the injury for BrIC. Based on the test results, these data can be predicted BrIC level and US NCAP rating with current vehicle.

• 한국시뮬레이션학회논문지
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• 제26권3호
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• pp.1-11
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• 2017

격실 내부에서의 폭발로 인한 인원의 피해를 분석하였다. 특히 격실 내에서 폭압 전파에 영향을 미치는 돌출된 장애물의 유무에 따른 인원 피해를 비교하였다. 격실 내에 장애물이 없는 경우에 경험적 고속처리모델을 이용하여 폭압을 예측할 수 있다. 하지만 격실 내부에서는 폭압 프로파일이 개활지에서와 달리 복잡하며 의자와 같은 구조물이 존재하는 경우에는 경험적 고속처리모델 적용이 불가하다. 따라서 장애물이 있는 격실 내부 폭압은 유한요소해석을 이용해 획득하였다. 또한 개활지의 폭압 프로파일을 기준으로 개발된 Friedlander 압력-충격량 곡선을 격실 내부에서의 복잡한 폭압 전파로 인해 피해평가에 적용할 수 없어, Axelsson 단자유도 모델을 적용하여 인원 피해를 분석하였다. 장애물이 있는 경우 인원의 흉벽 속도는 26에서 76 퍼센트(%) 만큼 감소되었으며 격실내 인원피해 또한 감소되었다.

• Journal of Chest Surgery
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• 제37권12호
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• pp.999-1002
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• 2004

흉부관통상 환자에서 심장손상이 의심될 때 신속한 이송, 조기 진단 및 체계적인 수술적 치료는 좋은 결과를 얻을 수 있다. 생명을 위협하는 응급상황에서 심장손상의 정도를 진단하는 것은 어려울 수도 있다. 13세 남아가 칼에 의한 흉부 관통상을 입고 흉관으로부터 과도한 출혈이 있어 본원 흉부 외과로 전원되었다. 단순 흉부촬영에서 좌측페야에 균일한 음영 증가가 관찰되었다. 그는 의식이 혼미했으며 생체의 징후는 불안정하여 신속히 수술실로 옮겼다. 소생술 후 정중 흉골절개술을 통해 좌심실 열상을 봉합하였다. 수술 중 시행한 경식도 심초음파에서 심실중격결손에 의한 단락이 발견되었고 좌심실절개하에 데크론 첨포(Dacron patch)를 이용하여 정복하였다. 수술 후 경과는 좋았으며 심실중 격결손을 통한 작은 단락이 있었으나 추적 관찰하기로 하고 퇴원하였다.

• Journal of Trauma and Injury
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• 제28권3호
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• pp.202-205
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• 2015

Purpose: Pulmonary cement embolization after vertebroplasty is a well-known complication. The reported incidence of pulmonary cement emboli after vertebroplasty ranges frome 2.1% to 26% with much of this variation resulting from which radiographic technique is used to detect embolization. Onset and severity of symptoms are variable. Case description: We present the case of a 83-year-old women who underwent fourth lumbar vertebroplasty and subsequently had dyspnea several days later. Posteroanterior chest radiography showed multiple linear densities. Computed tomography of thorax revealed also multiple bilateral, linear hyperdensities within the lobar pulmonary artery branches are detected in axial and coronal views. Literature Reviews: Operative management of vertebral compression fractures has included percutaneous vetebroplasty for the past 25 years. Symptoms of pulmonary cement embolism can occur during procedure, but more commonly begin days to weeks, even months, after vertebroplsty. Most cases of pulmonary cement emboli with cardiovascular and pulmonary complications are treated nonoperatively with anticoagulation. Endovascular removal of large cement emboli from the pulmonary arteries is not without risk and sometimes requires open surgery for complete removal of cement pieces. Conclusion: Pulmonary cement embolism is a potentially serious complication of vertebroplasty. If a patient has chest pain or respiratory difficulty after the procedure, chest radiography and possibly advanced chest imaging studies should be performed immediately.

• Journal of Chest Surgery
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• 제8권2호
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• pp.119-124
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• 1975

This is a case report of the rupture of the trachea and the esophagus following external blunt trauma without any associated injury. A 7 year old male patient was brought to the emergency room. Hanyang University Hospital, on 23 Jul, 1974 while he played under the pile of pingpong table A table was fall down over the patient accidentally. The patient was injured by the table and found lying in unconsciousness on the ground.There was subcutaneous emphysema on his anterior chest and neck. A contusion on the upper part of the sternum was noted. The breathing sound were diminished over the left side of the chest. Ronchi were heard over the right lung field. This patient was suffered from vomiting, dypsnea, and irritable mental state after this accident. On the chest roentgenogram in A-P view, hyperlucency at the mediastinum and parapericardiac area suggested the pneumomediastinum. On the next day, a diagnosis of the tracheal and esophageal rupture was confirmed by the esophagogram with Lipiodol swallowing. A right thoracotomy was performed and ruptured orifice of the trachea and the esophagus were closed with interrupted sutures. Postoperative course was uneventful and primary closure of the rupture of the trachea and the esophagus were succeeded.

• Journal of Chest Surgery
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• 제7권1호
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• pp.13-22
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• 1974

A clinical evaluation was done on 120 cases of chest injury patients treated in the department of Thoracic and Cardiovascular Surgery, Chonnam National University Hospital for the period of 6 years and 3 months from January, 1968 to March, 1974. 1] Of 120 cases, 52 cases[43. 3%] were non-penetrating injuries and 65 cases[56.7%] penetrating injuries. Of them, 107 cases [89.2%] were males and 13 cases[10.8%] were females. 2] The most common etiology was stab wound[64 cases] and traffic accident[23 cases] was the next. 3] In 70% of all cases, treatment was initiated within 6 hours after receiving trauma. 4] The types of lesions in order of frequency were hemothorax[35 cases], chest wall injuries alone. 27 cases], hemopneumothorax [22 cases], pneumothorax[17 cases]. Of them, right sided lesions were 52 cases[43. 3%] and left sided lesions were 65 cases[54.2%] and 3 cases were bilateral lesions. 5] Repeated thoracentesis and closed thoracostomy were the treatment of choice in most cases in order to reestablish early and rapid reexpansion of the lungs. Open thoracotomy was, however, mandatory on 39 cases[32.5%]. 6] The overall mortality was 5.8% [7 cases]; 5 cases of nonpenetrating injuries and 2 cases of penetrating ones.

• Journal of Chest Surgery
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• 제21권2호
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• pp.373-378
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• 1988

Since the introduction of percutaneous; transluminal coronary angioplasty[PTCA] by Grunt-zig in 1977, this is widely used in some patients with coronary artery disease and is an effective alternative to surgery for many patients. Indications for emergency coronary artery bypass graft[CABG] after PTCA are prolonged chest pain, worsening of coronary artery obstruction, "current of injury" by electrocardiogram, cardiogenic shock, and in a lesser incidence, ventricular fibrillation, coronary artery dissection[without obstruction], heart block, and intractable cardiac arrest. Recently, we have experienced one case of emergency CABG following unsuccessful PTCA. The patient was 54 year-old male and admitted with complaint of angina pectoris. The routine electrocardiogram revealed within normal limit. The treadmill test revealed severe chest pain after 2 min. exercise. Coronary cineangiogram revealed 95% segmental stenosis of the proximal right coronary artery. Our cardiologist was planned PTCA. During PTCA, severe chest pain and ischemic pattern on electrocardiogram were developed. But they were not relieved even by morphine and nitroglycerin till 90 min. So we performed emergency single coronary artery bypass graft from aorta to proximal right coronary artery with great saphenous vein. The patient had an excellent postoperative recovery and was free from anginal attack. He has shown striking improvement in general status[NYHA functional class 1] during 6 months after operation.operation.