• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2007.10a
• /
• pp.901-904
• /
• 2007

Nowadays, in many fields of medical treatment, we can make an observation and a diagnosis of inward disease without using a surgical operation. As one of them, ultra-sound diagnosis system can be available widely in its cost and size compared with other medical instruments. This system also make it possible for us to see the inner parts of the body in real time harmlessly for a long time. So it can be utilized to inspect the movement of heart or fetus and to diagnose an internal disease of the soft tissues. Ultra-sound images can be generated by the reflexive and scattered wave through the pulse generator and so in ultrasound images there exist inherently many affective noised signals. In this paper, we are to take an noise-restrained image and to extract a more affective regions of the images.

• Journal of Chest Surgery
• /
• v.39 no.10 s.267
• /
• pp.782-785
• /
• 2006

Chronic pulmonary obstructive disease is known to be a significant risk factor for mortality in patients who under-went operation for abdominal aortic aneurysm. To decrease perioperative respiratory complication in these patients, maintenance of self respiration as possible is one of the better method. A seventy-seven year old male patient complained of abdominal pain and he was diagnosed for 9 cm sized abdominal aortic aneurysm. But he had severe chronic obstructive pulmonary disease which was expected to increase surgical mortality. So we introduced epidural anesthesia with maintenance of self respiration and performed surgical resection and graft replacement of abdominal aorta, and he recovered without any complication.

• Journal of Chest Surgery
• /
• v.36 no.1
• /
• pp.51-54
• /
• 2003

This patient was an 53-year-old man who had undergone Sengstaken-Blackmore tube insertion for esophageal varix bleeding. Two days after Sengstaken-Blackmore tube insertion, he developed severe left hemothorax and was transferred to our hospital. The esophagoscopic findings revealed a large perforation lengthening 8-cm in the intrathoracic esophagus. A left thoracotomy was performed 33 days after the injury due to repeated varix bleedings and poor conditions. An 8-cm longitudinal perforation of the intrathoracic esophagus with gross suppurative empyema was found. Primary repair and esophageal exclusion was performed 2cm proximal and distal to the perforation, using rows of nonabsorbable staplers(TA stapler 60 $\times$ 4.8) and large bore thoracostomy tubes were placed for local drainage. Six days after intrathoracic esophageal exclusion, an esophagogram revealed a leakage at just above the proximal stapling site. A cervical esophageal exclusion was performed using the same method. One hundred thirty seven days after exclusion operation for the intra-thoracic esophageal perforation, the patient was able to eat per orally without any secondary esophageal reconstructive surgery.

• Journal of Chest Surgery
• /
• v.36 no.2
• /
• pp.118-121
• /
• 2003

A 25-year-old female patient was adimitted due to discomfort in the right chest and left epigastric area. Chest X-ray and chest CT showed a round 4$\times$4$\times$4cm sized mass located in the right lower lobe and abutted on the right diaphragm and metastatic lesions in the right lower lobe and right middle lobe. In exploratory thoracotomy, we discovered a mass originating from the right diaphragm which directly invaded the right lower lobe and metastatic subpleural lesions in the right lower lobe and right middle lobe. The mass was diagnosed as sarcoma by frozen section biopsy and we removed the mass by on bloc resection of the right diaphragm and right lower lobe. Metastatic subpleural lesions in the right lower lobe and right middle lobe were removed by wedge resection. The mass was malignant fibrous histiocytoma of the diaphragm in permanent pathologic examination and chemotherapy was done as adjuvant measure. We report one extremely rare case of malignant fibrous histiocytoma of the diaphragm with literature.

• Journal of Chest Surgery
• /
• v.39 no.1 s.258
• /
• pp.76-79
• /
• 2006

Primary malignant melanoma of the lung is extremely rare. A 46-year-old lady was admitted with two month history of dry cough and blood-tinged sputum. Chest CT showed 4.5 $\times$ 5.0 cm sized mass at the right lower lobe. Repeated bronchoscopic and percutaneous biopsies showed no definite diagnosis. Preoperative evaluations revealed no systemic metastais. So, we tried the surgical approach. Right lower lobectomy and lymph node dissection was done. The mass and lymph node were confirmed as primary malignant melanoma. The patient presented with right hemiparesis 40 days after operation. Brain MRI showed 1.5$\times$2.0 cm sized mass lesion on the left parietal lobe. Mass excision was done. However, she expired 8 months later.

• Journal of Chest Surgery
• /
• v.39 no.2 s.259
• /
• pp.162-165
• /
• 2006

The innominate artery aneurysm is an uncommon entity. A 36-year-old man was transferred to our hospital because of incidental finding of right superior mediastinal mass. He had a history of blunt chest trauma due to automobile accident 16 years earlier. Computed tomography scanning demonstrated 5-cm sized sacular aneurysm with thrombus at the innominate artery. The prosthetic bifurcated bypass grafting from the ascending aorta to the right common carotid artery and right subclavian artery was performed under the moderate hypothermic cardioplumonary bypass. We report a successful surgical treatment for a rare case of the innominate artery aneurysm.

• Journal of Chest Surgery
• /
• v.30 no.4
• /
• pp.462-466
• /
• 1997

Primary mediastinal choriocarcinoma is characteristically seen in young males presenting with the symptomes of cough, chest pale, and gynccomastia. A 33-year-old woman was admitted to the hospital because of severe dyspnea and chest pain which was aggravated rapidly 2 or 3 days ago. Posterior mcdiastinal mass measuring about 1 cm in diameter was seen in Chest P-A, left lateral view of chest, and chest CT. Serum $\beta$-HCG level was markedly elevated up to 200, 000 mIxt. Whole body CT and other studies could not find any lesion on ovary and uterus. But, a single nodule nEeasuring about 1 cm in diameter was identified in the brain CT. The tumor cells (syncytiotrophoblastic cells) from resected mass revealed positivity on i histochemical staining for $\beta$-HCG. She was treated with EMA-CO after resection of tumor, But, 7 months later, she was readmitted and showed cerebral hemorrhage due to metastatic choriocarcinoma. She was operated again for the brain tumor, and was doing well for further 7 months.

• Journal of Chest Surgery
• /
• v.37 no.11
• /
• pp.929-932
• /
• 2004

The estimated relative incidence of primary pulmonary sarcoma to lung cancer is 0.4%. Furthermore, osteogenic sarcoma of the pulmonary artery is extremely rare. We report a case of a 63-year-old woman who visited our emergency room with the chief complaints of chest pain, dyspnea and dizziness. On echocardiography, right heart failure due to acute pulmonary artery embolism was diagnosed and we performed emergency operation. After opening the main pulmonary artery trunk, we found a mass attached to the arterial wall and massive thrombi around the mass. The mass was diagnosed as primary pulmonary artery osteosarcoma through postoperative evaluation. The patient received chemotherapy and radiotherapy. The patient is alive without specific symptoms 16 months postoperatively.

• Journal of Chest Surgery
• /
• v.32 no.1
• /
• pp.10-15
• /
• 1999

Background: Mitral valve replacement with chordal preservation in patients with mitral regurgitation has been proved to be beneficial for left ventricular function and for reduction of postoperative complication. However, in patients with mitral stenosis, the effectiveness of the technique is controversial. It is not easy to insert prosthetic valve without left ventricular outflow tract obstruction and prosthetic valve leaflet motion hinderance. Material and Method : Five patients with mitral stenosis and seven patients with mitral stenoinsufficiency underwent mitral valve replacement with preservation of mitral subvalvular apparatus. Thickened and calcified leaflets are made thin by peeling off the thickened and calcified part. Commissurotomy was done and anterior leaflet was incised 2 mm apart from the annulus and then divided into two segments. Anterolateral and posteromedial segments including strut chordae, were reattached to mitral commissural area, respectively. Result: There was no evidence of prosthetic valve dysfunction, paravalvular leakage, left ventricular outflow tract obstruction, complications and operative or late deaths. Conclusion: We conclude that mitral vlave replacement with chordal preservation was safe and effective technique for the patients with mitral stenotic disease.

• Journal of Chest Surgery
• /
• v.29 no.5
• /
• pp.577-580
• /
• 1996

Traumatic pulmonary cysts are rare cavitary pulmonary lesions following nonpenetrating thoracic trauma. The pathogenesis of this lesion Is a tear in the pulmonary parenchyma with leakage of air and fluid into this tear. The diagnosis is one of exclusion, based on an awareness that lung cyst can develop after trauma. Once traumatic lung cyst is diagnosed, the principle of the treatment is in-hospital obser- vation with respirato y support. However, if a cyst is complicated by infection unresponsive to a trial of appropriate antibiotic therapy and does not progressively become smaller, surgical intervention is indicated. Authors recently experienced a case of traumatic lung cyst in a 19 year-old man. Case presentation and review of articles on traumatic pulmonary cyst follows.