• Journal of Chest Surgery
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• v.29 no.5
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• pp.524-529
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• 1996

200 cases of pulmonary tuberculosis patients treated by surgical resection were anlized Bronchial resection margin was examined by microscopic study to detect submucosal tuberculosis granuloma. 6 cases of bronchopleural fistula that occurred after resection were also asnalized to fond any relation with submucosal granuloma. Among 200 cases, 19 cases (9.5%) showed submucosal granu- loma. Of the 19 cases, 2 cases (10.5%) developed ea ly and late bronchopleural fistula On the con- trary, only 2.2% developed in granuloma negative cases. Granuloma positive cases were mote fre- quently seen in preoperative sputum positive cases and showed incidence of residual pleural dead space resection.

• Journal of Chest Surgery
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• v.36 no.11
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• pp.878-882
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• 2003

Tracheal bronchus is an aberrant, accessory or ectopic bronchus arising almost invariably from the right lateral wall of the trachea and may be related to inflammatory conditions affecting the lung, including recurrent pneumonia, bronchiectasis. Recently we experienced a case of tracheal bronchus associated with pulmonary actinomycosis. The 37-year-old male patient had suffered recurrent hemoptysis and had been medicated as a presumptive diagnosis of tuberculosis, but either clinical or radiologic improvement was not seen. Right upper lobectomy was performed and pulmonary actinomycosis was confirmed by the histologic examination. Postoperatively, the patient was medicated with penicillin and ampicillin for 3 months and completely recovered without any evidence of recurrence during the 6month follow-up period.

• Tuberculosis and Respiratory Diseases
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• v.56 no.1
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• pp.97-102
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• 2004

Anomalous systemic arterial supply to the lung is a rare congenital anomaly. The lung supplied by the anomalus systemic artery has a normal bronchial tree, which is usually in the basal segment of the lung, especially in the left lung. Most of patients are asymptomatic, but the main clinical symptoms of this disease are hemoptysis and exertional dyspnea. CT is useful for the diagnosis and showed a retrocardiac nodular shadow connected to the descending aorta branching into the basal segments of the relatively normal lower lobe. Surgery is indicated for all patients. Here we report a case of anomalous systemic arterial supply to normal basal segments of left lower lobe in a patient with hemoptysis with a review of the relevant literature.

• Journal of Chest Surgery
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• v.31 no.5
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• pp.536-539
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• 1998

Tracheoinnominate artery fistula is a rare complication that can happen after tracheostomy, the mortality rate is high and it reqiures urgent surgical management. The patient had received a left pneumonectomy 30 years ago and post-operative course was in uneventful. And tracheostomy was performed for acute respiratory failure due to trachea stenosis for 2 months in recent. She was improved in general condition and changed to a 11 mm silicone Montgomery T-tube. On the 3rd day after the tube changed, she had cardiac arrest due to the excessive hemorrhaging due to tracheoinnominate artery fistula. We report an successusful experience for control of bleeding by an innominate artery fistula division and the Utley maneuver for the tracheoinnominate artery fistula. We report the operation method of bleeding control.

• Journal of Chest Surgery
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• v.16 no.3
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• pp.356-361
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• 1983

Pulmonary tuberculosis is still one of unsolved problems in Korea due to increased number of far-advanced and drug-resistant patients, who have poor pulmonary function. We have analyzed 1332 operated Gases during the period of 1958-1981. Annual incidence of the disease decreased from 110 [1960] to 21 [1980]. The ratio between male and female was 7:3 and the age of peak incidence was in the 3rd and 4th decades. Recently, patients below the age of 20 years were slightly decreased, but above 50 years were slightly increased. The patients consisted of far-advanced case in 60% and moderately-advanced in 39% in 1980, as compared with 40% and 59% correspondingly in 1965. Preoperative sputum positively decreased from 91% [1958-1963] to 43.8% [ 1974-1981 ]. Medically treated patients for more than 3 years increased from 16% [1958-1963] to 51% [1974-1981]. From the view of surgical indication, totally destroyed hung increased from 27% [1958-1963] to 4396 [1974-1981 ]. Therefore, pneumonectomy occupied 53.8% of total surgical management recently. Mode of surgical treatment showed that thoracoplasty [33%], resection [57%] in 1958-1963 and thoracoplasty [2%], resection [98%] in 1974-1981. As Semb`s thoracoplasty was the first choice of treatment until 1960, thereafter resection became the choice. Postoperative mortality increased from 1.6-2.096 to 396 recently as well as morbidity. It was mainly due to increased number of poor pulmonary function and postoperative spread of disease. On the basis of our experience, far-advanced and drug-resistant patients increased in number recently, whose pulmonary function was poor. So postoperative mortality and morbidity increased. Proper surgical intervention should be considered before the appearance of resistance for all chemotherapeutic drugs.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.11a
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• pp.475-478
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• 2023

컴퓨터 단층촬영(CT)을 활용한 골격근 단면적은 근감소증과 관련된 기능을 평가하는 데 사용된다. 일반적인 근감소증 연구는 요추 3번의 골격근량을 주로 보지만 암 또는 폐절제술과의 상관관계를 예측하기 위한 다양한 연구에서는 흉추 4번, 7번, 8번, 10번, 12번 다양한 수준의 골격근량으로 연구를 진행하고 있음을 알 수 있다. 본 논문에서는 흉부와 복부 CT 영상에서 근감소증 진단을 위해서 흉추와 요추의 영역별 슬라이스를 검출하기 위해서 CNN 구조의 EfficientNetV2를 전이학습하여 인공지능 모듈을 개발하였다. 인공지능 모듈은 전체 흉부 및 복부 CT 영상에서 Cervical, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, L1, L2, L3, L4, L5, Sacral 총 19 클래스를 검출하도록 하였다. Test 데이터셋을 사용하여 Confusion Matrix와 Grad-CAM으로 모델의 정확도를 시각화하여 보였으며 검증으로 인공지능 모듈의 정확성을 측정하였다. 끝으로 우리가 개발한 다기관 공동연구 지원플랫폼에 적용하여 시각화된 결과를 보였다.

• Journal of Chest Surgery
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• v.36 no.6
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• pp.444-447
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• 2003

Sleeve pneumonectomy can be a method of treatment in a selected patient with bronchogenic carcinoma involving carina. A 64 years old male with a history of mitral valve replacement via midsternotomy 13 years ago and resection of papilloma of the vocal cord 2 years ago. The patient was admitted due to blood-tinged sputum. Bronchoscopy and computerized tomogram of the chest revealed 3.5 cm mass at lower margin of the trachea and totally obstructing the left main bronchus. A biopsy revealed squamous cell carcinoma. He underwent left sleeve pneumonectomy through sequential bilateral thoracotomy without cardiopulmonary bypass, and the pathologic stage was T4N0M0 stage IIIB. The patient is being followed through the outpatient clinic in good general condition.

• Tuberculosis and Respiratory Diseases
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• v.61 no.4
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• pp.394-397
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• 2006

Periodic hemoptysis occurring at the time of menstruation (catamenial hemoptysis) is a rare disorder and generally signifies indicates the presence of thoracic endometriosis. A diagnosis of catamenial hemoptysis is usually established based on the clinical history and the exlusion of other causes of the recurrent hemoptysis. Serial computed tomograms of the chest during and in the interval between menstruations periods is a useful confirmatory test. We report the case of a 22 year-old women who suffered from catamenial hemoptysis for 10 months and was treated successfully with a wedge resection of the lesion by video-assisted thoracoscopic surgery(VATS). There was no evidence of recurrence. In conclusion. VATS is a good choice as a for single focus for catamenial hemoptysis.

• Journal of Chest Surgery
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• v.29 no.8
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• pp.905-909
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• 1996

From 1991 to 1994, We performed 75 cases of pulmonary resection. These were divided into two groups according to the method of bronchial stump closure : 51 cases automatic staplers were a plied in 49 patients (Group 1), 24 patients were closed with manual interrupted suture (Group II). Disease entities of the patients were malignant tumor in 33 patients(Group I: Group II, 22· II, bronchiectasis in 23(18:5), benign tumor in 5(3:2), aspergilloma in 5(2:3), tuberculosis(2:1) in 3, bronchogenic cyst in 2 (0 : 2) and so on. Surgical Procedure% for these Patients were 21 Pneumonectomies(18:3), 13 bilobectomies(11:2), 26 lobectomles (14:12), 11 segmentectomies (6:5) and 4 lobectomy with segmentectomies (4:0). In conclusion, the Amount of tube drainage was smaller and the removal of chest tube after surgery was shorter than manual bronchial closure group by means of statistical significance (p=0.047, p=0.005). Although there were no statistical significance, the duration of air leakage was reduced and incidence of bronchopleural rstula was reduced in the stapler used group compared with manual bronchial closure.

• Journal of Chest Surgery
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• v.41 no.5
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• pp.659-662
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• 2008

Video-assisted pulmonary lobectomy was introduced in the early 1990's by several authors, and the frequency of video-assisted thoracic surgery (VATS) lobectomy for lung cancer has been slowly increasing because of its safety and oncologic acceptability in patients with early stage lung cancer However, VATS is limited by 2D imaging, an unsteady camera platform, and limited maneuverability of its instruments. The da Vinci Surgical System was recently introduced to overcome these limitations. It has a 3D endoscopic system with high resolution and magnified binocular views and EndoWrist instruments. We report three cases of da Vinci robot system-assisted pulmonary lobectomy in patients with early stage lung cancer.