• Journal of Chest Surgery
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• v.48 no.1
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• pp.78-81
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• 2015

This study reports our early experience with thoracoscopic division of vascular rings. Three patients were reviewed; their ages at surgery were 25 months, 4 years, and 57 years. All patients were suffering from complete vascular rings involving combinations of the right aortic arch, left ligamentum arteriosum, Kommerell's diverticulum, and retroesophageal left subclavian artery. The median surgical time was 180.5 minutes, and the patients showed immediate recovery. Three complications, namely chylothorax, transient supraventricular tachycardia, and left vocal cord palsy, were observed. Our early experience indicates that thoracoscopic division of a vascular ring may provide early recovery and could be a promising operative choice.

• Journal of Chest Surgery
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• v.54 no.4
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• pp.235-238
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• 2021

The establishment of minimally invasive surgery is a complex and difficult task. Video-assisted thoracic surgery (VATS) refers to a minimally invasive surgical technique that represents a less invasive approach to thoracic surgery using thoracoscopy. For lung cancer or esophageal cancer surgery, planning and establishing a team for minimally invasive surgery for the first time is not a simple task. Technical advances in surgical devices and the enhanced skill of surgeons are cornerstones of the development of minimally invasive surgery. Here, we review the meaning of minimally invasive thoracic surgery and discuss how to establish a team approach for VATS procedures.

• Journal of Chest Surgery
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• v.54 no.3
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• pp.224-227
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• 2021

Here, we report the rare case of a 13-year-old girl with a congenital diaphragmatic hernia (also known as Bochdalek hernia), which was revealed to be an extralobar pulmonary sequestration that was treated using laparoscopic and video-assisted thoracic surgery sequestrectomy and repair of the diaphragm defect after detection of a supradiaphragmatic mass connected with the retroperitoneum. The patient showed no postoperative complications at a 1-month follow-up examination.

• Journal of Chest Surgery
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• v.56 no.4
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• pp.286-289
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• 2023

A 58-year-old woman presented with an incidental asymptomatic mass occupying the entire right lower thorax. A radiologic study demonstrated a huge cystic mass, initially suggestive of an exophytic echinococcal cyst. After unsuccessful catheter drainage, the patient was referred for surgery, and curative resection of the lung-, heart-, and diaphragm-compressing mass was performed under video-assisted thoracoscopic surgery. Culture studies revealed no growth of parasitic, bacterial, or fungal infections, and the final pathological result confirmed a primary pleural cyst. Thoracic cystic masses mostly manifest as bronchogenic or pericardial cysts, while primary pleural cysts have rarely been reported. We present a rare case of a huge pleural cyst that initially mimicked an echinococcal cyst.

• Journal of Chest Surgery
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• v.54 no.4
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• pp.294-301
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• 2021

Recent case series and meta-analyses have suggested that robot-assisted minimally invasive esophagectomy (RAMIE) could be a useful alternative to video-assisted thoracic surgery esophagectomy. The advantages of RAMIE are a 3-dimensional view, 7 degrees of freedom, and tremor filtering, which enable more meticulous lymph node dissection with a lower incidence of complications. However, in radical esophagectomy, understanding the concepts of the fascia and compartment is crucial for successful and reliable dissection. The first RAMIE in Korea was performed by our team in July 2006, and since then, we have developed related techniques to achieve better short- and long-term outcomes. The key step in RAMIE for esophageal squamous cell carcinoma is dissection of the upper mediastinum due to the difficulty of lymph node dissection and the high incidence of nodal metastasis in the area. Herein, we describe the technique of fascial plane dissection with esophageal suspension during RAMIE.

• Proceedings of the KIEE Conference
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• 2007.04a
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• pp.17-19
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• 2007

This paper describe an interactive video object segmentation tool which can be used to generate MPEG-4 video object planes for multimedia broadcasting and enables content based functionalities. In order to apply these functionalities, each frame of video sequence should be represented in terms of video objects. Semiautomatic segmentation can be thought of as a user-assisted segmentation technique. A user can initially mark objects of interest around the real object boundaries. Then the user-guided and selected objects are continuously separated from the unselected areas though time evolution in the image sequences. We proposed method shows very promising result and this encourages the development of object based video editing system.

• Journal of Chest Surgery
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• v.48 no.2
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• pp.155-155
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• 2015

• Proceedings of the KOR-BRONCHOESO Conference
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• 2010.03a
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• pp.9-15
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• 2010

비디오 종격동경을 이용한 수술은 좁은 시야와 제한된 수술 기구의 이용으로 수술 적응증의 폭넓은 확대가 어렵지만, 종격동, 폐, 흉막 질환에서 진단 혹은 치료 방법의 하나로서 중요한 영역을 확보하고 있다.

• Journal of Chest Surgery
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• v.47 no.4
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• pp.384-388
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• 2014

Background: Recently, single-port video-assisted thoracic surgery (VATS) has been proposed as an alternative to the conventional three-port VATS for primary spontaneous pneumothorax (PSP). The aim of this study is to evaluate the early outcomes of the single-port VATS for PSP. Methods: VATS was performed for PSP in 52 patients from March 2012 to March 2013. We reviewed the medical records of these 52 patients, retrospectively. Nineteen patients underwent the conventional three-port VATS (three-port group) and 33 patients underwent the single-port VATS (single-port group). Both groups were compared according to the operation time, number of wedge resections, amount of chest tube drainage during the first 24 hours after surgery, length of chest tube drainage, length of hospital stay, postoperative pain score, and postoperative paresthesia. Results: There was no difference in patient characteristics between the two groups. There was no difference in the number of wedge resections, operation time, or amount of drainage between the two groups. The mean lengths of chest tube drainage and hospital stay were shorter in the single-port group than in the three-port group. Further, there was less postoperative pain and paresthesia in the single-port group than in the three-port group. These differences were statistically significant. The mean size of the surgical wound was 2.10 cm (range, 1.6 to 3.0 cm) in the single-port group. Conclusion: Single-port VATS for PSP had many advantages in terms of the lengths of chest tube drainage and hospital stay, postoperative pain, and paresthesia. Single-port VATS is a feasible technique for PSP as an alternative to the conventional three-port VATS in well-selected patients.

• Journal of Chest Surgery
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• v.43 no.6
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• pp.669-674
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• 2010

Background: Spontaneous hemopneumothorax is characterized by the accumulation of air and more than 400 mL of blood in pleural cavity without any apparent cause. It is a rare disease and can cause life-threatening situation. We analyzed clinical reviews of two medical centers to aid in optimal management. Material and Method: Retrospective review between March 2003 and August 2010 with 18 spontaneous hemopneumothorax patients was made. Result: These 18 patients were comprised of 15 male and 3 female with average 24.6 years (range 15~46 years). Almost patients (16) underwent a closed thoracostomy initially and 15 patients received video-assisted thoracic surgery (VATS). Mean postoperative chest tube removal was 2.9 days and one complication was post-removal pneumothorax. During the follow-up periods there were no other complications and recurrence. Conclusion: Proper initial diagnosis and management of spontaneous hemopneumothorax prevent significant hypovolemic shock. Video-assisted thoracic surgery should be considered an early surgical management in spontaneous hemopneumothorax. However conservative manage without bleb excision may be effective in selected patients.