• Journal of Chest Surgery
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• v.43 no.2
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• pp.168-171
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• 2010

The number of cases of extracorporeal membrane oxygenation (ECMO) has rapidly increased all over Korea since the introduction of peripheral cannulation catheters. However, the application of ECMO to children has been limited due to the shortage of pediatric equipment and difficulty in maintaining an ECMO system with peripheral cannulation. For this reason, there have been only few reports of pediatric ECMO in Korea, and most of them pertained to the veno-arterial type ECMO for supporting the cardiac system in postcardiotomy patients. We report here on the successfully performing veno-venous ECMO, with using a double lumen percutaneous catheter, in a child with acute respiratory distress syndrome.

• Korean Journal of Ichthyology
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• v.27 no.1
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• pp.26-32
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• 2015

The histological structure of the heart in Pseudorasbora parva was investigated by light microscope. The heart consisted of four consecutive chambers, the sinus venosus, atrium, ventricle and bulbus arteriosus. The wall of the sinus venosus was divided into endocardium, myocardium and epicardium, and the walls of the atrium and ventricle were divided into endocardium, subendocardium, myocardium, subepicardium and epicardium, and the wall of the bulbus arteriosus was divided into endocardium, subendocardium (ridge tissue), middle layer, subepicardium and epicardium. The valves were observed in the sinoatrial, artrioventricular and bulboventricular junctions. The sinus venosus wall was mostly made up of collagen. The rings of tissue were observed at the sinoatrial junction. The atrium was composed of a spongy trabeculate myocardium surrounded by an external rim of thin myocardium, and collagens were distributed in the subepicardium and trabeculae. The ventricle was a spongy myocardium with vessels in subepicardium. In the subepicardium and trabeculae of the ventricle, collagens were distributed. In the bulbus arteriosus, the diameter and length of the ridges were differed. The endocardial cells were convex and the non-clustered subendocardial cells showed irregular shapes. The cells of the middle layer were arranged into incomplete layers that showed different orientations. The subepicardium was formed by cells of different morphology. Collagens and elastins were demonstrated in the subendocardium, middle layer and subepicardium of the bulbus arteriosus. The epicardium was a single layer composed of flattened cells.

• Journal of Veterinary Clinics
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• v.27 no.5
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• pp.600-604
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• 2010

A ten-year-old female mongrel dog was presented to Veterinary Medical Center, Chungbuk National University with the signs of anorexia, weakness, and hemoglobinuria. Patient had been diagnosed as dirofilariasis based on heartworm antigen test and treated with adulticide (melarsomine) at local hospital one day before admission. On laboratory examinations, there were hypochromic and microcytic regenerative anemia, thrombocytopenia, moderate neutrophilia, and increase ALT, AST, and ALP. Radiographic exam showed main pulmonary artery bulging, pulmonary infiltration and hypervascularity, reduced abdominal serosal detail and mild hepatomegaly. Abdominal ultrasonographic exam showed mild peritoneal effusion and large hyperechoic thrombi at trifurcation of the porta hepatica and the splenic vein. In addition, intraluminal low density area and intravascular filling defect were confirmed on contrast enhanced CT scanning at the same anatomic locations. Patient was treated with anticoagulant and thrombolytic therapy. On day 42 after treatment, complete resolution of thrombi was confirmed via ultrasonography and improvement of clinical signs was observed.

• Journal of Veterinary Clinics
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• v.21 no.2
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• pp.219-228
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• 2004

Heart diseases related to conduction system can be occurred by primary defects in conduction system and by secondary to morphological heart diseases or drug toxicities. Multiple molecular defects responsible for arrhythmogenesis, including mutations in ion channels, cytoplasmic ion-channel-interacting proteins, gap-junction proteins, transcription factors and a kinase subunit, were found to be associated with the aetiology of primary cardiac conduction defects, especially inherited form. Despite a big progress in unveiling human arrhythmogenesis, conduction defects in dog has not been well studied except sudden death syndrome in German shepherd. In this review, molecular genetics in cardiac arrhythmogenesis, inherited human diseases associated with conduction defects and similar diseases in dogs will be discussed.

• Journal of Chest Surgery
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• v.43 no.6
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• pp.764-768
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• 2010

Phlebectasia of the venous system of the upper limb is very rare and it does not have a well-defined etiology. Phlebectasia means isolated fusiform or saccular dilatation of the venous system and isolated phlebectasia of the forearm may present as a painless cosmetic deformity or it may cause pain, decreased range of movement, compression on adjacent structures, bleeding, thrombosis and consumptive coagulopathy. We report here on a case of isolated phlebectasia of the forearm and we briefly review the relevant literature.

• Journal of Chest Surgery
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• v.36 no.3
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• pp.202-205
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• 2003

Deep vein thrombosis (DVT) is a common disease. However, May-Thurner syndrome, which is the cause of DVT, is an uncommon processes in which there is an impaired venous return due to compression of the left iliac vein by the overlying right common artery. This condition results in a left iliofemoral deep thrombosis and severe leg edema. It is, therefore, called iliac compression syndrome. Catheter-directed thrombolytic therapy of acute extensive iliofemoral DVT and balloon angioplasty with venous stenting are recommended. Two cases with history of left leg swelling are diagnosed as May-Thurner syndrome, which was demonstrated by venography. We successfully treated the patients with thrombolysis, balloon angioplasty, and stent insertion at the site of common iliac vein compression. Therefore, we report the cases with overall review of the literature.

• Journal of Chest Surgery
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• v.34 no.9
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• pp.711-715
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• 2001

Background: Deep venous thrombosis(DVT) is a curable disease when it is appropriately treated in the early stages of onset. The long term follow up of chronic DVT shows poor prognosis with serious complications such as venous valvular insufficiency, venous claudication, venous ulcer and leg swelling. Thrombolytic therapy is a very active treatment that delivers thrombolytic agents via catheter to the target thrombi. The aim of this study is to evaluate the effect of catheter directed thrombolysis using urokinase to acute DVT. Material and Method: We studied 5 patients, who were diagnosed as acute DVT and had no contraindication for selective hemolysis using urokinase. Result: All the patients were successfully recanalized. Total infusion time of urokinase was 2.0$\pm$0.6 days, and the amount was 5.9$\pm$2.45 million IU. In 4 patients, who were diagnosed as May-Therner syndrome, we performed the balloon angioplasty and inserted the stent at the stenotic portion. There were minor complications such as hematuria, hematoma at puncture site, and all of them are self limited. Conclusion: Catheter induced thrombolysis is an effective treatment in acute DVT.

• Journal of Chest Surgery
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• v.34 no.11
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• pp.883-886
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• 2001

Mediastinal fibrosis is uncommon but may result in entrapment and erosion of vital mediastinal structures by fibrous tissues. Idiopathic mediastinal fibrosis involved esophagus is very rare, and only a few cases have ever been reported. Such idiopathic mediastinal fibrosis involved esophagus is an enigmatic inflammatory fibrous tissue proliferation, but the treatment has not yet been clearly defined. We had successfully treated in such a case with partial esophagolysis and esophagomyotomy.

• Journal of Chest Surgery
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• v.35 no.11
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• pp.817-821
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• 2002

There are various surgical techniques in repairing Ebstein anomaly, but residual tricuspid regurgitation and compromized right heart function may ensue in some cases. We report our clinical experience of Ebstein anomaly and atrial flutter in a 19-year-old male patient who underwent simple modified tricuspid annuloplasty, hi-directional cavopulmonary shunt and cryoablation of cavotricuspid isthmus.

• Journal of Chest Surgery
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• v.40 no.5 s.274
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• pp.388-391
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• 2007

Subclavian catheter insertion is now widely used because of its technical feasibility and effectiveness, but some complications related to this procedure have been noted. We present here a rare surgical case of post central line insertion mediastinitis with no mechanical complication.