• Journal of Korean Neurosurgical Society
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• v.60 no.3
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• pp.315-321
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• 2017

The endoscopic endonasal approach (EEA) has been popularized in adults and has been applied to an expanding range of surgical modules and indications in this population. However, its clinical application in pediatric neurosurgery has been impeded by the differences in anatomical features and the relatively low incidence of diseases to which it is applicable. In this review article, we mainly discuss the surgical indications, feasibility, and complications of EEA for suprasellar lesions in children based on a review of the literature, focusing especially on the age-related anatomical features of the nasal cavity, various pathologic entities, and the impact of EEA on long-term craniofacial growth.

• Journal of Korean Neurosurgical Society
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• v.60 no.3
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• pp.289-293
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• 2017

An exoscope, high-definition video telescope operating monitor system to perform microsurgery has recently been proposed an alternative to the operating microscope. It enables surgeons to complete the operation assistance by visualizing magnified images on a display. The strong points of exoscope are the wide field of view and deep focus. It minimized the need for repositioning and refocusing during the procedure. On the other hand, limitation of magnifying object was an emphasizing weak point. The procedures are performed under 2D motion images with a visual perception through dynamic cue and stereoscopically viewing corresponding to the motion parallax. Nevertheless, stereopsis is required to improve hand and eye coordination for high precision works. Consequently novel 3D high-definition operating scopes with various mechanical designs have been developed according to recent high-tech innovations in a digital surgical technology. It will set the stage for the next generation in digital image based neurosurgery.

• Clinical and Experimental Pediatrics
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• v.50 no.3
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• pp.298-301
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• 2007

Chylothorax is a rare complication following cardiac surgery for congenital heart diseases. Although conservative management is successful in the majority of cases, surgical intervention is required in a refractory one. Recently, subcutaneous or intravenous infusion of octreotide has been used as a safe treatment that helps avoiding surgical intervention. Herein, we report two cases of postoperative chylothorax treated with parenteral octreotide and conservative therapy.

• 한국가시화정보학회:학술대회논문집
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• 2004.12a
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• pp.135-140
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• 2004

Several studies have utilized physical models of the healthy nasal cavity to investigate the relationship between nasal anatomy and airflow. With our experiences of experimental investigations on nasal airflows in normal and abnormal nasal cavity models, we are going to deal with the topic that may contribute to the diagnosis and treatment of nasal diseases. In this paper, airflows in the normal and artificially deformed models, which simulate surgical treatment, are investigated experimentally by PIV. High-resolution CT data and careful surface rendering of computational model with the help of the ENT doctor provide more sophisticated nasal cavity models. The CBC PIV (Correlation Based Correction PIV) algorithm with window offset is used for PIV flow analysis. Average and RMS distributions in sagittal and coronal sections are obtained for inspiratory and expiratory nasal airflows. Comparisons in nasal airflows for both normal and deformed cases are also appreciated. In case of simulations of surgical operations, velocity and RMS distributions in coronal section changes locally, this may cause some difficulties in physiologic functions of noses and may hurt mucosal surface.

• Korean Journal of Veterinary Research
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• v.39 no.1
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• pp.240-246
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• 1999

forty-five claw lamed cows with pododermatitis circumscripta, hyperplasia interdigitalis, and dermatitis verrucosa were treated surgically through resection of necrotic tissues, currettage, antibiotics application, and compressive bandage, under retrograde intravenous regional anesthesia of claw. At 7 days postoperation were showed lameness score 0, absense of swelling of extremitis, without fistulation and purulent exudate in wound. Mean duration time of action of local anesthetic drug was 75 minutes and mean operation time for treatment of pododermatitis circumscripta, hyperplasia interdigitalis, and dermatitis verrucosa was 35 minutes, 20 minutes, and 21 minutes, respectively.

• Korean Journal of Veterinary Research
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• v.56 no.2
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• pp.113-116
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• 2016

Our retrospective study reports the clinical findings and population characteristics of 81 surgically treated dogs for spinal cord compression. We compared the outcome of dogs with different grades of neurological dysfunction due to spinal cord compression and focused on the long-term outcome of surgical treatment, for which there are only a few recent records. We recorded a 13.6% recurrence, regardless of the degree of dysfunction. However, the degree of dysfunction negatively affected the recovery length.

• Journal of Chest Surgery
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• v.5 no.1
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• pp.25-28
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• 1972

Patent ductus arteriosus is one of the most common congenital heart diseases, which treated operatively has excellent results. Treatment by surgical means is common and invariably successful. However,infected PDA cases present problems and surgeons operating must face the possibility of adhesions,aneurysmal dilatation and friabiilty of tissue with tearing of the pulmonary arterial end, especially, which causes a fatal hemorrhagic ccmplication. In the earlier days of cardiac surgery, many surgeons deferred operative treatment infected PDA because of frequent complications, high postoperative morbidity and mortality. This continued until Touroff et al. successfully divided the infected PDA in 1940. In 1944, Harper et aI. have used Cellophane for the wrapping of the infected PDA. This surgical procedure has become a single, simple and safe method for treating infected PDA, since that time. In the Teflon wrapping technique, a cardiothoracic team of Yonsei University Severance Hospital used Teflon felt instead of Cellophane in one case of infected PDA and this method proved intractable to antibiotic treatment for 40 days.

• Journal of Chest Surgery
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• v.47 no.1
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• pp.39-42
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• 2014

It is expected that the stent graft will become an alternative method for treating aortic diseases or reducing the extent of surgery; therefore, thoracic endovascular aortic repair has widened its indications. However, it can have rare but serious complications such as paraplegia and retrograde type A aortic dissection. Here, we report a surgical repair of retrograde type A aortic dissection that was performed after thoracic endovascular aortic repair.

• The Korean Journal of Pain
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• v.2 no.1
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• pp.45-48
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• 1989

Trigeminal neuralgia is one of the diseases which cause most chronic and intractable pain on the facial area. Several drugs includding analgegics, anticonvulsants, tranquilizers, vitamins or hormonal preparations have been expected to be effective but no drug could effectively relieve the patients from the pain. The pain could be relieved by surgical neurectomy or neurolysis of the Gasserian ganglion or the involved branches with absolute alcohol alternatively. Surgical microvascular decompression may be performed if the pain resulted from compression of the nerve by adjucent arterial loops. 4 cases of trigeminal neuralgia are presented. They were treated with alcohol neurolysis of the involved peripheral nerves combined with or without carbamazepine and/or amitriptyline with favorable result of pain relief.

• Journal of Chest Surgery
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• v.49 no.5
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• pp.405-407
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• 2016

Tracheal diverticulum is often diagnosed incidentally and, due to its rarity, there is no standard treatment. It is a benign entity, but has the potential to cause specific symptoms, such as chronic upper respiratory infection and chronic cough. Symptomatic tracheal diverticulum can be medically treated, but likelihood of recurrence is high. We report a case of surgical resection of symptomatic tracheal diverticulum to prevent recurrence.