• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.39 no.1
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• pp.27-30
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• 2013

Dental implantation in the mandibular anterior region is considered a safe and reliable surgical procedure. On the other hand, several articles have reported that inadvertent hemorrhage of the sublingual artery can result in life-threatening airway obstruction. Surgical ligation under intubation or tracheostomy is the most widely used approach for controlling mouth floor bleeding in this highly vascular region. Nonetheless, surgically exploring the bleeding focus is difficult because of anatomical distortion followed by widespread edema and swelling. Since swelling of the mouth floor advances quickly, timely management is essential for favorable postoperative outcome. This paper reports a case of immediate hemorrhage control with angiographic embolization to perform rapid hemostasis before the ongoing swelling causes airway obstruction. Less invasive, angiographic embolization can prevent neurovascular damage during a surgical exploration of injured vascular structures on the mouth floor.

• Journal of International Society for Simulation Surgery
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• v.2 no.2
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• pp.71-75
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• 2015

To overcome limitations of conventional diagnosis and planning for orthognathic surgery, surgeons have begun to use 3-dimensional (3D) virtual simulation to plan complex orthognathic surgery. In many literatures, it has shown that better surgical outcome achieved with 3D virtual simulation than that with conventional methods. But, there is still lack of data about accuracy of maxillary segmental surgery with 3D virtual simulation. The purpose of this paper was to report the case of maxillary segmental orthognathic surgery with 3D virtual simulation and to assess the actual surgical outcome. Though the result was clinically acceptable, discrepancy between 3D simulation and actual surgery was not superior compared with conventional method. The accuracy of 3D simulation surgery and intermediate wafer fabrication for maxillary segmental surgery needs to be improved. Advancement in 3D software program and careful surgical technique will make it more precise and reliable method.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.16 no.1
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• pp.53-60
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• 2013

In Crohn's disease, mild gastrointestinal bleeding often occurs; however massive gastrointestinal hemorrhage, which can have a dramatic effect on a patient's vital sign, is rare. This could result in potentially life-threatening complications, which can lead to death. Massive hemorrhagic Crohn's disease is not well known and for this reason, they are a diagnostic and therapeutic challenge. Various diagnostic and therapeutic methods are currently being developed and used. The surgical method is often used only as a last measure since this approach has the risk of serious complications that may endanger patients. However, if massive bleeding continues even after all therapeutic methods are used, the surgical method must be implemented. In this case, all therapeutic methods were found to be ineffective; therefore, surgery was used as a last option. Ultimately, the surgical method was found to be successfully used to treat life-threatening hemorrhagic Crohn's disease.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.24 no.2
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• pp.83-87
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• 2013

The term "phonosurgery," coined in the early 1960s, refers to surgical procedures that maintain, restore, or enhance the human voice. Phonosurgery includes phonomicrosurgery (endoscopic microsurgery of the vocal folds), laryngoplastic phonosurgery (open-neck surgery that restructures the cartilaginous framework of the larynx and the soft tissues), laryngeal injection (injection of medications as well as synthetic and organic biologic substances), and reinnervation of the larynx. Phonomicrosurgery is a means of maximally preserving the layered microstructure of the vocal fold, that is, the epithelium and lamina propria. The purpose of the surgery is usually to improve the vibratory characteristics of the layered microstructure of the vocal folds. Phonomicrosurgery has developed from convergence of microlaryngoscopic surgical technique theory and the mucosal wave theory of laryngeal sound production. Improvements in technology (i.e., laryngoscopes, handled instruments, and lasers), which in part arise from developments in more frequently performed minimally invasive surgical procedures, will probably facilitate the next generation of procedural innovations. The best methods of optimizing phonosurgical outcomes include making an accurate diagnosis, completing a comprehensive voice evaluation, providing sufficient preoperative therapy, carefully selecting patients to undergo phonomicrosurgical procedures, and requiring sufficient postoperative rest and therapy. Phonomicrosurgery will continue to evolve as a result of the interdependent collaboration of surgeons with voice scientists, speech pathologist, and other voice professionals.

• Journal of Chest Surgery
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• v.28 no.10
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• pp.906-911
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• 1995

From January 1991 to January 1995, 11 patients with aortic diseases underwent various surgical repairs. The age at operation ranged from 26 years to 63 years[ mean=50.9 years . The disease entities included 8 aortic dissections[ type I in 4, type II in 2 and type III in 2 cases , 2 Marfan`s syndrome with annuloaortic ectasia and 1 desecending thoracic aortic aneurysm The operative procedures we tried were 3 Bentall`s operation, 5 graft replacement of ascending aorta, and 3 graft interposition in descending thoracic aorta.Overall hospital mortality rate is 36.3%[4/11 . And causes of death are pump weaning failure in 2 cases and multiorgan failure in 2 cases. It was that 2 sternal dehiscence & mediastinitis, 1 acute renal failure, 2 hypoxic brain damages and 2 postoperative psychosis were complicated. Recently we tried surgical repair of aortic dissection five out of 6 cases using total circulatory arrest with deep hypothermia at 14$^{\circ}C$. Total circulatory arrest time ranged from 18 to 26 minutes[ mean 22.2 minutes , and mean aortic cross-clamping time was 48.2 minutes. One of 5 patient died on the 7th postoperative day due to multiorgan failure. Mortality of patients with TCA was 20%[1/5 , and it of remainders was 50%[3/6 . Our result for surgical repair using total circulatory arrest with deep hypothermia is satisfactory on the basis of our clinical data.

• Journal of Chest Surgery
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• v.33 no.3
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• pp.245-251
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• 2000

Backround: Pulmonary aspergilloma is a potential life-threatening disease resulting from massive hemoptysis. Pulmonary aspergilloma has been treated surgically for many years, however, it has also had higher risk of mortality and complication rate. The purpose of this study is to analyze the operative methods and the types of complications. Material and Method: Sixty patients who underwent surgical resection for pulmonary their medical reconrds. Result: The mean age was 46.3$\pm$13.4 years(range 20 to 76 years). The most common clinical presentation was hemoptysis which occurred in 48 patients(80%). Pulmonary tuberculosis was the most common pre-existing disease, occurri9ng in 28 patients(46.7%). The other associated lung diseases were bronchiectasis(n=11), silicosis(n=2), and chronic pnumonia(n=1). Operative proceudres wer lobectomy in 35 patients, pneumonectomy in 6, segmentectomy in 5, lobectomy and thoracoplasty in 3, segmentectomy and thoracopasty in 1, and cavernostomy in 10. The operative mortality was 6%(n=3) in lung resection patients but 0% in cavernostomy patients. The most common complications were prolonged air leakage, wound infection and postoperative bleeding. Conclusion: In most cases of pulmonary aspergilloma surgical resectin remains the only effective therapy. However, cavernostomy may be more effective for pulmonary aspergilloma patients with decreased pulmonary functions and for patients with high risk for lung resection.

• Journal of Korean Neurosurgical Society
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• v.52 no.5
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• pp.501-504
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• 2012

Objective : To report our surgical experience using in situ end-to-side bypass for giant serpentine distal anterior cerebral artery aneurysm, unsuitable for microsurgical clipping. Methods : A 49-year-old woman presented with headache and intermittent loss of consciousness. The brain computed tomography scan revealed a partially calcified mass in the interhemispheric fissure. On cerebral angiography, that was giant ($30{\times}18mm$ sized), serpentine aneurysm originating from the A2 to A3 segment of the distal anterior cerebral artery (DACA). The aneurysm was trapped with clips, and the right A3 segment to left A3 segment of DACA, end-to-side in situ bypass was performed. Surgical result was favorable, with no newly developed ischemic event in the acute recovery period. Postoperative angiography showed total occlusion of the aneurysm and good patency, with preserved distal flow. Conclusion : Giant fusiform aneurysms of the DACA are extremely rare and can be particularly challenging to treat. End-to-side A3 : A3 bypass with aneurysm trapping could be a treatment modality for these locations.

• Journal of Korean Foot and Ankle Society
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• v.10 no.2
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• pp.179-183
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• 2006

Purpose: To review the results of surgical treatment for superficial peroneal and sural nerve lesion unrelated to laceration. Materials and Methods: Eleven superficial peroneal and sural nerve lesions in eleven patients were surgically treated at our hospital with follow up of average 20.7 months (range, 9-64 months). The anatomical locations of the lesion were on superficial peroneal nerve in seven patients including two patients having ganglion and sural nerve in four patients. Two patients were male and the average age at surgery was 41.5 years (range, 23-57 years). Six cases developed after repetitive sprain and five cases had no trauma history. Clinical results were assessed according to the criteria of Pfeiffer and Cracchiolo. Results: The methods of operation were proximal resection of the nerve lesion in nine cases and removal of ganglion only in two cases. The results were excellent in four cases, good in five cases, fair in one case and poor in one case. Ten cases (10 patients) were satisfied with the result of treatment. Conclusion: We can expect satisfactory results of surgical treatment for superficial peroneal and sural nerve lesion unrelated to laceration.

• Archives of Plastic Surgery
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• v.32 no.6
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• pp.796-797
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• 2005

In plastic and reconstructive craniomaxillofacial surgery, careful preoperative planning is essential to get a successful outcome. Many craniomaxillofacial surgeons have used imaging modalities like conventional radiographs, computed tomography(CT) and magnetic resonance imaging(MRI) for supporting the planning process. But, there are a lot of limitations in the comprehension of the surgical anatomy with these modalities. Medical models made with rapid prototyping (RP) technique represent a new approach for preoperative planning and simulation surgery. With rapid prototyping models, surgical procedures can be simulated and performed interactively so that surgeon can get a realistic impression of complex structures before surgical intervention. The great advantage of rapid prototyping technique is the precise reproduction of objects from a 3-dimensional reconstruction image as a physical model. Craniomaxillofacial surgeon can establish treatment strategy through preoperative simulation surgery and predict the postoperative result.

• Journal of Chest Surgery
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• v.19 no.3
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• pp.385-390
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• 1986

Empyema is a severe infection encountered in the pediatrics. With advance of the antibiotics and chemotherapeutics, there was a marked decrease in number of empyema. Empyema complicated by staphylococcal pneumonia in infant and children has been distressing problem, and the management of this complication has been discussed repeatedly in the past. In Korea, tuberculous empyema is also troublesome. If empyema is localized within thick capsule, tube thoracostomy and closed drainage alone is unacceptable, and early open thoracotomy to eliminate the empyema has proved good result. A clinical analysis of 39 patients with thoracic empyema was done. They were managed surgical intervention at Dept. of Thoracic & Cardiovascular Surgery at Kyung-Hee University Hospital from Jan. 1974 to December, 1984. 1. Age and sex distribution, infancy 9, early childhood 11. late childhood 9, puberty 10. The male to female ratio was 21:18. 2. The highest seasonal incidence was winter [21 cases]. 3. Cardinal symptoms were cough [76%], fever and chill [66%], and dyspnea [40%]. 4. The location of the empyema was right in 27 cases [69%] and 12 cases in left side. 5. The most frequent lesion to predisposing factor was pneumonia [67%]. 6. The commonest organism was Staphylococcus aureus in 15 [38%] cases, and Mycobacterium tuberculosis in 10 cases [26%]. 7. The surgical treatment was performed in all patients. The surgical procedure was closed tube thoracostomy in 25 cases [64%], decortication in 7 cases [18%], pulmonary resection in 4 cases [10%], and decortication with curettage in 2 cases. 8. One patient died from sepsis complicated by lymphoma and in one patient bronchopleural fistula was developed postoperatively.