• Journal of Veterinary Clinics
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• v.26 no.6
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• pp.563-567
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• 2009

This study compared the instrument performance and tissue healing of a steel scalpel with a $CO_2$ laser in an animal uterine surgery model. Five Landrace and Yorkshire mixed breed pigs were used. Two symmetrical incisions were made in the uterine of each pig. One incision was made on the left side of the uterine horn using a steel scalpel, while the other incision was performed on the right side using a $CO_2$ laser with an 8W output power. Each instrument was evaluated clinically for speed, ease of incision, and extent of bleeding. An ovariohysterectomy was performed at 21 days after the surgical procedure for a histological examination. The scalpel was an easier instrument to use in the confines of the uterine tissue, compared with the laser. However, there is no significant difference between the two groups. The amount of bleeding was less in the laser group but the time of the incisions was shorter with the scalpel. Postoperative uterus adhesion in the $CO_2$ laser incisions was lower than the scalpel incisions. Scalpel incisions showed complete restoration of the epithelium and endometrial gland. On the other hand, the laser incisions showed incomplete restoration of the epithelium and endometrial gland. Although the scalpel produced less damage to the uterine tissue and was easier to handle than the $CO_2$ laser, it did not provide hemostasis that was helpful for use on highly vascular tissue. The $CO_2$ laser provided good hemostasis but delayed wound healing.

• Korean Journal of Head & Neck Oncology
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• v.7 no.1
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• pp.52-56
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• 1991

인체에서 발견되는 전체 신경초종중 $25{\sim}40%$가 두경부에서 발견되나 경부미주신경의 신경초종은 매우 희귀하여 1988년까지 영문문헌상 88 예가 보고되어 있다. 임상적으로 경부종괴가 주증상이며 때로는 애성, 종괴촉지시 기침 혹은 방사통, parapharyngeal space 의 종괴성장으로 연하곤란등이 초래되기도 한다. 치료는 종괴의 완전적출과 미주신경의 기능을 보존시키는 것이 주요 목표로 되어 있다. 저자들은 최근 5년간 4 예의 정부미주신경외 신경초종을 경험하였는데, 3 예는 측경부의 상부에, 1예는 측경부의 하부에 발생한 것이었다. 연령은 25세에서 50세까지 성인연령이었고, 성별은 남자 l 예, 여자 3 예이었다. 내원시 주소는 전예가 무통성 경부종괴이었으며, 종괴의 크기는 직경 3cm에서 10cm까지 다양하였다. 전예에서 종괴로 인한 신경학적 증상은 없었으나, 1 예에서 parapharyngeal space 의 거대종괴 때문에 다소간의 연하곤란이 있었다. 2 에에서는 종괴촉지시 기침이 유발됨을 호소하였다. 수술은 경부횡절개로 흉쇄유돌근을 제치고 총경 동맥과 내경정맥을 종괴의 상하부위가 완전히 노출되도록 박리한 후 종괴의 피막을 미주 신경의 주행방향에 따라 절개하여 적출 (enucleation) 하였다. 적출술시 종괴가 유착되어 있는 피막 부위는 동시에 절제하되 미주신경의 신경경로 (neural pathway) 는 유지되도록 하였다. 수술직후 2 예에서 일시적 애성을 호소하였다, 추적은 최단 20 개월에서 최장 80 개월까지 하였는데 일시적 애성은 호전되었고 전예가 재발없이 건강하게 지내고 있었다. 따라서 본 종양수술은 종양적출술시 이환된 미주신경의 절단을 결정하기 전에 신경경로를 유지시킬 수 있는 적출술 (enucleation) 을 먼저 고려하는 것이 바람직하다고 사료되었다.

• Journal of The Korean Ophthalmological Society
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• v.59 no.11
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• pp.1082-1086
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• 2018

Purpose: To report a case of a 60-year-old female with rhegmatogenous retinal detachment, presenting with suprachoroidal hemorrhage after vitrectomy. Case summary: A 60-year-old woman visited our clinic complaining of floaters, flashing, and blurred vision. Best-corrected visual acuity was 0.1 in her left eye, and fundus examination of her left eye revealed macula-involved retinal detachment with a retinal break at the superotemporal quadrant. She underwent cataract surgery, 23-gauge transconjunctival sutureless vitrectomy, and 14% C3F8 gas tamponade under general anesthesia. One hour after anesthesia recovery, she suddenly complained of severe pain in her left eye. The intraocular pressure measured after removal of the pressure patch from her left eye was as high as 58 mmHg. Her ocular pain improved spontaneously within 10 minutes, and the intraocular pressure decreased to 8 mmHg. Fundus examination of her left eye revealed a reddish-brown raised lesion, suggesting suprachoroidal hemorrhage. She was placed in a prone position with a pressure patch over her left eye. Bleeding through the sclerotomy site was observed 1 day after surgery. Subsequently, hemorrhagic choroidal detachment of her left eye continued to decrease without deterioration. Three weeks after surgery, the patient received an intravitreal injection of 100% C3F8 gas into her left eye. At 3 months after surgery, best-corrected visual acuity had improved to 0.8 in her left eye, and the retina was stable. Conclusions: Suprachoroidal hemorrhage may be suspected in a patient complaining of severe ocular pain after vitrectomy.

• Journal of Chest Surgery
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• v.31 no.2
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• pp.186-189
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• 1998

Malignant mesenchymoma is a very rare tumor presented during the embryonic and infant period and malignant mesenchymoma in the adult is extremely rare. Tumor is composed of two or more unrelated mesenchymal derivatives apart from fibrous tissue. These tumors are thought to be originated from embryonic mesenchyme capable of differentiating into any type of connective tissue. A 61 years old man with complaints of cough and copious sputum of onset of two months was admitted after initial examinations, showing a very huge mass over the right upper lobe. Right pneumonectomy with partial rib resection of 3rd, 4th, and 5th ribs was performed due to the initial diagnostic impression of squamous cell carcinoma by the fine needle aspiration biopsy. The operative field presented a mass locating across the interlobal fissure with severe adhesions to the chest wall. Postoperatively, the patient received 5,000 rads of radiotherapy and presently, 6 months later, has shown no signs of recurrence.

• Journal of Dental Rehabilitation and Applied Science
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• v.27 no.2
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• pp.233-245
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• 2011

With the use of computed tomography (CT), computer-aided design/computer-assisted machining (CAD/CAM) technology and internet, the implant dentistry has been evolved. The surgical templates made by CAD/CAM technology and precise installation of implants, permit restorations to be inserted immediately after implants have been placed. The advantages of CAD/CAM guided implant procedures are flapless, minimally invasive surgery and shorter surgery time. With this technique, less postoperative morbidity and delivery of prosthesis for immediate function would be possible. A patient with an edentulous maxilla and mandible received 7 implants in mandible using CAD/CAM surgical templates. Prefabricated provisional fixed prostheses were connected immediately after implant installation. Provisional prostheses were evaluated for aesthetics and function during 6 months. Definitive prostheses were fabricated. At 6 months recall appointment, patient's occlusion was slightly changed. To prevent additional adverse effect, regular check-up and occlusal adjustment would be needed.

• Journal of Chest Surgery
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• v.36 no.7
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• pp.497-503
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• 2003

Pulmonary aspergillosis usually results from the colonization of the existing lung lesions by chronic pulmonary diseases, such as tuberculosis. Most cases of pulmonary aspergilloma have been treated surgically for many years because it is a potentially life-threatening disease causing massive hemoptysis. Here we reviewed our results from the last 10 years. Material and Method: We reviewed 31 cases surgically treated from Aug. 1992 to Jul. 2002. retrospectively. This investigation is designed to illustrate the peak age incidence, sex ratio, chief complaints, preoperative study, anatomic location of operative site, postoperative pathologic finding and postoperative complications. Result: The peak age Incidence laid in the 3rd and 4th decade of 20 cases (64.5%). The most common complaint was hemoptysis in 27 cases (87.1%). The 31 cases had a history of treatment with anti-tuberculous drugs under impression of pulmonary tuberculosis. The 19 cases (61.3%) showed the so-called “Air-meniscus sign” on the preoperative chest X-ray. In the 31 cases (100%) on the chest computed tomography. as a preoperative diagnostic modality, positivity was shown in 37.9%, 83.3% was shown on the fungus culture of sputum for Aspergillus, serum immunodiffusion test for A. fumigatus, respectively. The anatomical location of aspergilloma was mainly in the upper lobe in 19 cases (61.3%) and the majority of cases were managed by lobectomy. The postoperative pathologic findings showed that 31 cases (100%) were combined with tuberculosis. The postoperative complications include empyema, prolonged air leakage, remained dead space, postoperative bleeding and these numbers of cases is 3 cases (9.7%), 2 cases (6.45%), 2 cases (6.45%), 1 case (3.23%), respectively. one case was died postoperatively due to massive beeding, and asphyxia. Conclusion: Compared with the previous study, there is no significant difference in results. Preoperative chest computed tomography and immunodiffusion test were more commonly available and showed high positivity. Operations often became technically difficult because of pleural space obliteration, indurated hilar structures, and poor expansion of the remaining lung, which were more prominent in the patients with complex aspergillosis. In such cases, medical treatments and interventional procedures like bronchial artery embolization are preferred. However, cavernostomy is also recommanded with few additional morbidity because of its relatively less invassiveness. Early surgical intervention is the recommended management for patients with simple aspergilloma considering the Row surgical mortality and morbidity in recent days.

• Journal of Chest Surgery
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• v.32 no.4
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• pp.347-352
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• 1999

Background: The atrial fibrillation in patients with mitral valvular heart disease is frequently converted to sinus rhythm after the mitral valve surgery. This sinus restoration implies an important meaning in that it not only helps postoperative convalescence in patients with unstable hemodynamics but also reduces the rate of postoperative thromboembolism. Material and Method: We retrospectively analyzed 184 patients who received mitral valve surgery from June 1986 to December 1996 to investigate the trend of rhythm change following mitral valve surgery and thus to clarify the predisposing factors of postoperative sinus rhythm conversion and its maintenance. Result: The sinus rhythm was restored after the operation in 54 out of 139 patients with atrial fibrillation preoperatively(38.8%). However, the atrial fibrillation recurred in 41 patients at the time of discharge showing a recurrence rate of 75.9 percent. The mean duration of sinus rhythm in patients with eventual atrial fibrillation recurrence was 8.2${\pm}$5.9 days. Only 15 patients were in sinus rhythm at the time of late follow-up with the mean follow-up period of 84.4${\pm}$34.7 months. While the age, duration of symptoms, duration of atrial fibrillation, left atral size, and pulmonary artery pressure were thought to be the predisposing factors for sinus conversion after the operation, only the duration of atrial fibrillation and ejection fraction were considered risk factors for the recurrence of the atrial fibrillation following sinus conversion. Conclusion: This study suggests that the early operation is mandatory for the satisfactory result regarding postoperative rhythm. Moreover, additional operative measure in adjunct to the intervention of mitral valve should be considered for the maintenance of restored sinus rhythm as reflected by high postoperative recurrence rate of atrial fibrillation.

• Journal of Chest Surgery
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• v.32 no.12
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• pp.1106-1110
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• 1999

배경: 다한증의 치료에 있어서 흉강경을 이용한 교감신경절제술의 시술 빈도가 급증하고 있다. 그러나 액와부 다한증의 경우 수장부나 안면 두부다한증에 비하여 절제범위가 광범위하여 이에 따른 보상성 다한증 및 기타 합병증의 발생의 높고 액취증이 동반되어있는 경우 장기적인 만족도가 낮아서 크게 각광 받지 못해왔다. 대상 및 방법: 본 교실에서는 1997년 3월부터 1999년 4월까지 45례의 액와부 다한증 환자에서 2 mm 흉강내시경을 이용하여 흉부교감신경절제술 또는 잘단술을 시행하였다. 남자 28례 여자 17례로 평균연령은 28(13-46세) 였고 평균추적기간은 10개월(1-24)이었다. 24례가 액와부에만 국한된 과도발한을 호소 하였고 2례에서 수술 전 심한 액취증이 동반되어있었다. 21례의 T3,4 교감신경절제술, 20례의 T2,4 교감신경단술 그리고 4례의 T4 교감신경절제수을 시행하여 즉각적인 증상치유효과 보상성 다한증 및 장기적 만족도를 비교 분석하였다. 중등도 이상의 흉막유착으로 5mm 내시경이 필요했던 2례을 제외한 전 환자에서 2mm 트로카 2개를 사용하여 수술을 하였다 결과: 평균수술시간은 T3,4 교감신경절제술이 46.2$\pm$11분 T2, 4 교감신경절단술이 32.5$\pm$23분 T4 교감신경절제술이 53.8$\pm$18분이 소요되었고 수술직후의 효과는 T3,4 교감신경절제술과 T2,4 교감신경절단술에서 '전혀땀이 나지 않는다'가 17례(81%) 와 12례(60%) '수술전보다 감소했으나 약간땀이 난다'가 4례(19%) 와 8례(40%) 로 모든 환자에서 효과가 있었으나 T4 교감신경절제술은 4례중3례(75%)에서 전혀 효과가 없었다. 보상성 다한증은 T3,4교감신경절제술과 T2,4 교감신경절단술에서 각각 67%, 60%로 나타났고 생활에 불편을 줄 정도의 심한경우는 10% 5%에 불과했으며 장기적인 만족도는 T3,4 교감신경절제술이 86% T2,4 교감신경절단술이 89%로 나타나 높은 성공률을 보았다 결론 : 액와부다한증의 치료에 있어서 T3,4 교감신경절제술과 T2,4교감신경절단술은 증상치유효과가 높고 절제범위의 제한에 따른 보상성 다한증의 감소로 장기적 만족도가 우수한 효과적인 방법이다. 액취증이 동반된 경우 이에대한 충분한사전 설명과 원인 감별후 적절한 보조요법을 병행함으로써 환자의 만족도를 높힐수 있다고 본다.

• Journal of Chest Surgery
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• v.30 no.1
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• pp.48-54
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• 1997

Between 1987 and 1995, eleven patients with severe chronic corrosive stenosis of the hypopharynx and esophagus underwent surgical restoration of digestive continuity at Inje University Seoul Palk Hospital. There were 7 male and 4 female patients aged from 21 to 47 years (mean, 34 years). The caustic material was acid in 6 patients and alkali in 5 patients. The esophagus was reconstructed using the right colon In 9 and left colon in 2. The cervical approach and the side of proximal anastomosis depended on the status of the pyriform slnus of the hypopharynx. In the neck, J-formed incision was made along the sternocleidomastoid muscle. The sternohyoid and thyrohyoid muscles were divided transversely to expose the thyroid cartilage. Hypopharyngeal opening for proximal anastomosis was made by reverse triangular formed resection of the thyroid cartilage after elevation of perichondrium. Immediately after operation, dysphagia and aspiration into trachea were common, so training of swallowing was required. Feeding gastrostomy was usually maintained for 3 months until restoration of swallowing function was confirmed . There was graft necrosis in 3 patients, who were treated with jejunal free graft. Revisional procedures for stenosis of cervical anastomosis in B patients consisted of widening of pharyngocecostomy site in 2 and resection of adhesive band in one. Return of normal swallowing assuring normal nutrition was obtained in 10 of 11 cases.

• The Journal of Korean Academy of Prosthodontics
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• v.57 no.4
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• pp.397-404
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• 2019

Bone and soft tissue conditions are important for successful implant treatment. But, the placement itself is also very important. Implants which is installed in the wrong position result in the biological, esthetical and mechanical problems. In order to place an implant in the correct position, the final restoration and diagnostic wax-up should be considered prior to the surgery. If the artificial teeth for the interim denture are directly transferred from the diagnostic wax-up, the operator can try the form of diagnostic wax-up in the mouth. If the surgical template is produced by duplicating the interim denture, the implant can be placed in the planned position. In this case, the polymethyl methacrylate (PMMA) artificial tooth was precisely milled by the digital duplication of diagnostic wax-up. And interim denture was fabricated by using these milled teeth. After the patient adapted for a sufficient period, the implant was placed at the planned position with surgical template produced by duplicating the interim denture. After confirming sufficient osseointegration, the final prostheses were made to reflect the shape of diagnostic wax-up. Through this procedure, the satisfactory functional and esthetic outcome could be acquired.