• Journal of Korean Neurosurgical Society
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• 제45권2호
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• pp.67-73
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• 2009

Objective : Although endoscopic procedures for lumbar disc diseases have improved greatly, the postoperative outcomes for high grade inferior migrated discs are not satisfactory. Because of anatomic limitations, a rigid endoscope cannot reach all lesions effectively. The purpose of this study was to determine the feasibility of endoscopic transforaminal suprapedicular approach to high grade inferior-migrated lumbar disc herniations. Methods : Between May 2006 and March 2008, a suprapedicular approach was performed in 53 patients with high grade inferior-migrated lumbar disc herniations using a rigid endoscope and a semi-rigid flexible curved probe. One-to-four hours after surgery, the presence of remnant discs was checked with MRI. The outcomes were evaluated with the visual analogue scale (VAS) score and the Oswestry Disability Index (ODI) one week after surgery. Results : The L2-3 level was involved in 2 patients and the L3-4 level was involved in 14 patients, while the L4-5 level was involved in 39 patients. There were single piece-type in 34 cases and a multiple piece-type in 19 cases. Satisfactory results were obtained in all cases. The mean preoperative VAS for leg pain was $9.32{\pm}0.43$ points (range, 7-10 points), whereas the mean ODI was $79.82{\pm}4.53$ points (range, 68-92 points). At the last follow-up examination, the mean postoperative VAS for leg pain was $1.78{\pm}0.71$ points and the mean postoperative ODI improved to $15.27{\pm}3.82$ points. Conclusion : A high grade inferior migrated lumbar disc is difficult to remove sufficiently by posterolateral endoscopic lumbar dscectomy using a rigid endoscope. However, a satisfactory result can be obtained by applying a transforaminal suprapedicular approach with a flexible semi-rigid curved probe.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제19권1호
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• pp.29-37
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• 2016

Purpose: The aim of our study was to establish a safe and convenient diagnostic method for acute gastrointestinal (GI) graft-versus-host disease (GVHD) in children by determining the sensitivity and negative predictive values of upper and lower endoscopic biopsies for children suspected of GI GVHD. Methods: Patients suspected of GI GVHD who received endoscopic evaluation within 100 days after stem cell transplantation and endoscopies between January 2012 and March 2014 in Seoul National University Children's Hospital were included in our study. Results: Fifteen patients with a total of 20 endoscopic procedures were included in our study. Sensitivity at the esophagus, stomach, and duodenum were 22.2%, 30.0%, and 80.0%, respectively. Negative predictive values at the esophagus, stomach, and duodenum were 22.2%, 30.0%, and 60.0%, respectively. Overall sensitivity and negative predictive values of upper endoscopic biopsy for GVHD were 77.8% and 50.0%, respectively. Overall sensitivity and negative predictive values of lower endoscopic biopsy for GVHD were 88.9% and 66.7%, respectively. Conclusion: We recommend flexible sigmoidoscopy as a safe and accurate diagnostic tool for GVHD, similar to other studies reported previously. However, if there is no evidence of GVHD on sigmoidoscopy with high index of suspicion of GI bleeding, full colonoscopy and upper endoscopy should be considered.

• Journal of Chest Surgery
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• 제53권4호
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• pp.233-241
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• 2020

Vagal damage and subsequent pyloric denervation inevitably occur during esophagectomy, potentially leading to delayed gastric emptying (DGE). The choice of an optimal pyloric procedure to overcome DGE is important, as such procedures can lead to prolonged surgery, shortening of the conduit, disruption of the blood supply, and gastric dumping/bile reflux. This study investigated various pyloric methods and analyzed comparative studies in order to determine the optimal pyloric procedure. Surgical procedures for the pylorus include pyloromyotomy, pyloroplasty, or digital fracture. Botulinum toxin injection, endoscopic balloon dilatation, and erythromycin are non-surgical procedures. The scope, technique, and effects of these procedures are changing due to advances in minimally invasive surgery and postoperative interventions. Some comparative studies have shown that pyloric procedures are helpful for DGE, while others have argued that it is difficult to reach an objective conclusion because of the variety of definitions of DGE and evaluation methods. In conclusion, recent advances in interventional technology and minimally invasive surgery have led to questions regarding the practice of pyloric procedures. However, many clinicians still perform them and they are at least somewhat effective. To provide guidance on the optimal pyloric procedure, DGE should first be defined clearly, and a large-scale study with an objective evaluation method will then be required.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제35권5호
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• pp.331-336
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• 2013

Maxillary sinus membrane elevation and bone graft have been performed routinely in alveolar bone with insufficient residual bone height. There are a number of causes for development of maxillary sinusitis after these procedures. When maxillary sinusitis is caused by sinus membrane elevation, bone graft, and implant placement, various treatment such as medication, incision and drainage (I&D), implant removal, and the Caldwell-Luc procedure can be considered. Removal of an implant or the Caldwell-Luc procedure can be harmful if inflammation is not present in the oral cavity and survival of grafted bone and implant osseointegration can be expected despite the presence of maxillary sinusitis. In this case, functional endoscopic sinus surgery, which was often used in the otorhinolaryngology department, was performed without removal of the implant for a patient with maxillary sinusitis after one month following implant placement. Thus, we report on this case with a review of the literature.

• Journal of Chest Surgery
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• 제51권1호
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• pp.76-80
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• 2018

Early diagnosis followed by primary repair is the best treatment for spontaneous esophageal perforation. However, the appropriate management of esophageal leakage after surgical repair is still controversial. Recently, the successful adaptation of vacuum-assisted closure therapy, which is well established for the treatment of chronic surface wounds, has been demonstrated for esophageal perforation or leakage. Conservative treatment methods require long-term fasting with total parenteral nutrition or enteral feeding through invasive procedures, such as percutaneous endoscopic gastrostomy or a feeding jejunostomy. We report 2 cases of esophageal leakage after primary repair treated by endoscopic vacuum therapy with continuous enteral feeding using a Sengstaken-Blakemore tube.

• 대한정형외과학회지
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• 제54권3호
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• pp.219-226
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• 2019

요추 척추관 협착증에서 다양한 방법으로 감압술을 시행하고 있으며, 최근 들어 고식적인 척추관 감압술의 여러 합병증을 최소화하기 위하여 최소 침습적 척추 수술이 시행되고 있다. 단방향 내시경을 이용한 감압술은 구조적으로 한계가 있어 그 사용이 제한적이기 때문에 양방향 내시경을 이용한 감압술을 시행하고 있다. 요추 척추관 협착증에서 양방향 내시경을 이용한 감압술은 안전하게 충분한 감압술을 시행할 수 있는 만족스러운 수술법이다.

• 한국산학기술학회논문지
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• 제16권10호
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• pp.6985-6991
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• 2015

서론: 통상적인 갑상선 암 수술시 생기는 목의 전면에 있는 흉터를 피하기 위해 여러 다양한 수술 기법들이 고안되고 있다. 저자들이 고안한 로봇 내시경 갑상선 수술법으로 수술을 시행 받은 256예를 대상으로 기구의 변화와 더불어 로봇 내시경적 수술방법(액와 유륜 접근법과 유일-액와 접근법)에 따라 수술 결과를 비교하여 각 수술 방법의 안정성 및 유용성을 확인하고자 하였다. 대상 및 방법: 2008년 11월부터 2014년 7월까지 로봇 내시경 갑상선 수술을 시행 받은 256명의 환자를 대상으로 하였다. 접근방법에 따라 2008년 11월부터 2010년 7월까지 액와-유륜 접근법(Axillo-Breast approach, AB group)이 128례, 2010년 8월부터 2014년 7월까지 유일-액와 접근법(Only-Axillary approach, OA group)이 128예로 구성되었다. 수집된 자료는 SPSS v.12 를 이용하여 실험군과 대조군의 동질성 검정은 independent t-test, fisher's exact test, $x^2$-test로 양측검정을 실시하였다. 결과: 종양의 특성, 수술범위, 채취된 평균 림프절 개수(AB group 5.1개, OA group 6.1개), 수술 후 주요 합병증(AB group 0.8%, OA group 0.8%)은 양 군간에 차이는 없었다. 유일-액와 접근법의 경우 유륜의 흉터를 피할 수 있었다. 결론: 액와-유륜 접근법과 유일-액와 접근을 통한 로봇 내시경적 갑상선 절제술 모두 안전하고 유용한 수술법이다. 로봇 내시경 갑상선 수술에서 유륜의 흉터를 피하고자 하는 경우, 5 mm Maryland dissector 2개를 이용한 유일-액와 접근을 통한 로봇 내시경 갑상선 절제술을 고려해 볼 수 있을 것으로 생각된다.

• Journal of Chest Surgery
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• 제47권4호
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• pp.327-332
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• 2014

Single-port video-assisted thoracic surgery (VATS) has slowly established itself as an alternate surgical approach for the treatment of an increasingly wide range of thoracic conditions. The potential benefits of fewer surgical incisions, better cosmesis, and less postoperative pain and paraesthesia have led to the technique's popularity worldwide. The limited single small incision through which the surgeon has to operate poses challenges that are slowly being addressed by improvements in instrument design. Of note, instruments and video-camera systems that are narrower and angulated have made single-port VATS major lung resection easier to perform and learn. In the future, we may see the development of subcostal or embryonic natural orifice translumenal endoscopic surgery access, evolution in anaesthesia strategies, and cross-discipline imaging-assisted lesion localization for single-port VATS procedures.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제40권2호
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• pp.87-90
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• 2014

The present report describes the case of a patient who underwent maxillary sinusitis right after dental implant installation with sinus lifting. Computed tomography scan revealed a dental implant (#16) was protruded inside the right maxillary sinus and confirmed the obstruction of ostium. A symptom remission was gained with the dual approaches combined by functional endoscopic sinus surgery and an intra-oral approach. Fully recovered function and healing of sinus were identified after 10 months follow-up. We report the case of sinusitis caused by protrusion of implants with sinus floor lift procedures and propose that practitioners should be aware of the possible its complications and management.

• Journal of Korean Neurosurgical Society
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• 제29권6호
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• pp.826-831
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• 2000

The major indication of endoscope in neurosurgical field is intraventricular procedures. Recently, it can be used selectively in the intraaxial mass lesion associated cavity. For example, cystic mass, with liquefied necrosis, and blood clot can be approached with this technique. The authors present its usage in brain abscess ruptured into lateral ventricle. The neuroendoscope was introduced into abscess cavity through stereotactic guidance, the pus was then removed through continuous irrigation and suction under direct video visualization. The intraventricular pus was also cleaned through gentle, direct endoscopic irrigation and suction. The postoperative clinical course was uneventful. Brief overview is given for this intraaxial neuroendoscopic procedure.