부비동 내시경 수술 후 안와지판의 손상 없이 발생한 지연성 구후 혈종 1예

조규섭,이근익,홍성룡,노환중 대한이비인후과학회 부산,울산,경남 지부회 2014 임상이비인후과 Vol.25 No.2

Retrobulbar hematoma is one of the major complications following endoscopic sinus surgery (ESS). Symptoms and physical findings include temporary blindness, ophthalmoplegia, mydriasis, ptosis, proptosis, and eyelid ecchymosis. Recently, we experienced a rare case of the delayed retrobulbar hematoma with intact lamina papyracea after ESS. Therefore, we present this case with an emphasis on the importance of prevention, identification and management of delayed retrobulbar hematoma.

안와를 침범한 상악동 악성종양에서 안구 보존을 위한 내시경의 역할

조규섭,노환중 부산대학교 병원 암연구소 2008 부산대병원학술지 Vol.- No.24

Background and Objectives: The periorbita has been regarded as the crucial structure in decision of orbital exenteration in the patients with paranasal malignancies. The mass beyond the thickened periorbita on T2-weighted images was considered to be a positive finding of orbital invasion. The purpose of this study is to evaluate the oncological safety of endoscopic removal of infiltrated tumor onto the periorbita but not transgress into orbital fat. Patients and Methods: Five patients of advanced maxillary cancer, showing bony orbital wall destruction and infiltration onto the periorbita but not transgress into orbital fat, underwent partial or total maxillectomy. Preoperative Cl and MRI were performed in all cases and compared with intraoperative findings. The successful dissection between tumors and periorbita using bipolar nasal coagulation forceps and tumor forcep was performed under endoscopy. Results: The mean age was 54.4 (41-74) years. All tumors of five patients originated from maxillary sinus and extended to involve multiple different subsites according to AJCC (2002, 6^(th) ed.) Histopathology included four squamous cell carcinomas and one adenoid cystic carcinoma. Follow-up ranged from 30 to 121 months (mean 53.6 months). All cases showed no local recurrence on the periobita after endoscopic removal. One patient had local recurrence in the pterygopalatine fossa and the other had in the neck. Conclusion: Endoscopic removal of infiltrated tumor onto the periorbita using microdebrider, bipolar nasal coagulation forceps and tumor forceps can be oncologically safe technique in advanced maxillary cancer infiltrated onto the periorbita but not invaded into orbital fat.

협대역 ISDN에서의 중대역 교환기능 실현에 관한 연구(Ⅰ) : 회선교환 모드에 의한 실현방안 Realization Scheme Based on the Circuit Switched Mode

曺圭燮,林海鎭 成均館大學校 科學技術硏究所 1993 論文集 Vol.44 No.2

Prior to the national narrowband ISDN commercial service, it is necessary to develop the wideband switching capability in order to prepare the needs for wideband services which are expected to increase rapidly in the near future. Among the wideband channels, HO channel switching is expected to be implemented based on the present narrowband ISDN switch. In the development of HO channel switching, both of circuit switched mode and packet switched mode must be implemented like narrowband case. In this paper, an implementation scheme of wideband switching function on the existing TDX-lB/ISDN switch based on the circuit switched mode is suggested. For this, we proposed multi-time slot assignment method using divided in two channel table and addition of dedicated wideband switch method which utilizes existing switch module. We also surveyed the applicability of the two methods to the TDX-1B/ISDN switch. Based on this survey, we finally proposed a implementation scheme adopting the two methods par tially.

비강 내 발생한 사구종양 1예

조규섭,구형준,김대희,노환중 대한이비인후과학회 2006 대한이비인후과학회지 두경부외과학 Vol.49 No.2

Glomus tumor, a benign tumor arising from the glomus body, usually occurs in the soft tissue of the extremities, particularly in the subungal region of the fingers. As a tumor, it is relatively rare in the head and neck region and even rarer in the nasal cavity. We have experienced a glomus tumor originated in posterior portion of nasal septum. A 82-year-old male presented a left nasal cavity mass associated with intermittent nasal obstruction and epistaxis, for which endoscopic excision with bipolar electrocautery was performed. Histopathologic findings led to the diagnosis of a glomus tumor, which originated from posterior septal artery. There was no evidence of recurrence after 6 months from the operation. We report this case with a review of literature. (Korean J Otolaryngol 2006;49:221-4)

S 인터페이스 설계 기술

조규섭,이유경 한국통신학회 1988 한국통신학회 워크샵 Vol.- No.-

ISDN Overview

조규섭 대한전자공학회 1996 대한전자공학회 학술대회 Vol.1996 No.01

유럽 전송방식 도입에 따른 국내 ISDN 구축의 문제점 고찰

조규섭 한국통신학회 1993 韓國通信學會論文誌 Vol.18 No.2

ISDN에서의 64 kbps 완전채널 확보를 위해 북미식에 의한 국내 디지털 전송방식을 유럽식으로 전환키로 하였으나 두방식의 서로다른 압신특성 때문에 기존의 시분할 디지틀 교환기, 예를들어 TDX-1 교환기를 ISDN에 편입시키기 위한 연구과정에서 문제점이 도출되었다. TDX-1은 북미식 ${\mu}$ law 압신방식을 갖는 이미 상용화된 교환기로서 현재 ISDN 기능을 부가시키기 위한 연구가 마무리 단계에 있다. 이러한 TDX-1과 A law 압신방식을 갖는 새로운 유럽 시스팀간에 ${\mu}/A$ 변환기능이 존재함으로 인하여 ISDN B 채널의 투명성을 유지하기가 어렵게 되었다. 이 문제의 해결을 위해 유럽 전송포맷을 채택하되 ${\mu}$ law로 압신방식을 통일할 것을 제안하였다. 본 논문은 이러한 문제점과 해결방안을 제시하고 있다. To secure the 64 kbps clear channel capability in the ISDN, it was decided to convert its North American digital transmission system into the European system especially in DS1 level. But their different companding law became an issue in the process of R&D in the existing time division digital switch such as TDX-1 to incorporate it into the ISDN. TDX-1 has been installed with North American ${\mu}$ companding law and its ISDN capability is under development now. Thus, because of the ${\mu}$ law/A law conversion for the interworking of two different transmission system, it is difficult to maintain the ISDN B channel transparency between TDX-1 and new European system with A companding law. Among some solutions for it, European frame format with ${\mu}$ law companding is recommended. Those problems and solutions are presented in this paper.

비과 영역에서 중간엽줄기세포의 적용

조규섭 대한이비인후과학회 2014 대한이비인후과학회지 두경부외과학 Vol.57 No.4

Mesenchymal stem cells (MSCs) are adult stem cells which are present in a variety of adult tissues and reside in essentially all post-natal organs and tissues. MSCs represent an important stem cell population with multi-potent capabilities which may have high utility for translational clinical applications. MSCs can be isolated from a number of adult tissues and differentiate into several mesenchymal lineages both in vitro and in vivo, such as bone, cartilage, adipose tissue, and muscle. Because of their capacities of differentiation, MSCs have emerged as a promising source for therapeutic applications in tissue engineering and regenerative medicine. In addition to their multi-lineage potential, MSCs have been shown to possess the unique ability to suppress immune response and modulate inflammation. MSCs can inhibit natural killer cell function, modulate dendritic cell maturation, and suppress the allogeneic T-cell response by alternating the cytokine secretion profile of dendritic cells and T-cells induced by an allogeneic immune reaction. Therefore, MSCs have been reported to have anti-inflammatory and immunomodulatory effects in a variety of chronic inflammatory diseases. In this article, I review recent experimental data and discuss about the application of MSCs in rhinologic fields. Korean J Otorhinolaryngol-Head Neck Surg 2014;57(4):207-13

알루미늄 다이캐스팅 합금의 기계적 성질에 미치는 초음파진동의 영향

조규섭 한국소성가공학회 2010 고액공존성형 심포지엄 Vol.2010 No.3

영아에 발생한 비강내 미성숙 기형종 1예: 10년간 장기추적 결과

조규섭,박성수,오세준,노환중 대한이비인후과학회 2008 대한이비인후과학회지 두경부외과학 Vol.51 No.1

Teratomas are rare congenital neoplasms that arise from pluripotent cells. Teratomas of the head and neck are exceedingly rare and are usually present in the neonatal period. Immature teratomas account for less than 1% of all germ cell malignancies and the incidence in the nasal cavity is very rare. We report, with a review of literature, of an immature teratoma in the nasal cavity. A 5- month-old female presented with a right nasal cavity tumor associated with nasal obstruction and recurrent epistaxis. Endoscopic removal was done by minimally external alotomy approach. Tumor had originated from the roof of the nasal cavity & ethmoid sinus, and the nasal septum was deviated to the left side due to expansile mass. At follow-up, 10 years after operation, there was no evidence of recurrence;no severe nasal septum deviation nor atrophy of inferior turbinate was observed. (Korean J Otorhinolaryngol- Head Neck Surg 2008;51:88-91)