Navigating the expanding treatment landscape in skin disease: Baricitinib

원종현 ( Chong Hyun Won ) 대한피부과학회 2023 대한피부과학회 학술발표대회집 Vol.74 No.2

Educational Lecture 2-1 (EL 2-1) : Surgical anatomy of head and neck area

원종현 ( Chong Hyun Won ) 대한피부과학회 2015 대한피부과학회 학술발표대회집 Vol.67 No.1

Dermatological surgeons must have an in-depth understanding of the regional head and neck anatomy to achieve good surgical outcomes and avoid complications related to procedures. Ideal cosmetic procedures such as botulinum toxin and filler injections and surgical procedures (skin biopsy, excision, etc) are possible based on in-depth knowledge of head and neck anatomy. The anatomy of the head and neck is complex. There are cosmetic boundaries, which should be preserved as much as possible and remove additional tissue to place incisions at the junction of cosmetic unit during facial surgery to minimize the distortion of face. There are several danger zones in the head and neck area where the nerves or arteries travel more superficially. It is important to recognize the danger zones to minimize the risks of arterial bleeding (the frontal branch of temporal artery at the temple, the facial artery as it crosses the mandibular rim, the angular artery as it courses near the nose) and nerve transaction (the temporal branch of the facial nerve, the spinal accessory nerve in the posterior triangle of the neck, the marginal mandibular nerve as it courses in the neck below the mandible) , and preserve the cosmetic units of the face during surgery. The surgical risk of injury to nerves or other relevant anatomic structures should be discussed with the patient preoperatively, and informed written consent should be obtained. In addition, we should be aware of where to perform nerve blocks (supraorbital, infraorbital, and mental nerve foramina). This lecture will discuss how to identify the anatomical danger zones in the head and neck area and how to apply knowledge of head and neck anatomy in dermatologic surgical procedures.

연기금의 다기간 전략적 자산배분

원종현(Chong Hyun Won) 한국증권학회 2006 한국증권학회지 Vol.35 No.4

연기금의 다기간 전략적 자산배분

원종현(Chong Hyun Won) 한국증권학회 2006 Asia-Pacific Journal of Financial Studies Vol.35 No.4

아토피피부염 마우스 모델에 대하여

원종현 ( Chong Hyun Won ) 대한천식알레르기학회 2009 천식 및 알레르기 Vol.29 No.4

만성 광선 피부염 12예에 대한 임상적 고찰

원종현 ( Chong Hyun Won ),윤재일 ( Jai Il Youn ) 대한피부과학회 2007 大韓皮膚科學會誌 Vol.45 No.11

Background: Chronic actinic dermatitis (CAD) has been defined using three criteria: clinical photobiological and histological aspects. CAD is a rare disease with only a few clinical analyses reported in Korea. Objective: The purpose of this study was to investigate the clinical characteristics of CAD including epidemiology, clinical presentations and results of phototests in Korean patients. Methods: A retrospective analysis was conducted according to patients` medical records at Seoul National University Hospital. Results: Twelve patients were enrolled in this study. Most were elderly men with skin lesions on the sun-exposed areas. The mean age was 55. 4 years. Ten patients were male and the other 2 were female. The mean duration of the disease was 12.7 years. Phototests showed that 6 patients showed decreased minimal erythema dose (MED) to UVA and 2 patients decreased MED to UVB. The remaining 4 patients decreased to both UVA and UVB. Conclusion: The most common abnormal phototest results were decreased MED to UVA. More patients showed normal MED to UVB in this study compared with other studies. Our study analyzed the clinical and photobiological characteristics of CAD in Korean patients. (Korean J Dermatol 2007;45(11):1144∼1148)

공적연금기금의 장기 자산배분 목표 설정

원종현(Chong Hyun Won) 한국증권학회 2009 한국증권학회지 Vol.38 No.1

사회보험성격의 공적연금에서 기금적립전략과 자산투자전략은 새의 양 날개와 같이 상호 보완적 관계에 있다. 이러한 상호연관성으로 자산부채종합모형, ALM 모형의 중요성은 점차 커지고 있으며 기금운용의 핵심을 이루는 방안으로 대두되었다. 사회보험 성격을 가지는 공적연금에서 ALM이 중요한 이유는 무엇보다도 연금제도와 기금운용 사이에 명시적인 연결고리를 구성할 수 있도록 지원하기 때문이다. 이는 공적연금의 입장에서 매우 중요한 기능이다. 사회보험 성격의 공적연금기금의 장기 지속성을 보장하기 위한 수단으로 ALM은 기금운용 성과와 보험료율, 지급률 등을 연계시키는 유기적 관계를 가지도록 할 수 있게 한다. 이를 통하여 연금기금은 잠재적으로 발생하게 될 연금 가입자에 대한 향후 지급할 연금부채와 운용자산 사이의 대립되는 사항들을 효율적으로 관리할 수 있도록 해준다. 그러나 자산-부채 간 관계를 설정하기에 앞서 현실적으로 주어진 자산과 부채를 어떠한 입장에서 운용하여야 할 것인가에 대한 운용목표가 마련되어야 한다. 많은 연금기금 운용기관의 기금운용규정이나 법규에 명시된 적정 위험 하에서의 최고의 수익률이라는 개념만으로는 부족하다. ALM 모형을 기금운용의 대상으로 삼는다면 미래 현금흐름에 대한 운용자 혹은 기금주체의 명확한 목표가 제시되어야 한다. 이러한 목표는 기금적립율(funding ratio)이 될 수도 있으며, 위험회피성향 혹은 제도와 기금간의 분담률 등 여러 가지 방법으로 표방될 수 있을 것이다. 사전적으로 어떠한 형태로든지 제도적 기준에서의 기금운용 목표를 설정하게 된다면, 각 자산군별 배분전략은 수립이 가능하다. 이는 적절한 운용목표가 주어진다면 이를 바탕으로 ALM 입장에서 전략적 기준의 기대수익률이나 허용위험이 설정될 수 있음을 의미한다. 그리고 여기서부터 전략적, 전술적 차원의 자산배분이 마련되는 기준을 제시하게 되는 것이다. 연구에서는 사회보험 성격을 가지는 국내 공적연금의 자산과 부채에 대한 수준을 측정하고 장기적 관점에서 자산과 부채간의 관계를 추정하였다. 그리고 이들간 관계를 안정시키는 것을 목적으로 하는 기금의 장기 목표수익률을 산출하였다. 그리고 이러한 목표 달성을 위해 현재 상태에서의 적절한 자산배분안을 도출하고 연금기금 운용과 제도 운영간의 관계성을 검토하고자 하였다. In the social insurance-like public pension, fund accumulation and asset investment strategies are complementary to each other like both wings of a bird. Because of this complementary nature, Asset Liability Management (ALM) model is becoming more important and has emerged as the core of fund operation. This is because ALM forms and supports an explicit link between the pension system and fund operation. This is a vital function in public pension. As a means to secure continuation of the social insurance-like public pension, ALM enables an organic relationship among fund operation, premium rate, and benefit rate. Through this, the pension fund facilitates the effective management of conflicting issues between fund operation and pension liability that will later be paid to potential pension policy holders. A simple goal like the highest returns with appropriate risks, often written down on regulations of pension fund operating institutions is not enough. If the ALM model is to be chosen as a fund operation model, the clear goal of fund operator or fund depositor must be indicated. These goals could be about the funding ratio, risk aversion tendency, or apportionment between pension system and funds. When a fund operation goal of institutional standard is established in any form beforehand, it will be possible to come up with a distribution strategy by asset-type. This means that when an operation goal is given, based on this, return rates and risk levels at strategic levels may be set up according to the ALM model. And from here on, a standard for asset distribution of strategic and tactical level will be created This study aims to measure the asset and liability level of the social insurance-like public pension, and explore the correlation between liability and asset from a long term perspective. This study also produced a long term return rate for funds that aim to stabilize the correlation between the two. To achieve this goal, this study will deduce an appropriate asset distribution plan and explore the relationship between pension fund operation and system operation.

Educational Lecture 2-1 (EL 2-1) : Surgical anatomy of head and neck area

원종현 ( Chong Hyun Won ) 대한피부과학회 2016 대한피부과학회 학술발표대회집 Vol.68 No.1

A working knowledge of anatomy is essential to perform any of the varieties of procedures associated with cutaneous oncology or esthetic correction of the aging face so as to achieve good surgical outcomes and avoid complications related to procedures. We have to be aware that there are significant variations in the skin of the head and neck and the relationship to underlying adipose tissue, cartilage, and bone occur within very short distances of a few centimeters of the scalp, eyelids, lips and chin. There are also growing needs of thorough understanding of facial fat structure, expression muscles and retaining ligaments with the developments of cosmetic procedures of dermatological field. There are cosmetic boundaries, which should be preserved as much as possible and remove additional tissue to place incisions at the junction of cosmetic unit during facial surgery to minimize the distortion of face. There are several danger zones in the head and neck area where the nerves or arteries travel more superficially. It is important to recognize the danger zones to minimize the risks of arterial bleeding ( the frontal branch of temporal artery at the temple, the facial artery as it crosses the mandibular rim, the angular artery as it courses near the nose) and nerve transaction ( the temporal branch of the facial nerve, the spinal accessory nerve in the posterior triangle of the neck, the marginal mandibular nerve as it courses in the neck below the mandible) , and preserve the cosmetic units of the face during surgery. The surgical risk of injury to nerves or other relevant anatomic structures should be discussed with the patient preoperatively, and informed written consent should be obtained. In addition, we should be aware of where to perform nerve blocks (supraorbital, infraorbital, and mental nerve foramina). This lecture will discuss how to identify the anatomical danger zones in the head and neck area and how to apply knowledge of head and neck anatomy in dermatologic surgical procedures.

알레르기질환 및 아토피피부염에서 가려움증의 병인 및 치료적 접근

원종현 ( Chong Hyun Won ),홍승필 ( Seung Phil Hong ) 대한천식알레르기학회 2010 천식 및 알레르기 Vol.30 No.3

Pruritus, briefly defined as an unpleasant sensation provoking the desire to scratch, is a major characteristic and one of the most debilitating symptoms in allergic diseases and atopic dermatitis. Although recent observations have clearly improved our knowledge of the pathophysiology of pruritus, it is still too complex involving neurophysiological and neuroimmunological aspects. In this review, we summarize the current information regarding the role of mediators and receptors related to trigger or inhibit pruritus, and the management of pruritus in allergic and atopic disease. (Korean J Asthma Allergy Clin Immunol 2010;30:184-192)

Perineural invasions vs. other invasive factors

원종현 ( Chong Hyun Won ) 대한피부과학회 2016 대한피부과학회 학술발표대회집 Vol.68 No.2