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증식당뇨망막병증 환자에서 유리체절제술 후 신생혈관녹내장 발생의 위험인자 분석
정희영,정혜진,최진영,손준홍,정윤석,Hee Young Chung,Hye Jin Chung,Jin Young Choi,Joon Hong Sohn,Yun Suk Chung 대한안과학회 2013 대한안과학회지 Vol.54 No.12
Purpose: The use of pre- and intraoperative vitreous bevacizumab injection and combined lens extraction with vitrectomy in patients with proliferative diabetic retinopathy (PDR) is increasing. In this study we analyzed the incidence and risk factors of neovascular glaucoma (NVG) after vitrectomy for PDR.<br /> Methods: Patients who underwent vitrectomy for PDR from January 2004 to June 2011 were retrospectively reviewed. The minimum follow-up was 12 months. The cumulative incidence of NVG was calculated using the Kaplan-Meier survival analysis. The patients were divided into 4 groups according to lens status (preoperative pseudophakic group, simultaneous cataract surgery group, sequential cataract surgery group, non-cataract surgery group). The differences in incidence between the groups were determined by the Chi-square test. Finally, to analyze the risk factors associated with the occurrence of NVG, the Cox's regression model was used.<br /> Results: Of the 614 eyes (402 patients), 284 were males and 330 were females. The mean age was 55.8 ± 10.46 years (range 30-81 years) and the mean follow-up period was 36.6 months (range 1-93 months). Thirty-four of 614 patients (5.5%) developed postoperative NVG after vitrectomy. The probability of NVG occurrence at 6 and 12 months after vitrectomy was 0.7% and 2.5%, respectively. The incidence between the 4 groups did not show a statistically significant difference. The risk factors for postoperative NVG were male gender (RR = 3.01 p = 0.004), preoperative intravitreal bevacizumab injection (RR = 7.20, p < 0.001), and reoperation (RR = 3.18, p = 0.0037).<br /> Conclusions: The frequency of NVG after vitrectomy in patients with PDR was 5.5%. Lens status was not associated with NVG occurrence. The risk factors related to NVG were male gender, preoperative intravitreal bevacizumab injection, and reoperation.<br /> J Korean Ophthalmol Soc 2013;54(12):1868-1874
EFDC모형을 이용한 새만금호 내 해수유통량에 따른 오염물질 혼합 변화 모의
정희영,류인구,정세웅,Jeong, Hee-Young,Ryu, In-Gu,Chung, Se-Woong 한국농공학회 2009 한국농공학회논문집 Vol.51 No.6
The EFDC (Environmental Fluid Dynamics Code), a numerical model for simulating three-dimensional (3D) flow, transport, and biogeochemical processes in surface water systems including rivers, reservoirs, and estuaries, was applied to assess the effect of sea water and fresh water exchange rates ($Q_e$) on the mixing characteristics of a conservative pollutant (tracer) induced from upstreams and salinity in Saemangeum Lake, Korea. The lake has been closed by a 33 km estuary embankment since last April of 2006, and now seawater enters the lake partially through two sluice gates (Sinsi and Garyuk), which is driving the changes of hydrodynamic and water quality properties of the lake. The EFDC was constructed and calibrated with surveyed bathymetry data and field data including water level, temperature, and salinity in 2008. The model showed good agreement with the field data and adequately replicated the spatial and temporal variations of the variables. The validated model was applied to simulated the tracer and salinity with two different gate operation scenarios: RUN-1 and RUN-2. RUN-1 is the case of real operation condition ($Q_e=25,000,000\;m^3$) of 2008, while RUN-2 assumed full open of Sinsi gate to increase $Q_e$ by $120,000,000\;m^3$. Statistical analysis of the simulation results indicate that mixing characteristics of pollutants from upstream can be significantly affected by the amount of $Q_e$.
결막 경유 직접적 안구 내 침 시술로 인한 안구 천공 손상 1예
정희영(Hee Young Chung),이수찬(Su Chan Lee),최진영(Jin Young Choi),손준홍(Joon Hong Sohn),황덕진(Duck Jin Hwang) 대한안과학회 2016 대한안과학회지 Vol.57 No.1
Purpose: To report a case of ocular perforation by an acupuncture needle directly through the bulbar conjunctiva. Case summary: A 62-year-old male visited our clinic with acute ocular pain and decreased vision in his left eye. He had received intraocular acupuncture therapy one day earlier. A slit-lamp examination revealed conjunctival hyperemia and vitreous prolapse at the superonasal quadrant of the bulbar conjunctiva. Grade one of anterior chamber cells was found in the left eye. Dilated fundoscopy revealed three retinal hemorrhages at the superonasal quadrant of the retina; vitreous hemorrhage and opacity were also observed. Thus, vitrectomy and injections of intravitreal antibiotics were performed. Intraoperatively, we identified the entry site, located in the superonasal retinal quadrant, immediately behind the ora serratia. At the three-month postoperative follow- up, the patient’s visual acuity was 0.9 in the left eye and the retina remained flat with no postoperative complications. Conclusions: We observed a case of ocular perforation and endophthalmitis following ocular acupuncture treatment. This case illustrates the dangers of intraocular acupuncture therapy.
정희영 ( Hee Young Chung ),정규원 ( Kyu Won Chung ),은광표 ( Kwang Pyo Eun ),조성경 ( Sung Kyung Cho ),김동문 ( Dong Moon Kim ),김종우 ( Jong Woo Kim ) 대한내과학회 1970 대한내과학회지 Vol.13 No.3
This report documents the comparative study of gall bladder function on 24 typhoid fever and 19 other febrile illnesses, admitted to St. Mary`s Hospital, Catholic Medical College, performing oral cholecystography and various clinical laboratory tests inclu