미숙아망막병증의 발생 및 진행과 체중증가율과의 연관성에 관한 분석

김고은,김정훈,김이경,김한석,최중환,유영석.Ko Eun Kim. MD. Jeong Hun Kim. MD.. Ee-Kyung Kim. MD. Han-Suk Kim. MD. Jung-Hwan Choi. MD. Young Suk Yu. MD. 대한안과학회 2011 대한안과학회지 Vol.52 No.9

Purpose: To evaluate the association between the occurrence and severity of retinopathy of prematurity (ROP) and postnatal weight gain. Methods: The medical records and mean rate of postnatal weekly weight gain measurements for 275 premature infants were retrospectively reviewed. According to fundus examination findings, 275 infants were divided into the following three groups according to the international classification of ROP: Group I; infants with no ROP, Group II; infants with mild ROP (stage 1 or stage 2 with no additional disease or spontaneous regression), and Group III; infants with moderate to severe ROP (stage 3, threshold or Type I ROP according to ET-ROP). The mean rates of postnatal weekly weight gain in each group were compared and other risk factors were evaluated. Results: There was a tendency of decrement in the mean rate of postnatal weekly weight gain in association with the severity of the disease (Group I: 13.54 ± 11.87%; Group II: 12.38 ± 1.33%; Group III: 11.41 ± 1.70%) but no statistical significance was found. Additionally, there was no statistically significant difference between the group without ROP and the group with ROP. Significant risk factors related to ROP were low birth weight, low gestational age, low Apgar score, long duration of oxygen therapy, high incidence of respiratory distress syndrome and bronchopulmonary dysplasia. Conclusions: The change in postnatal weight gain has limited usage as a main prognostic factor in predicting the progression of ROP. J Korean Ophthalmol Soc 2011;52(9):1071-1076

화농성 한선염 환자의 병변 평가와 중증도 설정을 위한 초음파 검사의 유용성

김고은 ( Ko Eun Kim ),정재영 ( Jae Yeong Jeong ),박병근 ( Byeong Geun Park ),김일환 ( Il-hwan Kim ) 대한피부과학회 2021 대한피부과학회지 Vol.59 No.8

Background: Hidradenitis suppurativa (HS) is a chronic inflammatory skin condition characterized by recurrent abscesses, nodules, and fistulous tracts. Recently, novel staging systems, including sonographic scoring system of hidradenitis suppurativa (SOS-HS), have been widely introduced in HS. Objective: To assess the efficacy of SOS-HS compared with Hurley staging and modified sartorius scoring (MSS) system and determine the necessity of ultrasound evaluation. Methods: A radiologist performed an ultrasound evaluation, and three dermatologists reviewed the images and videos. Clinical characteristics, including staging and demographic data, were recorded by three dermatologists. The correlation of each staging system and the significance of vascularity (Doppler mode) and lesion depth on sonography were statistically analyzed. Results: Among the 46 patients, 34.8% were classified as stage 1 and 3, and 30.4% were classified as stage 2 in the SOS-HS system, which was statistically higher than the Hurley staging (p<0.0005). MSS score increased according to the SOS-HS stages (p<0.0005, p=0.001). Vascularity and depth of involvement also increased with SOS-HS and Hurley staging. Conclusion: Sonographic examination can be applied in HS severity assessment and documentation of the clinical characteristics of each lesion in detail. Special tools, such as Doppler mode and depth assessment, can also be useful in HS evaluation. (Korean J Dermatol 2021;59(8):587∼595)

프로젝트 기반 학습에 참여한 예비 유아교사의 협력학습 경험에 대한 질적 탐구

김고은(Kim, Ko Eun) 이화여자대학교 이화어린이연구원 2020 영유아교육: 이론과 실천 Vol.5 No.2

본 연구의 목적은 프로젝트 기반 학습에 참여한 예비 유아교사들의 협력학습 경험을 학습자의 입장에서 심층적으로 탐색하는 것이다. 연구참여자는 S시에 위치한 4년제 대학교 유아교육과에 개설된 유아건강교육 수업을 수강하는 예비교사 26명이다. 본 연구에 활용한 주요한 질적 자료는 예비교사들의 성찰일지이며 팀 계약서, 팀 활동계획서, 팀 활동보고서, 자기·팀원평가서 등 예비교사들이 한 학기 동안 프로젝트 기반 학습에 참여하면서 개별적으로 그리고 팀별로 제출한 과제들과 학기초·학기중반 설문지를 포함하였다. 분석과정에서는 예비교사들의 정서적·심리적 경험을 협력학습 상황과 맥락 그리고 대상과의 관계에 주목하여 살펴봤으며 반복적으로 재범주화 과정을 거치면서 예비 교사들의 협력학습참여 경험을 잘 드러내는 주제를 도출하였다. 연구결과, 예비교사들은 협력학습이 일어나는 과정 중에 지연된 즐거움을 경험하고, 과업, 절차 그리고 관계 갈등을 드러내거나 숨기면서 팀원과의 관계를 형성하거나 유지해 나가기 위해 부단히 노력하였으며, 분배와 절차상의 (불)공정함에 대한 인식을 강하게 드러냈다. 본 연구는 협력의 결과뿐 아니라 협력과정 중에 있는 학습자의 수업경험에 대한 진지한 성찰이 필요하며, 협력학습의 인지적 측면 외에도 정의적 측면까지 고려할 필요가 있음을 시사한다. The study aimed at exploring PBL-based collaborative learning experiences of preservice early childhood teachers. The research participants are 26 preservice teachers enrolling in the health education for children course at one university in S city. The data sources are preservice teachers’reflective journals and include group contract, group project plan, group activity report, self and team member evaluation, and survey results. Repetitive analysis process, with a consideration of the preservice teachers’emotional experiences in relation to the learning context and target, revealed three themes. The results are as follows. First, preservice teachers seldom experienced pleasure in the PBL process as they placed a higher value on the visible final product than the invisible process. Second, preservice teachers strove hard to build and maintain relationships with their team members while revealing and simultaneously hiding task-related, process-related, and relationship-related conflicts. Third, preservice teachers showed their strong perception of the distributive (in)justice and procedural (in)justice. This study suggests that we need to reflect upon preservice teachers’experiences during the collaboration process, not just on the outcomes of collaboration. This study also suggests that we need to consider both cognitive and affective aspects of collaborative learning.

공립유치원 초임교사들의 교직입문 및 적응과정: 사회적 자본인 관계를 중심으로

김고은(Ko Eun Kim) 이화여자대학교 이화어린이연구원 2023 영유아교육: 이론과 실천 Vol.8 No.2

인공와우 이식 시기에 따른 모음의 음향음성학적 특성

김고은(Go-eun Kim),고도흥(Do-Heung Ko) 한국음성학회 2007 음성과학 Vol.14 No.4

This study was to compare some acoustic characteristics of vowels produced by children with cochlear implant (CI) and the children with normal hearing. 20 subjects under ten years old were further classified into two groups (one group of CI children under four years old and the other group of CI children over four years old). For the normal hearing group, 20 subjects are participated in the experiment. Some acoustic parameters including fundamental frequency (F0) and formant frequencies (F1, F2) were measured in the two groups according to the age of cochlear implant operation. For the CI group, three corner vowels (/a/, /i/, /u/) were recorded five times in isolation and analyzed with Multi-Speech (Kay Elemetrics, model 3700), and two independent t-tests on their formant data were conducted using SPSS 11.5. The result showed that the implanted group over four years had a significant difference in F0 and F1 comparing with the implanted group under four years of age as well as the normal hearing group. Those values of the children with the implanted group under four years old were closer to those of the children with the normal hearing. As to the F2, there was no significant difference among implanted groups. However, it was shown that the vowel space for the implanted groups regardless the operation age indicated much smaller than that for the normal hearing children. This acoustic results suggest that CI surgery would be much more effective if it is done under the age of four years old.

주성분 분석을 이용한 펄스형 전자기장 자극을 통해 DNCB로 유발된 아토피성 피부염의 개선 효과 분석

이지영,김준영,이예린,김고은,이용흠,양세정,Lee, Jiyoung,Kim, Jun-Yong,Lee, Yerin,Kim, Ko Eun,Lee, Yongheum,Yang, Sejung 대한의용생체공학회 2021 의공학회지 Vol.42 No.3

Atopic dermatitis (AD), a chronic inflammatory skin disease, is characterized by itchy and age-dependent lesions. Previous studies have shown that pulsed electromagnetic field (PEMF) significantly improved chronic ulcers and ununited fractures, providing an evidence for the application of PEMF in resolving inflammation caused by AD. This study investigated the anti-inflammatory effect of PEMF on DNCB-induced AD in animal models. Five male hairless mice (6 weeks old) per group were assigned to a normal group, a sham group, and two PEMF groups (15Hz, 75Hz). Mice were treated with 2,4-Dinitrochlorobenzene (DNCB) to induce uniform AD among all groups excluding a normal group. To examine the inflammatory progress and the improvement of AD after the PEMF stimulation, images are taken with various cameras for non-invasive evaluation and the results are expressed using principal component analysis (PCA) for visualization. The results of this study demonstrated that PEMF effectively improved skin lesions without the use of drugs.

후속 출산을 포기한 한 자녀 어머니들의 임신․출산 및 양육경험에 대한 질적 분석

진경선(Kyong-sun Jin),김고은(Ko Eun Kim) 한국보육지원학회 2020 한국보육지원학회지 Vol.16 No.4

Objective: The present study aimed to explore the experiences of mothers who have abandoned their additional birth plans since their first child was born. Methods: During in-depth interviews, mothers were asked to recall their own experiences of motherhood. The interview data were analyzed using the grounded theory. Results: The central phenomenon was ‘The burden of raising a child is too heavy for mothers to carry alone.’ The causal conditions were ‘First experience: Unpredictable life’, ‘Physical and psychological difficulty’, and ‘Spouse’s absence.’The contextual conditions were ‘Expectations and reality of parenting’ and ‘Workplace conditions.’ The mothers used interaction strategies of ‘Defusing conflict only on a surface level: Giving up’, ‘Reliance on grandmothers’, and ‘Downgrading career aspirations.’ These strategies were mediated by intervening conditions, ‘Stereotypes and experiences of non-family nanny’, ‘Child’s development’, and ‘Family conflict.’ The results were ‘Endless guilt’, ‘Ambivalence between independence versus interdependence’ and ‘Unfairness: Why only me?’ Finally, the process of psychological conflict was identified to account for the steps leading mothers to give up on their birth plans. Conclusion/Implications: During the first experience of motherhood, mothers’ conflict gets escalated despite their struggles. These experiences might discourage their additional birth plans. These results provide implications for policies to increase fertility rates.

펀치 생검으로는 정확히 진단되지 않았으나 더모스코피를 통해 확진에 도움이 된 표재성 기저세포암 1예

박태준 ( Tae Jun Park ),김고은 ( Ko Eun Kim ),정재영 ( Jae Young Jeong ),유화정 ( Hwa Jung Ryu ),손상욱 ( Sang Wook Son ),김일환 ( Il-hwan Kim ),문혜림 ( Hye Rim Moon ) 대한피부과학회 2020 大韓皮膚科學會誌 Vol.58 No.6

Basal cell carcinoma is a common cancer and has been reported to account for approximately 80% of non-melanoma skin cancers. Superficial basal cell carcinoma occurs mainly in the trunk or limbs and is characterized by clinical features of scaly erythema with or without epidermal atrophy. These clinical features require differentiation from those of other benign and malignant skin diseases. Recently, specific dermoscopic findings of basal cell carcinoma have been helpful for diagnosis. Common dermoscopic findings of superficial basal cell carcinoma include superficial telangiectasia and maple leaf-like areas. Herein, we report a case of superficial basal cell carcinoma that was not diagnosed by punch biopsy but by dermoscopy. (Korean J Dermatol 2020;58(6):419∼422)

망막비허혈 신생혈관녹내장환자에서 안압하강치료만으로 신생혈관 소실

이상욱(Sang Wook Lee),김고은(Ko Eun Kim) 대한안과학회 2020 대한안과학회지 Vol.61 No.3

목적: 인공수정체홍채고정술 후 발생한 신생혈관녹내장환자에서 원인 질환에 대한 치료 없이 안압하강치료만으로 홍채 및 전방각의 신생혈관이 호전된 1예를 보고하고자 한다. 증례요약: 양안 백내장수술을 받은 74세 여자 환자가 3일 전부터 시작된 좌안 통증 및 편두통을 주소로 내원하였다. 초진 시 좌안 최대교정시력은 0.9, 안압은 38 mmHg였다. 세극등현미경검사 시 좌안 홍채 전반에 분포된 신생혈관과 홍채 위아래 부분에 polypropylene 실매듭이 관찰되었다. 전방각경검사 시 좌안 모든 사분면의 신생혈관 및 아래 사분면의 국소적 주변홍채앞유착이 관찰되었다. 안저검사에서 시신경 하측 시신경유두테의 얇아진 소견 및 망막신경섬유층 손상이 관찰되었고, 형광안저혈관조영술에서는 망막미세동맥류 이외 특이 소견은 없었다. 좌안 신생혈관녹내장 진단하에 안압하강제만을 점안하며 경과 관찰하였고, 치료 시작 6개월 후 안압은 10 mmHg였고, 홍채 및 전방각 신생혈관은 소실되었다. 결론: 망막의 허혈성 병변이 원인이 아닌 신생혈관녹내장환자에서 완전 폐쇄각 상태가 아니며 즉각적인 원인 제거 치료가 어려운 경우, 안압하강치료를 우선적으로 시행하며 경과 관찰할 수 있겠다. Purpose: To report a case of neovascular glaucoma after intraocular lens iris fixation, in which the neovascularization of the iris and the anterior chamber improved with only intraocular pressure (IOP) lowering agents, without treatment of the underlying cause. Case summary: A 74-year-old woman who had undergone bilateral cataract surgery presented with left ocular pain and headache that started 3 days previously. At the initial examination, the best-corrected visual acuity was 0.9, and the IOP was 38mmHg in the left eye. Slit-lamp examination of the left eye revealed diffuse iris neovascularization and several polypropylene suture knots fixated in the superior and inferior iris. Gonioscopic examination revealed angle neovascularization in all quadrants, with focal peripheral anterior synechia in the inferior quadrant. Fundus examination presented inferior neuroretinal rim thinning and an inferior retinal nerve fiber layer defect in the left eye. Fluorescent angiography showed no ischemic retinal lesions, with the exception of several retinal microaneurysms. Six months after topical IOP-lowering treatment in the left eye, the IOP was 10 mmHg, and neovascularization of the iris and angle had regressed completely. Conclusions: In the case of early-stage neovascular glaucoma with partial angle closure not associated with retinal ischemia, IOP-lowering treatment can be effective without other invasive procedures.

마이토마이신C를 병용한 아메드밸브삽입술에서 콜라겐 기질 삽입 여부에 따른 수술 성공률 비교

김용현(Yong Hyun Kim),김고은(Ko Eun Kim),김청운(Chungwoon Kim),안재홍(Jae Hong Ahn) 대한안과학회 2021 대한안과학회지 Vol.62 No.10

목적: 녹내장 환자에서 시행한 mitomycin-C (MMC)를 병용한 아메드밸브삽입술에서 콜라겐 기질 삽입 여부에 따른 수술 성공률을 비교해보고자 한다. 대상과 방법: 아메드밸브삽입술 시행 후 최소 1년 이상 관찰이 가능하였던 108명 108안을 대상으로 후향적 의무기록 분석을 통한 연구를 진행하였다. 콜라겐 기질을 삽입한 군은 55안, 대조군은 53안이었다. 안압하강제 사용 여부와 관계없이 안압이 연속하여 2회 이상 18 mmHg보다 높거나 5 mmHg보다 낮게 측정될 때를 수술 실패로 정의하였다. 결과: 콜라겐 기질 삽입군과 대조군 모두에서 술 전에 비하여 술 후 안압 및 안압하강제 개수가 유의하게 감소하였다(모두 p<0.001). 양 군 간의 술 후 안압 및 안압하강제 개수에는 차이가 없었다. Kaplan-Meier 생존분석 결과 녹내장수술 후 1년 누적 성공률은 콜라겐 기질 삽입군에서 78.2%, 대조군에서 79.2%였고, 양 군 간 유의한 차이는 없었다(p=0.54). 고안압기의 발생만이 수술 실패와 통계적으로 유의한 연관성을 보였다(hazard ratio=3.81, 95% confidence interval=1.72-8.41, p<0.001). 관을 전방에 삽입한 군이 섬모체고랑에 삽입한 군에 비하여 술 후 1년 뒤 의미 있는 시력저하를 보였으나(p=0.011), 시력저하와 관련된 위험인자 분석 시 두 군 간에 유의한 차이를 보이는 요인은 없었다. 결론: 녹내장 환자에서 시행한 MMC를 병용한 아메드밸브삽입술에서 콜라겐 기질 삽입 여부에 따른 1년간의 수술 성공률의 차이는 없는 것으로 보인다. Purpose: To compare the surgical outcomes of adjunctive mitomycin-C (MMC) Ahmed valve implantation with and without collagen matrix insertion. Methods: We retrospectively reviewed 108 eyes of 108 patients who underwent Ahmed valve implant surgery with adjunctive MMC. Collagen matrix insertion/Ahmed valve implant surgery (CM-AGV) was performed on 55 eyes, while conventional Ahmed valve implant surgery (AGV) was performed on 53 eyes. We defined surgical failure as an intraocular pressure (IOP) > 18 mmHg or <5 mmHg on two or more consecutive visits, regardless of medication status. Results: After surgery, the IOP and number of topical medications required fell significantly (compared with the preoperative period) in both groups (both p < 0.001); these findings did not significantly differ between groups. The cumulative surgical success rates at 1 year did not significantly differ between groups (78.2% vs. 79.2%, p = 0.54). The only risk factor significantly associated with surgical failure was a postoperative hypertensive phase. Anterior chamber (compared with sulcus) tube placement was significantly associated with visual acuity loss at 1 year postoperatively, but this did not significantly differ between groups. Conclusions: At the 1-year follow-up after Ahmed implant surgery with adjunctive MMC, the success rates of surgery with and without collagen matrix insertion were similar. J Korean Ophthalmol Soc 2021;62(10):1388-1396