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( Joo Hyung Lee ),( Jisun Lee ),( Miran Kim ),( Kyungjoo Hwang ) 대한산부인과학회 2016 대한산부인과학회 학술대회 Vol.102 No.-
Objective: To evaluate the effectiveness of hysteroscopic coagulation in treating symptomatic post cesarean section scar defect. Design: Retrospective study, Case series Patients: Four patients with post cesarean section scar defect who experienced postmenstrual abnormal uterine bleeding were retrospectively analyzed. Intervention: Four patients were diagnosed with post cesarean section scar defect by a transvaginal ultrasonography. Hysteroscopic surgery was performed in four patients with monopolar coagulation of the vessels on the defect site. Intrauterine device was inserted immediately following the hysteroscopic surgery and oral contraceptive medication was applied for one month in three patients. Results: The average age of the patients was 39.5 years and the average parity was 2.5. Three patients had history of two previous cesarean deliveries and one patient had three previous cesarean section. Transvaginal ultrasonography was performed in all patients and revealed post cesarean scar defects. Three patients showed no additional uterine pathology and one patient had adenomyosis. The average size of the defect was 9.4 mm wide and 9.13 mm in depth. All patients experienced postmenstrual abnormal uterine bleeding for average of 14 days accompanied by vaginitis or menorrhagia in two patients. No complications were observed. Postmenstrual abnormal bleeding as well as accompanying symptoms associated with vaginitis and menorrhagia disappeared following hysteroscopic electrocoagulation of the scar defect. Conclusion: Hysteroscopic coagulation of the cesarean section scar defect is a simple method to successfully treat the symptomatic cesarean section scar defects. Intrauterine device followed by oral contraceptive can prolong the effect hysteroscopic management of the defect. Hysteroscopic treatment may serve as an alternative method to repair the cesarean section scar defect other than laparoscopic or vaginal approach.
능동위상배열 다기능레이다의 부배열 수신신호 모의를 위한 레이다환경신호모의장비 개발
김국현,유경주,이경민,길성준,양은호,이광철,이희영,Kim, Gukhyun,Yoo, Kyungjoo,Lee, Kyungmin,Gil, Sungjun,Yang, Eunho,Lee, Kwangchul,Lee, Heeyoung 한국군사과학기술학회 2020 한국군사과학기술학회지 Vol.23 No.5
In this paper, the contents of the development of RESS(Radar Environmental Signals Simulator) for the test of active phased array multi-function radar are described. The developed RESS can simulate multiple target environments, such as target/jamming/missile response/cluster signals, by using received radar operational information and simulated scenario. It can also modulate frequency, phase, gain, timing on all waveforms operated by multi-function radar and simulated two targets and one jamming in the beam. The RESS can be used to perform functional and performance verification of the active phased array multi-function radar with sub-array receiving structures.
Kyungjoo Kim,Minyoung Kim,Kyung-Eun Lee 한국영양학회 2010 Nutrition Research and Practice Vol.4 No.2
The purposes of this study were to assess hospital foodservice quality and to identify causes of quality problems and improvement strategies. Based on the review of literature, hospital foodservice quality was defined and the Hospital Foodservice Quality model was presented. The study was conducted in two steps. In Step 1, nutritional standards specified on diet manuals and nutrients of planned menus, served meals, and consumed meals for regular, diabetic, and low-sodium diets were assessed in three general hospitals. Quality problems were found in all three hospitals since patients consumed less than their nutritional requirements. Considering the effects of four gaps in the Hospital Foodservice Quality model, Gaps 3 and 4 were selected as critical control points (CCPs) for hospital foodservice quality management. In Step 2, the causes of the gaps and improvement strategies at CCPs were labeled as “quality hazards” and “corrective actions”, respectively and were identified using a case study. At Gap 3, inaccurate forecasting and a lack of control during production were identified as quality hazards and corrective actions proposed were establishing an accurate forecasting system, improving standardized recipes, emphasizing the use of standardized recipes, and conducting employee training. At Gap 4, quality hazards were menus of low preferences, inconsistency of menu quality, a lack of menu variety, improper food temperatures, and patients’ lack of understanding of their nutritional requirements. To reduce Gap 4, the dietary departments should conduct patient surveys on menu preferences on a regular basis, develop new menus, especially for therapeutic diets, maintain food temperatures during distribution, provide more choices, conduct meal rounds, and provide nutrition education and counseling. The Hospital Foodservice Quality Model was a useful tool for identifying causes of the foodservice quality problems and improvement strategies from a holistic point of view.