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Correlation between dermal thickness and scar formation in female patients after thyroidectomy
김홍일,곽찬이,김효영,이형석,박은주,김정훈,박진형 대한두개안면성형외과학회 2018 Archives of Craniofacial Surgery Vol.19 No.2
Background: Minimizing scarring has long been a challenge in plastic surgery. Factors affecting scar formation are well known, but the effect of some patient-specific factors such as dermal thickness remains unverified. Management of factors predictive of scarring can improve postoperative patient satisfaction and scar treatment. Methods: For 3 years, we used ultrasonography to measure dermal thickness in female patients who had undergone thyroidectomy for cancer at our hospital. We confirmed the influence of dermal thickness on hypertrophic scar formation and the Patient and Observer Scar Assessment Scale scar score 6 months after surgery. Results: There was a positive correlation between dermal thickness and scar score (p<0.05), and dermal thickness appears to be a cause of hypertrophic scar formation (p<0.05). Conclusion: Thick dermis was found to cause poor scar formation and hypertrophic scarring. Prediction of factors that can influence scar formation can be used to educate patients before surgery and can help in scar management and improvement in patient satisfaction.Skinfold thickness / Hypertrophic cicatrix Background: Minimizing scarring has long been a challenge in plastic surgery. Factors affecting scar formation are well known, but the effect of some patient-specific factors such as dermal thickness remains unverified. Management of factors predictive of scarring can improve postoperative patient satisfaction and scar treatment. Methods: For 3 years, we used ultrasonography to measure dermal thickness in female patients who had undergone thyroidectomy for cancer at our hospital. We confirmed the influence of dermal thickness on hypertrophic scar formation and the Patient and Observer Scar Assessment Scale scar score 6 months after surgery. Results: There was a positive correlation between dermal thickness and scar score (p<0.05), and dermal thickness appears to be a cause of hypertrophic scar formation (p<0.05). Conclusion: Thick dermis was found to cause poor scar formation and hypertrophic scarring. Prediction of factors that can influence scar formation can be used to educate patients before surgery and can help in scar management and improvement in patient satisfaction.
Staphylococcal Scalded Skin Syndrome in a Healthy Adult: Easy to Misdiagnose
김홍일,곽찬이,박언주 대한수부외과학회 2018 대한수부외과학회지 Vol.23 No.4
A 60-year-old male presented with a three-month history of redness and swelling on his left little finger. His medical his-tory was not informative. Wound culture revealed methicillin-resistant Staphylococcus aureus. After vancomycin admin-istration, the skin lesions became worse and whole body bullae and desquamation occurred. This was initially suspected to be a drug eruption; thus, we switched antibiotics from vancomycin to teicoplanin. However, biopsy revealed Staphy-lococcal scalded skin syndrome (SSSS). After several days, generalized skin symptoms improved. The patient recovered and is in good physical health without recurrence six months later. We describe a localized form of SSSS, which is very rare in healthy adults. Consequently, there is a high risk of misdiagnosis. Thus, we report a rare case of SSSS in a healthy adult and the importance of early histological examination for accurate diagnosis.
Functional Analysis and Validation of a UAM Integrated Flight Management (UIFM) System
이영재,곽찬,배상열,박규리,이현준,이재우 한국항공우주학회 2024 International Journal of Aeronautical and Space Sc Vol.25 No.2
A real-time flight management system needs to be established to allow urban air mobility (UAM) vehicles to fly safely at low altitudes in areas containing many obstacles. In this study, a UAM integrated flight management (UIFM) system is designed to manage the flight operations of UAM vehicles. Depending on the stakeholders involved, the UIFM system may be composed of various modules, such as the UAM air traffic management (UATM), UAM ground traffic management (UGTM), and UAM flight operations management (UFOM) modules. The tasks and functions of these three modules were analyzed and defined, and the functions at the initial stage of development were implemented in the form of software. This software was then applied to an operational digital twin (ODT) system equipped with a simulation environment. Operational procedures were established to validate the suitability of the route adherence monitoring (RAM) function, and this validation process was executed using the ODT system. As a result, it was found that the RAM function of the UIFM system operated appropriately according to the scenarios considered.