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부비동 내시경수술과 코성형술의 동시 시행의 효용성과 한계
박보나,유윤종,문수진,윤병기,진홍률 대한이비인후과학회 2014 대한이비인후과학회지 두경부외과학 Vol.57 No.7
Background and Objectives Combined endoscopic sinus surgery (ESS) and rhinoplasty may benefit patients but can pose a considerable task to the surgeon at the same time. The aim of this study is to analyze the surgical outcomes of the concurrent ESS and rhinoplasty with emphasis on the efficacy and limitation. Subjects and Method Consecutive 21 patients who underwent concurrent ESS and rhinoplasty (combined group) were identified. For comparison, rhinoplasty group who had only rhinoplasty and ESS group who had only ESS over the same period were selected. Medical records, endoscopic findings, and CT scans were reviewed. A telephone survey was done to evaluate subjective outcomes of the surgery. Objective aesthetic outcomes of rhinoplasty were evaluated by comparing the preoperative and postoperative photos by two rhinoplasty surgeons. Results In the combined group, ten patients (24%) had ESS-related complications and one patient (5%) had rhinoplasty-associated complications. On the other hand, only one patient (5%) had recurred rhinosinusitis in the ESS group but three patients (14%) had complications including revision surgery in rhinoplasty group. Subjective functional satisfaction score after ESS and subjective aesthetic satisfaction score after rhinoplasty did not show any significant difference between the combined group and each matching group. Objective aesthetic evaluation did not show any difference either. Conclusion Concurrent ESS and rhinoplasty have similar subjective functional improvement and objective surgical outcome compared with ESS alone or rhinoplasty alone. However, concurrent surgery had a tendency to show poorer surgical outcome in ESS than in rhinoplasty warranting a cautious approach with patient selection. Korean J Otorhinolaryngol-Head Neck Surg 2014;57(7):460-5
박보나,김형규,김동욱,김광현 대한이비인후과학회 2014 대한이비인후과학회지 두경부외과학 Vol.57 No.8
We report a recently encountered case of angioleiomyoma in the tracheal wall. The patient was a 40-year-old man. The main symptoms were coarse breathing sound and dyspnea on exertion. Computed tomography revealed a 2.0 cm-sized, well-defined enhancing round mass originating in the tracheal wall. The tumor was successfully removed with wedge shaped tracheal cartilage resection performed under general anesthesia, and the tracheal wall was closed primarily. Histopathologically, the tumor was composed of proliferating smooth muscle fibers and dilated blood vessels which were well-circumscribed. Angioleiomyoma is a type of benign tumor found rarely in the head and neck area. Complete surgical removal is the treatment of choice as it yields very low recurrence rates. Korean J Otorhinolaryngol-Head Neck Surg 2014;57(8):556-8
난치성 메니에르병에서 내림프낭 감압술 후 발생한 고도 난청
박보나,박경태,최현석,구자원 대한평형의학회 2014 Research in Vestibular Science Vol.13 No.3
Endolymphatic sac decompression (ESD) is indicated in intractable Meniere’s disease patients with serviceable hearing. A 43-year-old man presented with recurrent vertigo and fluctuating right hearing loss that had been intractable to medical treatment. ESD was performed for the purpose of vertigo control with hearing preservation. Positional vertigo with profound hearing loss developed immediate after surgery and positional vertigo was resolved within days. Following paralytic vestibulopathy with positive sign on head thrust test also resolved after 2 weeks, while sensorineural hearing loss was not recovered to preoperative level during 1 year of follow up. Recurrent vertigo attacks were developed again 1 year after the operation. Hearing preservation was not always guaranteed in ESD. Furthermore, chance of hearing loss should be included in informed consent though the procedure is purposed for hearing preservation.
박보나,강수정,박명숙 대한근관절건강학회 2023 근관절건강학회지 Vol.30 No.2
Purpose: This study aimed to explore the experience of Fracture Liaison Service (FLS) coordinator nurses in a hospitalsetting. Methods: An in-depth interview was done using a semi-structured questionnaire on 4 FLS coordinator nursesbetween August 2022 and May 2023. A qualitative content analysis method was used for the data analysis. Results: Threethemes of the experience of FLS coordinator were “The absence of identity of FLS coordinator,” “struggling with theapproach of creating something out of nothing,” and “improvement of training and system to establish FLS coordinatorrole.” Conclusion: This study identified three themes about the experience of FLS coordinator nurses in hospital setting. This finding is expected to be useful in developing education programs for FLS coordinator nurses.
고준위방사성폐기물 심부시추공 처분 기술의 현황과 전망 – 대구경 장심도 시추공 거동 특성을 중심으로
박보나,권새하,민기복 한국자원공학회 2017 한국자원공학회지 Vol.54 No.4
This technical note describes the status and outlook of high-level radioactive waste disposal in a deep borehole, which is considered as an alternative way to isolate spent fuel and/or high-level radioactive waste permanently. The deep borehole disposal (DBD) concept consists of drilling into deep crystalline basement rock, emplacing waste canisters in the lower disposal zone of the borehole, and sealing and plugging the upper portion of the borehole through backfill. To make this concept viable, we should develop a new drilling technology that can achieve relatively larger bottom hole diameter drilling. It is expected that the large diameter drilling contributes to unpredictable borehole instability, e.g., severe borehole breakout or lost circulation, which takes up the additional cost. Furthermore, lack of scientific drilling experience in Korea, compared with other countries with rich experience and obstacle to find an appropriate site still remains as a challenge to overcome. 본 기술보고에서는 고준위방사성폐기물 혹은 사용후핵연료를 생태계로부터 영구격리 시키기 위한 방안으 로 생태계와의 이격거리가 멀고 투수율이 매우 낮은 지층에 처분하기 때문에 안전성 측면에서 유리하다고 평가되는 심부시추공 처분 기술의 현황 및 전망에 대해 알아보았다. 결정질 기반암이 존재하는 심도까지 시추하여 하부 처분구 간에 고준위방사성폐기물 처분용기를 적치하고 상부 구간은 벤토나이트 등으로 완전히 밀봉시키는 이 방식은 아직 기술적으로 실현가능성이 검증되지 못하였다. 현존하는 시추기술로 이 방식을 실현가능하게 하려면 시추공의 직경 을 최소 두배로 늘리는 새로운 기술이 개발되어야 한다. 이때 시추공 직경 증가에 따른 크기효과가 시추 시 불안정성을 야기하여 시추비용이 증가할 것으로 예상된다. 또한 선진국에 비해 부족한 기술 축적 현황과 심부시추공 처분장 건설 에서 적합한 부지확보의 어려움은 극복해야 할 과제로 남아있다.