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폐쇄성 수면 무호흡 환자에서 비수술적 체중 감량 치료 전・후의 주간 졸림증 및 피로도 변화
강성구,김세홍,박서진,김하나,박용진,송상욱 대한비만학회 2011 The Korean journal of obesity Vol.20 No.4
연구배경: 비만으로 생길 수 있는 합병증은 다양한데, 특히 호흡기계 합병증으로 가장 흔하게 볼 수 있는 것이수면 중 상기도 폐쇄로 인한 증상, 즉 코골이이고, 이것이 지속될 경우 수면 무호흡증으로 이어질 수 있다. 이번연구에서 폐쇄성 수면 무호흡 환자에서 비 수술적 체중 감량을 통한 주간 졸림증, 피로도 개선 양상 및 동맥 경화도와 활성 산소, 항산화능력의 변화 여부를 살펴보고자 한다. 방법: 이비인후과에서 폐쇄성 수면 무호흡증으로 진단되어 체중 감량을 위해 의뢰된 21명의 성인을 대상으로 12주간의 비 수술적 체중 감량 치료를 시행하였다. 식이 요법과 운동 요법을 기본으로 하여 약제가 필요하다고 판단될 경우 약물 요법(orlistat, XenicalⓇ 또는 Sibutramine, ReductilⓇ)을 시행하였다. 치료 전, 후의 주간 졸림증의 평가는 ESS (Epworth Sleepiness Scale)로, 피로도 평가는 FSS (Fatigue Severity Scale)로 평가하였고, 그 외 동맥경직도, 활성 산소 및 항산화력을 측정하여 비교하였다. 결과: 본 연구에 참여한 환자들에 대한 체중 감량 치료 12주 후, 1~12.9 kg까지(원래 체중의 1.5~14.2% 감량)대부분 체중 감량이 이루어졌다. 체중 감량 치료 후 ESS는 치료 전에 비해 유의하게 개선되었으며(치료 전 9.42 ±3.78, 치료 후 5.67 ± 3.77, P = 0.001), FSS 역시 치료 전에 비해 치료 후 유의하게 감소되었다.(치료 전 3.42 ±1.59, 치료 후 2.52 ± 1.10, P = 0.041) 동맥 경직도 및 활성산소, 항산화력은 치료 전과 후에 차이를 보이지 않았다. 결론: 본 연구를 통해 폐쇄성 수면 무호흡을 호소하는 환자에서 12주간의 비수술적 체중 감량 치료를 통해 주간졸림증 및 피로도 개선을 확인 할 수 있었다. 추후 활성산소나 항산화력, 동맥 경직도의 치료 전, 후의 변화 등에대한 추가적인 연구가 필요할 것으로 생각된다.
강성구,김영훈,한미선,최인희,이정진,이종협 한국물리학회 2006 Current Applied Physics Vol.6 No.1l
Gold nanorods were prepared by the seed-mediated method described by Jana et al. Eects of reaction temperature and hydroxyl-amine concentration on the aspect ratio and yield of the gold nanorods were investigated by UVVisNIR spectroscopy and transmis-that the addition of hydroxylamine drastically improved the yield. In addition, Au/Pt hybrid nanodumbbells were synthesized by con-trolling the growth conditions. The growth mechanism of the gold nanorods is discussed with respect to the reaction temperature andhydroxylamine concentration of reaction medium.
강성구,신진희,송상욱 대한의학회 2010 Journal of Korean medical science Vol.25 No.8
Worry is a generalized psychological phenomenon seen among most people. When worry is excessive and nearly uncontrollable, people usually suffer psychological pain. The Penn State Worry Questionnaire for Children (PSWQ-C) was developed to measure worry objectively. It comprises 14 items for measuring excessive, generalized, and uncontrollable worry in children. This study, conducted with a large group of elementary children (3rd through 6th graders, ages 8-12 yr; N=973), investigated the reliability and validity of the Korean version of the Penn State Worry Questionnaire for Children (PSWQ-CK). The PSWQCK showed high reliability by test-retest and also excellent internal consistency results. To examine the validity of the PSWQ-CK, we calculated its correlation with the Revised Children’s Manifest Anxiety Scale (RCMAS). The PSWQ-CK had a higher correlation with the worry/oversensitivity factor than with other subscales of the RCMAS, and it showed no correlation with the lie factor. When 3 reversed PSWQ-CK items were eliminated, the instrument showed higher internal consistency. However, this did not improve its correlation with other anxiety-measuring tools. In conclusion, the PSWQ-CK’s reliability and validity were satisfactory, and it is a useful tool for objectively measuring the worry of Korean children of this age group.
Investigation on shape variation of Au nanocrystals
강성구,최인희,이정진,이종협,김영훈 한국물리학회 2008 Current Applied Physics Vol.8 No.6
A variety of shapes, such as rod, tripod, /φ-shape and cube, of Au nanocrystals were synthesized by employing different reaction conditions. The nanocrystals and their shape variation were characterized by transmission electron microscopy and UV–vis spectrophotometry. The evolution of shape was accomplished by controlling the parameters used in their synthesis, the concentration of reducing agent and surface capping agent. The effect of synthetic parameters on shape was explored, to determine suitable conditions for producing each shape of nanocrystals. Nanocrystals with different shapes have different plasmon bands in the visible region of the spectrum, which is a valuable property for sensor applications. A variety of shapes, such as rod, tripod, /φ-shape and cube, of Au nanocrystals were synthesized by employing different reaction conditions. The nanocrystals and their shape variation were characterized by transmission electron microscopy and UV–vis spectrophotometry. The evolution of shape was accomplished by controlling the parameters used in their synthesis, the concentration of reducing agent and surface capping agent. The effect of synthetic parameters on shape was explored, to determine suitable conditions for producing each shape of nanocrystals. Nanocrystals with different shapes have different plasmon bands in the visible region of the spectrum, which is a valuable property for sensor applications.
Robot-Assisted Laparoscopic Distal Ureterectomy and Ureteral Reimplantation
강성구,최훈,고영휘,태범식,조석,안홍재,채지윤,강석호,천준 대한비뇨의학회 2009 Investigative and Clinical Urology Vol.50 No.9
We report here on our technique and outcomes of the first case of robot-assisted laparoscopic distal ureterectomy with a bladder cuff excision and ureteroneocystostomy. A 74-year-old male patient who had a distal ureter tumor underwent robot-assisted transperitoneal distal ureterectomy. After distal ureterectomy with bladder cuff excision was performed, direct ureteroneocystostomy was performed. The whole procedure was successfully performed by using the robot without conversion to open surgery. The total operative time was 207 minutes, and the estimated blood loss was 30 ml. The final pathological examination showed stage T2 invasive transitional cell carcinoma of the distal ureter. The patient's postoperative recovery was uneventful and the bladder cuff was free of tumor. Robot-assisted laparoscopic distal ureterectomy with ureteroneocystostomy is safe and feasible and offers patients the advantages of minimally invasive surgery.
강성구,최재원 한국사회체육학회 2002 한국사회체육학회지 Vol.18 No.2
The Relations between the Satisfaction of Participationin Extra-Class Activities of Teenagers
강성구,고영휘,강석호,김진,김철환,박홍석,문두건,이정구,김제종,천준 대한비뇨의학회 2010 Investigative and Clinical Urology Vol.51 No.10
We report a case of tuberous sclerosis associated with two histologically different renal cell carcinomas (RCCs) and multiple angiomyolipomas (AMLs) in the same kidney. A 43-year-old female was admitted to our hospital with left flank pain and a huge palpable mass in the left flank area. Abdominal computed tomography revealed two concurrent RCCs and multiple AMLs in the left kidney. Because of the clinical suspicion of RCC, the patient underwent left radical nephrectomy. On gross examination, the total size of the resected left kidney was 30.5x17x8 cm. Microscopically, the upper pole tumor features were consistent with chromophobe RCC and the midpole tumor was a clear-cell RCC. The multifocal masses in the remaining remnant parenchyma were AMLs. Six months after surgery, the patient is healthy without signs of tumor recurrence.