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심부정맥 혈전증의 도관유도 혈전용해술 또는 약물기계적 혈전제거술 후에 하대정맥 여과기 제거율과 임상적인 특징
노효근(Hyo Keun No),김중석(Joong Suck Kim),김장용(Jang Yong Kim),김경래(Kyung Rae Kim),신석환(Seok-Hwan Shin),안승익(Seung-Ik Ahn),조영업(Young Up Cho),김세중(Sei Joong Kim),이건영(Keon-Young Lee),허윤석(Yoon-Seok Hur),최선근(Sun Keu 대한외과학회 2010 Annals of Surgical Treatment and Research(ASRT) Vol.79 No.6
Purpose: Inferior vena cava (IVC) filter is commonly practiced to prevent pulmonary embolism during endovascular therapy of deep vein thrombosis (EndoDVT). When the thrombus is trapped inside the filter during intervention, its removal is quite challenging. The purpose of this study is to determine retrieval rates of IVC filter after EndoDVT and its characteristics. Methods: Patients who underwent EndoDVT in Inha Unversity Hospital from June 2004 to May 2009 were reviewed retrospectively. Retrievable IVC filter was inserted before EndoDVT. EndoDVT was done by catheter directed thrombolysis or pharmacomechanical thrombectomy using urokinase. IVC filter retrieval was decided according to computed tomography after 2 weeks. Results: 126 patients were treated with EndoDVT. Optease (n=101) and Tulip (n=25) IVC filters were inserted. IVC filters were retrieved in 42.9% (54/126). There was no IVC filter related complication during its insertion and removal. IVC filter was not retrieved in 72 patients. Reasons for its failure include residual thrombosis in IVC filter (n=28), high risk for recurrent DVT (n=34), massive pulmonary embolism (n=8), and death (n=2). Residual thrombus inside IVC filter disappeared in 5 patients during 6-month follow up. Conclusion: IVC filters retrieval rate after EndoDVT was 42.9%. This can be improved by thorough patient follow up and extended retrievability.
Posterior Reversible Encephalopathy Syndrome in a Critically Ill Postoperative Patient
Min Ae Keum,Hyo Keun No,Choong Wook Lee,전상범,홍석경 대한중환자의학회 2015 Acute and Critical Care Vol.30 No.1
Posterior reversible encephalopathy syndrome (PRES) is a transient condition characterized by altered mental status, seizure, headache,and visual disturbance with typical neuro-imaging findings in the bilateral parieto-occipital regions. Clinicians should be aware of this syndrome because delayed diagnosis and treatment result in irreversible neurologic deficits. We present the case of a 77-year-old male diagnosed with PRES in the setting of postoperative critical illness caused by small-bowel strangulation.
Hak-Jae Lee,Hyo-Keun No,Nak-Joon Choi,Hyun-Woo Sun,Jae-Suk Lee,Yoon-Joong Jung,Suk-Kyung Hong 대한외과학회 2020 Annals of Surgical Treatment and Research(ASRT) Vol.98 No.3
Purpose: Unstable pelvic fracture with bleeding can be fatal, with a mortality rate of up to 40%. Therefore, early detection and treatment are important in unstable pelvic trauma. We investigated the early predictive factors for possible embolization in patients with hemodynamically unstable pelvic trauma. Methods: From January 2011 to December 2013, 46 patients with shock arrived at a single hospital within 24 hours after injury. Of them, 44 patients underwent CT scan after initial resuscitation, except for 2 who were dead on arrival. Nine patients with other organ injuries were excluded. Seventeen patients underwent embolization. A single radiologist measured the width (longest length in axial view) and length (longest length in coronal view) of pelvic hematoma on CT scans. Demographic, clinical, and radiological data were reviewed retrospectively. Results: Among 35 patients with hemodynamically unstable pelvic fracture, 22 (62.9%) were men. Width (P = 0.002) and length (P = 0.006) of hematoma on CT scans were significantly different between the embolization and nonembolization groups. The predictors of embolization were width of pelvic hematoma (odds ratio [OR], 1.07; P = 0.028) and female sex (OR, 10.83; P = 0.031). The cutoff value was 3.35 cm. More embolization was performed (OR, 12.00; P = 0.003) and higher mortality was observed in patients with hematoma width >3.35 cm (OR, 4.96; P = 0.048). Conclusion: Patients with hemodynamically unstable pelvic trauma have a high mortality rate. CT is useful for the initial identification of the need for embolization among these patients. The width of pelvic hematoma can predict possible embolization in patients with unstable pelvic trauma.
Norbornene 기능화 MWNT 제조 및 DCPD와의 나노복합재료
노흔효,양광,조동환,이종근,No, Heun Hyo,Yang, Guang,Cho, Donghwan,Lee, Jong Keun 한국섬유공학회 2016 한국섬유공학회지 Vol.53 No.3
Multi-walled carbon nanotubes (MWNT) were grafted with norbornene groups (MWNT-g-Norbornene) and incorporated into dicyclopentadiene (DCPD) to produce a nanocomposite cured by ring-opening metathesis polymerization (ROMP). The functionalization of the MWNT surfaces during the modification procedure was confirmed by means of FT-IR spectroscopy. Tensile test results showed that the toughness of the DCPD/MWNT-g-Norbornene nanocomposites was considerably increased by about 220%, compared to that of neat DCPD. The enhanced toughness could be a result of increased dispersion of MWNT-g-Norbornene and increased interfacial adhesion between the functionalized MWNT and DCPD, as revealed by FE-SEM images of the fractured surfaces.
금민애 ( Min Ae Keum ),노효근 ( Hyo Keun No ),선병주 ( Byung Joo Sun ),홍석경 ( Suk Kyung Hong ) 대한외상학회 2015 大韓外傷學會誌 Vol.28 No.2
Traumatic tricuspid regurgitation is a rare complication of blunt chest trauma caused by chordal rupture, anterior papillary muscle rupture and anterior leaflet tear. Since clinical symptoms are vague, early diagnosis is difficult and some patient exhibit symptoms of right heart failure. Right heart failure has been the traditional indication for surgical treatment, such as tricuspid valve replacement. Recently, early detection using transthoracic echocardiography and surgical treatment, like valve repair, prior to overt right heart failure have been shown to better prognosis. We report a case of traumatic tricuspid regurgitation with chordal rupture in patient due to traffic accident. [ J Trauma Inj 2015; 28: 67-70 ]
한국인 여성에서 자궁경부암의 위험요인에 관한 환자-대조군 연구
구혜원,유근영,김동현,송용상,박노현,강순범,이효표,안윤옥,이채언,Koo, Hye-Won,Yoo, Keun-Young,Kim, Dong-Hyun,Song, Yong-Sang,Park, No-Hyun,Kang, Soon-Beom,Lee, Hyo-Pyo,Ahn, Yoon-Ok,Lee, Chae-Un 대한예방의학회 1996 예방의학회지 Vol.29 No.2
A hospital-based case-control study was carried out to investigate the risk factors of uterine cervical cancer in Korea. Information on a wide-range of life-styles, which might be related with uterine cervix cancer, has been routinely collected through a dual application of the self-administered questionnaire and the direct interview by a well-trained nurse at the Department of Gynecology, Seoul National University Hosiptal since 1992. The number of cervical cancer cases, histologically confirmed at the hospital, were 284. Included were 939 women as controls, who were free of past history of any malignancies. Adjusted odds ratio and 95% confidence limits were based on the unconditional logistic regression model. The multivariate logistic model was constructed under the consideration of biologic characteristics on the natural history of the malignancy. In the multivariate results, the uterine cervical cancer risk was higher in women of shorter height$(P_{trend}<0.05)$, less educated spouse$(P_{trend}<0.001)$(0.001), multiple marriages(adjusted OR=2,70, 95% C.I. $1.64\sim4.47$), ever had a family history (adjusted OR=2.14., 95% C.I. $1.18\sim3.89$), multiparity$(P_{trend}<0.001)$, and early age at first $(P_{trend}<0.001)$. These results strongly suggest that the uterine cervix cancer might be related to the reproductive factors, and probably with sexual behaviour of both women and men in Korea.
악성 종양의 추적 관찰 중 PET-CT에서 발견된 갑상선의 우연종
김중석,최소영,노효근,김세중,김윤정<SUP>1<,SUP>,현인영<SUP>2<,SUP>,김영모<SUP>3<,SUP>,조영업,Joong Suck Kim,M,D,So-young Choi,M,D,Ph,D,Hyo Keun No,M,D,Sei Joong Kim,M,D,Ph,D,Youn Jeong Kim,M,D,Ph,D,<SUP>1<,SUP>,In Young Hyun 대한갑상선-내분비외과학회 2010 The Koreran journal of Endocrine Surgery Vol.10 No.4
Purpose: The incidence of thyroid cancer is increasing in Korea, partially owing to the development of diagnostic tools. Positron emission tomography (PET)-computed tomography (CT), in particular, has generally been used for evaluation of metastasis and follow-up of malignancy. Methods: We retrospectively investigated 2,833 patients with PET-CT for metastasis work-up or cancer follow-up, which was performed between January 1998 and May 2008 at Inha University Hospital. Of them, abnormal thyroid findings were discovered in 181 patients and we studied the result of further evaluation or follow-up PET-CT. Results: Thyroid cancer was diagnosed in 26 patients, including metastatic cancer in 3 patients, and non-operated primary cancer in 2 patients. Other 21 patients received operation, which in all histopathologically revealed papillary carcinoma. The mean age of the 21 patients was 55.4 years. Nine patients had a history of radiotherapy. The site of malignant nodule was discordant between PET-CT and histopathologic result in 6 patients. The mean size of malignant nodules was 9.45 mm (0.1∼23 mm) with microcarcinoma in 10 patients (47.6%). The mean interval between diagnoses was 15.8 months, and in 4 patients operations for two malignancies were performed in a same day. The incidence of thyroid cancer was significantly high in female patients, but the differences of incidence among different cancer groups were not significant for female patients. Conclusion: Early diagnosis of synchronous or secondary thyroid cancer by PET-CT in cancer patients can make early treatment and better strategies for multiple malignancies possible. (Korean J Endocrine Surg 2010;10:249-255)