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Song HH, Park H, Cho D, Bang HI, Oh HJ, Kim J. Optimization of a Protocol for Isolating Cell-free DNA From Cerebrospinal Fluid. Ann Lab Med 2024; 44:294-298. [PMID: 38151854 PMCID: PMC10813833 DOI: 10.3343/alm.2023.0267] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 11/01/2023] [Accepted: 12/08/2023] [Indexed: 12/29/2023] Open
Abstract
A standardized protocol for the isolation of cell-free DNA (cfDNA) from cerebrospinal fluid (CSF) is lacking. Therefore, we established a cfDNA isolation protocol optimized for clinical CSF specimens, integrating acceptable modifications and using artificial CSF generated from remnant CSF spiked with reference cell-free tumor DNA (ctDNA). We compared the isolation yields of in vitro diagnostic (IVD)-certified column-based (CB) and magnetic bead-based (MB) isolation. Furthermore, we modified both methods, including pre- and post-elution steps. To confirm ctDNA integrity and quantify the variant allele frequency after isolation, we performed droplet digital PCR (ddPCR) targeting IDH1 R132C in the reference ctDNA. MB isolation had a higher yield than CB isolation (P<0.0001), and post-isolation vacuum increased the final concentration in both methods, with little effect on cfDNA integrity. Our study provides a protocol to maximize CSF-ctDNA concentrations in IVD testing and future studies.
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Affiliation(s)
- Ho Hyun Song
- Department of Interdisciplinary Program in Biomedical Science, Graduate School, Soonchunhyang University, Asan, Korea
| | - Hyeran Park
- Department of Neurosurgery, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Doohwan Cho
- Department of Laboratory Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Hae In Bang
- Department of Laboratory Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Hyuk-Jin Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Jieun Kim
- Department of Laboratory Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea
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Yun GY, Ahn JM, Park JH, Oh HJ, Shim JJ, Yoon SM. Preliminary Report of Fully Endoscopic Microvascular Decompression. J Korean Neurosurg Soc 2024:jkns.2024.0003. [PMID: 38583999 DOI: 10.3340/jkns.2024.0003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 04/02/2024] [Indexed: 04/09/2024] Open
Abstract
Objective Microscopic microvascular decompression (MVD) has been considered to be a useful treatment modality for medically refractory hemifacial spasm (HFS) and trigeminal neuralgia (TN). But, the advent of the endoscopic era has presented new possibilities to MVD surgery. While the microscope remains a valuable tool, the endoscope offers several advantages with comparable clinical outcomes. Thus, fully endoscopic MVD (E-MVD) could be a reasonable alternative to microscopic MVD. This paper explores the safety and efficacy of the fully E-MVD technique. Methods A single-center retrospective study was conducted in 25 patients diagnosed with HFS between September 2019 and July 2023. All surgeries were performed by a single neurosurgeon using the fully E-MVD technique without any assistance of a microscope. The study reviewed intraoperative brainstem auditory evoked potentials and disappearance of the lateral spread response. Outcomes were assessed based on the patients' clinical status immediately after surgery and at their last follow-up. Complications, including facial palsy, hearing loss, ataxia, dysphagia, palsy of other cranial nerves, and cerebrospinal fluid (CSF) leakage, were also examined. Results The most common offending artery was the anterior inferior cerebellar artery (AICA) in 15 cases (60.0%), followed by the posterior inferior cerebellar artery (PICA) in 8 cases (32.0%), vertebral artery (VA) in 1 case (4.0%), tandem lesions involving the AICA and VA in 1 case (4.0%). Ten patients (40.0%) had pre-operative facial palsy on the ipsilateral side, and 8 patients (32.0%) experienced delayed facial palsy on the ipsilateral side, from which they fully recovered by the last follow-up. The median operation time was 105 minutes. All patients were symptom free immediately after surgery and at the last follow-up. One patient experienced a permanent complication, such as high-frequency hearing loss, from which he partially recovered over time. Conclusion Fully E-MVD demonstrated similar clinical outcomes to microscopic MVD. It offered a similar complication rate, shorter operation time, and a panoramic view with a smaller craniectomy size. Although there is a learning curve associated with fully E-MVD, it presents a viable alternative in the endoscopic era.
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Affiliation(s)
- Gi-Yong Yun
- Department of Neurosurgery, College of Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Jae-Min Ahn
- Department of Neurosurgery, College of Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Jong-Hyun Park
- Department of Neurosurgery, College of Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Hyuk-Jin Oh
- Department of Neurosurgery, College of Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Jai-Joon Shim
- Department of Neurosurgery, College of Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Seok Mann Yoon
- Department of Neurosurgery, College of Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
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Shim JH, Yun GY, Ann JM, Park JH, Oh HJ, Shim JJ, Yoon SM. Navigation guided small craniectomy and direct cannulation of pure isolated sigmoid sinus for treatment of dural arteriovenous fistula. J Cerebrovasc Endovasc Neurosurg 2024; 26:71-78. [PMID: 37718482 PMCID: PMC10995474 DOI: 10.7461/jcen.2023.e2023.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/20/2023] [Accepted: 07/25/2023] [Indexed: 09/19/2023] Open
Abstract
Dural arteriovenous fistula (DAVF) is a rare condition affecting approximately 1.5% of 1,000,000 individuals annually. It frequently occurs in the transsigmoid and cavernous sinuses. An isolated sigmoid sinus is extremely rare and is treated by performing transfemoral transvenous embolization along the opposite transverse sinus. A 69-year-old woman presented with asymptomatic Borden type III/Cognard type III DAVF involving an isolated sigmoid sinus. She underwent a staged operation in which a navigation system was used to expose the sigmoid sinus in the operating room before transferring the patient to the angio suite for transvenous embolization. Various modalities have been used to treat DAVF, including surgical disconnection, transarterial embolization, transvenous embolization, and stereotactic radiosurgery. However, treating DAVF cases where the affected sinus is isolated can be challenging because an easily accessible surgical route may not be available. In this case, direct sinus cannulation and transvenous embolization were the most effective treatments.
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Affiliation(s)
- Jun Ho Shim
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Gi Yong Yun
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Jae-Min Ann
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Jong-Hyun Park
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Hyuk-Jin Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Jai-Joon Shim
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Seok Mann Yoon
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
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Ho Shim J, Park JH, Yong Yun G, Ahn JM, Oh HJ, Shim JJ, Mann Yoon S. Strategy of stretched Coils: Insights from a single center experience. J Clin Neurosci 2024; 120:204-212. [PMID: 38281474 DOI: 10.1016/j.jocn.2024.01.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 01/15/2024] [Accepted: 01/17/2024] [Indexed: 01/30/2024]
Abstract
OBJECTIVE A stretched coil, characterized by excessive elongation within the parent artery during a coil embolization procedure, poses a significant risk of forming a thrombus. This study reports on cases of stretched coils spanning 16 years and discusses effective assessment methods and treatment strategies. METHOD Retrospective analysis of the institutional database comprising 14 cases where stretched coils were observed during coil embolization procedures was conducted, starting from January 2007. RESULTS Among the 14 cases, four involved coil embolization for subarachnoid hemorrhage due to ruptured aneurysm, while the remaining cases were unruptured aneurysms. Starting in 2017, vaso-computed tomography (vaso-CT) was employed in nine cases to evaluate the proximal end of the stretched coils. Reimplantation was performed in 3 cases. Among them, two cases were relieved by pushing the coil delivery wire or microwire, while one case underwent balloon-assisted reimplantation. The stretched coils were removed in three cases by pulling. A rescue gooseneck microsnare technique was applied in one case. The stent was fixed in five cases. In two cases, no additional procedures were performed. Thrombosis is a potential complication that occurred in three cases of stretched coils. CONCLUSION Many studies have addressed coil stretching and introduced various rescue methods, but relying solely on angiography for diagnosis or applying an inappropriate rescue technique can lead to ischemic stroke. This study emphasized the importance of vaso-CT as a tool for accurately identifying the proximal end of a stretched coil. Additionally, we aimed to facilitate the selection of an appropriate rescue technique.
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Affiliation(s)
- Jun Ho Shim
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Jong-Hyun Park
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea.
| | - Gi Yong Yun
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Jae-Min Ahn
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Hyuk-Jin Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Jai-Joon Shim
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Seok Mann Yoon
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea
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Choo YH, Seo Y, Oh HJ. Deep Sedation in Traumatic Brain Injury Patients. Korean J Neurotrauma 2023; 19:185-194. [PMID: 37431376 PMCID: PMC10329893 DOI: 10.13004/kjnt.2023.19.e19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/03/2023] [Accepted: 04/04/2023] [Indexed: 07/12/2023] Open
Abstract
Traumatic brain injury (TBI) is one of the leading causes of mortality and disability in adults. In cases of severe TBI, preventing secondary brain injury by managing intracranial hypertension during the acute phase is a critical treatment challenge. Among surgical and medical interventions to control intracranial pressure (ICP), deep sedation can provide comfort to patients and directly control ICP by regulating cerebral metabolism. However, insufficient sedation does not achieve the intended treatment goals, and excessive sedation can lead to fatal sedative-related complications. Therefore, it is important to continuously monitor and titrate sedatives by measuring the appropriate depth of sedation. In this review, we discuss the effectiveness of deep sedation, techniques to monitor the depth of sedation, and the clinical use of recommended sedatives, barbiturates, and propofol in TBI.
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Affiliation(s)
- Yoon-Hee Choo
- Department of Neurosurgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Youngbeom Seo
- Department of Neurosurgery, Yeungnam University Hospital, Yeungnam Universtiy College of Medicine, Daegu, Korea
| | - Hyuk-Jin Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, College of Medicine, Soonchunhyang University, Cheonan, Korea
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Lee BJ, Jeong JH, Oh HJ. Advancements in Neurointensive Care Medicine for the Treatment of Central Nervous System Injuries. Korean J Neurotrauma 2023; 19:125. [PMID: 37431375 PMCID: PMC10329890 DOI: 10.13004/kjnt.2023.19.e30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 06/16/2023] [Accepted: 06/18/2023] [Indexed: 07/12/2023] Open
Affiliation(s)
- Byung-Jou Lee
- Department of Neurosurgery, Inje University Ilsan Paik Hospital, Goyang, Korea
| | - Je Hoon Jeong
- Department of Neurosurgery, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Hyuk-Jin Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
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Kim MS, Go SI, Wee CW, Lee MH, Kang SG, Go KO, Kwon SM, Kim W, Dho YS, Park SH, Seo Y, Song SW, Ahn S, Oh HJ, Yoon HI, Lee SW, Lee JH, Cho KR, Choi JW, Hong JB, Hwang K, Park CK, Lim DH. The Korean Society for Neuro-Oncology (KSNO) Guideline for the Management of Brain Tumor Patients During the Crisis Period: A Consensus Survey About Specific Clinical Scenarios (Version 2023.1). Brain Tumor Res Treat 2023; 11:133-139. [PMID: 37151155 PMCID: PMC10172008 DOI: 10.14791/btrt.2023.0010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 03/31/2023] [Accepted: 04/04/2023] [Indexed: 05/09/2023] Open
Abstract
BACKGROUND During the coronavirus disease 2019 (COVID-19) pandemic, there was a shortage of medical resources and the need for proper treatment guidelines for brain tumor patients became more pressing. Thus, the Korean Society for Neuro-Oncology (KSNO), a multidisciplinary academic society, has undertaken efforts to develop a guideline that is tailored to the domestic situation and that can be used in similar crisis situations in the future. As part II of the guideline, this consensus survey is to suggest management options in specific clinical scenarios during the crisis period. METHODS The KSNO Guideline Working Group consisted of 22 multidisciplinary experts on neuro-oncology in Korea. In order to confirm a consensus reached by the experts, opinions on 5 specific clinical scenarios about the management of brain tumor patients during the crisis period were devised and asked. To build-up the consensus process, Delphi method was employed. RESULTS The summary of the final consensus from each scenario are as follows. For patients with newly diagnosed astrocytoma with isocitrate dehydrogenase (IDH)-mutant and oligodendroglioma with IDH-mutant/1p19q codeleted, observation was preferred for patients with low-risk, World Health Organization (WHO) grade 2, and Karnofsky Performance Scale (KPS) ≥60, while adjuvant radiotherapy alone was preferred for patients with high-risk, WHO grade 2, and KPS ≥60. For newly diagnosed patients with glioblastoma, the most preferred adjuvant treatment strategy after surgery was radiotherapy plus temozolomide except for patients aged ≥70 years with KPS of 60 and unmethylated MGMT promoters. In patients with symptomatic brain metastasis, the preferred treatment differed according to the number of brain metastasis and performance status. For patients with newly diagnosed atypical meningioma, adjuvant radiation was deferred in patients with older age, poor performance status, complete resection, or low mitotic count. CONCLUSION It is imperative that proper medical care for brain tumor patients be sustained and provided, even during the crisis period. The findings of this consensus survey will be a useful reference in determining appropriate treatment options for brain tumor patients in the specific clinical scenarios covered by the survey during the future crisis.
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Affiliation(s)
- Min-Sung Kim
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Se-Il Go
- Division of Hematology and Oncology, Department of Internal Medicine, Institute of Health Science, Gyeongsang National University Changwon Hospital, Gyeongsang National University College of Medicine, Changwon, Korea
| | - Chan Woo Wee
- Department of Radiation Oncology, Yonsei Cancer Center, Heavy Ion Therapy Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Min Ho Lee
- Department of Neurosurgery, Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - Seok-Gu Kang
- Department of Neurosurgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Kyeong-O Go
- Department of Neurosurgery, Gyeongsang National University Hospital, Gyeongsang National University College of Medicine, Jinju, Korea
| | - Sae Min Kwon
- Department of Neurosurgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
| | - Woohyun Kim
- Department of Neurosurgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Yun-Sik Dho
- Neuro-Oncology Clinic, National Cancer Center, Goyang, Korea
| | - Sung-Hye Park
- Department of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Youngbeom Seo
- Department of Neurosurgery, Yeungnam University Hospital, Yeungnam University College of Medicine, Daegu, Korea
| | - Sang Woo Song
- Department of Neurological Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Stephen Ahn
- Department of Neurosurgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hyuk-Jin Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Hong In Yoon
- Department of Radiation Oncology, Yonsei Cancer Center, Heavy Ion Therapy Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Sea-Won Lee
- Department of Radiation Oncology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Joo Ho Lee
- Department of Radiation Oncology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Kyung Rae Cho
- Department of Neurosurgery, Konkuk University Medical Center, Seoul, Korea
| | - Jung Won Choi
- Department of Neurosurgery, Brain Tumor Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Je Beom Hong
- Department of Neurosurgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kihwan Hwang
- Department of Neurosurgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Chul-Kee Park
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.
| | - Do Hoon Lim
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
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Kim MS, Go SI, Wee CW, Lee MH, Kang SG, Go KO, Kwon SM, Kim W, Dho YS, Park SH, Seo Y, Song SW, Ahn S, Oh HJ, Yoon HI, Lee SW, Lee JH, Cho KR, Choi JW, Hong JB, Hwang K, Park CK, Lim DH. The Korean Society for Neuro-Oncology (KSNO) Guideline for the Management of Brain Tumor Patients During the Crisis Period: A Consensus Recommendation Using the Delphi Method (Version 2023.1). Brain Tumor Res Treat 2023; 11:123-132. [PMID: 37151154 PMCID: PMC10172012 DOI: 10.14791/btrt.2023.0009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 04/04/2023] [Indexed: 05/09/2023] Open
Abstract
BACKGROUND During the coronavirus disease 2019 (COVID-19) pandemic, the need for appropriate treatment guidelines for patients with brain tumors was indispensable due to the lack and limitations of medical resources. Thus, the Korean Society for Neuro-Oncology (KSNO), a multidisciplinary academic society, has undertaken efforts to develop a guideline that is tailored to the domestic situation and that can be used in similar crisis situations in the future. METHODS The KSNO Guideline Working Group was composed of 22 multidisciplinary experts on neuro-oncology in Korea. In order to reach consensus among the experts, the Delphi method was used to build up the final recommendations. RESULTS All participating experts completed the series of surveys, and the results of final survey were used to draft the current consensus recommendations. Priority levels of surgery and radiotherapy during crises were proposed using appropriate time window-based criteria for management outcome. The highest priority for surgery is assigned to patients who are life-threatening or have a risk of significant impact on a patient's prognosis unless immediate intervention is given within 24-48 hours. As for the radiotherapy, patients who are at risk of compromising their overall survival or neurological status within 4-6 weeks are assigned to the highest priority. Curative-intent chemotherapy has the highest priority, followed by neoadjuvant/adjuvant and palliative chemotherapy during a crisis period. Telemedicine should be actively considered as a management tool for brain tumor patients during the mass infection crises such as the COVID-19 pandemic. CONCLUSION It is crucial that adequate medical care for patients with brain tumors is maintained and provided, even during times of crisis. This guideline will serve as a valuable resource, assisting in the delivery of treatment to brain tumor patients in the event of any future crisis.
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Affiliation(s)
- Min-Sung Kim
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Se-Il Go
- Division of Hematology and Oncology, Department of Internal Medicine, Institute of Health Science, Gyeongsang National University Changwon Hospital, Gyeongsang National University College of Medicine, Changwon, Korea
| | - Chan Woo Wee
- Department of Radiation Oncology, Yonsei Cancer Center, Heavy Ion Therapy Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Min Ho Lee
- Department of Neurosurgery, Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - Seok-Gu Kang
- Department of Neurosurgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Kyeong-O Go
- Department of Neurosurgery, Gyeongsang National University Hospital, Gyeongsang National University College of Medicine, Jinju, Korea
| | - Sae Min Kwon
- Department of Neurosurgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
| | - Woohyun Kim
- Department of Neurosurgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Yun-Sik Dho
- Neuro-Oncology Clinic, National Cancer Center, Goyang, Korea
| | - Sung-Hye Park
- Department of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Youngbeom Seo
- Department of Neurosurgery, Yeungnam University Hospital, Yeungnam University College of Medicine, Daegu, Korea
| | - Sang Woo Song
- Department of Neurological Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Stephen Ahn
- Department of Neurosurgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hyuk-Jin Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Hong In Yoon
- Department of Radiation Oncology, Yonsei Cancer Center, Heavy Ion Therapy Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Sea-Won Lee
- Department of Radiation Oncology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Joo Ho Lee
- Department of Radiation Oncology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Kyung Rae Cho
- Department of Neurosurgery, Konkuk University Medical Center, Seoul, Korea
| | - Jung Won Choi
- Department of Neurosurgery, Brain Tumor Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Je Beom Hong
- Department of Neurosurgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kihwan Hwang
- Department of Neurosurgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Chul-Kee Park
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.
| | - Do Hoon Lim
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
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Kang BM, Oh HJ, Ryu KH, Ahn JM. Treatment of pituitary adenoma with spontaneous cerebrospinal rhinorrhea using nasoseptal flap, two case reports. Surg Neurol Int 2022; 13:262. [PMID: 35855160 PMCID: PMC9282767 DOI: 10.25259/sni_61_2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 05/21/2022] [Indexed: 11/06/2022] Open
Abstract
Background: Postoperative cerebrospinal fluid (CSF) leakages are well documented, but pituitary adenoma with spontaneous CSF rhinorrhea as the initial symptoms are extremely rare. The objective of this study is to report two rare cases of pituitary adenoma with spontaneous CSF rhinorrhea successfully operated by endoscopic transsphenoidal approach with vascularized nasoseptal flap (NSF). Case Description: A 70-year-old woman presented with a 6-month history of watery rhinorrhea and posterior nasal drip that worsened when her head leaning forward. Sella magnetic resonance image (MRI) demonstrated pituitary macroadenoma (3.4 × 2.7 cm) invading cavernous sinus, clivus, and sphenoid sinus. A 47-year-old woman presented with a 10-month history of watery rhinorrhea and posterior nasal drip. Sella MRI demonstrated pituitary macroadenoma (6.3 × 4.6 cm) invading cavernous sinus, clivus, sphenoid sinus, and middle fossa. Both patients underwent endoscopic endonasal transsphenoidal operation and skull base reconstruction with vascularized NSF. The postoperative clinical course was uneventful and CSF rhinorrhea disappeared completely. Conclusion: Pituitary adenoma should be suspected if there is a watery CSF rhinorrhea that occurs without a history of trauma or nasal disease. In addition, effective treatment can be performed using NSF, a technique for endoscopic skull base reconstruction.
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Affiliation(s)
- Beom Mo Kang
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea,
| | - Hyuk-Jin Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea,
| | - Kwang-Hui Ryu
- Department of Otorhinolaryngology, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea
| | - Jae-Min Ahn
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea,
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Oh HJ, Hwang SC. Supraorbital Endoscopic Evacuation for Traumatic Intracerebral Hematomas in the Frontal Lobe. J Korean Neurosurg Soc 2022; 65:846-852. [PMID: 35577758 DOI: 10.3340/jkns.2021.0248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 03/02/2022] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE Traumatic intracranial hematomas have been rarely evacuated by endoscopic surgery. The frontal lobe is the usual location for the traumatic intracerebral hematoma (TICH). Endoscopic evacuation for the frontal TICHs via an eyebrow incision is to be presented as minimally invasive surgery. METHODS Thirteen patients with frontal TICHs were managed with endoscopic hematoma evacuation via eyebrow incision. After making the incision in the lateral eyebrow, a small frontal craniotomy was made, and the hematoma was evacuated under direct visualization of a rigid endoscope. No catheter was placed. Orbital rim resection, hematoma evacuation rate, surgical complications, and outcome at discharge were analyzed. RESULTS Men were 11 and the mean age was 54 years old (27 - 86). Orbitotomy was performed in 4 patients, and no effect on the hematoma evacuation rate was observed. More than 80% of the hematoma volume was successfully removed in 10 cases. Hematoma configuration was not related to the hematoma evacuation rate. None of the patients underwent revision operation or decompressive craniectomy. CONCLUSIONS Endoscopic evacuation of the TICHs with the supraorbital approach may be a good method to evacuate the hematoma located in the frontal base.
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Affiliation(s)
- Hyuk-Jin Oh
- Departement of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Sun-Chul Hwang
- Department of Neurosurgery, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
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11
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Oh HJ, Shim JJ, Ahn JM, Oh JS, Yoon SM. Multiple Cerebral Hemorrhages Caused by Paradoxical Reperfusion Injury After Cranioplasty. Korean J Neurotrauma 2022; 18:335-340. [PMID: 36381453 PMCID: PMC9634289 DOI: 10.13004/kjnt.2022.18.e28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/21/2022] [Accepted: 04/14/2022] [Indexed: 11/18/2022] Open
Abstract
Cranioplasty-related reperfusion injury has rarely been reported. Although there are several hypotheses, particularly regarding the mechanisms of the event, clear evidence is lacking. Here, we report the case of an 84-year-old man with traumatic intracranial hemorrhage and subdural hematoma who underwent decompressive craniectomy and hematoma evacuation in the right hemisphere. After 45 days, cranioplasty was performed using titanium. A preoperative perfusion study with 99m-Tc-HMPAO brain single-photon emission tomography revealed diffuse hypoperfusion in the left cerebral hemisphere with decreased vascular reserve. After cranioplasty, multiple cerebral hemorrhages were observed on immediate postoperative computed tomography. Cerebral hemorrhage eventually improved without surgery. Here, we report a case with findings revealed through perfusion studies before and after surgery.
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Affiliation(s)
- Hyuk-Jin Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Jai-Joon Shim
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Jae-Min Ahn
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Jae-Sang Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Seok-Mann Yoon
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
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12
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Kwon SM, Lee MH, Seo Y, Kim YI, Oh HJ, Kim KH, Choi KS, Chong K. A Radiological Assessment of Chronic Subdural Hematomas. Korean J Neurotrauma 2022; 18:12-21. [PMID: 35557646 PMCID: PMC9064761 DOI: 10.13004/kjnt.2022.18.e24] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 04/15/2022] [Accepted: 04/17/2022] [Indexed: 11/15/2022] Open
Abstract
Chronic subdural hematoma (CSDH), which generally occurs in elderly patients, is a frequently diagnosed condition in neurosurgical departments. Computed tomography (CT) and magnetic resonance imaging (MRI) are the most preferred diagnostic modalities for CSDH assessment. With early diagnosis and adequate management, CSDH may show favorable prognosis in majority of the patients; however, recurrence after surgery can occur in a significant number of patients. The recently increasing number of CSDH studies could reveal the prognostic factors affecting CSDH recurrence. Particularly, radiological characteristics regarding the internal architecture of CSDH are considered closely associated with recurrence in surgically treated CSDH patients. In this literature review, we evaluated the various diagnostic modalities of CSDH and its radiological characteristics on CT and MRI. Furthermore, we summarized the prognostic factors of recurrence for the hematoma type based on the radiological findings.
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Affiliation(s)
- Sae Min Kwon
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea
- Department of Neurosurgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
| | - Min Ho Lee
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea
- Department of Neurosurgery, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Youngbeom Seo
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea
- Department of Neurosurgery, Yeungnam University Hospital, Yeungnam Universtiy College of Medicine, Daegu, Korea
| | - Young Il Kim
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea
- Department of Neurosurgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hyuk-Jin Oh
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Kyung Hwan Kim
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea
- Department of Neurosurgery, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Kyu-Sun Choi
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea
- Department of Neurosurgery, Hanyang University Medical Center, Hanyang University College of Medicine, Seoul, Korea
| | - Kyuha Chong
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea
- Department of Neurosurgery, Brain Tumor Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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13
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Oh HJ, Jeong JH. The Present and Future of Clinical Practice Guidelines for Neuro-Traumatology in Korea. Korean J Neurotrauma 2022; 18:1-2. [PMID: 35557634 PMCID: PMC9064744 DOI: 10.13004/kjnt.2022.18.e16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 03/21/2022] [Indexed: 11/15/2022] Open
Affiliation(s)
- Hyuk-Jin Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Je Hoon Jeong
- Department of Neurosurgery, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
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14
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Oh HJ, Kim KH, Kim YI, Seo Y, Choi KS, Lee MH, Kwon SM, Chong K. Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society: A Review of a Group That Writes and Inherits the Thoughts and Will of the Society. Korean J Neurotrauma 2022; 18:3-11. [PMID: 35557649 PMCID: PMC9064755 DOI: 10.13004/kjnt.2022.18.e22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 04/12/2022] [Indexed: 11/15/2022] Open
Affiliation(s)
- Hyuk-Jin Oh
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Kyung Hwan Kim
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea
- Department of Neurosurgery, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Young Il Kim
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea
- Department of Neurosurgery, St. Vincent’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Youngbeom Seo
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea
- Department of Neurosurgery, Yeungnam University Hospital, Yeungnam Universtiy College of Medicine, Daegu, Korea
| | - Kyu-Sun Choi
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea
- Department of Neurosurgery, Hanyang University Medical Center, Hanyang University College of Medicine, Seoul, Korea
| | - Min Ho Lee
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea
- Department of Neurosurgery, Uijeongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sae Min Kwon
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea
- Department of Neurosurgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
| | - Kyuha Chong
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea
- Department of Neurosurgery, Brain Tumor Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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15
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Oh HJ, Seo Y, Choo YH, Kim YI, Kim KH, Kwon SM, Lee MH, Chong K. Clinical Characteristics and Current Managements for Patients with Chronic Subdural Hematoma : A Retrospective Multicenter Pilot Study in the Republic of Korea. J Korean Neurosurg Soc 2021; 65:255-268. [PMID: 34727680 PMCID: PMC8918242 DOI: 10.3340/jkns.2021.0138] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 07/21/2021] [Indexed: 11/27/2022] Open
Abstract
Objective Chronic subdural hematoma (CSDH) is a common disease in neurosurgical departments, but optimal perioperative management guidelines have not yet been established. We aimed to assess the current clinical management and outcomes for CSDH patients and identify prognostic factors for CSDH recurrence.
Methods We enrolled a total of 293 consecutive patients with CSDH who underwent burr hole craniostomy at seven institutions in 2018. Clinical and surgery-related characteristics and surgical outcomes were analyzed. The cohort included 208 men and 85 women.
Results The median patient age was 75 years. Antithrombotic agents were prescribed to 105 patients. History of head trauma was identified in 59% of patients. Two hundred twenty-seven of 293 patients (77.5%) had unilateral hematoma and 46.1% had a homogenous hematoma type. About 70% of patients underwent surgery under general anesthesia, and 74.7% underwent a single burr hole craniostomy surgery. Recurrence requiring surgery was observed in 17 of 293 patients (5.8%), with a median of 32 days to recurrence. The postoperative complication rate was 4.1%. In multivariate analysis, factors associated with CSDH recurrence were separated hematoma type (odds ratio, 3.906; p=0.017) and patient who underwent surgery under general anesthesia had less recurrence (odds ratio, 0.277; p=0.017).
Conclusion This is the first retrospective multicenter generalized cohort pilot study in the Republic of Korea as a first step towards the development of Korean clinical practice guidelines for CSDH. The type of hematoma and anesthesia was associated with CSDH recurrence. Although the detailed surgical method differs depending on the institution, the surgical treatment of CSDH was effective. Further studies may establish appropriate management guidelines to minimize CSDH recurrence.
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Affiliation(s)
- Hyuk-Jin Oh
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea.,Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, College of Medicine, Soonchunhyang University, Cheonan, Korea
| | - Youngbeom Seo
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea.,Department of Neurosurgery, Yeungnam University Hospital, Yeungnam Universtiy College of Medicine, Daegu, Korea
| | - Yoon-Hee Choo
- Department of Neurosurgery, Yeungnam University Hospital, Yeungnam Universtiy College of Medicine, Daegu, Korea.,Department of Intensive Care, Seoul National University Hospital, Seoul, Korea
| | - Young Il Kim
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea.,Department of Neurosurgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kyung Hwan Kim
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea.,Department of Neurosurgery, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Sae Min Kwon
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea.,Department of Neurosurgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
| | - Min Ho Lee
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea.,Department of Neurosurgery, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kyuha Chong
- Neurotrauma Clinical Practice Guidelines Committee of the Korean Neurotraumatology Society (KNTS-NCPGC), Seoul, Korea.,Department of Neurosurgery, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea.,Neurological Institute, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
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16
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Jo IY, Yeo SG, Oh HJ, Oh JS. Choroid plexus carcinoma with leptomeningeal spread in an adult: a case report and review of the literature. J Med Case Rep 2021; 15:286. [PMID: 34022951 PMCID: PMC8141193 DOI: 10.1186/s13256-021-02887-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 05/02/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Choroid plexus carcinoma is an intraventricular neoplasm originating from the choroid plexus epithelium and is of rare occurrence in adults. However, owing to the low prevalence of choroid plexus carcinoma, there is very limited information about the disease entity and treatment. Here we report a rare case of choroid plexus carcinoma in an adult patient. CASE PRESENTATION A 46-year-old South Korean (East Asian) male presented with low back pain, headache, and diplopia. Magnetic resonance imaging demonstrated enhancing mass lesion in the left trigone, cerebellar with leptomeningeal spread. Surgery was performed via left parietal craniotomy, and the lesion was histologically confirmed to be choroid plexus carcinoma. The patient received adjuvant craniospinal irradiation for remnant mass and leptomeningeal spread. Magnetic resonance imaging performed immediately after completion of the treatment revealed a partial decrease in the size of the tumor. However, the patient expired died as a result of acute respiratory distress syndrome before follow-up of long-term outcome. CONCLUSION Choroid plexus carcinoma with leptomeningeal spread in adults is very important for rapid diagnosis and treatment. In the case of the presence of leptomeningeal spread, craniospinal irradiation can be considered as a treatment method, but may have serious complications. Hence, the technique should be applied with care.
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Affiliation(s)
- In Young Jo
- Department of Radiation Oncology, Soonchunhyang University College of Medicine, Cheonan, Republic of Korea
| | - Seung-Gu Yeo
- Department of Radiation Oncology, Soonchunhyang University College of Medicine, Cheonan, Republic of Korea
| | - Hyuk-Jin Oh
- Department of Neurosurgery, Soonchunhyang University College of Medicine, Cheonan, Republic of Korea.
| | - Jae-Sang Oh
- Department of Neurosurgery, Soonchunhyang University College of Medicine, Cheonan, Republic of Korea
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17
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Kwon YE, Choi HY, Oh HJ, Ahn SY, Ryu DR, Kwon YJ. Vertebral fracture is associated with myocardial infarction in incident hemodialysis patients: a Korean nationwide population-based study. Osteoporos Int 2020; 31:1965-1973. [PMID: 32394062 DOI: 10.1007/s00198-020-05423-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 04/14/2020] [Indexed: 10/24/2022]
Abstract
UNLABELLED Chronic kidney disease (CKD)-mineral and bone disorder suggests that fragile bone and vascular disorder might be connected closely in CKD patients. In this study, fracture event was significantly associated with myocardial infarction (MI) in end-stage renal disease patients on hemodialysis (HD), especially for vertebral fractures. INTRODUCTION CKD-mineral and bone disorder is characterized by biochemical abnormalities, bone disorders, and vascular calcification. We aimed to verify the association between fracture and MI in CKD patients. METHODS Records for incident CKD stage 3 to 5 patients and patients who initiated HD between July 2014 and June 2018 were retrieved from the Korean Health Insurance Review & Assessment Service Database. Fractures were defined using diagnostic codes and were classified into vertebral, femoral, and other site fractures. MI was defined using a combination of MI diagnostic codes and related procedure codes. Multiple logistic regressions and 1:1 propensity score matching analysis were conducted. RESULTS A total of 38,935 patients (HD, 11,379; pre-dialysis CKD, 27,556) were included in this study. A total of 5,057 (13.0%) patients experienced fracture, and 1,431 (3.7%) patients had MI. Multiple logistic regression analysis showed that fracture was significantly associated with MI in the HD group (odds ratio (OR) 1.34, P = 0.024), but not in the pre-dialysis CKD group (OR 1.04, P = 0.701). After propensity score matching for age, gender, and diabetes mellitus between patients with and without fracture, fracture still significantly correlated with MI in HD patients (OR 1.47, P = 0.034) but not in patients with pre-dialysis CKD (OR 1.04, P = 0.751). Subgroup analysis by fracture site found that vertebral fracture was associated with MI in HD patients (OR 2.11, P = 0.024), but femoral or other site fractures were not. CONCLUSION In HD patients, fracture was significantly associated with MI, especially for vertebral fractures patients.
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Affiliation(s)
- Y E Kwon
- Department of Internal Medicine, Hanyang University College of Medicine, Myongji Hospital, Goyang-si, South Korea
| | - H Y Choi
- The Korean Society of Nephrology, Seoul, South Korea
| | - H J Oh
- Ewha Institute of Convergence Medicine and Research Institute for Human Health Information, Ewha Womans University, Seoul, South Korea
| | - S Y Ahn
- Department of Internal Medicine, Korea University College of Medicine, Seoul, South Korea
| | - D-R Ryu
- Department of Internal Medicine, Ewha Womans University College of Medicine, Seoul, South Korea.
| | - Y J Kwon
- Department of Internal Medicine, Korea University College of Medicine, Seoul, South Korea.
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18
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Ahn JM, Oh HJ, Oh JS, Yoon SM. Pituitary apoplexy causing acute ischemic stroke: Which treatment should be given priority. Surg Neurol Int 2020; 11:113. [PMID: 32494388 PMCID: PMC7265385 DOI: 10.25259/sni_82_2020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 03/20/2020] [Indexed: 11/07/2022] Open
Abstract
Background: Pituitary apoplexy is syndrome of sudden onset of headache, visual loss, pituitary dysfunction, and altered consciousness. Pituitary apoplexy followed by acute cerebral ischemia is extremely rare. Here, we introduced the case of successful surgical resection of pituitary adenoma which induced acute cerebral ischemia. Case Description: A 78-year-old man with a known pituitary macroadenoma presented with decreased consciousness and left hemiparesis. Magnetic resonance image (MRI) and computed tomography (CT) showed large pituitary macroadenoma with hemorrhage and diffusion-perfusion mismatch of right internal carotid artery (ICA) territory. Conventional angiography was done and severe stenosis of bilateral ICA and prominent flow delay of left ICA were noted at paraclinoid segment. Microscopic tumor mass removal with transsphenoidal approach was performed. Final pathological diagnosis was pituitary adenoma with apoplexy. Immediately after surgery, his symptoms were disappeared. Follow-up image studies revealed much improved perfusion in right ICA territory and patency of bilateral ICAs. Conclusion: Direct compression of ICA is rare complication of pituitary apoplexy, which caused cerebral ischemia. Conventional angiography should be necessary for accurate diagnosis and prompt surgical decompression should be the treatment of choice.
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Affiliation(s)
- Jae-Min Ahn
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Chungcheongnam-do-Korea, South Korea
| | - Hyuk-Jin Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Chungcheongnam-do-Korea, South Korea
| | - Jae-Sang Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Chungcheongnam-do-Korea, South Korea
| | - Seok-Mann Yoon
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Chungcheongnam-do-Korea, South Korea
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19
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Oh HJ, Yoon BH, Ha YC, Suh DC, Lee SM, Koo KH, Lee YK. The change of bone mineral density and bone metabolism after gastrectomy for gastric cancer: a meta-analysis. Osteoporos Int 2020; 31:267-275. [PMID: 31776636 DOI: 10.1007/s00198-019-05220-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 11/01/2019] [Indexed: 12/24/2022]
Abstract
UNLABELLED Bone mineral density (BMD) is significantly decreased after gastrectomy in patients with gastric cancer. Calcium malabsorption, secondary hyperparathyroidism, and dominant bone resorption appear to contribute to bone loss in these patients. Patients should undergo early surveillance and nutritional or pharmacologic intensive interventions for bone health. PURPOSE Survivorship care, including bone health, has become an important issue in gastric cancer. We performed a meta-analysis of the available observational studies to determine whether and how osteoporosis risk is increased after gastrectomy in patients with gastric cancer. METHODS A total of 1204 patients (802 men) from 19 cohort studies were included. We evaluated the prevalence of osteoporosis in postgastrectomy patients, comparing the incidence according to the type of gastrectomy and sex. Additionally, we evaluated changes in bone mineral density (BMD) and bone metabolism-related markers pre- to postoperatively and between patients who underwent gastrectomy and matched controls. Proportion meta-analysis was performed and pooled odds ratios (ORs) were calculated. RESULTS The pooled incidence estimate was 36% [95% confidence interval (CI), 32-40]. The incidence of osteoporosis was significantly higher in women than in men (OR = 1.90, p < 0.001) but was similar between partial and total gastrectomy groups (OR = 0.983, p = 0.939). BMD was significantly decreased, and calcium, phosphorous, and parathyroid hormone levels were significantly increased in patients after gastrectomy compared to those before gastrectomy. BMD and calcium and 25OH-vitamin D levels were significantly decreased, and parathyroid hormone and 1,25OH-vitamin D levels were significantly increased in the gastrectomy group compared to that in the control group. CONCLUSION We found that BMD is significantly decreased after gastrectomy in patients with gastric cancer. Vitamin D deficiency and secondary hyperparathyroidism are suggested to be common mechanism underlying BMD impairment. After resection, patients should undergo long-term nutritional and bone health surveillance, in addition to their oncological follow-up.
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Affiliation(s)
- H J Oh
- Division of Gastroenterology, Department of Internal Medicine, Center for Cancer Prevention and Detection, National Cancer Center, Goyang-si, Republic of Korea
| | - B-H Yoon
- Department of Orthopaedic Surgery, Inje University College of Medicine, Seoul Paik Hospital, Seoul, Republic of Korea
| | - Y-C Ha
- Department of Orthopaedic Surgery, College of Medicine, Chung-Ang University, Seoul, Republic of Korea
| | - D-C Suh
- College of Pharmacy, Chung-Ang University, Seoul, Republic of Korea
| | - S-M Lee
- College of Pharmacy, Daegu Catholic University , 13-13 Hayang-ro, Hayang-eup, Gyeongsan-si,Gyeongbuk, 38430, Republic of Korea.
| | - K-H Koo
- Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, 166 Gumi-ro, Bundang-gu, Seongnam-si, 463-707, Republic of Korea
- Department of Orthopedic Surgery, Seoul National University College of Medicine, 166 Gumi-ro, Bundang-gu, Seongnam-si, 463-707, Republic of Korea
| | - Y-K Lee
- Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, 166 Gumi-ro, Bundang-gu, Seongnam-si, 463-707, Republic of Korea.
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20
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Abstract
Though controversial, water fluoridation has been hailed as one of the top-ten public-health achievements of the 20th century in the United States of America. In this article, we aim to investigate the public sense of water fluoridation as reflected on Twitter, using data from 2009 to 2017. To this end, tweets related to water fluoridation were collected using queries such as "fluoridated water or fluoride water," "water fluoridation or fluoridation of water," and hashtags related to water fluoridation. The collected tweets (n = 218,748) were examined through informetric, linguistic (word sentiment, word frequency, and word network analyses), and issue tweet analyses. We found that Twitter users who tweeted about water fluoridation in English between 2009 and 2017 constituted about <0.01% of all users including non-English users. In their tweets, words such as "poison" and "waste" were the strong negative sentiment words most often used. Of the top 30 words most frequently used, words related to information sources on water fluoridation and the safety of water fluoridation appeared more often than words related to its efficacy. Additionally, the words related to information sources on water fluoridation and the safety of water fluoridation were found to be core terms in the sentences of tweet mentions. Our linguistic analyses indicate that Twitter users responded sensitively to words that emphasize negative aspects of fluoridation. This is clearly shown in our issue tweet analysis, where tweet mentions expressing negative opinions about water fluoridation accounted for at least 59.2% of all mentions. By contrast, <15% of tweet mentions were found to be positive. These findings suggest that professionals need to reevaluate the current state of online information about water fluoridation, and improve it in a way so that the public can easily access reliable information sources.
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Affiliation(s)
- H J Oh
- Department of Library and Information Science, Jeonbuk National University, Jeonju, Republic of Korea.,Institute of Medical Information Convergence Research in JBNU, Jeonju, Republic of Korea
| | - C H Kim
- Institute of Medical Information Convergence Research in JBNU, Jeonju, Republic of Korea.,Department of English Literature, Jeonbuk National University, Jeonju, Republic of Korea
| | - J G Jeon
- Institute of Medical Information Convergence Research in JBNU, Jeonju, Republic of Korea.,Department of Preventive Dentistry, School of Dentistry, BK21 plus program, Jeonbuk National University, Jeonju, Republic of Korea
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21
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Lee KS, Yoon SM, Oh JS, Oh HJ, Shim JJ, Doh JW. Causes and Trauma Apportionment Score of Chronic Subdural Hematoma. Korean J Neurotrauma 2018; 14:61-67. [PMID: 30402420 PMCID: PMC6218349 DOI: 10.13004/kjnt.2018.14.2.61] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Revised: 08/22/2018] [Accepted: 08/29/2018] [Indexed: 11/24/2022] Open
Abstract
Objective The pathophysiology of chronic subdural hematoma (CSH) is not yet clear. Trauma alone is not sufficient to result in CSH in young individuals, while a trivial injury can result in CSH in older adults. Although the causality and apportionment of trauma are important issues in CSH, especially in terms of insurance, it is too obscure to solve all struggles. Methods There are three key factors for producing CSH. First, CSH necessitates a potential subdural reservoir. Other important precipitating factors are trauma and coagulopathy. However, these factors are not sufficient to cause CSH development. The trauma apportionment score (TAS) can be used to compare the relative importance of these three factors. Here, we applied the TAS to 239 consecutive cases of CSH. We retrospectively obtained the patients' history and laboratory results from their medical records. Results The TAS ranged from −5 to 5. The most common score was 0. If we defined the cause of CSH as being combined when the TAS was 0, then the cause was combined in 30 cases (12.6%). If we extended the criteria for a combined cause from 0 to −1 to 1, the cause was combined in 107 cases (44.8%). Regardless of the criteria used, traumatic CSHs were more common than were spontaneous CSHs. Spontaneous CSHs were more common in older than in younger patients (p<0.01, Fisher's exact test). Conclusion The TAS is a useful tool for differentiating the causality of CSH.
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Affiliation(s)
- Kyeong-Seok Lee
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Seok-Mann Yoon
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Jae-Sang Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Hyuk-Jin Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Jae-Jun Shim
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Jae-Won Doh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
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Abstract
Traumatic optic neuropathy (TON) is an important cause of severe visual loss after blunt or penetrating head and facial trauma. High-dose steroids and surgical interventions have been applied in the indirect TON. However, there is no convincing evidence that results of the treatment have any strong benefits in terms of improvement of visual acuity. Nevertheless, surgical decompression should be considered in the case of a direct bony compression to the optic nerve and a progressive visual loss in indirect TON. Neurosurgeon should be aware the surgical indication, optimal timing and relevant technique for the optic canal (OC) decompression. In this review article, we will focus on the surgical approaches to the OC and how to decompress it.
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Affiliation(s)
- Hyuk-Jin Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Dong-Gyu Yeo
- Department of Neurosurgery, Soonchunhyang University Gumi Hospital, Gumi, Korea
| | - Sun-Chul Hwang
- Department of Neurosurgery, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
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Yoon GY, Oh HJ, Oh JS, Yoon SM, Bae HG. Gliosarcoma of Cerebello-Pontine Angle: A Case Report and Review of the Literature. Brain Tumor Res Treat 2018; 6:78-81. [PMID: 30381921 PMCID: PMC6212687 DOI: 10.14791/btrt.2018.6.e11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 08/18/2018] [Accepted: 08/31/2018] [Indexed: 11/20/2022] Open
Abstract
Gliosarcoma (GS), known as variant of glioblastoma multiforme, is aggressive and very rare primary central nervous system malignant neoplasm. They are usually located in the supratentorial area with possible direct dural invasion or only reactive dural thickening. However, in this case, GS was located in lateral side of left posterior cranial fossa. A 78-year-old man was admitted to our hospital with 3 month history of continuous dizziness and gait disturbance without past medical history. A gadolinium-enhanced MRI demonstrated 5.6×4.8×3.2 cm sized mass lesion in left posterior cranial fossa, heterogeneously enhanced. The patient underwent left retrosigmoid craniotomy with navigation system. The tumor was combined with 2 components, whitish firm mass and gray colored soft & suckable mass. On pathologic report, the final diagnosis was GS of WHO grade IV. In spite of successful gross total resection of tumor, we were no longer able to treat because of the patient's rejection of adjuvant treatment. The patient survived for nine months without receiving any special treatment from the hospital.
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Affiliation(s)
- Gi-Yong Yoon
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Hyuk-Jin Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Jae-Sang Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Seok-Mann Yoon
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Hack-Gun Bae
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
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Im IJ, Choi HJ, Jeong SM, Kim HJ, Son JS, Oh HJ. The association between muscle mass deficits and arterial stiffness in middle-aged men. Nutr Metab Cardiovasc Dis 2017; 27:1130-1135. [PMID: 29170061 DOI: 10.1016/j.numecd.2017.10.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 08/25/2017] [Accepted: 10/01/2017] [Indexed: 01/17/2023]
Abstract
BACKGROUND AND AIMS Early diagnosis of arteriosclerosis is fundamental for the prevention of cardiovascular morbidity and mortality. The current study was performed to identify major predictors of arteriosclerosis and to assess the association between arterial stiffness as measured by cardio-ankle vascular index (CAVI) and muscle mass deficit (MMD) estimated by bioelectrical impedance analysis (BIA) in middle-aged men. METHODS AND RESULTS Data were gathered from 3356 middle-aged men who visited a health promotion center. CAVI was measured as an index of arterial stiffness. Body composition analysis was performed using BIA. MMD was positively associated with CAVI in the regression model. The odds ratios for high-CAVI (≥9.0) rose with MMD grade in a dose-dependent manner after adjusting for age, lifestyle factors and current medication use. The estimated mean CAVI rose as MMD grade increased (P for trend >0.001). CONCLUSIONS MMD estimated from BIA was positively associated with arterial stiffness in middle-aged men. These findings show a close interaction between low muscle mass and cardiovascular risk.
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Affiliation(s)
- I J Im
- Department of Family Medicine, Eulji University Hospital, Daejeon, Republic of Korea
| | - H J Choi
- Department of Family Medicine, Eulji University Hospital, Daejeon, Republic of Korea.
| | - S M Jeong
- Department of Family Medicine, Eulji University Hospital, Daejeon, Republic of Korea
| | - H J Kim
- Department of Family Medicine, Eulji University Hospital, Daejeon, Republic of Korea
| | - J S Son
- Department of Family Medicine, Eulji University Hospital, Daejeon, Republic of Korea
| | - H J Oh
- Department of Family Medicine, Eulji University Hospital, Daejeon, Republic of Korea
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Ahn JM, Oh JS, Yoon SM, Shim JH, Oh HJ, Bae HG. Procedure-related Complications during Endovascular Treatment of Intracranial Saccular Aneurysms. J Cerebrovasc Endovasc Neurosurg 2017; 19:162-170. [PMID: 29159149 PMCID: PMC5680079 DOI: 10.7461/jcen.2017.19.3.162] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 09/15/2017] [Accepted: 09/27/2017] [Indexed: 11/23/2022] Open
Abstract
Objective We evaluate the rates and outcomes of major procedure-related complications during coiling. Materials and Methods Between 2007 and 2015, 436 intracranial saccular aneurysms were treated. Complications are categorized as three types: intraprocedural aneurysm rupture (IAR), thromboembolism (TE), and post-procedural early rebleeding (PER). And we evaluated the risk factors of procedure related complications by multivariate analysis. Results Complications occurred in 61 aneurysms (14%). The overall incidence of complications in subarachnoid hemorrhage (SAH) was significantly higher than in unruptured intracranial aneurysm (UIA) (20% vs. 6%). The incidence of IAR and TE were higher in SAH than in UIA (IAR 12% vs. 4%, TE 7% vs. 3%, p < 0.05). Five PER occurred only in SAH. In 34 UIA which were treated with balloon-assisted coiling (BAC), all these patients had good recovery despite 3 patients had the IAR. The incidence of IAR and TE were not different between BAC and non-BAC groups (p > 0.05). All 7 patients who had IAR during BAC had good recovery. In multiple logistic regression analysis, female gender, SAH, and intraventricular hemorrhage were associated with procedure related complication (p < 0.05). Conclusion Endovascular coil embolization is a minimally invasive procedure, but incidence of its complication is not low, especially in SAH. BAC can be a good tool to avoid poor outcome from unexpected IAR during coiling. While IA tirofiban injection is a useful therapy in TE during coiling, sometimes we are aware of the risk of the early rebleeding in SAH patients.
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Affiliation(s)
- Jae-Min Ahn
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Jae-Sang Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Seok-Mann Yoon
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Jae-Hyun Shim
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Hyuk-Jin Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Hack-Gun Bae
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
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Oh HJ, Oh HW, Lee DW, Kim CH, Ahn JY, Kim Y, Shin HB, Kim CY, Park SH, Jeon JG. Chronologic Trends in Studies on Fluoride Mechanisms of Action. J Dent Res 2017; 96:1353-1360. [PMID: 28657808 DOI: 10.1177/0022034517717680] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Fluoride has been widely used for the prevention of dental caries since the mid-20th century. The aim of this study was to investigate the chronologic trends in studies on fluoride mechanisms of action against dental caries during the years 1950 to 2015. To this aim, queries such as "fluoride," "fluoride and demineralization," "fluoride and remineralization," "fluoride and (plaque or biofilms)," and "fluoride and (bacteria or microbials)" were submitted to PubMed to collect research article information, including titles, abstracts, publication dates, author affiliations, and publication journals. The article information that PubMed produced was then collected by an automatic web crawler and examined through informetrics and linguistic analyses. We found that the number of articles concerned with fluoride mechanisms of action against dental caries was 6,903 and gradually increased over time during the years 1950 to 2015. They were published by 1,136 journals-most notably, Caries Research and Journal of Dental Research. Of the articles published, those related to bacteria/microbials had a higher percentage (44%) than those dealing with plaque/biofilms, demineralization, and remineralization. With regard to the geographic distribution of authors, Europe and North America accounted for 65% of the articles during the years 1987 to 2015, although the number of authors in Asia sharply increased in recent years. Among the fluoride compounds, NaF was mentioned more frequently than SnF2, Na2PO3F, amine fluoride, and acidulated phosphate fluoride during the years 1986 to 2015. Water fluoridation received the most attention among the various fluoride application methods (toothpastes, mouthwashes, fluoride varnishes, and fluoride gels) during the same period. These results, obtained from employing informetrics and linguistic analyses, suggest that in studies on fluoride mechanisms of action, 1) the unbalanced geographic distribution of articles and 2) the heavy concentration of articles on particular fluoride compounds and application methods should be overcome in future research.
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Affiliation(s)
- H J Oh
- 1 Graduate School of Archives and Records Management, Chonbuk National University, Jeonju, Republic of Korea.,2 Institute of Medical Information Convergence Research, Chonbuk National University, Jeonju, Republic of Korea
| | - H W Oh
- 2 Institute of Medical Information Convergence Research, Chonbuk National University, Jeonju, Republic of Korea.,3 Department of Preventive & Public Health Dentistry, College of Dentistry, Wonkwang University, Iksan, Republic of Korea
| | - D W Lee
- 2 Institute of Medical Information Convergence Research, Chonbuk National University, Jeonju, Republic of Korea.,4 Department of Preventive Dentistry, School of Dentistry, BK21 Program, Chonbuk National University, Jeonju, Republic of Korea
| | - C H Kim
- 2 Institute of Medical Information Convergence Research, Chonbuk National University, Jeonju, Republic of Korea.,5 Department of English Language and Literature, Chonbuk National University, Jeonju, Republic of Korea
| | - J Y Ahn
- 2 Institute of Medical Information Convergence Research, Chonbuk National University, Jeonju, Republic of Korea.,6 Department of Statistics, Chonbuk National University, Jeonju, Republic of Korea
| | - Y Kim
- 1 Graduate School of Archives and Records Management, Chonbuk National University, Jeonju, Republic of Korea.,2 Institute of Medical Information Convergence Research, Chonbuk National University, Jeonju, Republic of Korea
| | - H B Shin
- 2 Institute of Medical Information Convergence Research, Chonbuk National University, Jeonju, Republic of Korea.,7 Department of Surgery, Medical School, Chonbuk National University, Jeonju, Republic of Korea
| | - C Y Kim
- 2 Institute of Medical Information Convergence Research, Chonbuk National University, Jeonju, Republic of Korea.,7 Department of Surgery, Medical School, Chonbuk National University, Jeonju, Republic of Korea
| | - S H Park
- 2 Institute of Medical Information Convergence Research, Chonbuk National University, Jeonju, Republic of Korea.,8 Department of Rehabilitation Medicine, Medical School, Chonbuk National University, Jeonju, Republic of Korea
| | - J G Jeon
- 2 Institute of Medical Information Convergence Research, Chonbuk National University, Jeonju, Republic of Korea.,4 Department of Preventive Dentistry, School of Dentistry, BK21 Program, Chonbuk National University, Jeonju, Republic of Korea
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Park SY, Oh JS, Oh HJ, Yoon SM, Bae HG. Safety and Efficacy of Low-Profile, Self-Expandable Stents for Treatment of Intracranial Aneurysms: Initial and Midterm Results - A Systematic Review and Meta-Analysis. Interv Neurol 2017; 6:170-182. [PMID: 29118794 DOI: 10.1159/000471890] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Low-profile stents seem to be associated with a higher incidence of thromboembolic events compared with preexisting stents. We conducted a systematic review of 11 eligible reports and a meta-analysis of 7 reports with respect to the clinical efficacy and safety of low-profile stents. There were 217 intracranial aneurysms reported; 22% were ruptured aneurysms. In all, 72% were treated using single stenting, 19% were treated using overlapping stenting, and 6% were treated using balloon angioplasty followed by stenting; 3% were used to assess the flow diverter effect in a dissecting aneurysm or were treated using unexpected subtotal coil packing. On immediate postprocedural angiographic results, Raymond class I and II obliteration was obtained in 87% of the aneurysms. On angiographic results at 3-6 months, Raymond class I and II obliteration or stability was obtained in 79% of the aneurysms, and Raymond class III obliteration was obtained in 3% of the aneurysms. The recurrence rate on follow-up of intracranial aneurysms was 6.5% (5.7% with LEO Baby and 1.3% with LVIS Jr). The periprocedural complication rate was 12.4%. Periprocedural thromboembolism occurred in 6.5% of the cases. The rate of in-stent stenosis on follow-up of intracranial aneurysms was 10%. In the midterm result, the recurrence rate with use of low-profile, self-expandable stents was relatively low compared to that with use of other self-expandable stents. In the meta-analysis comparing LEO Baby with LVIS Jr, the obliteration rate at 6 months was not significantly different, but the periprocedural complication rate was relatively low with LVIS Jr.
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Affiliation(s)
- Su-Yeon Park
- Department of Statistics, Soonchunhyang University Hospital Cheonan, Cheonan, Republic of Korea
| | - Jae-Sang Oh
- Department of Neurosurgery, Soonchunhyang University Hospital Cheonan, Cheonan, Republic of Korea
| | - Hyuk-Jin Oh
- Department of Neurosurgery, Soonchunhyang University Hospital Cheonan, Cheonan, Republic of Korea
| | - Seok-Mann Yoon
- Department of Neurosurgery, Soonchunhyang University Hospital Cheonan, Cheonan, Republic of Korea
| | - Hack-Gun Bae
- Department of Neurosurgery, Soonchunhyang University Hospital Cheonan, Cheonan, Republic of Korea
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Oh HJ, Yoon SM, Oh JS, Shim JJ, Bae HG. Severe Cerebral Vasospasm in Patients with Hyperthyroidism. J Cerebrovasc Endovasc Neurosurg 2017; 18:385-390. [PMID: 28184350 PMCID: PMC5298982 DOI: 10.7461/jcen.2016.18.4.385] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 09/05/2016] [Accepted: 11/30/2016] [Indexed: 12/17/2022] Open
Abstract
Cerebral vasospasm associated with hyperthyroidism has not been reported to cause cerebral infarction. The case reported here is therefore the first of cerebral infarction co-existing with severe vasospasm and hyperthyroidism. A 30-year-old woman was transferred to our hospital in a stuporous state with right hemiparesis. At first, she complained of headache and dizziness. However, she had no neurological deficits or radiological abnormalities. She was diagnosed with hyperthyroidism 2 months ago, but she had discontinued the antithyroid medication herself three days ago. Magnetic resonance imaging and angiography showed cerebral infarction with severe vasospasm. Thus, chemical angioplasty using verapamil was performed two times, and antithyroid medication was administered. Follow-up angiography performed at 6 weeks demonstrated complete recovery of the vasospasm. At the 2-year clinical follow-up, she was alert with mild weakness and cortical blindness. Hyperthyroidism may influence cerebral vascular hemodynamics. Therefore, a sudden increase in the thyroid hormone levels in the clinical setting should be avoided to prevent cerebrovascular accidents. When neurological deterioration is noticed without primary cerebral parenchyma lesions, evaluation of thyroid function may be required before the symptoms occur.
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Affiliation(s)
- Hyuk-Jin Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Seok-Mann Yoon
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Jae-Sang Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Jai-Joon Shim
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Hack-Gun Bae
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
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Oh JS, Yoon SM, Oh HJ, Shim JJ, Bae HG, Lee KS. Endovascular Treatment of Dural Arteriovenous Fistulas: Single Center Experience. J Korean Neurosurg Soc 2016; 59:17-25. [PMID: 26885282 PMCID: PMC4754583 DOI: 10.3340/jkns.2016.59.1.17] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 11/22/2015] [Accepted: 11/23/2015] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE Treatment of intracranial dural arteriovenous fistulas (dAVFs) remains a challenge. However, after introduction of Onyx, transarterial approach is the preferred treatment option in many centers. We report our experience of dAVFs embolization with special emphasis on transarterial approach. METHODS Seventeen embolization procedures were performed in 13 patients with dAVFs between Jan 2009 and Oct 2014. Clinical symptoms, location and type of fistulas, embolization methods, complications, radiological and clinical outcomes were evaluated using charts and PACS images. RESULTS All 13 patients had symptomatic lesions. The locations of fistulas were transverse-sigmoid sinus in 6, middle fossa dura in 4, cavernous sinus in 2, and superior sagittal sinus in 1 patient. Cognard types were as follows : I in 4, IIa in 2, IIa+IIb in 5, and IV in 2. Embolization procedures were performed ≥2 times in 3 patients. Nine patients were treated with transarterial Onyx embolization alone. One of these required direct surgical puncture of middle meningeal artery. Complete obliteration of fistulas was achieved in 11/13 (85%) patients. There were no complications except for 1 case of Onyx migration in cavernous dAVF. Modified Rankin scale score at post-operative 3 months were 0 in 11, and 3 in 2 patients. CONCLUSION Transarterial Onyx embolization can be a first line therapeutic option in patients with dAVFs. However, transvenous approach should be tried first in cavernous sinus dAVF because of the risk of intracranial migration of liquid embolic materials. Furthermore, combined surgical endovascular approach can be considered as a useful option in inaccessible route.
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Affiliation(s)
- Jae-Sang Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Seok-Mann Yoon
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Hyuk-Jin Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Jai-Joon Shim
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Hack-Gun Bae
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Kyeong-Seok Lee
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
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Oh HJ, Park SJ, Lim JY, Cho NK, Song JD, Lee W, Lee YJ, Myoung JM, Choi WJ. Fabrication of GaAs/Al0.3Ga0.7As multiple quantum well nanostructures on (100) si substrate using a 1-nm InAs relief layer. J Nanosci Nanotechnol 2014; 14:2984-2989. [PMID: 24734721 DOI: 10.1166/jnn.2014.8593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Nanometer scale thin InAs layer has been incorporated between Si (100) substrate and GaAs/Al0.3Ga0.7As multiple quantum well (MQW) nanostructure in order to reduce the defects generation during the growth of GaAs buffer layer on Si substrate. Observations based on atomic force microscopy (AFM) and transmission electron microscopy (TEM) suggest that initiation and propagation of defect at the Si/GaAs interface could be suppressed by incorporating thin (1 nm in thickness) InAs layer. Consequently, the microstructure and resulting optical properties improved as compared to the MQW structure formed directly on Si substrate without the InAs layer. It was also observed that there exists some limit to the desirable thickness of the InAs layer since the MQW structure having thicker InAs layer (4 nm-thick) showed deteriorated properties.
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Cho JH, Chang SH, Shin NH, Choi BY, Oh HJ, Yoon MJ, Lee EY, Lee EB, Lee TJ, Song YW. Costs of illness and quality of life in patients with systemic lupus erythematosus in South Korea. Lupus 2014; 23:949-57. [PMID: 24563501 DOI: 10.1177/0961203314524849] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Accepted: 01/27/2014] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To assess the costs of illness, health-related quality of life (HRQOL) and their associated factors in patients with systemic lupus erythematosus (SLE) in South Korea. METHOD Two hundred and one patients with SLE were enrolled at the Rheumatology clinic of Seoul National University Hospital. Direct, indirect and total costs and HRQOL were measured using hospital electronic data and face-to-face interview. Socio-demographic and clinical factors associated with cost of illness and HRQOL were analyzed using multiple regression and multivariate logistic regression. RESULTS The average total cost of illness was estimated to be KRW 9.82 million (US $ 8993) per year, of which 41.6% was accounted for by direct costs and 58.4% by indirect costs. In multivariate regression, patients with renal involvement and those with depression incurred an average increment in annual total costs of 37.6% (p = 0.050) and 49.1% (p = 0.024), respectively, and an average increment in annual direct costs of 26.4% (p = 0.050) and 43.3% (p = 0.002), respectively, compared with patients without renal involvement and depression, respectively. In addition, disease damage was positively associated with an average increment in annual total and direct costs (55.3%, p = 0.006; 33.3%, p = 0.013, respectively), and the occurrence of indirect costs (OR 2.21, 1.09-4.88). There was no significant difference in HRQOL between patients with and without renal involvement (0.655 vs. 0.693, p = 0.203) CONCLUSION: Renal involvement, depression, and disease damage were major factors associated with higher total and medical costs for patients with SLE in South Korea. Effective treatment of renal disorders and depression may reduce the high economic burden of SLE.
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Affiliation(s)
- J H Cho
- Graduate School of Public Health, Seoul National University, Seoul, Korea
| | - S H Chang
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - N H Shin
- Graduate School of Public Health, Seoul National University, Seoul, Korea
| | - B Y Choi
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - H J Oh
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - M J Yoon
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - E Y Lee
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - E B Lee
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - T J Lee
- Graduate School of Public Health, Seoul National University, Seoul, Korea
| | - Y W Song
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology and College of Medicine, Medical Research Center, Seoul National University, Seoul, Korea
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Kim EM, Lee JR, Koo BN, Im YJ, Oh HJ, Lee JH. Analgesic efficacy of caudal dexamethasone combined with ropivacaine in children undergoing orchiopexy. Br J Anaesth 2014; 112:885-91. [PMID: 24491414 DOI: 10.1093/bja/aet484] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Epidural administration of dexamethasone might reduce postoperative pain in adults. We evaluated whether a caudal block of 0.1 mg kg(-1) dexamethasone combined with ropivacaine improves analgesic efficacy in children undergoing day-case orchiopexy. METHODS This randomized, double-blind study included 80 children aged 6 months to 5 yr who underwent day-case, unilateral orchiopexy. Patients received either 1.5 ml kg(-1) of 0.15% ropivacaine (Group C) or 1.5 ml kg(-1) of 0.15% ropivacaine in which dexamethasone of 0.1 mg kg(-1) was mixed (Group D) for caudal analgesia. Postoperative pain scores, rescue analgesic consumption, and side-effects were evaluated 48 h after operation. RESULTS Postoperative pain scores at 6 and 24 h post-surgery were significantly lower in Group D than in Group C. Furthermore, the number of subjects who remained pain free up to 48 h after operation was significantly greater in Group D [19 of 38 (50%)] than in Group C [four of 37 (10.8%); P<0.001]. The number of subjects who received oral analgesic was significantly lower in Group D [11 of 38 (28.9%)] than in Group C [20 of 37 (54.1%); P=0.027]. Time to first oral analgesic administration after surgery was also significantly longer in Group D than in Group C (P=0.014). Adverse events after surgery including vomiting, fever, wound infection, and wound dehiscence were comparable between the two groups. CONCLUSIONS The addition of dexamethasone 0.1 mg kg(-1) to ropivacaine for caudal block can significantly improve analgesic efficacy in children undergoing orchiopexy. Clinical trial registration NCT01604915.
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Affiliation(s)
- E M Kim
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, 120-752 Seoul, Republic of Korea
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Kim GA, Oh HJ, Park JE, Kim MJ, Park EJ, Jo YK, Jang G, Kim MK, Kim HJ, Lee BC. Species-specific challenges in dog cloning. Reprod Domest Anim 2013; 47 Suppl 6:80-3. [PMID: 23279471 DOI: 10.1111/rda.12035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Accepted: 07/06/2012] [Indexed: 11/28/2022]
Abstract
Somatic cell nuclear transfer (SCNT) is now an established procedure used in cloning of several species. SCNT in dogs involves multiple steps including the removal of the nuclear material, injection of a donor cell, fusion, activation of the reconstructed oocytes and finally transfer to a synchronized female recipient. There are therefore many factors that contribute to cloning efficiency. By performing a retrospective analysis of 2005-2012 published papers regarding dog cloning, we define the optimum procedure and summarize the specific feature for dog cloning.
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Affiliation(s)
- G A Kim
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, Seoul, Korea
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Ahn IE, Ju JH, Lee SY, Park JS, Oh HJ, Kim HR, Lee SH, Park SH, Kim HY, Cho ML. Upregulation of stromal cell-derived factor by IL-17 and IL-18 via a phosphatidylinositol 3-kinase-dependent pathway. Scand J Immunol 2012; 76:433-9. [PMID: 22690919 DOI: 10.1111/j.1365-3083.2012.02745.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Th17 cells that produce interleukin (IL)-17 play a key role in the pathogenesis of autoimmune inflammation. Among the various cytokines that are involved in the IL-17 pathway, members of the IL-1β family, including IL-18, have recently gained attention. In this study, we stimulated synovial fibroblasts with a combination of IL-17 and IL-18 and quantified their stromal cell-derived factor-1 (SDF-1) production by enzyme-linked immunosorbent assay and their transcript levels by reverse transcription-polymerase chain reaction. Both IL-17 and IL-18 significantly increased the level of SDF-1, not only individually but also synergistically (P< 0.05). The synergism was effectively suppressed by anti-IL-17 and -IL-18 antibodies, and a PI3K inhibitor. To the best of our knowledge, this is the first report of PI3K-dependent synergism between IL-18 and IL-17, and this work adds a novel perspective of the role of IL-18 in immune regulation. The individual effects of these two cytokines, and their interactions, suggest an interrelationship between the IL-1 family and IL-17.
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Affiliation(s)
- I E Ahn
- Rheumatism Research Center (RhRC), Catholic Institute of Medical Sciences, The Catholic University of Korea, Seoul, Korea
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Oh HJ, Park EJ, Lee SY, Soh JW, Kong IS, Choi SW, Ra JC, Kang SK, Lee BC. Comparison of cell proliferation and epigenetic modification of gene expression patterns in canine foetal fibroblasts and adipose tissue-derived mesenchymal stem cells. Cell Prolif 2012; 45:438-44. [PMID: 22925503 DOI: 10.1111/j.1365-2184.2012.00838.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVES This study compared rate of cell proliferation, viability, cell size, expression patterns of genes related to pluripotency and epigenetic modification between canine foetal fibroblasts (cFF) and canine adipose tissue-derived mesenchymal stem cells (cAd-MSC). MATERIALS AND METHODS Proliferation pattern, cell viability as well as cell size at each passage of cFF and cAd-MSC were measured when cultures reached confluence. In addition, real-time PCR was performed to investigate expression of Dnmt1, HDAC1, OCT4, SOX2, BAX, BCL2 genes with reference to β-actin gene expression as an endogenous control in both cell lines. RESULTS cFF and cAd-MSC differed in number of generations, but not in doubling times, at all passages. Mean cell size of cAd-MSC was significantly smaller than that of cFF. Cell viability was significantly lower in cFFs and apoptotic level was significantly lower in cAd-MSC compared to passage-matched cFF. In the expression of genes related to pluripotency and epigenetic modification, level of HDAC1 in cAd-MSC was significantly higher than in cFF, but expression of Dnmt1 did not differ between the two groups. OCT4 and SOX2 were significantly more highly expressed in cAd-MSC compared to cFF. CONCLUSIONS cAd-MSC have higher stem-cell potential than cFF in terms of proliferation patterns, epigenetic modification and pluripotency, thus cAd-MSC could be more appropriate than cFF as donors of nuclei in somatic cell nuclear transfer for transgenesis.
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Affiliation(s)
- H J Oh
- Department of Theriogenology and Biotechnology, Seoul National University, Seoul, South Korea
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Kim JS, Oh SY, Lee SH, Kang JH, Kim DU, Jeong SH, Choi KD, Moon IS, Kim BK, Oh HJ, Kim HJ. Randomized clinical trial for apogeotropic horizontal canal benign paroxysmal positional vertigo. Neurology 2011; 78:159-66. [PMID: 22170885 DOI: 10.1212/wnl.0b013e31823fcd26] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To determine the immediate and long-term therapeutic efficacies of Gufoni and head-shaking maneuvers in apogeotropic type of benign paroxysmal positional vertigo involving the horizontal semicircular canal (HC-BPPV), a randomized, prospective, sham-controlled study was conducted. METHODS In 10 nationwide dizziness clinics in Korea, 157 consecutive patients (95 women, age range: 18-89 years, mean age ± SD = 59.9 ± 13.6) with apogeotropic HC-BPPV were randomized to Gufoni (n = 52), head-shaking (n = 54), or sham maneuver (n = 51). For Gufoni maneuver, patients underwent ipsilesional side-lying and upward head-turn for migration of the debris toward the vestibule. Immediate responses were determined within 1 hour after a maximum of 2 trials of each maneuver and in the following day. The patients also had weekly follow-ups for 1 month after the initial maneuver. RESULTS After a maximum of 2 maneuvers on the initial visit day, Gufoni (38/52, 73.1%) and head-shaking (33/53, 62.3%) maneuvers showed better responses than the sham maneuver (17/49, 34.7%). The cumulative therapeutic effects were also better with Gufoni (p < 0.001) and head-shaking (p = 0.026) maneuvers compared with the sham maneuver. However, therapeutic efficacies did not differ between the Gufoni and head-shaking groups in terms of both immediate (p = 0.129) and long-term (p = 0.239) outcomes. CONCLUSION Using a prospective randomized trial, we demonstrated that the Gufoni and head-shaking maneuvers are effective in treating apogeotropic HC-BPPV. CLASSIFICATION OF EVIDENCE This study provides Class II evidence that Gufoni and head-shaking maneuvers are effective in treating apogeotropic horizontal BPPV up to 1 month after initial treatment. CLINICAL TRIAL REGISTRATION NCT00810641.
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Affiliation(s)
- J-S Kim
- Department of Neurology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seoul, Korea
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Oh HJ, Yoon SM, Kim SH, Shim JJ. A case of pial arteriovenous fistula with giant venous aneurysm and multiple varices treated with coil embolization. J Korean Neurosurg Soc 2011; 50:248-51. [PMID: 22102958 DOI: 10.3340/jkns.2011.50.3.248] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2011] [Revised: 05/04/2011] [Accepted: 08/30/2011] [Indexed: 11/27/2022] Open
Abstract
Intracranial pial arteriovenous fistulas (AVFs) are rare vascular lesions of the brain. These lesions consist of one or more arterial connection to a single venous channel without true intervening nidus. A 24-year-old woman visited to our hospital because of headache, vomiting, dizziness and memory disturbance that persisted for three days. She complained several times of drop attack because of sudden weakness on both leg. Cerebral angiograms demonstrated a giant venous aneurysm on right frontal lobe beyond the genu of corpus callosum, multiple varices on both frontal lobes fed by azygos anterior cerebral artery, and markedly dilated draining vein into superior sagittal sinus, suggesting single channel pial AVF with multiple varices. Transarterial coil embolization of giant aneurysm and fistulous portion resulted in complete disappearance of pial AVF without complication.
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Affiliation(s)
- Hyuk-Jin Oh
- Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
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Choresca CH, Koo OJ, Hong SG, Oh HJ, Gomez DK, Kim JH, Lee BC, Park SC. Effect of dimethyl sulfoxide on cell cycle synchronization of goldfish caudal fin derived fibroblasts cells. Reprod Domest Anim 2011; 45:e73-7. [PMID: 19788515 DOI: 10.1111/j.1439-0531.2009.01525.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Several studies have previously been conducted regarding cell cycle synchronization in mammalian somatic cells. However, limited work has been performed on the control of cell cycle stages in the somatic cells of fish. The aim of this study was to determine the cell cycle arresting effects of several dimethyl sulfoxide (DMSO) concentrations for different times on different cell cycle stages of goldfish caudal fin-derived fibroblasts. Results demonstrated that the cycling cells or control group (68.29%) yields significantly higher (p < 0.05) arrest in G0/G1 phase compared with the group treated for 24 h with different concentrations (0.5%, 1.0% or 1.5%) of DMSO (64.88%, 65.70%, 64.22% respectively). The cell cycle synchronization in the treatment of cells with 1.0% DMSO at 48 h (81.14%) was significantly higher than that in the groups treated for 24 h (76.82%) and the control group (77.90%). Observations showed that treatment of DMSO resulted in an increase in the proportion of cells at G0/G1 phase for 48 h of culture. However, high levels of apoptotic cells can be detected after 48 h of culture treated with 1% concentration of DMSO.
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Affiliation(s)
- C H Choresca
- Laboratory of Aquatic Animal Medicine, Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, Seoul Brain Korea 21 Program for Veterinary Science, Seoul National University, Seoul, South Korea
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Kim MJ, Oh HJ, Park JE, Hong SG, Kang JT, Koo OJ, Kang SK, Jang G, Lee BC. Influence of oocyte donor and embryo recipient conditions on cloning efficiency in dogs. Theriogenology 2010; 74:473-8. [PMID: 20452009 DOI: 10.1016/j.theriogenology.2010.03.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2009] [Revised: 01/26/2010] [Accepted: 03/07/2010] [Indexed: 11/16/2022]
Abstract
To determine factors that affect the efficiency of dog cloning by somatic cell nuclear transfer, the present study was performed to investigate 1) the effects of surgical history (non-operated/operated) and parity (nullipara/multipara) on the recovery of in vivo canine oocytes; 2) the effects of surgical history and parity of recipients on the pregnancy and delivery; and 3) the effects of synchronization state (AA, advanced asynchrony; SY, synchrony; RA, retarded asynchrony) between oocytes donor and recipient on the pregnancy and delivery. Oocyte recovery rate was significantly higher in non-operated dogs compared to operated dogs (93.8 vs. 89.6%, P < 0.05) and not different between nulliparous dogs and multiparous dogs. Delivery rate was also significantly higher in non-operated dogs compared to operated dogs (2.8 vs. 1.0%, P < 0.05) and in nulliparous dogs than multiparous dogs (3.0 vs. 1.7%, P < 0.05). Even though SY showed increased pregnancy and delivery rate (20.0% and 3.0%) compared to AA (15.0% and 2.0%) and RA (0.0% and 0.0%), there was no significant difference. In conclusion, we recommend non-operated dogs as experimental dogs and nulliparous dogs as recipient dogs to increase delivery rate after transfer of somatic cell nuclear transferred embryos, but further study is needed to find out appropriate synchrony status at the transfer.
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Affiliation(s)
- M J Kim
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, Seoul, 151-742, Korea
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An SSA, Lim KT, Oh HJ, Lee BS, Zukic E, Ju YR, Yokoyama T, Kim SY, Welker E. Differentiating blood samples from scrapie infected and non-infected hamsters by detecting disease-associated prion proteins using Multimer Detection System. Biochem Biophys Res Commun 2010; 392:505-9. [PMID: 20085753 DOI: 10.1016/j.bbrc.2010.01.053] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2010] [Accepted: 01/14/2010] [Indexed: 10/20/2022]
Abstract
This communication describes the application of a modified sandwich enzyme-linked immunosorbent assay (ELISA), termed Multimer Detection System (MDS) for the detection of disease-associated multimeric forms of the prion protein (PrPd) in hamster blood. PrPd was detected in plasma of prion-affected hamsters while MDS revealed no PrPd in identically-treated plasma of healthy animals. This is the first report of a single ELISA- based immune detection of PrPd from blood samples.
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Affiliation(s)
- S S A An
- Department of Bionano Technology, Kyungwon University, Sungnam-si, Kyungki-do 461-701, South Korea.
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Park JE, Oh HJ, Hong SG, Jang G, Kim MK, Lee BC. Effects of activin A on the in vitro development and mRNA expression of bovine embryos cultured in chemically-defined two-step culture medium. Reprod Domest Anim 2008; 45:585-93. [PMID: 19090825 DOI: 10.1111/j.1439-0531.2008.01306.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The purpose of the present study was to evaluate the effects of activin A on the developmental competence of in vitro fertilized (IVF) bovine embryos derived from a two-step defined culture system (C1/C2 medium) during the early or later stages of embryo development. To evaluate the effects of activin A on transcriptional levels, we analysed genes related to blastocyst hatching and implantation and to activin signalling pathway in IVF embryos. Cumulus-oocyte complexes were matured for 22 h and fertilized in vitro. Presumptive zygotes were cultured in the presence or absence of activin A during early (0-120 h, C1) or later (120-192 h, C2) stages. Although the developmental competence of embryos cultured with activin A in C1 medium was not significantly different from their corresponding controls, development to blastocysts (22.4% vs 34.7%; p < 0.05) and the blastocyst hatching rate (9.3% vs 22.4%; p < 0.05) in C2 medium supplemented with 100 ng/ml activin A were significantly higher than in the control group. To evaluate the effect of activin A on transcription, the relative expression levels of genes related to blastocyst hatching and implantation (Na/K-ATPase, E-cad and Glut-1) as well as activin signalling pathway (ActRII, ActRIIB and Smad2) were analysed. Compared to control medium, gene expression of Na/K-ATPase, E-cad, Glut-1, ActRII and ActRIIB was increased in medium supplemented with activin A. In conclusion, this study suggests that activin A, during the later stage of in vitro bovine embryo development, can enhance in vitro development of embryos by increasing hatching rates and affecting expression levels of genes related to hatching and implantation in defined culture medium.
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Affiliation(s)
- J E Park
- Department of Theriogenology and Biotechnology, SeoulNational University, Seoul, Korea
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Jang G, Oh HJ, Kim MK, Fibrianto YH, Hossein MS, Kim HJ, Kim JJ, Hong SG, Park JE, Kang SK, Lee BC. Improvement of canine somatic cell nuclear transfer procedure. Theriogenology 2007; 69:146-54. [PMID: 17949804 DOI: 10.1016/j.theriogenology.2007.08.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2006] [Revised: 05/21/2007] [Accepted: 08/08/2007] [Indexed: 10/22/2022]
Abstract
The purpose of the present study on canine somatic cell nuclear transfer (SCNT) was to evaluate the effects of fusion strength, type of activation, culture media and site of transfer on developmental potential of SCNT embryos. We also examined the potential of enucleated bovine oocytes to serve as cytoplast recipients of canine somatic cells. Firstly, we evaluated the morphological characteristics of in vivo-matured canine oocytes collected by retrograde flushing of the oviducts 72 h after ovulation. Secondly, the effectiveness of three electrical strengths (1.8, 2.3 and 3.3 kV/cm), used twice for 20 micros, on fusion of canine cytoplasts with somatic cells were compared. Then, we compared: (1) chemical versus electrical activation (a) after parthenogenetic activation or (b) after reconstruction of canine oocytes with somatic cells; (2) culture of resulting intergeneric (IG) embryos in either (a) mSOF or (b) TCM-199. The exposure time to 6-DMAP was standardized by using bovine oocytes reconstructed with canine somatic cells. Bovine oocytes were used for SCNT after a 22 h in vitro maturation interval. The fusion rate was significantly higher in the 3.3 kV/cm group than in the 1.8 and 2.3 kV/cm treatment groups. After parthenogenesis or SCNT with chemical activation, 3.4 and 5.8%, respectively, of the embryos developed to the morula stage, as compared to none of the embryos produced using electrical activation. Later developmental stages (8-16 cells) were transferred to the uterine horn of eight recipients, but no pregnancy was detected. However, IG cloned embryos (bovine cytoplast/canine somatic cell) were capable of in vitro blastocyst development. In vitro developmental competence of IG cloned embryos was improved after exposure to 6-DMAP for 4 h as compared to 0, 2 or 6h exposure, although the increase was not significantly different among culture media. In summary, for production of canine SCNT embryos, we recommend fusion at 3.3 kV/cm, chemical activation, culture in mSOF medium and transfer of presumptive zygotes to the oviduct of recipient animals. The feasibility of IG production of cloned canine embryos using bovine cytoplasts as recipient of canine somatic cells was demonstrated.
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Affiliation(s)
- G Jang
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
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Jang G, Kim MK, Oh HJ, Hossein MS, Fibrianto YH, Hong SG, Park JE, Kim JJ, Kim HJ, Kang SK, Kim DY, Lee BC. Birth of viable female dogs produced by somatic cell nuclear transfer. Theriogenology 2006; 67:941-7. [PMID: 17169419 DOI: 10.1016/j.theriogenology.2006.11.006] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2006] [Accepted: 11/03/2006] [Indexed: 11/20/2022]
Abstract
Since the only viable cloned offspring born in dogs was a male, the purpose of the present study was to produce female puppies by somatic cell nuclear transfer (SCNT). Adult ear fibroblasts from a 2-month-old female Afghan hound were isolated and used as donor cells. In vivo-matured canine oocytes surgically collected (approximately 72h after ovulation) from the oviducts of 23 donors were used for SCNT. After removal of the cumulus cells, oocytes were enucleated, microinjected, fused with a donor cell, and activated. A total of 167 reconstructed SCNT embryos were surgically transferred (Day 0) into the oviducts of 12 recipient bitches (average 13.9 embryos/recipient, range 6-22) with spontaneous, synchronous estrous cycles. Three pregnancies were detected by ultrasonography on Day 23, maintained to term, and three healthy female puppies (520, 460, and 520g), were delivered by Caesarean section on Day 60. These puppies were phenotypically and genotypically identical to the cell donor. In conclusion, we have provided the first demonstration that female dogs can be produced by nuclear transfer of ear fibroblasts into enucleated canine oocytes.
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Affiliation(s)
- G Jang
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Republic of Korea
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Abstract
OBJECTIVE This cross-sectional study evaluated the association between serum minerals and body mass index in adult women. METHODS One hundred and eighteen adult women were recruited by written advertisement from outpatient clinics or a health promotion center at a university hospital. Serum calcium, magnesium, copper and zinc were measured by an automatic analytical instrument and body mass index was calculated from height and weight. RESULTS Serum magnesium was inversely associated with body mass index (beta=-0.283, P=0.001) whereas serum copper had a positive association with body mass index (beta=0.197, P=0.025) after adjusting for age, physical activity, energy intake, dietary fat, alcohol consumption, supplements and menopause status. No associations were found with serum calcium and zinc. CONCLUSION Serum magnesium and copper may be involved in the regulation of body size in adult women.
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Affiliation(s)
- C H Song
- Department of Family Medicine, St Mary's Hospital, School of Medicine, The Catholic University of Korea, Seoul, Korea.
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Kim JA, Kim SM, Choi YS, Yoon D, Lee JS, Park HS, Kim HA, Lee J, Oh HJ, Choi KM. The prevalence and risk factors associated with isolated untreated systolic hypertension in Korea: the Korean National Health and Nutrition Survey 2001. J Hum Hypertens 2006; 21:107-13. [PMID: 17108991 DOI: 10.1038/sj.jhh.1002119] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Although isolated systolic hypertension (ISH) increases the risk of coronary heart disease and stroke, more than any other hypertension subtype, the prevalence and risk factors associated with ISH in the Korean population are not known. The 2001 Korean National Health and Nutrition Survey was a cross-sectional and nationally representative survey conducted in 2001. The prevalence of ISH by age and body mass index (BMI) was examined in 6601 Korean adults over 20 years of age. After adjusting for age, 4.32+/-0.32% of Korean adults had ISH, 5.28+/-0.37% had isolated diastolic hypertension and 5.82+/-0.36% had systolic/diastolic hypertension. The overall prevalence of ISH was found to increase directly with advancing age and increasing BMI. Although the ISH was found to be more common in men overall (4.81+/-0.50% in men, 4.12+/-0.37% in women), it was more common in women over 70 years of age. Independent variables associated with risk for ISH included advanced age, BMI, triglyceride (TG) levels, monthly income and alcohol intake. However, gender, fasting blood glucose, total cholesterol and high-density lipoprotein cholesterol levels, residential area, education level and smoking were found not to be significantly associated with ISH risk. The findings of the present study demonstrate that the prevalence of untreated ISH in Korea was lower than in Western countries. Age, BMI, TG levels, monthly income and alcohol intake were associated with ISH.
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Affiliation(s)
- J A Kim
- Department of Family Medicine, Cheil General Hospital and Women's Health Care Center, Seoul, Korea
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Kim DJ, Oh HJ, Park TH, Choo JB, Lee SH. An easily integrative and efficient micromixer and its application to the spectroscopic detection of glucose-catalyst reactions. Analyst 2005; 130:293-8. [PMID: 15724156 DOI: 10.1039/b414180f] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The focus of this paper is on the fabrication of a PDMS-based passive efficient micromixer to be easily integrated into the other on-chip microfluidic system. The mixing is achieved by "strong stretching and folding," which employs a three-dimensional microchannel structure. By the simultaneously vertical and transversal dispersion of fluids, strong advection is developed. Owing to this powerful mixing performance (more than 70% of the mixing is accomplished within 2.3 mm over a wide range of Reynold number (Re)), the smaller integrative mixer can be realized. The feasibility and the potential usefulness of an integrative micromixer were evaluated by incorporating two mixers into the microchannel for the spectroscopic detection of a glucose-catalyst reaction. The results demonstrate a promising performance for diverse applications in the assay or synthesis of biological or chemical materials.
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Affiliation(s)
- D J Kim
- Department of Biomedical Engineering, Dankook University, San 29, Anseo-Dong, Cheonan, Chungnam 330-714, S. Korea.
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Oh BS, Song SJ, Lee ET, Oh HJ, Kang JW. Catalyzed ozonation process with GAC and metal doped-GAC for removing organic pollutants. Water Sci Technol 2004; 49:45-49. [PMID: 15077946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The purpose of this study was to investigate the catalytic role of granular activated carbon (GAC), and metal (Mn or Fe) doped-GAC, on the transformation of ozone into more reactive secondary radicals, such as hydroxyl radicals (*OH), for the treatment of wastewater. The GAC doped with Mn showed the highest catalytic performance in terms of ozone decomposition into OH radicals. Likewise, activated carbon alone accelerated the ozone decomposition, resulting in the formation of *OH radicals. In the presence of promoters, the ozone depletion rate was enhanced further by the Mn-GAC catalyst system, even under aqueous acidic pH conditions.
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Affiliation(s)
- B S Oh
- Department of Environmental Engineering, Yonsei University, Wonju Campus, Hyeung-up Myon, Korea.
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Min BG, Rho YR, Lee HS, Hwang CM, Choi SW, Lee JC, Choi H, Sun K, Son HS, Lee HS, Oh HJ, Ahn SS, Baek KJ, Won YS. T-PLS NEW PULSATILE BLOOD PUMP TECHNOLOGY FROM CARDIAC ARREST TO HEART RECOVERY. ASAIO J 2002. [DOI: 10.1097/00002480-200203000-00054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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50
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Kim MH, Lee KM, Oh HJ, Cho HC, Cho DH, Nam H, Cha GS, Paeng KJ. Potentiometric pH response of polymer membranes incorporated with ion-exchangers. ANAL SCI 2001; 17:995-7. [PMID: 11708108 DOI: 10.2116/analsci.17.995] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- M H Kim
- Chemical Sensor Research Group, Department of Chemistry, Kwangwoon University, Seoul 139-701, Korea
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