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Jeong HW, Menciotti G. Insulation break of the ventricular lead in a dog with a pacemaker. J Vet Cardiol 2023; 50:63-68. [PMID: 37931345 DOI: 10.1016/j.jvc.2023.09.005] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 09/20/2023] [Accepted: 09/29/2023] [Indexed: 11/08/2023]
Abstract
A 10-year-old female spayed mixed breed dog that had a transvenous pacemaker implanted four years prior was presented for the evaluation of episodes of transient loss of consciousness without any history of trauma that were unresponsive to anticonvulsant therapies. Intermittent failure to capture coupled with low impedance and high capture threshold were noted upon interrogation of the pacemaker. Radiography and fluoroscopy demonstrated a possible break in the insulation of the lead. After the placement of another transvenous pacemaker, the dog had no additional syncopal episodes, and anticonvulsants were tapered off. The dog developed an implant infection from the newly placed pacemaker, which prompted the removal of the infected pacemaker and the implantation of an epicardial pacemaker. However, the epicardial lead dislodged seven days after placement, and the dog was euthanized. During necropsy, the first transvenous lead was removed, and the insulation break was visually confirmed. Although an insulation break is a rare delayed complication of pacemaker implantation, this report shows how the diagnosis, suspected by typical interrogation findings, can be aided by radiographic and fluoroscopic investigations.
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Affiliation(s)
- H W Jeong
- Department Small Animal Clinical Science, Virginia Maryland College of Veterinary Medicine, Blacksburg, VA, USA.
| | - G Menciotti
- Department Small Animal Clinical Science, Virginia Maryland College of Veterinary Medicine, Blacksburg, VA, USA
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Jung J, Moon SM, Kim DY, Kim SH, Lee WJ, Heo ST, Park JY, Bae S, Lee MJ, Kim B, Park SY, Jeong HW, Kim Y, Kwak YG, Song KH, Park KH, Park SH, Kim YK, Kim ES, Kim HB. Appropriateness of antibiotic use for patients with asymptomatic bacteriuria or urinary tract infection with positive urine culture: a retrospective observational multi-centre study in Korea. J Hosp Infect 2023; 140:79-86. [PMID: 37562596 DOI: 10.1016/j.jhin.2023.07.022] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 07/24/2023] [Accepted: 07/29/2023] [Indexed: 08/12/2023]
Abstract
BACKGROUND Antibiotic resistance threatens public health worldwide, and inappropriate use of antibiotics is one of the main causes. AIM To evaluate qualitative use of antibiotics in asymptomatic bacteriuria (ABU) and urinary tract infection (UTI). METHODS Cases of positive urine culture (≥105 colony-forning units/mL) performed in inpatient, outpatient and emergency departments in April 2021 were screened in 26 hospitals in the Republic of Korea. The cases were classified as ABU, lower UTI and upper UTI. The appropriateness of antibiotic use was evaluated retrospectively by infectious disease specialists using quality indicators based on clinical guidelines for ABU and UTI. RESULTS This study included a total of 2697 patients with ABU or UTI. The appropriateness of antibiotic use was assessed in 1157 patients with ABU, and in 677 and 863 patients with lower and upper UTI, respectively. Among the 1157 patients with ABU, 251 (22%) were prescribed antibiotics without appropriate indications. In 66 patients with ABU in which antibiotics were prescribed with appropriate indications, the duration was adequate in only 23 (34.8%) patients. The appropriateness of empirical and definite antibiotics was noted in 527 (77.8%) and 353 (68.0%) patients with lower UTI, and 745 (86.3%) and 583 (78.2%) patients with upper UTI, respectively. The duration of antibiotics was adequate in 321 (61.8%) patients with lower UTI and 576 (78.7%) patients with upper UTI. CONCLUSIONS This nationwide qualitative assessment of antibiotic use in ABU and UTI revealed that antibiotics were often prescribed inappropriately, and the duration of antibiotics was unnecessarily prolonged.
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Affiliation(s)
- J Jung
- Division of Infectious Diseases, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea
| | - S M Moon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - D Y Kim
- Division of Infectious Diseases, Department of Internal Medicine, Kyung Hee University Hospital, Kyung Hee University School of Medicine, Seoul, Republic of Korea
| | - S-H Kim
- Division of Infectious Diseases, Samsung Changwon Hospital, Sungkyunkwan University, Changwon, Republic of Korea
| | - W J Lee
- Department of Internal Medicine, Hallym Hospital, Incheon, Republic of Korea
| | - S T Heo
- Division of Infectious Disease, Department of Internal Medicine, Jeju National University College of Medicine, Jeju, Republic of Korea
| | - J Y Park
- Department of Paediatrics, Chung-Ang University Hospital, Seoul, Republic of Korea
| | - S Bae
- Division of Infectious Diseases, Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - M J Lee
- Department of Internal Medicine, Inje University Sanggye Paik Hospital, Seoul, Republic of Korea
| | - B Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - S Y Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea; Department of Hospital Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Republic of Korea; Department of Biomedical Systems Informatics, Yonsei University College of Medicine, Seoul, Republic of Korea; Centres for Digital Health, Yongin Severance Hospital, Yonsei University Health System, Yongin, Republic of Korea
| | - H W Jeong
- Department of Internal Medicine, Chungbuk National University College of Medicine, Cheongju, Republic of Korea; Department of Internal Medicine, Chungbuk National University Hospital, Cheongju, Republic of Korea
| | - Y Kim
- Department of Internal Medicine, Wonkwang University College of Medicine, Iksan, Republic of Korea
| | - Y G Kwak
- Department of Internal Medicine, Inje University Ilsan Paik Hospital, Goyang, Republic of Korea
| | - K-H Song
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - K-H Park
- Department of Infectious Diseases, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - S H Park
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Y K Kim
- Department of Internal Medicine, Wonju College of Medicine, Yonsei University, Wonju, Republic of Korea
| | - E S Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - H B Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea.
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Jeong EO, Jeong HW, Lee HJ, Kim KH, Koh HS, Kwon HJ. Distal stenting technique for coil embolization of early branch aneurysms of middle cerebral artery. J Neuroradiol 2023:S0150-9861(23)00225-0. [PMID: 37553050 DOI: 10.1016/j.neurad.2023.08.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 05/25/2023] [Revised: 07/28/2023] [Accepted: 08/05/2023] [Indexed: 08/10/2023]
Abstract
BACKGROUND AND PURPOSE Stent-assisted coil embolization of early branch aneurysms of the middle cerebral artery (MCA) can sometimes be challenging due to the small diameter and acute angle of the branches. This study aimed to analyze the treatment results and report the feasibility and outcomes of the distal stenting technique for these aneurysms. MATERIALS AND METHODS The distal stenting technique was used for 15 wide-neck MCA aneurysms (females, 10; males, 5; mean age, 65.1 years) originating from the early branch between December 2018 and October 2021. The average sizes of the dome, depth, and neck of the aneurysms were 4.17 mm (range: 2.99-6.21 mm), 2.86 mm (range: 1.82-3.72 mm), and 3.42 mm (range: 2.44-4.32 mm), respectively. RESULTS The average diameter of the stents was 4.0 mm (3.0 mm, 3; 4.0 mm, 6; 4.5 mm, 6). Stents were successfully deployed in all 15 aneurysms (100%). The average length of the procedure was 69 min (range: 45-117 min). On postoperative angiography, nine (60.0%) aneurysms were completely occluded, four (26.7%) had neck remnants, and two (13.3%) had contrast flow in the sac. During the procedure, vasospasm and thrombus formation occurred in one case each, but no neurological sequelae were observed. On follow-up digital subtraction angiography of the 10 aneurysms after an average of 13.7 months (range: 12-18 months), the branches were well preserved, and neck remnants were noted in four aneurysms (40.0%). No thromboembolic events occurred during the clinical follow-up. CONCLUSION The distal stenting technique using an open-cell stent can be a good option for coil embolization of early branch MCA aneurysms.
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Affiliation(s)
- Eun-Oh Jeong
- Department of Neurosurgery, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Hee-Won Jeong
- Department of Neurosurgery, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Han-Joo Lee
- Department of Neurosurgery, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Kyung Hwan Kim
- Department of Neurosurgery, Chungnam National University Hospital, Daejeon, Republic of Korea; Department of Neurosurgery, Chungnam National University School of Medicine, Deajeon, Republic of Korea
| | - Hyeon-Song Koh
- Department of Neurosurgery, Chungnam National University Hospital, Daejeon, Republic of Korea; Department of Neurosurgery, Chungnam National University School of Medicine, Deajeon, Republic of Korea
| | - Hyon-Jo Kwon
- Department of Neurosurgery, Chungnam National University Hospital, Daejeon, Republic of Korea; Department of Neurosurgery, Chungnam National University School of Medicine, Deajeon, Republic of Korea.
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Roh HK, Jeong EO, Kim KH, Jeong HW, Lee HJ, Choi SW, Kim SH, Koh HS, Youm JY, Kwon HJ. Treatment results of anterior choroidal artery aneurysms treated mostly with coil embolization: A single-center experience. J Cerebrovasc Endovasc Neurosurg 2022; 24:341-348. [PMID: 36104958 PMCID: PMC9829556 DOI: 10.7461/jcen.2022.e2022.06.001] [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: 06/02/2022] [Accepted: 06/26/2022] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Anterior choroidal artery (AchA) aneurysms are usually small in diameter because of the size of the involved artery and are often wide-necked. Coil embolization of AchA aneurysm is thus challenging because of serious risks, such as thromboembolic occlusion of artery and perforation of aneurysm dome. Therefore, aneurysmal neck clipping remains widely performed despite a recent increase in the use of coil embolization for aneurysm treatment. We report the treatment results of AchA aneurysms mostly (92.3%) treated with coil embolization at our institute. METHODS The database and medical records of patients who underwent coil embolization for AchA aneurysms were retrospectively analyzed. The clinical and imaging results and procedure-related complications were investigated after coil embolization performed between January 2006 and March 2022 at our institute. RESULTS In total, 96 AchA aneurysms comprising 65 unruptured and 31 ruptured aneurysms, including only 1 ruptured aneurysm (1.0%) re-embolized at postoperative day 192 because of coil compaction, were evaluated. After the initial coil embolization, complete occlusion was attained in 41, residual neck in 45, and residual aneurysm in 10 patients. Follow-up radiological studies after 6-174 months were performed for 80 aneurysms. Complete occlusion was noted in 57 patients, residual neck in 22, and residual aneurysm in 1. The dysarthria experienced by one (1.0%) patient was the only symptomatic procedure-related complication. After coil embolization, neither delayed new rupture nor re-rupture was observed. CONCLUSIONS The results of this study demonstrate that coil embolization is a safe and effective treatment option for patients with AchA aneurysms.
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Affiliation(s)
- Hyun Ki Roh
- Department of Neurosurgery, Chungnam National University Hospital, Chungnam National University School of Medicine, Dajeon, Korea
| | - Eun-Oh Jeong
- Department of Neurosurgery, Chungnam National University Hospital, Chungnam National University School of Medicine, Dajeon, Korea
| | - Kyung Hwan Kim
- Department of Neurosurgery, Chungnam National University Hospital, Chungnam National University School of Medicine, Dajeon, Korea
| | - Hee-Won Jeong
- Department of Neurosurgery, Chungnam National University Hospital, Chungnam National University School of Medicine, Dajeon, Korea
| | - Han-Joo Lee
- Department of Neurosurgery, Chungnam National University Hospital, Chungnam National University School of Medicine, Dajeon, Korea
| | - Seung-Won Choi
- Department of Neurosurgery, Chungnam National University Hospital, Chungnam National University School of Medicine, Dajeon, Korea
| | - Seon-Hwan Kim
- Department of Neurosurgery, Chungnam National University Hospital, Chungnam National University School of Medicine, Dajeon, Korea
| | - Hyeon-Song Koh
- Department of Neurosurgery, Chungnam National University Hospital, Chungnam National University School of Medicine, Dajeon, Korea
| | - Jin-Young Youm
- Department of Neurosurgery, Chungnam National University Hospital, Chungnam National University School of Medicine, Dajeon, Korea
| | - Hyon-Jo Kwon
- Department of Neurosurgery, Chungnam National University Hospital, Chungnam National University School of Medicine, Dajeon, Korea,Correspondence to Hyon-Jo Kwon Department of Neurosurgery, Chungnam National University Hospital, Chungnam National University School of Medicine, 282 Munhwa-ro, Jung-gu, Daejeon 35015, Korea Tel +82-42-280-8372 Fax +82-42-280-7363 E-mail
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Baek HJ, Heo YJ, Kim D, Yun SY, Baek JW, Jeong HW, Choo HJ, Lee JY, Oh SI. Usefulness of Wave-CAIPI for Postcontrast 3D T1-SPACE in the Evaluation of Brain Metastases. AJNR Am J Neuroradiol 2022; 43:857-863. [PMID: 35618423 DOI: 10.3174/ajnr.a7520] [Citation(s) in RCA: 1] [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: 02/03/2022] [Accepted: 03/24/2022] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND PURPOSE High-resolution postcontrast 3D T1WI is a widely used sequence for evaluating brain metastasis, despite the long scan time. This study aimed to compare highly accelerated postcontrast 3D T1-weighted sampling perfection with application-optimized contrasts by using different flip angle evolution by using wave-controlled aliasing in parallel imaging (wave-T1-SPACE) with the commonly used standard high-resolution postcontrast 3D T1-SPACE for the evaluation of brain metastases. MATERIALS AND METHODS Among the 387 patients who underwent postcontrast wave-T1-SPACE and standard SPACE, 56 patients with suspected brain metastases were retrospectively included. Two neuroradiologists assessed the number of enhancing lesions according to lesion size, contrast-to-noise ratiolesion/parenchyma, contrast-to-noise ratiowhite matter/gray matter, contrast ratiolesion/parenchyma, and overall image quality for the 2 different sequences. RESULTS Although there was no significant difference in the evaluation of larger enhancing lesions (>5 mm) between the 2 different sequences (P = .66 for observer 1, P = .26 for observer 2), wave-T1-SPACE showed a significantly lower number of smaller enhancing lesions (<5 mm) than standard SPACE (1.61 [SD, 0.29] versus 2.84 [SD, 0.47] for observer 1; 1.41 [SD, 0.19] versus 2.68 [SD, 0.43] for observer 2). Furthermore, mean contrast-to-noise ratiolesion/parenchyma and overall image quality of wave-T1-SPACE were significantly lower than those in standard SPACE. CONCLUSIONS Postcontrast wave-T1-SPACE showed comparable diagnostic performance for larger enhancing lesions (>5 mm) and marked scan time reduction compared with standard SPACE. However, postcontrast wave-T1-SPACE showed underestimation of smaller enhancing lesions (<5 mm) and lower image quality than standard SPACE. Therefore, postcontrast wave-T1-SPACE should be interpreted carefully in the evaluation of brain metastasis.
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Affiliation(s)
- H J Baek
- From the Department of Radiology (H.J.B.), Gyeongsang National University School of Medicine and Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea
| | - Y J Heo
- Department of Radiology (Y.J.H., D.K., S.Y.Y., J.W.B., H.W.J., H.J.C.), Inje University Busan Paik Hospital, Busan, Republic of Korea
| | - D Kim
- Department of Radiology (Y.J.H., D.K., S.Y.Y., J.W.B., H.W.J., H.J.C.), Inje University Busan Paik Hospital, Busan, Republic of Korea
| | - S Y Yun
- Department of Radiology (Y.J.H., D.K., S.Y.Y., J.W.B., H.W.J., H.J.C.), Inje University Busan Paik Hospital, Busan, Republic of Korea
| | - J W Baek
- Department of Radiology (Y.J.H., D.K., S.Y.Y., J.W.B., H.W.J., H.J.C.), Inje University Busan Paik Hospital, Busan, Republic of Korea
| | - H W Jeong
- Department of Radiology (Y.J.H., D.K., S.Y.Y., J.W.B., H.W.J., H.J.C.), Inje University Busan Paik Hospital, Busan, Republic of Korea
| | - H J Choo
- Department of Radiology (Y.J.H., D.K., S.Y.Y., J.W.B., H.W.J., H.J.C.), Inje University Busan Paik Hospital, Busan, Republic of Korea
| | - J Y Lee
- Department of Internal Medicine (J.Y.L), Inje University Busan Paik Hospital, Busan, Republic of Korea
| | - S-I Oh
- Department of Neurology (S.-I.O.), Inje University Busan Paik Hospital, Busan, Republic of Korea
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Jeong HW, Kim MK, Yi HJ, Kim DM, Jeon SJ, Lee HK, Oh YH, Hwang YO. Hepatitis A virus strains identified in jogaejeot associated with outbreaks in Seoul, South Korea. Lett Appl Microbiol 2021; 73:107-112. [PMID: 33797771 DOI: 10.1111/lam.13482] [Citation(s) in RCA: 1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 02/23/2021] [Accepted: 03/25/2021] [Indexed: 12/15/2022]
Abstract
Jogaejeot, seasoned Venerupis philippinarum, is a traditional Korean fermented food, and hepatitis A virus (HAV) can be transmitted through contaminated food, especially bivalve shellfish, causing acute gastroenteritis worldwide. Here, we carried out a phylogenetic analysis to identify and characterize HAV strains in jogaejeot samples associated with hepatitis A (HA) outbreaks in Seoul, South Korea, in 2019. The HAV strains were identified using blast and molecular analysis of the amplified HAV VP1-P2B genome region. The HAV strains identified in the five jogaejeot samples shared at least 99% sequence identity, were all classified as genotype IA and were most closely related to strains that are widespread in East Asia. These results support a link between the consumption of jogaejeot and the HA outbreaks observed in 2019 in Seoul. In addition, they indicate a need for more stringent enforcement of food safety regulations for the shellfish industry, especially against HAV, and the value of widespread vaccination.
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Affiliation(s)
- H W Jeong
- Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Korea
| | - M K Kim
- Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Korea
| | - H J Yi
- Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Korea
| | - D M Kim
- Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Korea
| | - S J Jeon
- Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Korea
| | - H K Lee
- Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Korea
| | - Y H Oh
- Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Korea
| | - Y O Hwang
- Seoul Metropolitan Government Research Institute of Public Health and Environment, Gyeonggi-do, Korea
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Kim D, Heo YJ, Jeong HW, Baek JW, Han JY, Lee JY, Jin SC, Baek HJ. Usefulness of the Delay Alternating with Nutation for Tailored Excitation Pulse with T1-Weighted Sampling Perfection with Application-Optimized Contrasts Using Different Flip Angle Evolution in the Detection of Cerebral Metastases: Comparison with MPRAGE Imaging. AJNR Am J Neuroradiol 2019; 40:1469-1475. [PMID: 31371358 DOI: 10.3174/ajnr.a6158] [Citation(s) in RCA: 7] [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: 02/22/2019] [Accepted: 06/27/2019] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Contrast-enhanced T1-weighted sampling perfection with application-optimized contrasts by using different flip angle evolution (SPACE) with the delay alternating with nutation for tailored excitation (DANTE) pulse could suppress the blood flow signal and provide a higher contrast-to-noise ratio of enhancing lesion-to-brain parenchyma than the MPRAGE sequence. The purpose of our study was to evaluate the usefulness of SPACE with DANTE compared with MPRAGE for detecting brain metastases. MATERIALS AND METHODS Seventy-one patients who underwent contrast-enhanced SPACE with DANTE and MPRAGE sequences and who were suspected of having metastatic lesions were included. Two neuroradiologists determined the number of enhancing lesions, and diagnostic performance was evaluated using figure of merit, sensitivity, positive predictive value, interobserver agreement, and reading time. Contrast-to-noise ratiolesion/parenchyma and contrast-to-noise ratiowhite matter/gray matter were also assessed. RESULTS SPACE with DANTE (observer one, 328; observer two, 324) revealed significantly more small (<5 mm) enhancing lesions than MPRAGE (observer one, 175; observer two, 150) (P < 0.001 for observer 1, P ≤ .0001 for observer 2). Furthermore, SPACE with DANTE showed significantly higher figure of merit and sensitivity and shorter reading time than MPRAGE for both observers. The mean contrast-to-noise ratiolesion/parenchyma of SPACE with DANTE (52.3 ± 43.1) was significantly higher than that of MPRAGE (17.5 ± 19.3) (P ≤ .0001), but the mean contrast-to-noise ratiowhite matter/gray matter of SPACE with DANTE (-0.65 ± 1.39) was significantly lower than that of MPRAGE (3.08 ± 1.39) (P ≤ .0001). CONCLUSIONS Compared with MPRAGE, SPACE with DANTE significantly improves the detection of brain metastases.
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Affiliation(s)
- D Kim
- From the Departments of Radiology (D.K., Y.J.H., H.W.J., J.W.B., J.-Y.H.)
| | - Y J Heo
- From the Departments of Radiology (D.K., Y.J.H., H.W.J., J.W.B., J.-Y.H.)
| | - H W Jeong
- From the Departments of Radiology (D.K., Y.J.H., H.W.J., J.W.B., J.-Y.H.)
| | - J W Baek
- From the Departments of Radiology (D.K., Y.J.H., H.W.J., J.W.B., J.-Y.H.)
| | - J-Y Han
- From the Departments of Radiology (D.K., Y.J.H., H.W.J., J.W.B., J.-Y.H.)
| | - J Y Lee
- Internal Medicine (J.Y.L.), Inje University Busan Paik Hospital, Busan, Korea
| | - S-C Jin
- Department of Neurosurgery (S.-C.J.), Inje University Haeundae Paik Hospital, Busan, Republic of Korea
| | - H J Baek
- Department of Radiology (H.J.B.), Gyeongsang National University School of Medicine and Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea
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Heo YJ, Jeong HW, Baek JW, Kim ST, Jeong YG, Lee JY, Jin SC. Pointwise Encoding Time Reduction with Radial Acquisition with Subtraction-Based MRA during the Follow-Up of Stent-Assisted Coil Embolization of Anterior Circulation Aneurysms. AJNR Am J Neuroradiol 2019; 40:815-819. [PMID: 30975655 DOI: 10.3174/ajnr.a6035] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 03/11/2019] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Time-of-flight MR angiography, though widely used after coil embolization, is associated with limitations owing to magnetic susceptibility and radiofrequency shielding following stent-assisted coil embolization. We evaluated the pointwise encoding time reduction with radial acquisition (PETRA) sequence in subtraction-based MRA (qMRA) using an ultrashort TE relative to TOF-MRA during the follow-up of stent-assisted coil embolization for anterior circulation aneurysms. MATERIALS AND METHODS Twenty-five patients (3 men and 22 women; mean age, 59.1 ± 14.0 years) underwent stent-assisted coil embolization for anterior circulation aneurysms and were retrospectively evaluated using TOF-MRA and PETRA qMRA data from the same follow-up session. Two neuroradiologists independently reviewed both MRA findings and subjectively graded flow within the stents (relative to the latest DSA findings) and occlusion status (complete occlusion or neck/aneurysm remnant). Interobserver and intermodality agreement for TOF-MRA and PETRA qMRA were evaluated. RESULTS The mean score for flow visualization within the stents was significantly higher in PETRA qMRA than in TOF-MRA (P < .001 for both observers), and good interobserver agreement was reported (κ = 0.63). The aneurysm occlusion status of PETRA qMRA (observer 1, 92.0%; observer 2, 88.0%) was more consistent with DSA than with TOF-MRA (observer 1, 76.0%; observer 2, 80.0%), and there was a better intermodality agreement between DSA and PETRA qMRA than between DSA and TOF-MRA. CONCLUSIONS These findings indicate that PETRA qMRA is a useful follow-up technique for patients who have undergone stent-assisted coil embolization for anterior circulation aneurysms.
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Affiliation(s)
- Y J Heo
- From the Departments of Radiology (Y.J.H., H.W.J., J.W.B.)
| | - H W Jeong
- From the Departments of Radiology (Y.J.H., H.W.J., J.W.B.)
| | - J W Baek
- From the Departments of Radiology (Y.J.H., H.W.J., J.W.B.)
| | - S T Kim
- Neurosurgery (S.T.K., Y.G.J.)
| | | | - J Y Lee
- Internal Medicine (J.Y.L.), Inje University Busan Paik Hospital, Busan, Korea
| | - S-C Jin
- Department of Neurosurgery (S.-C.J.), Inje University Haeundae Paik Hospital, Busan, Korea
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Kim ST, Baek JW, Jin SC, Park JH, Kim JS, Kim HY, Jeong HW, Jeong YG. Coil Embolization in Patients with Recurrent Cerebral Aneurysms Who Previously Underwent Surgical Clipping. AJNR Am J Neuroradiol 2018; 40:116-121. [PMID: 30573462 DOI: 10.3174/ajnr.a5909] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 10/10/2018] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Surgical revision of recurrent cerebral aneurysms is technically difficult. Therefore, coil embolization has been used as an alternative in these cases. The aim of this study was to evaluate the clinical and angiographic outcomes of coil embolization in patients with recurrent cerebral aneurysms after microsurgical clipping. MATERIALS AND METHODS Between May 1999 and February 2016, nineteen patients with 19 recurrent aneurysms who previously underwent surgical clipping were treated by coil embolization. RESULTS Nine patients presented with subarachnoid hemorrhage (47.4%). The interval between surgical clipping and coil embolization was 143.5 ± 66.1 months (range, 43-276 months). Single- or double-catheter coil embolization was performed in 16 patients. A balloon (n = 1) and stents (n = 2) were used to assist the coil embolization in 3 patients. Immediate radiologic findings after coil embolization showed complete occlusion in 10 patients, a residual neck in 8 patients, and a residual sac in 1 patient. Procedure-related permanent morbidity occurred in 1 patient. The mean clinical follow-up was 58.3 ± 38.8 months. Poor clinical outcomes (modified Rankin Scale score = ≥3) at the end of the clinical follow-up were reported in 5 patients (26.3%). Angiographic follow-up was available for 12 patients (63.2%). Major recurrence was detected in 5 patients (41.7%), and a tendency for aneurysm regrowth rather than coil compaction was noted in all cases. CONCLUSIONS In our series, coil embolization for recurrent aneurysms after surgical clipping was feasible but had a high recurrence rate and tended to result in aneurysm regrowth rather than coil compaction.
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Affiliation(s)
- S-T Kim
- From the Departments of Neurosurgery (S.-T.K., J.H.P., Y.G.J.)
| | - J W Baek
- Diagnostic Radiology (J.W.B., H.W.J.), Busan Paik Hospital, Inje University, College of Medicine, Busan, Republic of Korea
| | - S-C Jin
- Department of Neurosurgery (S.-C.J., J.S.K., H.Y.K.), Haeundae Paik Hospital, Inje University, College of Medicine, Busan, Republic of Korea.
| | - J H Park
- From the Departments of Neurosurgery (S.-T.K., J.H.P., Y.G.J.)
| | - J S Kim
- Department of Neurosurgery (S.-C.J., J.S.K., H.Y.K.), Haeundae Paik Hospital, Inje University, College of Medicine, Busan, Republic of Korea
| | - H Y Kim
- Department of Neurosurgery (S.-C.J., J.S.K., H.Y.K.), Haeundae Paik Hospital, Inje University, College of Medicine, Busan, Republic of Korea
| | - H W Jeong
- Diagnostic Radiology (J.W.B., H.W.J.), Busan Paik Hospital, Inje University, College of Medicine, Busan, Republic of Korea
| | - Y G Jeong
- From the Departments of Neurosurgery (S.-T.K., J.H.P., Y.G.J.)
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Jeong HW, Choi SW, Youm JY, Lim JW, Kwon HJ, Song SH. Mortality and Epidemiology in 256 Cases of Pediatric Traumatic Brain Injury: Korean Neuro-Trauma Data Bank System (KNTDBS) 2010-2014. J Korean Neurosurg Soc 2017; 60:710-716. [PMID: 29142631 PMCID: PMC5678058 DOI: 10.3340/jkns.2016.1010.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 10/05/2016] [Revised: 01/31/2017] [Accepted: 06/14/2017] [Indexed: 11/27/2022] Open
Abstract
Objective Among pediatric injury, brain injury is a leading cause of death and disability. To improve outcomes, many developed countries built neurotrauma databank (NTDB) system but there was not established nationwide coverage NTDB until 2009 and there have been few studies on pediatric traumatic head injury (THI) patients in Korea. Therefore, we analyzed epidemiology and outcome from the big data of pediatric THI. Methods We collected data on pediatric patients from 23 university hospitals including 9 regional trauma centers from 2010 to 2014 and analyzed their clinical factors (sex, age, initial Glasgow coma scale, cause and mechanism of head injury, presence of surgery). Results Among all the 2617 THI patients, total number of pediatric patients was 256. The average age of the subjects was 9.07 (standard deviation±6.3) years old. The male-to female ratio was 1.87 to 1 and male dominance increases with age. The most common cause for trauma were falls and traffic accidents. Age (p=0.007), surgery (p<0.001), mechanism of trauma (p=0.016), subdural hemorrhage (SDH) (p<0.001), diffuse axonal injury (DAI) (p<0.001) were statistically significant associated with severe brain injury. Conclusion Falls were the most common cause of trauma, and age, surgery, mechanism of trauma, SDH, DAI increased with injury severity. There is a critical need for effective fall and traffic accidents prevention strategies for children, and we should give attention to these predicting factors for more effective care.
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Affiliation(s)
- Hee-Won Jeong
- Department of Neurosurgery, Chungnam National University Hospital, Daejeon, Korea
| | - Seung-Won Choi
- Department of Neurosurgery, Chungnam National University Hospital, Daejeon, Korea
| | - Jin-Young Youm
- Department of Neurosurgery, Chungnam National University Hospital, Daejeon, Korea
| | - Jeong-Wook Lim
- Department of Neurosurgery, Chungnam National University Hospital, Daejeon, Korea
| | - Hyon-Jo Kwon
- Department of Neurosurgery, Chungnam National University Hospital, Daejeon, Korea
| | - Shi-Hun Song
- Department of Neurosurgery, Chungnam National University Hospital, Daejeon, Korea
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Park DJ, Yang WG, Jeong HW, Ryu KS. Study of Zinc Compounds for Improving the Reversibility of the Zinc Anode in Zinc-Air Secondary Batteries. B KOREAN CHEM SOC 2017. [DOI: 10.1002/bkcs.11157] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Da-Jeong Park
- Department of Chemistry; University of Ulsan; Ulsan 680-749 Korea
| | - Won-Geun Yang
- Department of Chemistry; University of Ulsan; Ulsan 680-749 Korea
| | - Hee-Won Jeong
- Department of Chemistry; University of Ulsan; Ulsan 680-749 Korea
| | - Kwang-Sun Ryu
- Department of Chemistry; University of Ulsan; Ulsan 680-749 Korea
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12
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Jeong HW, Chon SC. Effects of a novel forced intensive strengthening technique on muscle size and upper extremity function in a patient with chronic stroke. J Phys Ther Sci 2015; 27:3607-11. [PMID: 26696748 PMCID: PMC4681955 DOI: 10.1589/jpts.27.3607] [Citation(s) in RCA: 3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 08/19/2015] [Indexed: 11/24/2022] Open
Abstract
[Purpose] This research demonstrated a forced intensive strength technique as a novel
treatment for muscle power and function in the affected upper extremity muscle to
determine the clinical feasibility with respect to upper extremity performance in a stroke
hemiparesis. [Subject and Methods] The subject was a patient with chronic stroke who was
dependent on others for performing the functional activities of his affected upper
extremity. The technique incorporates a comprehensive approach of forced, intensive, and
strength-inducing activities to enhance morphological changes associated with motor
learning of the upper extremity. The forced intensive strength technique consisted of a
6-week course of sessions lasting 60 minutes per day, five times a week. [Results] After
the 6-week intervention, the difference between relaxation and contraction of the affected
extensor carpi radialis muscle increased from 0.28 to 0.63 cm2, and that of the
affected triceps brachii muscle increased from 0.30 to 0.90 cm2. The results of
clinical tests including the modified Ashworth scale (MAS; from 1+ to 1), muscle strength
(from 15 to 32 kg), the manual function test (MFT; scores of 16/32 to 27/32 score), the
Fugl-Meyer assessment (FMA; scores of 29/66 to 49/66 score), and the Jebsen-Taylor hand
function test (JTHFT; from 38/60 to 19/60 sec) were improved. [Conclusion] Our results
suggest that the forced intensive strength technique may have a beneficial effect on the
muscle size of the upper extremity and motor function in patients with chronic stroke.
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Affiliation(s)
- Hee-Won Jeong
- Department of Physical Therapy, Konyang University, Republic of Korea
| | - Seung-Chul Chon
- Department of Physical Therapy, Konyang University, Republic of Korea
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13
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Jeong HW, Jin SC. Intra-arterial infusion of a glycoprotein IIb/IIIa antagonist for the treatment of thromboembolism during coil embolization of intracranial aneurysm: a comparison of abciximab and tirofiban. AJNR Am J Neuroradiol 2013; 34:1621-5. [PMID: 23660289 DOI: 10.3174/ajnr.a3501] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Abciximab and tirofiban are commonly used for the treatment of thromboembolisms that form during coiling of intracranial aneurysms; however, it is not known which of these inhibitors is safer and more effective. We report the safety and the recanalization rates for intra-arterial abciximab and intra-arterial tirofiban infusion for the treatment of thromboembolisms that form during coiling. MATERIALS AND METHODS Between March 2004 and April 2011, 346 intracranial aneurysms were treated with coiling. Thromboembolisms developed in 22 of these patients and were treated by use of intra-arterial tirofiban (n = 11) or abciximab (n = 11) infusion. RESULTS In the abciximab group, the thromboembolisms were completely (n = 1) or partially (n = 7) resolved in 8 cases (72.7%) at the time of the final control angiography. Complete (n = 9) or partial (n = 2) resolution was achieved in all cases at the time of follow-up angiography (<3 days after the procedure). In the tirofiban group, thromboembolisms were completely (n = 4) or partially (n = 6) resolved in 10 cases (90.9%) at the time of the final control angiography. Complete (n = 9) or partial (n = 2) resolution was observed in all cases at the time of the follow-up angiography. There were no statistically significant differences between the 2 groups with respect to thrombus resolution (final angiography, P = .311; follow-up angiography, P = .707). No hemorrhagic complications developed in either group. CONCLUSIONS These results suggest that tirofiban is more effective than abciximab for the immediate resolution of thromboembolisms, with no statistical significance. Both intra-arterial tirofiban and abciximab exhibited similar safety and recanalization rates.
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Affiliation(s)
- H W Jeong
- Department of Diagnostic Radiology, Busan Paik Hospital, Inje University, Busan, Korea
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Abstract
Gastric syphilis has non-specific symptoms and various endoscopic and radiographic findings. Spirochetes are seen infrequently in biopsy specimens and the pathological findings are often non-specific. So it is very difficult to make a definitive diagnosis of gastric syphilis based on clinical symptoms and biopsy findings. We report the case of a gastric syphilis with neurosyphilis presented with epigastric pain. This case reminds us that gastric syphilis is one possibility in ulcerative gastric lesions.
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Affiliation(s)
- H W Jeong
- Department of Internal Medicine, College of Medicine, Chungbuk National University, Cheongju, Republic of Korea.
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Abstract
To determine the genetic relationships among domestic dog breeds, we performed both a sequence comparison of mitochondrial DNA (mtDNA) and an amplified fragment length polymorphisms (AFLP) analysis. Three of four regions of mtDNA, cytochrome b, cytochrome oxidase subunit II, and 16S rRNA genes were highly homogeneous among dog breeds, whereas the other region, the control region, showed relatively high polymorphisms with a maximum percentage difference of 3.18%. However, the control region showed extensive polymorphism even within breeds, and the relationship tree derived from the data could not clearly delimit distinct breeds. 19 EcoRI/MseI primer combinations were used to generate AFLP markers among 25 dogs from 11 breeds including three Korean native dogs. These amplification reactions allowed the detection of more than 1900 amplification products of which 408 were identified as polymorphic bands. Unrooted neighbor-joining tree based on dissimilarity values showed that the Korean native dogs were clustered together with the Asian dogs and that the Asian originated dogs were clustered separately from Western originated dogs. A consensus tree using parsimony method also showed Korean native dogs were grouped separately from the other dogs with moderate bootstrap values. Taken together, it is concluded that AFLP analysis is a more informative tool for revealing genetic relationships among dog breeds than mtDNA sequence comparison.
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Affiliation(s)
- K S Kim
- Department of Genetic Engineering, Kyungpook National University, Taegu, Korea
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16
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Abstract
A series of cinnamaldehydes was synthesized for the study of inhibitory activity against cyclin dependent kinases (CDKs). A couple of compounds selectively inhibited cyclin D1-CDK4 with an IC50 value of 7-18 microM.
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Affiliation(s)
- H W Jeong
- Korea Research Institute of Bioscience and Biotechnology, KIST, Taejon, South Korea
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Kwon JY, Jeong HW, Kim HK, Kang KH, Chang YH, Bae KS, Choi JD, Lee UC, Son KH, Kwon BM. cis-fumagillin, a new methionine aminopeptidase (type 2) inhibitor produced by Penicillium sp. F2757. J Antibiot (Tokyo) 2000; 53:799-806. [PMID: 11079802 DOI: 10.7164/antibiotics.53.799] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [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
Selective inhibition against the yeast MetAP2 (methionine aminopeptidase type 2) was detected in the fermentation broth of a fungus F2757 that was later identified as Penicillium janczewskii. A new compound cis-fumagillin methyl ester (1) was isolated from the diazomethane treated fermentation extracts together with the known compound fumagillin methyl ester (2). The cis-fumagillin methyl ester, a stereoisomer of fumagillin methyl ester at the C2'-C3' position of the aliphatic side chain, selectively inhibited growth of the map1 mutant yeast strain (MetAP1 deletion strain) at a concentration as low as 1 ng. However, the wild type yeast w303 and the mutant map2 (MetAP2 deleted) strains were resistant up to 10 microg of the compound. In enzyme experiments, compound 1 inhibited the MetAP2 with an IC50 value of 6.3 nM, but it did not inhibit the MetAP1 (IC50 >200 microM). Compound 2 also inhibited the MetAP2 with an IC50 value of 9.2 nM and 105 microM against MetAP1.
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Affiliation(s)
- J Y Kwon
- Korea Research Institute of Bioscience and Biotechnology, Yusong, Taejon, Republic of Korea
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Abstract
The complete nucleotide sequence of the mitochondrial genome of the domestic dog, Canis familiaris, was determined. The length of the sequence was 16,728 bp; however, the length was not absolute due to the variation (heteroplasmy) caused by differing numbers of the repetitive motif, 5'-GTACACGT(A/G)C-3', in the control region. The genome organization, gene contents, and codon usage conformed to those of other mammalian mitochondrial genomes. Although its features were unknown, the "CTAGA" duplication event which followed the translational stop codon of the COII gene was not observed in other mammalian mitochondrial genomes. In order to determine the possible differences between mtDNAs in carnivores, two rRNA and 13 protein-coding genes from the cat, dog, and seal were compared. The combined molecular differences, in two rRNA genes as well as in the inferred amino acid sequences of the mitochondrial 13 protein-coding genes, suggested that there is a closer relationship between the dog and the seal than there is between either of these species and the cat. Based on the molecular differences of the mtDNA, the evolutionary divergence between the cat, the dog, and the seal was dated to approximately 50 +/- 4 million years ago. The degree of difference between carnivore mtDNAs varied according to the individual protein-coding gene applied, showing that the evolutionary relationships of distantly related species should be presented in an extended study based on ample sequence data like complete mtDNA molecules.
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Affiliation(s)
- K S Kim
- Department of Genetic Engineering, Kyungpook National University, Taegu City, 702-701, Korea
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