1.Feasibility, Safety, and Follow-up Angiographic Results of Endovascular Treatment for Non-Selected Ruptured Intracranial Aneurysms Under Local Anesthesia with Conscious Sedation
Jongsoo KANG ; Chul Hoo KANG ; Jieun ROH ; Jeong A YEOM ; Dong Hyun SHIM ; Young Soo KIM ; Sang Won LEE ; Young Soo KIM ; Kee Hong PARK ; Chang Hun KIM ; Soo Kyoung KIM ; Nack Cheon CHOI ; Oh Young KWON ; Heeyoung KANG ; Seung Kug BAIK
Journal of Neurocritical Care 2018;11(2):93-101
BACKGROUND: At most centers, general anesthesia (GA) has been preferred for endovascular treatment (EVT) of ruptured intracranial aneurysms (RIAs). In this study, we analyzed procedural results, clinical outcomes, and follow-up angiographic findings for patients undergoing EVT for RIA under local anesthesia (LA) with conscious sedation (CS). METHODS: We retrospectively evaluated 308 consecutive patients who underwent EVT for RIAs at a single institution between June 2009 and February 2017. EVT under LA with CS was considered for all patients with aneurysmal subarachnoid hemorrhage, regardless of Hunt and Hess (HH) scale score. RESULTS: EVT was performed for 320 aneurysms in 308 patients with subarachnoid hemorrhages. The mean patient age was 55.5±12.6 years. Moderate (III) and poor (IV, V) HH grades were observed in 75 (24.4%) and 77 patients (25%), respectively. Complete occlusion immediately after EVT was achieved for 270 (84.4%) of 320 aneurysms. Thromboembolic complications and intraprocedural ruptures occurred in 25 (7.8%) and 14 cases (4.3%), respectively. The morbidity rate at discharge (as defined by a modified Rankin scale score of 3 or greater) was 27.3% (84/308), while the mortality rate was 11.7% (36/308). Follow-up angiographic results were available for 210 (68.1%) of 308 patients. Recanalization was observed in 64 (29.3%) of 218 aneurysms in 210 patients. CONCLUSION: Based on our experience, EVT for RIAs under LA with CS was feasible, regardless of the clinical grade of the subarachnoid hemorrhage. Complication rates and follow-up angiographic results were also comparable to those observed when GA was used to perform the procedure.
Anesthesia, General
;
Anesthesia, Local
;
Aneurysm
;
Conscious Sedation
;
Endovascular Procedures
;
Follow-Up Studies
;
Humans
;
Intracranial Aneurysm
;
Mortality
;
Retrospective Studies
;
Rupture
;
Subarachnoid Hemorrhage
2.Pipeline Embolization Device for Large/Giant or Fusiform Aneurysms: An Initial Multi-Center Experience in Korea.
Byung Moon KIM ; Yong Sam SHIN ; Min Woo BAIK ; Deok Hee LEE ; Pyoung JEON ; Seung Kug BAIK ; Tae Hong LEE ; Dong Hoon KANG ; Sang il SUH ; Jun Soo BYUN ; Jin Young JUNG ; Kihun KWON ; Dong Joon KIM ; Keun Young PARK ; Bum soo KIM ; Jung Cheol PARK ; Seong Rim KIM ; Young Woo KIM ; Hoon KIM ; Kyungil JO ; Chang Hyo YOON ; Young Soo KIM
Neurointervention 2016;11(1):10-17
PURPOSE: The purpose of this study was to assess the safety and early outcomes of the Pipeline device for large/giant or fusiform aneurysms. MATERIALS AND METHODS: The Pipeline was implanted in a total of 45 patients (mean age, 58 years; M:F=10:35) with 47 large/giant or fusiform aneurysms. We retrospectively evaluated the characteristics of the treated aneurysms, the periprocedural events, morbidity and mortality, and the early outcomes after Pipeline implantation. RESULTS: The aneurysms were located in the internal carotid artery (ICA) cavernous segment (n=25), ICA intradural segment (n=11), vertebrobasilar trunk (n=8), and middle cerebral artery (n=3). Procedure-related events occurred in 18 cases, consisting of incomplete expansion (n=8), shortening-migration (n=5), transient occlusion of a jailed branch (n=3), and in-stent thrombosis (n=2). Treatment-related morbidity occurred in two patients, but without mortality. Both patients had modified Rankin scale (mRS) scores of 2, but had an improved mRS score of 0 at 1-month follow-up. Of the 19 patients presenting with mass effect, 16 improved but three showed no changes in their presenting symptoms. All patients had excellent outcomes (mRS, 0 or 1) during the follow-up period (median, 6 months; range, 2-30 months). Vascular imaging follow-up (n=31, 65.9%; median, 3 months, range, 1-25 months) showed complete or near occlusion of the aneurysm in 24 patients (77.4%) and decreased sac size in seven patients (22.6%). CONCLUSION: In this initial multicenter study in Korea, the Pipeline seemed to be safe and effective for large/giant or fusiform aneurysms. However, a learning period may be required to alleviate device-related events.
Aneurysm*
;
Carotid Artery, Internal
;
Follow-Up Studies
;
Humans
;
Korea*
;
Learning
;
Middle Cerebral Artery
;
Mortality
;
Retrospective Studies
;
Thrombosis
3.An Integrated Database and Web Service for Microbial Resources at KACC.
Chang Kug KIM ; Young Ah JEON ; Gyu Taek CHO ; Soon Wo KWON ; Yong Hwan KIM ; Seung Beom HONG
Genomics & Informatics 2009;7(1):41-45
The Korean Agricultural Culture Collection (KACC) has developed a web-based system to provide an integrated database with information updates about microbial resources. This integrated database consists of 5 major functions and contains general information, which includes identification numbers, culture media composition, image information, DNA sequences, patent information, and general forms for ordering and depositing microorganisms. In 2008, KACC started providing characterization information. KACC maintains 9,801 cultures of microorganisms, including 3,296 strains of bacteria, 4,734 fungi, 784 actinomycetes, 64 yeasts, and 923 others.
Actinobacteria
;
Bacteria
;
Base Sequence
;
Culture Media
;
Fungi
;
Yeasts
4.A Case of Multiple Micronodular Pneumocyte Hyperplasia of the Lung in a Man with Tuberous Sclerosis.
Dong Hyuk NAM ; Yoon Jung CHOI ; Ju Hyun LEE ; Hyoung Jung NA ; Dong Hwan KIM ; Chong Ju KIM ; Sun Min LEE ; Yong Kug HONG ; Chang Hoon HAN
Tuberculosis and Respiratory Diseases 2008;64(5):369-373
Tuberous sclerosis (TS) is an autosomal dominant disorder that is characterized by cutaneous lesions, seizures, mental retardation and hamartomas in various organs including the skin, kidney and brain. Pulmonary involvement is extremely rare, and occurs in approximately 0.1 to 1% of TS cases. Recent reports have indicated multiple micronodular pneumocyte hyperplasia (MMPH) as another rare form of pulmonary involvement of tuberous sclerosis. We report a case of a 35 year-old-male patient who had no pulmonary symptoms but showed multinodular pulmonary shadows on his chest CT scan. The patient was finally diagnosed with TS with MMPH of the lung. MMPH does not appear to have any malignant potential but the clinical significance of MMPH in TS patients is unknown.(Tuberc Respir Dis 2008;64:369-373)
Brain
;
Hamartoma
;
Humans
;
Hyperplasia
;
Intellectual Disability
;
Kidney
;
Lung
;
Pneumocytes
;
Seizures
;
Skin
;
Thorax
;
Tuberous Sclerosis
6.Effects of endocrine disrupting chemicals on expression of phospholipid hydroperoxide glutathione peroxidase mRNA in rat testes.
In Jeoung BAEK ; Jung Min YON ; Se Ra LEE ; Yan JIN ; Mi Ra KIM ; Byeongwoo AHN ; Jin Tae HONG ; Young Kug CHOO ; Beom Jun LEE ; Young Won YUN ; Sang Yoon NAM
Journal of Veterinary Science 2007;8(3):213-218
Phospholipid hydroperoxide glutathione peroxidase(PHGPx), an antioxidative selenoprotein, is modulated byestrogen in the testis and oviduct. To examine whetherpotential endocrine disrupting chemicals (EDCs) affectthe microenvironment of the testes, the expression patternsof PHGPx mRNA and histological changes were analyzedin 5-week-old Sprague-Dawley male rats exposed to severalEDCs such as an androgenic compound [testosterone (50,200, and 1,000microg/kg)], anti-androgenic compounds [flutamide(1, 5, and 25mg/kg), ketoconazole (0.2 and 1mg/kg), anddiethylhexyl phthalate (10, 50, and 250mg/kg)], andestrogenic compounds [nonylphenol (10, 50, 100, and 250mg/kg), octylphenol (10, 50, and 250mg/kg), and diethyl-stilbestrol (10, 20, and 40microg/kg)] daily for 3 weeks via oraladministration. Mild proliferation of germ cells andhyperplasia of interstitial cells were observed in the testesof the flutamide-treated group and deletion of thegerminal epithelium and sloughing of germ cells wereobserved in testes of the diethylstilbestrol-treated group.Treatment with testosterone was shown to slightly decreasePHGPx mRNA levels in testes by the reverse transcription-polymerase chain reaction. However, anti-androgeniccompounds (flutamide, ketoconazole, and diethylhexylphthalate) and estrogenic compounds (nonylphenol,octylphenol, and diethylstilbestrol) significantly up-regulated PHGPx mRNA in the testes (p<0.05). Thesefindings indicate that the EDCs might have a detrimentaleffect on spermatogenesis via abnormal enhancement ofPHGPx expression in testes and that PHGPx is useful as abiomarker for toxicity screening of estrogenic or anti-androgenic EDCs in testes.
Androgen Antagonists/pharmacology
;
Animals
;
Diethylhexyl Phthalate/pharmacology
;
Diethylstilbestrol/pharmacology
;
Endocrine Disruptors/*pharmacology
;
Estrogens, Non-Steroidal/pharmacology
;
Flutamide/pharmacology
;
Glutathione Peroxidase/*biosynthesis/genetics
;
Histocytochemistry
;
Ketoconazole/pharmacology
;
Male
;
Phenols/pharmacology
;
RNA, Messenger/*biosynthesis/genetics
;
Rats
;
Rats, Sprague-Dawley
;
Reverse Transcriptase Polymerase Chain Reaction
;
Spermatogenesis/drug effects
;
Testis/*drug effects/*enzymology
;
Testosterone/pharmacology
7.A Case of Bronchiolitis Obliterans Organizing Pneumonia from Epstein-Barr Virus.
Hyoung Jung NA ; Sueng Up KIM ; Do Hyun KIM ; Dong Hyug NAM ; Sun Min LEE ; Chong Ju KIM ; Jeong Hae KIE ; Yong Kug HONG
Tuberculosis and Respiratory Diseases 2007;62(1):51-55
In the average adult with a normal immune state, Epstein-Barr virus pneumonia is very rare, especially in the form of interstitial lung disease. According to recent studies, the Epstein-Barr virus is also associated with lymphocytic interstitial pneumonia, AIDS and Langerhans cell histiocytosis, but not with sarcoidosis. BOOP is caused by lung injury due to an infection or drug intoxication, and is related to connective tissue disease or bone marrow transplantation, but is sometimes idiopathic. We experienced a patient with symptoms and signs of interstitial lung disease, with confirmed BOOP and EBV ingection from an open lung biopsy and serologic examination, respectively Herein, this case is reported, with a review of the literature.
Adult
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Biopsy
;
Bone Marrow Transplantation
;
Bronchiolitis Obliterans*
;
Bronchiolitis*
;
Connective Tissue Diseases
;
Cryptogenic Organizing Pneumonia*
;
Herpesvirus 4, Human*
;
Histiocytosis, Langerhans-Cell
;
Humans
;
Lung
;
Lung Diseases, Interstitial
;
Lung Injury
;
Pneumonia
;
Sarcoidosis
8.A study about early osteoconductivity of porous alloplastic carbonapatite and anorganic bovine xenograft in canine maixlliary augmentation model
Do Kyun KIM ; Tae Hyung CHO ; Yun Mi SONG ; Hui PAN ; Su Yeon LEE ; Im Geon JIN ; In Sook KIM ; Kug Sun HONG ; Soon Jung HWANG
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 2007;29(6):485-493
Animals
;
Bone Regeneration
;
Bone Substitutes
;
Carbon
;
Dogs
;
Durapatite
;
Heterografts
;
Mouth
;
Osteogenesis
;
Transplants
9.Evaluation of Osteosynthesis in CaO-SiO2-P2O5-B2O3 Glass-ceramics by Posterolateral Fusion of Rabbit Lumbar vertebrae.
Jae Hyup LEE ; Kun Woo PARK ; Kwang Sup SONG ; Hyun Seung RYU ; Jun Hyuk SEO ; Kug Sun HONG ; Hwan KIM ; Bong Soon CHANG ; Choon Ki LEE
Journal of Korean Society of Spine Surgery 2005;12(1):1-11
STUDY DESIGN: A comparative in vivo study between ceramics with different compositions. OBJECTIVES: To compare the biodegradation and osteoconduction properties of CaO-SiO2- P2O5- B2O3 glass-ceramics and Cerabone(R)-AW. Summary of Literature Review: Bioglass ceramics can be used as bone graft substitutes. However, no study has been undertaken to investigate the possibility of CaO-S i O2-P2O5-B2O3 glass-ceramics as a bone graft substitute. MATERIALS AND METHODS: Porous CSPB2 implants (44.07% CaO, 40.28% SiO2, 8.1% P2O5 and 5.0% B2O3), porous CSPB3 implants (43.76% CaO, 43.41% SiO2, 4.05% P2O5 and 7.5% B2O3) and porous Cerabone(R)-AW were prepared by the polymer sponge method. Single-level posterolateral spinal fusions were performed on sixty New Zealand white male rabbits. The animals were divided into four groups (9 of autograft, 17 per 3 kind of porous implant group) according to the implant material used: autograft, CSPB2, CSPB3 and Cerabone(R)-AW. Radiographs were performed every two weeks. All animals were sacrificed 12 weeks after surgery. Manual palpation and uniaxial tensile strength were determined. The proportion of the area occupied by the ceramics in the final compared to the initial radiographs was calculated. Decalcified and undecalcified histological sections were evaluated by light microscopy. RESULTS: Fifty one rabbits were evaluated. The union rates were 100 (9 out of 9), 80 (8 out of 8), 81.1 (9 out of 11) and 90.9% (10 out of 11) in the autograft, Cerabone(R)-AW, CSPB2 and CSPB3 groups, respectively. The proportion of the area occupied by Cerabone(R)-AW (90.8 % +/- 14.0) was significantly higher than for CSPB2 (73.1% +/- 11.5) and CSPB3 (73.5% +/- 10.0)(p=0.0011). The mean values of the tensile strengths of Cerabone(R)-AW (214. +/- 57.3N), CSPB2 (214. +/- 57.3 N) and CSPB3 (217 +/- 70.1 N) were not significantly different (p>0.05). CONCLUSION: CSPB2 and CSPB3 had similar tensile strengths and fusion rates of the fusion masses as those of Cerabone(R)-AW; however, they degraded more rapidly than Cerabone(R)-AW. These findings suggest that CSPB2 and CSPB3 grafts can be used as a more ideal new bone graft substitutes than Cerabone(R)-AW.
Animals
;
Autografts
;
Bone Regeneration
;
Ceramics
;
Humans
;
Lumbar Vertebrae*
;
Male
;
Microscopy
;
New Zealand
;
Palpation
;
Polymers
;
Porifera
;
Rabbits
;
Spinal Fusion
;
Tensile Strength
;
Transplants
10.Finite element analysis of cylinder type implant placed into regenerated bone with type IV bone quality.
Byung Ock KIM ; Kug Sun HONG ; Su Gwan KIM
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2004;30(4):331-338
Stress transfer to the surrounding tissues is one of the factors involved in the design of dental implants. Unfortunately, insufficient data are available for stress transfer within the regenerated bone surrounding dental implants. The purpose of this study was to investigate the concentration of stresses within the regenerated bone surrounding the implant using three-dimensional finite element stress analysis method. Stress magnitude and contours within the regenerated bone were calculated. The 3.75*10-mm implant (3i, USA) was used for this study and was assumed to be 100% osseointegrated, and was placed in mandibular bone and restored with a cast gold crown. Using ANSYS software revision 6.0, a program was written to generate a model simulating a cylindrical block section of the mandible 20 mm in height and 10 mm in diameter. The present study used a fine grid model incorporating elements between 165,148 and 253,604 and nodal points between 31,616 and 48,877. This study was simulated loads of 200N at the central fossa (A), at the outside point of the central fossa with resin filling into screw hole (B), and at the buccal cusp (C), in a vertical and 30degree lateral loading, respectively. The results were as follows; 1. In case the regenerated bone (bone quality type IV) was surrounded by bone quality type I and II, stresses were increased from loading point A to C in vertical loading. And stresses according to the depth of regenerated bone were distributed along the implant evenly in loading point A, concentrated on the top of the cylindrical collar loading point B and C in vertical loading. And, In case the regenerated bone (bone quality type IV) was surrounded by bone quality type III, stresses were increase from loading point A to C in vertical loading. And stresses according to the depth of regenerated bone were distributed along the implant evenly in loading point A, B and C in vertical loading. 2. In case the regenerated bone (bone quality type IV) was surrounded by bone quality type I and II, stresses were decreased from loading point A to C in lateral loading. Stresses according to the depth of regenerated bone were concentrated on the top of the cylindrical collar in loading point A and B, distributed along the implant evenly in loading point C in lateral loading. And, In case the regenerated bone (bone quality type IV) was surrounded by bone quality type III, stresses were decreased from loading point A to C in lateral loading. And stresses according to the depth of regenerated bone were distributed along the implant evenly in loading point A, B and C in lateral loading. In summary, these data indicate that both bone quality surrounding the regenerated bone adjacent to implant fixture and load direction applied on the prosthesis could influence concentration of stress within the regenerated bone surrounding the cylindrical type implant fixture.
Crowns
;
Dental Implants
;
Finite Element Analysis*
;
Mandible
;
Prostheses and Implants

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