2.Lung/Heart uptake ratio in dipyridamole Tc-MIBI myocardial perfusion scan in coronary artery disease.
Keon Wook KANG ; Dong Soo LEE ; Chang Woon CHOI ; Kyung Han LEE ; June Key CHUNG ; Myung Chul LEE ; Jung Don SEO ; Chang Soon KOH
Korean Journal of Nuclear Medicine 1993;27(2):218-222
No abstract available.
Coronary Artery Disease*
;
Coronary Vessels*
;
Dipyridamole*
;
Perfusion*
3.Prevalence of fimA Genotypes of Porphyromonas gingivalis Strains in peri-implant sulcus.
Dong Keon SEO ; Young Hyuk KWON ; Joon Bong PARK ; Yeek HERR ; Jong Hyuk CHUNG
The Journal of the Korean Academy of Periodontology 2005;35(4):907-919
Porphyromonas gingivalis is a gram negative, black-pigmented anaerobe, associated with periodontitis & peri-implantitis. Fimbriae(fimA) of P. gingivalis are filamentous components on the cell surface and important in the colonization and invasion of periodontal tissue. But all P. gnigivalis strains don't have equal pathogenicity, inequality among strains originates from different fimA genotype. P. gnigivalis fimA gene encoding fimbrillin(structural subunit of fimbriae) has been classified into 5 genotypes(typesI to V) based on the nucleotide sequences. In the present study, we examined the prevalence of these fimA genotypes in patients with dental implant and the relationship between prevalence of these genotypes and a condition of peri-implant tissue. Dental plaque specimens obtained from 189 peri-implant sulci of 97 patients with dental implants were analyzed by 16S rRNA fimA gene-directed PCR assay. P. gingivalis were detected in 86.2% of the alll samples. Among the P. gingivalis-positive samples, a significant difference in the occurrence of typeII was observed between test and the two control groups. In two control groups, typeII fimA were detected in 6.3%(PD<5mm/BOP-), 18.7%(PD<5mm/BOP+). In the test group(PD> or =5mm/BOP+), typeII fimA genotype were detected most frequently in 50.0% . And a correlation between specific fimA types and peri-implantitis was found in typeII(R(2)=1.105). These results suggest that P. gingivalis strains that possess typeII fimA are gradually increased, as a condition of peri-implant tissue is getting complicated and are closely associated with peri-implant health status. We speculate that these organisms be involved in peri-implantitis
Base Sequence
;
Colon
;
Dental Implants
;
Dental Plaque
;
Genotype*
;
Humans
;
Peri-Implantitis
;
Periodontitis
;
Polymerase Chain Reaction
;
Porphyromonas gingivalis*
;
Porphyromonas*
;
Prevalence*
;
Socioeconomic Factors
;
Virulence
4.Global Burden of Vaccine-Associated Cerebrovascular Venous Sinus Thrombosis, 1968–2024: A Critical Analysis From the WHO Global Pharmacovigilance Database
Jaehyeong CHO ; Hyesu JO ; Hyunjee KIM ; Jaeyu PARK ; Damiano PIZZOL ; Min Seo KIM ; Ho Geol WOO ; Dong Keon YON
Journal of Korean Medical Science 2025;40(11):e101-
Despite widespread coronavirus disease 2019 (COVID-19) vaccine use, research on the association between vaccines and cerebrovascular venous sinus thrombosis (CVST) in diverse populations is limited. This study aimed to address this gap. Data from the World Health Organization pharmacovigilance database (1968–2024; total reports = 8,909,484) were used.Reporting odds ratios (RORs) and information components (ICs) were calculated to assess the association between each drug and CVST. In total, 851 cases were identified as vaccineassociated CVST, of which 527 (61.93%) occurred in female patients. Only Ad5-vectored COVID-19 vaccines had the highest ROR and IC value with CVST (ROR, 4.78; 95% confidence interval, 4.34–5.28; IC, 2.15). The risk of CVST increased with age, with the 45–64-years age group having an IC of 1.35, while the 65 years and older group had a higher IC of 2.08.The findings highlight the need for clinicians to recognize the potential risks of CVST and prioritize rigorous monitoring and research to ensure patient safety.
5.Global Burden of Vaccine-Associated Cerebrovascular Venous Sinus Thrombosis, 1968–2024: A Critical Analysis From the WHO Global Pharmacovigilance Database
Jaehyeong CHO ; Hyesu JO ; Hyunjee KIM ; Jaeyu PARK ; Damiano PIZZOL ; Min Seo KIM ; Ho Geol WOO ; Dong Keon YON
Journal of Korean Medical Science 2025;40(11):e101-
Despite widespread coronavirus disease 2019 (COVID-19) vaccine use, research on the association between vaccines and cerebrovascular venous sinus thrombosis (CVST) in diverse populations is limited. This study aimed to address this gap. Data from the World Health Organization pharmacovigilance database (1968–2024; total reports = 8,909,484) were used.Reporting odds ratios (RORs) and information components (ICs) were calculated to assess the association between each drug and CVST. In total, 851 cases were identified as vaccineassociated CVST, of which 527 (61.93%) occurred in female patients. Only Ad5-vectored COVID-19 vaccines had the highest ROR and IC value with CVST (ROR, 4.78; 95% confidence interval, 4.34–5.28; IC, 2.15). The risk of CVST increased with age, with the 45–64-years age group having an IC of 1.35, while the 65 years and older group had a higher IC of 2.08.The findings highlight the need for clinicians to recognize the potential risks of CVST and prioritize rigorous monitoring and research to ensure patient safety.
6.Global Burden of Vaccine-Associated Cerebrovascular Venous Sinus Thrombosis, 1968–2024: A Critical Analysis From the WHO Global Pharmacovigilance Database
Jaehyeong CHO ; Hyesu JO ; Hyunjee KIM ; Jaeyu PARK ; Damiano PIZZOL ; Min Seo KIM ; Ho Geol WOO ; Dong Keon YON
Journal of Korean Medical Science 2025;40(11):e101-
Despite widespread coronavirus disease 2019 (COVID-19) vaccine use, research on the association between vaccines and cerebrovascular venous sinus thrombosis (CVST) in diverse populations is limited. This study aimed to address this gap. Data from the World Health Organization pharmacovigilance database (1968–2024; total reports = 8,909,484) were used.Reporting odds ratios (RORs) and information components (ICs) were calculated to assess the association between each drug and CVST. In total, 851 cases were identified as vaccineassociated CVST, of which 527 (61.93%) occurred in female patients. Only Ad5-vectored COVID-19 vaccines had the highest ROR and IC value with CVST (ROR, 4.78; 95% confidence interval, 4.34–5.28; IC, 2.15). The risk of CVST increased with age, with the 45–64-years age group having an IC of 1.35, while the 65 years and older group had a higher IC of 2.08.The findings highlight the need for clinicians to recognize the potential risks of CVST and prioritize rigorous monitoring and research to ensure patient safety.
7.Global Burden of Vaccine-Associated Cerebrovascular Venous Sinus Thrombosis, 1968–2024: A Critical Analysis From the WHO Global Pharmacovigilance Database
Jaehyeong CHO ; Hyesu JO ; Hyunjee KIM ; Jaeyu PARK ; Damiano PIZZOL ; Min Seo KIM ; Ho Geol WOO ; Dong Keon YON
Journal of Korean Medical Science 2025;40(11):e101-
Despite widespread coronavirus disease 2019 (COVID-19) vaccine use, research on the association between vaccines and cerebrovascular venous sinus thrombosis (CVST) in diverse populations is limited. This study aimed to address this gap. Data from the World Health Organization pharmacovigilance database (1968–2024; total reports = 8,909,484) were used.Reporting odds ratios (RORs) and information components (ICs) were calculated to assess the association between each drug and CVST. In total, 851 cases were identified as vaccineassociated CVST, of which 527 (61.93%) occurred in female patients. Only Ad5-vectored COVID-19 vaccines had the highest ROR and IC value with CVST (ROR, 4.78; 95% confidence interval, 4.34–5.28; IC, 2.15). The risk of CVST increased with age, with the 45–64-years age group having an IC of 1.35, while the 65 years and older group had a higher IC of 2.08.The findings highlight the need for clinicians to recognize the potential risks of CVST and prioritize rigorous monitoring and research to ensure patient safety.
8.The Effect of the Anatomical Changes in Nasal Cavity and Nasopharynx on the Pressure of Paranasal Sinuses and Ventilation of Maxillary Sinus in Model Experiment.
Ki Sik KIM ; Lee Suk KIM ; Myung Koo KANG ; Dong Young KIM ; Dong Keon JUNG ; O Sung KWON ; Jae Bum SEO
Korean Journal of Otolaryngology - Head and Neck Surgery 2004;47(4):316-322
BACKGROUND AND OBJECTIVES: Anatomical alterations of sinonasal cavity produced by various sinonasal diseases and surgeries can cause too much or too little sinus ventilation, which may develop pathology in the sinus. We studied the effect of the anatomical changes in nasal cavity and nasopharynx on the pressure of paranasal sinuses and ventilation of maxillary sinus in model experiment. MATERIALS AND METHOD: Anatomically accurate laboratory sinonasal model was constructed from computerized axial tomography scans of a healthy male. The pressure changes in the paranasal sinuses and oxygen washout from the maxillary sinus were investigated during controlled respiration by volunteer via corrugated tube connected to the nasopharynx of the normal model. The same procedures were performed in the adenoid hypertrophy and ethmoidectomized models. RESULTS: Adenoid hypertrophy caused an increase in maxillary antral pressure amplitude (the difference between peak positive and negative pressure), but showed a decrease in ventilation. In the ethmoidectomized model, ethmoidectomy improved maxillary sinus ventilation with slight decrease in the antral pressure amplitude, and widening of the ostium significantly increased ventilation, whereas near total middle turbinectomy impaired ventilation. CONCLUSION: The results obtained with the present model experiment may be of use for the understanding of the relations between anatomical change in the sinonasal cavity and sinus ventilation.
Adenoids
;
Humans
;
Hypertrophy
;
Male
;
Maxillary Sinus*
;
Nasal Cavity*
;
Nasopharynx*
;
Oxygen
;
Paranasal Sinuses*
;
Pathology
;
Respiration
;
Ventilation*
;
Volunteers
9.Thoracic Spinal Cord Stimulation and Radiofrequency Thermocoagulation of Lumbar Sympathetic Ganglion in a Patient with Complex Regional Pain Syndrome in the Lower Extremity: A case report.
Shi Hyeon KIM ; Dong Eon MOON ; Chong Min PARK ; Keon Hee RYU ; Kyung Soo SEO ; Sie Hyun YOU
The Korean Journal of Pain 2005;18(2):240-245
Herein is described the successful treatment of complex regional pain syndrome type II with the combination treatment of spinal cord stimulation and radiofrequency thermocoagulation of the lumbar sympathetic ganglion. A 62 years old male patient, suffering from CRPS type II in his left lower extremity, visited our pain clinic. Medication and nerve blockade produced only slight improvement in his symptoms and signs. Therefore, a linear type spinal cord simulator was inserted into the thoracic epidural space, using a non-surgical percutaneous approach, with the cephalad lead located at the T11 level. Two months later, the repositioning of the electrode to the T12 level for more effective pain control, with radiofrequency thermocoagulation of lumbar sympathetic ganglion also performed at the left L2 and 3 levels for the control of trophic change. These resulted in significant pain relief and decreased trophic change, with no complications, after which the patient was able to resume a normal life.
Causalgia
;
Electrocoagulation*
;
Electrodes
;
Epidural Space
;
Ganglia, Sympathetic*
;
Humans
;
Lower Extremity*
;
Male
;
Middle Aged
;
Nerve Block
;
Pain Clinics
;
Spinal Cord Stimulation*
;
Spinal Cord*
10.Anomalous Origin of Left Coronary Artery from Pulmonary Artery:Report of an Adult Case.
Tae Seo SHON ; Keon Woong MOON ; Ki Dong YOO ; Ho Joong YOUN ; Soon Chan SO ; Kyeong Kun KWAK ; Hae Kyu PARK ; Wook Sung CHUNG ; Sang Kook HAN ; Soon Jo HONG
Korean Circulation Journal 1999;29(5):528-531
Anomalous origin of left coronary artery from pulmonary artery (ALCAPA) is a rare congenital cardiovascular anomaly. The mortality rate among infants and children without operation has been eighty to ninety-five percents and few patients survive till teen-age or adulthood. This anomaly was detected during elective coronary angiogram in a 32 year-old female patient with atypical chest pain. Reversible ischemia was demonstrated on myocardial 201Tl-SPECT. Coronary angiogram revealed anomalous origin of left coronary artery from pulmonary artery.
Adult*
;
Bland White Garland Syndrome
;
Chest Pain
;
Child
;
Coronary Vessels*
;
Female
;
Humans
;
Infant
;
Ischemia
;
Mortality
;
Pulmonary Artery