1.Upper limb salvage using free forearm flap harvested from the non-replantable amputation part: cases report.
Woo Young JANG ; Rong Min BAEK ; Soo Shin KIM ; Se Min BAEK
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1991;18(6):1148-1152
No abstract available.
Amputation*
;
Forearm*
;
Upper Extremity*
2.Reconstruction of soft tissue defect of the hand and foot by temporo: parietal fascia free flap.
Sung Gyu PARK ; Seung Soo HAN ; Rong Min BAEK ; Young Duk JUNG ; Soo Shin KIM ; Se Min BAEK
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1992;19(1):123-128
No abstract available.
Fascia*
;
Foot*
;
Free Tissue Flaps*
;
Hand*
;
Rabeprazole*
3.Reconstruction of adduction contracture of the thimbs by intermetacarpal arthrodesis and lateral arm free flap.
Sung Gyu PARK ; Heung Soo HAN ; Rong Min BAEK ; Young Duk CHUNG ; Soo Shin KIM ; Se Min BAEK
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1992;19(1):118-122
No abstract available.
Arm*
;
Arthrodesis*
;
Contracture*
;
Free Tissue Flaps*
4.Treatment of the lymphedema using microlymphaticovenous anastomoses: two cases.
Young Joon LEE ; Jeong Il PARK ; Heung Soo HAN ; Soo Shin KIM ; Se Min BAEK
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1992;19(6):1041-1048
No abstract available.
Lymphedema*
5.A Case of Spinal Cord Astrocytoma Associated with Hemorrhage.
Hyung Chun PARK ; Hye Young CHOI ; Kyu Man SHIN ; Seoung Yon BAEK ; Sun Wha LEE
Journal of the Korean Radiological Society 1994;31(3):411-414
Magnetic Resonance image(MRI) is used as the diagnostic modality for evaluation of suspected intramedullary tumors and differential diagnosis of these tumors at the spinal cord. We experienced intramedullary astrocytoma of cerviced cord with large syrinx and multiple peritumoral cysts consisted of subacute and chronic hemorrhage at the margin and within the syrinx and cysts on MRI.
Astrocytoma*
;
Diagnosis, Differential
;
Hemorrhage*
;
Magnetic Resonance Imaging
;
Spinal Cord*
6.The effect of different curing modes on composite resin/dentin bond strength in class icavities.
Shin Young BAEK ; Young Gon CHO ; Byeong Choon SONG
Journal of Korean Academy of Conservative Dentistry 2008;33(5):428-434
The purpose of this study was to compare the microtensile bond strength in Class I cavities associated with different light curing modes of same light energy density. Occlusal enamel was removed to expose a flat dentin surface and twenty box-shaped Class I cavities were prepared in dentin. Single Bond (3M Dental product) was applied and Z 250 was inserted using bulk technique. The composite was light-cured using one of four techniques; pulse delay (PD group), soft-start (SS group), pulse cure (PC group) and standard continuous cure (CC group). The light-curing unit capable of adjusting time and intensity (VIP, Bisco Dental product) was selected and the light energy density for all curing modes was fixed at 16 J/cm2. After storage for 24 hours, specimens were sectioned into beams with a rectangular cross-sectional area of approximately 1 mm2. Microtensile bond strength (microTBS) test was performed using a universal testing machine (EZ Test, Shimadzu Co.). The results were analyzed using oneway ANOVA and Tukey's test at significance level 0.05. The microTBS of PD group and SS group was higher than that of PC group and CC group. Within the limitations of this in vitro study, modification of curing modes such as pulse delay and soft start polymerization can improve resin/dentin bond strength in Class I cavities by controlling polymerization velocity of composite resin.
Bisphenol A-Glycidyl Methacrylate
;
Collodion
;
Dental Enamel
;
Dentin
;
Light
;
Polymerization
;
Polymers
7.Immunochemical Study on the Changes of Carbonic anhydrase-II and Iron-binding Proteins in the Demyelinationand and Remyelination model Mouse induced with Cuprizone.
Gyung Hoon LEE ; Hwa Young LEE ; Young Bok YOO ; Dong Hoon SHIN ; Sang Ho BAEK ; Sa Sun JO
Korean Journal of Anatomy 1997;30(6):683-694
O1igodendrocytes are known to be responsible for the synthesis and maintenance of myelin sheath in the central nervous system, and their functional disturbance leads to defect in myelination. But, the fine mechanism of myelination by oligodendrocytes is not yet known, and iron metabolism in central nervous system is suspected to be related with myelination process by oligodendrocytes. Carbonic anhydrase-II[CA-II], transfe-rrin, and ferritin are known to be present at oligodendrocytes and suspected to play a role in iron metabolism of central nervous system. In this study, demyelination and remyelination of ICR mouse brains were induced using cuprizone, the copper-chelating agent, and immunohistochemical changes of CA-II-, transferrin-, and ferritin-immunoreactive oligodendrocytes at corpus callosum were observed. During demyelination by cuprizone feeding, the numbers of CA-II- and transferrin-immunoreactive oligodendrocytes were decreased. Especially, the decrease ratio of CA-II-positive cells was great. In contrast, the number of ferritin-positive oligodendrocytes was increased during demyelination by cuprizone feeding. Cessation of cuprizone feeding leaded remyelination and the numbers of CA-II-, transferrin-, and ferritin-immunoreactive oligodendrocytes were returned to normal level. In conclusion, the derangement of iron metabolism in oligodendrocytes may be related to demyelination mechanism of central nervous system, and the CA-II is suspected to have an important role in iron metabolism of oligodenrocytes in relation to demyelination and remyelination induced with cuprizone.
Animals
;
Brain
;
Carbon*
;
Central Nervous System
;
Corpus Callosum
;
Cuprizone*
;
Demyelinating Diseases
;
Ferritins
;
Iron
;
Iron-Binding Proteins*
;
Metabolism
;
Mice*
;
Mice, Inbred ICR
;
Myelin Sheath
;
Oligodendroglia
;
Transferrin
8.Clinical outcomes of COVID-19 following the use of angiotensin-converting enzyme inhibitors or angiotensin-receptor blockers among patients with hypertension in Korea: a nationwide study
Ju Hwan KIM ; Yeon-Hee BAEK ; Hyesung LEE ; Young June CHOE ; Hyun Joon SHIN ; Ju-Young SHIN
Epidemiology and Health 2021;43(1):e2021004-
OBJECTIVES:
Recent evidence has shown no harm associated with the use of angiotensin-converting enzyme inhibitors (ACEIs) or angiotensin-receptor blockers (ARBs) in patients with coronavirus disease 2019 (COVID-19). We sought to further clarify the possible association between ACEI/ARB use and the risk of poor clinical outcomes of COVID-19.
METHODS:
From the completely enumerated COVID-19 cohort in Korea, we identified 1,290 patients with hypertension, of whom 682 had and 603 did not have records of ACEI/ARB use during the 30-day period before their COVID-19 diagnosis. Our primary endpoint comprised clinical outcomes, including all-cause mortality, use of mechanical ventilation, intensive care unit admission, and sepsis. We used inverse probability of treatment weighting (IPTW) to mitigate selection bias, and a Poisson regression model to estimate the relative risks (RRs) and 95% confidence intervals (CIs) for comparing outcomes between ACEI/ARB users and non-users.
RESULTS:
Compared to non-use, ACEI/ARB use was associated with lower clinical outcomes (IPTW-adjusted RR, 0.60; 95% CI, 0.42 to 0.85; p=0.005). For individual outcomes, ACEI/ARB use was not associated with all-cause mortality (IPTW-adjusted RR, 0.62; 95% CI, 0.35 to 1.09; p=0.097) or respiratory events (IPTW-adjusted RR, 0.99; 95% CI, 0.84 to 1.17; p=0.904). Subgroup analysis showed a trend toward a protective role of ACEIs and ARBs against overall outcomes in men (IPTW-adjusted RR, 0.84; 95% CI, 0.69 to 1.03; pinteraction=0.008) and patients with pre-existing respiratory disease (IPTW-adjusted RR, 0.74; 95% CI, 0.60 to 0.92; pinteraction=0.002).
CONCLUSIONS
We present clinical evidence to support continuing ACE/ARB use in COVID-19 patients with hypertension based on the completely enumerated Korean cohort.
9.Clinical outcomes of COVID-19 following the use of angiotensin-converting enzyme inhibitors or angiotensin-receptor blockers among patients with hypertension in Korea: a nationwide study
Ju Hwan KIM ; Yeon-Hee BAEK ; Hyesung LEE ; Young June CHOE ; Hyun Joon SHIN ; Ju-Young SHIN
Epidemiology and Health 2021;43(1):e2021004-
OBJECTIVES:
Recent evidence has shown no harm associated with the use of angiotensin-converting enzyme inhibitors (ACEIs) or angiotensin-receptor blockers (ARBs) in patients with coronavirus disease 2019 (COVID-19). We sought to further clarify the possible association between ACEI/ARB use and the risk of poor clinical outcomes of COVID-19.
METHODS:
From the completely enumerated COVID-19 cohort in Korea, we identified 1,290 patients with hypertension, of whom 682 had and 603 did not have records of ACEI/ARB use during the 30-day period before their COVID-19 diagnosis. Our primary endpoint comprised clinical outcomes, including all-cause mortality, use of mechanical ventilation, intensive care unit admission, and sepsis. We used inverse probability of treatment weighting (IPTW) to mitigate selection bias, and a Poisson regression model to estimate the relative risks (RRs) and 95% confidence intervals (CIs) for comparing outcomes between ACEI/ARB users and non-users.
RESULTS:
Compared to non-use, ACEI/ARB use was associated with lower clinical outcomes (IPTW-adjusted RR, 0.60; 95% CI, 0.42 to 0.85; p=0.005). For individual outcomes, ACEI/ARB use was not associated with all-cause mortality (IPTW-adjusted RR, 0.62; 95% CI, 0.35 to 1.09; p=0.097) or respiratory events (IPTW-adjusted RR, 0.99; 95% CI, 0.84 to 1.17; p=0.904). Subgroup analysis showed a trend toward a protective role of ACEIs and ARBs against overall outcomes in men (IPTW-adjusted RR, 0.84; 95% CI, 0.69 to 1.03; pinteraction=0.008) and patients with pre-existing respiratory disease (IPTW-adjusted RR, 0.74; 95% CI, 0.60 to 0.92; pinteraction=0.002).
CONCLUSIONS
We present clinical evidence to support continuing ACE/ARB use in COVID-19 patients with hypertension based on the completely enumerated Korean cohort.
10.The Causes and Symptoms of Chest Pain among Young Policemen.
Young Kyo CHOI ; Sung Mo BAEK ; Yong In SON ; Dong Hoon SHIN
Journal of the Korean Academy of Family Medicine 2002;23(11):1369-1376
BACKGROUND: Chest pain is a problem that primary care physicians commonly face and often unnecessary work-up is done because of its clinical importance of cardiac origin. There are various studies on the causative disorders of chest pain, but studies on young adult males are relatively few. Therefore, we conducted this study on the cause of chest pain among young policemen. METHODS: Diagnosis and classification of chest pain were made among 106 policemen who visited the outpatient department of family medicine at the National Police Hospital from March 1, 2002 to June 30, 2002. RESULTS: The causes of chest pain were musculoskeletal (55%), psychogenic (17%), others (15%), gastrointestinal (7%) and respiratory (6%), but none of them were cardiovascular origin. The nature of chest pain were stabbing (41%), sharp (22%), pressing (18%), squeezing (16%) and substernal discomfort (3%). The duration of chest pain were below 10 minutes (37%), 10 minutes to 1 hour (15%), several hours (20%) and several days (28%). The location of chest pain were left chest (61%), right chest (18%), precordial (7%), epigastric (6%), substernal (4%) and others (4%). The frequencies of chest pain were more than once a day (23%), once a week (26%), once a month (11%), once more than 1 month interval (17%) and first attack (23%). The aggravating factors of chest pain were physical strain (25%), coughing (22%), psychologic stress (16%), smoking (10%), weather change (8%), drinking (7%), resting (5%), and overeating (6%). CONCLUSION: Our study showed that unnecessary tests should be avoided and adequate treatment matched to their causes through exact and detailed history taking should be done, because the causes of chest pain among young policemen are mostly non-cardiovascular origin.
Chest Pain*
;
Classification
;
Cough
;
Diagnosis
;
Drinking
;
Humans
;
Hyperphagia
;
Male
;
Musculoskeletal Diseases
;
Outpatients
;
Physicians, Primary Care
;
Police
;
Smoke
;
Smoking
;
Stress, Psychological
;
Thorax*
;
Weather
;
Young Adult