1.DNA Profiling via Short Tandem Repeat Analysis by Using Serum Samples.
Ji Hyun LEE ; Hye Young LEE ; Sohee CHO ; Joo Youn CHO ; In Jin JANG ; Soong Deok LEE
Korean Journal of Legal Medicine 2013;37(4):220-223
Serum is free of cellular components. Because DNA is located in the nuclei or mitochondria of cells, serum could be assumed DNA free. Few previously published case reports to date have used serum for DNA typing. Here, we report on human genotyping via short tandem repeat (STR) analysis using serum as a sample, and discuss problems involved in the process.
DNA Fingerprinting*
;
DNA*
;
Humans
;
Microsatellite Repeats*
;
Mitochondria
2.Social Distancing and Transmission-reducing Practices during the 2019 Coronavirus Disease and 2015 Middle East Respiratory Syndrome Coronavirus Outbreaks in Korea
Won Mo JANG ; Deok Hyun JANG ; Jin Yong LEE
Journal of Korean Medical Science 2020;35(23):e220-
Background:
The absence of effective antiviral medications and vaccines increased the focus on non-pharmaceutical preventive behaviors for mitigating against the coronavirus disease 2019 (COVID-19) pandemic. To examine the current status of non-pharmaceutical preventive behaviors practiced during the COVID-19 outbreak and factors affecting behavioral activities, we compared to the 2015 Middle East respiratory syndrome coronavirus (MERS-CoV) outbreak in Korea.
Methods:
This was a serial cross-sectional population-based study in Korea with four surveys conducted on June 2 and 25, 2015 (MERS-CoV surveys), and February 4, and April 2, 2020 (COVID-19 surveys). Of 25,711 participants selected using random digit dialing numbers, 4,011 participants (aged ≥ 18 years) were successfully interviewed, for the 2020 COVID-19 (n = 2,002) and 2015 MERS-CoV (n = 2,009) epidemics were included. Participants were selected post-stratification by sex, age, and province. The total number of weighted cases in this survey equaled the total number of unweighted cases at the national level. We measured the levels of preventive behaviors (social distancing [avoiding physical contact with others]), and practicing transmission-reducing behaviors such as wearing face mask and handwashing.
Results:
Between the surveys, respondents who reported practicing social distancing increased from 41.9%–58.2% (MERS-CoV) to 83.4%–92.3% (COVID-19). The response rate for the four surveys ranged between 13.7% and 17.7%. Practicing transmission-reducing behaviors (wearing face masks and handwashing) at least once during COVID-19 (78.8%, 80.2%) also increased compared to that during MERS-CoV (15.5%, 60.3%). The higher affective risk perception groups were more likely to practice transmission-reducing measures (adjusted odds ratio, 3.24–4.81; 95 confidence interval, 1.76–6.96) during both COVID-19 and MERS-CoV.
Conclusion
The study findings suggest markedly increased proportions of non-pharmaceutical behavioral practices evenly across all subgroups during the two different novel virus outbreaks in Korea. Strategic interventions are needed to attempt based on preventive behavior works.
3.Anesthetie Management for the Reconstructive Surgery of Renovascular Hypertension .
Hyun Chul SONG ; Ho Jo JANG ; Moung Sik YOO ; Seong Deok KIM
Korean Journal of Anesthesiology 1982;15(3):375-380
It is very important for the anesthesiologists to manage this kind of patient during anesthesia because of severe hemodynamic change that is induced by aortic clamping and declamping, and its secondary effect on visce, heart and spinal cord, etc. To minimize the sudden severe hemodynamic change, we used the following agents and techniques in this clinical report. 1) Ethrane anesthesia with intermittent Innovar administration to minimize cardiac irritability. 2) To prevent secondary damage by distal hypotension during aortic clamping and declamping. 1. slight overhydration. 2. mannitol. 3. diuretics. 3) To prevent secondary damage by proximal hypertension during aortic clamping. 1. d-tubocurarine for muscle relaxation. 2. Morphine. 3. Chlorpromazine. 4. phentolamine. More over, we recommend this kind of anesthetic method in some other surgeries such as coarctation of aorta, aortic aneuryam and pheochromocytoma, etc. which may exhibit severe hemodynamic change during anesthesia.
Anesthesia
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Aortic Coarctation
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Chlorpromazine
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Constriction
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Diuretics
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Enflurane
;
Heart
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Hemodynamics
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Humans
;
Hypertension
;
Hypertension, Renovascular*
;
Hypotension
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Mannitol
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Morphine
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Muscle Relaxation
;
Phentolamine
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Pheochromocytoma
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Spinal Cord
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Tubocurarine
5.Comparative pharmacokinetics between two tablets of tramadol 37.5 mg/acetaminophen 325 mg and one tablet of tramadol 75 mg/acetaminophen 650 mg for extended-release fixed-dose combination
Hyun Chul KIM ; Deok Yong YOON ; SeungHwan LEE ; In-Jin JANG ; Jang Hee HONG ; JaeWoo KIM
Translational and Clinical Pharmacology 2022;30(2):112-119
An extended-release (ER) fixed-dose combination (FDC) of tramadol 37.5 mg/acetaminophen 325 mg was developed due to the demand for varying dosages. This study aimed to evaluate the pharmacokinetics (PKs) for two tablets of the new developed tramadol 37.5 mg/acetaminophen 325 mg ER FDC (DW-0920, Wontran Semi ER®) as test formulation compared to one tablet of the tramadol 75 mg/acetaminophen 650 mg ER FDC (DW-0919, Wontran ER®) as reference formulation. A randomized, open-label, 2-way crossover study was conducted in 30 healthy subjects. Subjects were orally administered one of 2 formulations followed by an alternate formulation with a 7-day washout period. Blood samples were collected up to 36 hours post-dose. Plasma concentrations of tramadol and acetaminophen were determined using a validated high-performance liquid chromatography with tandem mass spectrometric method. The geometric mean ratios (GMRs) and their 90% confidence intervals (90% CIs) of test formulation to reference formulation were calculated for the maximum plasma concentration (Cmax) and the area under the plasma concentration-time curve from zero to the last measurable time point (AUClast). The PK profiles of 2 formulations were comparable. The GMRs (90% CI) of Cmax and AUClast for tramadol were 1.086 (1.047–1.127) and 1.008 (0.975–1.042), respectively. The corresponding values for acetaminophen were 0.956 (0.897–1.019) and 0.986 (0.961–1.011), respectively. All the values were within the bioequivalence range of 0.80–1.25. Two tablets of DW-0920 were comparable to one tablet of DW-0919. The DW-0920 may be used for optimal pharmacotherapy for pain control with a lower dose.
6.Epidemiological and Survival Trends of Pediatric Cardiac Arrests in Emergency Departments in Korea: A Cross-sectional, Nationwide Report.
Jae Yun AHN ; Mi Jin LEE ; Hyun KIM ; Han Deok YOON ; Hye Young JANG
Journal of Korean Medical Science 2015;30(9):1354-1360
Cardiac arrest (CA) in children is associated with high mortality rates. In Korea, cohort studies regarding the outcomes of pediatric CAs are lacking, especially in emergency departments (EDs) or in-hospital settings. This study was conducted to examine the trends in epidemiology and survival outcomes in children with resuscitation-attempted CAs using data from a cross-sectional, national, ED-based clinical registry. We extracted cases in which cardiopulmonary resuscitation and/or manual defibrillation were performed according to treatment codes using the National Emergency Department Information System (NEDIS) from 2008 to 2012. The total number of ED visits registered in the NEDIS during the 5-yr evaluation period was 20,424,530; among these, there were 2,970 resuscitation-attempted CAs in children. The annual rates of pediatric CAs per 1,000 ED visits showed an upward trend from 2.81 in 2009 to 3.62 in 2012 (P for trend = 0.045). The median number of estimated pediatric CAs at each ED was 7.8 (25th to 75th percentile, 4 to 13) per year. The overall rates for admission survival and discharge survival were 35.2% and 12.8%, respectively. The survival outcome of adults increased substantially over the past 5 yr (11.8% in 2008, 11.7% in 2010, and 13.6% in 2012; P for trend = 0.001); however, the results for children did not improve (13.6% in 2008, 11.4% in 2010, and 13.7% in 2012; P for trend = 0.870). Conclusively, we found that the overall incidence of pediatric CAs in EDs increased substantially over the past 5 yr, but without significantly higher survival outcomes.
Adolescent
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Cardiopulmonary Resuscitation/*mortality
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Child
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Child, Preschool
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Cross-Sectional Studies
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Emergency Service, Hospital/*statistics & numerical data
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Female
;
Heart Arrest/*epidemiology/*prevention & control
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*Hospital Mortality
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Humans
;
Incidence
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Infant
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Male
;
*Registries
;
Republic of Korea/epidemiology
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Risk Factors
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Survival Rate
;
Treatment Outcome
;
Young Adult
7.Giant fusiform aneurysm at the basilar trunk treated with endovascular coil occlusion following bypass surgery for the flow diversion.
Ku Hyun YANG ; Byung Duk KWUN ; Jae Sung AHN ; In Seok JANG ; Deok Hee LEE
Korean Journal of Cerebrovascular Surgery 2008;10(3):459-464
Giant fusiform aneurysms at the basilar trunk tend to have a poor natural history and surgical management for these aneurysms remains controversial. For these aneurysms, basilar trunk occlusion with endovascular coiling is difficult when the collateral supply from the carotid circulation is relatively poor. Interestingly, we herein present a successfully treated case of a partially thrombosed giant fusiform aneurysm at the basilar trunk with relatively poor collateral supply using endovascular coil occlusion following bypass surgery (superficial temporal artery-radial artery-superior cerebellar artery anastomosis).
Aneurysm
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Arteries
;
Natural History
8.Evaluation of Blood Culture System for Culture of Body Fluids.
Soon Deok PARK ; Young UH ; In Ho JANG ; Maria HONG ; Hyeun Gyeo LEE ; Kwan Soo LEE ; Dong Hyun LEE
Journal of Laboratory Medicine and Quality Assurance 2015;37(1):23-28
BACKGROUND: Invasive and life-threatening infections such as meningitis, pericarditis, peritonitis, empyema, and septic arthritis are diagnosed via culture of relevant body fluids (BFs). The blood culture system (BCS) has been reported to be a useful alternative for BFs culture to enhance recovery of fastidious microorganisms and reduce detection time. The aim of this study was to evaluate the diagnostic performance of BCS as compared to conventional culture method (CCM) in terms of culture yield. METHODS: The samples collected between October 2011 and September 2012 were processed using CCM, while those collected between October 2012 and September 2013 were processed using BCS. The 2 processes were compared in terms of total number of requests, recovery rate, turnaround time (TAT), and detection time. RESULTS: The positive rate using CCM was 18.2% (575/3,151), where 845 isolates were recovered from 575 specimens. Using BCS, the positive rate was 28.3% (922/3,260), where 1,472 isolates were recovered from 922 specimens. While comparing the 2 methods on terms of yield of clinically significant isolates, a greater number of fungi (1.2%) and anaerobic bacteria (1.4%) were recovered using BCS as compared to using CCM. The difference in TAT for positive samples was 24 hours and 40 minutes, where BCS had a shorter TAT than CCM. The mean detection time of 951 positive samples by BCS was 19 hours and 56 minutes. Growth of clinically significant isolates was detected within 24 hours. CONCLUSIONS: BCS for culture of BFs showed an improvement in recovery rate, number of isolates, and TAT as compared to CCM. Thus, BCS is a suitable alternative for culture of BFs.
Arthritis, Infectious
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Bacteria, Anaerobic
;
Body Fluids*
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Empyema
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Fungi
;
Meningitis
;
Pericarditis
;
Peritonitis
9.The Effects of Air Bubble on Damping of Arterial Pressure Waves during Monitoring of Mean Arterial Pressure Waves during Monitoring of Mean Arterial Pressure .
Hyun Chul SONG ; Ho Jo JANG ; Duk Hwan CHOI ; Young Chun WON ; Seong Deok KIM ; Kwang Woo KIM ; Hee Chan KIM ; Byoung Goo MIN
Korean Journal of Anesthesiology 1982;15(4):464-471
By virtus of the development of monitoring system and increasing tendency of critically ill patients. We have performed cannulation of radial artery after Allen's test for the continuous monitoring of arterial pressure. It is very important to measure blood pressure, it gives un many informations in the poor risk patients. During monitoring of blood pressure for several years, we have had much troubles because of damping of arteiral pressure waved due to air bubbles. In this study, we used P25Db pressure tranducer and Spaculab Alpha System for monitering of blood pressure, following cannulation of radial artery. Air bubbles of 0.5ml, 1.0ml, 1.5ml and 2.0ml were inserted into monitering system, i.e. fluid filled catheter respectively. The statistical analysis by paired student T-test showed following results. 1) Systolic blood pressure were decreased significantly from 140+/-14.4 torr of control group to 105+/-15.9 torr, 102 +/-16.1 torr, 99+/-16.2 torr and 99+/-15.2 torr in 0.5ml, 1.0ml, 1.5ml and 2.0 ml air groups respectively. 2) Diastolic blood pressure were increased from 70+/-12.4 torr of control group to 72+/-13.8 torr, 76+/-13.9 torr, 78+/-14.3 torr and 81 +/-13.1 torr in each cases respectively. 3) Pulse pressure were decreased from 40+/-13.3 torr of control group to 33+/-15.4 torr, 26 +/-13.6 torr, 22+/-13.0 torr and 18+/-12.0 torr in each cases respectively. 4) But mean arterial pressure showed no significant changes except in 2.0ml air group. Where showed slight change.
10.Magnetic Resonance Imaging as a Determinant for Surgical Release of Congenital Muscular Torticollis: Correlation with the Histopathologic Findings.
Jee Hyun HWANG ; Han Byul LEE ; Jang Hee KIM ; Myong Chul PARK ; Kyu Sung KWACK ; Jae Deok HAN ; Shin Young YIM
Annals of Rehabilitation Medicine 2012;36(3):320-327
OBJECTIVE: (1) To present the magnetic resonance imaging (MRI) findings of congenital muscular torticollis (CMT) of subjects who underwent surgical release and subjects who showed a good prognosis with stretching exercises and (2) to correlate the MRI findings with the histopathologic findings of CMT for subjects who underwent surgical release in order to examine the hypothesis that the MRI findings of CMT can be used as a determinant to perform surgical release of CMT. METHOD: The neck MRI findings of 33 subjects who underwent surgical release for CMT were compared with those of 18 subjects who were successfully managed only with conservative management. The MRI findings were correlated with the histopathologic sections of the CMT mass. RESULTS: All 33 subjects (100%) who underwent surgical release showed one or more low signal intensities within the involved sternocleidomastoid muscle (SCM) on the T1- and T2-weighted images of neck MRI. The eighteen non-surgical candidates showed only enlargement of the SCM without low signal intensity within the SCM. The histopathologic findings showed interstitial fibrosis and/or the presence of aberrant tendon-like excessive dense connective tissue that was either well-arranged or disorganized. CONCLUSION: The histopathologic findings and MRI findings showed good correlation in terms of the amount of fibrosis and aberrant dense connective tissue within the SCM. If multiple or large low signal intensities within the SCM are noted, we think that surgical release should be considered.
Connective Tissue
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Exercise
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Fibrosis
;
Magnetic Resonance Imaging
;
Magnetic Resonance Spectroscopy
;
Magnetics
;
Magnets
;
Muscles
;
Neck
;
Prognosis
;
Torticollis