1.Use of Artificial Intelligence-Based Software as Medical Devices for Chest Radiography: A Position Paper from the Korean Society of Thoracic Radiology
Eui Jin EUI JIN ; Jin Mo GOO ; Soon Ho YOON ; Kyongmin Sarah BECK ; Joon Beom SEO ; Byoung Wook CHOI ; Myung Jin CHUNG ; Chang Min PARK ; Kwang Nam JIN ; Sang Min LEE
Korean Journal of Radiology 2021;22(11):1743-1748
2.Secondary Erythromelalgia: A Case Report.
Byoung Chan KANG ; Da Jeong NAM ; Eun Kyoung AHN ; Duck Mi YOON ; Joung Goo CHO
The Korean Journal of Pain 2013;26(3):299-302
Erythromelalgia is a rare neurovascular pain syndrome characterized by a triad of redness, increased temperature, and burning pain primarily in the extremities. Erythromelalgia can present as a primary or secondary form, and secondary erythromelalgia associated with a myeloproliferative disease such as essential thrombocythemia often responds dramatically to aspirin therapy, as in the present case. Herein, we describe a typical case of a 48-year-old woman with secondary erythromelalgia linked to essential thrombocythemia in the unilateral hand. As this case demonstrates, detecting and visualizing the hyperthermal area through infrared thermography of an erythromelalgic patient can assist in diagnosing the patient, assessing the therapeutic results, and understanding the disease course of erythromelalgia.
Aspirin
;
Burns
;
Erythromelalgia
;
Extremities
;
Female
;
Hand
;
Humans
;
Neuralgia
;
Thermography
;
Thrombocythemia, Essential
3.The Predictability of QT Dispersion for Myocardial Injury and Coronary Artery Lesion in Patients with Acute Myocardial Infarction.
Jum Suk KO ; So Young JOO ; Myung Ho JEONG ; Young JooN HONG ; Eun Hui BAE ; Min Goo LEE ; Nam Sik YOON ; Ju Han KIM ; Weon KIM ; Young Keun AHN ; Jeong Gwan CHO ; Soon Pal SUH ; Jong Chun PARK ; Byoung Hee AHN ; Sang Hyung KIM ; Jung Chaee KANG
Korean Circulation Journal 2004;34(12):1194-1201
BACKGROUND AND OBJECTIVES: Increased QT dispersion (QTD) in patients with acute myocardial infarction (AMI) may be related with such adverse events as sudden cardiac death and ischemic heart failure. SUBJECTS AND METHODS: Two hundred eight patients (age : 62+/-10.4 years, 158 males), underwent diagnostic coronary angiography under the diagnosis of AMI between January and December 2001 at the Heart Center of Chonnam National University Hospital, and these patients were enrolled to evaluate the relationship between the QTD and myocardial injury and the complex coronary arterial lesion. RESULTS: A QTD of over 80 ms was observed in 89 patients (42.7%). There were in 61 patients with ST elevation myocardial infarction (STEMI, 68.5%) and 28 patients with non-ST elevation myocardial infarction (NSTEMI, 31.5%). There was no correlation between the QTD and such risk factors as hypertension, diabetes, gender, smoking, hyperlipidemia and family history. The level of CK-MB on admission was correlated with the QTD (112.5+/-98.1 U/L in the group with a QTD over 80 ms and 72.6+/-73.4 U/L in the group with a QTD under 80 ms, p<0.05). The ejection fraction measured by two dimensional echocardiography on admission showed correlation with the QTD (50.9+/-11.4% in the group with a QTD over 80 ms and 54.7+/-11.2% U/L in the group with a QTD under 80 ms, p<0.05). For the coronary angiographic findings, the lesion type, according to American College of Cardiology/American Heart Association classification, correlated with the QT dispersion (type B2 or C : 64.1% in the group with a QTD over 80 ms, 49.6% in the group with a QTD under 80 ms, p<0.05) CONCLUSION: There was significant correlation between the prolonged QTD and the severity of myocardial injury at admission, and the complex coronary arterial lesion in patients with AMI.
Classification
;
Coronary Angiography
;
Coronary Vessels*
;
Death, Sudden, Cardiac
;
Diagnosis
;
Echocardiography
;
Electrocardiography
;
Heart
;
Heart Failure
;
Humans
;
Hyperlipidemias
;
Hypertension
;
Jeollanam-do
;
Myocardial Infarction*
;
Risk Factors
;
Smoke
;
Smoking
4.Aspartic proteases of Plasmodium vivax are highly conserved in wild isolates.
Byoung Kuk NA ; Eung Goo LEE ; Hyeong Woo LEE ; Shin Hyeong CHO ; Young An BAE ; Yoon KONG ; Jong Koo LEE ; Tong Soo KIM
The Korean Journal of Parasitology 2004;42(2):61-66
The plasmepsins are the aspartic proteases of malaria parasites. Treatment of aspartic protease inhibitor inhibits hemoglobin hydrolysis and blocks the parasite development in vitro suggesting that these proteases might be exploited their potentials as antimalarial drug targets. In this study, we determined the genetic variations of the aspartic proteases of Plasmodium vivax (PvPMs) of wild isolates. Two plasmepsins (PvPM4 and PvPM5) were cloned and sequenced from 20 P. vivax Korean isolates and two imported isolates. The sequences of the enzymes were highly conserved except a small number of amino acid substitutions did not modify key residues for the function or the structure of the enzymes. The high sequence conservations between the plasmepsins from the isolates support the notion that the enzymes could be reliable targets for new antimalarial chemotherapeutics.
Amino Acid Sequence
;
Animals
;
Aspartic Endopeptidases/*genetics
;
Base Sequence
;
Cloning, Molecular
;
Conserved Sequence
;
DNA, Protozoan/chemistry/genetics
;
Human
;
Molecular Sequence Data
;
Plasmodium vivax/*enzymology/genetics/isolation & purification
;
Polymerase Chain Reaction
;
Sequence Alignment
;
Sequence Analysis, DNA
;
Support, Non-U.S. Gov't
5.A Case of Weil's Disease associated with Acute Pancreatitis.
Kuen Man LEE ; Hee Jung YOON ; Jae Pil CHOI ; Sung Ho CHOI ; Jun Yong CHOI ; Yoon Soo PARK ; Jeong Ho CHO ; Young Goo SONG ; June Myoung KIM ; Byoung Chul LEE ; Joo Hee KIM
Infection and Chemotherapy 2004;36(5):321-325
Leptospirosis is a zoonotic disease of worldwide distribution that is caused by spirochetes known as Leptospira; more than 20 serogroups and more than 200 serovars are known. The disease has seasonal incidence occurring in the late summer or early fall. The typical severe case of leptospirosis is known as Weil's disease; it is characterized by hepatic and renal involvement and is common in Korea. Elevated amylase can be seen when ARF is associated but true acute pancreatitis is an uncomon complication of leptospirosis and only seven cases of well documented pancreatitis have been described abroad, with there was no case report in Korea yet. We experienced a 55-year old male patient who had Weil's disease associated with acute pancreatitis which was confirmed by elevated amylase and lipase with pancreatic swelling and peripancreatic fat infiltration on abdomen CT.
Abdomen
;
Amylases
;
Humans
;
Incidence
;
Korea
;
Leptospira
;
Leptospirosis
;
Lipase
;
Male
;
Middle Aged
;
Pancreatitis*
;
Seasons
;
Spirochaetales
;
Weil Disease*
;
Zoonoses
6.A Case of Weil's Disease associated with Acute Pancreatitis.
Kuen Man LEE ; Hee Jung YOON ; Jae Pil CHOI ; Sung Ho CHOI ; Jun Yong CHOI ; Yoon Soo PARK ; Jeong Ho CHO ; Young Goo SONG ; June Myoung KIM ; Byoung Chul LEE ; Joo Hee KIM
Infection and Chemotherapy 2004;36(5):321-325
Leptospirosis is a zoonotic disease of worldwide distribution that is caused by spirochetes known as Leptospira; more than 20 serogroups and more than 200 serovars are known. The disease has seasonal incidence occurring in the late summer or early fall. The typical severe case of leptospirosis is known as Weil's disease; it is characterized by hepatic and renal involvement and is common in Korea. Elevated amylase can be seen when ARF is associated but true acute pancreatitis is an uncomon complication of leptospirosis and only seven cases of well documented pancreatitis have been described abroad, with there was no case report in Korea yet. We experienced a 55-year old male patient who had Weil's disease associated with acute pancreatitis which was confirmed by elevated amylase and lipase with pancreatic swelling and peripancreatic fat infiltration on abdomen CT.
Abdomen
;
Amylases
;
Humans
;
Incidence
;
Korea
;
Leptospira
;
Leptospirosis
;
Lipase
;
Male
;
Middle Aged
;
Pancreatitis*
;
Seasons
;
Spirochaetales
;
Weil Disease*
;
Zoonoses
7.Clinical Usefulness of Serum (1-->3)-beta-D-glucan Measurement in the Diagnosis of Fungemia.
Suk Hoon CHOI ; Sang Hoon HAN ; Bum Sik CHIN ; Yoon Seon PARK ; Byoung Chul CHO ; Hee Man KIM ; Yoon Jae KIM ; Kkot Sil LEE ; Kyung Hee CHANG ; Young Goo SONG ; June Myung KIM
Infection and Chemotherapy 2003;35(4):205-210
BACKGROUND: Early recognition of fungemia is essential for successful treatment. However, methods to culture fungus specimen taken from fungemia patients are difficult and time consuming. To assess the clincal usefulness of beta-D-glucan in the detection of fungemia, we compared serum (1-->3)-beta-D-glucan concentrations in fungemia, bacteremia, and healthy persons. METHODS: From August 2001 to October 2002, serum (1-->3)-beta-D-glucan concentrations were measured by turbidometric assay in 16 fungemia patients, 13 bacteremia patients and 18 healthy persons. Differences in (1-->3)-beta-D-glucan concentrations between fungemia patients and other groups were compared by t-test. RESULTS: Fungemia patients were composed of 10 male and 6 female patients, and mean age was 52.9+/-16.2 years. The cut-off value for a positive result was 11 pg/mL. thirteen out of 16 fungemia patients had concentrations above the cul-off value (range:11.5-863 pg/mL, sensitivity:81.3%, specificity:100%), and mean concentration in fungemia was 217.8+/-273.8 pg/mL. Mean concentration in bacteremia was 0.1+/-0.3 pg/mL, and all the patients with bacteremia had the concentrations below the cut-off value. Mean concentration in the healthy persons was 0 pg/mL and all healthy persons had concentration below the cut-off value. The concentration in fungemia was statistically significantly higher than those of the other two groups(p-value: respectively 0.006, 0.006) CONCLUSION: We concluded that serum (1-->3)-beta-D-glucan is useful for the diagnosis of fungemia. Further study on the usefullness of serum (1->3)-beta-D-glucan for early detection of fungemia and therapeutic monitoring is warranted.
Bacteremia
;
Diagnosis*
;
Female
;
Fungemia*
;
Fungi
;
Humans
;
Male
8.Clinical Usefulness of Serum (1-->3)-beta-D-glucan Measurement in the Diagnosis of Fungemia.
Suk Hoon CHOI ; Sang Hoon HAN ; Bum Sik CHIN ; Yoon Seon PARK ; Byoung Chul CHO ; Hee Man KIM ; Yoon Jae KIM ; Kkot Sil LEE ; Kyung Hee CHANG ; Young Goo SONG ; June Myung KIM
Infection and Chemotherapy 2003;35(4):205-210
BACKGROUND: Early recognition of fungemia is essential for successful treatment. However, methods to culture fungus specimen taken from fungemia patients are difficult and time consuming. To assess the clincal usefulness of beta-D-glucan in the detection of fungemia, we compared serum (1-->3)-beta-D-glucan concentrations in fungemia, bacteremia, and healthy persons. METHODS: From August 2001 to October 2002, serum (1-->3)-beta-D-glucan concentrations were measured by turbidometric assay in 16 fungemia patients, 13 bacteremia patients and 18 healthy persons. Differences in (1-->3)-beta-D-glucan concentrations between fungemia patients and other groups were compared by t-test. RESULTS: Fungemia patients were composed of 10 male and 6 female patients, and mean age was 52.9+/-16.2 years. The cut-off value for a positive result was 11 pg/mL. thirteen out of 16 fungemia patients had concentrations above the cul-off value (range:11.5-863 pg/mL, sensitivity:81.3%, specificity:100%), and mean concentration in fungemia was 217.8+/-273.8 pg/mL. Mean concentration in bacteremia was 0.1+/-0.3 pg/mL, and all the patients with bacteremia had the concentrations below the cut-off value. Mean concentration in the healthy persons was 0 pg/mL and all healthy persons had concentration below the cut-off value. The concentration in fungemia was statistically significantly higher than those of the other two groups(p-value: respectively 0.006, 0.006) CONCLUSION: We concluded that serum (1-->3)-beta-D-glucan is useful for the diagnosis of fungemia. Further study on the usefullness of serum (1->3)-beta-D-glucan for early detection of fungemia and therapeutic monitoring is warranted.
Bacteremia
;
Diagnosis*
;
Female
;
Fungemia*
;
Fungi
;
Humans
;
Male
9.Normal Values of Tendon Reflexes in Normal Korean Adults.
Chang Pyo KIM ; Sang Yoon KIM ; Joo Byoung LEE ; Bong Goo KANG ; Yang Gyun LEE
Journal of the Korean Academy of Rehabilitation Medicine 1997;21(2):310-316
The purpose of this study was to establish the normal values of tendon reflex in normal Korean adults. Ankle tendon reflex(ATR), patellar tendon reflex(PTR) and medial hamstring tendon reflex (MHTR) responses were recorded in 96 limbs of 48 normal Korean adults by delivering tendon taps with an electric reflex hammer. Latency to the onset of the triggered response, peak to peak amplitude and duration of the wave were measured after several repetitions. Minimum latency and duration of the elicited response were chosen to calculate normal means. Side differences were also evaluated. As amplitude showed a marked interindividual variation and side to side variation, lowest recorded value was selected to represent the lower limit of normal. Mean values of latency, duration and amplitude were 30.27?3.18 msec, 11.05?1.08 msec and 1.98?0.89 mV for ATR, 16.37?1.58 msec, 20.63?1.68 msec and 1.56?0.76 mV for PTR and 20.25?2.14 msec, 10.95?1.57 msec and 0.71?0.56 mV for MHTR. Age, height, and leg length showed significant correlation with the latency of ATR, PTR and MHTR latency(P<0.001). We believe our results can be used as guideline researches in clinical practice.
Adult*
;
Ankle
;
Extremities
;
Humans
;
Leg
;
Patellar Ligament
;
Reference Values*
;
Reflex
;
Reflex, Stretch*
;
Tendons*
10.Analysis of Histological Findings and Estrogen and Progesterone Receptor Status in Luteal Phase Defect Caused by Delayed Ovulation and Clomiphen Treatment.
Kyu Rae KIM ; Hee Jeong AHN ; Jai Hyang GO ; Dong Hee CHOI ; Byoung Goo YOON
Korean Journal of Pathology 1996;30(12):1106-1115
Luteal phase defect (LPD) is an ovulatory disorder of considerable clinical importance that leads to delayed endometrial maturation and inadequate endometrium for blastocyst implantation. This disorder is implicated in infertility and recurrent spontaneous abortion. We analyzed the endometrial histological maturation, and the estrogen receptor(ER) and progesterone receptor(PR) status in patients with unexplained delayed ovulation, and in patients with ovulation induction by clomiphen citrate. The purpose of this study was to determine whether the length of the follicular phase influences the endometrial histological maturation and the hormonal receptor status, and to know the effect of clomiphen citrate on the endometrium. In the delayed ovulation group, the endometrium was characterized by an irregular outpouching and dilated lumina of the glands, a decreased secretory activity and predecidualization, and a decreased number of granulocytes in the stroma. In the clomiphen citrate-ovulation induction group, glandular proliferation was markedly diminished with poorly convoluted and narrow glands, secretory activity was decreased, stroma was undecidualized, and there was an absence of granulocytes. ER expression was increased in the glandular epithelium in the delayed ovulation group, and both ER and PR expressions were markedly decreased in the glandular epithelium and stromal cells in the ovulation induction group. Endometrial maturation and differentiation may be diminished by increased estrogenic and relatively deficient progesterone effects in patients with delayed ovulation. The hormonal receptor status might also be influenced by hormonal changes. Clomiphen citrate successfully induced ovulation in patients with delayed ovulation, however, endometrial proliferation and maturation were markedly suppressed. This might be related to the lower pregnancy rate and higher abortion rate in patients with clomiphen citrate induced ovulation.
Pregnancy
;
Female
;
Humans

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