1.A asymptomatic rectal endometriosis with endometrial cyst.
Hyoung Min CHOI ; Sung Ki LEE ; Yoon Ho LEE ; Dong Hoon HWANG ; So Yeon PARK
Korean Journal of Obstetrics and Gynecology 1992;35(11):1679-1685
No abstract available.
Endometriosis*
;
Female
2.Extrapelvic endometriosis.
Ki Hong CHANG ; Hye Jeong YEON ; Kyoung Soo PARK ; Yoon Ho LEE ; Dong Hun HWANG
Korean Journal of Fertility and Sterility 1993;20(2):177-181
No abstract available.
Endometriosis*
;
Female
3.Ischemic stroke as an initial presentation of primary bone marrow lymphoma
Mi-Yeon Eun ; June Woo Ahn ; Dong Won Baek ; Ji Yun Jeong ; Jaechun Hwang
Neurology Asia 2020;25(1):59-62
Various cancer types have been associated with cancer-related cerebral infarction. In this study, we
describe the first case of cancer-related cerebral infarction in which the underlying disease was primary
bone marrow lymphoma (PBML). A 79-year-old man presented with abruptly developed bilateral lower
extremity weakness and confusion. Diffusion-weighted imaging on admission showed multiple cortical
and subcortical embolic infarction lesions in multiple vascular territories. Diagnostic evaluations to
determine the embolic source revealed no abnormalities. Laboratory testing demonstrated elevated
D-dimer (2.59 μg/mL) but no other prothrombotic abnormalities. In suspicion of cancer-related stroke,
we performed chest CT, abdomen CT, and FDG-PET to detect the hidden malignancy. Findings
revealed no evidence of cancer; however, they did reveal signs of anemia (hemoglobin 9.0 g/dL).
Bone marrow aspiration biopsy showed large atypical B cell involvement suggestive of high-grade B
cell lymphoma. The patient was diagnosed with primary bone marrow diffuse large B-cell lymphoma
initially presenting with ischemic stroke. Our case suggests that primary bone marrow cancer may be a
candidate for the differential diagnosis of hidden malignancy in patients with suspected cancer-related
stroke. Bone marrow biopsy may be essential for establishing an appropriate differential diagnosis in
patients with abnormal hematologic findings.
4.Plasma levels of oral methotrexate in children receiving maintenance chemotherapy for acute lymphocytic leukemia.
Soo Kwan LEE ; Kih Yeon SONG ; Young Hee HWANG ; Young Hwan LEE ; Jeong Ok HAH ; Chun Dong KIM
Journal of the Korean Pediatric Society 1993;36(7):936-943
This study was conducted to investigate plasma levels of oral methotrexate in rabbits and children receiving maintenance chemotherapy for acute lymphocytic leukemia. Eight New Zealand white rabbits, weighing 2kg in body weight, were divided into 3 groups and 5mg of methotrexate from 3 different manufactorying company was administered to the each group rabbits via nasogastric tube. Time to peak concentration ranged from 30 minutes to 3 hours (mean 1.2+/-0.9 hour)and the peak plasma concentration ranged from 0.08 micro M to 0.21micron M(mean 0.14+/-0.05 micronM)and area under the plasma concentration-time curve ranged from 0.6micron M.hr to 1.66micron M,hr (mean 1.06+/-0.36micronM,hr). There were no statistically significant difference in AUC of methotrexate in 3 groups, but interindividual variability in plasma levels of methotrexate was noted. Twelve patients with ALL who were receiving maintenance chemotherapy at pediatric department of Yeungnam University Hospital from August, 1988 to August, 1991 were studied. Plasma levels of oral methotrexale were monitored following an oral dose of 3.3 mg~10mg/m2 which was modified from recommended dose of 10 mg/m2 due to hepatotoxicity or myelosuppression. Time to peak concentration ranged from 30 minutes to 2 hours(mean 1.2+/-0.4 hour) and the peak plasma concentration ranged from 0.34 micron M to 0.8 micron M (mean 0.58+/-0.18micron M). The area under the plasma concentration-time curve ranged from 1.25micron M,hr to 3.79 micronM,hr (mean 2.71+/-0.84microM,hr)while standard area under the plasma concentration-time curve ranged from 0.13micronM, hr/mg/m2 to 0.54micronM, hr/mg/m2 (mean0.4+/-0.15micronM hr/mg/m2).Interindividual variability in plasma levels following an oral dose of methotrexate was noted. Peak plasma concentrations of study patients were all less than 1 micronM which is necessary for antileukemic effect of methotrexate in vitro. It seems to be necessary to increase the dose of methotrexate for all study patients, however optimal dose increment of methotrexate avoiding hepatotoxicity and myelosuppression need to be investigated further and measurement of plasma level of methotrexate is recommended when dose modification of methotrexate is made.
Area Under Curve
;
Body Weight
;
Child*
;
Humans
;
Maintenance Chemotherapy*
;
Methotrexate*
;
Pharmacology
;
Plasma*
;
Precursor Cell Lymphoblastic Leukemia-Lymphoma*
;
Rabbits
5.Epidural Anesthesia for Cesarean Section in a Parturient with Eisenmenger's Syndrome.
Byeong Moon HWANG ; Ji Yeon SIM ; Sung Kang CHO ; Dong Myeong LEE
Korean Journal of Anesthesiology 2000;38(3):563-566
Eisenmenger's syndrome is defined as pulmonary hypertension with right-to-left or bidirectional shunting of blood through an intracardiac or aorto-pulmonary commumication. It can occur with complex congenital cardiac malformations, such as septal defect and patent ductus arteriosus. Parturients with Eisenmenger's syndrome are at high risk for peripartum morbidity and mortality. We experienced a case of parturient for cesarean section with Eisenmenger's syndrome and performed epidural anesthesia with fractionated doses of 2% lidocaine and fentanyl. The sensory block reached to T10 level and blood pressure was maintained with intravenous phenylephrine. After baby out, sudden hypotension with severe bradycardia developed and arterial oxygen saturation dropped. Immediate intubation and resuscitation was done, but cardiac rhythm disturbance, hypoxemia, and acidosis did not corrected. Cardiac standstill developed and stopped resuscitation. The neonate's Apgar score was 7 and he was transferred to pediatric ICU.
Acidosis
;
Anesthesia, Epidural*
;
Anoxia
;
Apgar Score
;
Blood Pressure
;
Bradycardia
;
Cesarean Section*
;
Ductus Arteriosus, Patent
;
Eisenmenger Complex*
;
Female
;
Fentanyl
;
Hypertension, Pulmonary
;
Hypotension
;
Intubation
;
Lidocaine
;
Mortality
;
Oxygen
;
Peripartum Period
;
Phenylephrine
;
Pregnancy
;
Resuscitation
6.Transconjunctival Lowering of the Lateral Lower Eyelid by Shortening of the Posterior Lamellae.
Moon Seop CHOI ; Tae Hyung KIM ; Dong Yeon HWANG
Archives of Aesthetic Plastic Surgery 2012;18(1):26-30
Commonly, the lateral canthus is located higher than medial canthus and many people are often shown short lateral palpebral fissure. This seemed to be shown as wild, anxious, and pierced eye. Many surgeons have made desperate efforts to improve this by anchoring lateral canthus to lower part of orbital bone. But, authors would like to show the two-third portion of the lateral lower eyelid by anchoring to capsulopalpebral fascia via transconjunctival approach. Authors performed this operation since 2009 and first named it by "Nun-Mit-Teuim" in Korean. Key of this operation is that anchoring of the lower tarsus and capsulopalpebral fascia via transconjunctival approach without resection of skin. It is not necessary to remove a redundant conjunctiva. Commonly, the lateral canthoplasty is performed simultaneously to descend a lower eyelid easily. After the operation, it can be observed that the lower eyelid lift up a little bit for 1~2 weeks and redundant conjunctiva will be constricted in several months. The operation is defined as anchoring the lower tarsus to capsulopalpebral fascia. The limit of the operation is it cannot change the position of the lateral canthus. Over-lowering the lower eyelid to increase palpebral fissure, results in scleral show and unfavorable line. Thus, it is important that surgeons should remind the purpose and limitation of this operation.
Animals
;
Ankle
;
Conjunctiva
;
Eye
;
Eyelids
;
Fascia
;
Isothiocyanates
;
Orbit
;
Skin
7.A case of myxoid leiomyosarcoma of uterus.
Dong Hoon HWANG ; Yeon Sook LEE ; Won Il PARK ; Yoon Ho LEE ; Yui Jung KIM ; Chan Il PARK
Korean Journal of Obstetrics and Gynecology 1993;36(7):2058-2062
No abstract available.
Leiomyosarcoma*
;
Uterus*
8.A Case of Cerebral Vasculitis in Henoch-Sh nlein Purpura.
Soo Yeon LEE ; Ju Mi CHOUNG ; Dong Jin HWANG ; So Hee EUN ; Pyoung Han HWANG
Journal of the Korean Pediatric Society 2002;45(12):1601-1605
Henoch-Sh nlein Purpura(HSP) is an immuologically mediated systemic vasculitis of small blood vessels affecting predominantly the skin, gastrointestinal tract, joints, and kidneys. Clinical neurological manifestations such as headaches, behavioral changes, mental changes, seizures, and visual loss are described, but neurological complication are rare during the course of HSP. We experienced a case of an 8 year-old male with HSP who presented with seizures. Magnetic resonance imaging(MRI) showed multiple high signal intensity in both cortical and subcortical areas of frontal and parieto-occipital lobes and magnetic resonance(MR) angiogram showed stenosis of cerebral arteries, compatible with MRI and MR angiogram findings of cerebral vasculitis. We report this case with related literature.
Blood Vessels
;
Cerebral Arteries
;
Child
;
Constriction, Pathologic
;
Gastrointestinal Tract
;
Headache
;
Humans
;
Joints
;
Kidney
;
Magnetic Resonance Imaging
;
Male
;
Neurologic Manifestations
;
Purpura*
;
Seizures
;
Skin
;
Systemic Vasculitis
;
Vasculitis, Central Nervous System*
9.Highly Sensitive and Novel Point-of-Care System, aQcare Chlamydia TRF Kit for Detecting Chlamydia trachomatis by Using Europium (Eu) (III) Chelated Nanoparticles.
Ji Yeon HAM ; Jaean JUNG ; Byung Gap HWANG ; Won Jung KIM ; Young Seop KIM ; Eun Ju KIM ; Mi Yeon CHO ; Mi Sun HWANG ; Dong Il WON ; Jang Soo SUH
Annals of Laboratory Medicine 2015;35(1):50-56
BACKGROUND: The bacterium Chlamydia trachomatis is one of the leading causes of sexually transmitted diseases worldwide. Since no simple and effective tool exists to diagnose C. trachomatis infections, we evaluated a novel point-of-care (POC) test, aQcare Chlamydia TRF kit, which uses europium-chelated nanoparticles and a time-resolved fluorescence reader. METHODS: The test performance was evaluated by comparing the results obtained using the novel POC testing kit with those obtained using a nucleic acid amplification test (NAAT), using 114 NAAT-positive and 327 NAAT-negative samples. RESULTS: The cut-off value of the novel test was 20.8 with a detection limit of 0.27 ng/mL. No interference or cross-reactivity was observed. Diagnostic accuracy showed an overall sensitivity of 93.0% (106/114), specificity of 96.3% (315/327), positive predictive value (PPV) of 89.8% (106/118), and negative predictive value (NPV) of 97.5% (315/323). The sensitivity of the novel test was much higher than that of currently available POC tests. Furthermore, the relative ease and short turnaround time (30 min) of this assay enables C. trachomatis-infected individuals to be treated without a diagnostic delay. CONCLUSIONS: This simple and novel test is a potential tool to screen a larger population, especially those in areas with limited resources.
Adult
;
Aged
;
Aged, 80 and over
;
Chlamydia Infections/*diagnosis
;
Chlamydia trachomatis/*genetics/isolation & purification
;
DNA, Bacterial/chemistry/metabolism
;
Europium/*chemistry
;
Female
;
Humans
;
Male
;
Metal Nanoparticles/*chemistry
;
Middle Aged
;
Point-of-Care Systems
;
Reagent Kits, Diagnostic
;
Real-Time Polymerase Chain Reaction
;
Sensitivity and Specificity
;
Young Adult
10.The change of estrogen and progesterone receptors in uterine myoma after treatment with GnRH analogue.
Ki Hyun PARK ; Won Il PARK ; Bo Yeon LEE ; Byung Suk LEE ; Dong Jae CHO ; Dong Hoon HWANG ; Chan Ho SONG
Korean Journal of Obstetrics and Gynecology 1993;36(7):1913-1918
No abstract available.
Estrogens*
;
Gonadotropin-Releasing Hormone*
;
Leiomyoma*
;
Progesterone*
;
Receptors, Progesterone*