1.Percutaneous Balloon Mitral Vavuloplasty under General Anesthesia in Patient with Mitral Stenosis and Schizophrenia.
Jung Han YOON ; Keum Soo PARK ; Kyung Hoon CHOE ; Kyung Bong YOON ; Sung Oh HWANG
Korean Circulation Journal 1992;22(6):1050-1054
Since the introduction of percutaneous mitral valvotomy(PMV) in 1984, PMV was an effecive alternative to surgical commissurotomy in selected patients with severe mitral stenosis. Also PMV was an excellent palliative strategy in such patients who were high risk for operative management or longterm anticoagulation was not feasible. We performed PMV in a patient with very tight mitral stenosis and severe pulmonary hypertension under the general anesthesia because the patient was anticipated to be uncooperative due to mental problem, who was diagnosed as schizophrenia 16 years ago. Robinol was used for premedication and i.v fentanyl was used for maintenance of anesthesia. Inoue balloon was introduced into the LV and gradual ballooning was performed with favorable results. Total anesthesia time and interval from internal jugular vein puncture to the completion of valvuloplasty were 1 hour 45 min and 40 minutes respectively. Hemodynamic variables were improved immediately after intervention and mitral valve area was increased from 0.5cm2 to 1.3cm2.
Anesthesia
;
Anesthesia, General*
;
Fentanyl
;
Hemodynamics
;
Humans
;
Hypertension, Pulmonary
;
Jugular Veins
;
Mitral Valve
;
Mitral Valve Stenosis*
;
Premedication
;
Punctures
;
Schizophrenia*
2.Radiological analysis of normal mammogram
Eun Ock OH ; Eun Kyung YOON ; Won Hyung WOO
Journal of the Korean Radiological Society 1982;18(4):872-878
Two hundreds fifty seven cases of normal mammogram were analysis for classification of types of breasts.Ranging from 20 to 79 years of age, mean age was 45 years. Two projections, craniocaudal & mediolateral, were used. Age, nutrient condition, familial tendency and hormonal factors influence to breats hisologically. Normalbreats were classified into the standard (9.75%), ductal (71.7%), glandular (6.2%) and atrophic (12.4%) types.Ductal type was further subclassified into intraductal, periductal and mixed types. Atrophic type was susbdividedinto fibrous and fatty, Standard type was observed in younger women, instead of atrophic type was seen in olderage group, especially after menopause. Periductal type was most common (65.4%), Glandular type was mostly intwenty to thirty year group. According to increase of age, gladular or ductal type transformed into atrophic type.
Classification
;
Female
;
Humans
;
Menopause
3.Correlation of Lifetime Symptom Dimensions with Cognitive Function and Other Clinical Characteristics in Schizophrenia Patients.
Youngah CHO ; Seunghyong RYU ; Hyeji OH ; Sohee OH ; Taesung PARK ; Se Chang YOON ; Kyung Sue HONG
Korean Journal of Schizophrenia Research 2014;17(2):72-79
OBJECTIVES: Considering large diversity of clinical presentation of schizophrenia, it is important to identify valid clinical subtypes or dimensions that might have homogeneous biological underpinning. The current study aimed to explore lifetime symptom-based dimensional phenotypes in patients with chronic schizophrenia, and to investigate their correlation with cognitive functions and other clinical characteristics. METHODS: Lifetime-based symptoms and additional clinical variables were measured using the Diagnostic Interview for Genetic Studies and the Schedule for the Deficit Syndrome in 315 clinically stable patients with chronic schizophrenia. Through principal components factor analysis, eight dimensional phenotypes were obtained. Comprehensive neuropsychological tests were administered for 103 out of 315 patients, and domain scores were calculated for cognitive domains defined in the MATRICS consensus battery. RESULTS: 'Non-paranoid delusion factor' including delusions of grandiose or religious nature, showed significant negative correlation with processing speed, working memory, attention/vigilance, and general cognitive ability, and positive correlation with intra-individual variability. 'Negative symptom factor' showed significant negative correlation only with general cognitive ability. Those two factors were also negatively correlated with function levels measured by Global Assessment Scale (GAS), and associated with poor treatment responses. CONCLUSION: Symptom-based dimensional phenotypes of schizophrenia measured on a lifetime basis showed discriminative correlation with cognitive function domains, global functioning level, and overall treatment responses, indicating their possibility as valid phenotype axes of schizophrenia having homogeneous biologic basis.
Appointments and Schedules
;
Cognition
;
Consensus
;
Delusions
;
Humans
;
Memory, Short-Term
;
Neuropsychological Tests
;
Phenotype
;
Schizophrenia*
4.Prevalence of antibodies against chlamydia pneumoniae among blood donors and patients with tests of blood chemistry and mycoplasma pneumoniae antibody.
Yoon Seob JUNG ; Kyung Won LEE ; Hyun Sook KIM ; Oh Hyun KWON ; Sang Rae CHO
Korean Journal of Infectious Diseases 1993;25(2):131-138
No abstract available.
Antibodies*
;
Blood Donors*
;
Chemistry*
;
Chlamydia*
;
Chlamydophila pneumoniae*
;
Humans
;
Mycoplasma pneumoniae*
;
Mycoplasma*
;
Pneumonia, Mycoplasma*
;
Prevalence*
5.Experimental Study on Representation of Flow on the Bifurcated Carotid Arterial Phantoms Using Magnetic Resonance Angiography.
Tae Sub CHUNG ; Yoon Chul RHIM ; Sang Ho SUH ; Kyung Oh KIM ; En Hao JIN
Journal of the Korean Radiological Society 1995;33(2):189-195
PURPOSE: A common finding of carotid artery on magnetic resonance angiograms(MRAs) is a signal dropout along the posterior wall of carotid bulb due to reverse flow. The purpose of this study is to evaluate variable flow patterns on bifurcated carotid arterial phantoms using steady-state flow. MATERIALS AND METHODS: We designed phantoms of a bifurcated carotid artery with acrylic materials. Flow patterns were evaluated with axial and coronal imaging of MRA(2D-TOF, 3D-TOF), color Doppler imaging, and computational fluid dynamics (CFD) within the phantoms constructed of an automated closed-type circulatory system filled with 4% sugar solution. These findings were compared with findings obtained from normal volunteers. RESULTS: Axial 3D-TOF MRA images exhibited closer resemblance to the contour of the inner wall of phantoms when compared to coronal 2D-TOF MRA imaging. However, 2D-TOF MRA showed good contrast difference of signal intensities between forward flow area and reverse flow area. Dark zones with reduced signal intensities due to reversed flow were separated from the outer wall of the internal and external carotid arteries by a thin layer of forward flow along the wall on the source slice image of MRA. The general hemodynamics of the phantoms on MRA were identical to hemodynamics on color Doppler imaging and CFD. The results obtained with the phantoms matched the findings on normal volunteers. CONCLUSION: Although representations of bifurcated carotid arterial phantoms on axial 3D-TOF MRA were excellent if ideally desinged, the zone of reversed flow could be a significant factor in creating distorted image when the zone of reversed flow contacted directly with curved or deformed arterial wall.
Carotid Arteries
;
Carotid Artery, External
;
Healthy Volunteers
;
Hemodynamics
;
Humans
;
Hydrodynamics
;
Magnetic Resonance Angiography*
;
Patient Dropouts
6.Adenoid cystic carcinoma of the salivary glands.
Sung Gil PARK ; Samuel LEE ; Sung Soo OH ; Yoon Kyu PARK ; Hye Kyung LEE
Journal of the Korean Surgical Society 1992;43(3):313-320
No abstract available.
Adenoids*
;
Carcinoma, Adenoid Cystic*
;
Salivary Glands*
7.Interpretation of Posterior Wall of Bronchus Intermedius and Subcarinal Region in Lateral Chest Radiographs.
Dong Wook SUNG ; Joo Hyeong OH ; Yup YOON
Journal of the Korean Radiological Society 1996;35(2):205-212
A lateral chest radiograph is frequently useful and sometimes decisive in detecting chest pathology. Certainparts, such as the posterior wall of the bronchus intermedius (PWBI) and subcarinal regions, can be evaluated onlyon lateral chest radiograph. The authors present and emphasize the findings of PWBI and subcarinal abnormalities. Abnormal PWBI, more than 3 mm thick, is seen in cases of minor degree of oblique position, pulmonary edema, inflammation, neoplasm and enlarged lymph nodes. It can also be seen in patients with subcarinal mass. The findings of subcarinal mass on lateral view are ill-defined increased opacity, fullness of the inferior hilarregion, doughnut sign, extra-density and thickening of the PWBI. Detection of changes in the PWBI and subcarinalregion may be the only diagnostic evidence of hilar and subcarinal disease and helps in its early detection priorto computed tomography.
Bronchi*
;
Humans
;
Lymph Nodes
;
Pathology
;
Radiography, Thoracic*
;
Thorax*
8.A Case of Capsule Contraction Syndrome following Continuous Curvilinear Capsulorhexis.
Hyun Seok OH ; Kyung Chul YOON ; Bon Sin KOO
Journal of the Korean Ophthalmological Society 1995;36(10):1804-1809
Capsule contraction syndrome is severe constriction of the anterior capsular opening and equatorial capsular bag diameter after extracapsular cataract surgery. It is relatively common in patients with continuous curvilinear capsulorhexis, but rarely in can-opener capsulotomy or anterior radial capsular tears. It is due to capsular bag contraction from fibrous dysplasia of residual lens epithelial cells with weakened zonular resistance. We experienced a case of capsule contraction syndrome in a 72-year old woman with retinitis pigmentosa, who had phacoemulsification following an intact 5.0mm-continuous curvilinear capsulorhexis 4 months before. After successful YAG laser radial anterior relaxing capsulotomy, her visual acuity restored to 0.3, limited by cystoid macular edema.
Aged
;
Capsulorhexis*
;
Cataract
;
Constriction
;
Epithelial Cells
;
Female
;
Humans
;
Lasers, Solid-State
;
Macular Edema
;
Phacoemulsification
;
Retinitis Pigmentosa
;
Visual Acuity
9.Splanchnic Artery Pseudoaneurysm: Transcatheter Embolization.
Ihn Sub KIM ; Joo Hyeong OH ; Yup YOON
Journal of the Korean Radiological Society 1997;36(3):417-423
PURPOSE: To evaluate the therapeutic effect and difficulty of embolization of pseudaneurysm of the splanchnic artery. MATERIALS AND METHODS: Between February 1988 and June 1996, we employed transcatheter embolization to treat a total of eleven patients with splanchnic artery pseudoaneurysm by transcatheter embolization. Eight were males and three were females ; their ages ranged from four to 70 years (mean 44). Three patients had previously been operated on, three had undergone biopsy, and on three, percutaneous transhepatic biliary drainage had been performed ; one had been involved in a traffic accident and one had suffered a gun-shot wound. All patients underwent diagnostic angiography and superselective embolization using a 3F microcatheter. We used Gelfoam with microcoil four times, microcoil twice, Gelfoam once, Gelfoam with ethanol once, a detachable balloon once, and Ivalon once. RESULTS: Arteries in which pseudoaneurysm had occurred were as follows: renal, four, hepatic, three; gastroduodenal, two ; superior mesenteric, one. Nine patients underwent one session of procedure and two underwent two session. Nine patients (82%) were treated successfully and without complication by embolization. Two patients failed to embolize due to vascular spasm and tortuosity in one and a wide aneurysmal neck in the other ; one of these died six days later and the other was operated on. CONCLUSION: Although there are therapeutic difficulties in cases of vascular spasm, tortuosity, or a wide aneurysmal neck, embolization of pseudoaneurysm of the splanchnic artery is a safe and effective life-saving procedure.
Accidents, Traffic
;
Aneurysm
;
Aneurysm, False*
;
Angiography
;
Arteries*
;
Biopsy
;
Drainage
;
Ethanol
;
Female
;
Gelatin Sponge, Absorbable
;
Humans
;
Male
;
Neck
;
Spasm
;
Wounds and Injuries
10.Percutaneous balloon mitral valvuloplasty in patient with mitral stenosis and kyphoscoliosis.
Jung Han YOON ; Keum Soo PARK ; Kyung Hoon CHOE ; Sung Oh HWANG
Korean Circulation Journal 1993;23(2):320-324
Percutaneous balloon mitral valvuloplasty(PMV) was comparable to surgical commissurotomy in initial and long term follow-up results in selected patients with symptomatic severe mitral stenosis. Transseptal puncture was necessary for antegrade introduction of balloon. In patient with kyphoscoliosis, PMV was relatively contraindicatied due to difficulty and risk of septal puncture. We performed the PMV in a patient with kyphoscoliosis and severe mitral stenosis. The patient was presented with NYHA class III. Echocardiographic evaluation revealed mitral valve area of 0.8cm2 and mean diastolic pressure gradient of 12mmHg. X-ray film of T-L spine showed severe kyphoscoliosis. Transseptal puncture was possible with modification of angle of Brockenbrough needle at the site of 15cm from the needle tip. After transseptal puncture, Inoue balloon was introduced into the LV and gradual ballooning was performed with optimal results. Hemodynamic variable were improved immediately after intervention and mitral valve area was increased from 0.7cm2 to 1.8cm2. Patient was discharged with NYHA class I.
Blood Pressure
;
Echocardiography
;
Follow-Up Studies
;
Hemodynamics
;
Humans
;
Mitral Valve
;
Mitral Valve Stenosis*
;
Needles
;
Punctures
;
Spine
;
X-Ray Film