1.The Effectiveness of Questionnaire Utilized for Screening Noise Induced Hearing Loss.
Jae Seok SONG ; Byoung Soo CHOI ; Jong Uk WON ; Jae Hoon ROH
Korean Journal of Occupational and Environmental Medicine 2000;12(4):473-482
OBJECTIVES: This study was performed to investigate the effectiveness of the questionnaire. METHODS: Workers'health examination records, work environment record, and questionnaires of selected industries as samples were analysed using logistic regression analysis and discrimination analysis Results'Cases of bearing impairment (Dl+C) as dependent variables, and age, work duration and level of environmental noise as independent variables were selected for multiple unconditional logistic regression analysis. Odds ratio was 4.04 in hearing difficulty, 2.78 in tlnnitus and 1.08 in age. In the second analysis Noise induced hearing loss is selected as dependent variable. The OR in hearing difficulty was 3.67(95 % C.1. : 1.61 8.61), and was 1.09(95 % C.1. : 1.05-1.14) in age. Conditionnal multlple logistic regression analysis was performed. In hearing impairment as dependent variable, the OR of age was 1.02(95 % C.1. : 1.00-1.04) and other variables were not significant. However, NIHL as dependent, the OR of hearing difficulty was 4.57(95 % C.1. : 1.43-14.67). According to multiple logistic regression adopting each items of questionnaire as dependent variable, the only item of hearing difficulty showed significant difference with hearing ability. The discrimination analysis was performed with the class variable of hearing impairment, and discrimination variables of age, work duration, and environment noise level. The sensitivity of 59 %, and specificity of 88 %, and average error count of 23 % were obtained. When the numbers of items answered in questionnaire were assumed as the parameter of judgement for noise induced hearing loss (NIHL), the highest sensitivity and specificity were 33.5% and 49.0% in cases of more than two items answered. CONCLUSIONS: The development of items that is simple and discriminative mainly consisted of chronic and specific diseases related items is needed. Computerization for newly developed items might be needed to establish effective surveillance system for NIHL in the future.
Discrimination (Psychology)
;
Hearing Loss*
;
Hearing*
;
Logistic Models
;
Mass Screening*
;
Noise*
;
Odds Ratio
;
Questionnaires*
;
Sensitivity and Specificity
2.Experience in High Speed Rotational Coronary Atherectomy.
Eak Kyun SHIN ; Tae Hoon AHN ; Jae Woong CHOI ; In Seok CHOI
Korean Circulation Journal 1992;22(4):557-562
BACKGROUND: Balloon PTCA for the distal, long, eccentric coronary artery stenosis will be at high risk for severe dissection or acute occlusion during or after procedure. METHODS AND RESULTS: High Speed Rotational Atherectomy followd by low pressure balloon angioplasty due to distal, long, eccentric coronary artery stenosis. Rotational coronary atherectomy debulked the lesion quickly without difficulty. Rotational Coronary Atherectomy with adjuctive low pressure balloon inflation was successful without event. CONCLUSIONS: This case illustrates the point that complementary deployment of devices may not only improve success of percutaneous coronary intervention, but also may extend its scope.
Angioplasty, Balloon
;
Atherectomy, Coronary*
;
Coronary Stenosis
;
Inflation, Economic
;
Percutaneous Coronary Intervention
3.A Case of Acute Rhenmatic Fever Associated with Acute Poststreptococcal Glomerulonepheitis.
Ho Kyung CHOI ; Dong Seok CHOI ; Jae Ho LEE ; Young Hun CHUNG ; Hyon Soon LEE
Journal of the Korean Pediatric Society 1989;32(12):1744-1748
No abstract available.
Fever*
4.Rotational Deformity after Closed Interlocking nailing of Femoral Fracture
Joon Sik KIM ; Ye Soo PARK ; Jae Yeol CHOI ; Ahn Seok CHOI
The Journal of the Korean Orthopaedic Association 1995;30(3):673-679
Closed interlocking nailing has become a common method of treatment of femoral fractures in adults. Interlocking nailing had a tendency toward rotational deformity and shortening. Therefore, we determined anteversion of the femoral neck after closed IM nailing of the femoral fractures. Femoral rotational deformity in both leg was determined by the construction of a line through the femoral neck and another through the transcondylar plane of the distal portion of the femur, using the CT scanning. We performed a retrospective study of 15 patients treated with closed IM nailing for femoral shaft fractures from 1989 to 1994. 1. The average differences in anteversion angle was 12.9 degree. 2. 3 cases(50%) in 6 cases that have difference more than 15° are accompanied with ispilateral injury of the knee joint and the lower leg. 3. Angle difference of the rotational deformity of proximal or distal femoral fractures is 15.5° which is 3.5° larger than that of fractures of femoral midshaft, 12.0°.
Adult
;
Congenital Abnormalities
;
Femoral Fractures
;
Femur
;
Femur Neck
;
Humans
;
Knee Joint
;
Leg
;
Methods
;
Retrospective Studies
;
Tomography, X-Ray Computed
5.Predictive value of serum beta-hCG level in pregnancies following in vitro fertilization and embryo transfer.
Seok Hyun KIM ; Chang Suk SUH ; Doo Seok CHOI ; Young Min CHOI ; Chang Jae SHIN ; Jung Gu KIM ; Shin Yong MOON ; Jin Yong LEE ; Yoon Seok CHANG
Korean Journal of Fertility and Sterility 1992;19(1):41-48
No abstract available.
Embryo Transfer*
;
Embryonic Structures*
;
Fertilization in Vitro*
;
Pregnancy*
6.A Case of Toxic Shock Syndrome Caused by Methicillin-resistant Staphylococcus aureus (MRSA) Following a Burn Injury.
Jin Hyoung CHOI ; Jae Hong CHOI ; Dae Il KIM ; Jae Seok KIM ; Eun Hwa CHOI
Korean Journal of Pediatric Infectious Diseases 2009;16(2):205-209
Staphylococcal toxic shock syndrome (TSS) is a severe systemic illness caused by toxins produced by Staphylococcus aureus. We report a case of staphylococcal TSS in a 16 month-old boy who presented with high fever, vomiting, skin rash, and shock after a burn injury. He was managed with intravenous vancomycin, fresh frozen plasma, and intravenous immunoglobulin. Methicillin-resistant S. aureus (MRSA) was isolated from the burn wound site and anterior nostril of the patient. In addition, the MRSA isolate was genetically characterized.
Burns
;
Exanthema
;
Fever
;
Humans
;
Immunoglobulins
;
Methicillin Resistance
;
Methicillin-Resistant Staphylococcus aureus
;
Plasma
;
Shock
;
Shock, Septic
;
Staphylococcus aureus
;
Vancomycin
;
Vomiting
7.A Case of Myeloid Blast Crisis of Ph-positive Chronic Myeloid Leukemia with t(3;21)(q26;q22).
Gui Jeon CHOI ; Hyo Jin CHUN ; Dong Seok JEON ; Jae Ryong KIM ; Ki Young KWON
Korean Journal of Clinical Pathology 1997;17(1):21-27
The t(3;21) (q26;q22) is associated with chronic myelogenous leukemia in blast crisis, leukemia evolving from therapy-related myelodysplasia, and with leukemia following other hematopoietic proliferative diseases. The t(3;21) is rare secondary aberration in blast crisis of Philadelphia(Ph)-positive chronic myeloid leukemia, which may be restricted to patients entering myeloid blast crisis. We report here in one case of chronic myeloid leukemia in blast crisis which reveals both t(9;22) (q34;q11), and t(3;21) (q26 ;q22). A 62-year-old male was diagnosed as chronic myeloid leukemia 5 years ago, received hydroxyurea therapy, and admitted because of gingival bleeding and fever. On examination, splenomegaly and leukocytosis with proliferated blasts(91%) in peripheral blood were noted. Bone marrow aspirate showed hypercellularity with severe blast proliferation(92.5%) which revealed all negative in peroxidase and PAS stain. Cytogenetic study of bone marrow cells showed the karyotype 46, XY, t(3;21) (q26;q22), t(9;22) (q34;q11), which might be suspected as myeloid blast crisis. Above finding was confirmed by the result of immunophenotyping(CD13 43.6%, CD34 68.2%, HLA-DR 91.6%). He received intensive chemotherapy, but still sustained proliferation of blasts was noted . The follow up cytogenetic study was as follows: 46, XY, 4(3;21) (q26:22), t(9;22) (q34;q11)/46, XY, t(3;21)(q26;q22), del(8) (q22), t(9:22) (q34,q11)/46, XY (16/3/1). He died soon from severe pancytopenia and sepsis.
Blast Crisis*
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Bone Marrow
;
Bone Marrow Cells
;
Cytogenetics
;
Drug Therapy
;
Fever
;
Follow-Up Studies
;
Hemorrhage
;
HLA-DR Antigens
;
Humans
;
Hydroxyurea
;
Karyotype
;
Leukemia
;
Leukemia, Myelogenous, Chronic, BCR-ABL Positive*
;
Leukocytosis
;
Male
;
Middle Aged
;
Pancytopenia
;
Peroxidase
;
Sepsis
;
Splenomegaly
8.A Case of Sotos Syndrome.
In Seok KIM ; Joon Hee KIM ; Young Youn CHOI ; Jae Sook MA ; Tai Joo HWANG
Journal of the Korean Pediatric Society 1995;38(5):725-729
No abstract available.
Sotos Syndrome*
9.Analysis of 50 Cases of Renal Injury which Occurred in the Last 6 Years.
Bong Seok CHOI ; Jong Yoon PARK ; Jae Seog HYUN
Korean Journal of Urology 1997;38(5):490-495
In an effort to characterize the trend of renal injury of recent years, we reviewed the charts and x-ray films of 50 patients with renal trauma which occurred in the last 6 years. They were 42 males and 8 females with a mean age of 26.4 years (range: 5 to 66) and most of them are younger generation. The main causes of injury were related to falling down in 21 cases (42%) and traffic accident in 17 cases (34%), followed by stab injury in 7 cases and assault in 5 cases. The severity of renal injury was classified using the renal injury scale which was published by the Organ Injury Scaling (O.I.S.) Committee of the American Association for the Surgery of Trauma (A.A.S.T.) in 1989. According to radiologic and operative findings, they were classified as follows; Grade I, 4 cases; Grade II, 7 cases; Grade III, 12 cases; Grade IV, 23 cases; and Grade V, 4 cases. Of the 50 patients, 39 had gross hematuria and remaining 11 patients had microscopic hematuria. There was no correlation between the degree of hematuria and the severity of renal injury (p=0.098). The major combined other organ injuries were hemoperitoneum in 12 cases, fracture of extremities in 8 cases, liver laceration in 5 cases, hemopneumothorax in 4 cases and intestinal perforation in 2 cases. Surgical treatment was performed in 27 cases (54%) and the remaining 23 cases (46%) which were renal laceration of various degrees without intraperitoneal injuries were managed conservatively.
Accidents, Traffic
;
Extremities
;
Female
;
Hematuria
;
Hemoperitoneum
;
Hemopneumothorax
;
Humans
;
Intestinal Perforation
;
Kidney
;
Lacerations
;
Liver
;
Male
;
X-Ray Film
10.Clinical Results and Optical Quality of Diffractive Multifocal Intraocular Lens.
Journal of the Korean Ophthalmological Society 2015;56(12):1867-1873
PURPOSE: To compare postoperative clinical outcomes, optical quality, and patient satisfaction between two types of diffractive multifocal intraocular lens (IOL, Acri Lisa 366D and Acrysof ReSTOR +3.00 D). METHODS: In a total of 68 eyes, one of two diffractive multifocal IOL (Acri Lisa 366D and Acrysof ReSTOR +3.00 D) was implanted after cataract extraction. Visual acuity was measured postoperatively at one week, 1 month, and 6 months. Contrast sensitivity, wavefront aberration, and visual function were determined via questionnaire at postoperative 1 month. RESULTS: Intermediate visual acuity of Acri Lisa 366D and Acrysof ReSTOR at 6 months were 0.31 +/- 0.14, and 0.24 +/- 0.11 (log MAR), respectively. At 6 months, near and distant visual acuity results showed no significant differences between the two groups. The photopic contrast sensitivity of Acri Lisa 366D at 6 cycles/degree was 55.36 +/- 7.40 and showed significant differences with Acrysof ReSTOR (47.25 +/- 9.67). The mesopic contrast sensitivity values of Acri Lisa 366D and Acrysof ReSTOR were 40.26 +/- 11.38 and 28.97 +/- 10.45, respectively, and the spherical aberration values were 0.037 +/- 0.039 microm and 0.105 +/- 0.066 microm. The spherical aberration of Acri Lisa 366D was significantly lower than that of Acrysof ReSTOR. Total and high order aberration, coma, and trefoil show no significant differences between the two groups. CONCLUSIONS: The Acri Lisa 366D multifocal IOL showed better contrast sensitivity and spherical aberration compared to Acrysof ReSTOR multifocal IOL, which had an effective intermediate visual acuity.
Cataract Extraction
;
Coma
;
Contrast Sensitivity
;
Lenses, Intraocular*
;
Lotus
;
Patient Satisfaction
;
Visual Acuity