1.Transurethral Prostatectomy for the Patients Over 80 Years Old : Is It Safe?.
Tae Kyoon NA ; Dae Kyung KIM ; Tag Keun YOO
Korean Journal of Urology 2000;41(9):1086-1090
No abstract available.
Aged, 80 and over*
;
Humans
;
Transurethral Resection of Prostate*
2.The Effects of Extension Exercise in the Conservative Treatment of Lumbar Disc Herniations.
Hong Tae KIM ; Chan Hoon YOO ; Se Ang CHANG ; In Hak CHOI ; Keun Il LEE
The Journal of the Korean Orthopaedic Association 1997;32(7):1782-1788
In a conservative treatment of lumbar disc herniation, authors customarily had included the flexion exercise untill 1991. Thereafter, the extension exercise started to be included for the selected patients and this study was designed to assess the clinical outcome of the extension exercise compared to the flexion exercise in the conservative treatments of lumbar disc herniations. 55 consecutive patients (31 males and 24 females having ages ranging from 19-68 years with a mean of 37.2) were included in this prospective study. Criteria for inclusion in this group were: 1. Contained herniations of a single lumbar disc, documented by CT or MRI; 2. no other concurrent spine pathology; 3. conservative treatments with an uniform program including the extension exercise; 4. follow-up for a minimum of one year. For comparison with this prospective group, another 62 consecutive patients (36 males and 26 females having ages ranging from 17-63 years with a mean of 35.7) were selected who were treated during 1991 with flexion exercise before this study was designed and who were matched with the designed criteria except for the direction of exercise. Apart from the therapeutic exercise, the conservative treatments also included medication, physiotheraphy, epidural injection, and back school in the both groups uniformly. The clinical outcome of the extension exercise group indicated that 28 (50.9%) patients excellent, 23 (41.8%) patients good, three (5.5%) patients fair, and one (1.8%) patient failed outcomes. In the flexion exercise group, there were 23 (37.1%) excellent, 27 (43.5%) good, seven (11.3%) fair, and five (8.1%) failed outcomes. From these results, it would seem to follow that the extension exercise group had superior clinical outcome compared to the flexion exercise, i.e. higher excellent and good outcomes (92.7% vs. 80.6%) and lower poor and failed outcomes (7.3% vs. 19.4%), respectively, Moreover, the excellent outcome in terms of full recovery without any pain and disability was more common in the extension exercise group (50.9% vs. 37.1%). A better clinical outcome was obtained in the extension exercise group of patients who were younger than 40 years and who had a history of three months or less compared with those who were older and had longer history of disease. The sizes of disc protrusion did not affect the clinical outcome. In conclusion, we would recommend that the extension exercise, instead of the flexion exercise, should be included in the conservative treatment of a contained herniation of lumbar disc for a better clinical outcome.
Female
;
Follow-Up Studies
;
Humans
;
Injections, Epidural
;
Magnetic Resonance Imaging
;
Male
;
Pathology
;
Prospective Studies
;
Spine
3.Risk factor study of chronic otitis media in Korea : Results of a nation-wide survey.
Chong Sun KIM ; Ha Won JUNG ; Il Tae KANG ; Keun Young YOO
Korean Journal of Otolaryngology - Head and Neck Surgery 1993;36(5):841-847
No abstract available.
Korea*
;
Otitis Media*
;
Otitis*
;
Risk Factors*
4.Two Cases of Glassy Cell Carcionma of the Cervix, Treated by Neoadjuvant Chemotherapy and Radical Hysterectomy.
Yoon Keun HUR ; Woo Gyeong KIM ; Moon Cheol RYU ; Yoo Sun MIN ; Ki Tae KIM ; Hyun Chan KIM
Korean Journal of Gynecologic Oncology and Colposcopy 1994;5(4):29-35
Glassy cell carcinoma is a histologic subtype of cervical cancer with distinct pathologic features and it has an aggressive biologic course. It was first described by Glucksmann and Cherry in 1956 as a poorly differentiated adenoquamous carcinoma and commented on its poor prognosis, unresponsiveness to traditional modes of therapy, and often associated with pregnancy. The characteristic histologic features are defined as follows: 1) cells with a moderate amount of cytoplasm resembling ground glass, 2) a fairly distinct cell membrane that stains with eosin or PAS, 3) large nuclei with prominent nucleoli. We present two cases of glassy cell carcinoma of the cervix successfullyl treated by neoadjuvant chemotherapy and radical hyterectorny, with a brief review of literatures.
Cell Membrane
;
Cervix Uteri*
;
Coloring Agents
;
Cytoplasm
;
Drug Therapy*
;
Eosine Yellowish-(YS)
;
Female
;
Glass
;
Hysterectomy*
;
Pregnancy
;
Prognosis
;
Prunus
;
Uterine Cervical Neoplasms
5.A Case of Eosinophilic Granuloma with Recurrent Bacterial Meningitis associated with CSF Rhinorrhea.
Eung Deok CHOI ; Mee Kyung NAMGOONG ; Seung Ha YOO ; Baek Keun LIM ; Jong Soo KIM ; Tae Seung KIM
Journal of the Korean Pediatric Society 1986;29(2):91-96
No abstract available.
Eosinophilic Granuloma*
;
Eosinophils*
;
Meningitis, Bacterial*
6.Ureteroscopy under Intravenous Propofol Anesthesia for the Treatment of Middle and Upper Ureteral Calculi: Comparison with Lower Ureteral Calculi.
Jong Wook LEE ; Jeong Yun JEONG ; Tae Keun YOO
Korean Journal of Urology 2002;43(9):738-742
PURPOSE: Intravenous propofol anesthesia has been safely and effectively used in the ureteroscopic management of lower ureteral calculi. We investigated whether we can also use propofol anesthesia effectively for the treatment of middle and upper ureteral calculi. MATERIALS AND METHODS: We performed ureteroscopy with intravenous propofol anesthesia in 200 consecutive patients with ureteral calculi from July 1998 to December 2001. We divided them into 2 groups. Group 1 consisted of 59 patients, 48 men and 11 women, with upper and midureteral calculi, and group 2 consisted of 141 patients, 94 men and 47 women, with lower ureteral calculi. We compared safety, success rate, length of hospital stay and complication rate between the two groups. RESULTS: The overall success rate for ureteroscopy was 94.5% (189/200). Seven patients suffered perioperative complications, none of whom needed to change mode of anesthesia or remembered discomfort during the operation. In group 1, stone size, operation time and postoperative hospital stays were 7.5+/-3.2mm, 33.0+/-20.3 minutes and 1.9+/-1.0 days, respectively. The equivalent results were 6.2+/-2.9mm, 22.9+/-15.0 minutes and 1.4+/-0.9 days, respectively, in group 2. There were no significant differences in age, complication rate or success rate between the two groups. CONCLUSIONS: In patients with middle and upper ureteral calculi, ureteroscopic stone removal under intravenous propofol anesthesia can be performed safely and effectively without any significant increase in morbidity or patient discomfort.
Anesthesia*
;
Calculi
;
Female
;
Humans
;
Length of Stay
;
Male
;
Propofol*
;
Ureter*
;
Ureteral Calculi*
;
Ureteroscopy*
7.Rationale of Surgery in Locally Advanced and Oligometastatic Prostate Cancer.
Korean Journal of Urological Oncology 2016;14(3):97-108
There is no clear consensus for the best treatment of men with locally advanced prostate cancer. As a first step, radiation therapy or primary hormone therapy or radical prostatectomy with extended pelvic lymph node dissection is used. But it seems impossible to have a good oncologic result with single treatment modality. Traditionally, external beam radiation therapy with adjuvant hormone therapy is most preferred treatment method in locally advanced prostate cancer and radical prostatectomy has not been routinely used because of high rates of margin positive and lymph node metastasis. But, recently published articles showed that surgery in multimodal setting is effective treatment modality and not inferior to radiation therapy in oncologic outcomes. Perioperative morbidities of surgery and incontinence rates are similar to surgery of organ confined diseases, and patients with primary radiotherapy seem to have high rate of lower urinary tract symptoms and radiation related complications compared with radical prostatectomy with adjuvant radiotherapy. There is still controversy in regard to performing surgery for locally advanced prostate cancer. We review the studies with surgery in locally advanced prostate cancer and compare with radiation therapy in multimodal setting, and review the studies with surgery in oligometastatic prostate cancer.
Consensus
;
Humans
;
Lower Urinary Tract Symptoms
;
Lymph Node Excision
;
Lymph Nodes
;
Male
;
Methods
;
Neoplasm Metastasis
;
Prostate*
;
Prostatectomy
;
Prostatic Neoplasms*
;
Radiotherapy
;
Radiotherapy, Adjuvant
8.Comparison of Ocular Biometry and Refractive Outcomes Using IOL Master 700, IOL Master 500, and Ultrasound.
Tae Keun YOO ; Moon Jung CHOI ; Hyung Keun LEE ; Kyung Yul SEO ; Eung Kweon KIM ; Tae im KIM
Journal of the Korean Ophthalmological Society 2017;58(5):523-529
PURPOSE: To compare the new swept-source optical coherence tomography based IOL Master 700 to both the partial coherence interferometry based IOL Master 500 and ultrasound A-scan in terms of the ocular biometry and the prediction of postoperative refractive outcomes. METHODS: A total 67 eyes of 55 patients who received cataract surgery were included in our study. The axial length, anterior chamber depth, and keratometry were measured using IOL Master 700, IOL Master 500, and A-scan. The predictive errors, which are the differences between predictive refraction and post-operative refraction 1 month after surgery, were also compared. RESULTS: Axial length measurements were not successful in 5 eyes measured using IOL Master 700 and in 12 eyes measured using IOL Master 500. The mean absolute postoperative refraction predictive errors were 0.63 ± 0.50 diopters, 0.66 ± 0.51 diopters, and 0.62 ± 0.51 diopters for IOL Master 700, IOL Master 500, and A-scan, respectively, and these values exhibited no statistically significant differences. The mean axial lengths were 24.25 ± 2.41 mm, 24.24 ± 2.40 mm, and 24.22 ± 2.39 mm; the mean anterior chamber depths were 3.09 ± 0.39 mm, 3.17 ± 0.39 mm, and 3.15 ± 0.46 mm; and the mean keratometry values were 44.12 ± 1.82 diopters, 44.57 ± 2.10 diopters, and 43.98 ± 1.84 diopters for the IOL Master 700, IOL Master 500, and A-scan groups, respectively. None of these parameters showed statistically significant differences between the three groups. Regarding pair-wise comparison, there were significant differences between the IOL Master 700 and the other devices. CONCLUSIONS: The ocular biometric measurements measured using IOL Master 700, IOL Master 500, and A-scan showed no significant differences. However, IOL Master 700 demonstrated a superior ability to successfully take biometric measurements compared to IOL Master 500. Therefore, IOL Master 700 is capable of measuring ocular biometry for cataract surgery in clinical practice.
Anterior Chamber
;
Biometry*
;
Cataract
;
Humans
;
Interferometry
;
Lenses, Intraocular
;
Tomography, Optical Coherence
;
Ultrasonography*
9.Osteoporosis Risk Prediction for Bone Mineral Density Assessment of Postmenopausal Women Using Machine Learning.
Tae Keun YOO ; Sung Kean KIM ; Deok Won KIM ; Joon Yul CHOI ; Wan Hyung LEE ; Ein OH ; Eun Cheol PARK
Yonsei Medical Journal 2013;54(6):1321-1330
PURPOSE: A number of clinical decision tools for osteoporosis risk assessment have been developed to select postmenopausal women for the measurement of bone mineral density. We developed and validated machine learning models with the aim of more accurately identifying the risk of osteoporosis in postmenopausal women compared to the ability of conventional clinical decision tools. MATERIALS AND METHODS: We collected medical records from Korean postmenopausal women based on the Korea National Health and Nutrition Examination Surveys. The training data set was used to construct models based on popular machine learning algorithms such as support vector machines (SVM), random forests, artificial neural networks (ANN), and logistic regression (LR) based on simple surveys. The machine learning models were compared to four conventional clinical decision tools: osteoporosis self-assessment tool (OST), osteoporosis risk assessment instrument (ORAI), simple calculated osteoporosis risk estimation (SCORE), and osteoporosis index of risk (OSIRIS). RESULTS: SVM had significantly better area under the curve (AUC) of the receiver operating characteristic than ANN, LR, OST, ORAI, SCORE, and OSIRIS for the training set. SVM predicted osteoporosis risk with an AUC of 0.827, accuracy of 76.7%, sensitivity of 77.8%, and specificity of 76.0% at total hip, femoral neck, or lumbar spine for the testing set. The significant factors selected by SVM were age, height, weight, body mass index, duration of menopause, duration of breast feeding, estrogen therapy, hyperlipidemia, hypertension, osteoarthritis, and diabetes mellitus. CONCLUSION: Considering various predictors associated with low bone density, the machine learning methods may be effective tools for identifying postmenopausal women at high risk for osteoporosis.
Aged
;
*Artificial Intelligence
;
Bone Density/*physiology
;
Female
;
Humans
;
Middle Aged
;
Osteoporosis, Postmenopausal
10.Nationwide Incidence Estimation of Uterine Cervix Cancer among Korean Women.
Byung Joo PARK ; Moo Song LEE ; Yoon Ok AHN ; Young Min CHOI ; Yeong Su JU ; Keun Young YOO ; Hun KIM ; Ha Seung YEW ; Tae Soo PARK
Korean Journal of Preventive Medicine 1996;29(4):843-852
To estimate the incidence of uterine cervix cancer among Korean women, we have conducted a study using the claim data on the beneficiaries of Korea Medical Insurance Corporation(KMIC). All medical records of the potential cases with diagnosis of ICD-9 180, 181, 182, 199, 219, 233 in the claims sent by medical care institutions in the whole country to the KMIC from January 1988 to December 1989, were abstracted and Gynecology specialist reviewed the records to identify the new cases of uterine cervix cancer among the potential cases during the corresponding period. Using these data, the incidence of uterine cervix cancer among Korean women was estimated as of July 1, 1988 to June 30, 1989. The crude rate was estimated to be 17.34(95% CI: 16.76~17.92) per 100,000 and the cumulative rates for the ages 0~64 and 0~74 were 1.7% and 2.2%, respectively. The age-adjusted rate for the world population was 19.93 per 100,000 which was higher than those of other Asian countries including China and Japan in 1983~1987. The truncated rate for ages 35~64 was 52.05 per 100,000 which was one of the highest in the world. With increasing age, the incidence rate increased to 78.11 per 100,000 in women aged 55~59 years, then it decreased in the older groups. This finding suggests that detecting rate of uterine cervix cancer may decrease in women aged 60 years or older due to detecting rate of uterine cervix cancer may decrease in women aged 60 years or older due to inadequate medical care seeking behavior. In the geographical area, the SIR of Jeju province was significantly low but it might be due to statistical unstability by small case numbers.
Asian Continental Ancestry Group
;
Cervix Uteri*
;
China
;
Diagnosis
;
Epidemiology
;
Female
;
Gynecology
;
Humans
;
Incidence*
;
Insurance
;
International Classification of Diseases
;
Japan
;
Korea
;
Medical Records
;
Specialization