1.A Comparative Study of Visual Internal Urethrotomy and Perineal Urethroplasty in the Treatment of Posttraumatic Urethral Strictures.
Young Seok CHOI ; Joon RHO ; Dae Su JANG
Korean Journal of Urology 1995;36(10):1135-1141
The outcomes of treatment of 31 patients who were managed by single visual internal urethrotomy were compared with those of 25 patients managed by perineal urethroplasty to asses whether the replacement of almost urethroplasty by the simpler urethrotomy was justified. The overall successful results were achieved in 51.6% of visual internal urethrotomy and 76%, of urethroplasty. Patients with anterior urethral strictures more than 1 cm long or completely obliterated strictures had higher failure rates in the visual internal urethrotomy than urethroplasty (p<0.05). The morbidity rates were 9.6% in the visual internal urethrotomy and 24% in the urethroplasty. We recommend that visual internal urethrotomy be reserved for patients with urethral strictures 1 cm or less in length and posterior urethral stricture which is supposed to have a high recurrence rate since the procedure is simple and it does not compromise asecondary urethroplasty.
Constriction, Pathologic
;
Equidae
;
Humans
;
Recurrence
;
Urethral Stricture*
2.Comparison of the Corneal Astigmatism Between Suture Methods After 7mm Scleral Pocket Incision Catartact Surgery.
Kyung Hun LEE ; Dae Young YOON ; Seung Hun RHO
Journal of the Korean Ophthalmological Society 1991;32(12):1068-1075
Most of cataract surgeons have made a great effort to minimize or nullify corneal 'astigmatism resulted from the incision and closure, but a completely ideal wound system still eludes us. The scleral pocket incision and continuous single knotted shoelace suture of it has been known as one of the technique for reducing postoperative astigmatism. Recently, horizontal suture closure of scleral pocket incisior has been introduced because it doesn't cause suture induced wound compression. We implanted standard PMMA intraocular lenses in the bag of 400 patients through 7mm scleral pocket incision following CCC (continuous circular capsulorhexis) and bimanual phacoemulsification. The incision was closed with either the shoelace or horizontal suture. The keratometric measurement was maded at postoperative 1 day, 1 week, 1 month, 2 month, 3 month and 6 month. In shoelace suture group, the preoperative corneal astigmatism appeared -0.14 +/- 0.15D of with the rule astigmatism (WTR); at one day postoperatively -2.75 +/- 1.61 of WTR, at 3 month 0.18 +/- 1.14D of against the rule astigmatism (ATR), 6 month 0.3 +/- 1.22D of ATR. In horizontal suture group, the preoperative corneal astigmatism appeared -0.22 +/- 1.22D of WTR; at one day postoperatively -1.05 +/- 1.28 of WTR, at 2 month 0.57 +/- 1.0 of ATR, at 6 month 0.72 +/- 1.91 of ATR. The difference between two suture methods was statistically significant (p<0.01 until 3 month, p<0.05 until 3-6 month).
Astigmatism*
;
Cataract
;
Humans
;
Lenses, Intraocular
;
Phacoemulsification
;
Polymethyl Methacrylate
;
Sutures*
;
Wounds and Injuries
3.A Comparison of Screening and N-30 Mode in Frequency Doubling Technology Perimetry.
Chan Yun KIM ; Dae Rho NA ; Young Jae HONG
Journal of the Korean Ophthalmological Society 2000;41(8):1753-1759
FDT is known as a comfortable and convenient device, and there was no restriction in pupil size and refractive error within 7 diopters.To compare the effectiveness of secreening and N-30 mode in FDT, new field analyzer. Twenty-three POAG or ocular hypertension patients(43 eyes)were included in this study. All subjects underwent FDT screening and N-30 15 minutes apart on same day within 1 month after HFA C30-2 test. Mean age of the subjects was 49.77+/-11.61 years. Fifteen men and nine woman were included in this study. Test duration was 52.3+/-6.2 seconds with FDT screening, 5.46+/-0.32 minutes with FDT N-30, and 14.46+/-1.88 minutes with HFA C30-2.In global indexes MD and PSD of FDT N-30 were well correlated with MD, PSD, and CPSD of HFA C30-2 respectively(p<0.01). In diagnosing glaucoma, sensitivity of FDT screening and N-30 was 75% and 88%respectively, and specificity of screening and N-30 was 94%and 82%respectively. In detecting defect in each test location, sensitivity of FDT screening and N-30 was 68.6%and 81.6%respectively, and specificity of screening and N-30 was 94.5%and 83.8%respectively. FDT N-30 mode appears to be superior to FDT screening mode in screening and diagnosing glaucoma as there are high correlation with HFA C30-2, good sensitivity, and specificity inspite of longer test duration.
Female
;
Glaucoma
;
Humans
;
Male
;
Mass Screening*
;
Ocular Hypertension
;
Pupil
;
Refractive Errors
;
Sensitivity and Specificity
;
Visual Field Tests*
4.Treatment of upper ureteral stone with ESWL: push back effect.
Do Young PARK ; Joon RHO ; Chul Sung KIM ; Dae Soo CHANG
Korean Journal of Urology 1991;32(6):955-959
Extracorporeal shock wave lithotripsy (ESWL) was performed in 122 patients with upper ureteral calculi managed by 3 different techniques ; ESWL in situ. after push back and after placement of push back ureteral catheter below the stone in patients of failure to push back. To investigate the push back effect for upper ureteral stone, we reviewed 3 different treatment modalities. Of 122 patients push back was performed in 54 patients, which was successful in 27 patients (50%). The success rate of ESWL and the number of total average shock waves were 100%, 1667 waves in successful push back patients. 98.5%. 3007 waves in situ treatment and 88.9%, 4133 waves in patients of failure to push back. Complications of push back were infrequent, with the most common being ureteral perforation in 2 patients. all of which were managed conservatively. Push back of upper ureteral calculi improved success rate of ESWL and reduced significantly the number of average shock Waves.
Humans
;
Lithotripsy
;
Shock
;
Ureter*
;
Ureteral Calculi
;
Urinary Catheters
5.A Case Report of Correction of Mandibular Prognathism by Intraoral Oblique Splitting Osteotomy of Mandibular Rami.
Hui Dae PARK ; Kee Young DOE ; Yun Ho BAE ; Sang Kill BYUN ; Byung Rho CHIN ; Hee Keung LEE
Yeungnam University Journal of Medicine 1989;6(2):183-194
This is a report of 2-cases of mandibular prognathism corrected by Intraoral oblique splitting osteotomy of mandibular rami. The Intraoral oblique splitting osteotomy is a modification of sagittal split osteotomy of ramus and it is documented by Yoshida, on 1985. By this method, authors obtained the following results. 1. The patients' esthetic, psychological and functional problems were dissolved by setback of mandibular prognathism. 2. The postoperative infection splitted bone segments fracture, paresthesia of the face and T.M.J. dysfunction were not appeared. 3. Postoperative intermaxillary fixation was maintained for 8 weeks. The patients could open their mouths in normal range after a week of intermaxillary fixation removal. 4. The soft tissue changes of lower lip and chin were about 1:1 to the hard tissue changes. 5. During intermaxillary fixation period and postoperative orthodontic treatment, slight relapse was observed. Now, the patients are under postoperative orthodontic treatment.
Chin
;
Humans
;
Lip
;
Methods
;
Mouth
;
Osteotomy*
;
Paresthesia
;
Prognathism*
;
Recurrence
;
Reference Values
6.A case of Benign Cystic Peritoneal Mesothelioma in a Male Fetus.
Hyun Sun KO ; Dae Ho KANG ; Jee Hyun LEE ; Hee Bong MOON ; Seung Hye RHO ; Eun Jung BAIK ; Dae Young CHUNG ; Jong Chul SHIN ; Soo Pyg KIM
Korean Journal of Obstetrics and Gynecology 2000;43(10):1879-1883
No abstract available.
Fetus*
;
Humans
;
Male*
;
Mesothelioma*
7.Nonobstructive Right Retrocaval Ureter Associated with Double Inferior Vena Cava.
Jong Seon YOON ; Dae Jin JEONG ; Hye Su PARK ; Joon RHO ; Do Young PARK ; Chul Seong KIM ; Dae Soo CHANG
Korean Journal of Urology 1997;38(1):106-109
Retrocaval ureter is a rare congenital anomaly. We experienced a case of retrocaval ureter with double inferior vena cava and with intermittent right flank pain in 54 years old female. We performed IVU, RGP, Venacavogram, MRI, and diuretic DTPA renal scan. MRI is the best single study to delineate the anatomy clearly and noninvasively. She was treated with conservative treatment.
Female
;
Flank Pain
;
Humans
;
Magnetic Resonance Imaging
;
Middle Aged
;
Pentetic Acid
;
Retrocaval Ureter*
;
Vena Cava, Inferior*
8.A Case of Vesical Endometriosis.
Young Seog SO ; Dae Jin JUNG ; Hee Su PARK ; Joon RHO ; Chul Sung KIM ; Dae soo JANG
Korean Journal of Urology 1997;38(4):434-436
Endometriosis is defined as the presence of endometrial tissue (gland and stroma) outside the uterus. The most frequent sites of implantation are the pelvic viscera and the peritoneum. About 1% of woman with endometriosis have urinary tract lesions, of which 85% involve the bladder. We report one case of vesical endometriosis that have been treated by partial cystectomy.
Cystectomy
;
Endometriosis*
;
Female
;
Humans
;
Peritoneum
;
Urinary Bladder
;
Urinary Tract
;
Uterus
;
Viscera
9.The Usefulness of Three-Dimensional Imaging with Spiral CT in the Evaluation of Upper Airway Stenosis.
Won Ho JANG ; Dae Young YOON ; Sang Hoon BAE ; Young Soo RHO ; Yin Gyo JUNG
Journal of the Korean Radiological Society 1996;35(6):863-868
PURPOSE: To assess the usefulness of three-dimensional (3D) spiral CT imaging in patients with upper airway stenosis. MATERIALS AND METHODS: We performed 3D spiral CT imagings in ten patients in whom upper airway stenosis was clinically suspected. Eight of these patients had upper airway stenosis caused by intubation or tracheostomy(n=6), tuberculosis (n=1), or extrinsic compression by a thyroid mass (n=1). Spiral CT scanning(30-second continuous exposure and 90-mm length) was performed with a table speed of 3mm/sec and a section thickness of 3mm.The selected starting point was the epiglottis. The resulting data were reformatted by multiplanar reformation(MPR) and shaded surface display (SSD) with peeling after reconstruction of 2mm interval. In the evaluation oflocation and extent of stenosis, we compared fidings of 3D imaging with those of baseline axial images (n=10), endoscopy (n=9) and operation (n=4). RESULTS: The locations of stenosis in eight patients were as follows: tracheostoma (n=4), subglottic region (n=3), and larynx (n=1). In all eight patients, 3D imaging demonstrated the location and extent of stenosis, which exactly correlated with endoscopic and operative findings. In one patient, however, another stenotic area in the tracheal bifurcation was not discovered because this lesion was not includedin the field of CT scan. In two patients, the diagnosis on 3D images of 'no stenosis' was comfirmed by clinical findings or operation. No differences in diagnostic accuracy were noted between axial images, MPR, and SSD when evalvating the location and extent of stenosis ; vertical extent was shown more easily by 3D imaging than by axialimages, however. CONCLUSION: 3D imaging with spiral CT may be an useful adjunctive method in the evaluation of upper airway stenosis with variable causes.
Constriction, Pathologic*
;
Diagnosis
;
Epiglottis
;
Humans
;
Imaging, Three-Dimensional*
;
Intubation
;
Larynx
;
Silver Sulfadiazine
;
Thyroid Gland
;
Tomography, Spiral Computed*
;
Tomography, X-Ray Computed
;
Tuberculosis
10.Information System Success Model for Customer Relationship Management System in Health Promotion Centers.
Wona CHOI ; Mi Jung RHO ; Jiyun PARK ; Kwang Jum KIM ; Young Dae KWON ; In Young CHOI
Healthcare Informatics Research 2013;19(2):110-120
OBJECTIVES: Intensified competitiveness in the healthcare industry has increased the number of healthcare centers and propelled the introduction of customer relationship management (CRM) systems to meet diverse customer demands. This study aimed to develop the information system success model of the CRM system by investigating previously proposed indicators within the model. METHODS: The evaluation areas of the CRM system includes three areas: the system characteristics area (system quality, information quality, and service quality), the user area (perceived usefulness and user satisfaction), and the performance area (personal performance and organizational performance). Detailed evaluation criteria of the three areas were developed, and its validity was verified by a survey administered to CRM system users in 13 nationwide health promotion centers. The survey data were analyzed by the structural equation modeling method, and the results confirmed that the model is feasible. RESULTS: Information quality and service quality showed a statistically significant relationship with perceived usefulness and user satisfaction. Consequently, the perceived usefulness and user satisfaction had significant influence on individual performance as well as an indirect influence on organizational performance. CONCLUSIONS: This study extends the research area on information success from general information systems to CRM systems in health promotion centers applying a previous information success model. This lays a foundation for evaluating health promotion center systems and provides a useful guide for successful implementation of hospital CRM systems.
Delivery of Health Care
;
Health Care Sector
;
Health Information Management
;
Health Promotion
;
Information Systems
;
Medical Informatics