1.A study on fracture strength and color by the design of metal coping in ceramo metal crown.
Myung Ho LEE ; Young Chan JEON
The Journal of Korean Academy of Prosthodontics 1992;30(1):103-124
No abstract available.
Crowns*
2.A case of Paget's disease of the vulva.
Young Ho PARK ; Myeong Soon JEON ; Chul Hee YOON
Korean Journal of Obstetrics and Gynecology 1993;36(7):1687-1689
No abstract available.
Vulva*
3.Femoral Neck Fracture in Young Adult: 25 Cases Treated with Multiple Pinning
Hyung Ku YOON ; Kwang Pyo JEON ; Dae Eun JUNG ; Ho Seung JEON ; Dae Young JANG
The Journal of the Korean Orthopaedic Association 1996;31(2):235-246
In general. femoral neck fracture in young adult presents poor prognosis due to the high velocity injury, high angle shear fracture, and poor candidate for arthroplasty. In addition to the relative rarity of the injury, the high incidence of aseptic necrosis and nonunion have been reported in the management of these fractures. 25 cases of femoral neck fracture in young adult were treated with multiple pinning and analyzed at Sung-Ae general hospital from 1987 to 1994 after 28 months follow up in average with review of charts, X-ray and clinical result. There were 18 male and 7 female, 5 cases of them had significant polytrauma to other organs or skeletal system, authors tried to treat them as soon as possible to decrease the interval time between fracture and fixation (the average time was 39.7 hours.) Union occurred in all of Garden stage I (4 cases) and II (4 cases), but in Garden stage III (7 among 8 cases) and IV (7 among 9 cases) the union rate was lower. Average union time was 16.5 weeks. The incidence of complications (12%, 3 among 25 cases) was higher in displaced fractures group (Garden stage III, IV) and also in poorly reduced group of Garden’s alignment index. In conclusion, the prognosis of femoral neck fractures in young adult was related with mainly initial reduction and rigid fixation than the initial injury.
Agriculture
;
Arthroplasty
;
Female
;
Femoral Neck Fractures
;
Femur Neck
;
Follow-Up Studies
;
Hospitals, General
;
Humans
;
Incidence
;
Male
;
Multiple Trauma
;
Necrosis
;
Prognosis
;
Young Adult
4.A case of leiomyosarcoma of the broad ligament.
Young Ho JEONG ; Dong Ho JEON ; Eu Sun RO ; Yong Pil KIM ; Sun Uk KWON
Korean Journal of Obstetrics and Gynecology 1991;34(8):1166-1172
No abstract available.
Broad Ligament*
;
Female
;
Leiomyosarcoma*
5.A Case of Congenital Anterior Urethral Diverticulum.
Young Ho LEE ; Gyu Jeon SONG ; Woo Yeong CHUNG ; Moo Young OH ; Soon Yong LEE
Journal of the Korean Pediatric Society 1987;30(4):431-434
No abstract available.
Diverticulum*
6.Whole Layer Photocoagulation on the Rabbit Retina with Indirect Diode Laser Ophthalmoscopy.
Young Ho JEON ; Woo Chul CHOI ; Young Suk YU
Journal of the Korean Ophthalmological Society 1998;39(10):2385-2392
In the treatment of retinopathy of prematurity, it is necessary to coagulate retina including inner retinal layer to achieve regression. However, diode laser has long wavelength, thus damage to bruch`s membrane or choroid can occur when one attempts to coagulate whole retinal layers. We evaluated whether or not we could coagulate whole retinal layer without damage to Bruch`s membrane or choroid in rabbit eyes with indirect diode laser ophthalmoscopy. We palaced laser spots on retina of pigmented rabbits with various laser powers(150, 300, 500mW) and durations(0.3, 0.5, 1.0 second). Fundus photographs were taken immediately after photocoagulation. then we took fundus photographs and enucleated the eyes at one day, one week, 3 weeks, and 5 weeks after photocoagulation to perform pathologic examination. With laser setting of 150mW and 0.3 second, the coagulated retina revealed damaged outer layer but inner retinal layer was spared. We could coagulate whole retinal layer without any damage to Bruch`s membrane or choroid with laser power of 300mW and 0.3 second duration. In 300mW, 0.5 second laser burns and 500mW, 0.3 second burns, internal limiting membrane remained intact while Bruch`s membrane and whole retinal layers were damaged We found whole layer rabbit retina could be coagulated without damage to Bruch`s membrane and choriocapillaries with indirect diode laser opthalmoscopy. and we think it would be necessary to adjust laser power and duration in clinical situation to minimize possible deep tissue injury by diode laser.
Burns
;
Choroid
;
Lasers, Semiconductor*
;
Light Coagulation*
;
Membranes
;
Ophthalmoscopy*
;
Rabbits
;
Retina*
;
Retinaldehyde
;
Retinopathy of Prematurity
7.Determinants of Left Ventricular Mass in Healthy Adults : A Study Using Echocardiography and 24 Hour Ambulatory Blood Pressure Monitoring.
Ho Choon JEON ; Young Kwon KIM ; Kyeong Young KIM ; Ji Young KIM ; Sung Eun CHA ; Seong Wook CHO ; In SOHN
Korean Circulation Journal 1995;25(4):811-819
BACKGROUND: Echocardiographically detected left ventricular(LV) hypertrophy is a risk factor for cardiovascular morbidity and mortality. A better understanding of the determinants of LV mass may aid in strategies directed toward the promary and secondary prevention of LV hypertrophy and its consequences. Previous studies have reported that male gender, arterial blood pressure(BP), obesity, age, aortic valvular stenosis, dietary sodium, endocrine factors, and physical activity are positively correlated with LV mass. Of these determinants male gender, hypertension, and obesity are well known but age and blood pressure in healthy adults are controversial. To assess the determinants of LV mass, the relation of 2-dimensional(2D) echocardiographically determined LV mass to body mass inedx(BMI), age, sex, casual BP, and 24 hour ambulatory blood pressure(ABP : systolic, diastolic, and mean BP of 24 hour, day-time, and night-time) was examined in healthy adults. METHODS: The study population consisted of 200 healthy adults who were normotensive, nonobese, and had no evidence of cardiovascular disease(range in age from 20 to 69 years, five decades, 20 men and 20 women per each decade). LV mass was derived from area length method measurements obtained by 2D echocardiography and corrected for height. ABP monitoring was performend over 24 hour(divided into day-time(6am-10pm) and night-time(10pm-6am)periods) with 30 minute inervals. RESULTS: 1) BMI was significantly and independently related to LV mass corrected for height (p<0.001, partial R2=0.31 in men and 0.43 in women). An increase of BMI by 1 kg/m2increased LV mass corrected for height by 1.9g/m in men and 2.0g/m in women. 2) Age was significantly and independently related to LV mass corrected for height(p<0.001, partial R2=0.15 in men and 0.17 in women). The increments of Lv mass corrected for height per decade were 2.1 g/m in men and 3.4 g/m in women. 3) Gender was significantly and independently related to LV mass corrected for height(p<0.001, partial R2=0.12), which was greater in men than in women by 6.34g/m. 4) Casual Bp and 24 hour ABP were not significantly associated with LV mass corrected for height in total population and women, and 24 hour systolic BP was significantly related to LV mass corrected for height only in men(p<0.001) with weak partial R2(0.05). CONCLUSION: BMI, age, and male gender were statistically significant and independent correlates of LV mass corrected for height(p<0.001). Maintenance of ideal body weight and normal BP, weight reduction in obese persons and BP control inhypertensive patients may contribute to the primary and secondary prevention of LV hypertrophy and its sequalae.
Adult*
;
Blood Pressure
;
Blood Pressure Monitoring, Ambulatory*
;
Constriction, Pathologic
;
Echocardiography*
;
Female
;
Humans
;
Hypertension
;
Hypertrophy
;
Ideal Body Weight
;
Male
;
Mortality
;
Motor Activity
;
Obesity
;
Risk Factors
;
Secondary Prevention
;
Sodium, Dietary
;
Weight Loss
8.CT Evaluation of Mechanical Intestinal Obstruction.
Ho Kyun KIM ; Young Tong KIM ; Sung Tag HAN ; Jeong Dong JEON
Journal of the Korean Radiological Society 1994;31(5):907-913
PURPOSE: To evaluate the usefulness of CT for the diagnosis and treatment planning of mechanical intestinal obstruction. MATERIALS AND METHODS: We retrospectively reviewed 38 patients who were clinically suspected of mechanical intestinal obstruction and had undergone abdominal CT. The CT scans were evaluated for the absence or presence, severity, cause and site of intestinal obstruction. CT findings were compared with the results of laparotomy, barium study and clinical course. The absence or presence and severity of intestinal obstruction were classified into no obstruction, partial obstruction, complete obstruction. Diagnosis was estabilished by means of laparotomy in 20 cases, barium study in 9 cases and clinical course in 9 cases. RESULTS: Of 38 cases, 7(18.4%) showed no obstruction, 22(57.9%) showed partial obstruction, and 9(23.7%) showed complete obstruction. The presence or absence and severity on CT scans were corretly predicted in 36 of 38 cases (sensitivity 95%, specificity 97%, accuracy 96%) (in case of no obstruction:sensitivity 100%, specificity 94%, accuracy 95%;in case of partial obstruction:sensitivity 91%, specificity 100%, accuracy 95%;in case of complete obstruction:sensitivity 100%, specificity 100%, accuracy 100%). All 9 cases with complete obstruction underwent prompt and immediate laparotomy. 13 cases, excluding those with mass around the site of transition and adhesion with strangulation, with partial obstruction improved with conservative treatment without laparotomy. The causes of obstruction were adhesion in 13, hernia in 6, primary cancer in 5, metastatic cancer in 3, abscess in 2, intestinal tbc in 1, and Crohn's disease in 1. The cause of obstruction on CT scans were correctly predicted in 27 of 31 cases (87.1%). The sites of obstruction on CT scans were correctly predicted in 22 of 26 cases (84.6%). CONCLUSION: CT is valuable in the evaluation of absence or presence, severity, cause and site of intestinal obstruction, and is considered to be helpful in treatment planning for the patients with intestinal obstruction.
Abscess
;
Barium
;
Crohn Disease
;
Diagnosis
;
Hernia
;
Humans
;
Intestinal Obstruction*
;
Laparotomy
;
Retrospective Studies
;
Sensitivity and Specificity
;
Tomography, X-Ray Computed
9.A Case of Metastatic Uterine Cervical Carcinma of the Orbit.
Young Ho JEON ; Jung Chul SHIN ; Dong Seob KIM
Journal of the Korean Ophthalmological Society 1998;39(11):2822-2826
In adults, it is known that tetastatic tumor to the eye and its adnexa is rare compared with other sites. Orbital tumors can be classified as primary, secondary, and metastatic. Secondary orbital tumors are those that extend to the orbit from a contiguous structure. Metastatic tumors are those that spread to the orbit from more distant site in the body. and their prognosis for life is poor because of widespread systemic malignancy. We experienced a case of metastatic uterine cervical carcinoma of the orbit in a 33-year-old female patient who came to us with a history of sudden proptosis and decreased vision. Eighteen months earlier, the patient had been diagnosed with squamous cell carcinoma of the uterine cervix, and she had undergone chemotherapy, irradiation and surgical intervention. Lung and parametrium metastases were also found six months previously. We report a case of metastatic uterine cervical cancer of the orbit with a review of the literature.
Adult
;
Carcinoma, Squamous Cell
;
Cervix Uteri
;
Drug Therapy
;
Exophthalmos
;
Female
;
Humans
;
Lung
;
Neoplasm Metastasis
;
Orbit*
;
Prognosis
;
Uterine Cervical Neoplasms
10.Dilated Pore Nevus.
Su Young JEON ; Seung Min HA ; Dong Yeob KO ; Ki Hoon SONG ; Ki Ho KIM
Korean Journal of Dermatology 2012;50(11):1009-1010
No abstract available.
Nevus