No abstract available.
Humans ; Infant* ; Infant, Newborn* ; Reference Values*

No abstract available.
Animals ; Gene Expression* ; Genes, Immediate-Early* ; Rats*

The Graf stabilization has been introduced in treating lumbar spinal disorder associated with posterior instability. This study reviewed some problems of the Graf instrumentation as a soft stabilizer. The purpose of this study is to analyse the problems of the soft stabilization in spinal instability. We reviewed 145 cases which were operative treatment using the Graf instrument for lumbar spinal disorder associated with posterior instability at our department from May, 1991 to Dec, 1995. The mean follow up periods was 29 months ranging from 24 months to 6 years 8 months. Of the 145 cases, 22 cases were showed the problem. The diagnostic method were simple x-ray, flexion-extension lateral stress view and CT scan. Results were as follows : Adjacent segmental instability was 10 cases(6.9%), disc space narrowing was 8 cases(5.5%), screw loosening was 3 cases(2.1%) and breakage of the Graf band was 1 case(0.6%). The problems of the soft stabilization were adjacent segmental instability, disc space narrowing, screw loosening, and breakage of the Graf band. But the rate of adjacent segmental instability and disc space narrowing was lower than other lumbar spinal instrumentation.
Follow-Up Studies ; Tomography, X-Ray Computed

PURPOSE: This study evaluated the initial stability of different implants placed above the bone level in different types of bone. MATERIALS AND METHODS: As described by Lekholm and Zarb, cortical layers of bovine bone specimens were trimmed to a thickness of 2 mm, 1 mm or totally removed to reproduce bone types II, III, and IV respectively. Three Implant system (Branemark System(R) Mk III TiUnite(TM), Straumann Standard Implant SLA(R), and Astra Tech Microthread(TM)-OsseoSpeed(TM)) were tested. Control group implants were placed in level with the bone, while test group implants were placed 1, 2, 3, and 4 mm above the bone level. Initial stability was evaluated by resonance frequency analysis. Data was statistically analyzed by one-way analysis of variance in confidence level of 95%. The effective implant length and the Implant Stability Quotient (ISQ) were compared using simple linear regression analysis. RESULTS: In the control group, there was a significant difference in the ISQ values of the 3 implants in bone types III and IV (P<.05). The ISQ values of each implant decreased with increased effective implant length in all types of bone. In type II bone, the decrease in ISQ value per 1-mm increase in effective implant length of the Branemark and Astra implants was less than that of the Straumann implant. In bone types III and IV, this value in the Astra implant was less than that in the other 2 implants. CONCLUSION: The initial stability was much affected by the implant design in bone types III, IV and the implant design such as the short pitch interval was beneficial to the initial stability of implants placed above the bone level.
Linear Models

PURPOSE: The objective of this study was to investigate the effects of calcium phosphate coated titanium implant surface on bone response and implant stability at early stage of healing period of 3 weeks and later healing period of 6 weeks. MATERIAL AND METHODS: A total of 24 machined, screw-shaped implants (Dentium Co., Ltd., Seoul, Korea) which dimensions were 3.3 mm in diameter and 5.0 mm in length, were used in this research. All implants (n = 24), made of commercially pure (grade IV) titanium, were divided into 2 groups. Twelve implants (n = 12) were machined without any surface modification (control). The test implants (n = 12) were anodized and coated with thin film (150 nm) of calcium phosphate by electron-beam deposition. The implants were placed on the proximal surface of the rabbit tibiae. The bone to implant contact (BIC) ratios was evaluated after 3 and 6 weeks of implant insertion. RESULTS: The BIC percentage of calcium phosphate coated implants (70.8 +/- 18.9%) was significantly higher than that of machined implants (44.1 +/- 16.5%) 3 weeks after implant insertion (P = 0.0264). However, there was no significant difference between the groups after 6 weeks of healing (P > .05). CONCLUSION: The histomorphometric evaluation of implant surface revealed that: 1. After 3 weeks early healing period, bone to implant contact (BIC) percentage of calcium phosphate coated implants (70.8%) was much greater than that of surface untreated machined implants (44.1%) with P = 0.0264. 2. After 6 weeks healing period, however, BIC percentage of calcium phosphate coated implants group (79.0%) was similar to the machined only implant group (78.6%). There was no statistical difference between two groups (P = 0.8074). 3. We found the significant deference between the control group and experimental group during the early healing period of 3 weeks. But no statistical difference was found between two groups during the later of 6 weeks.
Calcium ; Calcium Phosphates ; Nitrogen Mustard Compounds ; Tibia ; Titanium

No abstract available.
Hepatitis B Surface Antigens* ; Humans ; Prevalence*

Until recently, the cervical pregnancy have been treated with surgery, usually hy- sterectomy, because of uncontrollable heavy vaginal bleeding. The development of sophisticated ultrasound which allows early diagnosis of cervical pregnancy and methotrexate chemotherapy opened up new therapeutic options in the management of this unusual but potentially life threatening complication of pregnancy which have been always a nightrnare for the gynecologist. We are reporting a case of cervical pregnancy diagnosed in 12 weeks of gestation. The patient was successfully treated with alternative administration of methotrexate (1 mg/kg, intramuscularly) and leucovorin (0.1 mg/kg, intramuscularly) without surgical intervention, in order to preserve both the uterus and fertility. Follow up was done with serum beta hCG and pelvic ultrasonography. Complete resolution of the cervical pregnancy was obtained at 50 days after starting methotrexate treatment. This case gave us the opportunity to review the recent literature on cervical pregnancy.
Drug Therapy ; Early Diagnosis ; Fertility ; Follow-Up Studies ; Humans ; Leucovorin* ; Methotrexate* ; Pregnancy* ; Ultrasonography ; Uterine Hemorrhage ; Uterus

Running for a long distance in runners with exercise-induced hypertension (EIH) increases high blood pressure (BP) which causes myocardial burden, inducing elevation of cardiac markers. It is assumed to be associated with endothelial dysfunction, but has not been studied so far. The purpose of this study is to exam the responses of anti-inflammatory, inflammatory, and endothelial regulation factors to 100 km ultra-marathon of athletes who have EIH. For this study, we obtain and analysis interleukin-6, tumor necrosis factor-α, interleukin-10 (IL-10), monocyte chemoattractant protein-1, creatine kinase and nitric oxide (NO) from 100 km ultra-marathoners before and right after the 100 km race. There were 40 volunteers who had ever won the 100 km marathon race before more than one time. They had the graded exercise test with measurement of BP for assessing EIH. Among them, eight athletes were categorized to normal control group (NCG) and 10 athletes were assessed by EIH group (EIHG). The graded exercise test with treadmill was performed for the maximal strenuous exercise and BP. EIH was diagnosed as <140/90 mm Hg in normal and ≥210 mm Hg in maximal exercise. Marathoners including EIHG (n=10) and NCG (n=8) participated in the race and blood extracted from them before the race and right after the race. As results, EIHG had lower IL-10 than NCG during resting states and after the 100 km race EIHG had significantly lower NO concentration than NCG. Therefore, the NO in the endothelial is inhibited during strenuous endurance exercise, resulting in vasoconstriction with increasing the BP.
Athletes* ; Cardiovascular Diseases ; Chemokine CCL2 ; Continental Population Groups ; Creatine Kinase ; Cytokines ; Exercise Test ; Humans ; Hypertension* ; Interleukin-10 ; Interleukin-6 ; Necrosis ; Nitric Oxide ; Running* ; Vasoconstriction ; Volunteers

A clinical and histopathological study was performed on ninety-four patients with nephrotic syndrome (91 idiopathic and 3 secondary) who were admitted to Department of Internal Medicine, Yeungnam University Hospital during the period of nine years, from January 1985 to May 1994. The results were as following. 1. the ratio of male to female was 1.76:1. In young age group, minimal change was the most predominant type. In old age group, membranous glomerulonephritis and focal glomerulosclerosis were predominant types. 2.- The primary nephrotic syndromes were 96.8% and secondary nephrotic syndromes were 3.2%. Histopathologic findings of 94 renal biopsy tissue were classified into minimal change (43.6%) mesangial proliferative glomerulonephritis (29.8%), membranous glomerulonephritis (12.8%), Typel membranous proliferative glomerulonephritis (4.3%), focal glomerulosclerosis (3.2%) .and others (6.4%). 3. The response of eighty-six patients treated with steroid showed complete remission in 51.2%, partial remission in 20.9%, steroid dependent in 2.3%, and no effect in 25.6% of cases respectively. The response to steroid therapy was most effective in the patients with minimal change lesion. 4. In the patient with membranous proliferative glomerulonephlitis, long-term angiotensin converting enzyme inhibitor treatment showed less deterioration of renal function.
Biopsy* ; Female ; Glomerulonephritis ; Glomerulonephritis, Membranous ; Glomerulosclerosis, Focal Segmental ; Humans ; Internal Medicine ; Male ; Nephrotic Syndrome ; Peptidyl-Dipeptidase A

PURPOSE: To elucidate factors affecting the outcome of pyeloplasty, we retrospectively reviewed a consecutive series of children who underwent dismembered pyeloplasty. METHODS: We encountered 37 kidneys in 30 patients with primary UPJ obstruction. Twenty eight were male and 2 were female. Sixteen patients (19 renal units) were younger than 1 year of age. There was a 2.3: 1 predominance of left side. In all 37 renal units, postoperative calyceal dilatations were compared to those of preoperative degrees by excretory urography or ultrasonography. In 20 of 23 unilateral disease, postoperative split renal functions measured by 99mTc MAG-3 or DTPA renal scan were compared to those of preoperative values. Mean follow up was 48.4 months. To assess the degree of improvement of renal function and calyceal dilatation, multivariant analysis was performed by groups according to age, initial presentation, preoperative split renal fuction, laterality and the degree of preoperative calyceal dilatation. RESULTS: In patients younger than 1 year, the most common initial presentation was prenatally detected hydronephrosis (9/16) and in older children, abdominal mass or pain (10/14). In all 20 patients who had renal scan, split renal function was improved in 13 (65.0%) and unchanged in 7 (35.0%) after the surgery. In 9 kidneys with impaired preoperative split renal function (less than 35%), renal function was improved greater than 5% in 8 (88.9%) after the surgery. in the other 11 renal units, the function was greater than 35% before and after the surgery. The improvement of calyceal dilatation was noticed in 33 (89.2%) of the renal units and more significant in groups of children who had high grade (IV,V) hydronephrosis with preoperative renal function of greater than 35%. The degree of functional improvement was better in groups of patients whose age were under 12 months and also who had impaired renal function with mild to moderate calyceal dilatation. The half time clearance was well correlated to the degree of calyceal dilatation. No one underwent repeated operation. CONCLUSIONS: Dismembered pyeloplasty is safe and highly successful procedure. The greatest potential recovery of renal function was noticed in patients with decreased renal function but mild to moderate hydronephrosis. And the resolution of calyceal dilatation was most likely in patients with severe hydronephrosis but well preserved renal function.
Child* ; Dilatation ; Female ; Follow-Up Studies ; Humans ; Hydronephrosis ; Kidney ; Male ; Pentetic Acid ; Retrospective Studies ; Ultrasonography ; Urography