This study was done to determine the value of thallium-201 stress myocardial perfusion scanning for identifying disease in the individual coronary arteries. Segement analysis of rest and stress myocardial perfusion scanning was performed in 65 subjects who underwent coronary arteriography. Anterolateral wall detects had a sensitivity of 70%, a spectivity of 92%, and a predicitive accuracy of 93.3% for identifying left anterior descending(LAD) coronary artery disease(CAD). Anteroseptal wall defects had a sensitivy of 62.5%, a specificity of 80%, and a predictive accuracy of 83.3% for identifying LAD CAD. Septal wall defects had a sensitivity of 67.5%, a specificity of 92%, and a predictive accuracy of 94.4% for identifying LAD CAD. Inferior wall defects had a sensitivity of 65.4%, a specificity of 89.7%, and a predictive accuracy of 80.9% for identifying right CAD. Posterolateral wall defects had a identifying left circumflex CAD. Thus, although senmental analysis of stress myocardial perfusin scanning can identify LAD CAD with high sensitivity and specificity, only moderate sensitivity and specificity are achieved in identifying right CAD or left circumflex CAD. But stress myocardial perfusion scanning has tendency to identify the most severely ischemic area, use of segmental analysis may be of benefit in the evaluation of patients with ischemic heart disease before or after coronary artery bypass graft and percutaneous transluminal coronary angioplasty.
Angiography ; Angioplasty, Balloon, Coronary ; Coronary Artery Bypass ; Coronary Artery Disease* ; Coronary Vessels* ; Humans ; Myocardial Ischemia ; Perfusion* ; Sensitivity and Specificity ; Transplants

No abstract available.
Hemorrhage* ; Humans ; Infant* ; Infant, Very Low Birth Weight*

PURPOSE: We wanted to evaluate the short term clinical and radiological results and the complications of primary total hip arthroplasty with using a Accolade TMZF femoral stem. MATERIALS AND METHODS: 66 cases among 80 cases underwent total hip arthroplasty by one surgeon with using an Accolade TMZF femur stem from January 2002 to August 2006. The minimum follow-up was 30 months and we retrospectively analyzed these 66 patients. RESULTS: The mean Harris Hip Score improved from 54 to 92 at the last follow up. On the last follow-up X-ray, all the femoral stems (100%) showed stable fixation and there was no osteolysis or loosening, but there were 34 cases of stress shields and 20 cases of cortical hypertrophy. The acetabular component revealed stable fixation in 65 cases (98.5%) and loosening in one case (1.5%). There was no acetabular osteolysis, but 22 cases of radiolucency were observed in the Dee Lee and Charnley zone II. As complications, there were 5 cases of heterotrophic ossification, 1 case of greater trochanteric bursitis, 2 cases of thigh pain and 1 case with a squeaking sound. CONCLUSION: Primary total hip arthroplasty using a cementless Accolade TMZF femoral stem showed good results in the short term, but long term follow up is needed.
Arthroplasty ; Bursitis ; Femur ; Follow-Up Studies ; Hip ; Hypertrophy ; Osteolysis ; Retrospective Studies ; Thigh

In general, Orthodontists make problem lists and treatment plans based on norms of several cephalometric standards. But consideration of dentoalveolar compensation, which tends to maintain normal dental arch relationship in various skeletal jaw relationships, helps orthodontists make more individualized treatment objectives and plans. The purpose of this study was to classify skeletal pattern of normal occlusion samples by cluster analysis and to investigate the dentoalveolar compensation according to skeletal patterns. The subjects were consisted of 125 subjects who were normal occlusion samples at Seoul National University Dental Hospital, Department of Orthodontics. Lateral cephalograms in centric occlusion were traced and digitized. The skeletal patterns of normal occlusion samples were classified into three horizontal groups and three vertical groups by cluster analysis and ANOVA on the skeletal and dentoalveolar measurements among the groups were carried out. The results were as follows; 1. Anteroposterior and vertical skeletal relationships of normal occlusion samples were very variable. 2. As the mandibular position was anterior to the maxilla, the maxillary incisors inclined more labially, the mandibular incisors more lingually, and the occlusal plane was flattened due to the anteroposterior dentoalveolar compensation. 3. As the vertical skeletal pattern was prominent, the upper anterior dentoalveolar height was increased, the lower posterior dentoalveolar height was decreased and upper posterior teeth was uprighted to the palatal plane and lower incisors and lower posterior teeth to the mandibular plane. 4. Lower incisors were more strongly associated with the dentoalveolar compensation than upper incisors according to the anteroposterior and vertical skeletal relationship.
Cluster Analysis ; Compensation and Redress* ; Dental Arch ; Dental Occlusion ; Incisor ; Jaw ; Maxilla ; Orthodontics ; Seoul ; Tooth

Gastric schwannoma is a very rare gastrointestinal mesenchymal tumor. Schwannoma in the gastrointestinal tract is usually not symptomatic, and preoperative abdominal CT or endoscopic evaluation cannot distinguish it from gastrointestinal stromal tumor. Surgical resection of this tumor is adequate to achieve a good prognosis. We performed laparoscopic gastric wedge resection in two patients who had the preoperative diagnosis of gastric gastrointestinal stromal tumor. In both cases, the postoperative immunohistochemistry staining was positive for S-100 protein and it was negative for CD34, which is consistent with gastric schwannoma. We report here on two cases of gastric schwannoma along with a review of the literatures.
Diagnosis ; Gastrointestinal Stromal Tumors ; Gastrointestinal Tract ; Humans ; Immunohistochemistry ; Laparoscopy* ; Neurilemmoma* ; Prognosis ; S100 Proteins ; Tomography, X-Ray Computed

We performed radionuclide ventriculography before and within 1 week after percutaneous mirtal valvuloplasty(PMV) to evaluate left ventricular(LV) function in 20 patients(3 males and 17 females, mean age of 38±10 years) who were pure mitral stenosis before PMV and less than grade 1 mitral regurgitation developed after PMV. 9 out of 20 patients had atrial fibrillation and 3 patients developed a small left-to-right shunt(Qp/Qs<1.5)after PMV using double-balloon technique resulted in a increase in mitral valve area(0.9±0.3 to 2.1±0.8mm
Atrial Fibrillation ; Cardiac Output ; Female ; Humans ; Male ; Mitral Valve ; Mitral Valve Insufficiency ; Mitral Valve Stenosis* ; Radionuclide Ventriculography ; Stroke Volume

No abstract available.
Animals ; Female ; In Situ Hybridization ; Mice* ; Ovary*

PURPOSE: The hepatolithiasis and associated cholangitis result in liver atropy, biliary stricture, liver abscess and intrahepatic malignancy, and a hepatic resection should be performed in such cases. The technical difficulty and accompanied inflammation with a hepatic resection frequently cause postoperative complications. Therefore, the factors affecting the postoperative complications were evaluated. METHODS: Twenty one patients, with hepatolithiasis that had received a hepatectomy at the Department of Surgery, Eulji University Hospital between March 2001 and January 2003, were reviewed. RESULTS: The postoperative complications were intraabdominal abscess (7 cases), pleural effusion (3 cases), wound complication (3 cases), T-tube site leakage (1 case), cardiac arrest (1 case), acute pancreatitis (1 case), hepatitis A (1 case) and delayed gastric emptying (1 case). The overall complication rate was 57% (12/21 patients) and the most common complication was an intraabdominal abscess (7 cases). The factors that may affect these complications were analyzed. Preoperative percutaneous transhepatic biliary drainage (PTBD) increased the postoperative complications, which was statistically significant (p=0.027). Especially, preoperative PTBD and hepaticojejunostomy increased the rate of an intraabdominal abscess, which was statistically significant (p=0.026, p=0.008). CONCLUSION: With hepatolithiasis requiring hepatic resection there is a need to avoid unnecessary preoperative PTBD and bypass surgery for the reduction of postoperative complications, including an intraabdominal abscess. Conversely, it is considered important to remove every stone and avoid needless bypass surgery under an operation and for a hepatic resection to be performed after removing PTBD, where possible.
Abscess ; Cholangitis ; Constriction, Pathologic ; Drainage ; Gastric Emptying ; Heart Arrest ; Hepatectomy ; Hepatitis A ; Humans ; Inflammation ; Liver ; Liver Abscess ; Pancreatitis ; Pleural Effusion ; Postoperative Complications* ; Wounds and Injuries

OBJECTIVE: The purpose of this study was to evaluate the effect of hormone replacement therapy on endometrial thickness in postmenopausal women and to assess the difference in endometrial thickness by the type of hormone replacement therapy (HRT). MATERIALS AND METHODS: Endometrial thickness was measured in 258 postmenopausal women before and/or during 12 months of HRT. The subjects were grouped into the sequential therapy group (Group 1, 72 women) and continuous combined therapy group (Group 2, 186 women). Group 1 received 0.625 mg of conjugate equine estrogen (CEE) daily with cyclic addition of medroxyprogesterone acetate (MPA, 10 mg/day for 12 days per month). Group 2 received 0.625 mg of CEE with daily addition of MPA (2.5 mg/day). RESULTS: The sequential group showed no significant change in endometrial thickness during HRT compared to that before HRT. However, a significant increase in endometrial thickness was found in the continuous combined group at 12 months of treatment. Before HRT, the endometrial thickness in the continuous combined group was thinner than that of the sequential group. During 12 months of treatment, there was no difference in endometrial thickness between the types of HRT. And the proportion of patients with endometrial thickness of 8mm or greater at 12 months of treatment did not differ significantly from that before treatment in both groups. CONCLUSION: Sequential HRT did not influence the endometrial thickness during treatment. However, continuous combined HRT increased the endometrial thickness during 12 months of treatment compared to that before treatment. The different endometrial responses to each HRT regimen may be due to the difference in endometrial thickness before treatment in each group.
Estrogens ; Female ; Hormone Replacement Therapy* ; Humans ; Medroxyprogesterone Acetate

The aim of this study was to investigate whether serum levels of anti-Mullerian hormone (AMH) and inhibin B at ovulation triggering day correlate with the number of immature oocytes obtained from stimulated in vitro fertilization (IVF) cycles. Fiftynine consecutive cycles of ovarian hyperstimulation and IVF were selected from 45 women who had tubal (n=18) or unexplained infertility (n=27) and obtained at least one oocyte. Serum levels of AMH and inhibin B at ovulation triggering day were measured by enzyme-linked immunosorbent assay (ELISA). Univariate analysis and multiple regressions revealed that serum AMH or inhibin B levels were significantly correlated with immature oocyte count and the correlation coefficients were higher compared to the mature oocyte count. Serum AMH and inhibin B levels on triggering day seems to be more closely related with the immature oocyte count and thus could be good predictors to determine the immature oocyte count in IVF cycle.
Adult ; Anti-Mullerian Hormone/*blood ; Enzyme-Linked Immunosorbent Assay ; Female ; *Fertilization in Vitro ; Humans ; Inhibins/*blood ; *Oocyte Retrieval ; *Ovulation Induction ; Regression Analysis