No abstract available.
Lymphocyte Subsets* ; Lymphocytes* ; Splenectomy*

PURPOSE: This study conducted an analysis of cost-effectiveness of the implant and conventional fixed dental prosthesis (CFDP) from a single treatment perspective. MATERIALS AND METHODS: The Markov model for cost-effectiveness analysis of the implant and CFDP was carried out over maximum 50 years. The probabilistic sensitivity analysis was performed by the 10,000 Monte-Carlo simulations, and cost-effectiveness acceptability curves (CEAC) were also presented. The results from meta-analysis studies were used to determine the survival rates and complication rates of the implant and CFDP. Data regarding the cost of each treatment method were collected from University Dental Hospital and Statistics Korea for 2013. Using the results of the patient satisfaction survey study, quality-adjusted prosthesis year (QAPY) of the implant and CFDP strategy was evaluated with annual discount rate. RESULTS: When only the direct cost was considered, implants were more cost-effective when the willingness to pay (WTP) was more than 10,000 won at 10th year after the treatment, and more cost-effective regardless of the WTP from 20th year after the prosthodontic treatment. When the indirect cost was added to the direct cost, implants were more cost-effective only when the WTP was more than 75,000 won at the 10th year after the prosthodontic treatment, more than 35,000 won at the 20th year after prosthodontic treatment. CONCLUSION: The CFDP was more cost-effective unless the WTP was more than 75,000 won at the 10th year after prosthodontic treatment. But the cost-effectivenss tendency changed from CFDP to implant as time passed.
Dental Prosthesis* ; Korea ; Patient Satisfaction ; Prostheses and Implants ; Prosthodontics ; Survival Rate

No Abstract Available.
Autografts* ; Ligaments* ; Patellar Ligament* ; Posterior Cruciate Ligament* ; Transplants*

PURPOSE: This study was aimed to compare skin entrance dose of digital radiography with that of film radiography and to show the dose reduction achievement with digital systems at 11 dental schools in Korea. MATERIALS AND METHODS: Forty six intraoral radiographic systems in 11 dental schools were included in this study. Digital sensors were used in 33 systems and film was used in 13 systems. Researchers and the volunteer visited 11 dental schools in Korea. Researchers asked the radiologic technician (s) at each school to set the exposure parameters and aiming the x-ray tube for the periapical view of the mandibular molar of the volunteer. The skin entrance doses were measured at the same exposure parameters and distance by the technician for each system with a dosimeter (Multi-O-Meter : Unfors instruments, Billdal, Sweden). RESULTS: The median dose was 491.2micronGy for digital radiography and 1, 205.0 microGy for film radiography. The skin entrance dose in digital radiography was significantly lower than that of film radiography (p< 0.05). CONCLUSIONS: Fifty-nine percent skin entrance dose reduction with digital periapical radiography was achieved over the film radiography in Korean dental schools.
Humans ; Korea ; Molar ; Radiographic Image Enhancement ; Radiography* ; Schools, Dental* ; Skin* ; Volunteers

An fistula occurring between the stomach and other abdominal internal organs or to the surface of the body is usually encountered as a complication of stomach cancer or colon cancer, peptic ulcer disease, or other variable causes. The most common type of gastric fistula is a gastro-colic fistula that is mainly found as a complication of a gastric carcinoma or of a carcinoma of the transverse colon invading each other. Sometimes, a benign gastric ulcer perforation also can cause a gastro-colic fistula. However, as far as we know, a fistula occurring between the stomach and the umbilicus has not been reported. Here we present a case report of a gastro-umbilical fistula in a young woman that manifested as a umbilical discharge.
Abdomen ; Colon, Transverse ; Colonic Neoplasms ; Female ; Fistula* ; Gastric Fistula ; Humans ; Peptic Ulcer ; Stomach ; Stomach Neoplasms ; Stomach Ulcer* ; Ultrasonography ; Umbilicus

PURPOSE: The most common cause of failure after Steindler flexorplasty has been known insufficient power of the transferred muscles. We develop "effective muscle index" which is calculated from the actual strength of each muscle to predict postoperative flexion power of the elbow for preventing the failure of the surgery. MATERIALS AND METHODS: We reviewed 10 patients who received Steindler flexorplasty from Aug. 1983 to Jan. 1997. We calculated "effective muscle index" with power of each transferred muscle, tension fraction2) by Brand, 1981, correction index of the magnitude of transferring muscle and correlated the "effective muscle index" with postoperative elbow flexion power. RESULTS: Excluding 4 out of total 10 patients who had grade 1 or 2 power of biceps and brachialis, "effective muscle index" has borderline significance with the postoperative flexion power of the elbow (p=0.123) . CONCLUSION: The authors concluded that the "effective muscle index" is maybe considered as a useful index for predicting the postoperative flexion power of the elbow after Steindler flexorplasty.
Elbow* ; Humans ; Muscles

The radiation exposure has multiple complication of various organs. Especially, the Food and Drug Administration has recently issued a bulletin warning of the risks of acute skin injury occurring during fluoroscopically guided procedures. Physicians need information about typical radiation doses during fluoroscopically guided various procedures and estimates of entrance skin dose must be monitored using thermoluminescent dosimetry, film badge dosimetry, pocket dosimetry and on-line computer system. Current National Council on Radiation Protection and Measurements recommended are that yearly total body dose should not exceed 50 mSv (5 rem) and that life time dose measured in millisieverts should not exceed one's age in years multiplied by 10. Types of skin injury are erythema, alopecia, dry desquamation, invasive fibrosis, dermal atropy, telangiectasia, moist desquamation, skin necrosis and secondary ulcer. Also, long-term exposure caused skin cancer. We experienced personally pigmentation on the finger nail and the hand after repeated fluoroscopically guided procedures. Thus, we report this case for giving warning to the physiatrist by the complications due to frequent exposure during procedures.
Alopecia ; Computer Systems ; Erythema ; Fibrosis ; Film Dosimetry ; Fingers ; Fluoroscopy ; Hand ; Humans ; Necrosis ; Pigmentation ; Radiation Protection ; Skin Neoplasms ; Skin* ; Telangiectasis ; Thermoluminescent Dosimetry ; Ulcer ; United States Food and Drug Administration

OBJECTIVES: Maxillary sinus carcinoma is rare when compared with cancers of other sites, and its etiology remains unknown. Recent reports demonstrate the possible etiologic role of human papillomavirus (HPV) and Epstein-Barr virus (EBV) in maxillary sinus carcinoma. The aim of this study is to detect HPV and EBV in the maxillary sinus carcinoma and examine the relationship between HPV, EBV and maxillary sinus carcinoma. We also compared the clinical features of patients with HPV-positive and HPV-negative to determine the clinical significance of HPV. MATERIALS AND METHOD: The authors retrospectively searched for HPV and EBV in 40 cases of maxillary sinus carcinoma by using the polymerase chain reaction (PCR) on DNA extracted from formalin-fixed, paraffin-embedded tissues. RESULTS: HPV was detected in 5 of the 40 cases (12.5%) of maxillary sinus carcinoma, whose histological type was all squamous cell carcinoma. EBV was not detected. Among the five HPV-positives, three were HPV subtype 16 and two were not determined. CONCLUSION: HPV may play a role in the pathogenesis of maxillary sinus carninoma, but EBV needs further study. However, the presence of HPV is not related to T-category, cervical metastases, or local recurrence.
Carcinoma, Squamous Cell ; DNA* ; Herpesvirus 4, Human* ; Humans* ; Maxillary Sinus* ; Neoplasm Metastasis ; Polymerase Chain Reaction* ; Recurrence ; Retrospective Studies

Insertion of self-expandable metallic stent has been performed as a palliative therapeutic modality for cases with gastrointestinal obstruction caused by inoperable malignancies such as pancreatic cancer, stomach cancer, and cholangiocarcinoma. Although the clinical efficacy is not established yet, it can also be performed for benign gastroduodenal obstruction. Especially, when balloon dilatation is failed and patients are at high risk for surgery or general anesthesia, and when patients refuse operation, insertion of metallic stent can be considered. Complications of this therapeutic modality include intestinal perforation, hemorrhage, migration or malposition of metallic stent, and occlusion of stent by ingrowth and overgrowth of tumor or impaction of food. We report a rare case of obstructive jaundice developed after the insertion of gastroduodenal stent for duodenal obstruction caused by recurrent duodenal ulcer.
Anesthesia, General ; Cholangiocarcinoma ; Dilatation ; Duodenal Obstruction* ; Duodenal Ulcer* ; Hemorrhage ; Humans ; Intestinal Perforation ; Jaundice ; Jaundice, Obstructive* ; Pancreatic Neoplasms ; Stents* ; Stomach Neoplasms

Placement of an endoprosthesis for billiary obstruction has been advocated as an effective alternative for internal-external drainage catheters or surgical procedure. Endoscopic retrograde biliary drainage (ERBD) is a method of transpapillary insertion and placement of drainage tube in the billiary tree under the direct view of endoscope. Early complications following ERBD that develop within 4 weeks include obstruction of the stent, cholangitis, hemorrhage, acute pancreatitis, and bile duct or duodenal perforation. Late complications include obstruction of the stent and cholangitis, migration of the stent, and intestinal perforation. We expierenced a case of sigmoid colonic perforation following ERBD in a patient with multiple biliary tract stone and cholangitis. Thus we report this case with a brief review of the literature.
Bile Ducts ; Biliary Tract ; Catheters ; Cholangitis ; Colon, Sigmoid* ; Drainage* ; Endoscopes ; Hemorrhage ; Humans ; Intestinal Perforation ; Pancreatitis ; Plastics* ; Stents*