Four hundred and fifty patients of cerebrovascular accident who underwent computerized tomographic scanning during the 45 months, from January 1978 to October 1981, at department of internal medicine, Kyung Hee University Hospital, were studied and following results were obtained. 1. In Korea, intracerebral hematoma(48.2%) is more common than cerebral infarction(27.6%). 2. 87.3% of intracerebral hemorrhage were comfirmed while 61.5% of cerebral infarction were identified by brain CT. 3. Cerebrovascular accidents are definitely developing in 6th decade(40.6%) and male is more often affected. 4. hypertension is the most common underlying disease(72.3%) of cerebral hemorrhage, 52.4% of cerebral infarction. 5. hematoma occurs most frequently in basal ganglia(40.6%) and cerebral infarction occurs most frequently in global area(48.4%). 6. Changes of consciousness level were observed in 54.2% of the cases of mild degree hematoma. Mortality was 6.2% in mild degree hematoma and 88.2% in severe degree hematoma. 7. In 26.2% of cerebral hematoma, inital CSF findings were normal in spite of the evidence of cerebral hematoma confirmed by CT scanning.
Brain* ; Cerebral Hemorrhage ; Cerebral Infarction ; Classification* ; Consciousness ; Hematoma ; Humans ; Hypertension ; Internal Medicine ; Korea ; Male ; Mortality ; Stroke* ; Tomography, X-Ray Computed

STATEMENT OF PROBLEM: Many dental clinicians are concerned about immediate loading of inserted implants. However, there have been few clinical studies surveying the success rates of immediate loading, based on Korean implant systems. PURPOSE: The aim of this study was to evaluate the outcome of immediate functional loading of the implant (SinusQuick(TM) EB, Neobiotech Co., Seoul, Korea) in partially edentulous maxilla or mandible. MATERIAL AND METHODS: Total 15 implants were placed. Within 2 weeks after implant insertion, provisional implant-supported fixed partial dentures were delivered to the patients. Quantitatively, marginal bone loss was measured at the time of immediate loading, after 3-months of continued loading and at the last follow-up. The mean follow-up period was 4.8 months. RESULTS: Mean marginal bone loss from implant surgery to early loading, 3-months follow-up and last follow-up was 0.03 +/- 0.07 mm, 0.16 +/- 0.17 mm and 0.29 +/- 0.19 mm. No implant failed up to 6 months after insertion, resulting in a 100% survival rate. CONCLUSION: Immediate loading exhibited high success rate in partial edentulism for up to 6 months. Well-controlled long term clinical studies with large sample size are necessary to confirm this finding.
Dental Implants ; Denture, Partial, Fixed ; Follow-Up Studies ; Humans ; Mandible ; Maxilla ; Prospective Studies ; Sample Size ; Survival Rate

We recently obsesved an unusual case of visual loss after the facial injection of autologous fat. A 42-year-old woman underwent autologous fat injection into the temple area to reduce facial wrinkles. The procedure was performed by a surgeon at local clinic. The patient immediately complained of severe right hemicranial pain and lid swelling. She vistied to the ophthalmic department of our hospital 1 week later because of total loss of vision on the right eye. We believe that the cause of blindness was multiple microembolization in the central retinal artery and posterior ciliary branches of the ophthalmic artery via lateral palpebral artery.
Adult ; Arteries ; Blindness ; Choroid* ; Female ; Humans ; Ophthalmic Artery ; Retinal Artery ; Retinaldehyde*

PURPOSE: To investigate the effect of spinal cord injury(SCI) on male reproductive function, we evaluated changes of pituitary-testicular hormonal level at various time intervals in spinal cord injured rats. MATERIALS AND METHODS: SCI was produced in 30 sexually mature Sprague-Dawley rats by T10 spinal cord transection. 20 controls received similar surgery without transection. Testosterone concentrations in the serum and testis, serum levels of follicle-stimulating hormone(FSH) and leutenizing hormone(LH) were measured with radioimmunoassay. Two way analysis of variance(ANOVA) was performed. RESULTS: Testosterone levels in the serum and testis were lower at 2 weeks after injury than in controls, but others were not. Serum levels of FSH and LH were similar in both group. CONCLUSIONS: Spinal cord injury in rats induced impairment of testosterone production in testis at 2 weeks.
Animals ; Axis, Cervical Vertebra* ; Humans ; Male ; Radioimmunoassay ; Rats* ; Rats, Sprague-Dawley ; Spermatogenesis ; Spinal Cord Injuries* ; Spinal Cord* ; Testis ; Testosterone

BACKGROUND/AIMS: Pancreatic cancer has a very poor prognosis, and early diagnosis is a way to increase the survival rate of patients. The purpose of this study was to develop pancreatic cancer-specific peptides for imaging studies. METHODS: Three pancreatic cancer cell lines, MIA PaCa-2, UACC-462, and BxPC-3, and a control cell line, CCD841, were used. Biopannings were performed on MIA PaCa-2 using a phage display library. After this, the peptides were synthesized and labeled with fluorescein isothiocyanate (FITC). Immunocytochemistry (ICC), enzyme-linked immunosorbent assay (ELISA), and fluorescence-activated cell sorter (FACS) were performed to examine the specific binding. To examine its therapeutic applications, a photosensitizer, chlorin e6 (Ce6), was conjugated on the peptide and photodynamic therapy was performed. Cell survival was investigated using a [3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide] assay. RESULTS: After three biopannings, the phages were amplified from 1.4×104 to 3.2×105 plaque-forming units. The most strongly binding phage was selected from the ELISA and ICC results. FITC-labeled peptide, M5, in the three pancreatic cancer cell lines showed significantly higher immunofluorescence in the ICC experiments than that of CCD841. The higher binding ability to MIA PaCa-2 cells was confirmed from FACS analysis, which showed a right shift compared to CCD841. M5 bound to Ce6 showed a significantly lower cell survival rate than that of Ce6 alone in photodynamic therapy, which was observed consistently as a change in the tumor size and fluorescence intensity in MIA PaCa-2 cell-implanted animal models. CONCLUSIONS: This study showed that the noble peptide, M5, binds specifically to the pancreatic cancer cell line, MIA PaCa-2. The M5 peptide has potential use in future optical diagnostic and therapeutic purposes.
Bacteriophages ; Cell Line ; Cell Survival ; Early Diagnosis ; Enzyme-Linked Immunosorbent Assay ; Fluorescein ; Fluorescence ; Fluorescent Antibody Technique ; Humans ; Immunohistochemistry ; Models, Animal ; Pancreatic Neoplasms ; Peptides ; Photochemotherapy ; Prognosis ; Survival Rate

BACKGROUND/AIMS: Pancreatic cancer has a very poor prognosis, and early diagnosis is a way to increase the survival rate of patients. The purpose of this study was to develop pancreatic cancer-specific peptides for imaging studies.METHODS: Three pancreatic cancer cell lines, MIA PaCa-2, UACC-462, and BxPC-3, and a control cell line, CCD841, were used. Biopannings were performed on MIA PaCa-2 using a phage display library. After this, the peptides were synthesized and labeled with fluorescein isothiocyanate (FITC). Immunocytochemistry (ICC), enzyme-linked immunosorbent assay (ELISA), and fluorescence-activated cell sorter (FACS) were performed to examine the specific binding. To examine its therapeutic applications, a photosensitizer, chlorin e6 (Ce6), was conjugated on the peptide and photodynamic therapy was performed. Cell survival was investigated using a [3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide] assay.RESULTS: After three biopannings, the phages were amplified from 1.4×104 to 3.2×105 plaque-forming units. The most strongly binding phage was selected from the ELISA and ICC results. FITC-labeled peptide, M5, in the three pancreatic cancer cell lines showed significantly higher immunofluorescence in the ICC experiments than that of CCD841. The higher binding ability to MIA PaCa-2 cells was confirmed from FACS analysis, which showed a right shift compared to CCD841. M5 bound to Ce6 showed a significantly lower cell survival rate than that of Ce6 alone in photodynamic therapy, which was observed consistently as a change in the tumor size and fluorescence intensity in MIA PaCa-2 cell-implanted animal models.CONCLUSIONS: This study showed that the noble peptide, M5, binds specifically to the pancreatic cancer cell line, MIA PaCa-2. The M5 peptide has potential use in future optical diagnostic and therapeutic purposes.
Bacteriophages ; Cell Line ; Cell Survival ; Early Diagnosis ; Enzyme-Linked Immunosorbent Assay ; Fluorescein ; Fluorescence ; Fluorescent Antibody Technique ; Humans ; Immunohistochemistry ; Models, Animal ; Pancreatic Neoplasms ; Peptides ; Photochemotherapy ; Prognosis ; Survival Rate

Dual energy X-ray absorptiometry (DXA) has become the most common method for measuring bone mineral density (BMD) of small animals in metabolic bone disease research, and errors should be minimized in all procedures involved in research studies in order to increase the accuracy of the study results. DXA is simpler and rapid compared to Micro-computed tomography for quantitative analysis of change in trabecular bone of test subject. In human research, measuring BMD is widely used; post-operative evaluation on orthopedic surgery, evaluation of osteoporosis medication in menopause and many other areas of study. For the study, the inspector should be trained by the equipment manufacturer regarding the utilization and analysis of the equipment and regular phantom testing should be conducted to ensure the stability of the equipment, and precision tests should be conducted to analyze the positioning and data analysis. They should also be familiar with the clinical trials and conduct studies based on the approval of the Institutional Review Board. In the absolute BMD measurement of the human body, it is necessary to apply and compare the position and condition, rotation degree, region of interest, and area of the scan in the follow-up test. In the case of small animals, animal selection, measurement and equipment should be modeled to match the research. Therefore, we would like to provide information for researchers to minimize the errors, effective data management and accurate data presentation. This article reviews the process of DXA measurement for research purpose including plan for DXA examination, BMD measurement in a human body study and small animal studies.
Absorptiometry, Photon ; Animals ; Bone Density ; Bone Diseases, Metabolic ; Ethics Committees, Research ; Female ; Follow-Up Studies ; Human Body ; Humans ; Menopause ; Methods ; Orthopedics ; Osteoporosis ; Statistics as Topic

BACKGROUND: Solid and papillary epithelial neoplasm(SPEN) is a rare malignant tumor of the pancreas that typically occurs in young females and has an excellent prognosis. This tumor has a low malignant potential, and is highly curable with surgical treatment. METHODS AND MATERIALS: From January 1986 to July 1999, ten patients of solid and papillary epithelial neoplasm of the pancreas pathologically verified at Kyung Hee University Hospital were retrospectively analyzed. Pre-, intra-, and post-operative data were evaluated in all patients to determine optimal management with specific reference to surgical strategy. RESULTS: Nine patients out of ten were females, with a mean age of 21.8 years (range 12-38). Six patients presented with a palpable abdominal mass and four patients with abdominal pain. Remaining patients presented with fever, low back pain, and no specific symptom. Abdominal ultrasonography and/or CT scan showed an abdominal mass in all patients. The correct preoperative diagnosis of SPEN was made in six patients. Incorrect diagnosis included pseudocysts in two and cystadenoma in two. The tumor size ranged from 5 to 14.5 cm in diameter (average 8.85 cm). Four patients with tumor in the pancreatic head had a pylorus preserving pancreaticoduodenectomy (PPPD). Four patients with tumor in the pancreatc tail underwent distal pancreatectomy and splenectomy(without in one). Two patients were performed mass enucleation only. The histologic diagnosis was confirmed in all patients. There were no nuclear atypia and pleomorphism in microscopic findings. Postoperative complications were intraabdominal abscess in one, lymphatics leakages in one, and wound infection in one. All ten patients are alive without sign of recurrence with a mean follow-up of 5.36 years (range 0.1 to 13 years). CONCLUSIONS: SPEN is an indolent tumor of the pancreas with low malignant potential and excellent long-term prognosis and should be considered in the differential diagnosis of large pancreatic masses, especially in young females. Resection is the treatment of choice that is resectable.
Abdominal Pain ; Abscess ; Cystadenoma ; Diagnosis ; Diagnosis, Differential ; Female ; Fever ; Follow-Up Studies ; Head ; Humans ; Low Back Pain ; Neoplasms, Glandular and Epithelial* ; Pancreas* ; Pancreatectomy ; Pancreaticoduodenectomy ; Postoperative Complications ; Prognosis ; Pylorus ; Recurrence ; Retrospective Studies ; Tomography, X-Ray Computed ; Ultrasonography ; Wound Infection

Retroperitoneal fibrosis, although benign, has a malignant course due to an encasement and obstruction of the retroperitoneal structures, particularly the urinary system. The most common treatment is often a surgical exploration followed by urologic intervention. However, steroid or azathioprine therapy has been advocated, with varying results and major side-effects. Recently, the successful medical therapy in patients with an early stage and low malignant potential has been reported. Here we report a male patient who underwent successful treatment of an idiopathic retroperitoneal fibrosis with tamoxifen and prednisolone.
Azathioprine ; Humans ; Male ; Prednisolone ; Retroperitoneal Fibrosis* ; Tamoxifen ; Ureter

PURPOSE: In donor nephrectomy, it is important to understand the exact anatomy of the blood vessels during minimally invasive surgery. We prospectively analyzed the accuracy of the vessel structures obtained by use of 64-row multi-detector computed tomography (MDCT) angiography compared with the actual vessel structure observed during surgery. MATERIALS AND METHODS: We analyzed 238 patients who underwent donor nephrectomy from July 2007 to August 2010. Before the operation, MDCT angiography was performed, and after the operation, the surgeons themselves wrote the protocol. The ipsilateral artery, the number of veins, the association with the run of the hilar vessel, and other vascular anomalies in computed tomography (CT) angiography and in the donor protocol were summarized. RESULTS: Among 238 patients, nephrectomy was performed on the left side in 199 patients. The accuracy of MDCT for the artery and the vein was 93.3% and 92.4%, respectively. Accuracy did not differ significantly on the left and right sides (artery: p=0.124; vein: p=0.174). In 199 patients, the CT findings for the lumbar vein were compared with the surgical findings. The overall accuracy was shown to be 84.9%, and the accuracy of the group drained to the inferior vena cava (54%) was significantly different (p<0.01) from that of the group drained to the renal vein (98.6%). Thus, it may be necessary to pay close attention to the interpretation of the findings for the lumbar vein. CONCLUSIONS: MDCT angiography is important for understanding the exact anatomy of blood vessels before minimally invasive surgery. We showed that 64-channel MDCT has high accuracy in the main vessel and hilar vessels. However, close attention to the interpretation of the CT findings for the lumbar vein may be required.
Angiography ; Arteries ; Blood Vessels ; Glycosaminoglycans ; Humans ; Kidney ; Kidney Transplantation ; Living Donors ; Nephrectomy ; Prospective Studies ; Renal Artery ; Renal Veins ; Tissue Donors ; Tomography, Spiral Computed ; Veins ; Vena Cava, Inferior