Alveolar Process ; Maxilla ; Osteotomy

Child ; Child, Preschool ; Cleft Lip ; Cleft Palate ; Congenital Abnormalities ; Consensus ; Humans ; Infant ; Leukocyte Count ; Male ; Palate ; Surgery, Oral

The purpose of this study is to examine the change of enzymeimmuno-assay for prostaglandinE2 in the synovial fluid lavage specimen of patients with mandibular fracture patients without condylar fracture. For this study, fourteen patients (eight males, six females) with mandibular fractures without condylar fracture was investigated to analyse the synovial fluid from upper temporomandibular joint cavities. Synovial fluid was collected from TMJ cavities of mandibular fracture patients before open reduction and after one week of open reduction, and then stored in liquid nitrogen tank after centrifuge. Two synovial fluid lavage samples of TMJs of 2 asymptomatic served as normal controls referred from other data. The concentrations of PGE2 were measured by use of PGE2 EIA system (Amersham). The following results were obtained: 1) In nine patients, the concentrations of PGE2 are lower after open reduction than before. 2) In three patients, the concentrations of PGE2 are higher after open reduction than before. 3) There was no statistical significant between the preoperative group and postoperative 7 days (p>0.05), but there was some difference between the two groups. In conclusion, the results suggest that PGE2 probably does not play as important role in the harm of TMJ.
Dinoprostone* ; Humans ; Male ; Mandibular Fractures* ; Nitrogen ; Synovial Fluid* ; Temporomandibular Joint* ; Therapeutic Irrigation

BACKGROUND/AIMS: Patient compliance and resistance to antibiotics are main factors determining the success of Helicobacter pylori eradication. This study provides basic data to verify the efficacy of currently implemented eradication therapy and reports changes in H. pylori resistance to all antibiotics used at Asan Medical Center, Seoul, Korea from 2004 to 2010. METHODS: We investigated the resistance rates to amoxicillin, clarithromycin, metronidazole, ciprofloxacin, and levofloxacin in 88, 100, and 47 strains isolated from adult patients without H. pylori eradication history in 2004, 2007, and 2010. RESULTS: The resistance rate to amoxicillin increased from 5.0% in 2007 to 10.6% in 2010. The resistance rate to clarithromycin increased from 10.2% in 2004 and 11.0% in 2007 to 14.8% in 2010. However, no difference was observed in the resistance rate to metronidazole, and strains resistant to tetracycline were not detected at all in this study. The resistance rates to quinolone lingered at 15-17% for 3 years. The non-resistant strains to antibiotics accounted for 56% of the total in 2004 and 62% in 2007. In contrast, a decreasing tendency was found for those strains in 2010 (43%). No significant differences were shown in the multi-drug resistance rate or the co-resistance rates of amoxicillin and clarithromycin over the 3 years. CONCLUSIONS: We showed increased resistance rates to clarithromycin and amoxicillin over the last 7 years, aligning with the results of previous studies performed domestically. Efforts are needed to inhibit the increase in resistant bacteria to maintain the effectiveness of eradication therapy.
Adult ; Amoxicillin ; Anti-Bacterial Agents ; Bacteria ; Chungcheongnam-do ; Ciprofloxacin ; Clarithromycin ; Drug Resistance, Microbial* ; Drug Resistance, Multiple ; Helicobacter pylori* ; Helicobacter* ; Humans ; Korea ; Levofloxacin ; Metronidazole ; Patient Compliance ; Seoul* ; Tetracycline

PURPOSE: This study aimed to compare cerebral hemispheric volumes between pharmacologic treatment and supportive management of patent ductus arteriosus (PDA). METHODS: The study was conducted retrospectively. The subjects of period 1 group were very low birth weight infants whose PDA were treated with pharmacologic closure. Period 2 group were treated with supportive management. Regional brain volumes measured using magnetic resonance imaging were compared between the two groups. RESULTS: total of 12 infants were included. Their median gestational age was 27⁺⁶ (range: 24⁺¹–31⁺¹) weeks and birth weight was 1,065 g (range: 690–1,380). Between the two groups, there was no difference in Apgar score, incidence of bronchopulmonary dysplasia, necrotizing enterocolitis, and culture proven sepsis. The regional brain volumes such as gray matter (Period 1 group, 76,833 mm³ [55,759–100,388] vs. Period 2 group, 79,870 mm³ [59,957–113,018], P=0.59), white matter (82,993 mm³ [63,130–121,311] vs. 92,576 mm³ [77,200–104,506], P=0.18), cerebrospinal fluid (17,167 mm³ [9,279–22,760] vs. 14,348 mm³ [7,018–27,604], P=0.94), basal ganglia (2,065 mm³ [1,697–2,482] vs. 2,306 mm³ [2,065–3,009], P=0.18), and cerebellum (18,374 mm³ [14,843–24,657] vs. 18,096 mm³ [16,134–23,627], P=0.94) were not different between the two groups. CONCLUSION: Regional brain volumes were not different between pharmacological and conservative treatment in infants with PDA. Further wellcontrolled studies are required to evaluate the advantages or disadvantages of supportive management without pharmacologic treatment of PDA.
Apgar Score ; Basal Ganglia ; Birth Weight ; Brain* ; Bronchopulmonary Dysplasia ; Cerebellum ; Cerebrospinal Fluid ; Ductus Arteriosus, Patent* ; Enterocolitis, Necrotizing ; Gestational Age ; Gray Matter ; Humans ; Ibuprofen* ; Incidence ; Infant* ; Infant, Newborn ; Infant, Premature ; Infant, Very Low Birth Weight* ; Magnetic Resonance Imaging ; Pilot Projects* ; Retrospective Studies ; Sepsis ; White Matter

Although various neoplasms may develop in the ventricular system, glioblastomas are rare. An 80-year-old woman visited our hospital with intractable headache related to a right ventricular large mass, which exhibited heterogeneous enhancement involving the body, trigone, and occipital horn of the right lateral ventricle on MRI. The mass was diagnosed as glioblastoma multiforme on surgical pathology. Herein, the authors present a case and review the existing literature with regarding to incidence, pathophysiology, prognostic factors, imaging and pathologic findings of intraventricular glioblastoma multiforme.

No abstract available.
Arteries ; Intracranial Arteriosclerosis

Purpose: This study aimed to propose an effective end-to-end process in medical imaging using an independent task learning (ITL) algorithm and to evaluate its performance in maxillary sinusitis applications. Materials and Methods: For the internal dataset, 2122 Waters’ view X-ray images, which included 1376 normal and 746 sinusitis images, were divided into training (n=1824) and test (n=298) datasets. For external validation, 700 images, including 379 normal and 321 sinusitis images, from three different institutions were evaluated. To develop the automatic diagnosis system algorithm, four processing steps were performed: 1) preprocessing for ITL, 2) facial patch detection, 3) maxillary sinusitis detection, and 4) a localization report with the sinusitis detector. Results: The accuracy of facial patch detection, which was the first step in the end-to-end algorithm, was 100%, 100%, 99.5%, and 97.5% for the internal set and external validation sets #1, #2, and #3, respectively. The accuracy and area under the receiver operating characteristic curve (AUC) of maxillary sinusitis detection were 88.93% (0.89), 91.67% (0.90), 90.45% (0.86), and 85.13% (0.85) for the internal set and external validation sets #1, #2, and #3, respectively. The accuracy and AUC of the fully automatic sinusitis diagnosis system, including site localization, were 79.87% (0.80), 84.67% (0.82), 83.92% (0.82), and 73.85% (0.74) for the internal set and external validation sets #1, #2, and #3, respectively. Conclusion ITL application for maxillary sinusitis showed reasonable performance in internal and external validation tests, compared with applications used in previous studies.

Background: and Purpose Various mechanisms are involved in the etiology of stroke caused by atherosclerosis of the middle cerebral artery (MCA). Here, we compared differences in plaque nature and hemodynamic parameters according to stroke mechanism in patients with MCA atherosclerosis. Methods: Consecutive patients with asymptomatic and symptomatic MCA atherosclerosis (≥50% stenosis) were enrolled. MCA plaque characteristics (location and plaque enhancement) and wall shear stress (WSS) were measured using high-resolution vessel wall and four-dimensional flow magnetic resonance imaging, respectively, at five points (initial, upstream, minimal lumen, downstream, and terminal). These parameters were compared between patients with asymptomatic and symptomatic MCA atherosclerosis with infarctions of different mechanisms (artery-to-artery embolism vs. local branch occlusion). Results: In total, 110 patients (46 asymptomatic, 32 artery-to-artery embolisms, and 32 local branch occlusions) were investigated. Plaques were evenly distributed in the MCA of patients with asymptomatic MCA atherosclerosis, more commonly observed in the distal MCA of patients with artery-to-artery embolism, and in the middle MCA of patients with local branch occlusion. Maximum WSS and plaque enhancement were more prominent in the minimum lumen area of patients with asymptomatic MCA atherosclerosis or those with local branch occlusion, and were more prominent in the upstream area in those with artery-to-artery embolism. The elevated variability in the maximum WSS was related to stroke caused by artery-to-artery embolism. Conclusion Stroke caused by artery-to-artery embolism was related to plaque enhancement and the highest maximum WSS at the upstream point of the plaque, and was associated with elevated variability of maximum WSS.