The purpose of this study was to examine the frequency of dehiscence bone defect on peri-implant and to compare the difference between resorbable membrane and non-resorbable membrane in bone regeneration on peri-implant. Amomg the patients, 22 patientswho have recieved an implant surgery at the department of Periodontics in Dankook University Dental Hospital showed implant exposure due to the dehiscence defect and 27 implants of these 22 patients were the target of the treatment. Gore-Tex(R) and Bio-mesh(R) were applied to the patients and treated them with antibiotics for five days both preoperatively and postoperatively. Reentry period was 26 weeks on average in maxilla and 14 weeks on average in mandible. The results were as follows: 1. Dehiscence bone defect frequently appeared in premolar in mandible and anterior teeth in maxilla respectively. 2. Among 27 cases, 2 membrane exposures were observed and in these two cases, regenerated area was decreased. 3. In non-resorbable membrane, bone surface area 9.25+/-4.84 preoperatively and significantly increased to 11.48+/-7.52 postoperatively.(P<0.05) 4. In resorbable membrane, bone surface area was 14.80+/-8.25 preoperatively and meaningfully widened to 17.61+/-10.67 postoperatively.(P<0.05) 5. The increase of bone surface area in non-resorbable membrane was 2.23+/-3.38 and the increase of bone surface area in resorbable membrane was 2.80+/-3.00 ;therefore, there was no significant difference between these two membranes(P<0.05). This study implies that the surgical method using DFDB and membrane on peri-implant bone defect is effective in bone regeneration regardless the kind of the membrane, and a similar result was shown when a resorbable membrane was used.
Anti-Bacterial Agents ; Bicuspid ; Bone Regeneration* ; Humans ; Mandible ; Maxilla ; Membranes* ; Periodontics ; Tooth

BACKGROUND: Propofol can be used as a sedative. And, opioids are also frequently used to relieve pain or to induce sedation during monitored anesthetic care. The objectives of this study were to evaluate the effects of additional alfentanil for sedation. METHODS: Forty-four patients scheduled for ERCP (endoscopic retrograde pancreatocholangiography) were allocated to one of two groups (group 1: propofol without alfentanil, group 2: propofol with alfentanil). In group 2, we mixed propofol with 1,000microgram alfentanil, and administered propofol using a target controlled infusion (TCI). During ERCP, we checked oxygen saturation, systolic blood pressure, heart rate, complications (hypoxemia, agitation, bradycardia, tachycardia). After the procedure, we also checked recovery characteristics; complications (nausea/vomiting, itching, urinary retention, soar throat), and satisfaction scores by using the VAS system (0-100 mm, 0 mm: no satisfaction at all, 100 mm: perfect satisfaction). RESULTS: There were no significant differences between the two groups in terms of the recovery characteristics, incidence of complications and the satisfaction score of endoscopist or patients. And the total amounts of propofol used were not significantly different. Only SPO2, systolic blood pressure and heart rate showed slight differences, but these were not clinically significant. CONCLUSIONS: We concluded that the sedation using propofol mixed with 1,000microgram alfentanil has no merit compared with plain propofol.
Alfentanil* ; Analgesics, Opioid ; Blood Pressure ; Bradycardia ; Cholangiopancreatography, Endoscopic Retrograde* ; Dihydroergotamine ; Heart Rate ; Humans ; Incidence ; Oxygen ; Propofol ; Pruritus ; Urinary Retention

PURPOSE: To evaluate the practical applications of the diagnosis algorithms recommended by the American Academy of Pediatrics urinary tract infection (UTI) guideline. METHODS: We retrospectively reviewed the medical records of febrile UTI patients aged between 2 and 24 months. The patients were divided into 3 groups: group I (patients with positive urine culture and urinalysis findings), group II (those with positive urine culture but negative urinalysis findings), and group III (those with negative urine culture but positive urinalysis findings). Clinical, laboratory, and imaging results were analyzed and compared between the groups. RESULTS: A total of 300 children were enrolled. The serum C-reactive protein level was lower in children in group II than in those in groups I and III (P<0.05). Children in group I showed a higher frequency of hydronephrosis than those in groups II and III (P<0.05). However, the frequencies of acute pyelonephritis (APN), vesicoureteral reflux (VUR), renal scar, and UTI recurrence were not different between the groups. In group I, recurrence of UTI and presence of APN were associated with the incidence of VUR (recurrence vs. no recurrence: 40% vs.11.4%; APN vs. no APN: 23.3% vs. 9.2%; P<0.05). The incidence of VUR and APN was not related to the presence of hydronephrosis. CONCLUSION: UTI in febrile children cannot be ruled out solely on the basis of positive urinalysis or urine culture findings. Recurrence of UTI and presence of APN may be reasonable indicators of the presence of VUR.
C-Reactive Protein ; Child ; Cicatrix ; Diagnosis ; Humans ; Hydronephrosis ; Incidence ; Medical Records ; Pediatrics* ; Pyelonephritis ; Recurrence ; Retrospective Studies ; Urinalysis ; Urinary Tract Infections* ; Urinary Tract* ; Vesico-Ureteral Reflux

No abstract available.
Peritoneal Dialysis, Continuous Ambulatory* ; Pharmacokinetics* ; Renal Dialysis*

Methyl bromide is presently used as a fumigant for insects in soil, grains or fruit in storage or transport. It is a neurotoxic agent and has been responsible a number of deaths or acute poisonings among occupationally exposed persons. We report 2 patients, who had worked fumigation warehouse, presented with seizures and altered mental state. The serum concentrations of bromide were elevated 32.9 and 42.5 mg/l, respectively. Brain MRI showed bilateral symmetric high signal intensities in the splenium of corpus callosum, the globus pallidus, the quadrigeminal plate, the periaqueductal gray matter, the red nucleus, the substantia nigra, the medial lemniscus, the pontine tegmentum, the dentate nucleus, and the medulla. There was no brain lesion in the other patient. Appropriate and supervised handling of the chemical and regular education to workers are important to avoid the risk of methyl bromide poisoning.
Brain ; Edible Grain ; Cerebellar Nuclei ; Corpus Callosum ; Education ; Fruit ; Fumigation ; Globus Pallidus ; Humans ; Insects ; Magnetic Resonance Imaging ; Occupations ; Periaqueductal Gray ; Poisoning ; Red Nucleus ; Seizures* ; Soil ; Substantia Nigra ; Tectum Mesencephali

Simultaneous thrombosis of multiple coronary arteries in acute myocardial infarction is very rare in clinical settings. Its mechanism is not yet clear, but patients displaying multivessel simultaneous thrombosis tend to have poor clinical outcomes. Hence, it is important to recognize this condition and provide timely and proper management. We report a case of simultaneous thrombosis involving multiple coronary arteries in a patient with ST-segment elevation myocardial infarction.
Coronary Occlusion ; Coronary Vessels* ; Humans ; Myocardial Infarction* ; Thrombosis*

Simultaneous multi-vessel acute myocardial infarction is rare and has poor prognosis. We report a 70-year-old Korean man with an anteroseptal wall ST-elevation myocardial infarction presenting as ventricular tachycardia, sudden cardiac arrest and cardiogenic shock. After successful cardiopulmonary resuscitation, a coronary angiogram revealed three-vessel coronary disease; simultaneous total occlusions of the proximal left anterior descending artery (LAD) and the proximal left circumflex artery (LCX), and chronic total occlusion of the proximal right coronary artery. Primary percutaneous coronary intervention (PCI) of the LAD and LCX was successful and an intra-aortic balloon pump was inserted. Despite the timely and successful PCI result, he died on the 58th day in the hospital due to pneumonia with multiple organ failure.
Aged ; Arteries ; Cardiopulmonary Resuscitation ; Coronary Disease ; Coronary Occlusion ; Coronary Vessels ; Death, Sudden, Cardiac ; Humans ; Multiple Organ Failure ; Myocardial Infarction* ; Percutaneous Coronary Intervention ; Pneumonia ; Prognosis ; Shock, Cardiogenic ; Tachycardia, Ventricular

Background/Aims: Besifovir dipivoxil maleate (BSV) and tenofovir alafenamide fumarate (TAF) have been recently approved in Korea as the initial antiviral agents for chronic hepatitis B (CHB).However, the real-world outcome data for these drugs remain limited. Therefore, we conducted a noninferiority analysis using real-world data to compare the clinical outcomes of the two nucleotide analogs in treatment-naïve patients with CHB. Methods: We retrospectively investigated a cohort of patients with CHB who received BSV or TAF as first-line antiviral agents. The endpoints were virological response (VR) and liver-related clinical outcomes. Results: A total of 537 patients, consisting of 202 and 335 patients administered BSV and TAF, respectively, were followed up for 42 months. No significant difference was observed between the VRs of the patients from the two groups. The rates of biochemical response, virologic breakthrough, and incidence rates of hepatocellular carcinoma did not differ between the groups. However, the hepatitis B e antigen seroclearance rate was higher and the renal function declined less in the BSV group. Multivariable analysis indicated older age, alcohol abuse, cirrhosis and ascites, and lower serum HBV DNA level to be independently associated with increased hepatocellular carcinoma risk. The 1:1 propensity score-matched analysis with 400 patients showed VR rates of 85.0% and 88.7% in the BSV and TAF group patients, respectively, at 2 years. The absolute value of the 95% confidence interval for the difference (–0.04 to 0.12) satisfied the a priori limit of a noninferiority of 0.15. Conclusions BSV is noninferior to TAF in terms of VR, and their clinical outcomes are comparable to CHB.

Background/Aims: Sarcopenia negatively affects the prognosis of cirrhotic patients, but clinical implications of changes in muscle mass remain unclear. We aimed to elucidate its role in the prognosis of outpatients with cirrhosis. Methods: Patients with cirrhosis who underwent annual abdominal computed tomography (CT) for hepatocellular carcinoma surveillance were included in the prospective cohort. The L3 skeletal muscle index (SMI) was adopted as a proxy for the amount of skeletal muscle, and the rate of SMI change between inclusion and after 1 year (ΔSMI/yr%) was calculated. Results: In total, 595 patients underwent a second CT after 1 year. Among them, 109 and 64 patients had sarcopenia and Child-Pugh class B/C decompensation at inclusion, which changed to 103 and 45 at the 1-year follow-up, respectively. During a median follow-up of 30.1 months after 1 year, 86 patients had at least one cirrhosis complication, and 18 died or received liver transplantation. In the development of cirrhosis complications, ΔSMI/yr% was independently associated, even after adjusting for the Child-Pugh and model for end stage liver disease (MELD)-Na scores. In addition, ΔSMI/yr% showed a good predictive performance for the development of cirrhosis complications within 6 months after 1-year follow-up in all subgroups, with a cut-off of -2.62 (sensitivity, 83.9%; specificity, 74.5%) in the overall population. SMI at 1-year and Child-Pugh score were independent factors associated with survival. In addition, changes in sarcopenia status significantly stratified survival. Conclusion ΔSMI/yr% was a good predictor of the development of cirrhosis complications in outpatients with cirrhosis, independent of Child-Pugh and MELD scores.

PURPOSE: The aim of this study was to assess the clinical utility of the known CT signs of the traumatic rupture of the diaphragm. MATERIALS AND METHODS: CT scans and chest radiographs were retrospectively reviewed in 13 patients who had diaphragmatic rupture confirmed by surgery. On chest radiographs, the elevation of the diaphragm was evaluated. On CT, 1) discontinuity of the diaphragm, 2) lack of depiction of the diaphragm surrounding the herniated intraabdominal organs (absent diaphragm sign), and 3) fat seen lateral to the diaphragm (fat sign) were evaluated. RESULTS: Chest radiographs showed the elevation of the diaphragm in 11 patients (85%). CT scan showed absent diaphragm sign in 11 patients (85%), discontinuity of the diaphragm in 8 (62%), and fat sign in 7 (54%). All of 12 patients who had the left diaphragmatic rupture had one or more of the above findings. CONCLUSION: Discontinuity of the diaphragm, absent diaphragm sign, and fat sign may be helpful CT findings in the diagnosis of the traumatic rupture of the left diaphragm.
Diagnosis ; Diaphragm* ; Humans ; Radiography, Thoracic ; Retrospective Studies ; Rupture* ; Tomography, X-Ray Computed