No abstract available.

BACKGROUND: Various topical antisepties are often used for postoperative care of surgical wounds. But the effect of these agent on wound healing remains an area of debate. OBJECTIVE: The purpose of this study was to evaluate the biological effects of hydrogen peroxide on human keratinocytes in vitro, specifically on keratinocyte viability, migration and proliferation. METHODS: To evaluate the effects of hydrogen peroxide on keratinocyte viability, migration and proliferation, sulforhodamine B test, migration assay, and thymidine incorporation assay were performed, respectively. Diluted solutions of 30% hydrogen peroxide( X 50, X 100, X 500, X 1000) were used as testing material and growth medium alone as a control.
Humans* ; Hydrogen Peroxide* ; Hydrogen* ; Keratinocytes* ; Postoperative Care ; Thymidine ; Wound Healing* ; Wounds and Injuries*

This study was investigated to assess the difference of facial height and occlusal plane inclination between normal occlusion group and class 11 malocclusion group. The subjects consisted of 50 normal occlusion (male 25, female 25) and 50 class II(male 25, female 25) malocclusion patients. All subjects are adult. lateral cephalogram was taken with standard method, traced, and digitized for each subjects. The computerized statiscal analysis was carried out with SPSS program. The results were as follows: 1. In class II malocclusion group, variables significant different from normal occlusion group were as follows SN-FOP, FH-BOP, MP-BOP, AB-BOP, AB-FOP, Facial plane-BOP, FP-FOP. 2. In class II malocclusion group, the posterior facial height -especially posterior lower facial height-was significantly smaller than normal occlusion group.( P < 0.05) 3. In class II malocclusion group, the angles bEStween occlusal plane and upper and lower incisor, the angle between upper molar and bisected occlusal plane we e significantly larger than those of normal occlusion group. (P < 0.05) 4. LI to Mandibular plane (mm) was a unique factor of occlusal plane position that showed significant difference in class -Il1 malocclusion group. 5. The correlation between overbite and occlusal plane inclination existed in class II malocclusion group, but the correlation didn't exist in normal occlusion group.
Adult ; Dental Occlusion* ; Female ; Humans ; Incisor ; Malocclusion ; Molar ; Overbite

BACKGROUND: Noninvasive estimation of pulmonary artery pressure is an important component of echocardiographic studies. A number of methods are available for estimation of pulmenary pressure, each with varying degrees of reported accuracy. To assess accuracy and difficulties, noninvasive pulmonary artery pressure estimates were performed in infants and children with congenital heart diseases. METHODS: Noninvasive estimates from 8 methods were compared with catheterization measurements. Systolic pressure was estimated by the Burstin method and from perak tricuspid regurgitation velocity, and also from systolic pressure gradients through the VSD(ventricular septal defect) and PDA(patent ductus arteriosus). Mean pressure was estimated by acceleration time divided by ejection time measured from Koppler spectrum obtained at the right ventricular out flow tract. Diastolic pressure was estimated from pulmonary regurgitation velocity spentrum at end-diastolic, and also from diastolic pressure gradient through the patent ductus arteriosus. RESULTS: IN systolic pressure, Burstin and tricuspid regurgitation velocities estimates correlated significantly(r=0.92, 0.90 respectively), whereas VSD and PDA estimates correlated less well with catheterization estimates(r=0.83, 0.65 respectively). The mean pressure, measured from RVOT(right ventricular outflow tract) Doppler spectrum corresponded well with catheterization pressure(r=0.89), whereas those obtained from the main pulmonary artery correlated less well(r=0.74). The diastolic pressure estimates from pulmonary regurgitation velocity spectrum, revealed good correlation(r=0.79), but those from diastolic Doppler spectrum at PDA correlated less well with catheterization estimates(r=0.63). CONCLUSION: All of eight Doppler echocardiographic methods seemed to be easily performable for estimation of pulmonary artery pressure. But, the degree of accuracy was variable. Because a pressure estimante from only a single method may be in error, care should be taken in combining use of other(one or two) methods.
Acceleration ; Blood Pressure ; Catheterization ; Catheters ; Child ; Ductus Arteriosus, Patent ; Echocardiography* ; Echocardiography, Doppler ; Heart Diseases ; Humans ; Infant ; Pulmonary Artery* ; Pulmonary Valve Insufficiency ; Tricuspid Valve Insufficiency

A histopathologic study including iramunohistochemical stains was made in 30 patients who were presented with gastrointestinal lymphoma. The occurrence was 13 in the stomach, 8 in the ileocecum, 7 in the small intestine and 2 in the colon. The disease more frequently affected males than females and the average ages were 53 years in the patients of gastric lymphoma and 44 years in the patients of intestinal lymphoma. Gastric lymphomas were usually presented with a single lesion, and the antrum and/or body were the most common sites. But intestinal lymphomas were presented with a single or multiple lesion, and the ileocecum was the most common site. The most common gross type of gastrointestinal lymphomas was the ulceroinfiltrating type and most are of the diffuse large noncleaved cell type of B-cell lymphoma, histologically. There were 2 cases of T-cell lymphoma presented in the intestine as the superficially ulcerative gross pattern and diffuse immunoblastic cell type. The distinct MALToma was seen in only one case of stomach but the feature was partially remained in each two cases of stomach and intestine. Their coexistent findings may suggest that diffuse large of immunoblastic component arises through blastic transformation of the low-grade M ALToma component.
Female ; Male ; Humans

BACKGROUND: Induced hypotension is effective in decreasing blood loss and providing better visibility in the surgical field. Extensive epidural block to T4 with intravenous infusion of low-dose epinephrine allows mean arterial pressure to 50 mmHg. We investigated the effects of hypotensive epidural anesthesia comparing with normotensive epidural anesthesia during total hip arthroplasty. METHODS: 40 patients scheduled for total hip arthroplasty under epidural anesthesia were randomly divided into two groups. In hypotensive group, 0.5% bupivacaine 20cc was injected into L1-2 epidural space and if sensory block reached to T4, then epinephrine 1~5 g/min was intravenously injected with continuous infusion pump. As a result, mean arterial pressure was maintained 50 mmHg, and heart rate, 55~80bpm. In normotensive group, 0.5% bupivacaine 20cc was injected into L4-5 epidural space, and sensory block reached to T8. Therefore blood pressure was maintained within 20% of preoperative baseline. RESULTS: There was apparent difference in blood loss between two groups (hypotensive group: 259 +/- 75 ml, normotensive group: 803 +/- 144*ml) (*:p<0.05). In addition, in the case of hypotensive epidral group, transfusion was not required and CVP, heart rate were not changed postoperatively. Cardiac, renal, and cerebral function were preserved too. CONCLUSIONS: Hypotensive epidural anesthesia with low dose of epinephrine infusion is safely lowering mean arterial pressure to 50 mmHg. This technique is associated with low blood loss, reduction in perioperative transfusion requirements, and has no side effects on CNS, liver, kidney and heart function.
Anesthesia, Epidural* ; Arterial Pressure ; Arthroplasty, Replacement, Hip* ; Blood Pressure ; Bupivacaine ; Epidural Space ; Epinephrine ; Heart ; Heart Rate ; Humans ; Hypotension ; Infusion Pumps ; Infusions, Intravenous ; Kidney ; Liver

CT has revolutionized the evaluation and management of patients with head injuries. CT is noninvasive and rapidly provides accurate information regarding the presence, extent and nature of intracranial lesions resulting from trauma. We have reviewed the CT scans of 114 patients, who got head injury with confirmed to skull fracture in plain film. The result were as follows; 1. Of all cases, traffic accident was the most frequent cause and in children fall down was more than 50%. 2. Compound linear fracture was the most frequent type fractures in plain skull film. 3. Of all 114 case, epidural hematoma was 16%, subdural hematoma was 18.4%, intracerebral hematoma was14.4%, subdural hygroma was 2.4%, normal finding was 50%. 4. Mortality rate was 13.2%. 5. Fracture was detected by CT about 28.9%, depression fracture was more easily detected in CT. 6. Incidence rate of countercoup lesion was14.0% and mortality rate was higher than same site lesion, 7. The shape of epidural hematoma was biconvex in 75%, planoconvex in 25%. 8. The shape of subdural hematoma was crescentic shape 82.6%, biconvex shape 8.7%, planoconvex shape 8.7%.
Accidents, Traffic ; Brain ; Child ; Craniocerebral Trauma ; Depression ; Head ; Hematoma ; Hematoma, Subdural ; Humans ; Incidence ; Mortality ; Skull Fractures ; Skull ; Subdural Effusion ; Tomography, X-Ray Computed

BACKGROUND: Approxinately 30%-70% of patients hospitalized receive intravenous(IV) therapy[l-4], It is generally believed that many hospitalized patients experienced IV therapy related complications-including infiltration(swelling), phlebitis, pain, suppurative phlebitis and bacterernia. These complications may be critical to ill children in the hopsital. This study was done to assess the IV therapy related complications and characteristics od the phlebitis of the hospitalized children. METHODS: We collected date prospectively from December 8, 1994 to December 14 at the tertiary care hospital in Seoul. The subhects of this study were children who got new IV catheters during that period. RESULTS: There were 306 new cases(176 children) that got IV therapy and which meant 63.8 per 100 discharge patients. Male(62.8%), pediatric surgery patients(70.6%) were more than female(37.2%) and pediatrucs(28.4%) respectively. The usually used IV sites were the upper extermities(71.3%). Among various purposes of IV therapy, the most common was to administer drugs(74.2%) including antibiotics, and next was to keep vein open (41.2%). By the way, 172 cases(56.3%) had IV related complications and 14 resulted in phlebitis. The most common IV related complication of hospitalized children was swelling(35.1%). The incidence of IV related complication of hospitalized children was swelling(35.1%). The incidence of IV phlebits was higher in pediaterics than in pediatrid surgery (P<0.05), over 12 years old than under that aged patients (P<0.01). CONCLUSION: This study revealed that many hospitalized children experienced the IV related complications. In order to decrease the IV related complications, reduce the incidence and thorough care is recommanded.
Anti-Bacterial Agents ; Catheters ; Child* ; Child, Hospitalized ; Humans ; Incidence ; Phlebitis ; Prospective Studies ; Seoul ; Tertiary Healthcare ; Veins

No abstract available.
Biological Markers/*blood ; Carcinoma, Hepatocellular/*diagnosis ; Humans ; Liver Neoplasms/*diagnosis ; Protein Precursors/*blood ; Prothrombin ; Tumor Markers, Biological/*blood

PURPOSE: This study was designed to investigate the difference of oral mucositis in hospitalized cancer patients receiving chemotherapy according to characteristics. METHODS: Data were collected from March 1 to April 25 2012 using questionnaires, and the participants were 177. The Oral Assessment Guide (OAG) by observation and The Oral Mucositis Daily Questionnaire (OMDQ) by self-report were used to measure oral mucositis. The data were analyzed using SPSS 18.0. RESULTS: Moderate to severe oral mucositis measured by OAG observation were 94.9% in hospitalized cancer patients receiving chemotherapy, frequently complaints of mouth and throat soreness measured by OMDQ was 42.4%, and intensity of mouth and throat soreness measured by OMDQ was 0.65 out of 10. There were statistically significant differences in the prevalence of oral mucositis according to nutrition state, frequency of chemotherapy, experience of oral examination, combination treatment, and number of chemotherapeutic agents. CONCLUSION: Many hospitalized cancer patients receiving chemotherapy experienced oral mucositis. Cancer patients receiving chemotherapy with poor nutritional status, more frequent chemotherapy and combination treatments should have a more meticulous oral care. So there needs to be an appropriate assessment tool and prevention protocol for oral mucositis that considers related factors.
Diagnosis, Oral ; Humans ; Mouth ; Nutritional Status ; Pharynx ; Prevalence ; Stomatitis ; Surveys and Questionnaires