No abstract available.
Animals ; Antigen-Antibody Reactions* ; Guinea Pigs* ; Guinea* ; Lung* ; Mast Cells*

BACKGROUND: Handgrip and cold pressor test may increase the afterload of the heart. And in left ventricular hypertrophy, it is known that mitral flow pattern is affected by decreased left ventricular compliance. We investigated the effects of handgrip and cold pressor test on mitral flow pattern in patients with left ventricular hypertrophy. METHODS: Handgrip and cold pressor test were performed in 12 subjects with left ventricular hypertrophy and in 14 healthy normal subjects. In supine position, blood pressure, heart rate and Doppler echocardiographic parameters(early peak flow velocity : E, atrial peak flow velocity : A) were obtained at rest, 1 and 3 minutes after the onset of tests respectively. RESULTS: In both groups, handgrip and cold pressor test increased blood pressure slightly without a statistical significance. In left ventricular hypertrophy group, there were significant increments in heart rates at 1 minute of handgrip (78+/-12min-1, p<0.001) and cold pressor test(77+/-7min-1, p<0.05) as compared to that at rest (73+/-12min-1). Mitral flow velocities did not show significant change after the tests in control group. A waves after 1 minute of handgrip(85.2+/-18.4cm/sec, p<0.05) and cold pressor test (87.3+/-17.8cm/sec, p<0.001) showed significant increases as compared to that at rest (79.1+/-14.9cm/sec) in left ventricular hypertrophy group whereas E waves did not. CONCLUSION: Although handgrip and cold pressor tests did not affect the mitral flow significantly in control group, each test raised A waves in left ventricular hypertrophy group. These results suggest that increased A waves may be due to a rise in afterload and decreased left ventricular compliance caused by handgrip and cold pressor test in left ventricular hypertrophy group.
Blood Pressure ; Compliance ; Echocardiography ; Heart ; Heart Rate ; Humans ; Hypertrophy, Left Ventricular* ; Supine Position

PURPOSE: As the number of children who attend child care centers has increased, concerns has increased about the effect of child day care on childhood illness. This study was conducted to examine the relationship between experience in child care and common infectious diseases in children under 5 years of age. METHODS: Data were collected by surveying 1,000 respondents with children under age 5 through online interviews using a structured questionnaire. The contents of the survey were composed of demographic characteristics, child care facilities usage, experience in infectious diseases, and immunization status. RESULTS: Among the 1,000 children <5 years of age, 78.5% attended a child care facility. Rates of common communicable illnesses were higher in children in child care than for children reared exclusively at home. The predominant communicable diseases which the respondents' children experienced, in order of decreasing frequency, were gastroenteritis (47.1%), otitis media (41.8%) and pneumonia (19.1%). The immunization rate of vaccines that are not included the national immunization program (NIP) (Haemophilus influenzae type b vaccine - 76.6%, hepatitis A vaccine - 63.3%, pneumococcal vaccine - 59.4%, rotavirus vaccine - 43.1%) was lower than that of the NIP vaccines (90.4%). CONCLUSION: Children in child care experience more bouts of common infectious disease, so nationwide policies to prevent or to control the spread of infectious agents in a child-care should be available and appropriate immunization should be emphasized as the most effective method for the control of infectious disease for children.
Child ; Child Care ; Communicable Diseases ; Surveys and Questionnaires ; Day Care, Medical ; Gastroenteritis ; Hepatitis A Vaccines ; Humans ; Immunization ; Immunization Programs ; Influenza, Human ; Otitis Media ; Pneumonia ; Rotavirus ; Vaccination ; Vaccines

PURPOSE: The aim of this study was to determine the frequency, epidemiology and the clinical manifestation of human metapneumovirus (hMPV) infection in Korean children. METHODS: From February 2010 to January 2012, we collected nasopharyngeal aspiration from 1,554 children who were hospitalized for acute lower respiratory tract infections at the Department of Pediatrics, Severance Children's Hospital. hMPV was detected by performing reverse transcriptase-polymerase chain reaction (RT-PCR). The medical records of the patients with positive results were retrospectively reviewed. RESULTS: We detected hMPV in 99 of the 1,554 hospitalized children. The mean age of the hMPV infected children was 25 months, and 87% of the illnesses occurred between April and June. The most common diagnoses were pneumonia (73%) and bronchiolitis (16%). The clinical manifestations included cough, fever, respiratory distress, hoarseness, tachypnea, and wheezing. Coinfection with other respiratory viruses was found in 43 children (43%). CONCLUSION: hMPV is one of the major virus causing acute respiratory tract infection in the age between 13 months and 48 months old with peaks during April to June. Reports of hMPV in Korea has been increasing but additional studies are required to define the epidemiology and the extent of disease caused by hMPV to determine future development of this illness in Korean children.
Bronchiolitis ; Child ; Child, Hospitalized ; Coinfection ; Cough ; Fever ; Hoarseness ; Humans ; Korea ; Medical Records ; Metapneumovirus ; Pediatrics ; Pneumonia ; Respiratory Sounds ; Respiratory Tract Infections ; Retrospective Studies ; Tachypnea ; Viruses

No abstract available.
Prostate* ; Prostatectomy* ; Prostatic Neoplasms*

No abstract available.
Prostate* ; Prostatectomy* ; Prostatic Neoplasms*

PURPOSE: Human bocavirus (hBoV), a recently discovered virus, has been detected in children with respiratory tract infections worldwide. The aim of this study was to analyze the frequency and molecular phylogeny of hBoV in the respiratory samples of children with acute respiratory tract infections in 2010. METHODS: Nasopharyngeal samples were collected from 953 children with lower respiratory tract infections at Severance children's hospital in Korea from January 2010 to December 2010. We applied the multiplex PCR technique for the identification of 12 respiratory viruses from the samples. Among the total specimens, hBoV positive samples were subjected to phylogenetic analysis by sequencing a fragment of the VP1/VP2 gene junction. RESULTS: hBoV was detected in 141 (14.8%) among 953 patients. The 61.7% of hBoV-positive samples were found to co-exist with other respiratory viruses. The results of phylogenetic analysis showed that all 141 hBoV-positive isolates were identified as hBoV 1, revealing a high similarity among the isolates (>98%). CONCLUSION: hBoV 1 with minimal sequence variations circulated in children with acute respiratory infections during 2010. More research is needed to determine the clinical severity and outcomes of the minimal sequence variations.
Child ; Child, Hospitalized ; Human bocavirus ; Humans ; Korea ; Multiplex Polymerase Chain Reaction ; Phylogeny ; Respiratory System ; Respiratory Tract Infections ; Viruses

Closed interlocking nailing has become a common method of treatment of femoral fractures in adults. Interlocking nailing had a tendency toward rotational deformity and shortening. Therefore, we determined anteversion of the femoral neck after closed IM nailing of the femoral fractures. Femoral rotational deformity in both leg was determined by the construction of a line through the femoral neck and another through the transcondylar plane of the distal portion of the femur, using the CT scanning. We performed a retrospective study of 15 patients treated with closed IM nailing for femoral shaft fractures from 1989 to 1994. 1. The average differences in anteversion angle was 12.9 degree. 2. 3 cases(50%) in 6 cases that have difference more than 15° are accompanied with ispilateral injury of the knee joint and the lower leg. 3. Angle difference of the rotational deformity of proximal or distal femoral fractures is 15.5° which is 3.5° larger than that of fractures of femoral midshaft, 12.0°.
Adult ; Congenital Abnormalities ; Femoral Fractures ; Femur ; Femur Neck ; Humans ; Knee Joint ; Leg ; Methods ; Retrospective Studies ; Tomography, X-Ray Computed

The heart was considered to be relatively resistant to ionizing irradiation in the range of doses used in radiation therapy before follow up and review of a large number of patients who had undergone mediastinal irradiation and survived for several years. Cardiac complications after mediastinal irradiation include coronary artery disease, valvular heart disease, and acute and chronic pericardial disease. Pericarditis and pericardial effusion have been regarded as the most common side effects of cardiac irradiation. However, modern techniques of irradiation, dose fractionation, and reduction of the heart volume irradiated in most malignancies have substantially reduced the frequency of cardiac complications including pericarditis. Therefore, effusive- constrictive or constrictive pericarditis is less often noted after the completion of radiation therapy. Delayed appearance of effusive-constrictive pericarditis after mediastinal irradiation has not been commonly recognized by physicians. We recently experienced a case of delayed pericarditis with effusion occurring 36 months after radiation therapy for young patient with Hodgkin's disease. Mediastinal irradiation for Hodgkin's disease increases the risk of subsequent death from heart disease. Risk increased with high mediastinal doses, minimal protective cardiac blocking, young age at irradiation, and increasing duration of follow-up. Consequently, the current practice of using a subcarinal block and multiple portals, with irradiation through both anterior and posterior fields, may be expected to lead to a decline in the incidence and severity of cardiac abnormality after irradiation.
Cardiac Volume ; Coronary Artery Disease ; Dose Fractionation ; Follow-Up Studies ; Heart ; Heart Diseases ; Heart Valve Diseases ; Hodgkin Disease* ; Humans ; Incidence ; Pericardial Effusion ; Pericarditis* ; Pericarditis, Constrictive

Pituicytoma is a rare solid benign tumor of the sellar and/or suprasellar region originating from the pituicytes of the neurohypophysis or infundibulum, which is not differentiated from a pituitary adenoma that is diagnosed mostly in the sellar and/or suprasellar region. In addition, cystic tumors are very rare and have not been reported due to their solid and hypervascular natures. A 33-year-old man presented with a chronic headache which exacerbated recently. MRI was performed and revealed a cystic tumor in the sellar and suprasellar regions with a small parenchymal island in the cyst compressing the optic chiasm. The endoscopic endonasal transsphenoidal approach was used to remove the tumor. Immunohistochemical staining was positive for thyroid transcription factor 1, S-100 protein, and glial fibrillary acidic protein. The pituicytoma was diagnosed based on histologic findings. The authors review herein the literature on clinical presentation, diagnosis, surgical management, and outcome.