The patient is a 62-year-old man with known diabetes mellitus who presented with a two-weeks-history of dyspnea, cough, and fever. He was diagnosed with a lung abscess in the right upper lobe and was treated with intravenous antibiotics. The patient's clinical and radiological findings improved within seven days after medical treatment. However, newly developed ground-glass opacity and infiltrations were observed in the right lower lung. Fourteen days after admission, the patient's symptoms and imaging finding became aggravated despite trestment with susceptible antibiotics for lung abscess. Trans-bronchial lung biopsy (TBLB) was performed in the lateral basal segment of the right lower lobe of the lung. A histologic photomicrograph showed organizing pneumonia, also called bronchiolitis obliterans with organizing pneumonia(BOOP), that became more definite as the terminal bronchioles and alveoli became occluded with masses of inflammatory cells and fibrotic tissue. The clinical symptoms and radiograph findings resolved quickly with prednisone treatment. We report a case of secondary organizing pneumonia diagnosed after TBLB following lung abscess treatment and provide a review of the literature.
Anti-Bacterial Agents ; Biopsy ; Bronchioles ; Bronchiolitis Obliterans ; Cough ; Diabetes Mellitus ; Dyspnea ; Fever ; Humans ; Lung Abscess* ; Lung* ; Middle Aged ; Pneumonia* ; Prednisone

Tracheostomy is one of the oldest surgical procedures in medical history. The indications for a tracheostomy include the relief of an upper airway obstruction, long-term mechanical ventilation, and decreased airway resistance to help wean the patient from mechanical ventilator support. Unfortunately, tracheostomy is also associated with a number of problems including, bleeding, infection, pneumothorax, and tracheal stenosis. A pneumothorax is an uncommon complication of a tracheostomy, and can result from direct injury to the pleura or positive pressure ventilation through a dislocation of the tracheostomy tube. We report an uncommon case of a tracheostomy-induced bilateral tension pneumothorax with a review of the literature.
Airway Obstruction ; Airway Resistance ; Dislocations ; Hemorrhage ; Humans ; Pleura ; Pneumothorax* ; Positive-Pressure Respiration ; Respiration, Artificial ; Tracheal Stenosis ; Tracheostomy* ; Ventilators, Mechanical

PURPOSE: This study focused on the evaluation of the relation between pollen concentration and the outbreak of allergic disease (symptom index), and this outcome would be necessary to upgrade risk grade for the pollen forecasting system. METHODS: Airborne particles carrying allergens, such as pollen, were collected daily at the Seoul and Guri area by using 7-day Burkard samplers for 6 years. A total of 596 Subjects were recruited from Hanyang University Seoul Hospital (n=144 for spring, n=139 for autumn), and Hanyang University Guri Hospital (n=157 for spring, n=156 for autumn). Symptom index was evaluated and recorded by phone calling to study subjects daily or asking questionnaire when they visit outpatient clinic every week. Statistical analysis of data was performed by using correlation coefficients and regression models with time series graph. RESULTS: Two peak seasons of pollen concentration were May and September in Korea. In skin prick tests, the sensitization rate to ragweed pollen was gradually increased in children. In the same period, sensitization rates to airborne pollen, especially oak, birch for spring, and Japanese hop for autumn were increased annually. There was a significantly relationship between symptom index of allergic patients and allergic pollen concentrations in this study. Especially symptom index was significantly correlated to the concentration of oak pollen of day 1 in spring and to the concentration of Japanese hop pollen of day 0 in autumn. CONCLUSION: Sensitization rates to pollens increased annually. There is a significant relationship between allergy symptom index and pollen concentration. There remains to confirm the Korean own risk grade of pollen allergy.
Allergens ; Ambrosia ; Ambulatory Care Facilities ; Asian Continental Ancestry Group ; Betula ; Child ; Forecasting ; Humans ; Hypersensitivity ; Korea ; Pollen* ; Rhinitis, Allergic, Seasonal ; Seasons ; Seoul ; Skin

Absorbed dose to water based protocols recommended that plane-parallel chambers be calibrated against calibrated cylindrical chambers in a high energy electron beam with R50>7 g/cm2 (E> or =16 MeV). However, such high-energy electron beams are not available at all radiotherapy centers. In this study, we are compared the absorbed dose to water determined according to cross-calibration method in a high energy electron beam of 16 MeV and in electron beam energies of 12 MeV below the cross-calibration quality remark. Absorbed dose were performed for PTW 30013, Wellhofer FC65G Farmer type cylindrical chamber and for PTW 34001, Wellhofer PPC40 Roos type plane-parallel chamber. The cylindrical and the plane-parallel chamber to be calibrated are compared by alternately positioning each at reference depth, zref=0.6R50-0.1 in water phantom. The DW of plane-parallel chamber are derived using across-calibration method at high-energy electron beams of 16, 20 MeV. Then a good agreement is obtained the DW of plane-parallel chamber in 12 MeV. The agreement between 20 MeV and 12 MeV are within 0.2% for IAEA TRS-398.
Electrons ; Water

Antineutrophilic cytoplasmic antibody (ANCA) associated vasculitis has been reported in Graves' disease patients treated with propylthiouracil (PTU). In most cases, it's renal involvements has been known as crescentic glomerulonephritis. A 41-year-old female patient with hyperthyroidism has been treated with PTU for 3 years. The patient had developed isolated hematuria and polyarthralgia with p-ANCA positivity, 6 months and 10 months after PTU treatment, respectively. She had been continuously treated with PTU until she was admitted at our hospital. Three months before admission, polyarthralgia was aggravated and purpura in both lower legs and hands was developed. Urinalysis revealed hematuria, proteinuria. Serologic evaluation showed p-ANCA positive. Skin biopy showed leukocytoclastic vasculitis and renal biopsy showed focal segmental glomerulosclerosis (FSGS). She was diagnosed as PTU-associated vasculitis with FSGS. Polyarthralgia and purpura were improved after discontinuing the PTU with prednisolone treatment but hematuria, proteinuria were not changed. We suggest that progression of PTU-associated focal segmental necrotizing glomerulonephritis to FSGS over two years might be due to continued PTU medication.
Adult ; Antibodies, Antineutrophil Cytoplasmic* ; Arthralgia ; Biopsy ; Cytoplasm ; Female ; Glomerulonephritis ; Glomerulosclerosis, Focal Segmental* ; Graves Disease ; Hand ; Hematuria ; Humans ; Hyperthyroidism ; Leg ; Prednisolone ; Propylthiouracil ; Proteinuria ; Purpura ; Skin ; Urinalysis ; Vasculitis*

OBJECTIVE: To compare the clinical characteristics and outcome of hysterectomy and angiographic embolization in the management of obstetrical hemorrhage unresponsive to conservative management. METHODS: We retrospectively analyzed 88 patients who underwent hysterectomy and 53 patients who underwent angiographic embolization for the management of obstetrical hemorrhage from January 1999 to July 2007. We analyzed the maternal characteristics and outcomes by the review of medical records and telephone interview. Nonparametric test was performed for comparison of both groups. RESULTS: Angiographic embolization for the management of obstetrical hemorrhage is on the increase year by year, consisting of about three quarters of total cases in the last year. The most common indication of hysterectomy was abnormal placentation (68.2%) followed by uterine atony (25.0%). For the embolization, the most common indication was uterine atony (54.7%) followed by abnormal placentation (17%). The median pre-operative hemoglobin was significantly lower in embolization group than hysterectomy group [8.3 (3.8~12.7 g/dL) vs. 10.8 (2.4~13.7 g/dL), P<0.001]. There was no difference in the total transfusion amount of packed RBC between the two groups. The median hospital stay was shorter in embolization group [8 (5~57 days) vs. 6 (3~14 days), P<0.001]. Overall success rate of embolization was 89% and procedure-related acute complications were not occurred. Of the total population, there was one maternal death in the hysterectomy group. We found that most women who underwent the embolization resume normal menstruation. CONCLUSION: Angiographic embolization for the management of obstetrical hemorrhage is more commonly performed in recent years. Angiographic embolization was associated with shorter hospital stay, reasonable success rate, and minimal complication rate.
Female ; Hemoglobins ; Hemorrhage ; Humans ; Hysterectomy ; Interviews as Topic ; Length of Stay ; Maternal Death ; Medical Records ; Placentation ; Postpartum Hemorrhage ; Retrospective Studies ; Uterine Inertia