A study of concentration smear, culture for AFB and sensitivity test for antituberculous drugs was carried out in 810 patients who had been admitted in SNUH in the period of 12 months from January 1976 to December 1976. Acid-fast bacilli was confirmed in 110 cases (13.6%) by concentrated direct smear and in 88 cases(10.9%) by culture, and concomitantly sensitivity test was performed in 26 isolated cases. Streptomycin, INH, PAS, Kanamycin and Ethionamide were rather less sensitive to the strains of Mycobacterium tuberculosis, but all strains obtained during the period of this study were highly sensitive to Rifampicin.
Ethionamide ; Humans ; Kanamycin ; Mycobacterium tuberculosis ; Mycobacterium ; Rifampin ; Streptomycin

PURPOSE: In order to classify the involving patterns of maxillary sinus aspergillosis on CT that will be an important guidance for functional endoscopic sinus surgery(FESS) and to evaluate CT findings of each pattern. MATERIALS AND METHODS: We reviewed CT findings of 37 cases of maxillary sinus aspergillosis which were confirmed pathologically. These were classified into three patterns according to the location:the maxillary pattern(I), the infundibular pattern(11), and combined pattern(Ill). All cases were correlated with FESS findings. We also evaluated CT density, presence of contrast enahncement and calcifications, and surrounding bony changes of each pattern. RESULT: The combined pattern was most commonly seen in 24 of 37 cases(64.9%). The maxillary pattern was identified in 8(21.6%), with 5(13.5%)cases demonstrating the infundibular patttern. These patterns were consistent with FESS findings. Calcifications were seen in 28 cases(75.7%). 31 cases(83.8%) revealed hypodensity and 16cases among them showed peripheral enhancement. Central high density with peripheral low density rim was shown in 25%(2/8) of the maxillary pattern and 12.5%(3/24) of combined patttern. Surrounding bony changes were noted mainly in infundibular pattern and combined pattern. Erosion of uncinate process showed all cases of both patterns. Erosion or elevation of ethmomaxillary plate was seen in 3 of 5 cases of infundibular pattern and all cases of the combined pattern. CONCLUSION: CT fidnings of maxillary sinus aspergillosis can be classified into 3 patterns according to their distribution. These classification could be helpful for planning FESS approach. Calcifications are the most characteristic findings of maxillary sinus aspergllosis whereas CT density or enhancement pattern do not contribute to diagnosis.
Aspergillosis* ; Classification ; Diagnosis ; Maxillary Sinus*

The common bile duct and the duct of Wirsung cojoin at the level of the duodenum, forming the major. papilla of Vater. Existence of a double major papilla, i.e., two neighboring independent papillary structure:, is infrequent. In our endoscopy unit we have experienced one case of double papilla of Vater wherein canulation of the common bile duct and pancreatic duct could be accom plished through either orifice independently.
Common Bile Duct ; Duodenum ; Endoscopy ; Pancreatic Ducts

A clinical analysis was done on 134 cases with bronchial asthma who were admitted to the Department of Pediatrics Yeungnam University from May 1987 to October 1991. The results were as follows: 1) The peak age of bronchial asthma was under 2 years. The sex ratio of male to female was 2.9:1. 2) The outbreak of bronchial asthma was most common in fall, especially in September. 3) The past history of other allergic diseases were present in 22.4% of patients (30/134 cases), and the previous bronchiolitis in infancy were experienced in 12.7% of patients (17/134 cases). 4) According to the skin test for allergens done by RAST, the most common allergens were Mites and House dust. 5) Eosinophilia (T.E.C>250/min) was found in 29.1%t of patients, and elevated lgE level (>200 IU/ml) was found in 63.2% of patients. 6) No significant differences in the serum lgE level were found between male and female patients. No significant differences in the serum lgE level were found between asthma patients with and without other allergic diseases. 7) The serum lgE level of school aged patients was significant higher than that of preschool aged (p<0.01).
Allergens ; Asthma* ; Bronchiolitis ; Dust ; Eosinophilia ; Female ; Humans ; Male ; Mites ; Pediatrics ; Sex Ratio ; Skin Tests

PURPOSE: The purpose of this study was to investigate the clinical manifestations and 5-year natural course of recurrent bronchiolitis or reactive airways disease (RAD) in infants. METHODS: We reviewed the medical records of infants with recurrent bronchiolitis from January 2007 to December 2007 at The Catholic University of Korea St. Mary's Hospital in Incheon, South Korea. Additionally, we telephoned their parents to confirm their present medical statuses. RESULTS: Sixty-three subjects with recurrent bronchiolitis were identified. The mean age at admission was 8.1 months and the number of males was 44 (69.8%). Of the 63 infants with recurrent bronchiolitis, inhaled corticosteroids, bronchodilators, and antibiotics were given to 62 (98.4%), 53 (84.1%), and 40 (63.5%), respectively. Among the total 63 subjects, we were able to contact the parents of 45 children by telephone. None of these children had been hospitalized during the previous one year period due to respiratory infections or for other medical reasons. Of the 45 subjects we were able to contact, 38 (84.4%) had not experienced any further respiratory difficulties at all. Five (11.1%) had been diagnosed with allergic rhinitis while two (4.4%) were being managed for asthma. CONCLUSION: Most children who presented with recurrent episodes of bronchiolitis in infancy did not show any further respiratory difficulties after five years of age.
Adrenal Cortex Hormones ; Anti-Bacterial Agents ; Asthma ; Bronchiolitis* ; Bronchodilator Agents ; Child ; Follow-Up Studies ; Humans ; Incheon ; Infant* ; Korea ; Male ; Medical Records ; Parents ; Respiratory Tract Infections ; Rhinitis ; Telephone

The purposes of this study were to evaluate the effect of adhesive property on microtensile bond strength and to determine the failure mode. Flat occlusal dentin surfaces were prepared using low-speed diamond saw. The dentin was etched with 37% phosphoric acid. The following adhesives were applied to the etched dentin to manufacturer's directions; Scotchbond Multi-Purpose in group SM, Prime&Bond NT in group NT, Scotchbond Multi-Purpose followed by Tetric-flow in group TR. After adhesive application, a cylinder of resin-based composite was built up on the occlusal surface. Each tooth was sectioned vertically to obtain the 1 x 1mm2 "sticks". Microtensile bond strength were determined. Each specimen was observed under stereomicroscope and scanning electron microscope (SEM) to examine the failure mode. Data were analyzed using one way ANOVA. The results of this study were as follows; 1. The microtensile bond strength value were; group SM (18.98 +/- 3.01MPa), group NT (16.01 +/- 4.82MPa) and group TR (17.56 +/- 3.22MPa). No significant statistical differences were observed among the groups (P>0.05). 2. Most of specimens showed mixed failure. In group TR, there was a higher number of specimens showing areas of cohesive failure in resin.
Adhesives* ; Dentin* ; Diamond ; Humans* ; Tooth

Two-hundred cases of brachial plexus block by parascalene technique for the surgery of upper extremity, shoulder and/or neck were evaluated for the period from November, 1989 to October, 1990 at the Department of Anesthesiology, Hallym University, Kangdong Sacred Heart Hosipital in Seoul, Korea. Local anesthetics we used in this technique were mixture of equal amount of 2% lidocaine and 0.5% bupivacaine with 1: 200,000 epinephrine. Total amount of local anesthetics injected were varies from 20 to 40 ml for each block. The results were as follows: 1) Of the 200 Patietns, 153(76,5%) were male and 47(23.5%) were female. Their ages ranged from 5 to 83 years. One hundred twenty-one or 60.5% of this total group's ages fell between 20 to 39 years. 2) The most common site of operation was the hand; ll6 cases of the 200 blocks(55.3%). 3) Paresthesia was most often elicited at the superior nerve trunk; 80 cases of the 200 blocks (40%). 4) The average depth of needle from the skin to eliciting the parethesia is 1.954 cm. 5) The onset of anesthesia was within 5 minutes in 166.cases(84,4%). 6) The duration of anesthesia ranged from 180 to 1,800 minutes, and average was 657+/-113 minutes. 7) The extent of anesthesia by sensory dermatomes were average from cervical 2.3+/-1.0 to thoracic 2.90+/-5. 8) Shoulder surgery(e.g. clavicle fracture) and neck biopsy were performed successfully by this technique. 9) Parascalene approach to the brachial plexus has proven both safe and reliable. It provide satisfactory anesthesia of the upper extremity, shoulder and neck in 98.5%(l97 cases) of the 200 patients. 10) Complications of parascalene brachial plexus block were 2 cases of Horners syndrom, 1 cases of recurrent laryngeal nerve paralysis and 2 cases of subclavian artery puncture. We presumed that the complications other than Horners syndrome were due to technical error.
Anesthesia ; Anesthesiology ; Anesthetics, Local ; Biopsy ; Brachial Plexus* ; Bupivacaine ; Clavicle ; Epinephrine ; Female ; Hand ; Heart ; Horner Syndrome ; Humans ; Korea ; Lidocaine ; Male ; Neck ; Needles ; Paralysis ; Paresthesia ; Punctures ; Recurrent Laryngeal Nerve ; Seoul ; Shoulder ; Skin ; Subclavian Artery ; Upper Extremity

Two-hundred cases of brachial plexus block by parascalene technique for the surgery of upper extremity, shoulder and/or neck were evaluated for the period from November, 1989 to October, 1990 at the Department of Anesthesiology, Hallym University, Kangdong Sacred Heart Hosipital in Seoul, Korea. Local anesthetics we used in this technique were mixture of equal amount of 2% lidocaine and 0.5% bupivacaine with 1: 200,000 epinephrine. Total amount of local anesthetics injected were varies from 20 to 40 ml for each block. The results were as follows: 1) Of the 200 Patietns, 153(76,5%) were male and 47(23.5%) were female. Their ages ranged from 5 to 83 years. One hundred twenty-one or 60.5% of this total group's ages fell between 20 to 39 years. 2) The most common site of operation was the hand; ll6 cases of the 200 blocks(55.3%). 3) Paresthesia was most often elicited at the superior nerve trunk; 80 cases of the 200 blocks (40%). 4) The average depth of needle from the skin to eliciting the parethesia is 1.954 cm. 5) The onset of anesthesia was within 5 minutes in 166.cases(84,4%). 6) The duration of anesthesia ranged from 180 to 1,800 minutes, and average was 657+/-113 minutes. 7) The extent of anesthesia by sensory dermatomes were average from cervical 2.3+/-1.0 to thoracic 2.90+/-5. 8) Shoulder surgery(e.g. clavicle fracture) and neck biopsy were performed successfully by this technique. 9) Parascalene approach to the brachial plexus has proven both safe and reliable. It provide satisfactory anesthesia of the upper extremity, shoulder and neck in 98.5%(l97 cases) of the 200 patients. 10) Complications of parascalene brachial plexus block were 2 cases of Horners syndrom, 1 cases of recurrent laryngeal nerve paralysis and 2 cases of subclavian artery puncture. We presumed that the complications other than Horners syndrome were due to technical error.
Anesthesia ; Anesthesiology ; Anesthetics, Local ; Biopsy ; Brachial Plexus* ; Bupivacaine ; Clavicle ; Epinephrine ; Female ; Hand ; Heart ; Horner Syndrome ; Humans ; Korea ; Lidocaine ; Male ; Neck ; Needles ; Paralysis ; Paresthesia ; Punctures ; Recurrent Laryngeal Nerve ; Seoul ; Shoulder ; Skin ; Subclavian Artery ; Upper Extremity

PURPOSE: This study was to evaluate the beam quality of intraoral X-ray equipments used at Yonsei University Dental Hospital(YUDH) using the half value layer(HVL) and the characteristic curve of intraoral standard X-ray film. MATERIALS AND METHODS: The study was done using the intraoral X-ray equipments used at each clinical department at YUDH. Aluminum filter was used to determine the HVL. Intraoral standard film was used to get the characteristic curve of each intraoral X-ray equipment. RESULTS: Most of the HVLs of intraoral X-ray equipments were higher than the least recommended thickness, but the REX 601 model used at the operative dentistry department and the X-707 model used at the pediatric dentistry department had HVLs lower than the recommended thickness. The slopes of the characteristic curves of films taken using the PANPAS 601 model and REX 601 model at operative dentistry department, the X-70S model of prosthodontic dentistry department, and the REX 601 model at the student clinic were relatively low. CONCLUSION: HVL and the characteristic curve of X-ray film can be used to evaluate the beam quality of intraoral X-ray equipment. In order to get the best X-ray films with the least radiation exposure to patients and best diagnostic information in clinical dentistry, X-ray equipment should be managed in the planned and organized fashion.
Aluminum ; Dentistry ; Dentistry, Operative ; Humans ; Pediatric Dentistry ; Prosthodontics ; X-Ray Film

OBJECTIVE: This study is aimed to see ultrastructural changes of pineal gland in rats exposed to microwaves. METHODS: We conducted an experiment by exposing rats at the electromagnetic wave frequency of 2.45GHz, using with an EMR(electromagnetic radiation) emitting apparatus to study the effect of electromagnetic wave on the pineal gland. Paying especial attention to measure damages to pineal gland cells in the brain, we set the levels of EMR according to the duration of electromagnetic wave exposure at 1.2 joules(20min exposure), 2.4 joules(40min exposure), 3.6 joules(60 min exposure), and 4.8 joules(80min exposure) per 1cm2. RESULTS: Compared with normal cells, main histologic changes were observed with an electron microscope included swelling of the pineal gland cells, a decrease in the electron density of interstitial tissue, an increase in the distances between pineal gland cells, an increase in number of lipid-droplets, and swelling of mitochondria. Especially in those pineal cells exposed to EMR for 80 min, severe swelling of mitochondria and a slight increase in lysosome were observed. CONCLUSION: The authors could identify the harmful effect of microwave by observing abnormal ultrastructural changes of pineal cell in rat according to the increasement of electromagnetic radiation.
Animals ; Brain ; Electromagnetic Radiation ; Lysosomes ; Microwaves* ; Mitochondria ; Pineal Gland* ; Rats*