No abstract available.
Child* ; Humans

PURPOSE: To characterize the MR findings of hypoxic-ischemic brain injury and to assess the value of the MR imaging. MATERIALS AND METHODS: SE T1 -, T2-weighted, and IR brain MR images of 44 infants and children with the past history of perinatal hypoxic insults were reviewed. Abnormal brain MR findings of 8 patients with birth history of prematurity and 36 patients with birth history of full-term/posterm including 7 with severe anoxic insult history, were compared in regard to the location and the character of the lesions RESULTS: MRI demonstrated the followings;(1)abnormal signal intensity lesions of subcortical and/or deep cerebral white matter, cortex, and deep gray matter, (2)atrophy of the cerebral white matter, cortex and corpus callosum, with/without ventriculomegaly, and (3)delay in myelination. Periventricular and deep white matter lesions were demonstrated in the prematurity, the deep white matter lesions and/or subcortical white matter lesions in the term/post-term, and deep gray matter lesions in the 7 patients with severe anoxic insults history. CONCLUSION: MR imaging was useful in the diagnosis of the hypoxic-ischemic brain injury, and the white and gray matter lesions were correlated with the time of the injury and the severity of hypoxic insult.
Brain Injuries* ; Brain* ; Child ; Corpus Callosum ; Diagnosis ; Humans ; Infant ; Magnetic Resonance Imaging ; Myelin Sheath ; Reproductive History

No abstract available.
Endoscopy ; Gastrointestinal Hemorrhage*

No abstract available.
Groin* ; Vulvar Neoplasms*

No abstract available.
Hemoglobin A* ; Humans ; Mothers* ; Postpartum Period*

PURPOSE: To propose a standard value for the maxillary sinus volume of a normal Korean adult by measuring the width and height of the sinus and analyzing their correlation and the difference of the sinus size respectively between sexes, and on the right and left sides. MATERIALS AND METHODS: Fifty-two(95 maxillary sinuses) out of 20 years or over aged patients who had taken CT in the Department of Dental Radiology, Yonsei University, Dental Hospital, between February 1997 and July 1999 who were no specific symptom, prominent bony septa, pathosis, clinical asymmetry and history of surgery in the maxillary sinus were retrospectively analyzed. RESULTS: The mean transverse width, antero-posterior width, height and volume of the normal Korean adult's maxillary sinuses were 28.33 mm, 39.69 mm, 46.60 mm and 21.90 cm3, respectively. There was a significant sex difference in the sinus volume(p<0.05). In the mean antero-posterior width, height and volume of the sinus, no significant difference was observed between both sides. All four measurements showed a significant correlation between both sides(p<0.0001). The widths and height of the sinus all showed a significant correlation with the sinus volume(p<0.0001). CONCLUSION: In the Korean normal adult's maxillary sinus, males tended to be larger than females. Except for the transverse width, all of the measurements showed no significant difference between the right and left side, but significant correlations in the four measurements between both sides were observed. Thus, the overgrowth or undergrowth in the unilateral maxillary sinus may suggest a certain pathosis or developmental abnormalities in the maxillary sinus.
Adult ; Female ; Humans ; Male ; Maxillary Sinus* ; Retrospective Studies ; Sex Characteristics

A retromolar canal is an anatomical variation in the mandible. As it includes the neurovascular bundle, local anesthetic insufficiency can occur, and an injury of the retromolar canal during dental surgery in the mandible may result in excessive bleeding, paresthesia, and traumatic neuroma. Using imaging analysis software, we evaluated the cone-beam computed tomography (CT) images of two Korean patients who presented with retromolar canals. Retromolar canals were detectable on the sagittal and cross-sectional images of cone-beam CT, but not on the panoramic radiographs of the patients. Therefore, the clinician should pay particular attention to the identification of retromolar canals by preoperative radiographic examination, and additional cone beam CT scanning would be recommended.
Anatomic Variation ; Cone-Beam Computed Tomography* ; Hemorrhage ; Humans ; Mandible ; Neuroma ; Paresthesia

BACKGROUND: There has been no statistical study of dermatoses in the Ganganm area of Seoul which has been rapidly developing in the last 10 years. OBJECTIVE: We evaluated the recent distributions of dermatoses in the Gangam area of Seoul and compared them with the previous reports in Seoul and other provinces of Korea. METHODS: 47,015 new outpatients who visited the Yongdong Severance Hospital from 1983 to 1992 were analyzed statistically RESULTS: The study results are summarized as follows: 1. Among the 47,015 outpatients, the total number of number of male patients were 20,180(42.9%) and female patients 26,835(57.1%). 2. In age distribution, the most frequent age groups were the 3rd decade(21.3%), the lst decade(19.5%), and the 4th decade(19.2%) amounting to 60% of the total outpatients. 3. The most common 15 dermatoses were dermatophytosis, atopic dermatitis, urticaria, irritant contact dermatitis, acne vulgaris, allergic contact dermatitis, seborrheic dermatitis, other eczemas, warts, vitiligo, drug eruption, herpes zoster, psoriasis, bacterial infection, and syphilis. 4. Those dermatoses which showed an increasing tendency annually were seborrheic dermatitis, warts, vitiligo, and syphiiis. Dermatophytosis and bacterial infection showed a decreasing tendency. 5. Seasonal distribution showed that those diseases occurring most frequently during the summer were dermatophytosis, urticaria, allergic contact dermatitis, vitiligo, herpes zoster, and bacterial infection. The incidence of atopic dermatitis and psoriasis increased during the winter season. 6. In sexual distribution, acne, allergic contact dermatitis, and irritant contact dermatitis were more frequent in females, and the remainding common dermatoses did no show any difference. 7. In age distribution, atopic dermatitis and bacterial infection were most frequent in the lst decade. Urticaria, allergic contact dermatitis, acne, drung eruption, psoriasis, and syphilis were most frequent in the 3rd decade, with warts and vitiligo in the 2nd decade, and herpes zoster in the 6th decaded. 8. The distributions of dermotoses as disease groups were eczema(24.9%), urticaria-drug eruption (13.2%), dermatophytosis(10.7%), skin appendage disorder(10.1%), viral infection(10.1%), pigmentary disorders(4.5%), and papulosquamous diseases(4.0%) which constituted 78% of the total. 9. In patients dwelling in apartments, atopic dermatitis and molluscum contagiosumn showed a more frequent tendency in comparison to those living in house. 10. The most common 10 dermatoses among children were atopic dermatitis, urticaria, contact dermatitis, molluscum contagiosum, bacterial infection, dermatophytosis, vitiligo, other viral infections, and nevo-cellular nevi. On the other hand, the most common 10 dermatoses among the elderly were drmatophytosis, other eczemas, urticaria, herpes zoster, pruritus, contact dermatitis, drug eruption, lichen simplex chronicus, seborrheic dermatitis, and vitiligo. CONCLUSION: In contrast to earlier published report from Seoul, the infectous dermatoses, especially parasitic infestation, showed a decreasing tendency. The distribution pattern of the skin diseases did not differ fro other provinces of Korea in general.
Acne Vulgaris ; Age Distribution ; Aged ; Bacterial Infections ; Child ; Dermatitis, Allergic Contact ; Dermatitis, Atopic ; Dermatitis, Contact ; Dermatitis, Seborrheic ; Drug Eruptions ; Eczema ; Female ; Hand ; Herpes Zoster ; Humans ; Incidence ; Korea ; Male ; Molluscum Contagiosum ; Neurodermatitis ; Nevus ; Outpatients ; Pruritus ; Psoriasis ; Seasons ; Seoul* ; Skin ; Skin Diseases* ; Statistics as Topic* ; Syphilis ; Tinea ; Urticaria ; Vitiligo ; Warts

The results of alpha-acetyldigoxin(Dioxanin(R)) administration in 21 patients with congestive heart failure were as follows. Alpha-acetyldigoxin is a new oral preparation of cardiac glycoside derived from lanatosid C. 1. For rapid digitalization in 2-3 days, the initial dose was 1.2 to 2.6mg (average 1.96mg). For medium-fast digitalization in 4 days, the loading dose was 2.0 to 3.2mg (average 2.7mg). For slow digitalization 0.1 to 0.4mg was required for 5 to 6 days without loading dose. The maintenance dose was 0.1 to 0.4mg (average 0.33mg) daily. 2. The therapeutic effect of acetyldigoxin was excellent in 15 cases (71%), good in 4 cases (20%) and stationary in 2 cases (9%). 3. Side effects were observed in 2 cases with usual dosage regimen. One accidental case who took single dose of 4mg(20 tablests) developed supraventricular tachycardia with varying degree of atrioventricular block, ventricular bigeminy and premature beat but recovered completely after 6 days.
Acetyldigoxins* ; Atrioventricular Block ; Cardiac Complexes, Premature ; Estrogens, Conjugated (USP)* ; Heart Failure* ; Humans ; Tachycardia, Supraventricular

In this study, radiographic evaluation was made using panoramic radiography and cross-sectional tomography of SCANORA in male and female adults in their 20 s on the relationship between the maxillary sinus floor and the apex of the maxillary molar, to test the accuracy and effectiveness of the cross-sectional tomography, and to use this information in the assessment of preop, and postop, root canal treatment, apical surgery, extraction and implantology. Forty-one adults with an average age of 24.4 years were studied panoramic radiography and cross-sectional tomography. In panoramic view and cross-sectional view, the position of the apices of maxillary molars were classified as separated, contacted, or protruded type; the general shape of the maxillary sinus floor was evaluated horizontally and vertically from cross-sectional tomography. The accuracy of each radiography was tested using maxilla from 5 fresh cadavers from the Anatomy Lab at Yonsei University Dental College, and panoramic view and cross-sectional tomography were taken in the same condition as with the patients. The results were as follows ; 1. Panoramic view and cross-sectional view were taken in the maxilla specimen, and the actual distance between the maxillary sinus floor and the tooth apices were measured in the specimen; the median values of the distance from the tooth apices to the maxillary sinus floor in the panoramic view, cross-sectional view and in the acrual maxilla specimen were 2.83mm, 4.51mm, and 4.15mm, respectively. In the cross-sectional view, the measured distance was close to the actual distance but in the panoramic view, the measured distance was far from the actual distance. 2. When the results of the panoramic view and cross-sectional view were compared, 40.5% of the results agreed with each other in the two radiographic methods and buccal roots of the 2nd molar were the closest to the maxillary sinus floor in the cross-sectional tomography. 3. In cross-sectional view, when the vertical relatioship of the maxillary sinus floor and maxillary roots was assessed, in 1st molars, type II (the sinus floor that extends down to the buccolingual furcation area) was predominant, while in 2nd molars, type I (the sinus floor located above the level connecting the buccal and lingual apices) was predominant. In the horizontal relationship, in 1st olars, type II (ths lowest floor of the maxillary sinus located in between the buccal and lingual roots) was predominant; in 2nd molars, type I (the lowest floor of the maxillary sinus located on the buccal side of the buccal roots) and type II appeared in similar frequency. In conclusion, the SCANORA cross-sectional tomography was more effective than the frequently used panoramic view, in that the relationship of the maxillary molars and maxillary sinus floor can be evaluated more accurately and the buccolingual cross-sectional view can also be observed. And maxillary sinus floor that was close to maxillary 2nd molar had tendency to be located on buccal side than that close to 1st molar. Therefore, cross-sectional tomography is an effective and accurate method to evaluate the position of the teeth in relation to the sinus floor preoperative and can be easily used to diagnose localized periapical lesions. Also the image quality obtained was quite satisfactory.
Adult ; Cadaver ; Dental Pulp Cavity ; Female ; Humans ; Male ; Maxilla ; Maxillary Sinus* ; Molar* ; Radiography ; Radiography, Dental, Digital ; Radiography, Panoramic ; Tooth ; Tooth Apex