No abstract available.
Purpura, Thrombocytopenic, Idiopathic*

This investigation was designed to categorize Angle's class III malocclusion groups through analyzing horizontal and vertical components of craniofacial skeleton in Angle's class III malocclusion. The material selected for this study consisted in standard lateral cephalogram of one hundred and fifty five children, seventy four boys and eighty one girls, aged 6 through 15 years, having Angle's class III malocclusion. On the basis of findings of this study, the following results were obtained. 1. In horizontal skeletal classifications, 16 groups were classified FMN-A-B, SE-FMN-A according to the Ba-SE-Me, Ba-SE/R. 2. The sequences that have relatively high frequency are as follow; a) Horizontal Group 1 b) Horizontal Group 3 c) Horizontal Group 5 d) Horizontal Group 9 e) Horizontal Group 4 3. In vertical skeletal classification, 8 groups were classified according to the PMV/PP, PMV/OP, PMV/MP. 4. The sequences that relatively high are as follows; a) Vertical Group 1 b) Vertical Group 3 c) Vertical Group 4 d) Vertical Group 8
Child ; Classification ; Female ; Humans ; Malocclusion* ; Skeleton*

High-resolution (HR) ultrasound, which has been progressing continuously in technology, has improved in aspect of spatial and contrast resolution. The HR ultrasonography is a noninvasive, readily applicable imaging technique, which could get static and dynamic image in real-time for various neuromuscular disorders, especially in entrapment neuropathy. It is also a reliable tool to detect dynamic muscle movements such as fasciculation as well as muscle atrophy in chronic myopathies or neuropathies. Although reliability of the HR ultrasonography has not been investigated in large series of patients, different neuromuscular disorders tend to show specific changes on the ultrasound, which can be helpful in differential diagnosis. The HR ultrasonography is an ideal tool for the clinical and research investigation of neuromuscular system complementary to electrodiagnostic studies. This review briefly describes applicability for various neuromuscular disorders with previous study results and the technical aspects of ultrasound and its physical principles.
Diagnosis, Differential ; Fasciculation ; Humans ; Muscles ; Muscular Atrophy ; Muscular Diseases ; Nerve Compression Syndromes

PURPOSE: To assess the difference between auditory and visual stimuli when determining hemispheric language dominance by using functional MRI. MATERIALS AND METHODS: In ten healthy adult volunteers (8 right-handed, 1 left-handed, 1 ambidextrous), motor language activation in axial slices of frontal lobe was mapped on a Simens 1.5T Vision Plus system using single-shot EPI. Series of 120 consecutive images per section were acquired during three cycles of task activation and rest. During each activation, a series of four syllables was delivered by means of both a visual and auditory method, and the volunteers were asked to mentally generate words starting with each syllable. In both inferior frontal gyri and whole frontal lobes, lateralization indices were calculated from the activated pixels. We determined the language dominant hemisphere, and compared the results of the visual method and the auditory method. RESULTS: Seven right-handed persons were left-hemisphere dominant, and one left-handed and one ambidextrous person were right-hemisphere dominant. Five of nine persons demonstrated larger lateralization indices with the auditory method than the visual method, while the remaining four showed larger lateralization indices with the visual method. No statistically significant difference was noted when comparing the results of the two methods(p>0.05). CONCLUSION: When determining hemispheric language dominance using functional MRI, the two methods are equally appropriate.
Adult ; Frontal Lobe ; Humans ; Magnetic Resonance Imaging* ; Volunteers

Retrocaval or postcaval ureter is a well-recognized venous congenital anomaly commonly causing ureteric obstruction. A 42 year-old male was admitted to Korea University Hospital because of right flank pain. The right AGP reveals the S-shaped coures of ureter and hydronephrosis. The ureteral and to end anastomosis was done with double J ureteral stent. Herein we present a case of retrocaval ureter with brief review of literatures.
Adult ; Flank Pain ; Humans ; Hydronephrosis ; Korea ; Male ; Retrocaval Ureter* ; Stents ; Ureter

In this paper, waveform preserving coding technique is proposed for the bio-signals based on wavelet transform local maxima representation. In order to efficiently encode the bio-signal, it utilize the inherent property of bio-signals that sharp waves corresponding to the local maxima in wavelet domain contain the most of the clinically significant information in general. The testing sets of ECG and EEG are experimented to select the appropriate wavelet basis and to demonstrate the usefulness regarding to coding efficiency. The spline basis is more suitable in designing the coder than the Harr basis since the spline basis produces less number of local maxima than the Harr basis. The proposed wavelet method based on spline basis outperforms the conventional subband coding technique in terms of wave form degradation and coding efficiency. The actual transmission experiment using external communication network and the general personal computer demonstrates the applicability to telemedicine system handling the bio-signals.
Clinical Coding ; Electrocardiography ; Electroencephalography ; Microcomputers ; Telemedicine* ; Wavelet Analysis

Anti-Bacterial Agents ; Drainage ; Fever ; Humans ; Orthognathic Surgery ; Wound Infection ; Wounds and Injuries

Anti-Bacterial Agents ; Humans ; Mandible ; Maxilla ; Orthognathic Surgery

In contrast to younger patients, old peoples frequently mainfest more than one pathologic process, mainly degenerative diseases and neoplasia. Nearly all have some degree of arteriosclerosis, even if this is not clinically diagnosed, and many have associated chronic cardiac, renal, hepatic, or pulmonary disease. The surgeon and the anesthesiologist must see theat their clinical decisions are tied to a physiologic understanding based on exact quantification of the specific hemodynamic, respiratiory, renal, and metabolic factors which may play a decisive role in influencing the final outcome to a major operative procedure. From May 1972 to Dec 1980, the Department of Anesthesiology, Hanyang University, College of Medicine had 517 geriatric patients(above 65 years) who received anesthesia and these were analyzed clinically according to age, sex, department, physical status, anesthetic technique and agent, anesthesia time, length of admission, laboratory studies(chest X-ray, EKG, arterial blood gas), and postoperative complications(mortality and causes of deathe). The results are as follows. 1) Out of 25,857 anesthetized patients 517(2.0%) were over 64 years of age and 290 were males(56.1%) and 227 females(43.9%). 2) In the surgical group, 246 cases (47.6%) were from general sugery: 81 cases(15.7%), orthopedic surgery: 78 cases (15.1%), urology: and 67 cases (12.9%), neurosurgery respectively. 3) In the classification of physical status, 33 cases(6.4%) were class 1, 269 cases(52.0%) class 2, 181 cases (35.0%) class 3, 28 cases (5.4%) class 4, and 6 cases (1.2%) class 5. Emergency cases were 137 cases(26.5%) and 380 cases (73.5%) were elective. 4) Concerning premedication-150cases(29.0%) were premedicated with atropine sulfate plus valium and 93 cases had no premedication. 5) There were 425 cases of general anesthesia (82.2%) and 92 cases of regional anesthesia (17.8%). The major anesthetic was halothane, 362 cases (70.0%). The technic in 419 cases( 81.0%) was circle type with endotracheal intubation. Anesthesia duration was within 1hour for 70 cases(13.5%), within 2 hours for 158 cases(30.0%), and within 3hours in 144 cases(27.9%). 6) Preoperative laboratory findings were as follows: The chest X-ray suggested that 199 cases (45.9%) were within normal limits, 56 cases (12.9%) had hypertensive heart disease, 56 cases (12.9%) had pulmonary tuberculosis, and 38 cases (5.1%) had senile lung fibrosis. The EKG which was done on 85% of the patients, ravealed that 193 cases (44.0%) were within normal limits, 61 cases(13.9%) showed left ventricular hypertrophy, and 38 cases(8.7%) had myocardial ischemia. In the preoperative arterial blood gas studies of 56 cases the results were almost all within normal limits. 7) Postoperative complications were as follows: 52 cases showed wound infection or bleeding, 20 cases had pneumonia, and 18 cases atelectasis. There were a number of miscellaneous complications. 8) The overall mortality rate was 5.8%. The difference of mortality rate related to the age was not statistically significant,(p>0.1) and the mortality rate related to physical status was statistically significant(p<0.005). 9) As the cause of death-11 cases (36.7%) had transtentorial herniation, 2 cases (6.7%) sepsis, 2 cases (6.7%) hypovolemia, and 1 case (3.3%) had pulmonary edema.
Anesthesia* ; Anesthesia, Conduction ; Anesthesia, General ; Anesthesiology ; Arteriosclerosis ; Atropine ; Classification ; Diazepam ; Electrocardiography ; Emergencies ; Fibrosis ; Halothane ; Heart Diseases ; Hemodynamics ; Hemorrhage ; Humans ; Hypertrophy, Left Ventricular ; Hypovolemia ; Intubation, Intratracheal ; Lung ; Lung Diseases ; Mortality ; Myocardial Ischemia ; Neurosurgery ; Orthopedics ; Pneumonia ; Postoperative Complications ; Premedication ; Pulmonary Atelectasis ; Pulmonary Edema ; Sepsis ; Surgical Procedures, Operative ; Thorax ; Tuberculosis, Pulmonary ; Urology ; Wound Infection

Succinylcholine is used most widely for tracheal intubation during induction for general anesthesia. However adverse effects following the administration of succinylcholine which include an increase of serum potassium, creatine phosphokinase, abdominal pressure and the presence of fasciculation are well known to anesthesiologists. Many investigators have studied the influence of pretreatment with d-tuhocurarine and diazepam to prevent the adverse effects following administration of succinylcholine. We studied the effects of serum potassium and creatine phophokinase with midazolam(0.25 mg/kg) the most newly introduced benzodiazepine derivatives and thiopental sodium(4-5mg/kg) the most widely used induction agent for anesthesia in 33 adult healthy surgical patients. We also observed the onset of loss of eyelash reflex and fasciculation, the degree of fasciculation and the adequacy of relaxation for intubation comparing the two agents. The results are as follows: 1) There were no significant increases in serum potassium and creatine phosphokinase levels before succinylcholine and after 10 minutes administration in both agents groups. 2) Loss of eyelash reflex occurred immediately with thiopental and at 63+/-43 seconds with midazolam one minute after administration. 3) Fasciculation appeared at 14.4+/-4.9 seconds with thiopental and at 21.3+/-11.9 seconds with midazolam and continued 66.3+/-20.1 seconds with thiopental and 43.5+/-l8.5 seconds with midazolam. 4) The adequacies of relaxation for intubation were good enough in both agents groups but midazolam seems to be better. Midazolam seems to be a good induction agent for general anesthesia and prevents an increase of serum potassium level after administration of succinylcholine without pretreatment of non-depolarizing muscle relaxants or diazepam.
Adult ; Anesthesia ; Anesthesia, General ; Benzodiazepines ; Creatine Kinase* ; Creatine* ; Diazepam ; Fasciculation ; Humans ; Intubation ; Midazolam* ; Neuromuscular Nondepolarizing Agents ; Potassium* ; Reflex ; Relaxation ; Research Personnel ; Succinylcholine ; Thiopental