Diffuse myalgia is common in transient systemic viral infections but overt myositis, with weakness and signs of muscle inflammation, rarely accompanies viral infection in chidren. We describe a 8-year-old boy with severe myalgia and tenderness in both lower extremities, whose unusual skeletal muscle uptake on Technetium-methylene diphosphate bone scan helped to diagnosis of myositis. Clinical course, muscle-derived enzyme studies(AST, ALT, LD, CK), electromyogram findings, histopathologic findings obtained from left gastrocnemius muscle biopsy and serologic studies for enteroviral antibodies (enterovirus type 71 and Coxsackie B4 neutralization antibody titer 1:128 respectively) were all compatible with acute viral myositis.
Antibodies ; Biopsy ; Child ; Diagnosis ; Humans ; Inflammation ; Lower Extremity ; Male ; Muscle, Skeletal ; Myalgia ; Myositis*

BACKGROUND: Studies using a transcranial Doppler (TCD) to establish cerebral vasoreactivity (CVR) have mostly focused on the anterior circulation. The purpose of this study is not only to evaluate the feasibility of the power motion mode Doppler (PMD) with a probes fixating device, but also to simultaneously measure the CVR between the middle cerebral artery (MCA) and the basilar artery (BA) during hypercapnea simulated by the rebreathing technique. METHODS: Twenty eight healthy volunteers were enrolled. Baseline hemodynamic values (heart rate, blood pressure) were measured while volunteers sat in a comfortable position for 5 minutes. The TCD was performed in two steps. First, velocities and spectra of the MCAs were simultaneously monitored. Then, the velocities and spectra of the MCA and BA were simultaneously monitored by a headset that included an anterior-posterior probes fixating device. The equation for CVR was ([maximum mean velocity baseline mean velocity] x 100/baseline mean velocity). RESULTS: Baseline mean velocities were revealed as follows: (64.0+/-13.7, 65.0+/-11.9 cm/s in right and left MCA; p>0.05; 67.3+/-12.2, -45.3+/-7.6 cm/s in dominant MCA and BA). CVR did not differ between the dominant MCA and the BA (46.1+/-12.1, 46.0+/-15.1%; p>0.05), nor between the right and left MCAs (46.9+/-15.2, 46.4+/-14.8%; p>0.05). There was a positive linear correlation between the CVR of the dominant MCA and that of the BA (r=0.856; p<0.001). CONCLUSIONS: PMD with a probes fixating device for accurate insonation is a useful tool for evaluating the relative CVR between the MCA and BA. Our study suggests that CVR values of the BA are similar to those of the MCA.
Basilar Artery ; Healthy Volunteers ; Hemodynamics ; Middle Cerebral Artery* ; Volunteers

The HACEK group of bacteria (Haemophilus parainfluenzae, H. aphrophilus, H. paraphrophilus, Actinobacilus actinomycetemcomitans, Cardiobacterium hominis, Eikenella corodens, and Kingella kingae) are the normal flora of the upper respiratory tract and oropharynx. The organisms infect abnormal cardiac valves, causing subacute native endocarditis or prosthetic valve endocarditis more than one year after valve surgery. Haemophilus species are responsible for only 0.5~1% of all infective endocarditis cases. Embolization occurs in 60% and the mortality rate ranges from 16~45% of cases of infective endocarditis caused by H. parainfluenzae. We experienced a case of infective endocarditis due to H. parainfluenzae in a 37-year-old male admitted with high fever, chills, nausea & vomiting, chest discomfort, and blurred vision. The organism was isolated from a blood culture and was identified as H. parainfluenzae by factor V requirement, negativity at urea, positivity at ornithine decarboxylase, and acid production from glucose and maltose. The patient was treated with antibiotics and symptoms and signs were improved
Adult ; Anti-Bacterial Agents ; Bacteria ; Cardiobacterium ; Chills ; Eikenella ; Endocarditis ; Factor V ; Fever ; Glucose ; Haemophilus ; Haemophilus parainfluenzae ; Heart Valves ; Humans ; Kingella ; Male ; Maltose ; Nausea ; Ornithine Decarboxylase ; Oropharynx ; Paramyxoviridae Infections ; Respiratory System ; Thorax ; Urea ; Vision, Ocular ; Vomiting

BACKGROUND AND OBJECTIVES: Insomnia is the most prevalent sleep disorder in the general population and is considered to be a disorder of hyperarousal. The aim of this study was to measure the psychophysiological responses in insomnia patients using a biofeedback system, and to compare them with results from normal healthy subjects. MATERIALS AND MATHODS: Eighty patients with primary insomnia (35 males and 45 females, average age 49.71 +/- 12.91 years) and 101 normal healthy controls (64 males and 37 females, average age 27.65 +/- 2.77) participated in this study. Electromyography (EMG), heart rate (HR), skin conductance (SC), skin temperature (ST), and respiratory rate (RR) were recorded using a biofeedback system during 5 phases (baseline, stress 1, recovery 1, stress 2, recovery 2) of a stress reactivity test, and average values were calculated. Difference in values between the two groups in each corresponding phase was analyzed with independent t-test, and change in values across phases of the stress reactivity test was analyzed with paired t-test (all two-tailed, p<0.05). RESULTS: Compared to normal controls, insomnia patients had higher EMG in all 5 phases (baseline : 7.72 +/- 3.88 microV vs. 4.89 +/- 1.73 microV, t = -6.06, p<0.001 ; stress 1 : 10.29 +/- 5.16 microV vs. 6.63 +/- 2.48 microV, t = -5.84, p<0.001 ; recovery 1 : 7.87 +/- 3.86 microV vs. 5.17 +/- 2.17 microV, t = -5.61, p<0.001 ; stress 2 : 10.22 +/- 6.07 microV vs. 6.98 +/- 2.98 microV, t = -4.37, p<0.001 ; recovery 2 : 7.88 +/- 4.25 microV vs. 5.17 +/- 1.99 microV, t = -5.27, p<0.001). Change in heart rate across phases of the stress reactivity test were higher in normal controls than in insomnia patients (stress 1-baseline : 6.48 +/- 0.59 vs. 3.77 +/- 0.59, t = 3.22, p = 0.002 ; recovery 1- stress 1 : -5.36 +/- 0.0.59 vs. -3.16 +/- 0.47, t = 2.91, p = 0.004 ; stress 2-recovery 1 : 8.45 +/- 0.61 vs. 4.03 +/- 0.47, t = 5.72, p<0.001 ; recovery 2-stress 2 : -8.56 +/- 0.65 vs. 4.02 +/- 0.51, t = -5.31, p<0.001). CONCLUSION: Psychophysiological profiles of insomnia patients in a stress reactivity test were different from those of normal healthy controls. These results suggest that the sympathetic nervous system is more highly activated in insomnia patients.
Biofeedback, Psychology* ; Electromyography ; Female ; Heart Rate ; Humans ; Male ; Psychophysiology ; Respiratory Rate ; Skin ; Skin Temperature ; Sleep Initiation and Maintenance Disorders* ; Stress, Physiological ; Sympathetic Nervous System

PURPOSE: The study was performed to identify the reality of urinary incontinence (UI) and to evaluate the risk factors developing UI for the patients with Parkinson's disease. MATERIALS AND METHODS: This was the cross-sectional study with interviews using structured questionnaires. The subjects who were 72 patients(male 20, female 52) and their mean age is 70.07+/-20.06(range 54~86) with Parkinson's disease visited the Neurology clinic, from September to November 2005, at one university hospital located in Jeju island. RESULTS: Subjects with restricted mobility were 45, and 13 were in first stage of Hoehn & Yahr stage, 31 were in second stage, 28 were in third stage. Fifty three(73.6%) subjects had experienced UI. Mixed UI was in 32 (44.4%), stress UI 12(16.7%), and urge UI 9(12.5%), respectively. As for risk factors developing UI, female had 1.62 times(OR=1.62, 95% CI=0.47~5.66) more than male, age of 80~86 had 3.20 times(OR=3.20, 95% CI=0.65~15.69) more than age of 54~69, subjects with restricted mobility had 2.75 times(OR=2.75, 95% CI=0.80~9.43) more than subjects without restricted mobility. Group without regular exercise had 2.9 times more than group with regular exercise(OR=2.90, 95% CI=0.92~9.22). Cognitive impairment group had 1.98 times more than normal mental status group(OR=1.98, 95% CI=0.39~9.97). Second stage had 4.91 times(OR=4.91, 95% CI=0.55~43.53) and third stage had 5.68 times(OR=5.68, 95% CI=00.64~50.73) more than first stage in Hoehn and Yahr stage. CONCLUSION: There is a high prevalence(73.6%) of UI in patients with Parkinson's diseases. Mixed UI was the most common type of incontinence. Risk factors developing UI were higher in female, older group, restricted mobility group, group without regular exercise, cognitive impairment group andhigher Hoehn and Yahr stage.
Cross-Sectional Studies ; Female ; Humans ; Male ; Neurology ; Parkinson Disease* ; Surveys and Questionnaires ; Risk Factors ; Urinary Incontinence*

No abstract available.
Molar* ; Tooth*

Objectives: This retrospective study aimed to analyze data on nerve damage in patients who complained of sensory changes after dental implant surgery, the clinical results according to proximity of the implant fixture to the inferior alveolar nerve (IAN) canal, and the factors affecting recovery of sensation. Materials and Methods: The electronic medical records of 64 patients who had experienced sensory change after implant surgery were reviewed.Patients were classified by sex, age, implant installation sites, recovery rate and the distance between the implant fixture and IAN canal on computedtomography (CT). The distance was classified into Group I (D>2 mm), Group II (2 mm≥D>0 mm), and Group III (D≤0 mm). Results: The 64 patients were included and the mean age was 57.3±7.3 years. Among the 36 patients who visited our clinic more than two times, 21 patients (58.3%) reported improvement in sensation, 13 patients (36.1%) had no change in sensation, and 2 patients (5.6%) reported worsening sensation. In Group II, symptom improvement was achieved in all patients regardless of the removal of the implant fixture. In Group III, 8 patients (40.0%) had reported symptom improvement with removal of the implant fixture, and 2 patients (33.3%) of recovered patients showed improvement without removal. Removal of the implant fixture in Group III did not result in any significant difference in recovery (P=0.337), although there was a higher possibility of improvement in sensation in removal cases. Conclusion Clinicians first should consider removing the fixture when it directly invades the IAN canal. However, in cases of sensory change after dental implant surgery where the drill or implant fixture did not invade the IAN canal, other indirect factors such as flap elevation and damage due to anesthesia should be considered as causes of sensory change. Removal of the implant should be considered with caution in these situations.

We measured the dose distribution for spinal cord and tumor using Gafchromic film, applying 3D and 4D-Treatment Planning for lung tumor within the phantom. A measured dose distribution was compared with a calculated dose distribution generated from 3D radiation treatment planning and 4D radiation treatment planning system. The agreement of the dose distribution in tumor for 3D and 4D treatment planning was 90.6%, 97.64% using gamma index computed for a distance to agreement of 1 mm and a dose difference of 3%. However, a gamma agreement index of 3% dose difference tolerence of and 2 mm distance to agreement, the accordance of the dose distribution around cord for 3D and 4D radiation treatment planning was 57.13%, 90.4%. There are significant differences between a calculated dose and a measured dose for 3D radiation treatment planning, no significant differences for 4D treatment planning. The results provide the effectiveness of the 4D treatment planning as compared to 3D. We suggest that the 4-dimensional treatment planning should be considered in the case where such equipments as Cyberknife with the real time tracking system are used to treat the tumors in the moving organ.
Lung ; Radiosurgery ; Spinal Cord ; Track and Field

PURPOSE: Patients with hematologic diseases such as chronic myeloid leukemia (CML) or chronic lymphoid leukemia (CLL) are known to have an increased chance of acquiring a secondary neoplasm. Stomach cancer is one of the most common malignant diseases in Korea, and we investigated whether the incidence of secondary stomach cancer in patients with a hematologic disease increases, in order to determine if a more intensive screening program for detecting secondary gastric cancer was required. We also investigated the safety of performing a gastrectomy in hematologic disease patients. MATERIALS AND METHODS: From 1992 to 2006, the medical records of 8376 patients diagnosed with one of the six common hematologic diseases were reviewed. RESULTS: Nine secondary stomach cancers were found among the 8376 patients during the 15-year observation period. No surgical-related complications occurred, and there was no recurrence of stomach cancer if detected early. CONCLUSION: It seems that a more intensive screening program for detecting secondary gastric cancer in hematologic disease patients is not required, and surgery is not risky in these patients.
Gastrectomy ; Hematologic Diseases* ; Humans ; Incidence ; Korea ; Leukemia ; Leukemia, Lymphoid ; Leukemia, Myelogenous, Chronic, BCR-ABL Positive ; Mass Screening ; Medical Records ; Recurrence ; Stomach Neoplasms* ; Stomach*

Recently PTW developed a MicroLion liquid ionization chamber which is water_equivalent and has a small sensitive volume of 0.002 cm3. The aim of this work is to investigate such dosimetric characteristics as dose linearity, dose rate dependency, spatial resolution, and output factors of the chamber for the external radiotherapy photon beam. The results were compared to those of Semiflex chamber, Pinpoint chamber and Diode chamber with the sensitive volumes of 0.125 cm3, 0.03 cm3 and 0.0025 cm3, respectively and evaluated to be suitable for small fields. This study was performed in the 6MV photon energy from a Varian 2300 C/D linac accelerator and the MP3 water phantom (PTW, Freiburg) was used. Penumbras in the varios field sizes ranged from 0.5x0.5 cm2 to 10x10 cm2 were used to evaluate the spatial resolution. Output factors were measured in the field sizes of 0.5x0.5 to 40x40 cm2. Readings of the chamber was linearly proportional to dose. Dose rate dependency was measured from 100 MU/min to 600 MU/min, showed a maximum difference of 5.0%, and outputs decreased with dose rates. The spatial resolutions determined with comparing profiles for the field sizes of 0.5x0.5 cm2 to 10x10 cm2 agreed between every detector except the Semiflex chamber to within 2%. Outputs of detectors were compared to that of Semiflex chamber and showed good agreements within 2% for every chamber. This study shows that MicroLion chamber characterized by a high signal-to-noise ratio and water equivalence could be suitable for the small field dosimetry.
Dependency (Psychology) ; Reading ; Signal-To-Noise Ratio ; Spatial Analysis ; Water