PURPOSE: Febrile convulsion (FC) is the most common type of seizure disorder during childhood. The most frequent sequale after the first FC is the recurrence of another FC. A number of risk factors associated with the recurrence have been identified. We evaluated the factors associated with the recurrence of FC. METHOD: The recurrence rates of FC by the predictive factors of recurrence were retrospectively evaluated in a cohort of 214 Korean children who were admitted to the Pediatric Depatment of the Yonsei University Wonju College of Medicine, from January 1996 to December 1997. RESULT: The overall recurrence rate of FC was 56.1% and the cumulative rates of the recurrent cases by intervals between the initial onset and recurrence were 52.5% by 6 months, 82.5% by 12 months, and 89.2% by 24 months. When the onset of the first FC occurred less than 12 months of age, the recurrence rate (66.1%) was significantly higher than that of the other age groups of the onset (p<0.05). There were no differences in the recurrence rate by the other predictive factors-durations of the initial FC, seizure type of the initial FC, the recurrence during the first 24 hours after the initial FC, and the family histories of FC or epilepsy. CONCLUSION: We can conclude that the recurrence of FC statistically correlated with the age at onset, especially less than 12 months old. And we recommend that it may be necessary to prophylactically treat recurrence of FC if the first FC occurred at less than 12 months of age.
Child ; Cohort Studies ; Epilepsy ; Gangwon-do ; Humans ; Infant ; Recurrence ; Retrospective Studies ; Risk Factors* ; Seizures ; Seizures, Febrile*

BACKGROUND: Idiopathic left ventricular tachycardia (ILVT), one of common idiopathic ventricular tachycardias which develop without structural abnormality of the heart. It has been reported that ILVT has a typical QRS morphology of right bundle branch block and left axis and unique clinical and electrophysiological characteristics. Intravenous verapamil is shown to be very effective in acute termination. However, radio-frequency catheter ablation is now recommended as the treatment of choice for long-term managemnt. This study was performed to determine the clinical and electrophysiological characteristics of ILVT and to evaluate the effects of radiofrequency catheter ablation (RFCA) of ILVT. METHODS: Seventeen patients (12 men, 5 women:mean age : 39+/-15 years) with ILVT were included in this study. ILVT was diagnosed based on the results of electrocardiogram, echocardiogram, cardiac catheterization, and electrophysiology study (EPS). EPS was performed with the standard technique in fasting state for more than 6 hours. In patients with their clinical VTs reproducibly induced during EPS, RFCA was attempted using endocardial activation mapping and pace-mapping. The mode of induction and termination, response to verapamil, and site of origin of the ILVT were evaluated. The local electrogram chacteristics at the sites of successful catheter ablation were also evaluated in patients undergoing RFCA. RESULTS: All 17 patients presented with recurrent palpitation but none with syncope or sudden cardiac death. None had a significant heart disease. The spontaneous ventricular tachycardias were of right bundle branch block morphology with left superior axis in 11 cases, right inferior axis in 1, and northwest axis in 5. The VTs were terminated with intravenous verapamil in all of 14 patients receiving IV verapamil. VT of same morphology as the clinical VT was induced with programmed electrical stimulation in 13 cases (76.4%), of whom 2 cases required isoproterenol infusion. The most frequent mode of induction was single ventricular extrastimulation (7 cases). Mean cycle length of the induced VTs was 320+/-59 ms. RFCA was attempted in 11 cases and successful in 9 (82%). The successful ablation sites were and central mid septum (3 cases), posterior mid septum (3 cases), posterior apical septum (3 patients) of the left ventricle (3 patients). At the successful ablation sites, the local ventricular activation preceded the onset of QRS complex by 34+/-15 ms (range : 10-58) and the paced QRS complexes during pace-mapping were identical to those of the induced or spontaneous VTs in 11.7+/-0.4 leads (range : 11-12). However, Purkinje potential was recorded only in 2 cases. There were no complications associated with EPS and RFCA. CONCLUSIONS: The present study suggests that ILVT is mild in symptoms, highly sensitive to verapamil, mostly caused by reentry, and can be cured by radiofrequency catheter ablation guided by pace-mapping and activation mapping.
Axis, Cervical Vertebra ; Bundle-Branch Block ; Cardiac Catheterization ; Cardiac Catheters ; Catheter Ablation* ; Catheters* ; Death, Sudden, Cardiac ; Electric Stimulation ; Electrocardiography ; Electrophysiology ; Fasting ; Heart ; Heart Diseases ; Heart Ventricles ; Humans ; Isoproterenol ; Male ; Syncope ; Tachycardia, Ventricular* ; Verapamil

BACKGROUND: Idiopathic left ventricular tachycardia (ILVT), one of common idiopathic ventricular tachycardias which develop without structural abnormality of the heart. It has been reported that ILVT has a typical QRS morphology of right bundle branch block and left axis and unique clinical and electrophysiological characteristics. Intravenous verapamil is shown to be very effective in acute termination. However, radio-frequency catheter ablation is now recommended as the treatment of choice for long-term managemnt. This study was performed to determine the clinical and electrophysiological characteristics of ILVT and to evaluate the effects of radiofrequency catheter ablation (RFCA) of ILVT. METHODS: Seventeen patients (12 men, 5 women:mean age : 39+/-15 years) with ILVT were included in this study. ILVT was diagnosed based on the results of electrocardiogram, echocardiogram, cardiac catheterization, and electrophysiology study (EPS). EPS was performed with the standard technique in fasting state for more than 6 hours. In patients with their clinical VTs reproducibly induced during EPS, RFCA was attempted using endocardial activation mapping and pace-mapping. The mode of induction and termination, response to verapamil, and site of origin of the ILVT were evaluated. The local electrogram chacteristics at the sites of successful catheter ablation were also evaluated in patients undergoing RFCA. RESULTS: All 17 patients presented with recurrent palpitation but none with syncope or sudden cardiac death. None had a significant heart disease. The spontaneous ventricular tachycardias were of right bundle branch block morphology with left superior axis in 11 cases, right inferior axis in 1, and northwest axis in 5. The VTs were terminated with intravenous verapamil in all of 14 patients receiving IV verapamil. VT of same morphology as the clinical VT was induced with programmed electrical stimulation in 13 cases (76.4%), of whom 2 cases required isoproterenol infusion. The most frequent mode of induction was single ventricular extrastimulation (7 cases). Mean cycle length of the induced VTs was 320+/-59 ms. RFCA was attempted in 11 cases and successful in 9 (82%). The successful ablation sites were and central mid septum (3 cases), posterior mid septum (3 cases), posterior apical septum (3 patients) of the left ventricle (3 patients). At the successful ablation sites, the local ventricular activation preceded the onset of QRS complex by 34+/-15 ms (range : 10-58) and the paced QRS complexes during pace-mapping were identical to those of the induced or spontaneous VTs in 11.7+/-0.4 leads (range : 11-12). However, Purkinje potential was recorded only in 2 cases. There were no complications associated with EPS and RFCA. CONCLUSIONS: The present study suggests that ILVT is mild in symptoms, highly sensitive to verapamil, mostly caused by reentry, and can be cured by radiofrequency catheter ablation guided by pace-mapping and activation mapping.
Axis, Cervical Vertebra ; Bundle-Branch Block ; Cardiac Catheterization ; Cardiac Catheters ; Catheter Ablation* ; Catheters* ; Death, Sudden, Cardiac ; Electric Stimulation ; Electrocardiography ; Electrophysiology ; Fasting ; Heart ; Heart Diseases ; Heart Ventricles ; Humans ; Isoproterenol ; Male ; Syncope ; Tachycardia, Ventricular* ; Verapamil

Crossed testicular ectopia is an uncommon anatomical abnormality in which both gonads migrate toward the same hemiscrotum. We report a case of crossed testicular ectopia associated with bilateral cryptorchism. The crossed ectopic and intra-abdominal testis was fixed in it's own hemiscrotum by laparoscopic orchiopexy.
Cryptorchidism* ; Gonads ; Humans ; Laparoscopy ; Male ; Orchiopexy ; Testis

BACKGROUND: Since the pathologic findings of Crohn's disease (CD) and intestinal tuberculosis (IT) overlap to a large degree, the development of other biomarkers will be of great help for making the differential diagnosis of these 2 diseases. The aim of the present study is to examine the clinical efficacy of using the tissue angiotensin converting enzyme (ACE) assay in making the differential diagnosis between CD and IT. METHODS: Tissue specimens were obtained from 36 patients who were diagnosed with CD or IT by the colonoscopic biopsy, as well as by the clinical findings. The expression of tissue ACE was detected by immunohistochemical staining. The optimal cut-off value of the immunoreactive scoring (IRS) system we used to differentiate CD from IT was determined by analysis of the ROC curve and AUROC. RESULTS: Granuloma was present in 15 of 19 patients with CD (78.9%) and in 15 of 17 patients with IT (88.2%). ACE was present in the cytoplasm of the epithelioid cells in the granulomas from 13 of 15 patients with CD and in 14 of 15 patients with IT. The IRS scores of ACE were greater in the patients with CD than that of the patients with IT (8.07+/-4.38 vs. 4.13+/-2.47, respectively, p=0.006). In differentiating CD from IT, the AUROC curve for the IRS of ACE was 0.767 with a sensitivity of 66.7%, a specificity of 93.3% and the cut-off point was 7.5. CONCLUSIONS: The results of our study suggest that the assessment of the tissue ACE expression can be helpful for making the differential diagnosis between CD and IT.
Tuberculosis, Gastrointestinal/*diagnosis/enzymology/pathology ; Retrospective Studies ; Peptidyl-Dipeptidase A/*metabolism ; Middle Aged ; Male ; Immunoenzyme Techniques ; Humans ; Granuloma/pathology ; Female ; Diagnosis, Differential ; Crohn Disease/*diagnosis/enzymology/pathology ; Colonoscopy ; Biological Markers ; Aged ; Adult ; Adolescent

Previous studies suggest that maternal characteristics may be associated with neonatal outcomes. However, the influence of maternal characteristics on birth weight (BW) has not been adequately determined in Korean populations. We investigated associations between maternal characteristics and BW in a sample of 813 Korean women living in the Seoul metropolitan area, Korea recruited using data from the prospective hospital-based COhort for Childhood Origin of Asthma and allergic diseases (COCOA) between 2007 and 2011. The mean maternal age at delivery was 32.3 +/- 3.5 yr and prepregnancy maternal body mass index (BMI) was 20.7 +/- 2.5 kg/m2. The mean BW of infant was 3,196 +/- 406 g. The overall prevalence of a maternal history of allergic disease was 32.9% and the overall prevalence of allergic symptoms was 65.1%. In multivariate regression models, prepregnancy maternal BMI and gestational age at delivery were positively and a maternal history of allergic disease and nulliparity were negatively associated with BW (all P < 0.05). Presence of allergic symptoms in the mother was not associated with BW. In conclusion, prepregnancy maternal BMI, gestational age at delivery, a maternal history of allergic disease, and nulliparity may be associated with BW, respectively.
Adult ; *Birth Weight ; Body Mass Index ; Cohort Studies ; Female ; Gestational Age ; Humans ; Hypersensitivity/diagnosis/epidemiology ; Infant, Newborn ; Linear Models ; Male ; *Mothers ; Parity ; Pregnancy ; Republic of Korea/epidemiology

Background: A ThinPrep(R) Processor was developed to overcome the limitations of conventional cytology and is widely used to diagnose various cancers. This study compared the diagnostic efficacy of conventional cytology for lung cancer with that of the ThinPrep(R) cytology using the bronchial washing fluid. Methods: The bronchial washing fluid of 790 patients from Jan. 2002 to Dec. 2006, who were suspected of gaving a lung malignancy, was evaluated. Both ThinPrep(R) and conventional cytology were performed for all specimens. Result: Four hundred forty-six men and 344 women were enrolled in this study, and 197 of them were diagnosed with cancer from either a bronchoscopic biopsy or a percutaneous needle aspiration biopsy. ThinPrep(R) cytology showed a sensitivity, specificity, positive predictive value, negative predictive value and false negative error rate of 71.1%, 98.0%, 92.1%, 91.1%, 8.9%, respectively. The conventional cytology showed sensitivity, specificity, positive predictive value, nagative predictive value and false negative error rate of 57.9%, 98.0%, 90.5%, 87.5%, 12.5%, respectively. For central lesions, the sensitivity of conventional cytology and ThinPrep(R) were 70.1% and 82.8%, respectively. Conclusion: ThinPrep(R) cytology showed a higher sensitivity and lower false negative error rate than conventional cytology. This result was unaffected by the histological classification of lung cancer. Therefore, ThinPrep(R) cytology appears to be a useful method for increasing the detection rate of lung cancer in bronchial washing cytology test.
Biopsy ; Biopsy, Needle ; Classification ; Diagnosis* ; Female ; Humans ; Lung Neoplasms* ; Lung* ; Male ; Needles

PURPOSE: Previous studies suggest that the concentration of 25-hydroxyvitamin D [25(OH)D] in cord blood may show an inverse association with respiratory tract infections (RTI) during childhood. The aim of the present study was to examine the influence of 25(OH)D concentrations in cord blood on infant RTI in a Korean birth cohort. METHODS: The levels of 25(OH)D in cord blood obtained from 525 Korean newborns in the prospective COhort for Childhood Origin of Asthma and allergic diseases were examined. The primary outcome variable of interest was the prevalence of RTI at 6-month follow-up, as diagnosed by pediatricians and pediatric allergy and pulmonology specialists. RTI included acute nasopharyngitis, rhinosinusitis, otitis media, croup, tracheobronchitis, bronchiolitis, and pneumonia. RESULTS: The median concentration of 25(OH)D in cord blood was 32.0 nmol/L (interquartile range, 21.4 to 53.2). One hundred and eighty neonates (34.3%) showed 25(OH)D concentrations less than 25.0 nmol/L, 292 (55.6%) showed 25(OH)D concentrations of 25.0-74.9 nmol/L, and 53 (10.1%) showed concentrations of > or =75.0 nmol/L. Adjusting for the season of birth, multivitamin intake during pregnancy, and exposure to passive smoking during pregnancy, 25(OH)D concentrations showed an inverse association with the risk of acquiring acute nasopharyngitis by 6 months of age (P for trend=0.0004). CONCLUSION: The results show that 89.9% of healthy newborns in Korea are born with vitamin D insufficiency or deficiency (55.6% and 34.3%, respectively). Cord blood vitamin D insufficiency or deficiency in healthy neonates is associated with an increased risk of acute nasopharyngitis by 6 months of age. More time spent outdoors and more intensified vitamin D supplementation for pregnant women may be needed to prevent the onset of acute nasopharyngitis in infants.
Asthma ; Bronchiolitis ; Cohort Studies* ; Croup ; Fetal Blood* ; Follow-Up Studies ; Humans ; Hypersensitivity ; Infant ; Infant, Newborn ; Korea ; Nasopharyngitis ; Otitis Media ; Parturition ; Pregnancy ; Pregnant Women ; Prevalence ; Prospective Studies ; Respiratory System Abnormalities* ; Respiratory Tract Infections* ; Seasons ; Specialization ; Tobacco Smoke Pollution ; Vitamin D

Aged ; Aorta ; Heart ; diagnostic imaging ; Humans ; Male ; Radiography ; Thymus Neoplasms ; diagnostic imaging

BACKGROUND: Since the bioavailability of itraconazole capsule is influenced by patients gastric acidity, it results in treatment failure due to its low dissolution and subsequent low absorption when administered in fasting. Itraconazole Melt-Extrusion tablet has been lately developed in order to improve its dissolution profile. It is the first clinical study to evaluate the efficacy and safety of itraconazole Melt-Extrusion tablet in Korea. OBJECTIVE: This study was conducted to evaluate the efficacy and safety of itraconazole melt-extrusion tablet 400mg daily for 1 week(pulse therapy) for hyperkeratotic type of tinea pedis and manus. METHODS: A clinical and mycological investigation was made of 812 outpatients with hyperkeratotic type of tinea pedis and/or tinea manus who had visited at 52 general hospitals under the lead of the Korean Dermatological Association from June to December, 1998. Patients confirmed by clinically and microscopically as hyperkeratotic type of tinea pedis and/or tinea manus were administered 2 tablets twice a day for one week and followed up for 8 weeks from the start of the medication. RESULTS: The results were summarized as follows; 1. Clinical symptoms of hyperkeratotic type of tinea pedis and/or tinea mauns were significantly improved at the end of study, week 8(p<0.001). 2. Clinical response rate, defined as more than 50% decrease of the sum of the clinical symptom scores, was 79.3%(512/646). 3. Mycological cure rate, dafined as both culture and KOH negative at week 8, was 78.2%(244 /312). 4. 40(5.5%) patients, of the 727 patients evaluable for drug safety evaluation, were reported to have adverse event. CONCLUSION: Itraconazole Melt-Extrusion tablet 400mg/day for 1 week (pulse therapy) is effective and safe in the treatment of hyperkeratotic type of tinea pedis and/or tinea manus.
Absorption ; Biological Availability ; Fasting ; Gastric Acid ; Hospitals, General ; Humans ; Itraconazole* ; Korea ; Outpatients ; Tablets ; Tinea Pedis* ; Tinea* ; Treatment Failure