: In order to know the species and frequency of human parasitic infection diagnosed by biopsy, 149 cases (0.18%) of parasitic infection were reviwed, which were selected from 80,947 biopsied materials submitted for routine histopathological examination during a period of 10 years from 1980 to 1989 at Department of Pathology, Chonnam National University Hospital. They consisted of 112 cases of cysticercosis, 17 paragonimiasis, 7 clonorchiasis, 4 amebiasis, 1 sparganosis, 1 enterbiasis, 1 aniskiasis, and 1 fascioliasis respectively. Based on morphological preservation of cysticercus, they could be divided into mild (20.2%), morderate (40.4%), and severe (39.4%) degeneration. Except 2 cases biopsied at the lungs, 15 cases of ectopic paragonimiasis were located at abdominal cavity (8 cases) and central nervous system (7 cases). One case of intrahepatic fascioliasis was observed. This is the 13th human fascioliasis reported in Korea. From the above results, the frequency of parasitic infections found in biopsied specimens was on the decrease as the cysticercosis and ectopic paragonimiasis.
parasitology-helminth-cestoda-nematoda-trematoda ; biopsy ; histopathology ; tissue parasite ; cysticercose ; ectopic ; Enterobius vermicularis ; Taenia solium ; Paragonimus westermani ; Clonorchis sinensis ; Entamoeba histolytica ; Anisakis ; Fasciola sp. ; paragonimiasis ; fascioliasis

Chest CT scans of 70 patents with malignant lymphoma were reviewed to evaluate the thoacic manifestation of malignant lymphoma. Sixteen patients had Hodgkin's disease and 54 patients had non-Hodgkin's lymphoma. The thoracic involvement of malignant lymphoma was observed i 47 patients (67.1%) and 11 of these patients had Hodgkin's disease, and 36 had non-Hodgkin's lympoma. The most common finding was mediastinal lymphadenopathy and the most frequently involved sites were anterior mediastinal and paratracheal lymph nodes. Pulmonary parenchymal involvement was seen in 11 patients (15.7%), and CT scan showed thickening of bronchovascular bundle, parenchymal consolidation and nodules. Pleural effusion was seen in 18 patients (25.7%), however, without any evidence of parietal pleural thickening in all cases. Involvement of chest wall and breast was seen in two patient(2.9%). The data obtained through the current study showed no differences from those of previous reports, except the fact that there was no CT evidence of pleural thickening in patients who had pleural effusion.
Breast ; Hodgkin Disease ; Humans ; Lymph Nodes ; Lymphatic Diseases ; Lymphoma* ; Lymphoma, Non-Hodgkin ; Pleural Effusion ; Rabeprazole ; Thoracic Wall ; Tomography, X-Ray Computed

Most of the peripheral nerve injuries from crushing or compressive forces are accompanied by surrounding soft tissue injuries. As a result, poor vascularity due to fibrosis and sacr formation compromises regeneration of the grafted nerve. Vascularized nerve graft shows superior regeneration to that of a non-vascularized one. However, the human body provides few donor sites of vascularized nerve graft clinically. We presumed that the prefabricated myoneural or adiponeural flap, which include fabricated nerves wrapped with surrounding vascularized muscle or adipose tissue flap, influences superiorly on the regeneration of grafted nerve because that surrounding vasculatity indirectly enhances the vascularity of the grafted nerve itself. Thirty adult male Sprague-Dawley rats were divided into three groups: 1) conventional reversed autogenous graft of the femoral nerve alone(n=10); 2) nerve graft entubulated with abdominal adipose tissue flap with a pedicle of inferior epigastric artery(n=10); 3) nerve graft entubulated with adductor muscle flap with a pedicle of the first muscular branch of the femoral artery(n=10). At three months postoperatively, grafted nerves were examined by electrophysiologic study to check amplitudes and motor nerve conduction velocities, as well as histopathologic study for evaluation of regenerated nerve cells, fibrosis and neo-vascularization. Consquently, nerve regeneration was found in all three groups. Both the myoneural and adiponeural flap groups had better improved results of nerve regeneration compared to that of the conventional nerve graft group. The result of myoneural flap group was superior to that of the adiponeural flap group. The myoneural flap group showed minimal fibrosis and less prominent neovascularization around moderately regenerated nerves. The adiponeural flap group showed more severe perineural and endoneural fibrosis, as well as vascular proliferation around focal regenerated nerves. The results of myoneural flap group proved to be statistically significant. We concluded that it is possible to use nerve graft entubulated with a vascularized muscle flap (myoneural flap) as a substitute for vascularized nerve graft.
Abdominal Fat ; Adipose Tissue ; Adult ; Femoral Nerve ; Fibrosis ; Human Body ; Humans ; Male ; Nerve Regeneration* ; Neural Conduction ; Neurons ; Peripheral Nerve Injuries ; Rats, Sprague-Dawley ; Regeneration ; Soft Tissue Injuries ; Tissue Donors ; Transplants*

No abstract available.

PURPOSE: The objectives of the current study are to assess the accuracy of X-Ray Micro Computed Tomography (microCT) in measuring enamel thickness and to evaluate enamel thickness in maxillary incisors of Koreans. MATERIAL AND METHODS: Five maxillary incisors were embedded in resin block. These teeth were longitudinally sectioned labiolingually through the medial axis. After polishing, the teeth were scanned using a microCT (X-EYE SYSTEM; DRGEM, Seoul, Korea). On a scanning electron microscope (S-4300; Hitachi, Tokyo, Japan) (x20) and a microCT, nearly identical planes were reconstructed. In each tooth, the thickness of labial enamel was measured 1, 3 and 5 mm above the cementoenamel junction (CEJ). Thus, the accuracy of the microCT was evaluated. In addition, using 26 maxillary central incisors and 11 maxillary lateral incisors, in the medial axis and 2 mm remote areas mesially and distally from the medial axis, the thickness of labial enamel was measured 1, 3 and 5 mm above the CEJ along the long axis of the teeth RESULTS: Measurements from nearly identical planes in physical and microCT sections differed by 3.81%. An independent t-test was performed and this showed that there were no significant differences in the measurements between the two methods. Mean values of labial enamel thickness in maxillary central incisors 1, 3 and 5 mm above the CEJ were 0.32 +/- 0.01, 0.50 +/- 0.02 and 0.70 +/- 0.02 mm, respectively. Mean values of labial enamel thickness in maxillary lateral incisors 1, 3 and 5 mm above the CEJ were 0.30 +/- 0.01, 0.55 +/- 0.03 and 0.80 +/- 0.02 mm, respectively. CONCLUSION: In measuring enamel thickness, microCT is one of useful way of measurement. So according to the results of this research, when restoring a porcelain laminate veneer on maxillary incisors in Koreans, careful consideration is needed in the amount of enamel reduction.
Axis, Cervical Vertebra ; Dental Enamel ; Dental Porcelain ; Electrons ; Incisor ; Microscopy, Electron, Scanning ; Tokyo ; Tooth ; Tooth Cervix ; X-Ray Microtomography

To evaluate the diagnostic accuracy of two-dimensional echocardiogrphy(2-D echo) in ventricular septal defect, location and size of the defects, estimated right ventricular systolic pressure and associated cardiac anomaly were compared to the operative findings in 139 children operated for correction of ventricular septal defect at Severance Hospital from Jan. 1983 to June 1987. In addition, postoperative complications and mortality cases were anlysed. The following results were obtained; 1) Perimembranous defects were 82 cases(66.1%), subarterial infundibular defects 33 cases(26.6%), and muscular defect was found in only 1 case(0.8%). The accuracy of 2-D echo in localizing the defects was 84.2%. 2) In 79.2% of the patients, the defects were moderate to large in size, and actual size measured at operation was larger than that obtained by echocardography in general. 3) The estimated right ventricular systolic pressure was correlated(r=0.650) with that measured at the operating field. 4) Combined cardiac anomalies were patent ductus arteriosus(22 cases), atrial septal defect(3 cases), valvular pulmonic stenosis(2 cases) and interventricular septal aneurysm(2 cases). The sensitivity of 2-D echo in detecting these anomalies was 65.5% and the specificity was 96.4%. 5) Among 32 patients who had postoperative complications, in two thirds, there were pulmonary complication including lung atelectasis(16 cases), pleural effusion(5 cases)and pneumonia(5 cases). 6) Operative mortality was 2.9%(4 cases). The causes of death were low cardiac output state due to left ventricular myocardial failure in 3 patients and respiratory failure from asphyxia in one case. In conclusion, with close cooperation with cardiac surgeons, there will be few problems in diagnosing and operating patients with ventricular septal defect on the basis of two-dimensional echocardiographic findings without invasive procedures, such as cardiac catheterization, even with pulmonary hypertension, unless Eisenmenger syndrome is complicated.
Asphyxia ; Blood Pressure ; Cardiac Catheterization ; Cardiac Catheters ; Cardiac Output, Low ; Catheterization* ; Catheters* ; Cause of Death ; Child* ; Echocardiography* ; Eisenmenger Complex ; Heart Failure ; Heart Septal Defects, Ventricular* ; Humans ; Hypertension, Pulmonary ; Lung ; Mortality ; Postoperative Complications ; Respiratory Insufficiency ; Sensitivity and Specificity

Total intravenous anesthesia(TIVA) with ketamine and fentanyl has many advantages such as no air pollution, no hepatic or renal toxicity and good postoperative pain relief compared with inhalational anesthesia, but this anesthetic method also has several disadvantages such as hypertension, delayed recovery and emergence delirium. For improvement of this problems, the authors tried new TIVA method with propofol and fentanyl to the 20 patients in ASA class I or II and compared this method with 20 patients in ASA class I or II who had been anesthetized with enflurane-N2O from March to May 1992. The results were as follows; 1) Systolic blood pressure decreased after induction from 127+/-12mmHg to 105+/-17mmHg in propofol-fentanyl group(p<0.05) and mean arterial pressure decreased after induction from 93 9 mmHg to 799 mmHg in propofol-fentanyl group and from 98+/-10 mmHg to 83+/-11 mmHg in enflurane-N2O group(p<0.05), but they became preoperative values during operation in both groups. RPP(rate-pressure product) and heart rate decreased about 28-39% after induction and during operation in propofol-fentanyl group(p<0.05) but there was no change in enflurane- N2 group. 2) The data of arterial blood gas had no clinically significant changes in both groups. 3) The blood sugar level increased during operation(p<0.05) but it became preoperative value from postoperative 30 min in both groups. 4) There were no clinically significant changes in hepatic or renal function test of postoperative 3rd day compared with preoperative one. 5) There were no postoperative complications except 2 cases of nausea in propofol-fentanyl group. 6) Emergence time and recovery time had no difference in both groups but the duration from arrival on recovery room to postanesthetic recovery score of 10 was shorter in propofol- fentanyl group(7.5+/-7.3 min) than in enflurane-N2O group(16.7+/-l0.3 min)(p<0.05). Therefore TIVA with propofol and fentanyl is considered to have good controllability nearly equal to enflurane-N2O anesthesia and it can be applied as one of general anesthetic methods in the case of contraindication to N2O and volatile anesthetics, but futher study will be required to quantify the appropriate dosage of propofol or fentanyl to minimize perioperative hemodynamic changes and respiratory depression.
Air Pollution ; Anesthesia ; Anesthesia, Intravenous* ; Anesthetics ; Arterial Pressure ; Blood Glucose ; Blood Pressure ; Delirium ; Enflurane ; Fentanyl* ; Heart Rate ; Hemodynamics ; Humans ; Hypertension ; Ketamine ; Nausea ; Pain, Postoperative ; Postoperative Complications ; Propofol* ; Recovery Room ; Respiratory Insufficiency

BACKGROUND & PURPOSE: The aim of our study is to evaluate the stroke pattern, the correlation of collateralization with cerebral perfusion and stroke severity, and the utility of transcranial Doppler(TCD) to detect collateral pathways in patients with internal carotid artery(ICA) occlusion in the neck. METHODS: Thirty-six patients(28 men and 8 women, mean age of 59.6 ? 12.9 years) with ICA occlusion confirmed by transfemoral cerebral angiography(25 patients) or magnetic resonance angiography(MRA, 11 patients) were studied retrospectively. They had no potential cardiac source of stroke. We evaluated the pattern of cerebral infarcts by magnetic resonance imaging, and the number and the patency of collateral vessels, and the degree of perfusion through collaterals by cerebral angiography. The collateral vessels detected by TCD and MRA were compared with those by cerebral angiography. RESULTS: We found territorial infarcts in 23 patients(64%) and borderzone infarcts in 15(42%). Territorial infarcts(p<0.0001) and borderzone infarcts(p=0.02) occurred more in the ipsilateral hemisphere to the occluded ICA. The prevalence of small subcortical infarcts did not differ between hemispheres. Collateralizations through leptomeningeal anastomosis(p<0.01) and ophthalmic artery(OA, p<0.05) were associated with angiographically reduced cerebral perfusion. Collateralization through OA was also associated with severe symptomatic group(p<0.05); and collateralization through anterior or posterior communicating artery was associated with mild symptomatic group with marginal statistical significance(p=0.097). The number of collateral vessels was associated with neither the degree of perfusion nor the stroke severity. The sensitivity and specificity of TCD to detect collateralization through anterior communicating artery were 100% and 78%, through posterior communicating artery, 67% and 75%, and through OA, 67% and 63%, respectively. CONCLUSION: Cerebral infarcts related to a proximal ICA occlusion are more likely to be ipsilateral territorial or borderzone. The type of collateralization is more important factor for cerebral perfusion and stroke severity than the number of collateral vessels. TCD is a reliable tool for the evaluation of the collateral vessels in the patients with ICA occlusion.
Arteries ; Carotid Artery, Internal* ; Cerebral Angiography ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; Neck* ; Perfusion ; Prevalence ; Retrospective Studies ; Sensitivity and Specificity ; Stroke*

PURPOSE: To evaluate the difference of retinal nerve fiber layer measurements as obtained by Nerve Fiber Analyser according to visual field defects in subjects with large Cup-to-Disc ratio (C/D ratio>or=0.6) and to determine which predictable parameters are useful in glaucoma diagnosis. METHODS: Fifty one normal subjects, 17 patients with glaucoma, 18 glaucoma suspects based on optic disc appearance and visual field defect participated. Nerve fiber layer thickness assessments using scanning laser polarimeter (Nerve Fiber Analyzer II software version 2.1.; Laser Diagnostic Technologies, Inc., San Diego, California, U.S.A.) were measured in normal subjects, patients with glaucoma, and glaucoma suspects. Measured nerve fiber layer thickness parameters were compared each other. RESULTS: Superior to inferior ratio (S/I ratio) was only statistically significant parameter to differentiate glaucoma from glaucoma suspects having glaucomatous optic nerve head. CONCLUSIONS: Superior to inferior ratio (S/I ratio) is useful parameter to predict differentiating patients with glaucoma from glaucoma suspects.
California ; Diagnosis ; Glaucoma* ; Humans ; Nerve Fibers* ; Optic Disk ; Retinaldehyde* ; Scanning Laser Polarimetry ; Visual Fields

PURPOSE: We performed this study to evaluate the changes of total leukocytes and leukocyte types in CSF and peripheral blood (PB) in the early course of aseptic meningitis. METHODS: One hundred and eighty-nine children with aseptic meningitis, who were admitted to the Pediatric Department of Dong-A University Hospital during the period from June 1996 to October 1997 were included. Patients were divided into 4 groups by 12-hour intervals according to the time between the onset of illness and initial diagnostic lumbar puncture. We analyzed clinical pictures, total leukocytes and leukocyte types in CSF and peripheral blood (PB) in each group. RESULTS: 1) There was no significant difference in average total leukocyte counts in CSF between each group, and all groups were considered to be acute stage of illness. 2) The PMNL proportion of CSF leukocytes was 57.0+/-31.6% in group I, 44.1+/-32.3% in group II, 39.4+/-33.1% in group III and 26.9+/-27.9% in group IV. The PMNL percentage was significantly higher in group I than group III and IV and the proportion of patients with a predominance of PMNL was higher in group I than group III and IV (p<0.05) 3) The proportion of neutrophils in PB was highest in group I (76.5+/-15.7%) and significantly higher in group I and II than group III and IV (p<0.05). 4) Significant correlations were found between the proportion of PMNL in CSF and PB of patients (r=0.62, p<0.001) CONCLUSION: The change from a predominance of PMNL to a predominance of mononucler leukocytes was occurred 12-24 hours after onset, and there was a strong correlation between the proportion of neutrophils in CSF and PB.
Cerebrospinal Fluid* ; Child ; Humans ; Leukocyte Count ; Leukocytes* ; Meningitis, Aseptic* ; Neutrophils ; Spinal Puncture