The authors present 31 patient with acute epidural hematoma who had been admitted from January, 1987 to June. 1989 managed by consevative treatment. The results were as follows ; 1) The age of patients was distributed evenly, most patients were male (26 cases) and the most common mechanism of injury was traffic accidents(14 cases). 2) Sites of hematoma were mostly the temporal and parietal area and the maximum thickness of hematoma was not different from each site. 3) On admission, all patients presented GCS score above 13 except 2 cases. 4) All patients did not undergo delayed up, due to the enlargement of the hematoma or neurological deterioration. 5) The maximum thickness of hematoma was under 20 mm in all patients. 6) The hematoma was resolved within 30 days in all cases. This was confirmed with brain CT scan.
Brain ; Hematoma* ; Humans ; Male ; Rabeprazole ; Tomography, X-Ray Computed

The authors compared the changes of morphology, blood brain barrier alteration, pathology, arterial blood lactate content and cerebrospinal fluid lactate content between an intermittent brain retraction group and a continuous brain retraction group in 56 mongrel cats. The results were as follows ; 1) Microscopically, hemorrhages were punctate in 15 cases among 25 cases in the intermittent retraction group. However, there were multiple or large hemorrhages in 13 cases among the 25 cases in the continuous brain retraction group. 2) All cases of the intermittent retraction group showed 0~25% Evans blue staining of the coronal section crossing the retraction site. However, 8 cases among the 25 cases of the continuous retraction group showed 51~75% Evans blue staining and 4 cases of this group showed 76~100% staining. 3) With photomicroscopy, the authors noted small hemorrhage and cellular swelling in the intermittent retraction group instead of pyknosis, hemorrhagic necrosis, vacuolation in the continuous retraction group. 4) The change of arterial blood lactate content was from 1.22+/-0.24mmol/L at preretraction time to 1.42+/-0.26mmol/L at 90 minutes after release of retractor in the intermittent retraction group(p<0.01). In the continuous retraction group, the authors noted a change in the lactate content from 1.20+/-0.38mmol/L to 3.15+/-0.97mmol/L for the same time as above(p<0.001). 5) The change of CSF lactate content in the intermittent retraction group was from 1.39+/-0.29mmol/L at preretraction time to 1.43+/-0.23mmol/L at 90 minutes after release of retractor(p>0.05). In the continuous retraction group, this author noted change in the lactate content from 1.37+/-0.28mmol/L to 2.11+/-0.52mmol/L for the same time as described above(p<0.01). From the above results, the superiority of the intermittent brain retraction was demonstrated as compared with the continuous brain retraction. Also the possible utilization of this experimental method was discussed for other wxperimental studies on ischemia.
Animals ; Blood-Brain Barrier ; Brain* ; Cats* ; Cerebrospinal Fluid ; Evans Blue ; Hemorrhage ; Ischemia ; Lactic Acid ; Necrosis ; Pathology

Aphakic or pseudophakic glau-oma is known to be at high risk for failure after filtration surgery. The authors retrospectively investigated the results of trabeculectomy in 14 eyes of 14 patients with glaucoma, seven aphakic and seven pseudophakic eyes, which were followed from six months to three years with an average ot 16.5 months. A conventional trabeculectomy without using antifibrotic agents was performed in all the eyes. The site of conjunctival incision was prepared on the virgin area of the conjunctiva; 8 superonasal, 4 inferonasal and 2 inferotemporal approaches. An average postoperative intraocular pressure reduction was 13.4 mmHg. The number of medications decreased in 11 eyes. A spontaneously developed functioning bleb was found in seven eyes. In other four eyes, the filtering bleb was formed with an aid of massage or needling. The remallllllg three eyes did not show a functioning bleb. Postoperative complications included hyphema in 3 eyes, overfiltration in 2 eyes, choroidal detachment in 1 eye, corneal edema in 1 eye and endophthalmitis in 1 eye.
Aphakia* ; Blister ; Choroid ; Conjunctiva ; Corneal Edema ; Endophthalmitis ; Filtering Surgery* ; Glaucoma ; Humans ; Hyphema ; Intraocular Pressure ; Massage ; Postoperative Complications ; Pseudophakia* ; Retrospective Studies ; Trabeculectomy

In a series of 20 young rats, three cortical lesions were made in each hemisphere. Two of these lesions were filled with avitene and gelfoam, while the third was left empty as a control. The animals were killed successively on weeks 1, 2, 4 and 8 after the operation. The results were as follows : 1) Although there was no difference in the type of tissue reactions, avitene was more rapid and profound than gelfoam in the process and degree of inflammatory reaction at the same periods. 2) Avitene biodegradaded more rapidly than gelfoam. 3) The extent of fibrosis and adhesion to the surrounding brain tissues were not grossly different between these two agents but more profound histopathologically in avitene at the same periods. With these results, we could conclude that the avitene was superior to the gelfoam as the hemostatic agent in neurosurgical area.
Animals ; Brain* ; Collagen ; Fibrosis ; Gelatin Sponge, Absorbable ; Rats

A tracheostomy is the safest and popular method for maintaining airway. Recently, this method is interesting in neurosurgical unit respiratory care in brain damaged patients. Authors had performed a tracheostomy on 20 cases among the brain damaged patients and evaluated it's effect by PaO2 and PaCO2 change, respiratory and Glasgow coma scale change between pretracheostomic and posttracheostomic state. Also, it's complications were evaluated. The results are as follows ; 1) After tracheostomy, significant elevations were noted in mean arterial oxygen tension from 65.55+/-19.34mmHg to 85.83+/-33.53mmHg at 30mins, to 84.48+/-29.12mmHg at 60mins, to 97.00+/-21.25mmHg at 120mins. 2) After tracheostomy, significant changes were not noted in mean arterial carbon dioxide tension. 3) After tracheostomy, progressive decrease in mean respiratory rate per min. were noted from 27.6+6.44 to 21.89+2.79 during 24hrs. 4) After tracheostpmy, slight improvement in mean Glasgow coma scale were noted from 7.7+2.54 to 8.25+2.95 during 24hrs. 5) The complications occured in 5 cases. 4 cases of them were pneumonias and 1 case of them was hemorrhage. From above results, Authors conclude that tracheostomy improves poor clinical status including hypoxemia and tachypnea which have influence on brain metabolism in the brain damaged patients.
Anoxia ; Brain* ; Carbon Dioxide ; Glasgow Coma Scale ; Hemorrhage ; Humans ; Metabolism ; Oxygen ; Pneumonia ; Respiratory Rate ; Tachypnea ; Tracheostomy*

No abstract available.
Glioblastoma*

Tension pneumocephalus is rare complication is neurosurgical operation. But it should be treated promptly because of sudden neurological deterioration. Computed tomography permitted rapid diagnosis including localization of the air, thus facilitating prompt treatment. A case of subdural tension pneumocephalus after cranial operation under the impression of bifrontal subdural hygroma is presented.
Diagnosis ; Pneumocephalus* ; Subdural Effusion

PURPOSE: To correlate SOhographic and pathologic findings of gallbladder adenoma, and to evaluate the clinical significance of sonographic findings. MATERIALS AND METHODS: Ultrasound findings of twenty gallbladder adenomas were retrospectively reviewed to evaluate the size, shape and echogenicity of the adenoma, and was correlated with the pathological finding. RESULTS: Among 14 patients, 11 patients had single lesion and 3 patients had multiple lesions. Three patients showed 2, 3 and 4 adenomas, respectively. Nine of 20 lesions showed focal dysplasia pathologically. Among the nine adenomas with dysplasia, two adenomas showed focal cancerous change. The nine adenomas showing focal dysplasia measured 25.6mm (14-35mm) in mean diameter, while the mean diameter of adenomas without dysplasia was 8.7 mm (3-13mm). The echogenicity of adenoma with focal dysplasia were hyperechoic in 8, isoechoic in 1. The echogenicity of adenomas without dysplasia were hyperechoic in 7, isoechoic in 4. Sessile(7/9) and papillary shape(6/9) were predominant in adenoma with dysplasia, but smooth shape(8/11) and stalked type(9/11) were predominant in adenoma without dysplasia. Two adenomas with focal cancerous change showed histological transition from cancer to dysplasia and to adenomatous tissue. In adenoma with dysplasia, the diameter more than 14 mm on sonography was statistically significant (p<0. 005). Also age of patient was significantly different between the two groups (p<0.01), while echogenicity and associated stone were not statistically significant. CONCLUSION: As gallbladder adenoma more than 14ram in diameter on US is suggestive of dysplasia on pathology, so, close follow up US or surgery is recommended.
Adenoma* ; Follow-Up Studies ; Gallbladder* ; Humans ; Pathology ; Retrospective Studies ; Ultrasonography

This study examined the late pathological finding, clinical manifestation, and mortality in thirty-two rats with cerebral infarction induced by common carotied artery ligation. Thirty-two rats were divided into three group : Group A-a unilateral common carotid artery ligation group of twelve animals, Group B-a total common carotid artery ligation one side and partial common carotid artery ligation another side of eighteen animals, and Group C-bilateral common carotid arteries ligation of two animal. All animals surviving for 3 weeks were sacrified by intracardial injection of 2 M KCI 5cc and 2.5cc of 2% T.T.C. solution was infused into each common carotid arteries. The brain was rapidly rmoved and sectioned coronally and examined with the aid of a stereoscopic microscope for degree of T.T.C. stain and infarction. Brain was fixed and examined histologically. The results were as follows : 1) Mortality rate of each group : a unilateral common carotid artery ligation group was 16.67%, a total. Common carotid artery ligation on side and partial common carotid artery ligation another side group was 77.78%, and bilateral common arteries ligation group was 100%. 2) Clinical manifestation was showed as follows : hemiparesis, circling movement, abnormal seizure like activity, and ptosis. 3) Percent hemispheric volume infarction(%HVI) was 40%(mean value) in unilateral total common carotid artery ligation and 60% in total ligation one side and 46.25% in partial ligation another side. 4) The pathological change was signigicantly visible in bilateral ligation group.
Animals ; Arteries ; Brain ; Carotid Artery, Common* ; Cerebral Infarction ; Dyskinesias ; Infarction ; Ligation* ; Mortality ; Paresis ; Rats* ; Seizures

PURPOSE: The aim of this study was to evaluate the utility of contrast-enhanced MRI with first-pass and delayed images in prediction of myocardial viability after acute myocardial infarction. MATERIALS AND METHODS: Ten patients (M:F=:4, mean age =6 5 years) with acute myocardial infarction underwent first-pass image after bolus injection of gadolinium (one image/sec for 120sec)and delayed image (7 2 minutes later). According to 60 segments on midventricular level, the assessment of MRI were concerned about location of lesion, depth of lesion, enhancement on first-pass image and enhancement pattern on delayed image. MRI findings were compared with wall motion on resting echocardiography and stress or follow-up echocardiography. RESULTS: 1) MRI findings were classified into 4 types: normal enhancement on first-pass and delayed images (type 1), normal enhancement on first-pass image and nontransmural hyperenhancement on delayed image (type 2), non-transmural enhancing defect on first-pass image and transmural enhancement with endocardial non-enhancing defect on delayed image (type 3), and transmural enhancing defect on first-pass image and transmural hyperenhancement on delayed image (type 4).2) Type 2 suggested viable myocardium and type 3 had high porbability of viability. Type was compatible with non-viable myocardium. CONCLUSION: Enhancing defect on first-pass image and involving thickness on both the first-pass image and delayed image in contrast enhanced MRI may predict myocardial viability.
Echocardiography ; Follow-Up Studies ; Gadolinium ; Humans ; Magnetic Resonance Imaging* ; Myocardial Infarction* ; Myocardium