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급성 경막하 혈종을 동반한 영아기 Vitamin K 결핍성 출혈성 질환
조규용,정신,오민석 대한신경외과학회 1991 Journal of Korean neurosurgical society Vol.20 No.10-11
We had experienced 2 cases of acute subdural hematoma due to vitamin K(vit. K) deficiency. They were 44-and 42-day-old. After the adminstration of vit. K₁, prolonged prothrombin time (PT) and activated partial thromboplastin time (APTT) were corrected, so the surgical treatment was performed. We supposed the predisposing factors were breast feeding and unknown hepatic pathology. No complication remained to one infant but the other multiple cerebral infarctions. The etiology, pathogenesis, diagnosis, prevention are discussed. We insist on neonatal administration of vit. K₁for the prevention of bleeding tendency. If intracranial hemorrhage develops, we must keep in mind that early neurosurgical intervention may be needed.
원충희,曺圭勇 公州大學校스포츠科學硏究所 1999 스포츠科學硏究所論文集 Vol.- No.13
The purpose of this study is to observe the recovery of blood pressure and heartbeat rate of overweight, normal, and underweight students after they run 800m race and apply the results to class. To serve this aim, the blood pressure and the heartbeat rate in the normal situation without exercising, immediately, 5, 10, and 15 minutes after 800m race were comparatively analyzed. The subjects were 36 girl students from K-Middle School and they were taken out at random and measured both in the classroom and on the playground. For the athletic load quantity, the blood pressure and heartbeat rate were measured after 800m race without any special training. The data were statistically computerized in the method of SPSS/PC Program and the differences of blood pressure and heartbeat rate in the three groups were verified in the method of a one-way ANOVA. The results obtained from the analysis were as follows. 1. In normal situation, the blood pressure of the overweight students showed 119/71.08㎜Hg, the normal students 118.00/70.08㎜Hg, the underweight students 118.83/74.00㎜Hg, and the heartbeat rate of the overweight students showed 78.17/min., the normal students 79.17/min., the underweight students 77.25/min. As a result, the systolic blood pressure of the overweight students and the normal students were nearly the same, however the underweight students showed a bit lower. The heartbeat rates of three groups were almost the same. 2. Immediately after 800m race, the systolic blood pressure of the overweight students was the highest and that of the normal students was the lowest and there was a little difference between the overweight students and the other two groups, and the diastolic blood pressure was higher than that at resting in all the three groups. And the heartbeat rate showed almost twice the usual. 3. In 5 minutes after 800m race, the systolic blood pressure of the normal students recovered rapidly, the underweight students by 72.62% and the overweight students by 54.14%. The diastolic blood pressure of the underweight students dropped much, and the normality of the other two groups approached that of the resting time. The heartbeat rate of all the groups recovered nearly to that of the resting time. 4. In 10 minutes after 800m race, the systolic blood pressure of the underweight students became completely normal and the overweight students recovered by 67.31%, and the diastolic blood pressure of all the groups recovered normally, The heartbeat rate became normal in order of the underweight, normal, overweight student group. 5. In 15 minutes after 800m race, the systolic blood pressure of overweight students recovered by 81.32%, and the diastolic blood pressure of all the groups showed lower than that at resting. The change of the heartbeat rate became normal in order of the underweight, normal, overweight student group.
조규용 ( Kyu Yong Cho ),강추원 ( Choo Won Kang ),고진석 ( Jin Seok Go ) 대한화약발파공학회 2008 화약발파 Vol.26 No.1
In case of estimating the shocking vibration during the blasting demolitions, the weight and falling height of the structure, that is a potential energy, had been considered. But, this study presented a new equation which used the impulse concerning a falling weight instead of potential energy as a method of predicting the shock vibration. In this experiment, the data of the impulse were compared with the data of the potential energy by performing the free-fall, and all data were comparatively analyzed by the regression analysis method. Also, the method of the superposition theory, which is calculated by the diminution ratio according to distance, the free-fall difference according to height, and the time giving the shock to the ground according to the breakdown pattern, was compared with the previous vibration data occurring from the blasting demolitions in the same conditions. As a result, this study suggests that the impulse and the method of superposition theory be applied as a method of predicting the shocking vibration. Therefore, these results could be expected to estimate the shocking vibration more accurately than the previous method.
Delayed Operation of Acute Subdural Hematoma in Subacute Stage by Trephine Drainage using Urokinase
강현구,조규용,이래섭,임준섭 대한신경손상학회 2019 Korean Journal of Neurotrauma Vol.15 No.2
Objective: The principle operation of acute subdural hematoma (ASDH) is a craniotomy withhematoma removal, but a trephination with hematoma evacuation may be another method inselected cases. Trephine drainage was performed for ASDH patients in subacute stage usingurokinase (UK) instillation, and its results were evaluated. Methods: Between January 2016 and December 2018, the trephine evacuation using UK wasperformed in 9 patients. The interval between injury and operation was from 1 to 2 weeks. We underwent a burr hole trephination with drainage initially, and waited until the flow ofliquefied hematoma stopped, then instilled UK for the purpose of clot liquefaction. Results: The mean age of patients was 71.6 years (range, 38–90 years). The cause of ASDHwas trauma in 8 cases, and supposed a complication of anticoagulant medication in 1case. Four out of 8 patients took antiplatelet medications and one of them was a chronicalcoholism. The range of the Glasgow Coma Scale score before surgery was from 13 to 15. Most of patients, main symptom was headache at admission. The Glasgow Outcome Scalescore was 5 in 8 cases and 3 in 1 case. Conclusion: It is thought to be a useful operation method in selected patients with ASDHthat the subdural drainage in subacute stage with UK instillation. This method might beanother useful option for the patients with good mental state regardless of age and thepatients with a risk of bleeding due to antithrombotic medications.