The goal of cancer treatment is generally pain reduction and function recovery. However, drug therapy does not treat pain adequately in approximately 43% of patients, and the latter may have to undergo a nerve block or neurolysis. In the case reported here, a 42-year-old female patient with lung cancer (adenocarcinoma) developed paraplegia after receiving T8-10 and 11th intercostal nerve neurolysis and T9-10 interlaminar epidural steroid injections. An MRI results revealed extensive swelling of the spinal cord between the T4 spinal cord and conus medullaris, and T5, 7-11, and L1 bone metastasis. Although steroid therapy was administered, the paraplegia did not improve.
The modern tunnel tends to be long and deep and therefore has a lot of difficulties for effective smoke ventilation on fire due to the semi-hermetic structure. Also, it has difficulty on evacuation and fire fighting by toxic gases together with high increase rate of temperature. The smoke occurring on fire is to avoid spreading over adjacent area and secure a escape road for prolonging the escape time. Accordingly, test on performance evaluation has been carried out applying air curtain, local smoke extraction facilities, in this study. As a result of the test, it can be seen that the smoke barrier formed by the air curtain has an effect on prevention of the smoke layer spreading. In addition, in the result of the measurement on the carbon monoxide inside and outside the barrier by the air curtain, there was difference of 40-time carbon monoxide inside and outside. Therefore, it has been shown that the effect to prevent the smoke from spreading is expected on fire of the tunnel applying the air curtain.
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