Near Infra-red Estimation of Central Nervous System (Spinal Code) Ischemia
Grant-in-Aid for Scientific Research (C)
|Research Institution||University of Tsukuba|
JIKUYA Tomoaki University of Tsukuba, Institute of Clinical Medicine Assistant Professor, 臨床医学系, 講師 (20231368)
|Project Fiscal Year
1997 – 1998
Completed(Fiscal Year 1998)
|Budget Amount *help
¥1,100,000 (Direct Cost : ¥1,100,000)
Fiscal Year 1998 : ¥500,000 (Direct Cost : ¥500,000)
Fiscal Year 1997 : ¥600,000 (Direct Cost : ¥600,000)
|Keywords||near infra-red spectrophotometry / spinal code / ischemia / 1-amino cyclopropanecarboxylic acid / 脊髄虚血 / モニター / 対麻痺 / 硬膜外腔 / 保護 / ウサギ / ACPC / 近赤外分光法 / BLAZER / イヌ|
Immediately and strictly evaluate the spinal code ischemia during the thoracic and thoracoabdominal aneurysm surgery using near infra-red spectrophtometry (NIRS).
Plans for experiments :
1) Develop the monitor of spinal code ischemia using NIRS.
2) Evaluate the effect of NMDA receptor inhibitor in the rabbit spinal code ischemia model.
1) Monitor of spinal code schemia
a. We could evaluate the rabbit spinal code ischemia by means of NIRS monitor that was placed on the lumbar spine.
b, We developed the small NIRS catheter (maximum diameter < 1 mm) which contains two plastic fibers to transmit near infrared light.
c. Newly developed NIRS catheter could easily pass the 1 6G epidural puncture needle.
d, We could observe the dog spinal code ischemia using the newly developed NIRS catheter that was placed in the epidural space.
2) Effect of NMDA receptor inhibitor
a. Wedeveloped the rabbit model of paraplegia due to spinal code schemia.
b. ACPC (1-amino cyclopropanecarboxylic acid) significantly protected the spinal code from the schemic damage.
Research Output (13results)