PMID: 20627006Jul 16, 2010Paper

The "wake-up correction" for preventing spinal cord injury in scoliosis surgery

Zhonghua wai ke za zhi [Chinese journal of surgery]
Huan WangHua Chen

Abstract

To observe the effects of "wake-up correction" technique for preventing iatrogenic spinal cord injury in scoliosis surgery. Twenty-one patients who had scoliosis with Cobb's angle 92 degrees - 145 degrees received operation of pedicle screw insertion in all or important vertebral bodies, release of stiff segments, decompression and osteotomy. All the patients were trained how to wake up before anesthesia. Maintenance of anesthesia was achieved with infusion of propofol at target-controlled concentration 3-4 mg/L and remifentanil at 0.15 microg/(kg.min). Fresh gas 2 L/min of N(2)O:O(2) 1:1 was inhaled during mechanical ventilation. Wake-up methods:the muscle relaxant was stopped injection 30 min before wake-up, decreasing propofol's target-controlled concentration to 1-2 mg/L and remifentanil to 0.05 - 0.10 microg/(kg x min). Once the spontaneous respiration returned, woke up the patients and asked them move both toes following our orders (the first wake-up). Then patients inhaled 6% sevoflurane in fresh gas 6 L/min (N(2)O:O(2) 1:1). When the end-tidal anesthetic gas concentration was arrived 1.3 - 1.5 MAC, all of the anesthetics were stopped. The correction operation was completed and the patient was woke up again (the second w...Continue Reading

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