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| Effect of Controlled Hypotension under General Anesthesia on Intraoperative Blood Loss and Surgical Field in Patients Undergoing Spinal Canal Decompression and Fusion with Internal Fixation |
| ZENG Qiong, XIONG Jing |
| First-author's address: Wanzai County Hospital of Traditional Chinese Medicine, Jiangxi Province, Wanzai 336100, China |
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Abstract Objective: To evaluate the effect of controlled hypotension under general anesthesia on intraoperative blood loss and surgical field in patients undergoing spinal canal decompression and fusion with internal fixation. Method: A total of 60 patients with lumbar degenerative diseases who needed spinal canal decompression and fusion with internal fixation admitted to Wanzai County Hospital of Traditional Chinese Medicine from November 2019 to May 2021 were selected, they were divided into control group and observation group with 30 cases in each group by random number table method. Both groups received surgical treatment under static aspiration combined with general anesthesia, and the observation group received Nitroglycerin and Urapidil controlled hypotension during the operation. The related indexes of operative effect, operative field quality score and postoperative efficacy were compared between the two groups. Result: The amount of intraoperative blood loss, blood transfusion, urine volume, amount of crystal fluid and amount of colloidal fluid in the observation group were less than those in the control group, and the operation time was shorter than that in the control group (P<0.05). At 1, 2 h of surgery and at the end of surgery, the field quality scores in observation group were lower than those in control group (P<0.05). Conclusion: For patients with lumbar degenerative diseases, the implementation of spinal canal decompression and fusion with internal fixation, and the application of controlled hypotension under general anesthesia during the operation can reduce the amount of intraoperative bleeding, improve the quality of intraoperative vision, and improve the rehabilitation effect.
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Received: 29 November 2022
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