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To analyze the effects of electroacupuncture at different frequencies on the tracheal intubation stress response and the incidence of postoperative nausea and vomiting (PONV) in patients undergoing spinal surgery under general anesthesia.
A total of 168 patients who underwent spinal surgery under general anesthesia at the Seventh People's Hospital of Shanghai from September 2024 to February 2025 were selected. These patients were randomly divided into the control group (Group C), the low-frequency electroacupuncture group (Group L), and the high-frequency electroacupuncture group (Group H) using a random number table, with 56 patients in each group. The changes in hemodynamic parameters and serum stress hormone levels before and after tracheal intubation were compared among the three groups, and the incidence of postoperative nausea and vomiting (PONV) at 6 hours and 24 hours after surgery was recorded.
Compared with group C, the heart rate (HR) and mean arterial pressure (MAP) in group L significantly decreased at T2 to T4 (P <0.05) ; compared with group L, the HR and MAP in group H significantly decreased at T2 to T4 (P < 0.05). Compared with group C, the serum levels of epinephrine (E), norepinephrine (NE), and cortisol (Cor) in group L significantly decreased at T4 and T5 (P <0.05) ; compared with group L, the serum levels of E, NE, and Cor in group H significantly decreased at T4 and T5 (P < 0. 05). The incidence of PONV in group L and group H at 6 hours and 24 hours was significantly lower than that in group C (P <0.05), but there was no statistically significant difference between group L and group H (P >0.05).
EA can effectively reduce the stress response of intubation in general anesthesia patients undergoing spine surgery and reduce the incidence of postoperative PONV. Among them, 100 Hz EA has a better effect in stabilizing hemodynamics and inhibiting the release of stress hormones, while 2 Hz low frequency EA has a comparable antiPONV effect with 100 Hz EA.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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