Evaluation of the effect of paravertebral block combined with general anesthesia on patients with thoracotomy and its effect on perioperative stress

Objective To evaluate the effect of subtotal paravertebral block combined with general anesthesia on the application of open thoracic surgery and its effect on perioperative stress. Methods From January 2016 to January 2018, 70 cases of patients who underwent thoracotomy were studied. According to the simple random method, patients were divided into control group and observation group. The control group was given general anesthesia, and the observation group was given thoracic paravertebral nerve combined with general anesthesia. The changes of hemodynamics, anesthetic effect, anesthesia recovery, stress response and adverse reaction during anesthesia were compared between the two groups. Results There was no significant difference in heart rate (HR), mean arterial pressure (MAP) and blood oxygen saturation (SaO2) between the two groups at 1 min after induction, 1 min intubation and 1 min after extubation (P>0.05). The anesthetic effect of the patients in the observation group was better than that of the control group (P 0.05). Conclusions Ultrasound paravertebral block combined with general anesthesia can improve the anesthesia effect, and has better analgesic effect, less postoperative stress response, and high safety. Key words: Ultrasonography; Paravertebral nerve block; Anesthesia, general; Thoracic surgical procedures