To explore the application effect of ultrasound-guided transverse abdominal muscle plane block in laparoscopic inguinal hernia surgery.

Retrospective analysis of clinical data of 86 patients with inguinal hernia at Haian Traditional Chinese Medicine Hospital, from April 2019 to April 2022, all of whom underwent laparoscopic hernia repair surgery. They were divided into observation group and control group according to different anesthesia methods, with 43 patients in each group. The control group received routine anesthesia, and the observation group received ultrasound-guided transverse abdominal muscle plane block. The perioperative indexes [operation time, extubation time, recovery time of spontaneous breathing, recovery time, recoveryquality (Steward recovery score), postoperative hospitalization time and postoperative fentanyl dosage] were compared between the two groups. The heart rate, mean pulsatile pressure (MAP) and pulse oxygen saturation (SpO₂) before anesthesia induction (T0), 3 min after anesthesia induction (T1), and at the end of surgery (T2) were compared between the two groups. The visual analogue scale (VAS) score and Ramsay sedation score were compared between the two groups at 1, 6 and 12h after operation, and the adverse reactions of the two groups were compared.

There was no significant difference in operation time between the two groups (P>0.05); The extubation time, recovery time of spontaneous breathing, recovery time, hospitalization time and postoperative fentanyl dosage in the observation group were all lower than those in the control group, and the Steward score was higher than that in the control group, with statistical significance (P<0.05). There was no significant difference between the two groups in heart rate, MAP and SpO₂ levels at T₀ (P>0.05); The levels of heart rate and MAP at T₁ and T₂ in the two groups were lower than those at T₀ in the same group, with statistical significance (P<0.05); The heart rate level at T₂ in both groups was lower than that at T₁ in the same group, and the MAP level was higher than that at T₁ in the same group, with statistical significance (P<0.05); The heart rate level of the observation group at T1 and T2 was lower than that of the control group at T₁ and T₂, and the MAP level was higher than that of the control group at T₁ and T₂, with statistical significance (P<0.05). The VAS score and Ramsay sedation score of the two groups at 6 and 12 h after operation were lower than those of the same group at 1 h after operation, and the difference was statistically significant (P<0.05); The VAS score and Ramsay sedation score of the two groups at 12 h after operation were lower than those of the same group at 6 h after operation (P<0.05). The VAS scores of the observation group at 1, 6 and 12 h after operation were lower than those of the control group, while the Ramsay sedation score were higher than those of the control group, with statistically significant difference (P<0.05). There was no significant difference in the incidence of adverse reactions between the two groups (P>0.05).

Ultrasound-guided transverse abdominal muscl plane block is used in laparoscopic inguinal hernia repair, which has good recovery quality, postoperative analgesia and sedation effect, and high safety for patients.