Effect of dexmedetomidine anesthesia on respiratory function in pediatric patients undergoing retinoblastoma resection

Abstract

The aim of this study was to investigate the effect of dexmedetomidine (Dex) on the respiratory function during anesthesia induction in pediatric patients undergoing retinoblastoma (RB) resection. A total of 87 pediatric patients who underwent RB resection in Yidu Central Hospital of Weifang were recruited into this study. General anesthesia was first induced for all patients, of which 45 were randomly assigned to the experimental group and received Dex through an intravenous infusion pump to maintain general anesthesia. The remaining 42 patients were assigned to the control group and received saline through an intravenous infusion pump. Respiratory function and hemodynamic indexes at five time-points, i.e., before anesthesia induction (T0), 5 min after injection of anesthetic agents (T1), before intubation (T2), 15 min after intubation (T3), and 30 min after extubation (T4), were recorded and compared. Incidence of perioperative cardiac and respiratory adverse events was counted in both groups, and post-anesthesia resuscitation was evaluated and compared. Compared with T0, the respiratory rate (R) of the experimental group was lower at T1-T4, but there was no statistical difference (P<0.05). Compared with T0, the control group had a higher R at T2, lower R at T3 and T4 (P<0.05), and there was no significant difference in R between T0 and T1 (P>0.05). At the same time-point, compared with the experimental group, the R was higher at T2, and lower at T3 and T4 in the control group (P<0.05), and no significant difference was found at T1. Blood oxygen saturation (SpO 2 ) of the experimental group was slightly lower than that of T0 at T1-T4 (P>0.05). In the control group, the levels of SpO 2 were significantly lower at T1-T4 than those at T0 (P<0.05). Compared with the experimental group at the same time-point, SpO 2 of the control group at T1-T4 decreased significantly (P<0.05). The heart rate (HR) of the experimental and control groups was lower at T1-T4 than that at T0 (P<0.05). The HR of the experimental group was higher than that of the control group at T1-T4 (P<0.05). Mean arterial pressure (MAP) of the experimental and control groups was lower at T1-T4 than that at T0 (P<0.05). MAP of the control group was higher than that of the experimental group at T2 but lower than that at T0 of the control group. MAP of the control group was lower than that of the experimental group at T1-T4. There was no significant difference in incidence of tachycardia, bradycardia, vomiting, hypoxia and laryngism between the two groups (P>0.05). There was no difference in resuscitation and extubation time between the two groups (P>0.05). Finally, agitation of the control group was more severe than that of the experimental group (P<0.05). Therefore, Dex can improve the respiratory function and hemodynamic stability during anesthesia induction in children with RB resection.

Analysis of Anesthesia Effect of Dexmedetomidine in Clinical Operation of Replantation of Severed Finger

“…The central analgesic impact of dexmedetomidine is only substantial when bupivacaine is added, disputing the central analgesic effect of dexmedetomidine as a cause for prolonging sensory block duration. Dexmedetomidine alone does not cause considerable sensory or motor block, which is similar to what has been reported with clonidine in laboratory and clinical studies [ 14 ].…”

[Retracted] Effects of Dexmedetomidine and Propofol on Postoperative Analgesia and the Cellular Immune Function of Patients Undergoing Radical Gastrectomy for Gastric Cancer

“…It can also effectively fight inflammation and protect the immune function of the body [4]. Dexmedetomidine is a highly selective α2 adrenergic receptor agonist that has good analgesic, sedative, and antianxiety effects; positive effects on postoperative emotional state adjustment and pain management of patients; a small impact on patients' neurological function; and certain anti-inflammatory effects [5,6].…”

“…It can also effectively fight inflammation and protect the immune function of the body [ 4 ]. Dexmedetomidine is a highly selective α 2 adrenergic receptor agonist that has good analgesic, sedative, and antianxiety effects; positive effects on postoperative emotional state adjustment and pain management of patients; a small impact on patients' neurological function; and certain anti-inflammatory effects [ 5 , 6 ]. Through clinical trials, this study further explored the efficacy of the right stent microphone combined with propofol in anesthesia, postoperative analgesia, inflammatory response, and cellular immune function in patients undergoing laparoscopic radical gastrectomy for gastric cancer.…”