scholarly journals Effects of Intraoperative Dexamethasone and Ondansetron on Postoperative Nausea and Vomiting in Microvascular Decompression Surgery: A Randomized Controlled Study

2018 ◽  
Vol 2018 ◽  
pp. 1-5 ◽  
Author(s):  
Cattleya Thongrong ◽  
Patitha Chullabodhi ◽  
Pornthep Kasemsiri ◽  
Amnat Kitkhuandee ◽  
Narin Plailaharn ◽  
...  

Background. Postoperative nausea and vomiting (PONV) is a common problem and may lead to catastrophic complications, especially in neurosurgical cases. The aim of this study was to evaluate the effects of dexamethasone and ondansetron for preventing PONV in patients who underwent microvascular decompression (MVD) surgery. Methods. A prospective, double-blinded, randomized control trial was conducted with 54 patients who underwent MVD. Patients were allocated into two groups. The study group (Gr. D) received intraoperative dexamethasone 4 mg iv and ondansetron 4 mg iv, whereas the control group (Gr. N) received placebo (0.9% normal saline 1 ml iv and 0.9% normal saline 2 ml iv). The incidence and severity of PONV were observed at 1, 2, 4, and 24 hr postsurgery. Results. At 1, 2, 4, and 24 hr postsurgery, Gr. D had a lower incidence (7.4%, 11.1%, 29.6%, and 66.7%) and lower severity of PONV than Gr. N (18.5%, 29.6%, 37.0%, and 81.5% at 1, 2, 4, and 24 hr; p>0.05). The requirement for antiemetic drugs was not significantly different between the groups (p>0.05). Conclusion. Administration of dexamethasone and ondansetron 4 mg seemed to decrease the incidence of PONV in the first 24 hours but not significantly. Therefore, further studies are to be carried out by escalating either dexamethasone dose or the dose of ondansetron or both.

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Mine Celik ◽  
Aysenur Dostbil ◽  
Mehmet Aksoy ◽  
Ilker Ince ◽  
Ali Ahiskalioglu ◽  
...  

Background. Postoperative nausea and vomiting (PONV) is one of common complications in patients undergoing laparoscopic cholecystectomy (LC). Aim of this study was to compare the efficacy of subhypnotic (1 mg/kg/h) infusion of propofol with dexamethasone on PONV in patients undergoing LC.Methods. A total of 120 patients were included in this randomized, double-blind, placebo-controlled study. Patients were randomly assigned to 3 groups; patients of group dexamethasone (group D) were administrated 8 mg dexamethasone before induction of anesthesia, patients of group propofol (group P) were infused to subhypnotic (1 mg/kg/h) propofol during operation and patients of group control (group C) were applied infusion of 10% intralipid. The incidence of PONV and needs for rescue analgesic and antiemetic were recorded in the first 24 h postoperatively.Results. In the 0–24 h, the incidence of PONV was significantly lower in the group D and group P compared with the group C (37.5%, 40%, and 72.5%, resp.). There was no significant difference in the incidence of PONV and use of antiemetics and analgesic between group D and group P.Conclusion. We concluded that infusion of propofol 1 mg/kg/h is as effective as dexamethasone for the prevention of PONV during the first 24 hours after anesthesia in patients undergoing LC.


2019 ◽  
Author(s):  
Si-Qi Xu ◽  
Xia Ju ◽  
Sheng-Bin Wang ◽  
Sheng-Hong Hu ◽  
Qing Li ◽  
...  

Abstract Background A few studies have manifested that intravenous (IV) lidocaine or dexmedetomidine decreased the incidence of postoperative nausea and vomiting (PONV). We investigated whether lidocaine plus dexmedetomidine infusion could better reduce the incidence of PONV than placebo after laparoscopic total hysterectomy. Methods This prospective, randomized controlled study enrolled 126 women undergoing elective laparoscopic total hysterectomy with general anesthesia. They divided into the following two groups: patients in the lidocaine combined with dexmedetomidine group (group LD) received lidocaine (1.5 mg/kg loading, 1.5 mg/kg/h infusion) and dexmedetomidine (0.5 μg/kg loading, 0.4 μg/kg/h infusion), respectively. Patients in the control group (group CON) received the equal volume of saline. The primary outcome was the incidence of nausea, vomiting and PONV for the first 48 hours after surgery. The secondary outcomes included intraoperative propofol and remifentanil consumption, postoperative fentanyl requirement, Ramsay sedation score, and the incidence of bradycardia during post-anesthesia care unit (PACU) stay period. Results Data of 59 in CON and 60 in LD groups were analyzed. The incidence of nausea, vomiting, and PONV in group LD during the 0 to 2 hours and 24 to 48 hours after the operation was slightly lower than group CON, but the difference was not statistically significant between the two groups. The incidence of nausea, vomiting, and PONV was much lower in group LD than group CON at 2 to 24 hours after surgery (P<0.05, P<0.01, P<0.01, respectively). The cumulative requirement of fentanyl during the first 48 hours after surgery was significantly reduced in group LD compared to group CON (P<0.01, P<0.01, P<0.05, respectively). Propofol and remifentanil total dose in the intraoperative period was significantly lower in group LD compared with group CON (P<0.01 and P<0.01). However, the level of sedation and incidence of bradycardia during the PACU stay period were markedly increased in group LD compared with group CON (P<0.01 and P<0.01). Conclusion Lidocaine plus dexmedetomidine infusion markedly decreased the occurrence of nausea, vomiting and PONV within the 2 to 24 hours after laparoscopic total hysterectomy with general anesthesia. However, it increased the incidence of bradycardia and the level of sedation during the PACU stay period.


2019 ◽  
Author(s):  
Huai Jin Li ◽  
Shan Liu ◽  
Zhiyu Geng ◽  
Xue Ying Li

Abstract Background: Few studies have investigated the effect of dexmedetomidine on postoperative nausea and vomiting (PONV) in patients underwent gynecological laparoscopic surgery. We investigated if adding dexmedetomidine to a morphine-based patient-controlled analgesia (PCA) could decrease the incidence of PONV in this high-risk patient population. Methods: In this prospective, randomized, double-blind and placebo-controlled study, 122 patients underwent gynecological laparoscopic surgery were assigned into two groups. Patients in the dexmedetomidine group (Group Dex) received a loading dose of dexmedetomidine 0.4μg/kg before the end of surgery, followed by morphine 0.5mg/ml plus dexmedetomidine 1μg/ml for postoperative i.v. PCA. Patients in the control group (Group Ctrl) received normal saline before the end of surgery, followed by morphine 0.5mg/ml alone for postoperative i.v. PCA. PCA pump was programmed as followed: bolus dose 2ml, lockout interval 8 minutes and background infusion at a rate of 1ml/h. The primary outcome was the incidence of nausea and vomiting within the first postoperative 24 hours. Results: Although there were no significant differences in regard to the total incidence of PONV (41.0% vs 52.5%, P=0.204), PONV score, time to first onset of PONV, or the need for rescue antiemetics within the first postoperative 24 hr between the two groups, the incidence of nausea and total PONV during the first 2h period was significantly lower in the Group Dex than in the Group Ctrl (9.8% vs 24.6%, P=0.031 and 0.031, respectively). More patients in Group Dex were over sedated or had bradycardia during the PACU compared with Group Ctrl (P=0.040 and 0.036, respectively). Conclusion: Adding dexmedetomidine to morphine-based PCA with a loading dose might reduce the incidence of early postoperative nausea but not total PONV within 24h after surgery in patients undergoing gynecological laparoscopic surgery.


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