Association between operative position and postoperative nausea and vomiting in patients undergoing laparoscopic sleeve gastrectomy

BACKGROUND Bariatric surgery is one of the most effective ways to treat morbid obesity,and postoperative nausea and vomiting(PONV)is one of the common complications after bariatric surgery.At present,the mechanism of the high incidence of PONV after weight-loss surgery has not been clearly explained,and this study aims to investigate the effect of surgical position on PONV in patients undergoing bariatric surgery.AIM To explore the effect of the operative position during bariatric surgery on PONV.METHODS Data from obese patients,who underwent laparoscopic sleeve gastrectomy(LSG)in the authors’hospital between June 2020 and February 2022 were divided into 2 groups and retrospectively analyzed.Multivariable logistic regression analysis and the t-test were used to study the influence of operative position on PONV.RESULTS There were 15 cases of PONV in the supine split-leg group(incidence rate,50%)and 11 in the supine group(incidence rate,36.7%)(P=0.297).The mean operative duration in the supine split-leg group was 168.23±46.24 minutes and 140.60±32.256 minutes in the supine group(P<0.05).Multivariate analysis revealed that operative position was not an independent risk factor for PONV(odds ratio=1.192,95%confidence interval:0.376-3.778,P=0.766).CONCLUSION Operative position during LSG may affect PONV;however,the difference in the incidence of PONV was not statistically significant.Operative position should be carefully considered for obese patients before surgery.

Non-pharmacological management for chemotherapy-induced nausea and vomiting in patients with cancer:a scoping review

Objective:This review aimed to map and summarize published studies that tested non-pharmacological management for chemotherapyinduced nausea and vomiting(CINV).Methods:We searched for eligible studies in 5 electronic databases and screened the retrieved studies using the inclusion and exclusion criteria.Data were then collated according to the types of interventions,measurement tool,and outcomes.Results:The search yielded 2343 records,of which 11 were included.Four categories of non-pharmacological CINV management were made;manipulative and body-based therapy(n=5 studies);mind–body therapy(n=3 studies);biologically based practice(n=1 study),and energy therapy(n=2 studies).Seven different scales were used to measure CINV.Nine studies repor ted improvement in CINV.Conclusions:This scoping review demonstrates the breadth of non-pharmacological management to address CINV.Various types of CINV scales were used to measure CINV severity.The management and scale can be utilized to improve nursing care,par ticularly in cancer care.

Effect of music therapy on chemotherapy-induced nausea and vomiting in gastrointestinal cancer:A systematic review and metaanalysis

BACKGROUND Chemotherapy is the primary treatment for patients with advanced gastrointestinal cancer,but it has many adverse reactions,particularly nausea and vomiting.Music therapy can reduce anxiety symptoms,avoid the response to the human body under various stress conditions through psychological adjustment,and improve the adverse reactions of chemotherapy.AIM To investigate the impact of music therapy on relieving gastrointestinal adverse reactions in chemotherapy for patients with digestive tract cancer by metaanalysis.METHODS EMBASE,PubMed,OVID,WoS,CNKI,CBM,and VIP database were all used for searching relevant literature,and the efficacy after treatment was combined for analysis and evaluation.RESULTS This study included seven articles.The results of meta-analysis indicated that music therapy could reduce the nausea symptom score of patients after chemotherapy[mean difference(MD)=-3.15,95%confidence interval(CI):-4.62 to-1.68,Z=-4.20,P<0.0001].Music therapy could reduce the vomiting symptom score of patients after chemotherapy(MD=-2.28,95%CI:-2.46 to-2.11,Z=-25.15,P<0.0001).Furthermore,music therapy could minimize the incidence of grade I and above nausea or vomiting in patients after chemotherapy(odds ratio=0.38,95%CI:0.26-0.56,Z=-4.88,P<0.0001).Meta-regression analysis found that publication year was not a specific factor affecting the combined results.There was no significant publication bias(P>0.05).CONCLUSION Music therapy can significantly improve the scores of nausea and vomiting symptoms in patients with digestive system cancer during chemotherapy and reduce the incidence of grade I and above nausea and vomiting after chemotherapy,making it an effective psychological intervention method worthy of clinical promotion.

Effect of anesthesia induction with butorphanol on postoperative nausea and vomiting:A randomized controlled trial

BACKGROUND Postoperative nausea and vomiting(PONV)are common complications that affect the recovery and well-being of elderly patients undergoing gastrointestinal laparoscopic surgery.AIM To investigate the effect of butorphanol on PONV in this patient population.METHODS A total of 110 elderly patients(≥65 years old)who underwent gastrointestinal laparoscopic surgery were randomly assigned to receive butorphanol(40μg/kg)or sufentanil(0.3μg/kg)during anesthesia induction in a 1:1 ratio.The measured outcomes included the incidence of PONV at 48 h after surgery,intraoperative dose of propofol and remifentanil,Bruggrmann Comfort Scale score in the postanesthesia care unit(PACU),number of compressions for postoperative patientcontrolled intravenous analgesia(PCIA),and time to first flatulence after surgery.RESULTS The results revealed a noteworthy reduction in the occurrence of PONV at 24 h after surgery in the butorphanol group,when compared to the sufentanil group(T1:23.64%vs 5.45%,T2:43.64%vs 20.00%,P<0.05).However,no significant variations were observed between the two groups,in terms of the clinical characteristics,such as the PONV or motion sickness history,intraoperative and postoperative 48-h total infusion volume and hemodynamic parameters,intraoperative dose of propofol and remifentanil,number of postoperative PCIA compressions,time until the first occurrence of postoperative flatulence,and incidence of PONV at 48 h post-surgery(all,P>0.05).Furthermore,patients in the butorphanol group were more comfortable,when compared to patients in the sufentanil group in the PACU.CONCLUSION The present study revealed that butorphanol can be an efficacious substitute for sufentanil during anesthesia induction to diminish PONV within 24 h following gastrointestinal laparoscopic surgery in the elderly,simultaneously improving patient comfort in the PACU.

Patterns of antiemetic prophylaxis for chemotherapy-induced nausea and vomiting in China

Background： Few studies have attempted to evaluate the use of antiemetic therapy for chemotherapyinduced nausea and vomiting （CINV） at a national level in China or to assess how treatment regimens adhere to current guidelines. Methods： We searched the China Health Insurance Research Association （CHIRA） Database to identify patients with cancer who were 〉 18 years old and received either moderately or highly emetogenie chemotherapy （MEC and HEC, respectively） between 2008 and 2012. Patients＇ characteristics as well as usage of specific antiemetic regimens were analyzed using descriptive statistics. Results： Of the 14,548 patients included in the study, 6,477 received HEC while 8,071 were treated with MEC. Approximately 89.9% used antiemetics prophylactically to prevent acute CINV and 71.5% for delayed CINV while 9.0% were prescribed antiemetics as rescue therapy. A significantly lower proportion of patients treated with HEC received prophylactic antiemetic therapy for delayed CINV as compared to those treated with MEC （59.4% vs. 81.3 %; P〈0.001）. The HEC group had a slightly lower proportion of patients using a mixed regimen containing a 5-HT3 antagonist to prevent both acute and delayed CINV than the MEC group （P〈0.012）; however, a higher proportion received a mixed regimen containing eorticosteroids （P≤0.007）. Although more than half of the patients in the HEC group took three antiemeties to prevent acute and delayed CINV, these rates were significantly lower than those of the MEC group （both P〈0.001）. Finally, analysis of the regimens used revealed that there is over-utilization of drugs within the same class of antiemetic. Conclusions： These findings indicate that more attention is needed for treatment of delayed CINV, in terms of both overall use and the components of a typical treatment regimen.

Intraoperative systemic vascular resistance is associated with postoperative nausea and vomiting after laparoscopic hysterectomy

BACKGROUND The incidence of postoperative nausea and vomiting(PONV)in patients undergoing laparoscopic hysterectomy is very high compared with other surgeries,even when many prophylactic measures have been taken.However,the pathogenesis of PONV is multifactorial.Female sex,a history of motion sickness or PONV,nonsmokers,and perioperative opioid use are the most closely related factors.Among the multiple risk factors,suboptimal gastrointestinal(GI)perfusion may be attributed to some cases of PONV,and increased systemic vascular resistance(SVR)may lead to GI ischemia.The hypothesis of this research was that SVR is related to PONV.AIM To investigate the relationship between SVR and PONV in patients undergoing laparoscopic hysterectomy.METHODS A total of 228 patients who underwent elective laparoscopic hysterectomy were included in this prospective observational study.SVR was monitored using a noninvasive hemodynamic monitoring system.Four indices of SVR,the baseline,mean,area under the curve(AUC),and weighted AUC,were used for analysis.The incidence and severity of nausea and vomiting were evaluated while patients were awake and throughout the intervals from 0 to 2 h,2 to 6 h,and 6 to 24 h starting upon arrival at the post-anesthesia care unit.The associations between various SVR indices and PONV were investigated by logistic regression.P<0.05 was considered statistically significant.RESULTS The incidence of PONV in the study was 56.14%(128/228),and PONV tended to appear within 6 h after surgery.Five variables were significant in univariate analyses,however,only SVR mean[odds ratio(OR)=1.015,95%CI:1.005-1.109,P=0.047]and duration of surgery(OR=1.316,95%CI:1.003-2.030,P=0.012)were associated with PONV after logistic regression analysis.Furthermore,patients with high SVR mean were more likely to suffer from PONV after laparoscopic hysterectomy.On average,patients who developed PONV needed more time to tolerate diet and demonstrated poorer sleep quality on the first night after surgery.CONCLUSION In this study,PONV was a common complication after laparoscopic hysterectomy.SVR was associated with PONV,and high SVR mean was associated with a significantly increased risk of PONV.

The selection rules of acupoints and meridians of traditional acupuncture for postoperative nausea and vomiting:a data mining-based literature study

Background:Postoperative nausea and vomiting(PONV)refers to a problem commonly occurring after surgery.Acupuncture is considered a critical complementary alternative therapy for PONV.The acupoints selection critically determines the efficacy of acupuncture,whereas the selection rules remain unclear.The objective of the present study was to delve into the principles of acupoints selection for PONV using data mining technology.Methods:The clinical trials assessing the acupuncture effect for PONV were searched with the use of computer in PubMed,China National Knowledge Infrastructure,and Chinese Biomedical Database;the time span was confined as 2009–2019.The database of acupuncture prescriptions for PONV was built using Excel 2016;the description and association were analyzed by IBM SPSS modeler 18.Result:Eighty-three relevant literatures were screened out.The number of specific acupoints took up 72.5%of all acupoints;specific acupoints exhibited the frequency taking up 91.30%of the total frequency.As revealed from the result,Neiguan(PC 6),Zusanli(ST 36),Hegu(LI 4),and Zhongwan(CV 12)were most frequently applied,suggesting the tightest associations.Most acupoints were taken from the stomach meridian and pericardium meridian.The common acupoints were concentrated in the lower limbs,chest,as well as abdomen.Conclusion:Data mining acts as a feasible method to identify acupoints selection and compatibility characteristics.As suggested from our study,the acupoints selection for PONV prioritizes specific acupoints and related meridians.The selection and combination of acupoints comply with the theory of traditional Chinese medicine.

Comparative study on effects of dexmedetomidine and dexamethasone on the incidence of postoperative nausea and vomiting in patients undergoing laparoscopic surgery

Objective:To compare the safety and efficacy of dexmedetomidine and dexamethasone for the prevention of postoperative nausea and vomiting(PONV)in patients scheduled for laparoscopic surgery.Methods:A total of 86 female patients were prospectively administered dexmedetomidine 1μg/kg i.v.(the group A,n=43),and dexamethasone 8 mg i.v.(the group B,n=43).The two groups were compared in treatment response,hemodynamic changes,and Numerical Analog Scale(NAS).Besides,the relation of PONV with patient baseline characteristics in the perioperative period was determined as well.Results:Patients in group A had lower PONV scores(t=3.1,P<0.002),less needs for rescue anti-emetics(χ2=0.47,P<0.001),and decreased intraoperative heart rate(t=9.72,P<0.001)and mean arterial pressure(t=7.58,P<0.001)compared to that of group B.Group A reported lower NAS than group B(t=2.66,P<0.001).In addition,we found no relationship between PONV score and rescue anti-emetic requirement,age,or body mass index(P=0.96,P=0.60,P=0.28,respectively).Conclusion:Dexmedetomidine could be used as an effective antiemetic in laparoscopic surgeries,with better efficacy than dexamethasone.Dexmedetomidine not only can reduce PONV but also is effective in postoperative analgesia.

Palonosetron versus Ondansetron as Prophylaxis against Postoperative Nausea and Vomiting (PONV) after Laparoscopic Sleeve Gastrectomy: A Randomized Controlled Trial

Introduction: Postoperative nausea and vomiting (PONV) are prevalent symptoms after laparoscopic surgeries with an incidence rate of (54% - 79%) in bariatric procedures. Despite its popularity, limited studies assessed the effect of antiemetics for PONV prophylaxis after laparoscopic sleeve gastrectomy (LSG). The aim of this trail is to compare the effectiveness of a single pre-induction intravenous dose of Palonosetron versus Ondansetron for prophylaxis of PONV, 24 hours after LSG. Subjects and Methods: This prospective randomized controlled double-blind parallel-group study was conducted from May till December 2019. Recruited patients were consented and randomized using a closed envelop method into two groups with fifty patients each. The total number of nausea and vomiting attacks in the 24 hours postoperatively was considered as a primary end point. The secondary end points were the frequency of nausea, retching and vomiting attacks in the 24 hours post-surgery. The severity of nausea was evaluated using a 10 cm visual analogue scale (VAS). Results: This RCT included 100 patients divided into 2 groups of 50 patients each. Patients received either 75 mcg Palonosetron (Group I) or Ondansetron 4 mg (group II). Group I had statistically significant fewer episodes of nausea, retching and vomiting in the first 4 hours (P = 0.022) and from 4 to 12 hours (P = 0.024) but not after 12 hours post LSG. Total episodes of nausea, retching and vomiting in 24 hours postoperative were significantly less in group I (P = 0.021). Conclusion: A single dose of intravenous 75 mcg Palonosetron is superior to Ondansetron 4 mg in preventing PONV for patients after LSG.

Auricular therapy for chemotherapy-induced nausea and vomiting in cancer patients:Perspectives from the traditional zang-fu organs and meridians theory

This paper presents the theoretical background of using auricular therapy(AT)for managing chemotherapy-induced nausea and vomiting(CINV)from the perspectives of traditional zang-fu organs and meridian theory.The zang-fu organs of stomach,spleen and liver play a crucial role in regulating the gastrointestinal functions.The chemotherapeutic agents can significantly impede the gastrointestinal functions and subsequently contribute to various gastrointestinal symptoms including nausea and vomiting.Dysfunctions of the stomach,spleen and liver can correspond to specific auricular acupoints,while by stimulating those acupoints,the chaotic Qi movement can be reversed to its normal status,and the hyperactivities of the gastrointestinal system can also be alleviated to reduce the CINV symptoms.Clinical studies based on such theory have well supported the effects of AT on CINV.However,relationships between the traditional theory and the modern medicine understanding of the CINV mechanisms remain unknown and should be further explored in future research.

Neiguan(PC6) acupoint stimulation for preventing chemotherapy-induced nausea and vomiting: a cost-effective supplement in guideline-inconsistent chemotherapy-induced nausea and vomiting prophylaxis subgroup

OBJECTIVE: To assess the efficacy and safety of Neiguan(PC6) acupoint acustimulation in preventing chemotherapy-induced nausea and vomiting(CINV),especially for patients with guideline-inconsistent CINV prophylaxis(GICP) due to personal reasons METHODS: From January 2021 to December 2021, 373 patients suffered from solid malignancy were recruited according to the inclusion criteria. Complete response(no emesis and no rescue medication use) rate during the overall phase(0-120 h of each chemo-cycle) was the primary assessment of CINV control. The Functional Living Index-Emesis(FLIE) questionnaire was investigated among these patients as a secondary 'quality of life' objective to assess the impact of CINV on patients' daily life by recording score of nausea and vomiting. RESULTS: With acustimulation of Neiguan(PC6) acupuncture point through a portable, noninvasive and user-friendly device, in terms of complete response rate and scores in nausea/vomiting by FLIE questionnaire, patients achieve a better outcome in highly emetogenic chemotherapy(HEC) induced CINV, especially GICP subgroup. Meanwhile, analysis also demonstrated this tendency existed in other patients with HEC/GCCP(guideline consistent CINV prophylaxis) and moderate emetogenic chemotherapy, although the difference was not significant. CONCLUSION: Considering advantages of Neiguan(PC6) acustimulation such as noninvasive, covered by medical insurance and few side effects, we believe it would be an ideal auxiliary tool in CINV control, especially in patients who receive highly emetogenic chemoprotocol and are reluctant to GCCP for economic reasons.

Validation of different personalized risk models of chemotherapy-induced nausea and vomiting:results of a randomized,double-blind,phase III trial of fosaprepitant for cancer patients treated with high-dose cisplatin

Background:Highly emetogenic chemotherapy induces emesis in cancer patients without prophylaxis.The purpose of this study was to evaluate the efficacy and safety of a fosaprepitant-based triple antiemetic regimen for the prevention of chemotherapy-induced nausea and vomiting(CINV)in patients with solid malignant tumors,determine risk factors and externally validate different personalized risk models for CINV.Methods:This phase III trial was designed to test the non-inferiority of fosaprepitant toward aprepitant in cancer patients who were to receive the first cycle of single-day cisplatin chemotherapy.The primary endpoint was complete response(CR)during the overall phase(OP)with a non-inferiority margin of 10.0%.Logistic regression modelswere used to assess the risk factors ofCRand no nausea.To validate the personalized risk models,the accuracy of the risk scoring systems was determined by measuring the specificity,sensitivity and area under the receiver operating characteristic(ROC)curve(AUC),while the predictive accuracy of the nomogram was measured using concordance index(C-index).Results:A total of 720 patients were randomly assigned.CR during the OP in the fosaprepitant group was not inferior to that in the aprepitant group(78.1%vs.77.7%,P=0.765)with a between-group difference of 0.4%(95%CI,-5.7%to 6.6%).Female sex,higher cisplatin dose(≥70 mg/m2),no history of drinking and larger body surface area(BSA)were significantly associated with nausea.The AUC for the acute and delayed CINV risk indexes was 0.68(95%CI:0.66-0.71)and 0.66(95%CI:0.61-0.70),respectively,and the C-index for nomogram CINV prediction was 0.59(95%CI,0.54-0.64).Using appropriate cutoff points,the three models could stratify patients with high-or low-risk CINV.No nausea and CR rate were significantly higher in the low-risk group than in the high-risk group(P<0.001).Conclusions:Fosaprepitant-based triple prophylaxis demonstrated non-inferior control for preventing CINV in patients treated with cisplatin-base chemotherapy.Female cancer patients without a history of alcohol consumption,with larger BSA and received high-dose cisplatin might be more vulnerable to CINV.Three personalized prediction models were well-validated and could be used to optimize antiemetic therapy for individual patients.

A preliminary discussion on rules of clinical acupoint selection of acupuncture for the treatment of chemotherapy-induced nausea and vomiting

Objective To preliminarily investigate the rules of acupoint selection of acupuncture and moxibustion for the treatment of chemotherapy-induced nausea and vomiting by retrospecting pertinent literature from 1986 to 2013. Methods Literature of clinical studies on acupuncture and moxibustion for the treatment of chemotherapy-induced nausea and vomiting published from 1986 to 2013 in CNKI, Wanfang and VlP databases and in PubMed database were retrieved. Data were analyzed statistically via Excel. Results One hundred and nineteen articles retrieved were related to the study. Based on the current literature analysis, meridians selected for acupuncture and moxibustion on chemotherapy-induced nausea and vomiting were mainly the stomach meridian, the pericardium meridian, the conception vessel, the spleen meridian and bladder meridian; point combination was applied more in prescription, accounting for 73.11%, while single point was applied less, only accounting for 26.89%. There were numerous methods for point combinations, but proximal and distal point combination was the most widely used method, accounting for 20.93%. Meanwhile, main acupoints selected were mostly Zusanli （足三里 ST 36）, Neiguan （内关 PC 6）, Zhongwan （中脘CV12）, Gongsun （公孙SP 4） and Taichong （太冲 LR 3） and point combinations were mainly Shenmen （神门 HT 7）, Geshu （膈俞 BL 17）, PishB （脾俞 BL 20）, Weishu （胃俞 BL 21） and Jianli （建里 CV 11）. Conclusion Acupoints selection on acupuncture and moxibustion for chemotherapy-induced nausea and vomiting shows a certain rules that the meridians selected are mainly stomach meridian, pericardium meridian and conception vessel and acupuncture points selected are normally ST 36, PC 6 and CV 12, proximal and distal point combination is applied more, while single point applied less.

Electroacupuncture on PC6 Prevents Opioid-Induced Nausea and Vomiting after Laparoscopic Surgery

Objective： To investigate the treatment time dependence of electroacupuncture （EA） on Neiguan （PC6） for preventing postoperative nausea and vomiting （PONV）. Methods： One hundred and seventy-eight patients, who had received intravenous patient-controlled analgesia （PCA） with Fentanyl, were assigned randomly to three groups using random numbers： a pre-operative EA group （PrEA）, a post-operative EA group （PoEA）, and a non-acupuncture control group （NC）. An anesthetist evaluated the incidence and severity of nausea and vomiting for 48 h after surgery blindly. The main outcomes were severity and freguency of PONV, which were measured with a self-reported questionnaire and a confirmation from the anesthetist. The data were analyzed with ANOVA and Z-test. Results： The incidence of nausea and vomiting was significantly lower in the PrEA group than the NC group during 48 h after surgery （P〈0.01, P〈0.05）. The incidence of vomiting was also significantly lower in the PrEA group than the PoEA group （P〈0.05）. The PoEA subjects evidenced no significant differences compared with the NC subjects in terms of the incidence of nausea and vomiting （P〈0.05）. The severity of nausea was significantly lower in the PrEA group than in the NC and PoEA groups （P〈0.05）. Conclusions： EA on PC6 is effective in the prevention of PONV, and pre-operative acupuncture is more effective than post-operative acupuncture.

Acupoint selection rules in treatment of chemotherapy-induced nausea and vomiting with acupuncture and moxibustion

Objective:To analyze the acupoint selection rules in acupuncture treatment for chemotherapy-induced nausea and vomiting(CINV)in China through data mining technology.Methods:The relevant literature on acupuncture treatment for CINV were searched from SinoMed,China National Knowledge Infrastructure(CNKI),Wanfang,VIP and Pubmed databases from the establishment to January 3,2021 and the worksheet was set up for the information extraction of acupuncture-moxibustion prescriptions.Using IBM SPSS Statistics 25.0 and SPSS Modeler 18.0 software,cluster analysis and association rule analysis were conducted to explore the rules of acupoint selection.Results:A total of 179 articles were eligible,including 206 acupuncture prescriptions and 64 acupoints.The total use frequency of acupoints was 784 times.The acupoints with the highest use frequency were Zúsānlǐ(足三里ST36),Zhōngwǎn(中脘CV12)and Nèiguān(内关PC6).The commonly used meridians included stomach meridian of foot-yangming,conception vessel,pericardium meridian of hand-jueyin and bladder meridian of foot-taiyang.The acupoints located on the chest,the abdomen and the lower limbs were mostly selected.Five-shu points and crossing points were highly involved in terms of the specific points.The most common combination was ST36,CV12 and PC6.Conclusion:In treatment of acupuncture for CINV,the acupoints were generally selected from stomach meridian of foot-yangming,conception vessel,pericardium meridian of hand-jueyin.Front-mu points on the chest and the abdomen,the he-sea points and lower he-sea points in the lower limbs are commonly used.The core acupoint prescription of acupuncture for CINV included ST36,CV12 and PC6.

Effect of wrist-ankle acupuncture on postoperative nausea and vomiting undergoing radiofrequency ablation in thyroid nodule:A randomized controlled trial

Objective:To observe the influence of wrist-ankle acupuncture(WAA)on postoperative nausea and vomiting(PONV)undergoing radiofrequency ablation(RFA)in thyroid nodule and its analgesic effect.Methods:A total of 66 patients with thyroid nodule and undergoing RFA were randomized into a WAA group and a sham-acupuncture(SA)group,33 cases in each one.Acupuncture was exerted after the patients entering operation room.In the WAA group,WAA was applied on the bilateral Upper 1,2 and 3 areas.In the SA group,the sham-acupuncture was given on the same areas.In 30 min after needle insertion,the routine RFA started in the patients of the two groups.All the needles were removed when the operation was finished.The proportion of intraoperative sufentanil supplementation,the incidence of24 h PONV and the proportion of intraoperative intravenous injection of urapidil were recorded in the patients of the two groups.Results:In the WAA group,sufentanil was supplemented by 12.90%,obviously less than 36.36%in the SA group.The incidence of 24 h PONV was 9.68%in the WAA group,remarkably lower than 27.27%in the SA group,indicating statistical significances(both P<0.05).The intravenous injection of urapidil was not applied during operation in the two groups,without statistical difference between the groups(P>0.05).Conclusion:Wrist-ankle acupuncture reduces the intraoperative demand of sufentanil in radiofrequency ablation of thyroid nodule and this therapy is preventive for PONV.

Evaluation of Transcutaneous Electroacupoint Stimulation with the Train-of-four Mode for Preventing Nausea and Vomiting after Laparoscopic Cholecystectomy

Objective： To evaluate the efficacy of transcutaneous electroacupoint stimulation with a train-of-four （TOF） mode for the prevention of postoperative nausea and vomiting （PONV） in the patients undergoing laparoscopic cholecystectomy. Methods： Ninety-six ASA Grade Ⅰ-Ⅱ patients scheduled for laparoscopic cholecystectomy were randomized into Neiguan （P6） electroacupoint stimulation group （treated group） and a placebo control group （placement of electrodes without electroacupoint stimulation）. The anesthetic regimen was standardized by needling at Neiguan on the left side and connecting the TOF peripheral nerve stimulator. The incidence of nausea, vomiting, severity, antiemetic dosage and the degree of pain were assessed at 0, 60, 120 min, and 24 h after surgery. Results： The incidence of nausea and vomiting, the dose of antiemetics and the occurrence of severe nausea were all significantly lower in the treated group compared with the control group and the score for pain was obviously reduced in patients of the treated group at 24 h post-operation （P〈0.05 or P〈0.01）. Conclusion： Transcutaneous electroacupoint stimulation at P6 with the TOF mode could reduce the incidence and severity of nausea and vomiting with analgesic effects.

Effect of Transcutaneous Electrical Acupoint Stimulation on Nausea and Vomiting Induced by Patient Controlled Intravenous Analgesia with Tramadol

Objective： To observe the effect of transcutaneous electrical acupoint stimulation （TEAS） on nausea and vomiting （N＆V） induced by patient controlled intravenous analgesia （PCIA） with Tramadol. Methods： Sixty patients who were ready to receive scheduled operation for tumor in the head-neck region and post-operation PCIA, aged 39-65 years, with the physique grades Ⅰ -Ⅱ of ASA, were randomized into two groups, A and B, 30 in each group. The pre-operation medication, induction of analgesia and continuous anesthesia used in the two groups were the same. TEAS on bilateral Hegu （LI4） and Neiguan （PC6） points was intermittently applied to the patients in group A starting from 30 min before analgesia induction to 24 h after operation, and the incidence and score of nausea and vomiting, antiemetic used, visual analogue scores （VAS）, and PCIA pressing times in 4 time segments （0-4, 4-8, 8-12 and 12-24 h after the operation was finished） were determined. The same management was applied to patients in Group B, with sham TEAS for control. Results： The incidence and degree of N＆V, as well as the number of patients who needed remedial antiemetic in Group A were less than those in Group B. The VAS score and PCIA pressing time were lower in Group A than those in Group B in the corresponding time segments respectively. Conclusion： TEAS could prevent N＆V induced by PCIA with Tramadol.

Prevention of nausea,vomiting and reflux aspiration in two cases of painless hysteroscopy

Objective:To investigate the prevention and management of perioperative nausea and vomiting and reflux aspiration in painless hysteroscopy patients.Methods:The clinical datum of one patient with reflux and postoperative vomiting and another one with a history of multiple postoperative nausea and vomiting during painless hysteroscopy were retrospectively analyzed.Results:In case 1,despite the occurrence of reflux,no significant aspiration or other serious consequences occurred through positive attraction,ondansetron,dexamethasone,droperidol and other drugs and candy treatment,then nausea and vomiting gradually eased.In case 2,due to the reduction of preoperative dosage of sufentanil,prophylactic application of ondansetron,psychological intervention and postoperative candy,no nausea and vomiting occurred during the painless hysteroscopy.The patient recovered quickly with high satisfaction.Conclusion:Patients with a high risk of nausea and vomiting may be ameliorated by positive psychological and drug intervention.Even if patients have intraoperative reflux and postoperative nausea and vomiting,it can be relieved by psychological and drug treatment,and the occurrence of serious complications such as aspiration can be prevented.

A global review of acupuncture and moxibustion recommendations in guidelines/expert consensus for chemotherapy-and/or radiotherapy-induced nausea and/or vomiting

Objective:To summarize and analyze the recommendations of acupuncture and moxibustion in the global guidelines/expert consensus of chemotherapy-and/or radiotherapy-induced nausea and/or vomiting,providing a basis for the development of clinical practice guidelines on acupuncture and moxibustion for chemotherapy-and/or radiotherapy-induced nausea and/or vomiting.Methods:We systematically searched 7 comprehensive databases,7 guideline libraries and 4 websites of societies/associations.The retrieval period was from the inception to April 1,2023.Two researchers independently screened the literature,extracted data,and used the Scientific,Transparent,and Applicable Rankings(STAR)tool to evaluate the quality of guidelines/expert consensus that contained acupuncture and moxibustion recommendations,and analyzed acupuncture and moxibustion recommendations in guidelines/expert consensus and their evidence base.Results:A total of 56 guidelines/expert consensus related to the prevention and treatment of chemotherapy-and/or radiotherapy-induced nausea and/or vomiting were included,and 22 guidelines/expert consensus contained acupuncture and moxibustion recommendations,with a total of 34 recommendations on acupuncture and moxibustion(27 supports,4 neutrals,3 objections).The STAR evaluation(excluding 1 patient version of guideline)showed that none of the guidelines/expert consensus was with high quality,95.24%(20/21)with medium quality,and 4.76%(1/21)with low quality.Although there were many recommendations of acupuncture and moxibustion in the existing guidelines/expert consensus,there was great heterogeneity among the acupuncture and moxibustion treatment regimens.Moreover,most of the guidelines/expert consensus did not describe the details of acupuncture and moxibustion treatment regimens,such as acupuncture and moxibustion manipulation,acupoint selection,course and timing of treatment,which is difficult to guide the clinical practice of acupuncture and moxibustion.Conclusion:Developing clinical practice guidelines of acupuncture and moxibustion for chemotherapyand/or radiotherapy-induced nausea and/or vomiting according to the items of the STAR tool was urgent,so as to clarify the details of acupuncture and moxibustion regimens and provide standardized treatment regimens to guide the clinical practice of acupuncture and moxibustion.