Association between intraoperative hypotension and postoperative nausea and vomiting: a retrospective analysis of 247 thyroidectomy cases

Abstract Background: Postoperative nausea and vomiting (PONV) are major complications after general anesthesia. Although various pathways are involved in triggering PONV, hypotension plays an important role. We hypothesized that intraoperative hypotension during general anesthesia might be responsible for the incidence of PONV. Methods: We retrospectively investigated patients who underwent thyroidectomy. The initial blood pressure measured before induction of anesthesia was used as the baseline value. The systolic blood pressure measured during the operation from the start to the end of anesthesia was extracted from anesthetic records. The time integral value when the measured systolic blood pressure fell below the baseline value was calculated as area under the curve (AUC) of s100%. Results: There were 247 eligible cases. Eighty-eight patients (35.6%) had PONV. There was no difference in patient background between the patients with or without PONV. Univariate analysis showed that the total intravenous anesthesia (TIVA) (p = 0.02), smoking history (p = 0.02), and AUC-s100% (p = 0.006) were significantly associated with PONV. Multiple logistic regression analysis revealed that TIVA (OR: 0.54, 95% CI: 0.29-0.99), smoking history (OR: 0.60, 95% CI: 0.37-0.96), and AUC-s100% (OR: 1.006, 95% CI: 1.0-1.01) were significantly associated with PONV. Conclusion: Intraoperative hypotension evaluated by AUC-s100% was related to PONV in thyroidectomy.

Comparison Of Oral Midazolam,Oral Dexmedetomidine And Oral Midazolam Ketamine Combination For Premedication In Paediatric Surgery

Background: Children especially age group <10years undergoing operation may experience preoperative anxiety & may be uncooperative. This uncooperative behavior of children may be observed at the time of separation from parents, venipuncture or mask application. Untreated anxiety may lead to difficult induction, greater rescue analgesic needs, emergence delirium (ED), behavioural & postoperative psychological effects. An atraumatic premedication, calm separation from parents can minimize these problems and a smooth induction of anaesthesia can be achieved.Method : Prospective randomized double blind active controlled study was conducted in Government medical college & hospital, Aurangabad from 2018 to 2020 after Institution Ethics Committee approval. 75 ASA I & II subjects aged between 2 to 5 year weighing less than 15 Kg posted for elective paediatric surgery under general anaesthesia at tertiary care centre were selected. They were randomly allocated into 3 groups Group M ,Group M K & Group D with 25 subjects in each group using computer generated randomization list. Oral premedication was given in each group 30 minutes before surgery. Baseline heart rate, SBP and RR measured before administering premedication and at 10 minutes intervals up to 30 to 45 minutes after premedication. Sedation & anxiolysis score at induction[S1] was significant higher inResults: Group M K& Group D [p Value <0.05] compared to Group M. Sedation at the time of separation from parents [S2] was better in Group M K & Group D compared to Group M[p Value <0.05]. Sedation during Mask Acceptance[S3] was better in Group M K & Group D compared to Group M[p Value <0.05].Wake up Behaviour [when the patient recovers from anaesthesia at end of surgery [S4] ] was assessed & Subjects were more Sedated[post anaesthesia] in Group D when compared to Group m & Group M K[p Value <0.05]. Time taken for maximum change in vital parameters was more in Group D followed by Group M K and Group M respectively p Value 0.001].There was significant changes in Vital parameters in Group D compared to Group M & Group M K .Bradycardia p Value 0.00044] & Hypotension [p Value 0.01]was more significant in Group D when compared to Group MK &Group M Oral Midazolam (0.2mg/kg)Conclusion: & Ketamine (2mg/kg) combination & oral Dexmedetomidine (0.5 g/kg) both provide satisfactory sedation levels & offers significant ease of separation from parents with satisfactory mask acceptance in children<10 years compared to oral Midazolam alone.

Efficacy of Methylprednisolone and Etoricoxib Combination to attenuate Post-operative Pain and Nausea/Vomiting in Laparoscopic Surgeries

Background and Aims:Pain and PONV (postopera?ve nausea and vomi?ng) are common complaints in the period following surgery. A mul?modal approach targe?ng the reduc?on of postopera?ve pain with an opioid-sparing analgesic along with an an?eme?c medica?on would minimize opioid consump?on and its associated side effects. We evaluated the efficacy of methylprednisolone 125 mg IV taken along with oral 120 mg etoricoxib on postopera?ve pain and PONV in pa?ents undergoing laparoscopic surgeries Material and methods:A prospec?ve, randomized, double-blind study was conducted on 70 pa?ents aged between 18 and 60 years with ASA grade 1 and 2 posted for elec?ve laparoscopic surgeries. The test group was given a combina?on of methylprednisolone 125mgIV (given just before induc?on)& etoricoxib120mg oral (given 1 hr before surgery). (Group A, n=35) while control group received normal saline IV and a placebo per oral(Group B, n=35). Dura?on and quality of analgesia was assessed by visual analogue scale (VAS) score at 2,4,6,8,10,12,16,20 and 24hr as primary objec?ve. Total dose of rescue analgesic(injec?on Fentanyl 50 mcg) in first 24 hours, peri-opera?ve hemodynamic change and post op nausea vomi?ng (PONV) were observed as secondary objec?ve. Result:Demographic profiles were comparable. Dura?on of postopera?ve analgesia was significantly prolonged(p<0.05) in Group A(7.57±1.04hrs) as compared to Group B(3.05±0.5hrs). Group A showed a significant reduc?on in postopera?ve fentanyl consump?on in the form of rescue analgesic(p<0.05). Group A also showed significant reduc?on in the incidence of PONV(p<0.05). Conclusion:We conclude that single-dose administra?on of methylprednisolone IV along with oral etoricoxib has be?er analgesic efficacy in comparison to placebo for pa?ents undergoing laparoscopic surgeries.

The effect of prophylactic rewarming on postoperative nausea and vomiting among patients undergoing laparoscopic hysterectomy: a prospective randomized clinical study

ABSTRACT BACKGROUND: Postoperative nausea and vomiting (PONV) is a common complication from general anesthesia that impacts on postoperative recovery. OBJECTIVE: To evaluate prophylactic rewarming following general anesthesia, so as to decrease the incidence of PONV among patients undergoing laparoscopic hysterectomy. DESIGN AND SETTING: Prospective randomized clinical study at a hospital in China. METHODS: Sixty-two patients were randomly assigned into two groups. The forced air warming (FAW) group received pre-warmed Ringer's solution with FAW until the end of surgery. The control group received Ringer's solution without FAW. The pre-warmed Ringer's solution was stored in a cabinet set at 40 °C. The FAW tube was placed beside the patient's shoulder with a temperature of 43 °C. RESULTS: Sixty patients completed the study. The FAW group showed significant differences versus the controls regarding temperature. At 6, 24 and 48 hours postoperatively, the incidences of PONV were 53.3%, 6.7% and 3.3% in the FAW group versus 63.3%, 30% and 3.3% in the controls. VAS scores were significantly lower in the FAW group than in the controls at 24 hours (P= 0.035). Forty-item questionnaire total scores in the FAW group were significantly higher than in the controls. The physical independence and pain scores at 24 hours and emotional support and pain scores at 48 hours in the FAW group were higher than in the controls (P < 0.05). There was no difference in hemodynamics or demographics between the two groups (P > 0.05). CONCLUSIONS: Prophylactic rewarming relieved PONV and improved the quality of postoperative recovery. CHINESE CLINICAL TRIAL REGISTER (ChiCTR): ChiCTR-IOR-17012901.

Effect of acupuncture on the prevention of nausea and vomiting after laparoscopic cholecystectomy: a randomized clinical trial / Efeitos da acupuntura para a prevenção de náuseas e vômitos após colecistectomia laparoscópica: estudo clínico randomizado

Abstract Background and objectives: Postoperative nausea and vomiting (PONV) is a common and undesirable complication observed after laparoscopic cholecystectomy (LC). We investigated the effects of auriculoacupuncture (AA) on the prevention of postoperative nausea and vomiting in the immediate postoperative period of uncomplicated laparoscopic cholecystectomy. Methods: Sixty-eight patients were randomly divided into two groups, auriculoacupuncture (n = 35) and control (n = 33), and then they were evaluated prospectively. The needle was placed before anaesthesia induction and remained for 20 minutes. Nausea intensity was evaluated using an analogic visual scale and PONV events were registered immediately after anaesthesia care unit admission and in the second, fourth and sixth hours after the surgery. Results: The auriculoacupuncture group had a significantly smaller incidence of nausea and vomiting than the control group throughout the whole postoperative period (16/35 vs. 27/33, p= 0.03 and 4/35 vs. 15/33, p= 0.005, respectively); the AA group had fewer nausea events 2 h (p= 0.03) and 6 h (p= 0.001) after surgery and fewer vomiting events 2 h (p= 0.01) and 6 h (p= 0.02) after surgery. Conclusions: Auriculoacupuncture can partially prevent postoperative nausea and vomiting when compared to metoclopramide alone after uncomplicated laparoscopic cholecystectomy. Auriculoacupuncture can be recommended as an adjuvant therapy for postoperative nausea and vomiting prevention in selected patients.

Resumo Justificativa e objetivos: Náuseas e vômitos são complicações comuns e indesejáveis no pós-operatório de colecistectomia laparoscópica (CL). Nós investigamos os efeitos da auriculoacupuntura (AA) para a prevenção de náuseas e vômitos no período pós-operatório (NVPO) imediato da CL não complicada. Métodos: 68 pacientes foram aleatoriamente divididos em dois grupos, auriculoacupuntura (n = 35) e controle (n = 33), e foram avaliados prospectivamente. A agulha foi aplicada antes da indução anestésica e permaneceu no lugar por 20 minutos. A intensidade da náusea foi avaliada mediante escala visual analógica e episódios de NVPO foram registrados imediatamente após a admissão na unidade de recuperação anestésica e duas, quatro e seis horas após a cirurgia. Resultados: O grupo AA apresentou significativamente menos episódios de NVPO do que o grupo controle durante todo o período pós-operatório (16/35 vs. 27/33, p = 0,03 e 4/35 vs. 15/33, p = 0,005, respectivamente). O grupo auriculoacupuntura apresentou episódios de náuseas menos intensos às 2 horas (p = 0,03) e 6 horas (p = 0,001) após a cirurgia e menos episódios de vômitos 2 horas (p = 0,01) e 6 horas (p = 0,02) após a cirurgia. Conclusão: A auriculoacupuntura aliviou náuseas e vômitos no pós-operatório em número significante de pacientes, mas não foi capaz de prevenir náuseas e vômitos no pós-operatório em todos os pacientes. Ela pode ser recomendada como terapia adjuvante para prevenção de náuseas e vômitos no pós-operatório no pós-operatório de colecistectomia laparoscópica em pacientes selecionados.

Comparison of post-operative nausea and vomiting with intravenous versus inhalational anesthesia in laparotomic abdominal surgery: a randomized clinical trial / Comparação entre anestesia intravenosa e inalatória na náusea e vômito pós-operatórios em laparotomia: estudo clínico randomizado

Abstract Background: Postoperative Nausea and Vomiting (PONV) is a multifactorial surgical complication with an unclear underlying cause. Anesthetic methods, patients' characteristics and the type of surgery are considered as factors affecting PONV. This study was designed to compare the effect of inhalational and intravenous anesthesia in abdominal surgery on the incidence and severity of PONV. Methods: A single-blinded prospective randomized clinical trial on 105 patients aged 18 − 65 years was carried out. Patients were divided into two groups of Total Intravenous Anesthesia (TIVA) and inhalational anesthesia. The incidence and the severity of PONV were examined at 0, 2, 6, 12 and 24 hours after the surgery. The use of a rescue antiemetic was also evaluated. Results: 50.9% of the patients in the inhalation group and 17.3% of the patients in the intravenous group developed PONV (p < 0.001). The incidence of vomiting was reported in 11.3% of the inhalational group and 3.8% of the TIVA group (p = 0.15). 24.5% of patients in the inhalation group and 9.6% of patients in the intravenous group needed an antiemetic medication (p = 0.043). Conclusion: The incidence of postoperative nausea and vomiting and the need for administration of an antiemetic rescue drug and the severity of nausea in patients were significantly lower in the TIVA group.

Resumo Justificativa: Náusea e Vômito no Pós-Operatório (NVPO) é uma complicação multifatorial com etiologia não esclarecida. A técnica anestésica, as características dos pacientes e o tipo de cirurgia são considerados fatores que afetam a NVPO. O presente estudo foi desenhado para comparar o efeito da anestesia inalatória com anestesia intravenosa na incidência e gravidade de NVPO na cirurgia abdominal. Método: Foi realizado estudo clínico mono-cego prospectivo randomizado com 105 pacientes com idades de 18 − 65 anos. Os pacientes foram divididos em dois grupos, Anestesia Total Intravenosa (TIVA) e anestesia inalatória. A incidência e gravidade de NVPO foram avaliadas em cinco momentos: 0, 2, 6, 12 e 24 horas pós-cirurgia. O uso de antiemético de resgate também foi avaliado. Resultados: NVPO ocorreu em 50,9% dos pacientes no grupo inalatória e 17,3% dos pacientes no grupo TIVA (p< 0,001). A incidência de vômitos relatados foi 11,3% no grupo Inalatória e 3,8% no grupo TIVA (p = 0,15). Necessitaram de medicação antiemética 24,5% dos pacientes no grupo Inalatória e 9,6% dos pacientes no grupo TIVA (p = 0.043). Conclusão: A incidência de náusea e vômito no pós-operatório, a necessidade de administração de droga antiemética de resgate e a gravidade da náusea foram significantemente mais baixas no grupo TIVA.

A Comparison of Ondansetron, Palonosetron and Granisetron for Prevention of Post-Operative Nausea and Vomiting after Laparoscopic Surgeries.

Post-Operative Nausea and Vomiting (PONV) “the little big problem” after surgery/anaesthesia is a common side-effect which compromises the quality of care, delays discharge and thereby delays resumption of activities of daily living. A number of pharmacological agents (antihistamines, butyrophenones, dopamine receptor antagonists) have been used, and the 5‑hydroxytryptamine type 3 receptor antagonists have been found to be effective in prevention and treatment of PONV. Thus, we compared the prophylactic effects of intravenously administered ondansetron, palonosetron, and granisetron in prevention of postoperative nausea and vomiting in patients undergoing laparoscopic surgery under general anaesthesia. METHODSThis prospective, double blind study, comprising of 135 patients of ASA physical status I and II of either gender, was carried out after approval was obtained from the Institutional Ethical and Scientific Committee. Patients were randomized into three equal groups. Group P received inj. palonosetron (0.075 mg), group O received inj. ondansetron (8 mg), and group G received inj. granisetron (2.5 mg) intravenously five minutes before induction of anaesthesia. The episodes of postoperative nausea and vomiting, severity of nausea, need for rescue antiemetic, side effects and patient satisfaction were observed in the study groups for 24 hours in the post-operative period. At the end of study, results were compiled, and statistical analysis was done using ANOVA, chi‑square test, and Kruskal Wallis Test. Value of p < 0.05 was considered significant.RESULTSThe incidence of PONV was significantly less in the palonosetron group (95.6%) as compared to the ondansetron group (80%) and granisetron group (73.3%), with a lesser need for rescue antiemetic in the palonosetron group. All the three study groups did not have significant adverse effects reflecting that all the three drugs were well-tolerated. Patient satisfaction score was also more with palonosetron

Gabapentin Versus Dexamethasone for Prophylaxis of Post-Operative Nausea and Vomiting in Patients Undergoing Laparoscopic Cholecystectomy

Post-operative nausea and vomiting (PONV) is one of the commonest complications in anaesthesia accounting for 20-30% cases but number may rise to 70% in laparoscopic surgeries.1,2 Laparoscopic cholecystectomy is carried out as day care surgery but PONV prolongs hospital stay. Several studies have documented role of Gabapentin and Dexamethasone for prophylaxis of PONV but none has compared them for the same. This study aimed at comparing the efficacy of oral gabapentin and dexamethasone for prophylaxis of PONV and need for rescue anti-emetics in first 24 hours. Methods: This prospective, single blind randomized trial enrolled 100 ASA physical status I and II patients assigned into two groups: Group G (Gabapentin group, n=50) received 600 mg of Gabapentin oral formulation with sip of water on the morning of surgery whereas Group D (Dexamethasone group, n=50) received 8 mg of Dexamethasone oral formulation with sip of water on the morning of surgery. Following parameters were noted: time to first rescue anti-emetic drug (Injection Ondansetron), total number of rescue anti-emetic doses, complications if any. Results: The two groups i.e the Gabapentin group and the dexamethasone group were comparable with regards to the demographic profile (age, weight and sex). However the mean duration of surgery was more in Gabapentin group compared to Dexamethasone group, the difference being statistically significant (P< 0.05). Time between extubation and first rescue antiemetic was also comparable in the two groups the results being statistically non significant (P > 0.05). The mean of total number of rescue antiemetics in 24 hours as well as grading of Wilsons score for PONV in the two groups was also statistically non significant (P > 0.05). Conclusion: Both the drugs gabapentin and dexamethasone are equally effective in preventing postoperative nausea and vomiting.

A comparative study of granisetrone, dexamethasone and combination of granisetrone-dexamethasone as prophylaxis for postoperative nausea vomiting during laparoscopic surgeries

Background: In laparoscopic surgeries, insufflation with carbon dioxide triggers vagal afferents on the bowel and peritoneum which induces emesis by activating the vomiting center. It is hypothesized that combined antiemetics with different sites of activity would be more effective than one drug alone for the prophylaxis against PONV. So, the present study was planned to compare the efficacy of granisetron, dexamethasone and combination of granisetron with dexamethasone to prevent PONV.Methods: This randomized prospective double-blind study was performed on 120 patients, aged between 18 and 58 years of ASA physical status I and II of either sex undergoing laparoscopic surgeries under general anesthesia. Patients were randomized in three groups, group I (granisetrone 2 mg I.V.), group II (dexamethasone) 8 mg I.V., group III (granisetrone+dexamethasone) 2 mg+8 mg I.V. with 40 patients in each group. Complete response, incidence of nausea, vomiting, and rescue antiemetic were recorded at specified intervals.Results: A complete response (defined as no PONV and no need for another rescue antiemetic) was achieved in 75% of the patients given granisetron, 70% in dexamethasone and in 92.5% of the patients given granisetron plus dexamethasone (P <0.05). The overall cumulative incidences (0-24 hours) of PONV were 10 (25%) in the granisetron, 12 (30%) in the dexamethasone and 3 (7.5%) in the combination group. No difference in adverse events were observed in any of the groups.Conclusions: The prophylactic therapy of granisetron 2 mg plus dexamethasone 8 mg just before induction of anaesthesia is significantly effective in prevention of PONV in patients undergoing laparoscopic surgeries.

The curative effect observation of different frequency of TEAS combined with wristband pressing on Neiguan (PC 6) for nausea and vomiting after laparoscopic cholecystectomy / 中国针灸

OBJECTIVE@#To compare the effects of different frequency of transcutaneous electrical acupoint stimulation (TEAS) combined with wristband pressing on Neiguan (PC 6) for nausea and vomiting (PONV) after laparoscopic cholecystectomy, and optimize the TEAS frequency selection for treatment of PONV.@*METHODS@#Eighty patients undergoing laparoscopic cholecystectomy were randomly divided into a postoperative routine care group, a 2 Hz TEAS combined with wristband pressing group (2 Hz TEAS group), a 100 Hz TEAS combined with combined with wristband pressing group (100 Hz TEAS group) and a 2 Hz/100 Hz TEAS wristband pressing group (2 Hz/100 Hz TEAS group), 20 cases in each group (1 patient dropped off in the postoperative routine care group). All the four groups underwent laparoscopic cholecystectomy, and routine nursing was given after the operation. In the postoperative routine nursing group，only routine nursing was received. In the other three groups, 2 Hz TEAS combined with wristband pressing, 100 Hz TEAS combined with wristband pressing, 2 Hz/100 Hz TEAS combined with wristband pressing to simulate Neiguan (PC 6) were treated on the basis of postoperative routine care after surgery. The treatment was given for 30 min each time for a total of 4 treatments. The incidence of PONV in each group was observed at 0-2 h, 2-8 h, 8-24 h and 24-48 h after operation, and the severity of PONV and postoperative pain were evaluated.@*RESULTS@#Compared with the postoperative routine care group, the incidence and severity of PONV in the four time periods after surgery were significantly reduced in the 2 Hz/100 Hz TEAS group (all <0.05), the incidence and severity of PONV in patients at 2 h and 2-8 h after surgery were significantly reduced in the 2Hz TEAS group and the 100 Hz TEAS group (all <0.05), the postoperative pain at 8 h and 24 h after surgery was alleviated in the 100 Hz TEAS group and the 2 Hz/100 Hz TEAS group (all <0.05).@*CONCLUSION@#Different frequency of TEAS combined with wristband pressing to stimulating Neiguan (PC 6) have certain therapeutic effects on PONV in patients undergoing laparoscopic cholecystectomy. 2 Hz/100 Hz TEAS combined with wristband pressing at Neiguan (PC 6) is more effective in PONV. 2 Hz/100 Hz TEAS and 100 Hz TEAS combined with wristband pressing at Neiguan (PC 6) have postoperative analgesic effect, and 2 Hz/100 Hz TEAS has the better analgesic effect.

Comparison of induction and recovery characteristics of Propofol and Sevoflurane in daycare adult tonsillectomies

Background: Type2 diabetes mellitus (T2DM) is a highly inheritable disease. Transcription factor 7- like 2 (TCF7L2) gene regulates the expression of glucagon-like peptide 1 (GLP-1) in L cells of small intestine. GLP1 plays a critical role in blood glucose homeostasis by stimulating postprandial insulin secretion and increasing insulin sensitivity. Aim of the study: TCF7L2 gene variants may affect the susceptibility to Type 2 diabetes by altering GLP-1 levels. Materials and methods: This case-control study was conducted with 90 newly diagnosed patients with Type2 diabetes mellitus as cases and 90 age and sex-matched healthy volunteers as controls. TCF7L2 rs7903146 genotyping was done and we also estimated Fasting and postprandial GLP -1 level, Fasting and Postprandial insulin level and calculated HOMA-IR in both cases and controls. Results: Out study showed that T+ genotype, lower fasting GLP-1 level and lower postprandial GLP1 levels were more observed among cases as compared to controls. Low mean GLP 1 activity, high Mean HOMA-IR, low postprandial insulin, low percentage rise in insulin were observed among T+ genotype than among T- genotypic individuals. Conclusion: Hence, the study concludes that T+ genotype causes a decrease in GLP-1 levels, which in turn by decreasing postprandial insulin levels and by increasing insulin resistance increases the risk of Type2 diabetes.

The effect of taking Preoperative oral clear water 2 hours before surgery on anesthesia induction and postoperative nausea and vomiting during pediatric interventional heart surgery / 实用医学杂志

Objective To investigate the effect of different forbidden drink schemes on anesthesia induction and postoperative nausea and vomiting during pediatric interventional heart surgery.Methods One hundred and twenty pediatric patients underwent cardiac interventional procedures under general anesthesia were randomized into group A,B and C,with 40 patients in each group.Patients in cach group were fasted for 8 h preoperatively.Water was prohibited for patients in group A for 6 h preoperatively.Patients in groups B and C orally took 10％ glucose solution and a multivitamin drink (Outfast) at 2 h preoperatively,respectively.Nausea and vomiting after anesthesia induction were recorded for 24 h postoperatively.Results The sedation and mask acceptance scores were significantly higher in group B and C than those in group A,and were significantly higher in group C than those in group B (P ＜ 0.05,resoectively).Following anesthesia induction,MAP was significantly higher in group B and C than that in group A (P ＜ 0.05,resoectively).Both the severity and incidence of postoperative nausea and vomiting were higher in group B and C than those in group A,and was lower in group C than that in group B (P ＜ 0.05,resoectively).Conclusions Taking clear water orally 2 hours before surgery can decrease the restlessness of pediatric interventional heart surgery during anesthesia induction period,with stable smooth hemodynamics,reducing the degree of PONV.

Analysis of Credibility and Validity of Chinese Medical Constitution Questionnaire in Risk Evaluation of Postoperative Nausea and Vomiting Patients / 广州中医药大学学报

Objective To preliminarily analyze the credibility and validity of Chinese Medical Constitution Questionnaire(CMCQ).Methods CMCQ was used to investigate the distribution of Chinese medical constitution types of 450 women inpatients with postoperative nausea and vomiting (PONV) after gynecologic laparoscopic surgery from March to October of 2013.Credibility and validity were analyzed by Cronbach's α coefficient and factor analysis.Results Mixed constitution was identified in 184 (40.9％) patients.Cronbach's α coefficient of two dimensions (yang deficiency and qi stagnation) of CMCQ was proper,being 0.815 and 0.803 respectirely,while that of the dimension of harmony type was the lowest (0.514).The total variance explained by 9 common factors extracted from the results of factor analysis was only 48.5％.Conclusion CMCQ may need further revision based on the results of clinical application.

Comparison of the efficacy of ramosetron and palonosetron for prevention of postoperative nausea and vomiting in patients undergoing gynecologic oncology surgery

BACKGROUND: Postoperative nausea and vomiting (PONV) is a major concern during the post-surgical period. 5-hydroxy-tryptamine (5-HT3) receptor antagonists may be useful for the prevention of PONV. The recently developed 5-HT3 receptor antagonists, ramosetron and palonosetron, have a greater receptor affinity and a longer elimination half-life. This study was designed to assess the efficacy of palonosetron and ramosetron for prevention of PONV in patients receiving intravenous patient-controlled analgesia (IV-PCA) with opioids after gynecological oncology surgery. METHODS: In this prospective trial, 290 female patients scheduled for elective gynecologic oncology surgery with IV-PCA with opioids were randomized to receive either 0.3 mg ramosetron or 0.075 mg palonosetron intravenously. The occurrence of nausea and vomiting and the use of rescue antiemetics were recorded immediately after the end of surgery, and 0-3 h, 3-24 h, and 24-48 h postoperatively. RESULTS: The total incidence of PONV was similar between the two groups 0-48 h after surgery, but the incidence of nausea was significantly lower in the ramosetron group 24-48 h postoperatively (11.5% vs. 22.0%, P = 0.036). The incidence of vomiting and the use of rescue antiemetics were not significantly different between the two groups during any of the time intervals. Pain intensity scores and total fentanyl consumption were significantly lower in the ramosetron group 24-48 h postoperatively compared to the palonosetron group (P = 0.021, P = 0.041, respectively). CONCLUSIONS: The prophylactic effects of ramosetron and palonosetron on PONV incidence in the postoperative 48 h were similar in patients undergoing gynecologic oncology surgery and those receiving opioid-based IV-PCA.

Randomized controlled trial of palonosetron in preventing postoperative nausea and vomiting in gyneco-logical surgeries / 临床麻醉学杂志

Objective To compare the effects of a single injection of palonosetron and tropise-tron to prevent postoperative nausea and vomiting (PONV ) in gynecological surgeries. Methods Sixty patients undergoing elective major gynecological surgeries with general anesthesia (Apfel score ≥ 3 ) were included and randomized to group P (palonosetron ) and group T (tropisetron),30 patients in each group.All patients received general anesthesia with tracheal intuba-tion,and palonosetron 0.25 mg or tropisetron 5 mg were injected before anesthesia respectively in two groups.Intravenous hydromorphine was delivered for postoperative analgesia in all patients. PONV were evaluated and followed up for 72 hours.The degree of PONV was recorded and the com-plete response rate (CR)and complete control rate (CC)were calculated.Results The degree of PONV in 0-24 h and 24-48 h was milder in group P than in group T (P <0.05),while in 48-72 h the degree of PONV was similar between the two groups.In group P,5 patients had vomiting postopera-tively with the failure period of treatment of (1 9.6±9.4)h,and no patients needed rescue treatments. While in group T,1 9 patients suffered from vomiting with the failure period of treatment of (20.6± 4.5)h,and rescue treatments were delivered 3 times in total.The CR and CC of preventing PONV in 0-24 h,24-48 h and 0-72 h were significantly higher in group P than in group T (P <0.05).The CR and CC of the two groups were comparable in 48-72 h postoperatively.Conclusion A preoperative single dose of palonosetron 0.25 mg is better than tropisetron 5 mg in preventing PONV within 48hours after gynecological surgery.

Oxycodone hydrochloride in postoperative analgesia in breast cancer patients undergoing modified radical mastectomy / 临床麻醉学杂志

Objective To evaluate the safety and effective dose of oxycodone hydrochloride in-jection for postoperative analgesia in breast cancer patients undergoing modified radical mastectomy under general anesthesia in a prospective,randomized controlled clinical trial.Methods One hundred fe-male patients at ASAⅠ or Ⅱ,aged 29-69 years,BMI< 30 kg/m2 ,scheduled for elective modified radical mastectomy under general anesthesia,were randomly divided into two groups (n =50):low dose oxycodone hydrochloride injection group (group OL),and high dose oxycodone hydrochloride injection group (group OH).Oxycodone 0.03 mg/kg (group OL)and 0.09 mg/kg (group OH)was intravenous injected 30 mi-nutes before the end of the operation,respectively.Anesthetics usage was terminated when skin was sutured.Pain at rest and during movement was assessed using VAS score at 5 min,0.5,2,4,8,12 and 24 h after extubation of laryngeal mask.Total consumption of analgesic for rescue analgesia in the ward and the adverse events were recorded.Results Compared with group OL,group OH had lower VAS scores,There were significant differences in the VAS scores between groups at 8 and 12 h after surgery (P <0.05).No serious adverse event occurred in each group postoperatively.The most common adverse event was nausea, followed by vomiting and dizziness.There was no significant difference in the incidence of adverse event be-tween the two groups.Conclusion 0.09 mg/kg oxycodone hydrochloride injection is safe and effective in re-ducing pain after breast cancer radical operation.

Oral Clonidine and Midazolam as Premedication in Pediatric Anesthesia- Efficacy and Outcome in Comparison with Oral Promethagine.

Background: In most of the centers of developing country no premedication is used in cases of anesthesia in paediatric population. Many centers use oral promethagine on the night before to ensure good sleep. Th ere is dilemma of using premedication with a fear of losing control over baby. Th ere are controversial results regarding the eff ectiveness of clonidine compared with midazolam as premedication in children. Aim: Th e aim of this study is to evaluate the effi cacy of oral clonidine and midazolam as a premedication and compare to with that of conventional promethagine in pediatric patients. Methods: Th is prospective randomized controlled study was carried out in Combined Military Hospital, Dhaka, among 90 children aged 2 to 7 years of ASA grade I & II scheduled for elective surgery under general anaesthesia during the period of Jan 2012 to Dec 2013. All the children were randomly divided in three groups, 30 children received only syrup promethagine as per body weight (Group-P, n=30) at night. In the study groups, after the syp promethagine at night in addition they were also given oral clonidine 4 μg/kg mixed with honey (Group-C, n=30) and midazolam 0.5 mg/kg mixed with honey (Group-M, n=30) at 60 and 20 min before separation of baby from parents lap respectively. Th e protocol of general anesthesia like induction, intubation, maintenance, reversal and postoperative analgesia was the same for all three groups. Patient’s sedation status, separation anxiety, venipuncture, mask acceptance, anesthetics requirement, salivation, analgesia, post operative nausea vomiting (PONV) and emergence agitation were recorded by an observer blind of the patient’s group. Results: Children characteristics were similar in all three groups. Children who had received clonidine as well as midazolam had more satisfactory sedation upon parent separation and less separation anxiety than promethazine; compared with midazolam & promethazine, clonidine premedication was associated with better mask acceptance; children who had received clonidine had signifi cantly less incidence of salivation and less rescue antisialagogue; children received clonidine were better managed both intra & post operatively and needed less rescue analgesics; children who had received clonidine had signifi cantly less episodes of PONV and also required less rescue antiemetic; incidence of emergence agitation was less in clonidine group in comparison with other two groups. Conclusion: Th e fi ndings of the study suggest that both midazolam and clonidine are safe and eff ective as anaesthetic premedication in paediatric population. It can be concluded that oral midazolam premedication is eff ective as far as sedation is concern but considering multifarious anesthetic function oral clonidine is much superior premedicant. However, the risks of heart rate and blood pressure decreases, and the prolonged onset of sedation associated with clonidine should be considered. We recommend further multi-centre studies with larger samples to validate fi ndings of our study.

Comparison of Ondansetron Used Alone and in Combination with Dexamethasone as a Prophylaxis for Postoperative Nausea and Vomiting Following Laparoscopic Cholecystectomy.

Postoperative nausea and vomiting (PONV) is common after anaesthesia and surgery. In patients undergoing laparoscopic cholecystectomy (LC) without antiemetic prophylaxis, the incidence can be as high as 76% which would cause unexpected delay in hospital discharge. This study was designed to compare the efficacy of the ondansetron alone with combination of ondansetron and dexamethasone the given as prophylaxis for PONV in patients undergoing laparoscopic cholecystectomy. One hundred patients undergoing elective laparoscopic cholecystectomy were selected and randomly divided into 2 groups of 50 each. Group I received 4mg of ondansetron intravenously (iv), whereas Group II received ondansetron 4mg and dexamethasone 4mg just before induction of anaesthesia. Postoperatively, the patients were assessed for episodes of nausea, vomiting and need for rescue antiemetic. Complete response defined as no nausea and vomiting during first 24 hours, was noted in 76% of patients in Group I and in 92% of patients in Group II. Rescue anti emetic requirement was less in Group II (4%) than Group I (20%). So it can be concluded that the combination of ondansetron and dexamethasone is more effective in preventing PONV in patients undergoing laparoscopic cholecystectomy than ondansetron alone.

Pre-operative ondansetron vs. metoclopramide for prevention of post-operative nausea and vomiting in elective lower-segment caesarean section under spinal anaesthesia.

Background: The problem of nausea and vomiting is a very old but a less thought of problem. Nausea and vomiting are the most common distressing symptom in the postoperative period. Antiemetic drugs play an important role in therapy of post-operative nausea and vomiting (PONV). Though many drugs have been tried as prophylaxis and treatment of PONV, no drug has been proved significantly effective and hence, the present study was undertaken to compare the efficacy and safety of IV metoclopramide and IV Ondansetron as prophylaxis for postoperative nausea and vomiting in lower-segment caesarean section (LSCS) under spinal anaesthesia. Methods: After institutional approval and informed consent 100 ASA I & II patients undergoing non emergent LSCS taken for study. The patients were divided randomly into 2 groups of 50 each. Group I received IV metoclopramide 10mg and Group II received IV. Ondansetron 4mg. Anaesthetic management was standardized. The incidence of vomiting and retching as number of episodes was studied. Nausea was graded depending on the severity and data derived. Results: The mean age, weight and duration of surgery was not significantly different when compared group-1 parturiants with group-2. The mean episodes of emesis, nausea and retching at different postoperative duration were significantly decreased (p<0.05) in Ondansetron group when compared to metoclopramide group as postoperative time progresses. Conclusions: Injection ondansetron 4mg provided decrease in the incidence of PONV than metoclopramide as the side effects with these drugs were minimal.

Evaluation of the Efficacy of Methylprednisolone, Etoricoxib and a Combination of the Two Substances to Attenuate Postoperative Pain and PONV in Patients Undergoing Laparoscopic Cholecystectomy: A Prospective, Randomized, Placebo-controlled Trial

BACKGROUND: Establishment of laparoscopic cholecystectomy as an outpatient procedure has accentuated the clinical importance of reducing early postoperative pain, as well as postoperative nausea and vomiting (PONV). We therefore planned to evaluate the role of a multimodal approach in attenuating these problems. METHODS: One hundred and twenty adult patients of ASA physical status I and II and undergoing elective laparoscopic cholecystectomy were included in this prospective, randomized, placebo-controlled study. Patients were divided into four groups of 30 each to receive methylprednisolone 125 mg intravenously or etoricoxib 120 mg orally or a combination of methylprednisolone 125 mg intravenously and etoricoxib 120 mg orally or a placebo 1 hr prior to surgery. Patients were observed for postoperative pain, fentanyl consumption, PONV, fatigue and sedation, and respiratory depression. Results were analyzed by the ANOVA, a Chi square test, the Mann Whitney U test and by Fisher's exact test. P values of less than 0.05 were considered to be significant. RESULTS: Postoperative pain and fentanyl consumption were significantly reduced by methylprednisolone, etoricoxib and their combination when compared with placebo (P0.05). The methylprednisolone and methylprednisolone + etoricoxib combination significantly reduced the incidence and severity of PONV and fatigue as well as the total number of patients requiring an antiemetic treatment compared to the placebo and etoricoxib (P<0.05). CONCLUSIONS: A preoperative single-dose administration of a combination of methylprednisolone and etoricoxib reduces postoperative pain along with fentanyl consumption, PONV, antiemetic requirements and fatigue more effectively than methylprednisolone or etoricoxib alone or a placebo.