Objective To evaluate the efficacy and safety of a subanesthetic dose of esketamine in prevent-ing postoperative nausea and vomiting following carboprost administration during cesarean section.Methods One hundred thirty-five full-term singleton parturients,ASAⅠ-Ⅱ,aged 20-40 years,scheduled for elective cesarean section,were recruited.They were randomly assigned to three groups(n=45):the normal saline group(Group C),the palonosetron group(Group P),and the esketamine group(Group E).All parturients received combined spinal-epidural anesthesia,achieving a sensory level of T5-7.Following umbilical cord clamping,carboprost tromethamine was injected into the uterine body.Concurrently,Group C received intravenous normal saline,Group P received palonosetron,and Group E received esketamine.The incidence of nausea,vomiting,and chest discomfort was recorded from the time of carboprost administration until the parturients left the operating theater.Additionally,mean arterial pressure(MAP),heart rate(HR),oxygen saturation(SpO2),and Ramsay sedation scores were mea-sured at six time points:upon entering the room(T0),1 minute before intervention(T1),2 minutes(T2),5 min-utes(T3),15 minutes(T4),and 30 minutes(T5)post-intervention.Maternal satisfaction was evaluated as the parturients left the operating room.Results Compared with group C,the incidence of nausea,vomiting,and chest discomfort in group E was significantly lower(all P<0.05).Additionally,group E showed a significantly lower incidence of nausea and chest discomfort compared to group P(all P<0.05).In terms of maternal satisfaction,group E reported significantly higher levels than both group C(P<0.05)and group P(P<0.05).No significant differences were observed in the incidence of nausea,vomiting,chest discomfort,or satisfaction between the other groups(P>0.05).Conclusion The administration of subanesthetic doses of esketamine significantly decreases the incidence of adverse effects such as nausea,vomiting,and chest tightness that are commonly associated with carboprost tromethamine use during cesarean sections,thereby enhancing patient satisfaction in the perioperative period.

Objective To evaluate the efficacy and safety of a subanesthetic dose of esketamine in prevent-ing postoperative nausea and vomiting following carboprost administration during cesarean section.Methods One hundred thirty-five full-term singleton parturients,ASAⅠ-Ⅱ,aged 20-40 years,scheduled for elective cesarean section,were recruited.They were randomly assigned to three groups(n=45):the normal saline group(Group C),the palonosetron group(Group P),and the esketamine group(Group E).All parturients received combined spinal-epidural anesthesia,achieving a sensory level of T5-7.Following umbilical cord clamping,carboprost tromethamine was injected into the uterine body.Concurrently,Group C received intravenous normal saline,Group P received palonosetron,and Group E received esketamine.The incidence of nausea,vomiting,and chest discomfort was recorded from the time of carboprost administration until the parturients left the operating theater.Additionally,mean arterial pressure(MAP),heart rate(HR),oxygen saturation(SpO2),and Ramsay sedation scores were mea-sured at six time points:upon entering the room(T0),1 minute before intervention(T1),2 minutes(T2),5 min-utes(T3),15 minutes(T4),and 30 minutes(T5)post-intervention.Maternal satisfaction was evaluated as the parturients left the operating room.Results Compared with group C,the incidence of nausea,vomiting,and chest discomfort in group E was significantly lower(all P<0.05).Additionally,group E showed a significantly lower incidence of nausea and chest discomfort compared to group P(all P<0.05).In terms of maternal satisfaction,group E reported significantly higher levels than both group C(P<0.05)and group P(P<0.05).No significant differences were observed in the incidence of nausea,vomiting,chest discomfort,or satisfaction between the other groups(P>0.05).Conclusion The administration of subanesthetic doses of esketamine significantly decreases the incidence of adverse effects such as nausea,vomiting,and chest tightness that are commonly associated with carboprost tromethamine use during cesarean sections,thereby enhancing patient satisfaction in the perioperative period.

Objective To investigate the levels of miR-1 9a and miR-1 9b expressions in cancer tissues and serum of patients with non-small cell lung cancer (NSCLC),and evaluate the potential of miR-1 9a and miR-1 9b as biomarkers of NSCLC.Methods Real time-PCR was used to detect the expressions of miR-1 9a and miR-1 9b in serum of normal people and patients with NSCLC and in cancer tissues and their corresponding non-tumor tissues. The diagnostic value of miR-1 9a and miR-1 9b for NSCLC was assessed by receiver operator characteristic (ROC) curve.Results The expression levels of serum miR-1 9a and miR-1 9b were significantly higher in patients with non-small cell lung cancer than in normal people (P <0.05 ).The expressions of miR-1 9a and miR-1 9b in NSCLC were much higher than in the adjacent normal tissues.For miR-1 9a the area under ROC curve was 0.989,and the sensitivity and specificity were 95.1 and 94.0.The area under ROC curve for miR-1 9b was 0.983,and the sensitivity and specificity were 93.4 and 94.0.Conclusion The high expressions of miR-1 9a and miR-1 9b are found in cancer tissues and serum from NSCLC patients.Therefore,they may be used as noninvasive biomarkers for diagnosis and prognosis of NSCLC.