Signal mining of valproic acid-induced adverse drug events based on FAERS / 中国药房

OBJECTIVE To provide reference for clinically safe and rational drug use through mining and analyzing adverse drug event （AE） signals induced by valproic acid （VPA）. METHODS Reporting Odds Ratio （ROR） and Bayesian Confidence Propagation Neural Network （BCPNN） methods of Measures of Disproportionality were performed to mine and analyze the data of VPA-related AE reports in the US FDA Adverse Event Reporting System （FAERS） database from the first quarter of 2013 to the fourth quarter of 2022. RESULTS A total of 1 253 （ROR） and 1 109 （BCPNN） valid signals of preferred terms （PT） were obtained after data processing by the two analysis methods， involving 27 system organs （SOC）， mainly focusing on nervous system disorders， psychiatric disorders， general disorders and administration site conditions. Signals that did not appear in the instruction were associated with 2 SOCs： ear and labyrinth disorders， infections and infestations. CONCLUSIONS As a first-line broad-spectrum anti-epileptic drug， attention should also be paid to eye toxicity and infection risk in the clinical application in addition to paying attention to common adverse events in the instruction.

Significance of expressions of HDGF、VEGF and mucin 5B in hepatolithiasis associated with intrahepatic cholangiocarcinoma / 中华肝胆外科杂志

Objective:To study the roles of hepatoma-derived growth factor (HDGF), vascular endothelial growth factor (VEGF) and mucin 5B (MUC5B) in hepatolithiasis associated with intrahepatic cholangiocarcinoma (HICC).Methods:The clinical data and tissue specimens of 116 patients who underwent hepatectomy at the Third Affiliated Hospital of Wenzhou Medical University from October 1999 to October 2019 were retrospectively analyzed. There were 41 patients with HICC (the HICC group), 38 patients with intrahepatic cholangiolithiasis (the intrahepatic cholangiolithiasis group), and 37 patients with benign liver tumor who underwent hepatectomy (the control group). There were 47 males and 69 females, with age of (66.1±3.2) years old. The positive expressions of HDGF, VEGF and MUC5B in the three groups were compared. In 41 patients with HICC, the correlation between positive expressions of HDGF, VEGF and MUC5B with patients’ clinical characteristics were studied.Results:Compared with the control group, the positive expression rates of HDGF, VEGF and MUC5B in the HICC group and the intrahepatic cholangiolithiasis group were significantly increased, ( P<0.05). Compared with the intrahepatic cholangiolithiasis group, the positive expression rates of HDGF, VEGF and MUC5B in the HICC group were significantly increased ( P<0.05). Positive expression of VEGF in HICC patients was correlated with tumor differentiation, tumor local invasion, tumor length, tumor stage, tumor carbohydrate antigen CA19-9 level and lymph node metastasis ( P<0.05). Spearman correlation analysis showed that HDGF was positively correlated with VEGF expression in HICC tissues specimens ( r=0.935, P<0.01). Survival analysis showed that the cumulative survival rates (36.7%, 17.1%, 7.3%) of patients with positive expression of VEGF were significantly lower than that of patients with negative expression (51.2%, 26.8%, 19.5%) at 1, 3, 5 years after surgery ( P<0.01). The cumulative survival rate (34.1%, 17.1%, 4.9%) of patients with MUC5B positive expression were significantly lower than that of patients with negative expression (53.7%, 31.7%, 17.1%) at 1, 3, 5 years after surgery ( P<0.01). Conclusion:HDGF can be used as a reference indicator for early assessment of HICC. Overexpressions of VEGF and MUC5B can be used as important indicators for HICC in evaluating disease progression and prognosis.

MiR-29a-3p Inhibits Proliferation and Osteogenic Differentiation of Human Bone Marrow Mesenchymal Stem Cells via Targeting FOXO3 and Repressing Wnt/β-Catenin Signaling in Steroid-Associated Osteonecrosis

Background and Objectives@#This study was to investigate the role of microRNA-29a-3p (miR-29a-3p) in human bone marrow mesenchymal stem cells (hBMSCs), and its relationship with steroid-associated osteonecrosis. @*Methods@#and Results: The online tool GEO2R was used to screen out the differentially expressed genes (DEGs) in GSE123568 dataset. Quantitative real time-polymerase chain reaction (qRT-PCR) was performed to detect the expression of miR-29a-3p, forkhead box O3 (FOXO3), alkaline phosphatase (ALP), bone gamma-carboxyglutamate protein (OCN) and RUNX family transcription factor 2 (Runx2) in the hBMSCs isolated from the patients with steroid-associated osteonecrosis. CCK-8 assay was executed to measure cell viability; western blot assay was utilized to detect FOXO3, ALP, Runx2, OCN and β-catenin expression. Cell apoptosis and cell cycle were detected by flow cytometry. Immunofluorescence assay was used to detect the sub-cellular localization of β-catenin. Bioinformatics analysis and luciferase reporter gene assay were performed to confirm whether miR-29a-3p can combine with FOXO3 3’UTR. MiR-29a-3p was markedly up-regulated in the hBMSCs of patients with steroid-associated osteonecrosis, while FOXO3 mRNA was significantly down-regulated. Transfection of miR-29a-3p mimics significantly inhibited the hBMSCs’ proliferation, osteogenic differentiation markers’ expressions, including ALP, Runx2, OCN, and repressed the ALP activity, as well as promoted cell apoptosis and cell-cycle arrest. FOXO3 was identified as a target gene of miR-29a-3p, and miR-29a-3p can inhibit the expression of FOXO3 and β-catenin, and inhibition of miR-29a-3p promoted translocation of β-catenin to the nucleus. @*Conclusions@#MiR-29a-3p can modulate FOXO3 expression and Wnt/β-catenin signaling to inhibit viability and osteogenic differentiation of hBMSCs, thereby promoting the development of steroid-associated osteonecrosis.

Expression of mucin 5B in primary hepatolithiasis patients with hepatectomy and its clinical significance / 中华肝胆外科杂志

Objective:To explore the expression and clinical significance of mucin 5B in patients with primary intrahepatic bile duct stones (PHL) after hepatectomy.Methods:Collected the bile duct mucosa of 48 patients with intrahepatic bile duct stones (PHL group) and 16 patients with non-calculous benign liver disease (control group) who underwent hepatectomy in the Third Affiliated Hospital of Wenzhou Medical University from January 2014 to January 2019, Bile duct wall, bile and venous blood. The preoperative bile and serum indexes of the two groups were compared. Immunohistochemical staining was used to examine the expression of mucin 1 and mucin 5B in the bile duct wall, and the bile duct wall was examined pathologically by HE routine staining. With mucin 1 as a positive control and β-actin as an internal reference gene, real-time PCR was used to examine the mRNA expression levels of mucin 1 and mucin 5B in the bile duct mucosa. Pearson correlation analysis was used to analyze the correlation of variables within the PHL group.Results:The preoperative serum lipid indexes in the PHL group were higher than those in the control group, while the total bile acid concentration [(181.5±18.2) mmol/L vs. (192.1±22.5) mmol/L] and the molar percentage of bile acid [(80.7±1.6)% vs. (89.7±1.0)%] is lower than the control group, the difference is statistically significant ( P<0.05). The expression of mucin 1 mRNA in the PHL group was higher than that in the control group, but the difference was not statistically significant ( P>0.05). The expression of mucin 5B mRNA in the PHL group was significantly higher than that in the control group [(0.94±0.12) vs. (0.73±0.24)], the difference was statistically significant ( P<0.05); The increased expression of bile duct mucin 5B mRNA was negatively correlated with the level of total bile acids in bile ( r=-0.4, P<0.05). Conclusions:The increased expression of mucin 5B is closely related to PHL, which may be related to the promotion of bile acid absorption by the bile duct mucosal epithelium, which causes mucin to secrete into the bile in large quantities, leading to the formation of stone-causing bile.

Prognostic factors of radical resection on patients with intrahepatic cholangiocarcinoma and impact of abdominal lymph node dissection on prognosis / 中华肝胆外科杂志

Objective To study factors affecting prognosis of patients with intrahepatic cholangiocarcinoma (ICC),focusing on the correlation between extent of lymph node dissection and prognosis of patients with ICC.Methods The clinical data of ICC patients who underwent radical resection at the Hepatobiliary and Pancreatic Surgery of Affiliated Cancer Hospital of Zhengzhou University from October 2013 to October 2017 were retrospectively analyzed.According to the extent of lymph node dissection,the patients were divided into the non-dissected lymph node group,the routine dissection lymph node group and the extended lymph node dissection group.The prognoses of the three groups were compared.The Cox stepwise regression model was used to analyze the independent risk factors for prognosis of patients with ICC.Results The 178 patients included 109 males and 69 females.Their ages ranged from 30 to 81 years (average 59 years).There were 80 patients in the non-dissected group,34 patients in the routine lymph node dissection group,and 64 patients in the extended lymph node dissection group.The overall survival rates of the 178 patients at 3 years after liver resection was 29.2％ (52/178),overall median survival 25.8 months.The 3-year survival rates of the non-dissected group,routine dissection group,and extended dissection group were 10.0％ (8/80),52.9％ (18/34),40.6％ (26/64),respectively.The differences among the three groups were significant (P ＜ 0.05).Comparison among the three groups showed that there was no significant difference in survival rates between the routine dissection group and the extended dissection group (P ＞ 0.05).There was a significant difference in survival rates between the non-dissected group and the extended lymph node dissection group (P ＜0.05).Univariate analysis showed that CA19-9,tumor diameter,portal tumor thrombus,and lymph node dissection were related to prognosis of patients with ICC (P ＜ 0.05).Multivariate analysis showed CA19-9,tumor diameter,and extent of lymph nodes clearance were related to patient survival (P ＜ 0.05).Conclusions CA19-9,tumor diameter,and extent of lymph node dissection were independent risk factors of survival in patients with ICC.For patients with ICC who undergo surgical resection,conventional laparoscopic lymph node dissection can achieve good results,and there is no need to extend lymph node dissection.

Predictors of death after endovascular mechanical thrombectomy in patients with acute vertebrobasilar occlusive stroke / 国际脑血管病杂志

Objective@#To investigate the predictors of death after endovascular mechanical thrombectomy (EMT) in patients with acute vertebrobasilar occlusive stroke (VBOS).@*Methods@#Patients with acute VBOS treated with EMT in Wuhan No. 1 Hospital were enrolled retrospectively. The demographic and clinical data were collected. According to whether the patients died at 90 d after procedure, they were divided into survival group and death group. The demographic and clinical data were compared between the two groups. Multivariate logistic regression analysis was used to determine the independent risk factors for death at 90 d after EMT.@*Results@#A total of 47 patients were enrolled. The median age was 62 years, 34 were males (72.3%), the median baseline National Institutes of Health Stroke Scale (NIHSS) score was 16, 42 patients (89.4%) had recanalization (modified Thrombolysis in Cerebral Infarction[mTICI] 2b/3 grade), and 12 (25.5%) died within 90 d after procedure. Univariate analysis showed that the baseline NIHSS score (26 [21-28]vs. 12 [5-23]; Z=-3.165, P=0.002), percentage of neutrophil (81.61% ±11.82% vs. 72.20% ±12.09%; t=-2.137, P=0.033), neutrophil/lymphocyte ratio (10.54±7.17 vs. 4.98±3.57; t=-2.393, P=0.017), and incidence of sICH (25.0% vs. 2.9%; χ2=5.627, P=0.018) in the death group were significantly higher than those in the survival group, while the percentage of lymphocyte (12.00%±9.04% vs. 20.67%±10.39%; t=-2.429, P=0.015) was significantly lower than that of the survival group. Multivariate logistic regression analysis showed that high baseline NIHSS score (odds ratio [OR] 1.243, 95% confidence interval [CI] 1.046-1.318; P=0.038), high neutrophil/lymphocyte ratio (OR 1.278, 95% CI 1.002-1.630; P=0.049) and symptomatic intracranial hemorrhage (OR 5.088, 95% CI 1.065-38.718; P=0.046) were the independent predictors for death.@*Conclusion@#High baseline NIHSS score, high neutrophil/lymphocyte ratio and symptomatic intracranial hemorrhage are the independent predictors for death within 90 d after EMT in patients with acute VBOS.

Predictors of death after endovascular mechanical thrombectomy in patients with acute vertebrobasilar occlusive stroke / 国际脑血管病杂志

Objective To investigate the predictors of death after endovascular mechanical thrombectomy (EMT) in patients with acute vertebrobasilar occlusive stroke (VBOS).Methods Patients with acute VBOS treated with EMT in Wuhan No.1 Hospital were enrolled retrospectively.The demographic and clinical data were collected.According to whether the patients died at 90 d after procedure,they were divided into survival group and death group.The demographic and clinical data were compared between the two groups.Multivariate logistic regression analysis was used to determine the independent risk factors for death at 90 d after EMT.Results A total of 47 patients were enrolled.The median age was 62 years,34 were males (72.3％),the median baseline National Institutes of Health Stroke Scale (NIHSS) score was 16,42 patients (89.4％) had recanalization (modified Thrombolysis in Cerebral Infarction [mTICI] 2b/3 grade),and 12 (25.5％) died within 90 d after procedure.Univariate analysis showed that the baseline NIHSS score (26 [21-28]vs.12 [5-23];Z=-3.165,P=0.002),percentage of neutrophil (81.61％ ± 11.82％ vs.72.20％ ± 12.09％;t =-2.137,P =0.033),neutrophil/lymphocyte ratio (10.54 ±7.17 vs.4.98 ±3.57;t =-2.393,P=0.017),and incidence of sICH (25.0％ vs.2.9％;x2 =5.627,P=0.018) in the death group were significantly higher than those in the survival group,while the percentage of lymphocyte (12.00％ ± 9.04％ vs.20.67％ ±10.39％;t =-2.429,P=0.015) was significantly lower than that of the survival group.Multivariate logistic regression analysis showed that high baseline NIHSS score (odds ratio [OR] 1.243,95％ confidence interval [CI] 1.046-1.318;P =0.038),high neutrophil/lymphocyte ratio (OR 1.278,95％ CI 1.002-1.630;P =0.049) and symptomatic intracranial hemorrhage (OR 5.088,95％ CI 1.065-38.718;P =0.046) were the independent predictors for death.Conclusion High baseline NIHSS score,high neutrophil/lymphocyte ratio and symptomatic intracranial hemorrhage are the independent predictors for death within 90 d after EMT in patients with acute VBOS.

Relationship between Pst-Ⅰ polymorphism of mucin 4 gene and primary hepatolithiasis / 中华肝胆外科杂志

Objective To investigate the relationship between Pst-Ⅰ polymorphism of mucin 4 gene and primary hepatolithiasis in the Chinese population.Methods Venous blood of 96 healthy controls and 56 patients with hepatolithiasis were collected,and DNA was extracted.Polymerase chain reaction combined with restriction enzyme (PCR-RFLP) digestion was used to detect Pst-Ⅰ polymorphism of mucin 4 gene in the two groups.The genotype and gene frequency between the two groups were then compared.Results The genotype frequencies of GC,GT,TT in the control and the hepatolithiasis groups were 21.3％,12.7％,55.6％ and 53.2％,41.2％,19.8％,respectively.The alleles C and T gene frequencies in the control and the hepatolithiasis groups were 21.5％,72.7％ and 66.3％,30.2％,respectively.There were significant differences in Pst-Ⅰ polymorphism of mucin 4 genotype frequency and gene frequency between the two groups.Conclusion The data showed Pst-Ⅰ polymorphism of mucin 4 gene was associated with primary hepatolithiasis in Chinese patients.

The role of NF-κB signaling pathway in laryngeal leukoplakia recurrent with laryngeal reflux / 中华耳鼻咽喉头颈外科杂志

Objective@#To study the mechanism of vocal mucosal barrier damage mediated by NF-κB and NF-κB-regulated signaling pathway via probing the expression of inflammatory factors and essential proteins for node of NF-κB signaling pathway.@*Methods@#The patients suffering from vocal leukoplakia accompanied with larygopharyngeal reflux(LPR) were treated with oral administration of proton pump inhibitor(PPI). Mucosal specimens of vocal cord were collected from all patients before PPI treatment. And the mucosal specimens of vocal cord were collected from the patients with suspected recurrence at 8 weeks after PPI treatment. HE staining was used to observe the histopathological changes of the mucosa. ELISA was utilized to detect the levels of inflammatory factors including tumor necrosis factor(TNF)-α, interleukin(IL)-1 and IL-6. Western blot was used to detect the expression of p-p65, p-IKK and p-IκB. Immunofluorescence method was adopted to detect the entrance of p65 to cell nucleus.Data was analyzed by SPSS 23.0 software.@*Results@#In PPI untreated group, the expressions of IL-1β, TNF-α and IL-6 in the specimens of 8 weeks after operation were not different significantly from those obtained during operation.But in the PPI-treated group, the expressions were down-regulated.The expression of p-p65 in the middle and high grade heterogenous hyperplasia group was higher than that of low level heterogenous hyperplasia group.The difference of p65 and p-p65 expression between 8 weeks after surgery and surgery in PPI-untreated group was statistically insignificant (P>0.05). The difference of p65 expression between PPI-treated group and PPI pre-treatment group was statistically insignificant (P>0.05). The expression of p-p65 in the PPI-treated group was lower than that of the PPI pre-treatment group (P<0.05). The expressions of IL-1β, TNF-α and IL-6 were positively related with that of NF-κB-p65. Immun of luorescence method revealed the entrance of p65 to cell nucleus in PPI pre-treatment group, which meant that NF-κB was activated. In the PPI-treated group, few activated p65 could be observed in the cell nucleu.@*Conclusion@#The possible mechanism of vocal mucosal barrier damage in vocal leukoplakia accompanied with LPR maybe the vocal mucosal inflammation mediated by NF-κB and NF-κB-regulated signaling pathway activated with refluxed materials.

Diagnostic value of acetic acid with narrow-band imaging and magnifying endoscopy for small colorectal polyps / 中华消化内镜杂志

Objective To evaluate the clinical value of acetic acid with narrow-band imaging ( NBI ) and magnifying endoscopy ( ME ) on diagnosis of small colorectal polyps. Methods In this prospective study, 261 small colorectal polyps from 122 patients were observed by ME, NBI-ME, and acetic acid with NBI-ME, and then received endoscopic treatment. Endoscopic images were stored electronically and randomly allocated to 3 experts and 3 non-experts for diagnosis using Kudo pit pattern. The postoperative pathologic results acted as gold standard to evaluate the diagnostic accuracy of different endoscopic modes for small colorectal polyps. The image definition and interobserver agreement were compared among different endoscopic modes. Results The diagnostic accuracy of ME, NBI-ME, and acetic acid with NBI-ME for small colorectal polyps was 65. 5％ ( 171/261) , 90. 0％ ( 235/261) , and 94. 6％ ( 247/261) , respectively, in the experts group, and 57. 1％ ( 149/261) , 83. 1％ ( 217/261) , and 89. 3％ ( 233/261) , respectively, in the non-experts group. All experts and non-experts diagnosed small colorectal polyps more accurately by acetic acid with NBI-ME than by NBI-ME ( all P<0. 05 ) and ME ( all P<0. 001 ) . The image definition scores of acetic acid with NBI-ME in the experts group and non-experts group were significantly higher than those of NBI-ME and ME ( all P<0. 001) . The results of interobserver agreement showed that Kappa values (95％CI) of ME, NBI-ME, and acetic acid with NBI-ME diagnosis were 0. 578 (0. 508-0. 648), 0. 669 (0. 599-0. 739), and 0. 940 (0. 870-1. 010), respectively, for experts and 0. 476 (0. 406-0. 546), 0. 534 ( 0. 464-0. 604) , and 0. 830 ( 0. 760-0. 900 ) , respectively, for non-experts. Acetic acid with NBI-ME showed good interobserver agreement. Conclusion Acetic acid with NBI-ME has a higher diagnostic accuracy and good reproducibility for colorectal small polyps compared with ME and NBI-ME.

The preliminary analysis of double stent-retriever thrombectomy for acute internal carotid artery occlusion / 中华神经科杂志

Objective To explore the safety and efficacy of Solitaire AB double stents in acute occlusions in bifurcation of cerebral artery (including the ends of internal carotid artery and middle cerebral artery M1 segment).Methods The clinical and imaging data of six cases treated with the double stent retriever technique using the Solitaire AB system in Wuhan No.1 Hospital from January to November 2017 were retrospectively analyzed.And the therapeutic effect and postoperative complications of them were analyzed.Results One patient took the double stents directly,whereas five patients were treated with double stent-retriever thrombectomy after the failure of single stent thrombectomy.All of the six patients achieved recanalization successfully (modified thrombolysis in cerebral infarction (mTICI) 3 in five patients,mTICI 2b in one).All patients had no intracranial hemorrhage immediately after thrombectomy.In the 24 hours,7 days and 2 weeks,the median NIHSS score was 10 (3-17),3 (1-15) and 1 (0-15),respectively.During perioperative period,one patient had asymptomatic cerebral hemorrhage,one died of symptomatic cerebral hemorrhage within 48 hours,and one was complicated with pulmonary infection.Five patients were followed up by outpatient visit,and four patients showed good outcome (modified Rankin Scale score ≤2).Conclusion In the emergency revascularization of acute cerebral artery occlusion at arterial bifurcation,double stent-retriever is better at increasing the efficacy of thrombectomy and is safe compared with single stent mechanical thrombectomy.

Function of mucin 2, mucin 4 on lithogenic bile of calculus of intrahepatic duct / 中华肝胆外科杂志

Objective To investigate the function of mucin 2,mucin 4 on formation of lithogenic bile in patients with calculus of intrahepatic duct.Methods Bile duct mucosa,bile duct wall,bile and plasma were collected from 56 patients with calculus of intrahepatic duct (CID group) and 17 individuals without calculus of intrahepatic duct (control group).The bile duct wall was stained with mucin 2 (MUC2) and mucin 4 (MUC4).Reverse-transcription polymerase chain reaction (RT-PCR) was applied to study the mRNA expressions of MUC2 and MUC4 in the bile duct mucosa.The correlation of the bile duct and serum lipid index was analyzed.Results Serum lipid index in the CID group was significantly higher than control group (all P＜0.05).Biliary total bile acids and bile acids mol percentage were lower in the CID group than control group (both P＜0.05).The expressions of MUC2 was not increased significantly in CID group than the control group (all P＞0.05).The expressions of MUC4 were more significantly increased in CID group than the control group (P＜0.05).The mRNA of MUC4 in the CID group was also more significantly increased than in control group (P＜0.01).There were no correlations between MUC4 expression and the level of biliary total bile acid in the CID group (r=-0.374,P＜0.05).Conclusion The expression of MUC4 in patients with CID was enhanced,which promoted the absorption of bile acid by the mucosal epithelium of the bile duct,and caused a large amount of mucin to be secreted into bile,which may be related to the formation of stony bile.

Serological survey on Toxoplasma gondii infection in pregnant women with history of adverse pregnancy in Bazhou area,Hebei Province / 中国血吸虫病防治杂志

Objective To investigate the Toxoplasma gondii infection status in pregnant women with history of adverse preg?nancy and risk factors in Bazhou area,Hebei Province. Methods A total of 302 pregnant women with the history of adverse pregnancy were chosen as respondents(an experimental group)in the hospital from March 2012 to December 2015,and 197 pregnant women without the history of adverse pregnancy as a control group. TOX?IgG and TOX?IgM were detected by using ELI?SA in two groups. The risk factors of Toxoplasma infection were surveyed by questionnaires. Results The total positive rate of Toxoplasma antibodies was 28.15%(85/302)in the experimental group,which was significantly higher than that[9.64%(19/197)]in the control group,and the difference was statistically significant(χ2=24.76,P<0.05). The positive rates of TOX?IgM,TOX?IgG and TOX?IgM+TOX?IgG were 6.95%(21/302),18.54%(56/302),and 2.65%(8/302)respectively in the ex?perimental group,which were higher than 2.03%(4/197),7.61%(15/197),and 0%(0/197)respectively in the control group (χ2=6.07,11.67,3.76,all P<0.05). The questionnaire survey showed that the proportions of keeping pets,cutting board re?gardless,liking to eat hot pot or barbecue,eating raw meat,often eating in the restaurant in the pregnant women with Toxoplas?ma infection were higher than those in the pregnant women without Toxoplasma infection,and the differences were statistically significant(χ2=22.57,3.96,5.87,7.40,4.86,all P<0.05),and therefore,the above unhealthy habits may be important risk factors. Conclusions Toxoplasma infection could lead to adverse pregnancy outcomes. Therefore,the above?mentioned unhealthy habits should be avoided,especially during pregnancy period.

Comparison of the effects of total intravenous anesthesia or intravenous-inhalation combined anesthesia on intraoperative neurophysiological monitoring in spinal surgery / 临床麻醉学杂志

Objective To compare the effects of total intravenous anesthesia or Intravenous-in-halation combined anesthesia on intraoperative somatosensory evoked potential (SSEP)and motor evoked potential (MEP)in spinal surgery.Methods Sixty patients scheduled for spinal surgery under general anesthesia were divided randomly and equally into 2 groups.The anesthesia was maintained with TCI propofol (plasma target concentration 3.0-3.5 μg/ml)and 1% sevoflurane+propofol in group T or group I respectively.BIS was monitored and maintained at 40-50.SSEP and MEP was re-corded before induction of anaesthesia (T0 ),5 minutes after tracheal intubation (T1 ),during skin in-cision (T2 )and at the time of decompressing spinal canal (T3 ).Results The latency of P38 and N45 prolonged,and the amplitudes of P38 and N45 was significantly depressed at T1-T3 compared to those at T0 (P <0.05).No statistically significant differences in cortical SSEP amplitudes or latency was observed in each time point.There was no case who could not detect the wave of MEP intraoperative-ly in this study.Conclusion The data from these cases indicates that 1% sevoflurane can be used in conjunction with SSEP and MEP monitoring for some adult patients undergoing spinal surgery.