Objective To explore the feasibility of the mixed- or single-application of etomidate and propofol during modified electroconvulsive therapy (MECT). Methods Ninety hospitalized schizophrenics undergoing MECT were randomly assigned to 3 groups which were respectively anesthetized with mixed liquor application of etomidate and propofol (group E-P), etomidate (E) or propofol (P). Charge delivered (CD), EEG seizure duration (ESD), postictal suppression index (PSI), seizure energy index (SEI) and seizure generalization index (SGI) were recorded. Mental status and memory levels were assessed with the Positive and Negative Syndrome Scale (PANSS) and Wechsler Memory Scale (WMS) before and after treatment. The adverse reactions were recorded. All data were analyzed with the software SPSS12.0. Results The ESD, PSI, SEI, SGI and WMS scores, and the minus score of PANSS were significantly higher (P < 0.05) and CD was lower (P < 0.05) in group E-P than those in group P. No significant alteration between group E-P and group E (P > 0.05). The adverse reactions such as nausea/vomiting and secretion increase in group E-P were lower than those in group E (P < 0.05). The injection pain of group E-P was lower than that of group P (P<0.05). Conclusion The mixed liquor of etomidate and propofol has an advantage over the single-application of the two drugs during MECT.

Objective:To explore the relationship between sleep structure changes and state or trait anxiety in patients with insomnia.Methods:Investigations were conducted with the State-trait Anxiety Inventory (STAI) and whole-night ploysomnography (PSG) recorded in 31 patients with insomnia and 20 normal controls.Repeated examinations were conducted in return visits 3～4 months after discharge.Results:Compared to control group,the patients with insomnia had decreased sleep time[(333.71±84.33) min vs.(403.65±19.29) min] and sleep efficiency[(70.41±17.35) % vs.(83.45±4.42) %],and increased sleep latency[(39.48±24.24) min vs.(19.65±8.57) min],REM sleep latency[(106.60±42.89) min vs.(86.80±12.25) min],proportion of S_1 sleep time[(25.36±14.22) % vs.(8.86±1.77) %]and awakening times[(4.45±2.51)vs.(1.75±1.07)].The proportions of S_(3+4) time[(7.38±9.70) % vs.(13.78±4.24) %] and REM sleep time reduced[(14.54±5.61) % vs.(19.18±2.14)%] (Ps<0.05).According to the STAI,scores of both state anxiety[(47.94±8.96) vs.(39.15±4.51)] and trait anxiety[(49.94±8.90) vs.(42.05±7.13)] were significantly higher in insomnia group than in control group (Ps<0.05).State anxiety was positively correlated with sleep latency (r=0.42),REM sleep latency (r=0.25),awakening times (r=0.44) and proportion of S_1 sleep time (r=0.34) (Ps<0.05),and negatively correlated with proportion of REM sleep time (r=-0.41,P<0.01).Trait anxiety was positively correlated with sleep latency (r=0.37,P<0.01) and wakefulness frequency (r=0.29,P<0.05).In return visits,the sleep structure improved,state anxiety score reduced,and trait anxiety had no significant changes.Conclusion:Patients with insomnia have significant sleep structural changes and higher state and trait anxiety.Their sleep structural changes are possilly related to state and trait anxiety.