To investigate the incidence of postoperative neuropsychic dysfunction (PND) in Parkinson's disease (PD) patients undergoing deep brain stimulation (DBS) and to analyze its influencing factors.

Objective To compare the effects of desflurane inhalation anesthesia versus propofol total intravenous anesthesia on postoperative recovery quality in patients undergoing endoscopic transnasal pituitary adenoma resection,and to provide evidence-based recommendations for optimizing anesthetic management in this surgical population.Methods This single-center,prospective,randomized controlled trial enrolled 112 patients scheduled for endoscopic transnasal pituitary adenoma resection,who were randomly assigned to either the desflurane group(n=56)or the propofol group(n=56).The desflurane group received desflurane[0.7-1.0 minimum alveolar concentration(MAC)]combined with remifentanil for anesthesia maintenance,whereas the propofol group received propofol(4-6 mg·kg-1·h-1)with remifentanil.The primary outcome was defined as the time from discontinuation of anesthetics to achieving an Aldrete score of 9.Secondary outcomes included emergence time,extubation time,and incidences of postoperative agitation and vomiting.Results Patients receiving desflurane achieved an Aldrete score of 9 significantly faster than those in the propofol group(13.0 min vs 16.5 min,P=0.003).Similarly,both emergence time(14.0 min vs 16.5 min,P=0.009)and extubation time(13.0 min vs 16.5 min,P=0.003)were significantly shorter in the desflurane group.However,the desflurane group had higher incidences of postoperative agitation(17.9%vs 3.6%,P=0.015)and vomiting(19.6%vs 5.4%,P=0.022).No significant difference was observed in severe agitation rates or 24 h postoperative recovery quality[Quality of Recovery-15(QoR-15)scores]between groups.Conclusion Desflurane anesthesia significantly accelerates postoperative recovery in patients undergoing endoscopic transnasal pituitary adenoma resection,however,it may increase risks of mild agitation and vomiting.In clinical applications,it is necessary to balance recovery benefits against potential adverse effects,and take targeted prophylactic measures.

Postoperative cognitive dysfunction(POCD)is a common complication of anesthesia and surgery.With advances in neurocognitive science,POCD has been classified under the category of perioperative neurocognitive disorders(PND).However its diagnostic criteria have not been standardized.Patients undergoing neurosurgery often have pre-existing mild cognitive impairment.Moreover cognitive impairment can be directly exacerbated by structural and functional brain damage resulting from surgical procedures,which is significantly different from other surgical procedures.Dexamethasone,a commonly used neurosurgical agent,exerts neuroprotective effects through anti-inflammation,reduction of cerebral edema,and lowering of intracranial pressure.While some studies have indicated dexamethasone's potential to mitigate POCD in non-neurosurgical settings,its performance and underlying mechanisms in neurosurgical procedures remain unclear.After a systematic search,only one randomized controlled trial for microvascular decompression was identified that directly addressed this issue.This article aims to address the research gap concerning the relationship between dexamethasone and POCD in neurosurgery procedures to provide insights and implication for future investigations.

Objective To investigate the current status of postoperative analgesia practices among patients undergoing neurosurgical procedures in China to provide evidence-based support for formulating a standardized postoperative analgesia consensus and optimizing pain management strategies in the field of neurosurgery.Methods A questionnaire was designed with Wenjuanxing,covering 42 items in aspects including general information of participating medical institutions,current practices of neurosurgical postoperative analgesia,anesthesiologists'understanding and implementation of analgesic concepts,and the status of postoperative analgesic management.Distributed through the Chinese Association of Anesthesiologists,the questionnaire data were exported for descriptive statistical analysis after collection.Results A total of 116 medical institutions participated in this survey,with 178 valid questionnaires collected.Over 90%of respondents recognized the clinical necessity of postoperative analgesia for neurosurgical patients,while the actual implementation rate was only 53.9%.Although most hospitals adopted techniques such as local infiltration anesthesia,scalp nerve blocks,patient-controlled intravenous analgesia,and multimodal analgesia,their actual utilization rates remained low.Less than 50%of participating centers implemented preventive analgesia.Despite high awareness of chronic postoperative pain(96.9%),follow-up rates were relatively low.More than half of the institutions lacked acute pain service for neurosurgical analgesia management.Conclusion Postoperative analgesia in clinical neurosurgical practice in China currently remains suboptimal,with inadequate management.There is an urgent need to enhance public education,facilitate multidisciplinary collaboration,and formulate standardized guidelines for clinical practice.

Objective To explore the neurophysiological signatures of auditory event-related potentials(AERP)during propofol-induced graded sedation depths,and their correlations with sedation levels and behavioral responsiveness,and further to evaluate the feasibility of AERP components as potential biomarkers for quantifying consciousness states.Methods An auditory Oddball paradigm was used to evoke AERP responses in healthy volunteers under propofol-induced graded sedation.Linear mixed model was applied to explore the relationships between the mean amplitudes of AERP components[mismatch negativity(MMN);P300]and both sedation-induced conscious states[Modified Observer's Assessment of Alertness/sedation Scale(MOAA/S)scores]and behavioral performance(response accuracy).Results Twenty-two healthy volunteers were included.Data analysis revealed significant negative correlations between the mean amplitudes of MMN components[MMN-Dev:β=-0.62(-2.70--0.07),P=0.04;MMN-Nov:β=-0.15(-0.27--0.03),P=0.02]and MOAA/S scores during propofol sedation.Novel stimulus-evoked MMN amplitudes also correlated with response accuracy[MMN-Nov:β=-5.08(-7.78--2.37),P<0.01].There was a weak positive correlation between novel stimulus-evoked P300 amplitudes and MOAA/S scores[β=0.16(0.04-0.39),P=0.04],however,the correlation was no significant difference after adjusting for confounding factors including age,education level,and cognitive level.Conclusion The mean amplitude of MMN component elicited during auditory tasks was correlated with conscious states and behavioral accuracy under propofol-induced graded sedation.MMN holds promise as a potential neurophysiological indicator for quantifying conscious states or behavioral responsiveness during sedation.

Objective To analyze the application effects of laryngeal mask airway(LMA)general anesthesia versus endotracheal intubation(ETI)general anesthesia in Parkinson's disease(PD)patients undergoing deep brain stimulation(DBS)implantable pulse generator(IPG)surgery.Methods A retrospective analysis was conducted on 164 PD patients who underwent IPG surgery at our hospital from August 2020 to February 2021.Patients were divided into two groups based on airway management:LMA group(n=61)and ETI group(n=103).Perioperative hemodynamic parameters,including mean arterial pressure(MAP)and heart rate(HR),were observed at five time points:pre-induction(T0),post-induction(T1),skin incision(T2),extubation(T3),and post-anesthesia care unit(PACU)admission(T4).Key outcomes,such as extubation time,intraoperative hypoxia events,LMA-to-ETI conversion rate,and postoperative complications(respiratory depression,pneumonia),were compared between the two groups.Results The LMA group had a significantly lower body mass index than the ETI group[(22.75±3.11)kg/m2 vs(23.85±3.49)kg/m2,P=0.039],while the other baseline characteristics were comparable.After induction,the LMA group exhibited a less decrease in MAP[(85.46±11.63)mmHg vs(74.13±11.78)mmHg in the ETI group,P<0.001].At extubation,the ETI group showed higher MAP[(98.27±13.78)mmHg vs(89.66±10.50)mmHg in the LMA group,P<0.001].The intraoperative use of vasoactive drugs was significantly lower in the LMA group(3.3%)than that in the ETI group(13.6%,P=0.032).The mean extubation time was shorter in the LMA group[(8.43±5.25)min vs(14.28±7.66)min in the ETI group,P<0.001].No intraoperative hypoxia or LMA-to-ETI conversion events occurred in either group.Postoperative respiratory depression and pneumonia rates showed no statistically significant differences between the groups.Conclusion LMA general anesthesia can be safely applied in PD patients undergoing DBS IPG implantation.It shortens extubation time,reduces the use of vasoactive drugs,and does not increase the risk of intubation-related complications.

Objective To explore the neurophysiological signatures of auditory event-related potentials(AERP)during propofol-induced graded sedation depths,and their correlations with sedation levels and behavioral responsiveness,and further to evaluate the feasibility of AERP components as potential biomarkers for quantifying consciousness states.Methods An auditory Oddball paradigm was used to evoke AERP responses in healthy volunteers under propofol-induced graded sedation.Linear mixed model was applied to explore the relationships between the mean amplitudes of AERP components[mismatch negativity(MMN);P300]and both sedation-induced conscious states[Modified Observer's Assessment of Alertness/sedation Scale(MOAA/S)scores]and behavioral performance(response accuracy).Results Twenty-two healthy volunteers were included.Data analysis revealed significant negative correlations between the mean amplitudes of MMN components[MMN-Dev:β=-0.62(-2.70--0.07),P=0.04;MMN-Nov:β=-0.15(-0.27--0.03),P=0.02]and MOAA/S scores during propofol sedation.Novel stimulus-evoked MMN amplitudes also correlated with response accuracy[MMN-Nov:β=-5.08(-7.78--2.37),P<0.01].There was a weak positive correlation between novel stimulus-evoked P300 amplitudes and MOAA/S scores[β=0.16(0.04-0.39),P=0.04],however,the correlation was no significant difference after adjusting for confounding factors including age,education level,and cognitive level.Conclusion The mean amplitude of MMN component elicited during auditory tasks was correlated with conscious states and behavioral accuracy under propofol-induced graded sedation.MMN holds promise as a potential neurophysiological indicator for quantifying conscious states or behavioral responsiveness during sedation.

Objective To analyze the application effects of laryngeal mask airway(LMA)general anesthesia versus endotracheal intubation(ETI)general anesthesia in Parkinson's disease(PD)patients undergoing deep brain stimulation(DBS)implantable pulse generator(IPG)surgery.Methods A retrospective analysis was conducted on 164 PD patients who underwent IPG surgery at our hospital from August 2020 to February 2021.Patients were divided into two groups based on airway management:LMA group(n=61)and ETI group(n=103).Perioperative hemodynamic parameters,including mean arterial pressure(MAP)and heart rate(HR),were observed at five time points:pre-induction(T0),post-induction(T1),skin incision(T2),extubation(T3),and post-anesthesia care unit(PACU)admission(T4).Key outcomes,such as extubation time,intraoperative hypoxia events,LMA-to-ETI conversion rate,and postoperative complications(respiratory depression,pneumonia),were compared between the two groups.Results The LMA group had a significantly lower body mass index than the ETI group[(22.75±3.11)kg/m2 vs(23.85±3.49)kg/m2,P=0.039],while the other baseline characteristics were comparable.After induction,the LMA group exhibited a less decrease in MAP[(85.46±11.63)mmHg vs(74.13±11.78)mmHg in the ETI group,P<0.001].At extubation,the ETI group showed higher MAP[(98.27±13.78)mmHg vs(89.66±10.50)mmHg in the LMA group,P<0.001].The intraoperative use of vasoactive drugs was significantly lower in the LMA group(3.3%)than that in the ETI group(13.6%,P=0.032).The mean extubation time was shorter in the LMA group[(8.43±5.25)min vs(14.28±7.66)min in the ETI group,P<0.001].No intraoperative hypoxia or LMA-to-ETI conversion events occurred in either group.Postoperative respiratory depression and pneumonia rates showed no statistically significant differences between the groups.Conclusion LMA general anesthesia can be safely applied in PD patients undergoing DBS IPG implantation.It shortens extubation time,reduces the use of vasoactive drugs,and does not increase the risk of intubation-related complications.

Objective To investigate the current status of postoperative analgesia practices among patients undergoing neurosurgical procedures in China to provide evidence-based support for formulating a standardized postoperative analgesia consensus and optimizing pain management strategies in the field of neurosurgery.Methods A questionnaire was designed with Wenjuanxing,covering 42 items in aspects including general information of participating medical institutions,current practices of neurosurgical postoperative analgesia,anesthesiologists'understanding and implementation of analgesic concepts,and the status of postoperative analgesic management.Distributed through the Chinese Association of Anesthesiologists,the questionnaire data were exported for descriptive statistical analysis after collection.Results A total of 116 medical institutions participated in this survey,with 178 valid questionnaires collected.Over 90%of respondents recognized the clinical necessity of postoperative analgesia for neurosurgical patients,while the actual implementation rate was only 53.9%.Although most hospitals adopted techniques such as local infiltration anesthesia,scalp nerve blocks,patient-controlled intravenous analgesia,and multimodal analgesia,their actual utilization rates remained low.Less than 50%of participating centers implemented preventive analgesia.Despite high awareness of chronic postoperative pain(96.9%),follow-up rates were relatively low.More than half of the institutions lacked acute pain service for neurosurgical analgesia management.Conclusion Postoperative analgesia in clinical neurosurgical practice in China currently remains suboptimal,with inadequate management.There is an urgent need to enhance public education,facilitate multidisciplinary collaboration,and formulate standardized guidelines for clinical practice.

Objective To compare the effects of desflurane inhalation anesthesia versus propofol total intravenous anesthesia on postoperative recovery quality in patients undergoing endoscopic transnasal pituitary adenoma resection,and to provide evidence-based recommendations for optimizing anesthetic management in this surgical population.Methods This single-center,prospective,randomized controlled trial enrolled 112 patients scheduled for endoscopic transnasal pituitary adenoma resection,who were randomly assigned to either the desflurane group(n=56)or the propofol group(n=56).The desflurane group received desflurane[0.7-1.0 minimum alveolar concentration(MAC)]combined with remifentanil for anesthesia maintenance,whereas the propofol group received propofol(4-6 mg·kg-1·h-1)with remifentanil.The primary outcome was defined as the time from discontinuation of anesthetics to achieving an Aldrete score of 9.Secondary outcomes included emergence time,extubation time,and incidences of postoperative agitation and vomiting.Results Patients receiving desflurane achieved an Aldrete score of 9 significantly faster than those in the propofol group(13.0 min vs 16.5 min,P=0.003).Similarly,both emergence time(14.0 min vs 16.5 min,P=0.009)and extubation time(13.0 min vs 16.5 min,P=0.003)were significantly shorter in the desflurane group.However,the desflurane group had higher incidences of postoperative agitation(17.9%vs 3.6%,P=0.015)and vomiting(19.6%vs 5.4%,P=0.022).No significant difference was observed in severe agitation rates or 24 h postoperative recovery quality[Quality of Recovery-15(QoR-15)scores]between groups.Conclusion Desflurane anesthesia significantly accelerates postoperative recovery in patients undergoing endoscopic transnasal pituitary adenoma resection,however,it may increase risks of mild agitation and vomiting.In clinical applications,it is necessary to balance recovery benefits against potential adverse effects,and take targeted prophylactic measures.