Importance:When a ProSeal laryngeal mask airway(PLMA)is removed with the child in a deep plane of anesthesia,the upper airway muscle tone and protective upper airway reflexes may be obtunded.Objective:To determine whe...Importance:When a ProSeal laryngeal mask airway(PLMA)is removed with the child in a deep plane of anesthesia,the upper airway muscle tone and protective upper airway reflexes may be obtunded.Objective:To determine whether the supine or lateral position is safer for the removal of a PLMA in deeply anesthetized children by comparing the incidence of upper airway complications.Methods:This randomized single-blind comparative trial was conducted at a tertiary care hospital between January 2020 and September 2020.Forty children of the American Society of Anesthesiologists class I/II of ages 1–12 years age undergoing surgery under general anesthesia with PLMA used as the definitive airway device were recruited.Patients were randomly allocated to lateral group or supine group for PLMA removal in a deep plane of anesthesia in the lateral or supine position.The primary outcome was the number of patients experiencing one or more upper airway complications and the secondary outcomes were incidence of individual respiratory adverse effects and of severe airway complications.Results:The incidence of airway complications was 30%in the supine group and 20%in the lateral group(P=0.6641).Incidence of laryngospasm,immediate stridor,and excessive secretions were similar.Early stridor and oxygen desaturation were higher in the supine group(P=0.0374,P=0.0183 respectively).Interpretation:The overall incidence of upper airway complications was similar with the removal of a PLMA in the supine or lateral position in deeply anesthetized children.The incidence of oxygen desaturation and stridor were higher with PLMA removal in the supine as compared to the lateral position.展开更多
Background Intubating laryngeal mask airway （ILMA） offers a new approach for orotracheal intubation and is expected to produce less cardiovascular stress responses. However, the available studies provide inconsisten...Background Intubating laryngeal mask airway （ILMA） offers a new approach for orotracheal intubation and is expected to produce less cardiovascular stress responses. However, the available studies provide inconsistent results. The purpose of this study was to identify whether there is a clinically relevant difference in hemodynamic responses to orotracheal intubation by using ILMA and direct laryngoscope （DLS）. Methods A total of 53 adult patients, ASA physical status I-II, scheduled for elective plastic surgery under general anesthesia requiring the orotracheal intubation, were randomly allocated to either DLS or ILMA groups. After a standard intravenous anesthesia induction, orotracheal intubation was performed. Noninvasive blood pressure and heart rate were recorded before （baseline values） and after anesthesia induction （post-induction values）, at intubation and every minute for the first 5 minutes after intubation. The data were analyzed using Chisquare test, paired and unpaired Student＇s t test, and repeated-measures analysis of variance as appropriate. Results The mean intubation time in the ILMA group was longer than that in the DLS group （P〈0.05）. The blood pressure and heart rate increased significantly after intubation in the two groups compared to the postinduction values （P〈0.05）, but the maximum value of blood pressure during the observation did not exceed the baseline value, while the maximum value of heart rate was higher than the baseline （P〈0.05）. During the observation, there were no significant differences in blood pressure and heart rate among each time point and in the maximum values between the two groups. Conclusions Orotracheal intubations by using ILMA and DLS produce similar hemodynamic response. ILMA has no advantage in attenuating the hemodynamic responses to orotracheal intubation compared with DLS.展开更多
Objective:To observe the feasibility and safety of awake anesthesia for tumor excisions in pa- tients with brain tumors involving cerebral functional areas.Methods:Fifty patients with brain tumors in- volving cerebral...Objective:To observe the feasibility and safety of awake anesthesia for tumor excisions in pa- tients with brain tumors involving cerebral functional areas.Methods:Fifty patients with brain tumors in- volving cerebral functional areas,ASAⅠ-Ⅱgrade,were enrolled in this study.Propofol and remifentanil were used for total intravenous anesthesia,and a laryngeal mask airway(LMA)was inserted for the air- way opening and synchronized intermittent mandatory ventilation(SIMV).At the surgeon's request for an intraoperative wake-up test,the propofol infusion was stopped advance of 10-15 min,the remifentanil in- fusion rate was decreased to 0.050-0.075μg/kg from 0.10-0.20μg/kg per min for easing surgical pain. The LMA was removed until the patient awakened.The anesthesiologist then kept up an on-going neuro- logical examination.After that,anesthesia was re-deepened and LMA was re-inserted until the whole surgery was accomplished.Results:Forty-six of 50 patients(92%)were successfully awakened and 4 (8%)failed to complete the intraoperative wake-up test because of dyspnea,over-sedation,or severe hy pertension.No severe complications occurred during the whole process.Conclusions:During the awake anesthetic period,the intraoperative wake-up test combined with navigation,evoked potential and ultra- sound techniques can help surgeons excise maximumly and precisely the brain tumors near to or in the functional areas.展开更多
目的:评估保留自主呼吸的喉罩全麻在单孔胸腔镜下肺叶切除术中应用的可行性。方法:喉罩组与双腔支气管组各20例肺占位行胸腔镜肺叶切除术淋巴结清扫术患者。两组均行肋间神经阻滞,术中喉罩组不使用肌松药,保留自主呼吸;双腔管组使用肌松...目的:评估保留自主呼吸的喉罩全麻在单孔胸腔镜下肺叶切除术中应用的可行性。方法:喉罩组与双腔支气管组各20例肺占位行胸腔镜肺叶切除术淋巴结清扫术患者。两组均行肋间神经阻滞,术中喉罩组不使用肌松药,保留自主呼吸;双腔管组使用肌松药,术中行单肺通气。结果:喉罩组与双腔管组在手术时间、术中最低SpO_2、术前、术后1 h PaCO_2无明显差异。喉罩/双腔管放置满意用时、拔管时间、恢复室停留时间、术后住院时间喉罩组均短于双腔管组。插喉罩/双腔管前后,△MAP、△HR喉罩组低于双腔管组。术中每千克体重舒芬太尼、丙泊酚用量喉罩组显著少于双腔管组。肺叶切除后血气PaCO_2、术中最高PETCO_2,喉罩组显著高于双腔管组。术后咽喉痛发生率、住院总费用喉罩组低于双腔管组。结论:保留自主呼吸的喉罩全麻用于胸腔镜肺叶切除术具有明显优势。展开更多
文摘Importance:When a ProSeal laryngeal mask airway(PLMA)is removed with the child in a deep plane of anesthesia,the upper airway muscle tone and protective upper airway reflexes may be obtunded.Objective:To determine whether the supine or lateral position is safer for the removal of a PLMA in deeply anesthetized children by comparing the incidence of upper airway complications.Methods:This randomized single-blind comparative trial was conducted at a tertiary care hospital between January 2020 and September 2020.Forty children of the American Society of Anesthesiologists class I/II of ages 1–12 years age undergoing surgery under general anesthesia with PLMA used as the definitive airway device were recruited.Patients were randomly allocated to lateral group or supine group for PLMA removal in a deep plane of anesthesia in the lateral or supine position.The primary outcome was the number of patients experiencing one or more upper airway complications and the secondary outcomes were incidence of individual respiratory adverse effects and of severe airway complications.Results:The incidence of airway complications was 30%in the supine group and 20%in the lateral group(P=0.6641).Incidence of laryngospasm,immediate stridor,and excessive secretions were similar.Early stridor and oxygen desaturation were higher in the supine group(P=0.0374,P=0.0183 respectively).Interpretation:The overall incidence of upper airway complications was similar with the removal of a PLMA in the supine or lateral position in deeply anesthetized children.The incidence of oxygen desaturation and stridor were higher with PLMA removal in the supine as compared to the lateral position.
文摘Background Intubating laryngeal mask airway （ILMA） offers a new approach for orotracheal intubation and is expected to produce less cardiovascular stress responses. However, the available studies provide inconsistent results. The purpose of this study was to identify whether there is a clinically relevant difference in hemodynamic responses to orotracheal intubation by using ILMA and direct laryngoscope （DLS）. Methods A total of 53 adult patients, ASA physical status I-II, scheduled for elective plastic surgery under general anesthesia requiring the orotracheal intubation, were randomly allocated to either DLS or ILMA groups. After a standard intravenous anesthesia induction, orotracheal intubation was performed. Noninvasive blood pressure and heart rate were recorded before （baseline values） and after anesthesia induction （post-induction values）, at intubation and every minute for the first 5 minutes after intubation. The data were analyzed using Chisquare test, paired and unpaired Student＇s t test, and repeated-measures analysis of variance as appropriate. Results The mean intubation time in the ILMA group was longer than that in the DLS group （P〈0.05）. The blood pressure and heart rate increased significantly after intubation in the two groups compared to the postinduction values （P〈0.05）, but the maximum value of blood pressure during the observation did not exceed the baseline value, while the maximum value of heart rate was higher than the baseline （P〈0.05）. During the observation, there were no significant differences in blood pressure and heart rate among each time point and in the maximum values between the two groups. Conclusions Orotracheal intubations by using ILMA and DLS produce similar hemodynamic response. ILMA has no advantage in attenuating the hemodynamic responses to orotracheal intubation compared with DLS.
文摘Objective:To observe the feasibility and safety of awake anesthesia for tumor excisions in pa- tients with brain tumors involving cerebral functional areas.Methods:Fifty patients with brain tumors in- volving cerebral functional areas,ASAⅠ-Ⅱgrade,were enrolled in this study.Propofol and remifentanil were used for total intravenous anesthesia,and a laryngeal mask airway(LMA)was inserted for the air- way opening and synchronized intermittent mandatory ventilation(SIMV).At the surgeon's request for an intraoperative wake-up test,the propofol infusion was stopped advance of 10-15 min,the remifentanil in- fusion rate was decreased to 0.050-0.075μg/kg from 0.10-0.20μg/kg per min for easing surgical pain. The LMA was removed until the patient awakened.The anesthesiologist then kept up an on-going neuro- logical examination.After that,anesthesia was re-deepened and LMA was re-inserted until the whole surgery was accomplished.Results:Forty-six of 50 patients(92%)were successfully awakened and 4 (8%)failed to complete the intraoperative wake-up test because of dyspnea,over-sedation,or severe hy pertension.No severe complications occurred during the whole process.Conclusions:During the awake anesthetic period,the intraoperative wake-up test combined with navigation,evoked potential and ultra- sound techniques can help surgeons excise maximumly and precisely the brain tumors near to or in the functional areas.
文摘目的:评估保留自主呼吸的喉罩全麻在单孔胸腔镜下肺叶切除术中应用的可行性。方法:喉罩组与双腔支气管组各20例肺占位行胸腔镜肺叶切除术淋巴结清扫术患者。两组均行肋间神经阻滞,术中喉罩组不使用肌松药,保留自主呼吸;双腔管组使用肌松药,术中行单肺通气。结果:喉罩组与双腔管组在手术时间、术中最低SpO_2、术前、术后1 h PaCO_2无明显差异。喉罩/双腔管放置满意用时、拔管时间、恢复室停留时间、术后住院时间喉罩组均短于双腔管组。插喉罩/双腔管前后,△MAP、△HR喉罩组低于双腔管组。术中每千克体重舒芬太尼、丙泊酚用量喉罩组显著少于双腔管组。肺叶切除后血气PaCO_2、术中最高PETCO_2,喉罩组显著高于双腔管组。术后咽喉痛发生率、住院总费用喉罩组低于双腔管组。结论:保留自主呼吸的喉罩全麻用于胸腔镜肺叶切除术具有明显优势。
