HC视频喉镜与Macintosh喉镜引导气管插管效果的比较

目的 比较HC视频喉镜与Macintosh喉镜引导气管插管的效果.方法 择期全麻患者60例,ASA分级Ⅰ或Ⅱ级,性别不限,年龄18 ～ 64岁,体重指数19 ～ 27 kg/m2,Mallampati分级Ⅰ或Ⅱ级,采用随机数字表法,将其随机分为2组(n=30):HC视频喉镜组(H组)和Macintosh喉镜组(M组).麻醉诱导后分别用HC视频喉镜和Macintosh喉镜引导经口气管插管.记录两组患者声门暴露时间、气管插管时间、Cormack-Lehane分级(用于计算声门暴露满意率)、环状软骨按压情况,观察气管插管并发症的发生情况.结果 与M组比较,H组声门暴露满意率升高,环状软骨按压次数降低(P＜0.05).两组患者声门暴露时间、气管插管时间和气管插管并发症发生率差异无统计学意义(P＞0.05).结论 HC视频喉镜引导气管插管的效果优于Macintosh喉镜.     

Discoscope内窥镜与GlideScope可视喉镜用于声门显露困难患者气管插管效果的比较

目的 比较Discoscope内窥镜与GlideScope可视喉镜用于声门显露困难患者气管插管的效果.方法 择期行经口气管插管的全麻患者40例,Macintosh喉镜显露Cormach-Lehane分级Ⅲ或Ⅳ级,性别不限,年龄24 ～ 78岁,采用随机数字表法,将患者随机分为2组(n=20):GlideScope可视喉镜组(G组)和Discoscope内窥镜组(D组).记录声门显露情况、声门显露时间、气管插管情况、声门显露后至气管导管置入时间和气管插管时间.术后随访患者,记录咽喉出血和咽喉疼痛的发生情况.结果 与G组比较,D组声门显露时间延长,环状软骨按压率降低,声门显露至气管导管置入时间缩短,1次气管插管成功率升高(P＜0.05),1次声门显露成功率、2次声门显露成功率、2次气管插管成功率、气管插管时间、咽喉出血发生率和咽喉疼痛发生率差异无统计学意义(P＞0.05).结论 与GlideScope可视喉镜比较,Discoscope内窥镜用于声门显露困难患者有助于声门的显露,且可提高气管插管的成功机率.     

颈椎手术患者i-gel喉罩辅助纤维支气管镜引导气管插管的效果

目的 评价颈椎手术患者i-gel喉罩辅助纤维支气管镜引导气管插管的效果.方法 择期全麻气管插管的颈椎手术患者40例,ASA分级Ⅰ或Ⅱ级,性别不限,年龄36～62岁,体重57～78 kg,身高165～177 cm,Mallampati分级Ⅰ～Ⅲ级,随机分为2组(n=20):口咽通气道辅助FOB引导气管插管组(O组)和i-gel喉罩辅助FOB引导气管插管组(I组).麻醉诱导后,进行气管插管.记录气管插管时间、纤维支气管镜咽部解剖结构显露分级、气管插管置人情况;记录气管插管期间高血压、心动过速和低氧血症的发生情况;记录拔除喉罩带血和术后咽喉部不良反应的发生情况.结果 i-gel喉罩均1次置入成功,置入时间为(10±3)s,两组气管插管成功率均为100%;与O组比较,I组气管插管时间缩短,1次气管插管成功率升高,纤维支气管镜咽部解剖结构显露分级升高(P＜0.05).两组气管插管期间血液动力学稳定,均未发生高血压和心动过速和低氧血症,I组仅1例喉罩粘血,两组均未见其他不良反应发生.结论 颈椎手术患者i-gel喉罩辅助纤维支气管镜引导气管插管不仅可确保有效的通气,而且可提高引导气管插管成功机率,缩短操作时间.     

HC视频喉镜联合纤支镜引导双腔气管插管的临床应用性研究

目的评估HC视频喉镜联合纤支镜用于双腔支气管(DLT)插管的临床效果及其安全性。方法选择ASAⅠ或Ⅱ级择期需DLT插管后行胸科手术的患者80例。随机分为两组(n=40):视频喉镜组(A组)和直接喉镜组(B组)。A组选用HC视频喉镜行DLT插管到声门下,之后用纤支镜引导行支气管插管。B组选用直接喉镜行DLT支气管插管,然后用纤支镜定位。记录声门显露情况、声门显露时间、声门显露后DLT至声门下时间、支气管插管一次成功率、气道损伤情况。结果与B组相比,A组声门一次性显露成功率增高,声门显露时间和声门显露后DLT至声门下时间缩短,环状软骨按压率降低,支气管插管一次成功率升高,气道损伤减少(P<0.05)。结论 HC视频喉镜联合纤支镜引导DLT插管难度降低,患者不良反应减少,可以安全地应用于DLT插管。     

改良普通喉罩辅助纤维支气管镜气管插管在困难气道患者中的应用

目的观察改良普通喉罩辅助纤维支气管镜(fiberoptic bronchoscope,FOB)气管插管在困难气道患者中的应用效果。方法选择经熟练麻醉医师使用直接喉镜插管2次失败的择期全麻手术患者40例,男21例,女19例,年龄30~55岁,ASAⅠ或Ⅱ级,随机分为两组,每组20例。研究组(LMA-FOB组)将普通喉罩进行改良(剪开喉罩出口栅栏分隔处,剪短通气管),辅助FOB气管插管;对照组(FOB组)经口垫直接使用FOB气管插管。观察咽部解剖结构显露分级,记录一次插管成功率及插管时间,记录拔除喉罩带血和术后咽喉部疼痛、声音嘶哑等不良反应的发生情况。结果与FOB组比较,LMA-FOB组咽部解剖结构显露分级明显提高(Ⅰ/Ⅱ/Ⅲ/Ⅳ级:15/4/1/0vs.8/4/5/3,P0.05),一次插管成功率明显提高(90%vs.60%,P0.05),插管时间明显缩短[(75±20)s vs.(105±25)s,P0.05)]。术后LMA-FOB组仅1例喉罩带血,1例咽部轻微疼痛。结论对可能存在困难气道的患者,采用改良普通喉罩辅助纤维支气管镜引导气管插管可明显提高咽部解剖结构显露分级,提高一次插管成功率,缩短插管时间,术后无明显不良反应,是一种比较安全有效的方法,有一定的临床应用价值。     

视频喉镜在垂体瘤患者气管插管中的应用

目的探讨视频喉镜在垂体瘤患者气管插管中的应用。方法选择择期行全麻垂体瘤手术患者51例,男19例,女32例,年龄18~71岁,ASAⅠ或Ⅱ级。随机将患者分为Macintosh喉镜组(M组,n=25)和视频喉镜组(VL组,n=26)。M组患者气管插管时使用Macintosh喉镜暴露声门,VL组患者使用电子视频喉镜暴露声门。测量患者颈部后仰度、张口度、甲颏距、颈围、下颌支长度、改良Mallampati分级及面罩通气难易程度。记录暴露声门时按压环状软骨的比例、Cormack-Lehane分级、二次插管的比例和插管时间。结果VL组按压环状软骨的比例(7.7%vs48.0%)及Cormack-Lehane分级明显低于M组(P0.01),插管时间明显短于M组[(32.4±11.7)s vs(45.8±12.6)s](P0.01)。结论视频喉镜用于垂体瘤患者气管插管,可显著改善声门暴露,提高插管成功率并缩短插管时间。     

Tosight视频喉镜在Klippel-Feil综合征患儿气管插管中的应用

目的探讨Tosight视频喉镜在Klippel-Feil综合征(KFS)患儿气管插管中的应用效果。方法 20例KFS患儿,年龄4~12岁,ASAⅡ或Ⅲ级,随机均分为两组:Tosight可视喉镜组(T组)和Macintosh喉镜组(M组)。记录喉镜下喉部显露分级(Cormack-Lehane分级)、气管插管时间、气管插管次数、插管成功率和并发症发生情况。结果 T组全部完成气管插管,M组完成6例气管插管。T组气管插管时间明显短于、插管次数明显少于M组(P0.05)。两组患儿均无严重并发症发生。结论 Tosight视频喉镜用于KFS患儿气管插管操作简单,声门暴露清晰,插管成功率高,插管时间短,优于Macintosh喉镜。     

颈椎手术患者喉罩辅助纤维支气管镜引导气管插管的效果

目的 评价颈椎手术患者喉罩辅助纤维支气管镜引导气管插管的效果.方法 择期行前路颈椎手术患者40例,性别不限,年龄18～55岁,体重50～75 kg,ASA分级Ⅰ或Ⅱ级,Mallampatis分级Ⅰ或Ⅱ级.采用随机数字表法,将患者随机分为2组(n=20):纤维支气管镜引导气管插管组(FOB组)和喉罩辅助纤维支气管镜引导气管插管组(LMA组).麻醉诱导后,进行气管插管.记录气管插管时间和气管导管置入情况;记录气管插管期间高血压、心动过速和低氧血症的发生情况;记录LMA组喉罩置入情况、置入时间和拔除气管导管时喉罩移位情况.记录拔除喉罩带血和术后咽喉部不良反应的发生情况.结果 喉罩1次置入成功率为90％,置入时间为(13±3)s.两组气管插管成功率均为100％.与FOB组比较,LMA组气管插管时间缩短,1次气管插管成功率升高(P＜0.05).两组气管插管期间血液动力学稳定,均未发生高血压、心动过速和低氧血症.LMA组气管导管拔除时有8例(40％)发生喉罩移位;拔除喉罩时1例发生喉罩带血;术后1例发生咽部轻微疼痛;两组均未见其它不良反应的发生.结论 颈椎手术患者喉罩辅助纤维支气管镜引导气管插管不仅可确保有效通气,还可提高引导气管插管成功率,明显缩短气管插管时间.     

Airtraq与GlideScope视频喉镜在颈椎制动患者气管插管中的应用

目的 比较Airtraq与GlideScope视频喉镜与普通Macintosh直接喉镜在颈椎制动患者全麻气管插管中的应用效果以及对血流动力学的影响.方法 择期在气管插管全麻下的手术患者90例,ASA Ⅰ或Ⅱ级,年龄18～60岁,随机均分为Airtraq视频喉镜组(A组)、GlideScope视频喉镜(G组)和Macintosh直接喉镜组(M组).麻醉诱导后,采用手法控制稳定方法制动头颈部,分别使用Airtraq视频喉镜、GlideScope视频喉镜、Macintosh直接喉镜经口插管.记录三组声门暴露时间、导管置入时间、试插次数、失败例数、有无助手辅助、镜下Cormark-Lehane (C-L)分级,记录插管前、插管后即刻、插管后1、2、3 min的MAP和HR及不良反应.结果 A组声门暴露时间明显长于M组(P＜0.05);A组和G组的导管置入时间明显短于M组(P＜0.05),G组的插管总时间明显短于M组(P＜0.05).A、G两组需要助手辅助比例、插管失败率及并发症发生率均明显低于M组,C-L分级Ⅰ级患者例数明显多于、Ⅲ级患者例数明显少于M组(P＜0.05).M组插管后即刻和插管后1 min MAP明显高于、HR明显快于插管前(P＜0.05).插管后各时点M组HR均明显快于A组和G组(P＜0.05).结论 与Macintosh直接喉镜比较,Airtraq和GlideScope视频喉镜在颈椎制动患者气管插管中声门暴露良好,降低了插管难度,提高了插管成功率.     

视频喉镜在气道管理中应用的进展

视频喉镜是能够提供上呼吸道间接视野的新型气管插管设备。在困难气道管理处理方面．与直接喉镜相比．视频喉镜能够改善声门显露的Cormack—Lehane分级,并能在较短时间内达到相同或更高的气管插管成功率。尽管视频喉镜可获得非常好的声门显露．但是应用视频喉镜时插入和推进气管导管有时可发生失败。到目前为止,尚无确切证据表明在正常或困难气道患者视频喉镜应取代直接喉镜。     

雾化吸入利多卡因用于颈髓损伤患者纤维支气管镜引导气管插管时表面麻醉的效果

目的 评价雾化吸入利多卡因用于颈髓损伤高位截瘫患者纤维支气管镜(FOB)引导气管插管时表面麻醉的效果.方法 颈椎骨折并发高位截瘫患者64例,随机分为2组(n=32),雾化吸入组:雾化吸入2%利多卡因;喷雾联合环甲膜穿刺组:咽喉部喷雾联合环甲膜穿刺注射2%利多卡因,随后于FOB引导气管插管前15 min,两组均静脉注射咪达唑仑0.01 mg/kg、芬太尼1 μg/kg.FOB引导气管插管期间,评价气管插管条件,监测MAP、HR、ECG及SpO2.结果 与喷雾联合环甲膜穿刺组相比,雾化吸入组气管插管条件满意率和FOB引导气管插管成功率明显提高,心律失常及不良记忆发生率明显降低(P＜0.05).结论 颈髓损伤高位截瘫患者雾化吸入2%利多卡因表面麻醉,有助于改善FOB引导气管插管的条件,且降低不良反应的发生.     

OSAS患者纤维支气管镜辅助下快诱导经口与慢诱导经鼻气管插管效果的比较

目的 比较阻塞性睡眠呼吸暂停综合征(OSAS)患者纤维支气管镜(FOB)辅助下快诱导经口与慢诱导经鼻气管插管的效果.方法 择期行悬雍垂腭咽成形术的OSAS合并高血压患者40例,ASAⅡ级,年龄38～64岁,体重82～123 kg,张口度大于2.5 cm,Mallampatis分级Ⅲ或Ⅳ级,随机分为Ⅰ组和Ⅱ组(n=20),分别采用FOB辅助下慢诱导经鼻气管插管和快诱导经口气管插管.于麻醉诱导后即刻和气管插管后即刻记录MAP和HR;记录两组气管插管时间、气管插管成功情况和气管插管期间心动过速、高血压及心肌缺血的发生情况,以及耳鼻喉科医师对气道管理的满意情况.结果 40例患者使用FOB气管插管均成功,Ⅰ组5例气管插管失败,改为Ⅱ组方法 后均首次气管插管成功,Ⅱ组气管插管均成功;与Ⅰ组比较,Ⅱ组气管插管成功率升高,麻醉诱导后HR和MAP降低,气管插管期间心动过速、高血压及心肌缺血发生率降低,耳鼻喉科医师满意率升高(P(0.05);Ⅰ组有4例气管拔管后出现鼻出血.结论 在FOB辅助下,与慢诱导经鼻气管插管比较,OSAS患者采用快诱导经口气管插管时应激反应小,气管插管成功机率高,可避免气道损伤.     

A comparative study of hemodynamic responses to orotracheal intubation with fiberoptic bronchoscope and laryngoscope in children

BACKGROUND: The purposes of this study were to further identify the hemodynamic responses to orotracheal intubation in children, using a fiberoptic bronchoscope (FOB) and a direct laryngoscope (DLS), and to validate whether the FOB can attenuate the hemodynamic response to orotracheal intubation compared with the DLS. METHODS: Forty-three children, ASA PS I-II scheduled for elective plastic surgery under general anesthesia requiring orotracheal intubation were randomly allocated to either the DLS group (n = 20) or the FOB group (n = 23). Noninvasive systolic blood pressure (SBP) and heart rate (HR) were recorded before (baseline values) and after anesthesia induction (postinduction values), at intubation and every minute for the first 5 min after intubation. The maximal values of SBP and HR during the observation were also recorded. The product of HR and SBP [rate pressure product (RPP)] at each time point was calculated. RESULTS: In the DLS group, SBP, HR, and RPP at intubation and 1 min after intubation were significantly higher than postinduction values, but did not exceed baseline values. In the FOB group, SBP, HR, and RPP at intubation increased significantly compared with baseline and postinduction values. In the two groups, the maximal values of SBP, HR, and RPP during the observation were significantly higher than baseline values. Except for the HR at intubation, there were no significant differences in other hemodynamic parameters during the observation and the time required to reach maximal values of SBP, HR, and RPP between the two groups. CONCLUSIONS: Orotracheal intubation using FOB and DLS in children may cause similar increases in SBP and HR. Compared with the DLS, the FOB had no advantage in attenuating the hemodynamic responses to orotracheal intubation.     

The Glidescope system: a clinical assessment of performance

The Glidescope is a new videolaryngoscope. It has a digital camera incorporated in the blade which displays a view of the vocal cords on a monitor. This allows the placement of a tracheal tube to be visualised. We describe its performance in 50 patients who required orotracheal intubation for elective surgery. Two investigators performed 25 intubations each. Intubation with the Glidescope was successful in 47 of the 50 cases. The three failures occurred early in the series and were attributed to the initial learning curve. The success rate after the first eight patients in each series was 100%. The median (IQR [range]) time to intubation was 40 (30-55 [15-105]) s. The Glidescope provided a grade I view of the glottis in 44 cases and a grade II view in six cases. The view of the larynx was improved in almost half (23) of the cases. The Glidescope improved the view by one grade in 22 and by two grades in one patient. We conclude that the Glidescope is an effective device for tracheal intubation and provides an improved view of the larynx. Further clinical studies are necessary to evaluate its role in airways that are difficult to manage.     

预期困难气道患者喉罩辅助纤维支气管镜引导气管插管的研究

目的 探讨在预期困难气道患者中采用喉罩辅助纤维支气管镜(fiberoptic bronchoscope,FOB)引导气管插管的应用价值. 方法 择期经口气管插管全身麻醉手术预测困难气道患者24例,ASA Ⅰ或Ⅱ级,入选患者达到以下1种或几种条件为预期困难气道:1.5 cm＜张口度＜3 cm,甲颏间距＜6 cm,头颈活动度＜80°,Mallampati分级Ⅲ、Ⅳ级.采用随机数字表法分为喉罩辅助FOB组(F组)和直接喉镜组(L组),每组12例.F组采用喉罩辅助FOB引导下气管插管;L组在直接喉镜暴露下经口气管插管,3次试插未成功者改行F组方法试插.记录两组患者的气道评估情况、气管插管前(基础值)和插管后3 min的MAP和HR、成功插管的次数及术后的并发症的发生情况. 结果 插管前两组气道评估差异无统计学意义(P＞0.05).与插管前相比,L组患者插管后MAP和HR显著增加,差异有统计学意义(P＜0.05).两组插管后的MAP和HR比较,差异有统计学意义(P＜0.05).F组气管插管一次成功率为75％,3次以内插管合计总成功率为100％;L组气管插管一次成功率为25％,3次以内插管合计总成功率为50％;6例L组患者直接喉镜3次插管不成功后改为喉罩辅助FOB插管,2例1次成功,4例2次成功;F组一次插管成功率和3次插管总成功率均显著高于L组,两组比较差异有统计学意义(P＜0.05).与L组插管时间(161±26)s比较,F组插管时间(81±9)s明显缩短,差异有统计学意义(P＜0.05).F组有2例术后轻度咽喉疼痛,L组有6例术后咽喉疼痛明显和轻度声嘶、2例轻度咽痛. 结论 对术前预期为困难气道的患者采用喉罩辅助FOB引导气管插管可显著提高插管的成功率,降低直接喉镜反复试插引起的术后并发症,具有一定的临床应用价值.     

Lightwand tracheal intubation with and without muscle relaxation

BACKGROUND: Lightwand tracheal intubation is a suitable technique for patients who are difficult to intubate but who are receiving effective ventilation. The effect of muscle relaxants on the efficacy of lightwand intubation has not yet been evaluated. The authors conducted a prospective, double-blind, placebo-controlled study to assess the effectiveness and incidence of complications of lightwand tracheal intubation performed during general anesthesia with and without the use of a muscle relaxant in patients with apparently normal airway anatomy. METHODS: One hundred seventy-six patients who required orotracheal intubation were prospectively included. Anesthesia was administered using propofol (2 mg/kg, then 3 mg . kg (-1). h(-1)) and remifentanil (1 microg/kg, then 0.3 microg . kg(-1) . min(-1)). Patients were randomly assigned to one of two groups (n = 88 for each) to receive rocuronium 0.6 mg/kg or saline intravenously. Lightwand orotracheal intubation (Trachlight; Laerdal Medical Inc., Armonk, NY) was attempted after 3 min. The authors recorded the number of successful intubations, the number of attempts and their duration, and events during the procedure. RESULTS: The failure rate of lightwand intubation was 12% in the placebo group and 2% in the rocuronium group (P = 0.021). Patients in the placebo group received more multiple intubation attempts (P < 0.001), required a greater intubation time (77 +/- 65 vs. 52 +/- 31 s; P = 0.002) and experienced a greater incidence of events during intubation (61 vs. 0%; P < 0.001) than patients in the rocuronium group. CONCLUSIONS: The use of muscle relaxants in patients with apparently normal airways is associated with a lower failure rate, decreased intubation time, and fewer attempts when performing lightwand orotracheal intubation.     

光棒与纤维支气管镜用于强直性脊柱炎困难气道气管插管的比较

目的 比较光棒(light wand,LW)与纤维支气管镜(fiberoptic bronchoscope,FOB)用于强直性脊柱炎患者的困难气道行气管插管的应用效果.方法 选择62例行择期手术的强直性脊柱炎患者,随机分为LW引导气管插管组(LW组,n=32)和FOB引导气管插管组(FOB组,n=30),经口行气管插管,记录插管时间、成功率,评估血流动力学及插管相关并发症.结果 LW组患者气管插管时间明显短于FOB组(P＜0.01),在插管成功率、气管插管相关并发症及血流动力学变化等方面,两组之间差异无统计学意义(P＞0.05).结论 LW和FOB均可用于强直性脊柱炎患者困难气道的气管插管,成功率高,并发症少,对血流动力学影响轻微,而LW操作更为简单,并能缩短气管插管时间.     

Teaching the use of fiberoptic intubation in anesthetized patients

BACKGROUND : Fiberoptic bronchoscope (FOB)-guided intubation is an important and useful technique for unanticipated difficult airway in anesthetized patients. However, many staff anesthesiologists seemed to find it difficult to perform. We speculated that it was because they had not been well trained in the technique. We worked out an easy method for FOB-guided intubation. We had our residents try our method and measured the elapsed time in introducing FOB from the mouth to the tracheal carina. METHODS : After IRB approval and having obtained informed consent, we enrolled twenty residents with experience of two to four years and twenty patients scheduled for thoracic surgery. After induction of anesthesia, we inserted a Berman airway and let the residents try to introduce FOB from the mouth to the tracheal carina. Staff anesthesiologists gave verbal advises only by watching the video image and we measured the elapsed time. RESULTS : The elapsed time was 83+/-43 sec (mean+/-SD). Although three residents required interruptions for ventilation during their trials, they were able to accomplish their missions in their second or third attempt. In all cases, Sp02 was kept at 100% throughout the trials. CONCLUSIONS : We showed that our method helped anesthesiologists to master FOB-guided intubation.