Novel flangeless video laryngoscope for limited mouth opening

Airway management plays a crucial role in providing adequate oxygenation and ventilation to patients during various medical procedures and emergencies.When patients have a limited mouth opening due to factors such as trauma,inflammation,or anatomical abnormalities airway management becomes challenging.A commonly utilized method to overcome this challenge is the use of video laryngoscopy(VL),which employs a specialized device equipped with a camera and a light source to allow a clear view of the larynx and vocal cords.VL overcomes the limitations of direct laryngoscopy in patients with limited mouth opening,enabling better visualization and successful intubation.Various types of VL blades are available.We devised a novel flangeless video laryngoscope for use in patients with a limited mouth opening and then tested it on a manikin.

Curative effect of surgical treatment of vocal cord polyp under self-retaining fibrolaryngoscope and fibrolaryngoscope

Objective:To evaluate the curative effect of surgical treatment of vocal cord polyp under self-retaining fibrolaryngoscope and fibrolaryngoscope.Methods: A total of 118 patients with vocal cord polyp who received surgical treatment in our hospital between August 2013 and August 2015 were included in the study, the treatment process was retrospectively analyzed, and according to different operation methods, patients were divided into observation group (n=61) who received surgical treatment under self-retaining fibrolaryngoscope and control group (n=57) who received surgical treatment under fibrolaryngoscope. Differences in voice electroglottography parameters, oxidative stress system indexes, trauma-related indexes and so on were compared between two groups of patients 2 weeks after operation.Results:Jitter, Shimmer and NNE levels of observation group were significantly lower than those of control group while HNR and SNR levels were significantly higher than those of control group;SOD T, SOD Cu-Zn and T-AOC content in serum of observation group were significantly higher than those of control group while H2O2 and AOPP content were significantly lower than those of control group;NPY,β-EP, PGI2, HMGB-1 and HSP72 content in serum of observation group were significantly lower than those of control group.Conclusions:Surgery under self-retaining fibrolaryngoscope can better realize the accurate resection of vocal cord polyp, protect the normal vocal cord function and also reduce the body trauma, and it is a more ideal way of surgery.

A Comparative Study on the Close Reduction of Arytenoid Dislocation under Indirectand Direct Laryngoscope

To assess the curative effects of different reduction techniques on the dislocation of cricoarytenoid joint caused by intubation,indirect laryngoscope (IL ) and direct laryngoscope (DL ) were utilized for the closed reduction of the displaced arytenoid under local anesthesia.2 3patients who underwent the reduction for dislocated arytenoid under IL or DL from January1991to June 2 0 0 1were reviewed.The data were collected on the duration of the laryngeal injury,tim es of re- ceiving reduction,side- effects after the treatment and the period for voice to return to normal. The relationship between the duration of the laryngeal lesion and the period of the voice rehabilita- tion was examined.13patients received the reduction under IL and 10 patients under DL .Except the tim es of the reduction,which showed significant difference,no differences were found between IL group and DL group in the course and the period of voice rehabilitation,as well as sore throat after the manipulation.The patients'voice recovery was positively related to their course of dis- ease in both IL and DL group.Itis concluded thatthe recovery of normal voice is obviously affect- ed by the duration of arytenoid dislocation.The reduction under IL is as effective as under DL in the treatment of arytenoid dislocation.Reduction by DL is better suit the patients with long tim e course of disease.

Comparison of postoperative sore throat following laryngoscopy conducted by Miller and Macintosh laryngoscope blades

BACKGROUND: Post operative sore throat (PST) is one of the most common complaints after tracheal intubation. In this study we compared the effects of curved and straight laryngoscope blades on severity and incidence of PST. METHOD: In this prospective randomized clinical trial we evaluated incidence and severity of PST in 147 ASA physical status I–II, aged 18 – 62 y (group Miller, n = 71), (group Macintosh, n = 76) following intubation with Miller and Macintosh laryngoscope blades by using Visual Analog Scale (VAS). RESULTS: The overall incidence of PST in our study was 35.4% (Macintosh group = 39.5% and in Miller group = 31% and P = 0.829). The incidence of PST was not statistically different between two kinds of laryngoscope blades and the mean rank of pain score was not statistically different in recovery room and up to 48 hours after surgery. CONCLUSIONS: Our study showed these types of laryngoscope blade had not association with incidence and severity of PST. .

Comparison of Airtraq optical laryngoscope and Storz video laryngoscope in a cadaver model

BACKGROUND： Airway management in the emergency department is a critical intervention that requires both standard techniques and rescue techniques to ensure a high rate of success. Recently, video laryngoscope （VL） systems have become increasingly common in many large urban EDs, but these systems may exceed the budgets of smaller rural EDs and EMS services and the Airtraq optical laryngoscope （OL） may provide an effective, low-cost alternative. We hypothesized that laryngeal view and time to endothracheal tube placement for OL and VL intubations would not be significantly different. METHODS：This was a prospective, crossover trial. Setting： University-based emergency medicine residency program procedure laboratory utilizing lightly embalmed cadavers. Subjects： PGY1-3 emergency medicine residents. The study subjects performed timed endotracheal intubations alternately using the OL and VL. The subjects then rated the Cormack-Lehane laryngeal view for each device. Statistical analysis： Mean time to intubation and the mean laryngeal view score were calculated with 95% confidence intervals and statistical significance was determined by Student＇s t test. RESULTS：Fourteen subjects completed the study. The average laryngeal view achieved with the OL vs. the VL was not significantly different, with Cormack-Lehane grade of 1.14 vs. 1.07, respectively. Time to endotracheal intubation, however, was significantly different （P〈0.001） with the average time to intubation for the OL 25.49 seconds （95% CI： 17.95-33.03） and the VL 13.41 seconds （10.27-16.55）. CONCLUSION：The Airtraq OL and the Storz VL yielded similar laryngeal views in the lightly embalmed cadaver model. Time to endotracheal tube placement, however, was less for the VL.

Change in management of predicted difficult airways following introduction of video laryngoscopes

AIM To determine if video laryngoscopy(VL) has significantly impacted management of difficult airways by decreasing the rate of awake fiberoptic intubation(FOI). METHODS Anesthetic records of 3723 patients who underwent general anesthesia at Rush University Medical Center were reviewed over a 2-mo period prior to the introduction of VLs in 2009("pre-VL" group) and over the same 2-mo period after the introduction of VLs in 2012("postVL" group). Patient records with predicted difficult air-ways based on pre-operative airway examination were analyzed. The primary outcome was rate of awake FOI.RESULTS To control for possible factors that may influence the FOI rate, a logistic regression was performed with these factors included as covariates. The rate of awake FOI was 13.1% in pre-VL group compared to 9.0% in post-VL group. Although this decrease was not statistically significant individually(P = 0.1768), it showed a trend toward significance when covariates were accounted for(P = 0.0910). Several factors predicting a higherlikelihood of awake FOI were found to be statistically significant: Morbid obesity(larger BMI P = 0.0154, OR = 1.5 per 10 point BMI increase), male gender(P = 0.0026, OR = 3.0) and a higher el-Ganzouri airway score(P = 0.0007, OR = 1.5). Although VLs were seen to be used to intubate 51% of predicted difficult airways, the rate of awake FOI has not significantly changed.CONCLUSION Although VL may continue to grow in popularity, the most difficult airways are still managed using awake FOI.

Optical design and simulation of an integrated OCT and video rigid laryngoscope

An integrated optical coherence tomography(OCT)and video rigid laryngoscope have been designed to acquire surface and subsurface tissue images of larynx simultaneously.The dual-modality system that is based on a common-path design with components as few as possible effec-tively maintains the light transmittance without compromising the imaging quality.In this paper,the field of view(FOV)of the system can reach 70°by use of a gradient index(GRIN)lens as the relay element and a four-lens group as the distal objective,respectively.The simulation showed that the modulation transfer function(MTF)value in each FOV of the rigid video endoscope at 160 lp/mm is greater than 0.1 while the root mean square(RMS)radii of the OCT beam in the center and edge of the FOV are 14.948μm and 73.609μm,respectively.The resolutions of both OCT and video endoscope meet the requirement of clinical application.In addition,all the components of the system are spherical,therefore the system can be of low cost and easy to assemble.

Use of McGrath^(■) MAC Video Laryngoscope for Nasotracheal Intubation in Patients for Whom Intubation Was Expected to Be Difficult Due to the Limited Mouth Opening

McGrath? MAC video laryngoscope (McG) has been used for orotracheal intubation in both normal patients and patients for whom intubation was expected to be difficult, and has been reported to provide improved visibility of the glottis during tracheal intubation. There are some reports that normal nasotracheal intubation is easier with McG than with macintosh laryngoscope (ML). The usefulness of McG for nasotracheal intubation is beginning to be recognised. We experienced three cases using McG in patients for whom intubation was expected to be difficult due to the limited mouth opening and using McG for those patients enabled smooth nasotracheal intubation. McG provides good visual field during nasotracheal intubation, and is less invasive to the patient.

A comparison of GlideScope videolaryngoscope with Macintosh laryngoscope for laryngeal views

Objective：To describe the use of the GlideScope in comparison with direct laryngoscopy for elective surgical patients requiring tracheal intubation. Methods：Two hundred patients, ASA Ⅰ - Ⅱ scheduled for elective surgery under general anesthesia requiring orotracheal intubation were selected. Information was collected identifying the patient demographics and airway assessment features （Mallampati oropharyngeal scale, thyromenta distance and mouth opening）. In a random crossover design, after induction of anesthesia and neuromuscular block, the laryngoscopes were inserted in turn, and the views of the glottis at laryngoscopy （Cormack and Lehane scores） were compared. The tracchea was intubated using either the standard Macintosh laryngoscope or GlideScope after the second grading at laryngoscopy was done. Complications associated with intubating were recorded. Results： There were 200 patients including 107 males and 93 females, with mean age being 52±13 years, height 164.8±11.3 cm, weight 64.0±11. 5 kg, thyromental distance 6. 9± 1.1 cm, and mouth opening 5.7±0.5 cm. There was a significant association between the preoperative view of the oropharynx （Mallampati score） and the view of the glottis at laryngoscopy for both the direct Macintosh laryngoscope （P〈0. 001） and the GlideScope （P〈0. 001）. Among 200 patients, 106 patients had the same C＆L grade, 91 of remaining patients showed improvement in the C＆L grade （P〈0. 001 ） obtained with GlideScope compared with the direct Macintosh laryngoscope. 3 of remaining patients showed better view of the glottis（C＆L grade） with the direct Macintosh laryngoscope （grade 1） than with GlideScope （grade 2）. There were no cases of failure to be intubated. There were no cases of dental or mucosal injury in all patients. Conclusion： GlideScope videolaryngoscope yielded comparable or superior laryngeal view compared with Macintosh laryngoscope. The new type of laryngoscope may have potential advantages for managing the difficult airway.

Peripheral Neuropathy after Open Abdominal Surgery with Self-Retaining Retractors. A Systematic Review of Randomised and Non-Randomised Clinical Trials

Objectives : A systematic review was undertaken to evaluate the effectiveness of incision retention available to surgeons conducting open abdominal or pelvic surgeries. Both the ability of the retractor to retain the wound and harm to the patient due to the retractor were reviewed. Methods : A search was conducted using the following databases: EMBASE, PubMed, BIOSIS, Engineering Village, Web of Science, Best practice, Science Direct, CRCnet BASE, Proquest, Wiley Online Library, and Comprehensive Biomaterial. Results : What the articles found were then narrowed down to those which matched the objective of the review. This resulted in ten articles to review. Two reviewers reviewed and summarized the articles. Femoral neuropathy was found to be a common complication due to Retractors. Other outcomes analysed or studied were found to be infected, postoperative pain and exposure provided. Femoral neuropathy can be estimated to occur at a rate between 2.6% and 7.5% in open pelvic and abdominal surgeries. The Alexis O-ring retractor was found to lower the required morphine intake following surgery when compared to the Belfour retractor. Conclusions : There is a lack of high quality/high levels of evidence studies that have been conducted on Retractors. Femoral neuropathy is the outcome most commonly documented in relation to Retractors. Surgeons need to be aware about the use and implementations of the retractors. Care should be taken in protecting the blades and during long surgery relocating retractors should be considered.

A Comparative Study between Intravenous Fentanyl and Intravenous Lidocaine on Attenuation of Hemodynamic Pressor Responses to Laryngoscopic Intubation: A Prospective Cohort Study, Ethiopia

Introduction: Laryngoscopic intubation is an insertion of endotracheal tube into the trachea for maintenance of airway during general anesthesia. Smooth intubation requires attenuation of pressor responses and maintenance of baseline hemodynamic stability. The primary outcome of this study is to compare intravenous fentanyl and lidocaine as an anesthetics adjuvant on attenuation of hemodynamic pressor responses to Laryngoscopic intubation in elective surgical adult patients. Methods: This prospective cohort study recruits 114 patients who underwent elective surgery under general anesthesia with laryngoscopy and endotracheal tube intubation. The study was conducted from January 1, 2018 to March 30, 2018. Systemic random sampling technique was used to select the study participants. Those patients that received intravenous fentanyl 2 micrograms per kilogram three minutes before intubation as an anesthetics adjuvant are considered as Fentanyl-group (group F). The Lidocaine-group (group L) was those patients who receive 2% intravenous lidocaine 1.5 milligrams per kilogram three minutes before intubation as anesthetics adjuvant. Hemodynamic parameters (heart rate and blood pressure) and other variables were documented starting from 3 minutes before intubation to 5 minutes after intubation. Results: The mean heart rate at first minute after intubation was significantly lower in fentanyl group (98.91 ± 15.6 beats per minute (bpm)) compared to lidocaine (107 ± 15.45 bpm), t (112) = 2.8, p = 0.006. Systolic blood pressure was also significantly lower in fentanyl group (141.9 ± 18.9 millimeters of mercury (mmHg)) compared to lidocaine (150 ± 18.098 mmHg), t (112) = 2.45, p = 0.016 at first minute after intubation. At third minute after intubation, heart rate was significantly lower in fentanyl group compared to lidocaine, t (112), p = 0.037. No difference was in heart rate and blood pressure among the group at 5th minute after intubation (p > 0.05). Conclusion and Recommendations: Fentanyl was better on attenuation of hemodynamic pressor responses to laryngoscopic intubation when compared to lidocaine. Therefore, using fentanyl pre-operatively to attenuate pressor responses especially during intubation is important.

视可尼喉镜在引导经鼻气管插管中的临床应用

目的探讨视可尼喉镜(Shikani optical stylet,SOS)在引导经鼻气管插管中的应用效果。方法回顾性分析我院2017年1月~2022年12月60例经鼻气管插管全身麻醉择期手术的临床资料,按照经鼻气管插管的引导方式分为3组,每组20例:视频喉镜引导气管插管(V组),纤维支气管镜引导气管插管(F组)和SOS引导气管插管(S组)。比较3组患者气管插管过程中喉部显露分级、鼻出血情况、气管插管成功率、完成时间和术后气管插管并发症的发生情况。结果F、S组患者喉显露分级均为Ⅰ级,V组患者喉显露分级Ⅰ级7例、Ⅱ级10例、Ⅲ级3例,F、S组患者喉显露效果明显优于V组(Z=-4.274,P=0.000;Z=-4.274,P=0.000)。F、S组患者无鼻出血分别为15、14例,轻度分别为5、6例,均无患者发生重度鼻出血,V组患者无鼻出血7例,轻度10例,重度3例,F、S组患者鼻出血的程度明显轻于V组(Z=-2.678,P=0.007;Z=-2.402,P=0.016)。S组患者气管插管完成中位时间37.5(34.3,41.5)s,显著短于V组45.0(39.8,72.5)s和F组89.0(76.0,102.5)s(Z=15.703,P=0.013;Z=32.050,P=0.000),V组明显短于F组(Z=-16.347,P=0.009)。V组2例插管失败,F和S组患者均顺利完成气管插管,3组插管成功率差异无统计学意义(P>0.05)。3组患者术后鼻咽部疼痛、鼻塞发生率差异无统计学意义(P>0.05)。结论SOS引导经鼻气管插管可以提供良好的喉显露,气管插管成功率满意且不增加不良反应发生率,可视为一种安全而有效的经鼻气管插管方式。

视频喉镜结合综合困难气道训练考核系统在急诊规范化培训住院医师气管插管培训中的应用研究

目的探讨视频喉镜结合综合困难气道训练考核系统在急诊规范化培训住院医师气管插管培训中的应用效果。方法选择2022年1月—2023年6月在首都医科大学宣武医院急诊科轮转的住院医师58人,随机分为对照组(n=28)和试验组(n=30)。对照组应用直接喉镜结合综合困难气道训练考核系统进行气管插管技能培训,试验组应用视频喉镜结合综合困难气道训练考核系统进行气管插管技能培训。培训结束后对两组住院医师进行气管插管技能考核,内容包括正常气道和困难气道的气管插管,分别比较两组住院医师气管插管时间、一次性插管成功率、喉镜对门齿的压力、气管插管位置正确率的区别。另外,分别对两组住院医师进行教学满意度问卷调查。结果普通气道气管插管中,试验组与对照组喉镜对门齿的压力和气管插管位置正确率的差异无统计学意义(P>0.05);一次性插管成功率试验组大于对照组,气管插管时间试验组小于对照组(均P<0.05)。在困难气道气管插管中,试验组的一次性插管成功率和气管插管位置正确率大于对照组(P<0.05),插管时间和喉镜对门齿的压力明显小于对照组(P<0.05)。调查问卷自评显示,试验组对气管插管自信心和学习兴趣大于对照组(P<0.05),满意度和技能评分两组差异无统计学意义(P>0.05)。结论应用视频喉镜结合综合困难气道训练考核系统对急诊规范化培训住院医师进行气管插管培训可以提高气管插管成功率,减少对门齿的损伤,提高住院医师的学习兴趣。

喉白斑的窄带成像内镜下诊断与病理分析

目的 探讨通过窄带成像(narrow band imaging,NBI)电子喉镜下观察喉黏膜上皮内的毛细血管袢形态,能否指导喉白斑患者治疗方法的选择。方法 选取2019年6月~2021年9月临床诊断为喉白斑的68例患者为研究对象,根据NBI电子喉镜的诊断结果,将患者分为两组:良性病变组(52/68)和恶性病变组(16/68)。比较NBI喉镜诊断与病理检查结果的一致性。结果良性病变组中病理确诊为鳞状上皮增生伴角化35例(67.31%),轻度不典型增生9例(17.31%),中度不典型增生3例(5.77%),原位癌5例(9.62%),恶性病变组中病理确诊为中度不典型增生2例(12.50%),重度不典型增生1例(6.25%),原位癌9例(56.25%),浸润癌4例(25.00%)。采用Kappa一致性检验法,k=0.687,P<0.001,说明NBI电子喉镜诊断结果和病理检查结果存在一致性。结论 NBI电子喉镜能很好的分辨喉白斑的性质,对喉白斑治疗方法的选择和随访观察喉白斑的进展有较高的指导意义。

治疗性沟通联合微信干预在喉内镜检查患者中的应用效果

目的观察治疗性沟通联合微信干预在喉内镜检查患者中的应用效果。方法选取喉内镜检查患者220例,将常规干预患者110例纳入对照组,行治疗性沟通联合微信干预患者110例纳入观察组,比较2组心境状态、依从性、患者满意度及不良反应。结果2组干预前心境状态中抑郁-沮丧、迷惑-混乱、疲乏-迟钝、愤怒-敌意、精力-活力、紧张-焦虑各项评分差异均无统计学意义(P>0.05),干预后观察组各项评分低于对照组,差异有统计学意义(P<0.05)。观察组复查、护理、治疗依从性评分均高于对照组,差异有统计学意义(P<0.05)。2组干预前沟通及健康教育、护理技术、护理态度、检查环境评分差异均无统计学意义(P>0.05),干预后观察组评分均高于对照组,差异有统计学意义(P<0.05)。观察组出现不良反应2例(1.82%),少于对照组的9例(8.18%),差异有统计学意义(P<0.05)。结论治疗性沟通联合微信干预用于喉内镜检查患者,可改善其心境状态及依从性,提升患者满意度,减少不良反应。

全麻显微镜支撑喉镜激光烧灼术在声带息肉治疗中的应用

目的研究全麻显微镜支撑喉镜激光烧灼术在声带息肉治疗中的应用。方法本文为前瞻性研究。选取2019年3月至2022年5月巴彦淖尔市医院治疗的90例行声带息肉切除术患者作为研究对象,根据信封法将患者随机分为观察组(47例)和对照组(43例)。对照组男23例、女20例,年龄(50.12±1.85)岁,采用支撑喉镜常规显微器械切除术;观察组男25例、女22例,年龄(49.75±2.18)岁,采用全麻显微镜支撑喉镜激光烧灼术。对比两组患者手术效果、嗓音嘶哑分级评估(GRBAS)、嗓音障碍指数量表(VHI)评分、生活质量综合评定问卷-74(GQOL-74)评分及并发症发生情况。采用t检验、χ^(2)检验。结果观察组治疗总有效率为93.62%(44/47),与对照组[86.05%(37/43)]比较,差异无统计学意义(χ^(2)=1.430,P=0.232)。两组患者术后总嘶哑度[观察组(1.39±0.41)、对照组(1.61±0.34)]、粗糙声[观察组(1.36±0.50)、对照组(1.42±0.52)]、气息声[观察组(0.91±0.52)、对照组(0.94±0.53)]及VHI评分[观察组(11.48±7.36)分、对照组(12.04±7.52)分]均低于术前,且观察组术后总嘶哑度低于对照组[(1.39±0.41)比(1.61±0.34)],差异均有统计学意义(均P<0.05)。观察组术后躯体健康[(20.14±4.02)分]、心理健康[(22.57±4.86)分]、物质生活[(13.54±3.57)分]及社会功能评分[(16.78±3.71)分]均高于对照组[(16.47±3.46)分、(19.67±3.76)分、(11.49±3.24)分、(13.47±3.16)分],差异均有统计学意义(t=4.621、3.145、2.843、4.535,均P<0.05)。观察组并发症发生率为8.51%(4/47),低于对照组的25.58%(11/43),差异有统计学意义(χ^(2)=4.712,P=0.030)。结论应用全麻显微镜支撑喉镜激光烧灼术治疗声带息肉患者总嘶哑度更低,术后生活质量更高,并发症少,值得在临床推广应用。

70°硬管喉镜在下咽部及食管上段异物取出术中的应用

目的探讨70°硬管喉镜在下咽部及食管上段异物取出术中的应用效果。方法回顾性分析2022年1月至2023年2月198例下咽部及食管上段异物患者的临床资料。其中下咽部异物121例;食管上段异物77例。分析70°硬管喉镜在不同部位异物取出术中的应用效果。结果下咽部异物患者中经70°硬管喉镜取出120例,电子胃镜取出1例;食管上段异物患者中经70°硬管喉镜取出19例,电子胃镜取出41例;电子胃镜检查未找到5例,食管镜手术取出3例,自行脱落9例。在下咽部异物的类型中鱼刺最常见,占86.78%;在食管上段异物类型中,鱼刺占38.96%,各类骨头占41.56%。结论70°硬管喉镜在下咽部异物及食管上段异物的应用中具有方便快捷、视野暴露好等优势。对于异物暴露清楚且配合程度较好的患者,尤其是下咽部与食管第6颈椎平面以上异物可以优先考虑应用70°硬管喉镜取出。

可视硬性喉镜在颈托固定模拟困难气道患者经鼻气管插管中的应用

目的比较可视硬性喉镜与可视喉镜在颈托固定模拟困难气道患者经鼻气管插管中的应用效果。方法选择经鼻气管插管全麻手术患者90例,男52例,女38例,年龄18~64岁,BMI 18.5~25.0 kg/m^(2),ASAⅠ或Ⅱ级。麻醉诱导前,脊柱外科医师根据患者实际情况选择合适型号颈托并调节固定颈部,建立困难气道模型。采用随机数字表法将患者分为两组:可视硬性喉镜组(R组)和可视喉镜组(C组),每组45例。R组和C组分别使用可视硬性喉镜和可视喉镜完成经鼻气管插管。记录鼻腔通过时间、声门暴露时间、插管时间、首次插管成功例数、插管次数。采用Cormark-Lehane(C-L)分级评估镜下声门暴露情况。采用改良经鼻气管插管困难量表(NIDS)对插管条件进行量化评估。记录插管前(T_(1))、插管后即刻(T_(2))、插管后1 min(T_(3))、插管后3 min(T_(4))的HR和MAP。记录插管相关并发症(鼻出血、咽喉痛、声嘶)的发生情况。结果与C组比较,R组鼻腔通过时间明显延长,声门暴露时间、插管时间明显缩短,插管无困难比例明显升高(P<0.05),T_(2)、T_(3)时R组HR明显减慢,MAP明显降低(P<0.05),R组鼻出血、咽喉痛、声音嘶哑发生率明显降低(P<0.05)。两组首次插管成功率、插管次数、C-L分级差异无统计学意义。结论对于颈托固定模拟困难气道的患者,可视硬性喉镜与可视喉镜均可安全有效地完成经鼻气管插管。与可视喉镜比较,使用可视硬性喉镜时声门暴露更快,插管时间更短,插管难度更低,对血流动力学影响更小,不良反应发生率更低。

侧卧位可视喉镜下行VivaSight双腔支气管插管的临床研究

目的探讨侧卧位可视喉镜下行VivaSight双腔支气管导管(VDLT)插管是否安全有效。方法选取北京航天总医院胸外科2021-04/2022-04期间择期行胸腔镜手术患者60例,采用随机数字表法分为仰卧位插管组(S组,n=30)和侧卧位插管组(L组,n=30)。L组患者自主摆放侧卧位后行麻醉插管;S组患者仰卧位麻醉插管后摆放侧卧位。观察并记录2组患者侧卧位摆放所需医护人员数量、侧卧位摆放时间、Cormach-Lehane声门显露分级、插管次数、插管时间;麻醉诱导前(T_(1))、插管前即刻(T_(2))、暴露声门时(T_(3))、VDLT置入左主支气管后1 min(T_(4))、插管完成后3 min(T_(5))、插管完成后5 min(T_(6))的血压和心率;摆体位后VDLT移位情况,患者术后咽喉疼痛、声音嘶哑等不良反应。结果相较于S组,L组患者摆体位人数更少,时间更短,VDLT移位例数更少,插管相关并发症更少(P<0.05);2组患者声门显露分级、插管次数、插管时间、血压和心率比较,差异无统计学意义(P>0.05)。结论胸外科手术患者侧卧位可视喉镜下行VDLT插管安全有效。