			Home About us Contact

Successful Intubation (successful + intubation)

Distribution by Scientific Domains

Medical Sciences	100%

Selected Abstracts

Manikin study of fibreoptic-guided intubation through the classic laryngeal mask airway with the Aintree intubating catheter vs the intubating laryngeal mask airway in the simulated difficult airway,

ANAESTHESIA, Issue 8 2010
A. M. B. Heard
Summary In this randomised crossover manikin study of simulated difficult intubation, 26 anaesthetists attempted to intubate the trachea using two fibreoptic-guided techniques: via a classic laryngeal mask airway using an Aintree intubating catheter and via an intubating laryngeal mask airway using its tracheal tube. Successful intubation was the primary endpoint, which was completed successfully in all 26 cases using the former technique, and in 5 of 26 cases using the latter (p < 0.0001). The former technique also proved quicker to reach the vocal cords with the fibrescope (median (IQR [range])) time 18 (14,20 [8,44]) s vs 110 (70,114 [30,118]) s, respectively; p = 0.008); and to first ventilation (93 (74,109 [52,135]) s vs 135 (79,158 [70,160]) s, respectively; p = 0.0038)]. We conclude that in simulated difficult intubation, fibreoptic intubation appears easier to achieve using a classic laryngeal mask airway and an Aintree intubating catheter than through an intubating laryngeal mask airway. [source]

Effects of different doses of remifentanil on the end-tidal concentration of sevoflurane required for tracheal intubation in children

ANAESTHESIA, Issue 8 2009
L. He
Summary We investigated the effects of different doses of remifentanil on the end-tidal concentration of sevoflurane required for tracheal intubation in children without the use of neuromuscular blocking drugs. One hundred and thirty paediatric patients, aged 3,8 years, were randomly allocated to receive no remifentanil (group control) or remifentanil 0.1 ,g.kg,1.min,1 (group remi0.1), 0.2 ,g.kg,1.min,1 (group remi0.2), 0.3 ,g.kg,1.min,1 (group remi0.3). All patients were anaesthetised using 5% sevoflurane. After loss of eyelash reflex, remifentanil 1 ,g.kg,1 was injected over 1 min followed by an appropriate group-dependent infusion and the end-tidal sevoflurane concentration was changed. Predetermined end-tidal sevoflurane concentrations for each group were determined using the Dixon up-and-down method. After the target concentration of sevoflurane was maintained for 5 min, the child's trachea was intubated. Successful intubation was defined as excellent or good intubating conditions. The end-tidal concentration (SD) of sevoflurane for successful tracheal intubation in 50% of children (ED50) were 5.16 (0.22)% in control, 3.27 (0.18)%, 1.81 (0.20)% and 1.01 (0.11)%, in remi0.1, remi0.2, and remi0.3 groups, respectively. Using probit analysis, the 95% effective dose (ED95) of sevoflurane were 5.60% (95% CI 5.35,7.66), 3.77% (95% CI 3.45,7.74), 2.18% (95% CI 1.96,3.86), 1.19% (95% CI 1.06,1.82) in control, remi0.1, remi0.2, and remi0.3 groups, respectively. [source]

Human Patient Simulation Is Effective for Teaching Paramedic Students Endotracheal Intubation

ACADEMIC EMERGENCY MEDICINE, Issue 9 2005
FRCPC, Robert E. Hall BSc
Abstract Objectives: The primary purpose of this study was to determine whether the endotracheal intubation (ETI) success rate is different among paramedic students trained on a human patient simulator versus on human subjects in the operating room (OR). Methods: Paramedic students (n= 36) with no prior ETI training received identical didactic and mannequin teaching. After randomization, students were trained for ten hours on a patient simulator (SIM) or with 15 intubations on human subjects in the OR. All students then underwent a formalized test of 15 intubations in the OR. The primary outcome was the rate of successful intubation. Secondary outcomes were the success rate at first attempt and the complication rate. The study was powered to detect a 10% difference for the overall success rate (,= 0.05, ,= 0.20). Results: The overall intubation success rate was 87.8% in the SIM group and 84.8% in the OR group (difference of 3.0% [95% confidence interval {CI} =,4.2% to 10.1%; p = 0.42]). The success rate on the first attempt was 84.4% in the SIM group and 80.0% in the OR group (difference of 4.4% [95% CI =,3.4% to 12.3%; p = 0.27]). The complication rate was 6.3% in the SIM group and 4.4% in the OR group (difference of 1.9% [95% CI =,2.9% to 6.6%; p = 0.44]). Conclusions: When tested in the OR, paramedic students who were trained in ETI on a simulator are as effective as students who trained on human subjects. The results support using simulators to teach ETI. [source]

A Comparison of Trauma Intubations Managed by Anesthesiologists and Emergency Physicians

ACADEMIC EMERGENCY MEDICINE, Issue 1 2004
Joseph S. Bushra MD
Although airway management by emergency physicians has become standard for general emergency department (ED) patients, many believe that anesthesiologists should manage the airways of trauma victims. Objectives: To compare the success and failure rates of trauma intubations performed under the supervision of anesthesiologists and emergency physicians. Methods: This was a prospective, observational study of consecutive endotracheal intubations (ETIs) of adult trauma patients in a single ED over a 46-month period. All ETIs before November 26, 2000, were supervised by anesthesiologists (34 months), and all ETIs from November 26, 2000, onward were supervised by emergency physicians (12 months). Data regarding clinical presentation, personnel involved, medications used, number of attempts required, and need for cricothyrotomy were collected. Study outcomes were: 1) successful intubation within two attempts, and 2) failure of intubation. Failure was defined as inability to intubate, resulting in successful intubation by another specialist, or cricothyrotomy. Odds ratios (ORs) with 95% confidence intervals (95% CIs) were used to compare results between groups. Results: There were 673 intubations during the study period. Intubation within two attempts was accomplished in 442 of 467 patients (94.6%) managed by anesthesiologists, and in 196 of 206 of patients (95.2%) managed by emergency physicians (OR = 1.109, 95% CI = 0.498 to 2.522). Failure of intubation occurred in 16 of 467 (3.4%) patients managed by anesthesiologists, and in four of 206 (1.9%) patients managed by emergency physicians (OR = 0.558, 95% CI = 0.156 to 1.806). Conclusions: Emergency physicians can safely manage the airways of trauma patients. Success and failure rates are similar to those of anesthesiologists. [source]

Impact of Emergency Medicine Faculty and an Airway Protocol on Airway Management

ACADEMIC EMERGENCY MEDICINE, Issue 12 2002
James H. Jones MD
Objective: To determine the impact of emergency medicine (EM) faculty presence and an airway management protocol on success rates of tracheal intubation in the emergency department (ED). Methods: A retrospective observational study of prospectively collected data on rates of successful intubations between June 1997 and December 2001 in the ED of a large urban teaching hospital. The authors compared success rates of the first attempt at intubation and times to intubation prior to and after EM faculty presence and the institution of an airway management protocol. Results: Prior to EM faculty presence and the airway management protocol, tracheal intubation was achieved on the first attempt 46% of the time; more than six attempts were required 2.9% of the time. The mean time to intubation was 9.2 minutes (±13.2 SD). Following EM faculty presence and the airway protocol, the success rate on the first attempt was 62%, more than six attempts were required 1.1% of the time, and the mean time to intubation was 4.6 minutes (±6.2 SD). Conclusions: First-attempt intubation success rates and decreased mean time to successful intubation improved following EM faculty presence and the introduction of an airway management protocol. [source]

Performance of the AirtraqÔ laryngoscope after failed conventional tracheal intubation: a case series

ACTA ANAESTHESIOLOGICA SCANDINAVICA, Issue 7 2009
E. MALIN
Background: The AirtraqÔ, a new disposable indirect laryngoscope, was evaluated in patients with difficult intubation. Methods: The AirtraqÔ was used in 47 patients with predicted or unpredicted difficult intubation after failed orotracheal intubation performed by two senior anaesthesiologists with the Macintosh laryngoscope. Results: Tracheal intubation with AirtraqÔ was successful in 36 patients (80%). The Cormack and Lehane score was IIb,III in 35 patients, and IV in 12 patients, with the Macintosh laryngoscope, while Cormack and Lehane score was I,IIa in 40 patients, IIb,III in three and IV in four with AirtraqÔ. A gum elastic bougie was used to facilitate tracheal access in one-third (11/36) of the cases. Orotracheal intubation was not possible with AirtraqÔ in nine cases, five of whom had a pharyngeal, laryngeal or basal lingual tumour. Conclusion: In patients with difficult airway, following failed conventional orotracheal intubation, AirtraqÔ allows securing the airway in 80% of cases mainly by improving glottis view. However, the AirtraqÔ does not guarantee successful intubation in all instances, especially in case of laryngeal and/or pharyngeal obstruction. [source]

Tracheal intubation following training with the GlideScope® compared to direct laryngoscopy

ANAESTHESIA, Issue 7 2010
C. M. Ayoub
Summary Tracheal intubation using direct laryngoscopy has a high failure rate when performed by untrained medical personnel. This study compares tracheal intubation following direct laryngoscopy by inexperienced medical students when initially trained by using either the GlideScope®, a video assisted laryngoscope, or a rigid (Macintosh) laryngoscope. Forty-two medical students with no previous experience in tracheal intubation were randomly divided into two equal groups to receive training with the GlideScope or with direct laryngoscopy. Subsequently, each medical student performed three consecutive intubations on patients with normal airways that were observed by a anaesthetist who was blinded to the training method. The rates of successful intubation were significantly higher in the Glidescope group after the first (48%), second (62%), and third (81%) intubations compared with the Macintosh group (14%, 14% and 33%; p = 0.043, 0.004 and 0.004, respectively). The mean (SD) times for the first, second, and third successful tracheal intubations were significantly shorter in the Glidescope group (59.3 (4.4) s, 56.6 (7.1) s and 50.1 (4.0) s) than the Macintosh group (70.7 (7.5) s, 73.7 (7.3) s and 67.6 (2.0) s; p = 0.006, 0.003 and 0.0001, respectively). Training with a video-assisted device such as the GlideScope improves the success rate and time for tracheal intubation in patients with normal airways when this is performed by inexperienced individuals following a short training programme. [source]

Tracheal intubation in daylight and in the dark: a randomised comparison of the Airway Scope®, Airtraq®, and Macintosh laryngoscope in a manikin

ANAESTHESIA, Issue 7 2010
H. Ueshima
Summary Fifteen anaesthetists attempted to intubate the trachea of a manikin lying supine on the ground using the Airway Scope®, Airtraq® or Macintosh laryngoscope in three simulated conditions: (1) in room light; (2) in the dark and (3) in daylight. The main outcome measure was the time to ventilate the lungs after successful intubation; the secondary outcome was the success rate of ventilation within 30 s. In room light and in the dark, ventilation after successful tracheal intubation could always be achieved within 30 s for all three devices. There were no clinically meaningful differences in time to ventilate between the three devices. In daylight, time to ventilate the lungs for the Airway Scope was significantly longer than for the Macintosh blade (p < 0.0001; 95% CI for difference 27.5,65.0 s) and for the Airtraq (p < 0.0001; 95% CI for difference 29.2,67.6 s). Ventilation was always successful for the Macintosh and Airtraq laryngoscopes, but for the Airway Scope, only one of 15 participants could successfully ventilate the lungs (p < 0.0001). Therefore, the Airway Scope may have a role for tracheal intubation under room light or in darkness, but may not be so useful in daylight. In contrast, the Airtraq may have a role in both darkness and daylight. [source]

A comparison of the Airway Scope® and McCoy laryngoscope in patients with simulated restricted neck mobility

ANAESTHESIA, Issue 6 2010
R. Komatsu
Summary We compared the efficacy of the Airway Scope® and McCoy laryngoscope as intubation tools with the neck stabilised by a rigid cervical collar. After induction of anaesthesia and neck stabilisation, 100 patients were randomly assigned to tracheal intubation with an Airway Scope or McCoy laryngoscope. Overall intubation success rate, time required for intubation, number of intubation attempts required for successful intubation, and airway complications related to intubation were recorded. Overall intubation success rates were 100% with both devices and a similar number of intubation attempts were required. However, the mean (SD) time required for successful intubation was shorter with the Airway Scope (30 (7) s) than with the McCoy laryngoscope (40 (14) s; p < 0.0001). The incidences of intubation complications were similar, but oesophageal intubation (in six cases) occurred only with McCoy laryngoscope. [source]

A comparison of a flexometallic tracheal tube with the intubating laryngeal mask tracheal tube for nasotracheal fibreoptic intubation using the two-scope technique,

ANAESTHESIA, Issue 12 2009
M. R. Rai
Summary We compared the incidence and site of impingement of a flexometallic tracheal tube with those of the re-usable intubating laryngeal mask (ILMA) tube in 60 anaesthetised patients undergoing nasotracheal fibreoptic intubation for oral surgery. A two-scope technique was used, observing the site of impingement with one scope whilst intubating with the other. The tubes were 6.0-mm in females and 6.5-mm in males. Impingement occurred with 10 (33%) flexometallic and 2 (7%) ILMA tubes (p < 0.032). In all but one case, the impingement was posterior to the right arytenoid cartilage. When impingement was observed, a single disempaction with a 90° anticlockwise rotational manoeuvre overcame impingement in every case except one, allowing successful intubation. We conclude that the incidence of impingement of the tracheal tube, and therefore of potential laryngeal trauma from nasotracheal fibreoptic intubation, is significantly greater with the flexometallic tube than with the ILMA tube. [source]

A Comparison of GlideScope Video Laryngoscopy Versus Direct Laryngoscopy Intubation in the Emergency Department

ACADEMIC EMERGENCY MEDICINE, Issue 9 2009
Timothy F. Platts-Mills MD
Abstract Objectives:, The first-attempt success rate of intubation was compared using GlideScope video laryngoscopy and direct laryngoscopy in an emergency department (ED). Methods:, A prospective observational study was conducted of adult patients undergoing intubation in the ED of a Level 1 trauma center with an emergency medicine residency program. Patients were consecutively enrolled between August 2006 and February 2008. Data collected included indication for intubation, patient characteristics, device used, initial oxygen saturation, and resident postgraduate year. The primary outcome measure was success with first attempt. Secondary outcome measures included time to successful intubation, intubation failure, and lowest oxygen saturation levels. An attempt was defined as the introduction of the laryngoscope into the mouth. Failure was defined as an esophageal intubation, changing to a different device or physician, or inability to place the endotracheal tube after three attempts. Results:, A total of 280 patients were enrolled, of whom video laryngoscopy was used for the initial intubation attempt in 63 (22%) and direct laryngoscopy was used in 217 (78%). Reasons for intubation included altered mental status (64%), respiratory distress (47%), facial trauma (9%), and immobilization for imaging (9%). Overall, 233 (83%) intubations were successful on the first attempt, 26 (9%) failures occurred, and one patient received a cricothyrotomy. The first-attempt success rate was 51 of 63 (81%, 95% confidence interval [CI] = 70% to 89%) for video laryngoscopy versus 182 of 217 (84%, 95% CI = 79% to 88%) for direct laryngoscopy (p = 0.59). Median time to successful intubation was 42 seconds (range, 13 to 350 seconds) for video laryngoscopy versus 30 seconds (range, 11 to 600 seconds) for direct laryngoscopy (p < 0.01). Conclusions:, Rates of successful intubation on first attempt were not significantly different between video and direct laryngoscopy. However, intubation using video laryngoscopy required significantly more time to complete. [source]