Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “Intubation”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 163 records · Page 9Linked to original sources

The intubating laryngeal mask. I: Development of a new device for intubation of the trachea.

The standard laryngeal mask airway (LMA) functions both as a ventilatory device and as an aid to blind/fibrescopic-guided tracheal intubation. We describe the radiological and laboratory work used to bioengineer a new laryngeal mask prototype, the intubating laryngeal mask airway (ILMA). The aim was to create a new airway system with better intubation characteristics than the LMA. Other design goals were to eliminate the need for head-neck manipulation and insertion of fingers in the mouth during placement. Development was aided by analysis of magnetic resonance images of the human pharynx and laboratory testing with a variety of tracheal tubes. The principal features of this new system are an anatomically curved, rigid airway tube with an integral guiding handle, an epiglottic elevating bar replacing the mask bars, a guiding ramp built into the floor of the mask aperture and a modified silicone tracheal tube developed for use with the device.

Biomedical Engineering↗

[100 years of intubation anesthesia. William Macewen, a pioneer of endotracheal intubation].

Endotracheal anaesthesia with the help of orotracheal intubation is 100 years old. In 1880, William Macewen was the first to describe and to perform that technique. In his paper entitled "clinical observations on the introduction of tracheal tubes by the mouth instead of performing tracheotomy or laryngotomy' he describes in addition two cases of endotracheal intubation lasting at least 36 h. He can, therefore, be said also to have performed the first long-time intubation.

Anesthesia, Endotracheal↗

Extubation from low-rate intermittent positive airways pressure versus extubation after a trial of endotracheal continuous positive airways pressure in intubated preterm infants.

BACKGROUND: Failure of extubation and subsequent reintubation may result in additional stress and trauma to the premature infant. Testing infants about to be extubated with a period of endotracheal CPAP has been suggested as a method of demonstrating readiness for extubation. However, this process has been criticized as increasing the neonate's work of breathing and perhaps increasing the likelihood of extubation failure. OBJECTIVES: In premature infants having their endotracheal tube removed, is direct extubation from low rate intermittent positive pressure ventilation (IPPV) more successful than that following a period of endotracheal continuous positive airway pressure (CPAP)? SEARCH STRATEGY: The standard search strategy of the Neonatal Review Group as outlined in the Cochrane Library was used. This included searches of the Oxford Database of Perinatal Trials, Cochrane Controlled Trials Register, MEDLINE, previous reviews including cross references, abstracts, conferences, symposia proceedings, expert informants and journal hand searching mainly in the English language. SELECTION CRITERIA: All trials using random or quasi-random allocation of premature infants to endotracheal CPAP or direct extubation following a period of IPPV were included. DATA COLLECTION AND ANALYSIS: Data were extracted using standard methods of the Cochrane Collaboration and its Neonatal Review Group, with separate evaluation of trial quality and data extraction by each author and synthesis of data using relative risk. MAIN RESULTS: Direct extubation from low rate ventilation is associated with a trend to increased chance of successful extubation when compared to extubation after a period of endotracheal CPAP, RR 0.45 (0.19,1.07), RD -0.103 (-0.200,-0.006), NNT 10 (5,167). When only truly randomized trials are considered, this result becomes both statistically significant and clinically important, RR 0.10 (0.01,0.78), RD -0.201 (-0.319,-0.083), NNT 5 (3, 12). Similar differences are seen for the secondary outcome, apnea. REVIEWER'S CONCLUSIONS: Preterm infants no longer requiring endotracheal intubation and IPPV should be directly extubated without a trial of ETT CPAP.

Humans↗

[Initial experiences with rigid angled optical systems as intubation aids in difficult intubation].

Referring to a classification by Cormack, difficult laryngoscopy of Grade 3 (only the epiglottis or a part of it can be seen) was simulated in 16 patients by lowering the blade of the laryngoscope, so that the epiglottis was pushed down and thus covered up the vocal cords. The object of the study was to test whether a newly developed rigid endoscope is a useful tool during intubation in cases of laryngoscopical view Grade 3. After simulation of Grade 3 as mentioned above, using a clip, an angle optic was fixed to the vertical part of the blade, so that the movement of the optic in the sagittal level was still possible. If an improvement of the laryngoscopical view was possible, the tracheal tube was inserted via the nasal route until the top of the tube could be seen in the oropharynx. The tracheal tube was inserted into the trachea, under endoscopic control. With this new method, naso-tracheal intubation under endoscopic control in all 16 patients was successful, without affecting the pharynx and the vocal cords.

Endoscopes↗

[The laryngeal mask versus intubation in difficult intubation conditions in the Franceschetti-Zwahlen-Klein syndrome (Treacher-Collins syndrome)].

A twenty-nine-year-old man suffering from Franceschetti syndrome requiring a retinal detachment operation was successfully anaesthetised using the laryngeal mask airway. The laryngeal mask has many advantages compared to endotracheal intubation in patients suffering from craniofacial abnormalities i.e. hypoplasia of the mandibular bone and ventral position of the larynx. In these cases the laryngeal mask is easily placed. However, the facilities of fibreoptic bronchoscopy should be readily available. The physician should have gained confidence in using a laryngeal mask before employing this device in cases of difficult intubation.

Adult↗

Translaryngeal guided intubation for difficult intubation.

Airway obstruction remains a constant problem in acute care. This is particularly true when there are anatomical or pathological abnormalities, trauma, or when repeated failed attempts at endoscopic or blind intubations have left a bloody field, preventing clear visualization of the vocal cords. Our refinement of translaryngeal guided intubation (TLI) uses a spring guidewire accompanied by a plastic sheath protector. The wire is introduced percutaneously via a cricothyroid puncture and passed cephalad into the oropharynx or nasopharynx and out through the mouth or one of the nostrils. The plastic sheath is slid over the wire into the trachea. A well-lubricated endotracheal tube is then inserted to the desired position using the plastic sheath as a stylet. This technique works very well, and we are convinced that TLI is one of the most effective emergency techniques to secure an airway. It can be performed quickly with inexpensive equipment and is a promising addition to the currently recommended alternatives.

Airway Obstruction↗

Droperidol and endotracheal intubation. Attenuation of pressor response to laryngoscopy and intubation.

The cardiovascular responses to anaesthesia, laryngoscopy and tracheal intubation were studied in 20 healthy adult patients. The mean arterial pressure increase following intubation was 1.60 mmHg (SEM +/- 3.52 mmHg) in patients to whom droperidol 150 microgram/kg was given intravenously before anaesthesia compared with a rise of 26.50 mmHg (SEM +/- 4.35 mmHg) in a control group of patients.

Adult↗

[Problems of intubation using the flexible LF-1 fiberoptic bronchoscope. Development of an intubation aid].

Fiberoptic endotracheal intubation with an endoscope (external diameter 4 mm) especially designed for anesthesiologists proved to be safe providing small-diameter tubes were used. The use of large-diameter tubes (I.D. 7.5-8.5 (mm)) involves a risk of the tip of the tube clinging to the arytenoid cartilages preventing any further advancement. To avoid this complication another special tube has been constructed, which fills the space between the endotracheal tube and the bronchoscope and centers the bronchoscope within the endotracheal tube. When this new tube was used there were no problems either in passing the bronchoscope through this "inner" tube or in withdrawing the inner tube after successful intubation. With the new device it was even possible to pass tubes with wider lumen into the trachea over the fiberscope with minimal difficulty and trauma.

Bronchoscopes↗

Rat intubation. A method for safe and fast intubation of the rat trachea under direct vision.

A method has been developed for the safe and rapid intubation of the rat trachea under direct vision. Rats are first anaesthesized with an oxygen/nitrous oxide/halothane mixture. A modified eyelid retractor and a curved bulldog artery clamp are used to keep the animal's mouth open and the tongue to the side. A laryngoscope, fashioned from a weighing spatula and a glassfibre cable which is connected to a cold light source, is used to bring the trachea in view. The trachea is then easily intubated with a suitable intravenous canula.

Anesthesia, Endotracheal↗

Double-lumen endotracheal tube intubation in difficult intubation-use the WuScope System: a case report.

Although not an absolute requirement in most cases, there are many anesthetic and surgical advantages for using a double-lumen tube during intrathoracic operations. It is almost impossible that double-lumen tube intubation by conventional methods in patients whose glottis can not be visualized by direct laryngoscopy. We describe the previously unreported method by using The WuScope System for double-lumen endotracheal tube intubation in a patient with acromegaly and difficult airway.

Female↗

[Ring-intubation set for bicanalicular intubation (Murube del Castillo technic)].

A new intubation set for the lacrimal canaliculi is described. The set consists of a silicon tube 0.64 mm thick containing a 4-0 Suturamid conducting filament. The silicon tube is conical and is attached to the filament with glue. Thus, the entire system can be introduced very easily into the lacrimal punctae and through the canaliculi in the way described by Murube del Castillo.

Humans↗

Comparison of intubation following propofol and alfentanil with intubation following thiopentone and suxamethonium.

We have compared a rapid sequence induction of anaesthesia using propofol 2 mg.kg-1 and alfentanil 50 micrograms.kg-1, with a standard technique using thiopentone 5 mg.kg-1 and suxamethonium 1 mg.kg-1. The incidence of complications, and the quality of conditions for intubation, were similar in both groups. The patients receiving propofol and alfentanil showed a significant decrease in blood pressure and heart rate following induction (p < 0.01), whereas the group receiving thiopentone and suxamethonium showed a significant increase in blood pressure and heart rate following induction (p < 0.01). The use of propofol and alfentanil provided a satisfactory alternative to thiopentone and suxamethonium for a rapid sequence induction of anaesthesia.

Adolescent↗