Effect of Paratracheal Esophagus Pressure on the Insertion of Laryngeal Mask Airway
Summary
Laryngeal mask airway is inserted into the oral cavity and seals the upper esophagus and the surrounding tissue, effectively securing airway. Laryngeal mask airway has been widely adopted in the clinical practice.
On the other hand, cricoid pressure has been used to reduce the risk of pulmonary aspiration of gastric contents during induction of general anesthesia. However, cricoid pressure might impede placement of the laryngeal mask airway, thereby preventing effective ventilation.
Recently, left paratracheal pressure was introduced as an alternative to cricoid pressure and reported to be more effective than cricoid pressure in the prevention of gastric air insufflation during positive-pressure ventilation by facemask. Since this method compresses low left paratracheal level, it may affect the successful insertion of laryngeal mask airway.
In this study, the investigators aimed to evaluate the effect of paratracheal esophagus pressure on the insertion of laryngeal mask airway compare to conventional cricoid pressure.
Study Design
Conditions
General Anesthesia
Intervention
Paratracheal pressure, Cricoid pressure
Status
Not yet recruiting
Source
Ajou University School of Medicine
Results (where available)
Links
- Source: http://clinicaltrials.gov/show/NCT04106635
- ClinicalTrials.gov processed this data on October 01, 2019
Published on BioPortfolio: 2019-10-02T07:21:33-0400
Clinical Trials
Paratracheal Esophagus Pressure on the Intubation With Pentax Airway Scope
Recently, left paratracheal pressure was introduced as an alternative method to prevent pulmonary aspiration instead of cricoid pressure. Criocoid pressure is known to worsen glottic visib...
Effectiveness of Cricoid and Paratracheal Pressures for Occluding Esophagus
Comparing the effects of 'Cricoid pressure' or 'Paratracheal pressure' during direct laryngoscopy
The Effect of Paratracheal Pressure on the Glottic View
Paratracheal pressure may have a role in the prevention of pulmonary aspiration. The effects of paratracheal pressure on glottic view, ease of facemask ventilation, or tracheal intubation ...
Ultrasound-guided Identification of Cricoid Cartilage in Cricoid Pressure
This study is aimed to provide the evidence that ultrasound-guided identification of the cricoid cartilage can improve effectiveness of cricoid pressure. Ultrasound (US) is well recognized...
Cricoid Pressure vs. Paralaryngeal Pressure to Prevent Regurgitation
Comparing the effects of ' Cricoid pressure' or 'Paralaryngeal pressure' during endotracheal intubation procedure.
PubMed Articles
Cricoid Pressure: Do No Harm, But Do It Correctly.
A volume-pressure sensor and tail-cuff method for monitoring blood pressure is non-invasive and inexpensive. This method requires animals to be restrained or subjected to anesthesia, but comparative e...
Comparison of routine and automated office blood pressure measurement.
From April to October 2018, we implemented a blood pressure measurement quality improvement project at our Hypertension Center. We aimed to compare blood pressure measured using routine, non-standardi...
How to accurately measure blood pressure.
Many experienced clinicians as well as medical and dental students do not measure blood pressure accurately, because they either take shortcuts or lack knowledge regarding the appropriate technique. T...
Anaesthesiologic Techniques for Patients at Risk of Aspiration.
Rapid sequence induction and intubation (RSII) is the appropriate method of inducing general anaesthesia in patients who are at a risk of aspiration. The classical RSII is limited to a few treatment r...
Medical and Biotech [MESH] Definitions
Atrial Pressure
The pressure within the CARDIAC ATRIUM. It can be measured directly by using a pressure catheter (see HEART CATHETERIZATION). It can be also estimated using various imaging techniques or other pressure readings such as PULMONARY CAPILLARY WEDGE PRESSURE (an estimate of left atrial pressure) and CENTRAL VENOUS PRESSURE (an estimate of right atrial pressure).
Venous Pressure
The blood pressure in the VEINS. It is usually measured to assess the filling PRESSURE to the HEART VENTRICLE.
Hypertension
Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more.
Thiopental
A barbiturate that is administered intravenously for the induction of general anesthesia or for the production of complete anesthesia of short duration. It is also used for hypnosis and for the control of convulsive states. It has been used in neurosurgical patients to reduce increased intracranial pressure. It does not produce any excitation but has poor analgesic and muscle relaxant properties. Small doses have been shown to be anti-analgesic and lower the pain threshold. (From Martindale, The Extra Pharmacopoeia, 30th ed, p920)
Arterial Pressure
The blood pressure in the ARTERIES. It is commonly measured with a SPHYGMOMANOMETER on the upper arm which represents the arterial pressure in the BRACHIAL ARTERY.
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