What Is The Purpose Of Cricoid Pressure?


In 1961 Sellick reported using “occlusion of the upper oesophagus by backwards pressure on the cricoid ring against the bodies of the cervical vertebrae to prevent gastric contents from reaching the pharynx” during induction of anaesthesia in patients at high risk of aspiration .

When do you use cricoid pressure?


  1. proponents advocate use of cricoid pressure to prevent passive regurgitation during rapid sequence intubation (RSI)
  2. other suggest cricoid pressure is only necessary for high risk cases, e.g. upper GI surgery, obstetric anaesthesia, patients with bowel obstruction.

Is cricoid pressure necessary?

Cricoid pressure is controversial. Although it has been taught in anaesthesia practice, since it’s original description by Sellick1, as an essential requirement when performing RSI, the evidence for its benefit and lack of risk is far from compelling2,3.

Why is routine use of cricoid pressure not recommended?

The criteria of the Airway Device Evaluation Project Team (ADEPT) of the Difficult Airway Society consider level 3b trial evidence (i.e. single case-control or historical-control study 16 ) published in peer- reviewed scientific literature a sine qua non criterion for equipment evaluation.

How hard should you apply cricoid pressure?

Vanner and Asai recommended 30 N of force for “cricoid pressure”, because this would pre- vent regurgitation at oesophageal pressures up to 40 mmHg, which is far more than expected in most patients. Since then, 30 N of force has been adopted as the ideal force for the application of cricoid pres- sure.

Who can apply cricoid pressure during intubation?

At least two practitioners are required to perform intubation during cricoid pressure. The cricoid pressure should not be released until the patient is intubated with the cuff inflated; therefore, it would be prohibitively challenging for 1 person to perform both tasks simultaneously.

When should cricoid pressure be removed?

– Release cricoid pressure once a cuffed tracheal tube protects the airway, if the patient actively vomits or on the anaesthetist’s request. – If lung inflation is not possible, either reduce the pressure that is being applied or release the pressure completely (Nolan et al, 2005).

Is burp the same as Cricoid pressure?

Cricoid pressure, sometimes called the Sellick maneuver, aims to reduce the risk of regurgitation, usually during intubation prior to anesthesia. It is similar to the BURP (backwards upwards rightwards pressure) technique, but serves a completely different purpose.

What does it mean to Extubate a patient?

Extubation refers to removal of the endotracheal tube (ETT). It is the final step in liberating a patient from mechanical ventilation. Assessing the safety of extubation, the technique of extubation, and postextubation management are described in this topic.

What does it mean to aspirate after drinking?

Aspiration means you‘re breathing foreign objects into your airways. Usually, it’s food, saliva, or stomach contents when you swallow, vomit, or experience heartburn. This is common in older adults, infants, and people who have trouble swallowing or controlling their tongue.

What is burp in intubation?

Applying backward, upward, rightward, and posterior pressure on the larynx (i.e., displacement of the larynx in the backward and upward directions with rightward pressure on the thyroid cartilage) is called the “BURP” maneuver and has been well described by Knill.

What does burp maneuver mean?

The BURP maneuver (backward, upward, and rightward pressure on the larynx), introduced by Knill in 1993, has been shown to improve glottic view during laryngoscopy.


When is sellicks Manoeuvre used?

The Maneuver is most often used to help align the airway structures during endotracheal intubation. The real value of this procedure is often misunderstood and therefore, is often underutilized.

How do you burp a maneuver?

The BURP maneuver consists of the displacement of the thyroid cartilage dorsally so as to abut the larynx against the bodies of the cervical vertebrae, 2 cm cephalad until mild resistance is met, and 0.5-2.0 cm laterally to the right.

How do you know when intubation is successful?

Clinical signs of correct tube placement include a prompt increase in heart rate, adequate chest wall movements, confirmation of position by direct laryngoscopy, observation of ETT passage through the vocal cords, presence of breath sounds in the axilla and absence of such in the epigastrium, and condensation in the …

How does a Laryngeal Mask Airway work?

A laryngeal mask airway (LMA) is a device inserted into the area behind the mouth and nose, connecting them to the food pipe (the pharynx) to allow ventilation, oxygenation, and administration of anesthetic gases, without the need for inserting a tube in the windpipe (endotracheal intubation).

Why are patients intubated during surgery?

Intubation is done because the patient cannot maintain their airway, cannot breathe on their own without assistance, or both. They may be going under anesthesia and will be unable to breathe on their own during surgery, or they may be too sick or injured to provide enough oxygen to the body without assistance.

Can’t oxygenate can’t ventilate?

“Can’t Intubate Can’t Ventilate” is one of the frightening statements that causes massive surges of adrenaline in everyone. Unfortunately, most neural synapses don’t function well with that large surge of adrenaline, and it is, therefore, imperative to contemplate how to manage this scenario before it arises.

Which cartilage is important during intubation?

Due to the conventional intubation technique the left arytenoid cartilage is affected most frequently. Posterolateral subluxation is attributed to the pressure exerted on the posterior glottis by the convex part of the shaft of the tube.

What is the sniffing position?

Background: The sniffing position, a combination of flexion of the neck and extension of the head, is considered to be suitable for the performance of endotracheal intubation. To place a patient in this position, anesthesiologists usually put a pillow under a patient’s occiput.

What are two types of laryngoscope blades?

Laryngoscopes are designed for visualization of the vocal cords and for placement of the ETT into the trachea under direct vision. The two main types are the curved Macintosh blade and the straight blade (i.e., Miller with a curved tip and Wisconsin or Foregger with a straight tip).

How should the cuff of a tracheal tube be passed?

When neither mechanical ventilation or a risk of gross aspiration is present, the cuff should be deflated. Another consideration is to change the patient to a cuffless tracheostomy tube. The definition of aspiration is when any food, liquid, or other matter passes below the vocal folds.

What is the purpose of rapid sequence intubation?

Rapid sequence intubation (RSI) is a technique that is used when rapid control of the airway is needed as a precaution for patients that may have a ‘full stomach’ or other risks of pulmonary aspiration.


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