This trial is active, not recruiting.

Conditions laryngospasm, bradycardia
Treatments airway laryngeal mask classic, endotracheal tube
Phase phase 3
Sponsor Universidad de Antioquia
Start date January 2012
End date October 2013
Trial size 338 participants
Trial identifier NCT01288248, Anestudea-001


The purpose of this study is to determine whether the use of laryngeal mask classic as method for securing the airway in the population of 2 years to 14 years is associated with risk of laryngospasm as compared with the use of endotracheal tube.

United States No locations recruiting
Other Countries No locations recruiting

Study Design

Allocation randomized
Endpoint classification safety/efficacy study
Intervention model parallel assignment
Masking single blind (outcomes assessor)
Primary purpose treatment
Ventilation with Airway laryngeal mask classic during surgery
airway laryngeal mask classic airway laryngeal mask proseal
This group includes patients with the randomization process are assigned to use Classic laryngeal mask as a method to secure the airway after induction of anesthesia, which will be maintained during surgery and removed the patient asleep once you are done the surgical procedure to determine the presence or absence of laryngospasm. The laryngeal mask mark to be used will laryngeal Mask Device ® which comes in different sizes and sterilized in ethylene oxide. The size of the Classic laryngeal mask is used according to the weight assigned
(Active Comparator)
Ventilation with endotracheal tube during surgery
endotracheal tube laryngeal tube
This group includes patients with the randomization process are allocated to use endotracheal tube method for securing the airway after induction of anesthesia, which will be maintained during surgery and removed in the awake patient when you finish the surgical procedure to determine the presence or absence of laryngospasm. The marks of the endotracheal tube will be one of the following: Kendall Curity ®, Well Lead Medical ®, Meditec ®, which are not reusable. The size of the endotracheal tube be allocated according to age.

Primary Outcomes

Laryngospasm clinically manifested as inspiratory stridor and/or expiratory, no breath sounds, paradoxical movement of the thorax and abdomen and desaturation, bradycardia, central cyanosis.
time frame: The appearance of the outcome will be measured from anesthetic induction until the patient is fully awake

Secondary Outcomes

Desaturation defined as SaO2 < 90% in pulse oximetry associated with laryngospasm
time frame: from anesthetic induction until the patient is fully awake
Presence of bradycardia in the cardioscope as reported for the age.
time frame: from anesthetic induction until the patient is fully awake

Eligibility Criteria

Male or female participants from 2 years up to 14 years old.

Inclusion Criteria: - ASA I and III children, 1-14 years of age - Children scheduled for surgery or therapeutic procedures under general anesthesia and fasting as defined in the fasting guidelines - Responsible adult patients whose accept and sign the informed consent of study Exclusion Criteria: - Surgery of the head, neck, chest and/or abdomen (except the abdominal wall) - Position different than the supine in surgery - Malformations or anatomic abnormalities of the face and airway - Procedures over 3 hours - Patients with pulmonary aspiration risk: morbid obesity, intestinal obstruction, gastrointestinal bleeding, gastroparesis, gastroesophageal reflux - Patients with limited mouth opening or cervical spine extension and classified as difficult airway

Additional Information

Official title The Risk of Laryngospasm in Children is Similar to the Use of the Laryngeal Mask and the Endotracheal Tube in Children 2 Years to 14 Years: Clinical Trial Randomized Noninferiority
Principal investigator Olga Lucia Giraldo Salazar, MD, MsH
Description Laryngospasm, defined as closure of the glottis as a protective reflex secondary to abnormal stimulation (7), with a reported incidence in the general population of 8.7 per 1000 patients undergoing surgical procedures (8), is considered the most common event among the complications in the management of pediatric airway, causing 40% of obstructive events after extubation (7-8), with incidents reported in the American pediatric population from 0.4% to 14% (8-9) for population under 6 years and 3.6% in > 6 years. Among the risk factors associated with the development of laryngospasm and anesthesia in children are: age, ASA (4), upper respiratory infection (10), among others, however in recent years has gained interest and generated dispute the association between this outcome and the type of device used to secure the airway during anesthesia. Although the endotracheal tube device is considered the "gold standard" for airway management, this has been associated with an increased incidence of laryngospasm (8), explained this phenomenon, apparently by direct stimulation because the tube into the larynx and trachea, which triggers, in theory, a posterior laryngeal reflex intense (11). In recent years, with the advent of new devices for securing the airway, especially supraglottic use type Classic Laryngeal Mask (LM), it was thought that the main trigger of laryngospasm, laryngeal and tracheal stimulation caused by the endotracheal tube (ETT), would be resolved and will decrease the incidence of complications in the pediatric population; however, three recent prospective studies (10-11-12) is no statistically significant difference in incidence of laryngospasm among laryngeal mask and endotracheal tube. By contrast, two retrospective studies (6.4) have shown increased incidence of laryngospasm compared to ETT in children. In 2002, one of the aforementioned prospective studies (11), found an incidence of laryngospasm 11.2% versus 16.9% for ETT versus ML, respectively, but without an increase in relative risk statistically significant when comparing the ML to ETT. In view of these findings and considering that most studies in this respect seem to have technical and methodological limitations, our objective is to determine by controlled clinical trial non inferiority the risk of laryngospasm with the endotracheal tube vs a device supraglottic, Classic Laryngeal Mask type as a method of airway patency in the pediatric population, assuming that the risk of laryngospasm with both devices is equal.
Trial information was received from ClinicalTrials.gov and was last updated in July 2012.
Information provided to ClinicalTrials.gov by Universidad de Antioquia.