Compare the Efficacy of Different Laryngeal Mask Size Selection Methods in

Status Completed

Clinical Trial Summary

The laryngeal mask is widely used in general anesthesia in children. Selection of an appropriately sized laryngeal mask airway (LMA) is critical to ensure safe and effective use of the device. In children, the appropriate size of the LMA to be used is usually determined by the patient's weight. Up to now, this is the gold standard method, but the weight-related technique is not always possible. The patient's weight is sometimes unknown or medical staff do not remember the relationship between weight and size. Moreover, there are no constant correlations between laryngeal airways and body indices such as height and weight, so that the standard method could cause an inappropriate size of laryngeal mask airway to be chosen. Researchers from Spain introduced a new technique to determine the size of the LMA in children by choosing the LMA that best matched the combined widths of the patient's index, middle and ring fingers, but needs to be formally evaluated in clinical application. In order to compare the application effects of two methods (weight-related and three-fingers), we designed a research plan.

Clinical Trial Description

The allocation sequence is generated by computer random number generation, and the allocation is placed in sequentially numbered opaque sealed envelopes by a non-investigator. Enrolment and data collection are performed by trained research staff who are not involved in the care of the patients. The treating clinicians are not blinded to the assignment group, but all other staff involved in both the collection and collation of data are blinded to group allocation. The primary measurement is the oropharyngeal leak pressure (OLP) at the recommended intracuff pressure. The secondary measurements included insertion time, fibreoptic view grade, insufficient ventilation, and the occurrence of complications such as postoperative sore throat. The sample size was calculated to be 390 by a statistical software based on previous research results. The continuous variables were expressed as means ± standard deviation (SD) whereas categorical variables were expressed as frequency and percentage for data description. P <0.05 was considered statistically significant. ;

Study Design

Related Conditions & MeSH terms

Airway Management

Clinical Trial Details

NCT number	NCT03845998
Study type	Interventional
Source	Eye & ENT Hospital of Fudan University
Contact
Status	Completed
Phase	N/A
Start date	February 25, 2019
Completion date	May 25, 2019

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See also
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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Compare the Efficacy of Different Laryngeal Mask Size Selection Methods in General Anesthesia in Children

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms