The Clinical Efficacy of Laryngeal Mask Airway in Elderly Patients: Comparison With Young Adults

Yonsei University

Status: Completed

Conditions: Lower Extremity Surgery; Minor Urologic Surgery

Treatments: Procedure: classic LMA insertion

Study type: Interventional

Funder types: Other

Identifiers

NCT01836419

4-2012-0711

Details and patient eligibility

About

There are some differences between elderly and young adult patients regarding the anatomy of upper airways. Elderly patients have larger upper airways than young adult patients at all pharyngeal levels as revealed by CT. Another study explained that there is a progressive descent of the larynx and epiglottis with aging, which lengthens the upper airway and possibly makes it more likely to collapse.

The aim of this study is to compare the clinical efficacy of laryngeal mask airway (LMA) in elderly patients with young adults. In this study, the investigators will measure the ease of insertion, success rate of insertion, the time of insertion, oropharyngeal leak pressure, gastric leak pressure, fiberoptic position and intraoperative complications of the classic LMA.

Enrollment: 100 patients

Sex: All

Ages: 20 to 85 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients aged 20-40 and 65-85years
• ASA status 1-2
• Undergoing minor urologic surgery or lower extremity surgery
• Undergoing general anesthesia using classic LMA

Exclusion criteria

• Predicted difficult airway
• Increased risk of aspiration
• Gastroesophageal reflux
• Neuromuscular disease
• Significant acute or chronic lung disease

Trial design

Primary purpose: Treatment

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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100 participants in 2 patient groups

young adult group

Experimental group

Description:

young adult patients undergoing minor urologic surgery or lower extremity surgery

Treatment:

Procedure: classic LMA insertion

elderly group

Active Comparator group

Description:

elderly patients undergoing minor urologic surgery or lower extremity surgery

Treatment:

Procedure: classic LMA insertion