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

Not Applicable

Completed

• Conditions: Minor Urologic Surgery; Lower Extremity Surgery
• Interventions: Procedure: classic LMA insertion

• Registration Number: NCT01836419
• Lead Sponsor: Yonsei University

Brief Summary

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.

Detailed Description

Not available

Basic Information
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Recruitment & Eligibility
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Study & Design
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Trial Locations

Study Timeline

• Study Start: 2012-12
• Study First Submitted: 2013-04-16
• Study First Submitted QC: 2013-04-18
• Study First Posted: 2013-04-19
• Primary Completion: 2013-11
• Study Completion: 2013-11
• Status Verified: 2014-02
• Last Update Submitted: 2014-02-17
• Last Update Posted: 2014-02-19

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 100

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

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Exclusion Criteria

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

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
young adult group	classic LMA insertion	young adult patients undergoing minor urologic surgery or lower extremity surgery
elderly group	classic LMA insertion	elderly patients undergoing minor urologic surgery or lower extremity surgery

Primary Outcome Measures

Name	Time	Method
oropharyngeal leak pressure	24 hours	After successful placement of LMA, airway leak pressure was determined by adjusting the expiratory valve of the breathing circle to 40 cmH2O(fixed fresh gas flow 3 L/min) and recording the pressure when equilibrium was reached.

Trial Locations

Locations (1)

Severance hospital; 🇰🇷 Seoul, Korea, Republic of