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Effect of PEEP on Arterial Oxygen Partial Pressure in Elderly Patients With Lithotomy Position Using LMA Supreme™

Prostatic Neoplasms Clinical Trial

Official title:
Effect of Positive End-expiratory Pressure on Arterial Oxygen Partial Pressure in Elderly Patients Undergoing Urologic Surgery Using LMA Supreme™ in Lithotomy Position

Clinical Trial Summary

The purpose of the present study is to compare the effect of PEEP on arterial oxygen partial pressure in elderly patients undergoing urologic surgery using LMA supreme™ in a lithotomy position.

Clinical Trial Description

Positive end-expiratory pressure (PEEP) during general anesthesia with mechanical ventilation is routinely used as a standard lung protective strategy to prevent postoperative pulmonary complications including atelectasis.

In urologic surgery, elderly patients are common. Since aging decreases the elasticity of lung tissues and allowing the collapse of small airways, old age is a risk factor for postoperative atelectasis. Lithotomy position is the preferred position in urologic surgery. However, it causes the abdominal viscera to displace the diaphragm cephalad, reducing lung compliance and resulting atelectasis. Therefore, in elderly patients undergoing urologic surgery with lithotomy position, PEEP may be essential to prevent postoperative atelectasis.

Laryngeal mask airway (LMA) has been widely used in urologic surgery with lithotomy position because of short surgical time and no necessity of administration of muscle relaxant. However, application of PEEP when using LMA is still controversy. Therefore, in the present study, we aimed to compare the effect of PEEP on arterial oxygen partial pressure in elderly patients undergoing urologic surgery using LMA supreme™ in a lithotomy position. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03390127
Study type Interventional
Source Asan Medical Center
Contact
Status Completed
Phase N/A
Start date January 5, 2018
Completion date March 21, 2018
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