Perioperative hypoxaemia detected by intermittent pulse oximetry

Area of Science:

• Anesthesiology
• Surgical Care
• Respiratory Monitoring

Background:

• Perioperative oxygenation management is critical for surgical patient outcomes.
• Clinical assessment of oxygenation may be insufficient in detecting hypoxemia.
• Pulse oximetry offers a rapid and non-invasive method for monitoring oxygen saturation.

Purpose of the Study:

• To audit the management of perioperative oxygenation in abdominal surgical patients.
• To evaluate the effectiveness of clinical assessment versus pulse oximetry in identifying desaturation.
• To determine if intermittent pulse oximetry can improve oxygen prescribing practices.

Main Methods:

• One hundred consecutive abdominal surgical patients underwent perioperative pulse oximetry.
• Monitoring included preoperative, recovery room, and daily ward measurements until discharge or postoperative day six.
• Oxygen therapy was prescribed and continued during measurements.

Main Results:

• Twenty-nine patients (29%) experienced oxygen saturation of 90% or less on 51 occasions.
• Seven patients receiving prophylactic oxygen therapy had it stopped prematurely and subsequently showed low saturation.
• Clinical assessment of oxygenation and the need for oxygen therapy was found to be inadequate in this group.

Conclusions:

• Intermittent pulse oximetry is a simple and rapid method for detecting arterial hemoglobin desaturation.
• Routine use of pulse oximetry can enhance the accuracy of oxygen prescribing in the perioperative period.
• Improved monitoring could lead to better patient outcomes and more appropriate oxygen use.