A comparison of three variable performance devices for postoperative oxygen therapy

Area of Science:

• Critical Care Medicine
• Respiratory Therapy
• Surgical Patient Management

Background:

• Postoperative patients in intensive care often require supplemental oxygen.
• Nasogastric tubes and facemasks are common in major abdominal surgery patients.
• Variable performance oxygen delivery devices are frequently indicated in this population.

Purpose of the Study:

• To compare the efficacy of different oxygen delivery devices in intensive care unit (ICU) patients.
• To evaluate oxygenation parameters (PaO2, PaCO2, SpO2) with Hudson mask, nasal cannulae, and a novel nasal catheter with foam collar.
• To assess patient comfort and compliance with various oxygen delivery methods.

Main Methods:

• Randomized controlled trial involving eleven ICU patients post-major abdominal surgery.
• Oxygen administration at 4 L/min via Hudson mask, nasal cannulae, or nasal catheter with foam collar.
• Measurement of arterial oxygen (PaO2), arterial carbon dioxide (PaCO2), and oxygen saturation (SpO2).

Main Results:

• Significantly greater PaO2 achieved with the nasal catheter (p < 0.01) and Hudson mask (p < 0.05) compared to nasal cannulae.
• No significant differences in PaCO2 or SpO2 between the tested devices.
• The nasal catheter with foam collar demonstrated superior PaO2 compared to nasal cannulae in patients with nasogastric tubes.

Conclusions:

• Nasal oxygen delivery devices may be preferable for postoperative ICU patients due to comfort and compliance.
• The nasal catheter with a foam collar is an effective alternative for oxygenation, showing improved PaO2 over nasal cannulae.
• Hudson masks also provide effective oxygenation compared to nasal cannulae in this patient group.