High-flow nasal cannula (HFNC) is a device that delivers10 to 70 L min-1 of heated, humidified 100% oxygen via nasal route. It provides positive airway pressure, decreases dyspnea, decreases the work of breathing, and improves comfort
Beneficial effects of the HFNC system have been assessed based on 3 physiologic conditions: decreased dead space, a high concentration of inspiratory oxygen, and positive pressure in the oro-laryngeal cavity.Studies have shown that it improves oxygenation in various perioperative settings such as the apneic patients, patients with respiratory failure , and patients undergoing bronchoscopy
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
SINGLE
Enrollment
60
using sedation with the HFNC F\&P AIRVOTM 2 to maintain oxygenation
using general anaesthesia with one lung ventilation (OLV) technique
Rehab Abd Elraof Abd Elaziz
Alexandria, Egypt
RECRUITINGarterial partial pressures of oxygen
an arterial blood sample will be taken after induction of anaesthesia then every 10 min till the end of the operation.
Time frame: two hours
pH measurement
an arterial blood sample will be taken after induction of anaesthesia then every 10 min till the end of the operation.
Time frame: two hours
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