The Effect of Nasal Cannula During the First 2 Hours Postoperative in Patient Undergoing Thoracotomy

The Effect of Nasal Cannula During the First 2 Hours Postoperative in Patient Undergoing Thoracotomy

During early postoperative after lung resection surgery, patients without oxygen supplementation may experience hypoxemia. Oxygen supplementation can be given via oxygen mask or cannular. In this study the investigators want to the sudy the effect of oxygen supplementation via oxygen cannular during the first 120 minutes after surgery

Inclusion Criteria:

• age =/> 18 years
• lobectomy or pneumonectomy or wedge resection
• ASA 1-3
• preoperative oxygen saturation < 95 %
• receiving epidural analgesia

Exclusion Criteria:

- cannot communication