Background Postoperative pulmonary complications (PPCs) are a challenge for anesthesiologists. especially following major surgeries. Using a high-flow nasal cannula (HFNC) postoperatively may decrease this challenge. Purpose The study aimed to assess the clinical effect of HFNC after extubation compared with simple face mask oxygen following major elective upper abdominal surgeries re... https://ashleyshomestores.shop/product-category/induction-range/