1. Study focused on esophageal squamous cell carcinoma patients undergoing surgery
2. Smokers had higher rates of major postoperative complications, particularly pulmonary issues
3. Active smokers had significantly higher 30-day mortality rates compared to former smokers
4. Smoking did not independently impact long-term outcomes when other clinical factors were considered
5. Lack of data on smoking behavior after surgery was a key limitation
6. Previous studies have shown that quitting smoking following a cancer diagnosis may improve survival
7. Smoking cessation remains crucial in preoperative care for these patients

Source: Surgery