Comparison of postoperative complications between the two groups
pneumonia, vocal cord paralysis
PNEUMONIA, VOCAL CORD PARALYSIS, POSTOPERATIVE COMPLICATIONS, CHRONIC OBSTRUCTIVE PULMONARY DISEASE, COMPLICATIONS
Compared to patients in the control group, patients in the study group had lower overall incidences of complications (45.2% vs. 20.7% for the control and study groups, respectively; Table 
Comparison of postoperative complications between the two groups
Comparison of pneumonia incidences in patients with vocal cord paralysis or chronic obstructive pulmonary disease between the two groupsCOPD, chronic obstructive pulmonary disease