The degree of secretion was significantly less in the atropine group compared with the control group at the end of the procedure (VAS score: 16.5 ± 9.9 vs. 27.0 ± 15.9, atropine vs. control, p = 0.00). The change in the degree of secretion between the start and end of the procedure was significantly greater in the atropine group than in the control group (p = 0.00) (Fig. 2). However, the frequency of hypersalivation as predefined (VAS score ≥50) did not differ between the groups (p = 0.06).