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Table 2 IDS Score

From: A comparison of three induction regimens using succinylcholine, vecuronium, or no muscle relaxant: impact on the intraoperative monitoring of the lateral spread response in hemifacial spasm surgery: study protocol for a randomised controlled trial

Parameter Score
Number of attempts > 1 N1
Number of operators > 1 N2
Number of alternative techniques N3
Cormack grade N4
Lifting force required  
 Normal N5 = 0
 Increased N5 = 1
Laryngeal pressure  
 Not applied N6 = 0
 Applied N6 = 1
Vocal cord mobility  
 Abduction N7 = 0
 Adduction N7 = 1