Use of neuromuscular blockade (NMB) may improve the surgical work space in patients scheduled for laparoscopic surgical cases (e.g. hysterectomy, ovarian cystectomy, myomectomy). Clinical studies investigating this question often use a numerical or verbal rating scale for subjective evaluation of the surgical workspace. However, no good subjective rating scale have been developed or validated. Neither have possible inter-individual differences in use of such subjective scales been described.

Purpose:

The aim of this study is to validate different subjective rating scales to determine which scale is most useful among surgeons.

Inclusion Criteria:

• patients > 18 years old
• elective gynecologic laparoscopic operation
• can read and understand Danish
• informed consent

Exclusion Criteria:

• BMI > 30 kg/cm2
• known allergy to medications that are included in the project
• severe renal disease, defined by S-creatinine> 0,200 mmol/L, GFR < 30ml/min or hemodialysis)
• neuromuscular disease that may interfere with neuromuscular data
• lactating or pregnant
• impaired liver function
• converting to laparotomy
• perioperative use of neuromuscular blocking agents before randomization
• pneumoperitoneum set to >12 mmHg on the insufflator