Parameter Mean ± SD Group E (N=50) Group D (N=50) P value VAS score 3.2 ± 0.9 4.5 ± 0.4 P= 0. 2 Surgeon satisfaction 2.6 ± 0.4 1.4 ± 0.3* P= 0.03 Patient satisfactionwith analgesia and sedation 3.6 ± 0.6 2.8 ± 0.8* P= 0.04 Adverse effect (n, %) Myoclonus (n, %) O2 desaturation (≤92) n, %) Nausea and vomiting (n, %) 11(22% ) 8 (16%)* 1 (2%) 2 (4%) 14(28% )* 1(2% ) 4(8%) 9 (18%) p<0.05 p<0.05 p<0.05 p<0.05 *Indicates statistical significance P<0.05 in comparison with group E

Table 4: VAS score, surgeon satisfaction, patients satisfaction and adverse effects in both groups.