Table 2 Operative and postoperative data

Average rate of nitroglycerin infusion (μg/kg/min)

0.75 ± 0.2115

1.32 ± 0.35

Bleeding score

1 (0.25–1.75)

2 (2–3)

Rescue analgesic needed (n, %)

5 (25%)

12 (60%)

Recovery time (min)

28.1 ± 3.46

26.85 ± 2.56

Surgeon satisfaction

5(5–6)

3.5 (3–4)

Postoperative serum Mg (mmol l⁻¹)

1.10 (0.09)

0.82 (0.20)