Meta-analysis and trial sequential analysis of randomized evidence comparing general anesthesia vs regional anesthesia for laparoscopic cholecystectomy

Table 3 Anesthetic agents used in the regional anesthesia group in each study

Ref.	Anesthetic agent used
Majedi et al[15]	18 mL of lidocaine 2% plus epinephrine (1:200000) plus 2 mL of sodium bicarbonate 8.4% and fentanyl 50 µg
Sharaf et al[19]	15 mg of hyperbaric bupivicaine and 25 µg fentanyl
Donmez et al[11]	hyperbaric bupivicaine 16mg and fentanyl 10 micrograms
Kalaivani et al[14]	15 mg of hyperbaric bupivicaine and 20 µg fentanyl
Prasad et al[17]	15 mg of heavy bupivicaine and 25 µg fentanyl
Ellakany et al[12]	5 mg plain bupivicaine and 25 µg fentanyl
Tiwari et al[20]	12.5 mg to 17.5 mg of hyperbaric bupivicaine
Bessa et al[5]	15 mg of hyperbaric bupivicaine and 20 mcg fentanyl
Ross et al[18]	20-25 mL of lidocaine 2%
Mehta et al[16]	0.3 mg/kg of hyperbaric bupivicaine 0.5%
Imbelloni et al[13]	15 mg of hyperbaric bupivicaine and 20 µg fentanyl
Bessa et al[21]	15 mg of hyperbaric bupivicaine and 20 µg fentanyl
Tzovaras et al[4]	15 mg of hyperbaric bupivicaine, 0.25 mg morphine and 20 µg fentanyl