Table 1.
Characteristics of the included studies.
| Author (publication year) | Age of patients (years) | Surgery | Anesthesia | Number of patients | Technology of TAP block/WI | Drug | Operative site |
|---|---|---|---|---|---|---|---|
| Atim, A. [17] (2011) |
Adults (30-63) | Hysterectomy | GA | TAP (18), WI (19) | US-guided bilateral injection/incision site infiltration | Bupivacaine | Lower abdomen |
| Ortiz, J. [10] (2012) |
Adults (18-64) | Laparoscopic cholecystectomy | GA | TAP (39), WI (35) | US-guided bilateral injection/trocar insertion site infiltration | Bupivacaine | Upper abdomen |
| Tolchard, S. [11] (2012) |
Adults (>16) | Laparoscopic cholecystectomy | GA | TAP (21), WI (22) | US-guided bilateral injection//trocar insertion site infiltration | Bupivacaine | Upper abdomen |
| Skjelsager, A. [23] (2013) |
Adults (18-80) | Open radical prostatectomy | GA | TAP (23), WI (25) | US-guided bilateral injection/incision site infiltration | Bupivacaine | Lower abdomen |
| Aydogmus, M. T. [18] (2014) | Pregnant women (23-35) | Cesarean delivery | GA | TAP (35), WI (35) | US-guided bilateral injection/incision site infiltration | Levobupivacaine | Lower abdomen |
| Ibrahim, M. [12] (2014) |
Adults (>18) | Laparoscopic sleeve gastrectomy | GA | TAP (21), WI (21) | US-guided bilateral injection/trocar insertion site infiltration | Bupivacaine | Upper abdomen |
| Elamin, G. [13] (2015) |
Adults (18-85) | Elective laparoscopic cholecystectomy | GA | TAP (40), WI (40) | Laparoscope-guided bilateral injection/trocar insertion site infiltration | Bupivacaine | Upper abdomen |
| Gorkem, U. [19] (2017) |
Pregnant women (18-45) | Cesarean delivery | GA | TAP (42), WI (46) | US-guided bilateral injection/incision site infiltration | Bupivacaine | Lower abdomen |
| Rashid, A. [14] (2017) |
Adults (>18) | Elective laparoscopic colonic surgery | GA | TAP (28), WI (28) | US-guided bilateral injection/trocar insertion site infiltration | Bupivacaine | Lower abdomen |
| Tawfik, M. M. [20] (2017) | Pregnant women (22-31) | Cesarean delivery | SA | TAP (39), WI (39) | US-guided bilateral injection/incision site infiltration | Bupivacaine | Lower abdomen |
| El sharkwy, I. A. [21] (2018) | Women (>18) | Gynecologic laparoscopy | GA | TAP (42), WI (40) | US-guided bilateral injection/trocar insertion site infiltration | Bupivacaine | Lower abdomen |
| Kargar, R. [22] (2018) |
Adults (18-50) | Laparoscopic excision of endometriosis | GA | TAP (24), WI (21) | US-guided bilateral injection/trocar insertion site infiltration | Bupivacaine | Lower abdomen |
| Li, Q. [24] (2018) |
Adults (18-75) | Peritoneal dialysis catheter implantation | SA | TAP (20), WI (20) | US-guided unilateral injection/incision site infiltration | Ropivacaine | Lower abdomen |
| Mughal, A. [15] (2018) |
Adults (18-80) | Total extraperitoneal inguinal hernia repair | GA | TAP (30), WI (30) | Laparoscope-guided unilateral injection/incision site infiltration | Bupivacaine | Lower abdomen |
| Ruiz-Tovar [16] (2018) |
Adults (41-48) | Laparoscopic Roux-en-Ygastric bypass | GA | TAP (70), WI (70) | Laparoscope-guided bilateral injection/trocar insertion site infiltration | Bupivacaine | Upper abdomen |
GA: general anesthesia; SA: spinal epidural anesthesia; TAP: transversus abdominis plane; WI: wound infiltration; US: ultrasound.