Transversus Abdominis Plane Block Versus Wound Infiltration for Postcesarean Analgesia

Not Applicable

Completed

Conditions: Postcesarean Analgesia

Interventions: Procedure: Spinal anesthesia
Drug: Intrathecal bupivacaine
Drug: Intrathecal fentanyl
Procedure: Cesarean delivery
Procedure: Wound infiltration
Procedure: Transversus abdominis plane block
Procedure: Sham procedure
Drug: Paracetamol
Drug: Ketorolac
Procedure: Fentanyl patient-controlled analgesia

Registration Number: NCT02691572

Lead Sponsor: Mansoura University

Brief Summary: The study will compare the analgesic efficacy of transversus abdominis plane block and wound infiltration in parturients undergoing cesarean delivery under spinal anesthesia.

Detailed Description: This randomized, controlled, double-blind study will be conducted on ASA physical status II parturients with full-term singleton pregnancy undergoing elective cesarean delivery under spinal anesthesia. Patients will receive either ultrasound-guided transversus abdominis plane block or wound infiltration at the end of surgery. After delivery, all patients will receive standard analgesia (intravenous ketorolac and oral paracetamol) and patient-controlled analgesia with intravenous fentanyl. Total fentanyl consumption at 24 h, pain scores at 2, 4, 6, 12, and 24 h, side effects, and patient satisfaction will be compared between the 2 groups.

Recruitment & Eligibility

Status: COMPLETED

Sex: Female

Target Recruitment: 80

Inclusion Criteria

American Society of Anesthesiologists physical status II
Full-term singleton pregnancy

Exclusion Criteria

Age <19 or > 40 years
Height <150 cm
Weight <60 kg
Body mass index ≥40 kg/m2
Contraindications to spinal anesthesia (patient refusal, increased intracranial tension, coagulopathy, uncorrected hypovolemia)
Hypersensitivity to any of the drugs used in the study
Significant cardiovascular, renal, or hepatic disease
Known fetal abnormalities
Emergency situations

Study & Design

Study Type: INTERVENTIONAL

Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Transversus abdominis plane block	Intrathecal bupivacaine	Cesarean delivery performed under spinal anesthesia (intrathecal bupivacaine 12.5 mg and intrathecal fentanyl 15 µg). After completion of surgery, bilateral ultrasound-guided TAP block will be performed using 20 mL bupivacaine 0.25% on each side. Standard analgesia (ketorolac and paracetamol) and fentanyl patient-controlled analgesia will be administered postoperatively.
Wound Infiltration	Wound infiltration	Cesarean delivery performed under spinal anesthesia (intrathecal bupivacaine 12.5 mg and intrathecal fentanyl 15 µg). At the end of surgery, 30 mL bupivacaine 0.25% will be injected subcutaneously in the surgical wound (15 mL on the upper and lower sides) by the obstetrician before skin suturing. Sham procedure will be performed after surgery. Standard analgesia (ketorolac and paracetamol) and fentanyl patient-controlled analgesia will be administered postoperatively.
Transversus abdominis plane block	Spinal anesthesia	Cesarean delivery performed under spinal anesthesia (intrathecal bupivacaine 12.5 mg and intrathecal fentanyl 15 µg). After completion of surgery, bilateral ultrasound-guided TAP block will be performed using 20 mL bupivacaine 0.25% on each side. Standard analgesia (ketorolac and paracetamol) and fentanyl patient-controlled analgesia will be administered postoperatively.
Wound Infiltration	Spinal anesthesia	Cesarean delivery performed under spinal anesthesia (intrathecal bupivacaine 12.5 mg and intrathecal fentanyl 15 µg). At the end of surgery, 30 mL bupivacaine 0.25% will be injected subcutaneously in the surgical wound (15 mL on the upper and lower sides) by the obstetrician before skin suturing. Sham procedure will be performed after surgery. Standard analgesia (ketorolac and paracetamol) and fentanyl patient-controlled analgesia will be administered postoperatively.
Wound Infiltration	Intrathecal bupivacaine	Cesarean delivery performed under spinal anesthesia (intrathecal bupivacaine 12.5 mg and intrathecal fentanyl 15 µg). At the end of surgery, 30 mL bupivacaine 0.25% will be injected subcutaneously in the surgical wound (15 mL on the upper and lower sides) by the obstetrician before skin suturing. Sham procedure will be performed after surgery. Standard analgesia (ketorolac and paracetamol) and fentanyl patient-controlled analgesia will be administered postoperatively.
Wound Infiltration	Cesarean delivery	Cesarean delivery performed under spinal anesthesia (intrathecal bupivacaine 12.5 mg and intrathecal fentanyl 15 µg). At the end of surgery, 30 mL bupivacaine 0.25% will be injected subcutaneously in the surgical wound (15 mL on the upper and lower sides) by the obstetrician before skin suturing. Sham procedure will be performed after surgery. Standard analgesia (ketorolac and paracetamol) and fentanyl patient-controlled analgesia will be administered postoperatively.
Wound Infiltration	Sham procedure	Cesarean delivery performed under spinal anesthesia (intrathecal bupivacaine 12.5 mg and intrathecal fentanyl 15 µg). At the end of surgery, 30 mL bupivacaine 0.25% will be injected subcutaneously in the surgical wound (15 mL on the upper and lower sides) by the obstetrician before skin suturing. Sham procedure will be performed after surgery. Standard analgesia (ketorolac and paracetamol) and fentanyl patient-controlled analgesia will be administered postoperatively.
Wound Infiltration	Intrathecal fentanyl	Cesarean delivery performed under spinal anesthesia (intrathecal bupivacaine 12.5 mg and intrathecal fentanyl 15 µg). At the end of surgery, 30 mL bupivacaine 0.25% will be injected subcutaneously in the surgical wound (15 mL on the upper and lower sides) by the obstetrician before skin suturing. Sham procedure will be performed after surgery. Standard analgesia (ketorolac and paracetamol) and fentanyl patient-controlled analgesia will be administered postoperatively.
Wound Infiltration	Fentanyl patient-controlled analgesia	Cesarean delivery performed under spinal anesthesia (intrathecal bupivacaine 12.5 mg and intrathecal fentanyl 15 µg). At the end of surgery, 30 mL bupivacaine 0.25% will be injected subcutaneously in the surgical wound (15 mL on the upper and lower sides) by the obstetrician before skin suturing. Sham procedure will be performed after surgery. Standard analgesia (ketorolac and paracetamol) and fentanyl patient-controlled analgesia will be administered postoperatively.
Transversus abdominis plane block	Cesarean delivery	Cesarean delivery performed under spinal anesthesia (intrathecal bupivacaine 12.5 mg and intrathecal fentanyl 15 µg). After completion of surgery, bilateral ultrasound-guided TAP block will be performed using 20 mL bupivacaine 0.25% on each side. Standard analgesia (ketorolac and paracetamol) and fentanyl patient-controlled analgesia will be administered postoperatively.
Transversus abdominis plane block	Paracetamol	Cesarean delivery performed under spinal anesthesia (intrathecal bupivacaine 12.5 mg and intrathecal fentanyl 15 µg). After completion of surgery, bilateral ultrasound-guided TAP block will be performed using 20 mL bupivacaine 0.25% on each side. Standard analgesia (ketorolac and paracetamol) and fentanyl patient-controlled analgesia will be administered postoperatively.
Transversus abdominis plane block	Fentanyl patient-controlled analgesia	Cesarean delivery performed under spinal anesthesia (intrathecal bupivacaine 12.5 mg and intrathecal fentanyl 15 µg). After completion of surgery, bilateral ultrasound-guided TAP block will be performed using 20 mL bupivacaine 0.25% on each side. Standard analgesia (ketorolac and paracetamol) and fentanyl patient-controlled analgesia will be administered postoperatively.
Transversus abdominis plane block	Intrathecal fentanyl	Cesarean delivery performed under spinal anesthesia (intrathecal bupivacaine 12.5 mg and intrathecal fentanyl 15 µg). After completion of surgery, bilateral ultrasound-guided TAP block will be performed using 20 mL bupivacaine 0.25% on each side. Standard analgesia (ketorolac and paracetamol) and fentanyl patient-controlled analgesia will be administered postoperatively.
Transversus abdominis plane block	Transversus abdominis plane block	Cesarean delivery performed under spinal anesthesia (intrathecal bupivacaine 12.5 mg and intrathecal fentanyl 15 µg). After completion of surgery, bilateral ultrasound-guided TAP block will be performed using 20 mL bupivacaine 0.25% on each side. Standard analgesia (ketorolac and paracetamol) and fentanyl patient-controlled analgesia will be administered postoperatively.
Wound Infiltration	Ketorolac	Cesarean delivery performed under spinal anesthesia (intrathecal bupivacaine 12.5 mg and intrathecal fentanyl 15 µg). At the end of surgery, 30 mL bupivacaine 0.25% will be injected subcutaneously in the surgical wound (15 mL on the upper and lower sides) by the obstetrician before skin suturing. Sham procedure will be performed after surgery. Standard analgesia (ketorolac and paracetamol) and fentanyl patient-controlled analgesia will be administered postoperatively.
Wound Infiltration	Paracetamol	Cesarean delivery performed under spinal anesthesia (intrathecal bupivacaine 12.5 mg and intrathecal fentanyl 15 µg). At the end of surgery, 30 mL bupivacaine 0.25% will be injected subcutaneously in the surgical wound (15 mL on the upper and lower sides) by the obstetrician before skin suturing. Sham procedure will be performed after surgery. Standard analgesia (ketorolac and paracetamol) and fentanyl patient-controlled analgesia will be administered postoperatively.
Transversus abdominis plane block	Ketorolac	Cesarean delivery performed under spinal anesthesia (intrathecal bupivacaine 12.5 mg and intrathecal fentanyl 15 µg). After completion of surgery, bilateral ultrasound-guided TAP block will be performed using 20 mL bupivacaine 0.25% on each side. Standard analgesia (ketorolac and paracetamol) and fentanyl patient-controlled analgesia will be administered postoperatively.

Primary Outcome Measures

Name	Time	Method
Cumulative Fentanyl Dose	24 h

Secondary Outcome Measures

Name	Time	Method
Cumulative Fentanyl Dose	2, 4, 6, 12 h
Level of Sedation	24 h	Assessed using a 4-point scale (1 = awake and alert, 2 = minimally sedated, responds to speech, 3 = moderately sedated, rousable by tactile stimulation, 4 = deeply sedated, rousable only with painful stimulation).
Number of Patients With Pruritis	24 h	The occurrence of pruritis will be assessed by yes/no question and recorded.
Number of Patients With Nausea and/or Vomiting	24 h	The occurrence of nausea and/or vomiting will be observed and recorded.
Time to the First Postoperative Fentanyl Administration	24 h
Pain Scores at Rest and Movement	2, 4, 6, 12, and 24 h	Assessed using 11-point verbal rating scale (0 = no pain, 10 = the worst possible pain), at rest and movement.
Level of Patient Satisfaction	24 h	Assessed at 24 h using a 5-point scale (1 = very unsatisfied, 2 = unsatisfied, 3 = fair, 4 = satisfied, 5 = very satisfied).