Ultrasound-guided TF and QL plane block technique
CREST
Ultrasound-guided TFB and QLB were performed in the supine position after securing the airway with I-Gel supraglottic airway by a single anesthesiologist who have good experience in the ultrasound-guided nerve blocks. The skin was sterilized with 10% povidone iodine. The high frequency linear ultrasound transducer of the GE Healthcare Vivid S5 ultrasound machine was also wrapped with a sterilized plastic cover and placed over the skin of the lateral abdominal wall at the midaxillary line midway between the subcostal margin and the iliac crest.