Reply to Yu HC: Transversalis fascia Plane block in caesarean section patients ‘J Clin Anesth 2018;52:18’

Following definition of a technique is followed further correspondence, letter to editor or case reports outline the indications of the technique, cadaver studies reveal the mechanism of action and large case series and finally RCT's complete the required evidence for routine clinical use [3]. In addition for patients undergoing spinal anesthesia, we also administer 1 g of paracetamol IV in the recovery room. [...]studies evaluating the ideal volume and concentration of TFPB, and revealing the mechanism of action and posterior spread of TFPB via anatomical and imaging studies will also be useful.