Ali Hasan
The transverse abdominis plane (TAP) block is a peripheral nerve block designed to anesthetize the nervessupplying the anterior abdominal wall (T6to L1). It wasfirst described in 2001 by Rafi as a traditional blind landmark technique using the lumbartriangle of Petit[2]. The initialtechnique described the lumbar triangle of Petit as the landmark used to access the TAP in order to facilitate the deposition of local anaesthetic solution in the neurovascular plane. Other techniques include ultrasound-guided access to the neurovascular plane via the mid-axillary line between the iliac crest and the costal margin, Open transversus abdominis plane block, and a subcostal access termed the ‘oblique subcostal’ access.
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