Corrigendum to “Advances of Techniques in Deep Regional Blocks”

Table 1

Qualitative analysis of injection pressure for the half-the-air setting.

Compressed air volume	50% (half-the-air) (5 ml compression)			60% (6 ml compression)
Repeated experiments	Set 1	Set 2	Set 3	Set 1	Set 2	Set 3
Step 1: not open to the needle
Step 2: maintaining step 1 pressure and then open to the needle
				Unable to assess the pressure by alarm in a consecutive (step 1 and then step 2) manner.; (already alarmed in step 1)

By using the pressure management system of Injectomat Agilia pump (Fresenius Vial, Brezins, France) as an in-line manometer, pressure within the half-the-air setting (ten milliliters of air was aspirated into the syringe above 10 ml local anesthetic [LA]) was assessed by adding an extra three-way stopcock between the needle (the tip inserted 3 cm into the pork) and the low-dead space extension tube with the side female luer lock connecting to the Agilia syringe pump via a pressure tube. The syringe pump was set to a minimal infusion rate of 0.1 ml/h and a pressure limit of 750 mmHg. Each experiment was run in triplicate. Green dot: “without” pressure (occlusion) alarm within 5 sec of injection. Red dot: “with” pressure (occlusion) alarm within 5 sec of injection. D5W: 5% dextrose water.