After standard preparation (monitoring, intravenous access, sterile preparation of the needle insertion area, and skin anesthesia), the nerve stimulation needle is connected to a nerve stimulator. The needle insertion site is 1-2 cm distal to the inguinal ligament with an angle of 30-45 degrees and a cephalad direction ( Figure 36-8 ). intra-operative position of the hand. Considering only patients with successful nerve blocks, mean (SD) wrist angula-tion was lower (33 (27) vs. 61 (44) degrees; p = 0.018) and assessment of the hand position was better (11/11 vs. 6/11 rated as 'good';p= 0.04) in the suprascapular group. The addition of a suprascapular nerve block to an After identifying a cross-sectional view of the nerves at the described level, an 80-mm, 22-G needle (Sonoplex, Pajunk, Melsungen, Germany) was inserted using an in plane technique. The perineural injection was performed within 1 mm to the epineurium as per standard peripheral nerve block to ensure free flow of solution. patented by PAJUNK@' ensures maximum insulation of the cannula. Nerve or muscle stimulation is provided solely via the electrically conductive contact point and the grinding Denormandie P., Lautridou C. , Parratte B. , Genet F. Manual needle placement: Accuracy of botulinum toxin A injections, Muscle & Nerve 2012 October; 46: 531—534 our results are in agreement with findings from our earlier clinical study demonstrating that low-current nerve stimulation does not result in significant discomfort to the patient. 24 similarly, koscielniak-nielson et al. 25 found no difference in a patient's perception of electrical stimulation as being painful using "short" (0.1 ms) and "long" … Stimulation of the obturator nerve during TURBT can result in sudden and unexpected adductor spasm which can (Lafayette Instrument Manual Muscle Test System, Lafayette the inguinal crease. Once the adductor and pectineus muscles were identified , a 21-gauge SonoPlex needle (PAJUNK Medical Systems L.P., Norcross, Georgia, USA) was muscle, a 21-gauge needle (SonoTAP needle 80 mm; Pajunk GmbH, Geisingen, Germany) was inserted directly into the nerve or as close as possible next to the nerve using a lateral-to-medial inline puncture technique, with the transducer held par-allel to the clavicle. Then, 0.1 mL of indocyanine green (ICG- A 22-gauge block needle (SonoPlex Stimcannula, Pajunk Mediztechnologie, Geisingen, Germany) attached to a nerve stimulator (MultiStimSwitch, Pajunk Mediztechnologie, Geisingen, Germany) set at a current of 1.5 mA (pulse width=0.3 ms; frequency=2 Hz) was then inserted. Paresthesias were sought along the lateral aspect of the thigh. Recently available nerve stimulators display calculated EI for pulsatile stimulation (as per the User Manual for the Stimuplex HNS 12, B. Braun Medical). That is, the information is accessible in commercially available nerve stimulators, but the question remains as to how it should be interpreted. Nerve stimulation threshold: A nerve stimulation threshold of less than 0.2 mA may suggest intraneural needle-tip location or needle-nerve contact. 29,30 When used alone, nerve stimulation lacks sensitivity 31 and should therefore be used in conjunction with other monitoring as described in this section. Observation of a motor response High-reliability Nerve Stimulator for Aiding Regional Anesthesia Procedures. January 2015; IFMBE proceedings 51:1351-1354; DOI:10.1007/