Perfusion index and ultrasonography in the evaluation of infraclavicular block.

Perfusion index and ultrasonography in the evaluation of infraclavicular block. Minerva Anestesiol. 2019 01 04;: Authors: Bereket MM, Aydin BG, Küçükosman G, Pişkin Ö, Okyay RD, Ayoğlu FN, Ayoğlu H Abstract BACKGROUND: It has been reported that noninvasive, objective tests are needed for determining the success of peripheral nerve blocks because conventional methods necessitate the cooperation of the patient. It is also known that the brachial plexus block causes vasodilatation and an increase in blood flow due to its sympathectomy effect. Our study aimed to determine whether perfusion index and measured regional hemodynamic changes using ultrasound were reliable parameters in evaluating the early success of an infraclavicular block. METHODS: Forty ASA I-III patients who were administered a successful infraclavicular block were included in this study. In addition to the baseline hemodynamic measurements, perfusion index (PI) and regional hemodynamic parameters, such as brachial artery diameter (BAD), brachial arterial area (BAA), blood flow (BF), end-diastolic velocity (EDV) and resistance index (RI), peak systolic velocity (PSV), and time average velocity (TAV), were measured. After completing the block procedure, all values were rerecorded at the 10th, 20th, and 30th minutes. Patients with a successful block in the first 10 minutes were assigned to Group A, while patients with a successful block after t...
Source: Minerva Anestesiologica - Category: Anesthesiology Tags: Minerva Anestesiol Source Type: research