• Theodosios Saranteas, Anastasia Alevizou, Tatiana Sidiropoulou, Andreas Mavrogenis, Periklis Tomos, Panagiota Florou, Thomas Papadimos, and Georgia Kostopanagiotou.
• Second Department of Anesthesiology, Athens University Medical School, Athens, Greece. Electronic address: thsaranteas@gmail.com.
• J. Cardiothorac. Vasc. Anesth. 2018 Feb 1; 32 (1): 312-317.

ObjectivesTo evaluate the efficacy of ultrasound-guided interscalene nerve block using an ultralow volume of local anesthetic (5 mL of ropivacaine, 0.75%) for the management of post-thoracotomy shoulder girdle pain.DesignOpen-cohort, prospective, single-center study.SettingUniversity hospital.InterventionsPatients with post-thoracotomy shoulder girdle pain (visual analog scale [VAS] ≥5) received an ultrasound-guided interscalene nerve block.Measurements And Main ResultsThirty minutes after block implementation, the VAS was used to quantify pain across the shoulder girdle. The index (I) was calculated to indicate improvement of pain as follows: [Formula: see text] Nerve bocks resulting in I ≥75% were considered excellent. Total tramadol consumption 36 hours after nerve blocks, patients' satisfaction, and complications related to the procedure also were assessed. Patients were segregated in the following 2 groups: group A, which comprised patients with pain in the shoulder area (glenohumeral and acromioclavicular joints) (n = 30), and group B, which comprised patients with pain in the scapula (n = 17). I was significantly greater in group A (88.3% ± 14%) than in group B (43.2% ± 22%). In groups A and B, 90% and 11% of patients, respectively, demonstrated excellent pain control. Total tramadol consumption in group A, 25 (0-100) mg, was significantly less that of group B, 250 (150-500) mg. Patients' satisfaction also was significantly higher in group A compared with group B. No complications were recorded.ConclusionsUltrasound-guided interscalene nerve block can substantially alleviate post-thoracotomy pain in the shoulder but not in the scapular area.Copyright © 2018 Elsevier Inc. All rights reserved.

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