Ultrasound-guided peripheral nerve blocks in anticoagulated patients - case series
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2017
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Martins, Luis Eduardo Silveira [UNIFESP]
Ferraro, Leonardo Henrique Cunha [UNIFESP]
Takeda, Alexandre [UNIFESP]
Munechika, Masashi [UNIFESP]
Tardelli, Maria Angela [UNIFESP]
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Background and objectives: The advent of ultrasound has brought many benefits to peripheral nerve blocks. It includes both safety and effectiveness, given the possibility of visualizing the neurovascular structures and the needle during the procedure. Despite these benefits, there is no consensus in the literature on the use of this technique in anticoagulated patients or with other coagulation disorders. Moreover, peripheral blocks vary in depth, spreadability, and possibility of local compression. However, few societies take it into account when drawing up its recommendations, establishing a single recommendation for performing peripheral blocks, regardless of the route used. The objective of this series is to expand the discussion on peripheral nerve block in anticoagulated patients. Case reports: This series reports 9 cases of superficial peripheral nerve blocks guided by ultrasound in patients with primary or secondary dyscrasias. All blocks were performed by experienced anesthesiologists in the management of ultrasound, and there was no bruising or neurological injuries in the cases. Conclusions: This case series support the discussion on conducting surface peripheral nerve blocks and easy local knowledge as the axillary, interscalene, femoral, saphenous or popliteal in anticoagulated patients, on dual antiaggregation therapy and/or with other coagulation disorders, provided that guided by ultrasound and performed by an anesthesiologist with extensive experience in guided nerve blocks. However, larger series should be performed to prove the safety of the technique for these patients. (C) 2016 Sociedade Brasileira de Anestesiologia. Published by Elsevier Editora Ltda.
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Revista Brasileira De Anestesiologia. New York, v. 67, n. 1, p. 100-106, 2017.