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Revista chilena de cirugía

versão On-line ISSN 0718-4026

Resumo

AVALOS J, Nicolás; CABRERA SCH, Carolina; SEMERTZAKIS P, Irini  e  SCHMIED P, Silvia. Analgesic effects of bilateral superficial cervical plexus block with Bupivacaine after thyroidectomy. Rev Chil Cir [online]. 2014, vol.66, n.6, pp.531-535. ISSN 0718-4026.  http://dx.doi.org/10.4067/S0718-40262014000600004.

Background: Bilateral superficial cervical plexus block is a simple non-invasive technique that can be used as preventive analgesia in the perioperative period of thyroidectomy. Aim: to assess the analgesic effects of the technique during the postoperative period of thyroidectomy. Material and Methods: Patients with indication of total thyroidectomy, with a low operative risk according to the American Society of Anesthesiology, were studied. All were operated with general anesthesia using Fentanyl, Propofol, Vecuronium and Isoflurane. Patients were randomly and blindly assigned to superficial cervical plexus block using Bupivacaine 0.25% or to a placebo injection. Postoperative pain, need for analgesics and patient satisfaction were assessed. Results: Thirty five patients aged 55 + 15 years (28 women) were studied. Mean use of morphine in the Bupivacaine and placebo groups was 5.8 and 10.4 mg, respectively (p < 0.05). All and 75% of patients in placebo and Bupivacaine groups respectively, required morphine in some moment of the postoperative period. Nausea and vomiting was observed in 55 and 93% of patients in Bupivacaine and placebo groups, respectively (p < 0.05). Mean Ondansetron use was 2.1 and 4.6 mg in Bupivacaine and placebo groups, respectively (p < 0.05). No significant differences between groups were observed for patient satisfaction. Conclusions: Bilateral superficial cervical plexus block with Bupivacaine reduces analgesic use in the postoperative period of thyroidectomy.

Palavras-chave : Cervical plexus block; analgesia; thyroidectomy.

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