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[Use of mivacurium in orthopedic surgery: comparison of 2 different-dose inductions]

C Tarantelli1, M A Pascarella, R Perna

  • 1Istituto di Anestesiologia e Rianimazione, Università degli Studi di Roma, La Sapienza.

La Clinica Terapeutica
|April 7, 1998
PubMed

Insights

This study compared two mivacurium doses for minor orthopedic surgery, finding the higher dose (0.20 mg Kg-1) offered excellent muscle relaxation. While effective for short procedures, the higher mivacurium dose caused a slight blood pressure drop.

Area of Science:

  • Anesthesiology
  • Pharmacology

Background:

  • Mivacurium is a short-acting, non-depolarizing neuromuscular blocking agent.
  • Its efficacy and safety profile require evaluation for specific surgical contexts.

Purpose of the Study:

  • To compare the efficiency and safety of two mivacurium induction doses (0.15 mg Kg-1 and 0.20 mg Kg-1).
  • To assess mivacurium's suitability for minor orthopedic surgeries.

Main Methods:

  • A randomized study involving 30 patients undergoing minor orthopedic surgery.
  • Patients were divided into two groups receiving different mivacurium doses.
  • Neuromuscular blockade and hemodynamic parameters were monitored.

Main Results:

  • Mivacurium demonstrated efficiency in short surgical procedures.
  • Excellent muscle relaxation (mioresizing) was observed exclusively in the group receiving 0.20 mg Kg-1.
  • The higher mivacurium dose was associated with a reduction in blood pressure, likely histamine-related.

Conclusions:

  • Mivacurium is effective for short orthopedic surgeries.
  • A higher induction dose (0.20 mg Kg-1) provides superior muscle relaxation.
  • Clinicians should monitor for potential histamine-related adverse effects like hypotension.

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