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Is muscle relaxant necessary for cardiac surgery?
G Gueret1, B Rossignol, G Kiss
1Département d'Anesthésie Réanimation, Centre Hospitalier la Cavale Blanche, Brest, France.
Anesthesia and Analgesia
|October 27, 2004
Summary
A single dose of atracurium or cisatracurium is sufficient for cardiac surgery, eliminating the need for continuous neuromuscular blockade. This approach ensures efficient paralysis and quicker recovery, supporting fast-track cardiac surgery protocols.
Area of Science:
- Anesthesiology
- Pharmacology
Background:
- Continuous neuromuscular blockade in cardiac surgery remains controversial.
- The necessity for complete paralysis throughout cardiac procedures is not well-established.
Purpose of the Study:
- To investigate the efficacy of a single dose of atracurium versus cisatracurium in cardiac surgery.
- To assess recovery times, residual paralysis, and surgical conditions.
Main Methods:
- 87 patients undergoing cardiac surgery with normothermic cardiopulmonary bypass received either atracurium or cisatracurium.
- Neuromuscular blockade recovery was monitored using train-of-four ratio.
- Incidence of patient movement and surgical conditions were recorded.
Main Results:
- Cisatracurium showed a slightly longer delay to recovery (train-of-four ratio >0.9) compared to atracurium (97 vs. 86 minutes).
- All patients achieved full recovery by the end of surgery.
- No significant differences in extubation delay were observed between groups.
Conclusions:
- Continuous neuromuscular blockade is unnecessary in cardiac surgery.
- A single dose of atracurium or cisatracurium provides adequate paralysis and facilitates faster recovery.
- This supports the use of single-dose neuromuscular blockers in fast-track cardiac surgery.