Cardiothoracic & vascular anesthesia

Serum Levels of Bupivacaine After Bilateral Ultrasound-Guided Deep Parasternal Intercostal Plane Block in Cardiac Surgery with Median Sternotomy

J Cardiothorac Vasc AnesthPublished Prospective observational study

Authors' conclusion

Bilateral PIP placed at the end of cardiac surgery resulted in low systemic bupivacaine levels. The inclusion of additives shortened Tmax without improving outcome.

Study context

Population
Adults undergoing cardiac surgery with median sternotomy receiving bilateral ultrasound-guided deep parasternal intercostal plane (parasternal intercostal plan (PIP)) block with 2.5 mg/kg bupivacaine with or without dexamethasone and dexmedetomidine
Participants
28 adults
Outcome
Serum bupivacaine pharmacokinetics
Methodological detailssingle-centre, academic university hospital
  • Single-centre
  • Academic university hospital

Main finding

As reported in the abstract

Mean peak bupivacaine concentration (± 0.62 µg/mL)

0.60 µg/mL

Mean Tmax (± 12.97 minutes)

16.92 minutes

Concentration >2.0 µg/mL within 15 minutes of block placement, 2 patients

7.1%

Observational data: associations, not effects.

Further findings

Tmax, no additives vs additives · significantly greater without additives

P = 0.004

Time to extubation and postoperative pain, additives vs none

Not improved with additives

Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.

Original publication

Serum Levels of Bupivacaine After Bilateral Ultrasound-Guided Deep Parasternal Intercostal Plane Block in Cardiac Surgery with Median Sternotomy. J Cardiothorac Vasc Anesth. Published 8 June 2024. doi:10.1053/j.jvca.2024.06.006

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