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β-adrenergic antagonists, commonly known as β-blockers, block the effects of sympathetic neurotransmitters such as noradrenaline (NA) and adrenaline (ADR). They have several beneficial effects in heart failure treatment. They reduce heart rate, the force of contraction, and cardiac muscle relaxation. They also slow the atrial-ventricular conduction rate and raise the threshold for arrhythmias. The concentration of β-blockers determines their effects on bronchodilation,...
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Related Experiment Video

Updated: Jun 12, 2025

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
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Deep Parasternal Intercostal Plane Blocks and Their Role in a Cardiac Fast-Track Program.

Amir Zabida1, Karen Foley1, Cristopher Araya Gonzalez1

  • 1Department of Anesthesia and Pain Management, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Canada.

Journal of Cardiothoracic and Vascular Anesthesia
|June 10, 2025
PubMed
Summary
This summary is machine-generated.

Deep parasternal intercostal plane (DPIP) blocks reduced opioid use and hastened extubation in cardiac surgery patients. Further research is needed to mitigate postoperative delirium despite DPIP block benefits.

Keywords:
cardiac surgerydeep parasternal intercostal plane blocksextubation timeopioid consumptionpostoperative delirium

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Area of Science:

  • Anesthesiology and Critical Care Medicine
  • Thoracic Surgery
  • Pain Management

Background:

  • Postoperative pain management after cardiac surgery often relies on opioids, which can lead to adverse effects like delirium.
  • Deep parasternal intercostal plane (DPIP) blocks offer a regional anesthesia approach that may mitigate opioid-related complications.

Purpose of the Study:

  • To evaluate the association between DPIP blocks and reduced opioid consumption post-cardiac surgery.
  • To assess the impact of DPIP blocks on the incidence of postoperative delirium.

Main Methods:

  • A retrospective observational study involving 308 adult patients undergoing cardiac surgery with median sternotomy.
  • Patients received either DPIP blocks under ultrasound guidance or standard care (control group).
  • Opioid consumption, delirium incidence, and time to extubation were compared between groups.

Main Results:

  • DPIP blocks were associated with significantly lower hydromorphone consumption at 12 and 24 hours postoperatively.
  • Patients receiving DPIP blocks experienced earlier tracheal extubation (p=0.04).
  • No significant difference in postoperative delirium incidence or major morbidity/mortality was observed between groups.

Conclusions:

  • DPIP blocks are linked to decreased perioperative opioid requirements and faster extubation following cardiac surgery.
  • DPIP blocks show potential for integration into fast-track cardiac anesthesia protocols.
  • Alternative strategies are necessary to effectively reduce postoperative delirium in this patient population.