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Related Experiment Videos

Partial inferior vena cava snaring to control ischemic left ventricular dysfunction.

Pierre Couture1, André Y Denault, Peter Sheridan

  • 1Department of Anesthesiology, Montreal Heart Institute, 5000 Bélanger Street East, Montreal, Quebec H1T 1C8, Canada. couture.pierre@sympatico.ca

Canadian Journal of Anaesthesia = Journal Canadien D'Anesthesie
|April 3, 2003
PubMed
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Off-pump coronary artery bypass graft surgery can cause pulmonary artery hypertension. Inferior vena cava snaring effectively managed this complication by reducing venous return and improving cardiac function during the procedure.

Area of Science:

  • Cardiovascular Surgery
  • Anesthesiology
  • Critical Care Medicine

Background:

  • Off-pump coronary artery bypass graft (OP-CABG) surgery is a complex procedure.
  • Patients may experience hemodynamic instability.
  • Preoperative assessment of cardiac function is crucial.

Observation:

  • A 63-year-old male patient undergoing elective OP-CABG developed acute pulmonary artery hypertension (PAP) and systemic hypotension.
  • Transesophageal echocardiography revealed decreased systolic function and restrictive diastolic filling.
  • Hemodynamic instability was unresponsive to standard vasopressors.

Findings:

  • Partial inferior vena cava (IVC) snaring was implemented to manage the sudden increase in PAP.
  • IVC snaring reduced venous return, leading to decreased PAP.

Related Experiment Videos

  • This intervention improved cardiac chamber dimensions, systolic function, and diastolic filling patterns.

    • Implications:

    • Partial IVC snaring is a viable strategy for managing acute pulmonary artery hypertension during OP-CABG.
    • This technique can stabilize hemodynamically compromised patients.
    • Intraoperative echocardiography is essential for timely diagnosis and management.