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Cost-effectiveness of impedance cardiography testing in uncontrolled hypertension

Carlos M Ferrario1, Ronald D Smith,

  • 1Hypertension and Vascular Disease Center, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA. cferrari@wfubmc.edu

The American Heart Hospital Journal
|November 7, 2006
PubMed

Insights

Impedance cardiography (ICG) testing is a cost-effective method for managing uncontrolled hypertension. This noninvasive approach offers significant short- and long-term benefits in reducing blood pressure and improving patient outcomes.

Area of Science:

  • Cardiovascular Medicine
  • Health Economics

Background:

  • Uncontrolled hypertension poses significant health risks and economic burdens.
  • Noninvasive hemodynamic monitoring strategies are being explored to optimize blood pressure management.

Purpose of the Study:

  • To evaluate the short- and long-term cost-effectiveness of impedance cardiography (ICG) testing compared to standard care in patients with uncontrolled hypertension.
  • To analyze data from the Consideration of Noninvasive Hemodynamic Monitoring to Target Reduction of Blood Pressure Levels (CONTROL) trial.

Main Methods:

  • Short-term cost-effectiveness was assessed by the incremental cost per incremental mm Hg reduction in systolic and diastolic blood pressure.
  • Long-term cost-effectiveness was evaluated using the incremental cost per quality-adjusted life-year (QALY) gained over a 10-year period.
  • Comparison was made between ICG care and standard care groups.

Main Results:

  • ICG care demonstrated superior short-term cost-effectiveness: $20/mm Hg for systolic BP (vs. $36 for standard care) and $23/mm Hg for diastolic BP (vs. $79 for standard care).
  • Long-term analysis showed ICG resulted in $476 cost savings per patient and 0.109 QALYs gained.
  • The incremental cost per QALY gained with ICG was -$4,371, with sensitivity analysis ranging from -$8,764 to $13,163.

Conclusions:

  • Impedance cardiography testing is a cost-effective strategy for managing uncontrolled hypertension.
  • ICG offers both immediate blood pressure reduction benefits and long-term improvements in patient quality of life and healthcare economics.
  • The findings support the integration of ICG into clinical practice for hypertensive patients.

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