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Regionalization of tertiary care: impact of safe cardiovascular volumes in Iowa

J E Rohrer1, M S Vaughan, R P Wenzel

  • 1Graduate Program in Hospital and Health Administratin, University of Iowa, Iowa City, USA.

Health Services Management Research
|January 7, 1997
PubMed

Insights

Implementing safe volume thresholds for cardiovascular procedures in Iowa could significantly reduce the number of hospitals providing care, potentially improving patient outcomes. This analysis focused on coronary artery bypass graft surgery, vascular surgery, cardiac valve surgery, and cardiac catheterization.

Area of Science:

  • Health Services Research
  • Cardiovascular Surgery
  • Healthcare Policy

Background:

  • Patient outcomes in cardiovascular care correlate positively with hospital procedure volume.
  • Higher hospital volume is associated with improved quality and efficiency in specialized medical services.

Purpose of the Study:

  • To assess the impact of establishing safe volume thresholds on cardiovascular procedure providers in Iowa.
  • To determine the potential reduction in the number of hospitals performing specific cardiovascular procedures under various volume threshold scenarios.

Main Methods:

  • Analysis of four cardiovascular procedures: coronary artery bypass graft surgery, vascular surgery, cardiac valve surgery, and cardiac catheterization.
  • Examined data from Iowa hospitals in 1990, applying current and reduced per capita procedure rates.
  • Modeled the relationship between different volume thresholds and the number of hospitals meeting those thresholds.

Main Results:

  • Coronary artery bypass graft surgery providers could decrease from 12 to 2.
  • Vascular surgery providers could reduce from 33 to as few as 4.
  • Cardiac valve surgery providers might decrease from 10 to 1, and cardiac catheterization from 22 to 2.

Conclusions:

  • Establishing safe volume thresholds could lead to substantial consolidation of cardiovascular services in Iowa.
  • This consolidation may concentrate expertise, potentially enhancing the quality of cardiovascular care.
  • Policy implications suggest that volume-based criteria could reshape healthcare delivery for complex procedures.

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