FTE Analysis in Perfusion: Are You Staffed for Your Case Volume or Your Vendor's Revenue?

The staffing model for a cardiovascular perfusion program is one of the most significant cost drivers in the service line — and one of the least frequently re-evaluated. Most programs set their staffing levels when the service is first established or when a new vendor contract is signed, then allow those levels to persist for years regardless of how case volume or case mix has changed.

How Misalignment Happens

When a hospital engages an outside perfusion management company, staffing levels are typically proposed by the vendor during contract negotiation. The vendor has two competing incentives: staffing high enough to ensure clinical coverage (protecting against liability and service failures) and staffing at levels that maximize billable hours. In our experience, the latter tends to dominate when there is no independent analysis to anchor the conversation.

For in-house programs, misalignment often develops differently: staffing was set at a time of higher volume, volume has since declined, but staffing has not been adjusted because there is no formal process for doing so. Nobody wants to reduce clinical headcount, so the conversation never happens until a budget crisis forces it.

What a Proper FTE Analysis Examines

• Total annual case volume by procedure type — on-pump cardiac, off-pump, valve, TAVR support, ECMO, autotransfusion
• Average case duration by procedure type, including turnover and setup time
• Call coverage requirements given your specific surgical schedule and emergency response obligations
• Certification and credential requirements that affect how staff can be flexed across procedure types
• Benchmark FTE-per-case ratios from comparable programs nationally

The output of this analysis is a staffing model that is grounded in what your program actually does, not what a vendor proposed or what was relevant five years ago.

What We Typically Find

In the programs we have analyzed, overstaffing relative to actual case volume is far more common than understaffing. The most frequent findings include: on-call staffing structures that are more generous than peer institutions relative to case volume; FTE counts that reflect historical peak volumes that the program has not seen in two or more years; and staffing models that do not distinguish between procedure types with substantially different complexity and time requirements.

The typical gap we identify — between current staffing cost and what a volume-calibrated model would require — ranges from 10 to 20 percent of total perfusion labor expense. For a program spending $1.2M annually on perfusion staffing, that represents $120,000 to $240,000 in annual variance.

Implementation Considerations

Staffing adjustments require care. Certified Clinical Perfusionists are a specialized workforce, and the goal of a FTE analysis is not to reduce headcount arbitrarily but to align staffing with volume in a way that maintains clinical safety, supports reasonable work conditions, and meets regulatory and accreditation requirements. The analysis should be the beginning of a conversation, not the end of one — and it should always be conducted in partnership with the clinical team, not imposed on it.