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Cost Benefits

Cerebral Oximetry - it pays to monitor.

Despite improvement in survival rates, complications in cardiovascular surgery remain common1-2. For example studies show that:
  • Neuro impairment3 is at 6.1%
  • Post-op delirium4 is between 10-60% depending on patient age and type of surgery
  • Major organ morbidity or mortality5 (MOMM) is at 13.4%
  • Cognitive decline2 is at 24-53%
  • Prolonged ventilation5 is at 6%

For hospitals, cardiovascular surgery complications such as these translate into higher operating costs, decreased patient satisfaction and potential liability. The following chart shows the healthcare cost of patients with and without complications or morbidities, their mean cost and the range of costs for care. And this published report is old, meaning the costs are even more weighty today.

The Cost of Complications

graph
Clearly, patients with complications cost healthcare institutions thousands of dollars more than patients without said complications. Using the clinically-proven INVOS® System for cerebral oximetry in cardiac surgery helps ensure adequate cerebral oxygen levels to help prevent or lessen some complications in the OR, thus improving outcomes and decreasing healthcare costs.

INVOS® System Cost Analysis

To put the potential cost savings of INVOS® System usage in perspective, one of the top six global accounting firms, Grant Thornton LLP, conducted a cost analysis of a peer-review paper featuring the INVOS® System.7 This prospective, randomized study of 200 coronary artery bypass patients showed that patients managed via the INVOS® System experienced decreased major organ morbidity or mortality, fewer severe oxygen desaturations, and shorter hospital stays.7
Following is a chart based on this cost analysis which illustrates the average estimated cost savings in stroke, prolonged ventilation, hospital length of stay and ICU days when INVOS® System monitoring is used as a standard of care in cardiovascular surgery.

Total Potential Savings8

(Based on "mean" patient)
This study estimated a per-patient savings of $3,704 which, at an annual cardiac surgery volume of 350 patients, would result in a savings of $1.3 million. Even just applying the estimated $2,774 per patient ICU cost savings would be an annual savings of $970,000.

Footnotes:
1. Bucerius J, et al, J Thorac Cardiovasc Surg 2004;127:57-64.
2. Newman MF, et al, NEJM 2001;344:395-402.
3. Roach GW, et al, NEJM 1996;335:1857-63.
4. Post-Op Delirium
  • 50% -- Rudolph JL, et al, J AM Geriatr Soc 2006, June;54(6):937-41.
  • 33.6% -- Santos FS, et al, Int Pschogeriatr. 2004 Jun:16(2):175-93.
  • 32.4% -- Rolfson DB, et al, Int Psychogeriatr. 1999 Dec;11(4):431-8.
  • 23% -- Eriksson M, et al, Scand Cardiovasc J. 2002 Sug;36(4):250-5.
  • 8.4% overall prevalence after cardiac surgery (Bucerius J, et al, J Thorac. Cardiovasc Surg 2004;127:57-64.)
    • 11.9% for CABG with cardiopulmonary bypass
    • 16.4% for Valve with cardiopulmonary bypass
    • 5.1% for CABG without cardiopulmonary bypass (beating heart technique)
5. Shroyer AL, et al, Ann Thorac Surg. 2003;Jun:75(6):1856-64.
6. "Operative Outcome and Hospital Cost", Ferraris, Ferraris & Singh, The Journal of Thoracic
and Cardiovascular Surgery, 1998; 115: 593-603.
7. Murkin et al, Anesth Analg 2007 Jan:104(1):51-58.
8. Default values and performance improvement metrics derived from a financial analysis of
"Monitoring Brain Oxygen Saturation During Coronary Bypass Surgery: A Randomized,
Prospective Study," John M. Murkin, MD, FRCP, et al. Anesth Analg 2007;104:51-8.