CarboMedics Aortic Valve Selection Calculator

This calculator allows you to make a quick determination of the optimal CarboMedics aortic valve for your patient using the concept of Effective Orifice Area Index (EOAI). EOAI enables the surgeon to avoid patient/prosthesis mismatch by maintaining a minimum ratio of the valve's effective orifice area (EOA) in cm2 to the patient's Body Surface Area (BSA) in m2. As a result of the work of Pibarot¹ BSAI of 0.85 or greater is generally considered optimal. BSAI is defined as:

BSAI = EOA/BSA

The process works like this:

• You insert the sex, weight, and height of your patient.
• The calculator determines the body surface area (BSA) of your patient.
• Using the BSA of your patient, a program then scans the Effective Orifice Areas (EOA) of CarboMedics aortic valves to determine which valve or valves provide your patient with a Body Surface Area Index (BSAI) of 0.85 or greater.
• A box appears with valve sizes and types.

Remember, the Top Hat valve allows you to upsize by as much as two sizes. So, don't be surprised to see a size 23 Top Hat recommended for a 19mm annulus.

Sex:	male female
Weight:	lbs kg
Height:	inches cm meters
Body Surface Area =	m2
Lean Body Weight =	kg = lbs
Ideal Body Weight =	kg = lbs
Body Mass Index =	kg/m2 =

 
Lean Body Weight (men) = (1.10 x Weight(kg)) - 128 ( Weight²/(100 x Height(m))²)
Lean Body Weight (women) = (1.07 x Weight(kg)) - 148 ( Weight²/(100 x Height(m))²)

Ideal Body Weight (men) = 50 + 2.3 ( Height(in) - 60 )
Ideal Body Weight (women) = 45.5 + 2.3 ( Height(in) - 60 )

Body Mass Index = Weight(kg) / Height(m)²
Body Surface Area = 0.20247 x Height(m)^0.725 x Weight(kg)^0.425