Table 1.

Pros and Cons of Oscillometric Versus Auscultatory Ambulatory BP Devices

OscillometricAuscultative
Pros:
• Easier to use
• Fewer erroneous readings
Pros:
• Diastolic BP may be defined as 4th or 5th Korotkoff sound
• Systolic and diastolic pressures are measured in a similar fashion to resting, casual BP
Cons:
• Systolic and diastolic pressures are calculated, not measured
• Calculation formulas are proprietary
Cons:
• No normative data available
• More difficult to use
• Fewer machines to choose
• No consensus on lower age at which Korotkoff sounds are audible or accurate
  • BP indicates blood pressure.