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. Author manuscript; available in PMC: 2013 Oct 30.
Published in final edited form as: J Am Coll Cardiol. 2012 Oct 3;60(18):1764–1775. doi: 10.1016/j.jacc.2012.07.052

Table III.

Summary of Speed Optimization Ramp Tests (n=28 Tests)

Parameter Set Clinical Speed Pre- Ramp Test New Speed Post-Ramp Test
Average Set Speed (rpm) 8,850±431 rpm 8,850±470 rpm
Delta Change in Speed Pre- to Post-Test N/A Absolute Speed Change: 424±211 rpm
Speed Change in 17/28 Tests (61%)
Increased Speed: 8 Tests
 Mean Increase Speed Change: 450±177 rpm
Decreased Speed: 9 Tests
 Mean Decrease Speed Change: -400±245
No Speed Change: 11 Tests
LVEDD, Mean 5.7±1.2 cm 5.7±1.2 cm
Blood Pressure (MAP), Mean 85.3±9.7 mmHg 86.1±11.3 mmHg
Frequency of Aortic Valve Opening Closed: 13
Open Intermittently: 3
Open Every Beat: 6
Excluded for AV Repair/Closure at HMII Implant: 6		 Closed: 9
Open Intermittently: 10
Open Every Beat: 3
Excluded for AV Repair/Closure at HMII Implant: 6