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. Author manuscript; available in PMC: 2016 Dec 1.
Published in final edited form as: J Thorac Cardiovasc Surg. 2015 Sep 5;150(6):1602–1608.e1. doi: 10.1016/j.jtcvs.2015.08.105

TABLE 2.

Chamber pressure, elastance, and compliance

Control Chronic Paced P Value
Left atrium
 min LAP   8.7 ± 3.0 10.8 ± 3.7 .113
 max LAP 15.0 ± 3.4 16.0 ± 5.8 .561
 mean LAP 11.2 ± 2.8 13.5 ± 12.4 .121
 ESPVR slope   1.7 ± 1   1.1 ± 0.5 .041
 dP/dT slope    19 ± 13   5.7 ± 7.3 .004
 EDPVR slope   1.6 ± 1.3   1.5 ± 0.9 .733
Left ventricle
 Min LVP      8 ± 3      8 ± 3 .725
 Max LVP    92 ± 18    88 ± 18 .644
 max LV dp/dt  969 ± 458  964 ±183 .994
 mean LVP    41 ± 7    31 ±9 .013
 ESPVR slope   1.9 ± 1.9   1.4 ± 1 .339
 EDPVR slope   1.9 ± 2   1.6 ± 1.5 .968
 mean AOP 61.3 ± 6.4 67.6 ± 12.4 .098

min LAP, Minimum left atrial pressure; max LAP, maximum left atrial pressure; mean LAP, mean left atrial pressure; ESPVR, end-systolic pressure-volume relations; EDPVR, end-diastolic pressure-volume relations; min LVP, minimum left ventricular pressure; max LVP, maximum left ventricular pressure; max LV dp/dt, maximum left ventricular dp/dt; mean LVP, mean left ventricular pressure; mean AOP, mean aortic pressure.