Table 1 Mean variables of left ventricular (LV) mechanics.

From: Left ventricular mechanoenergetics in excised, cross-circulated rat hearts under hypo-, normo-, and hyperthermic conditions

 

32 °C (n = 10)

37 °C (n = 13)

42 °C (n = 10)

A (mmHg)

221.7 ± 25.3

212.7 ± 30.9

191.6 ± 52.3

B (ml−1)

13.3 ± 7.00

10.3 ± 2.90

8.3 ± 3.8*

V0 (ml g−1)

0.090 ± 0.012

0.096 ± 0.016

0.091 ± 0.013

mLVV (ml g−1)

0.167 ± 0.027

0.174 ± 0.029

0.177 ± 0.031

ESPmLVV (mmHg)

134.6 ± 17.0†

103.4 ± 10.7

76.0 ± 11.5*,†

PVAmLVV (mmHg ml−1 beat−1 g−1)

6.93 ± 1.46†

5.59 ± 1.46

4.11 ± 1.13*,†

  1. All values are means ± SD. *p < 0.05 vs 32 °C, †p < 0.05 vs 37 °C. A and B, parameters of best-fit end systolic pressure (ESP)-volume relation (ESPVR) obtained by the equation: A{1 − exp[−B(V − V0)]}. V0, volume intercept of ESPVR. mLVV, left ventricular volume at midrange. ESPmLVV, ESP at mLVV. PVAmLVV, pressure-volume area at mLVV.
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