Table 3.
Hemodynamics of perfused hearts* at the end of the control period (before ischemia)
| |
n |
LVDP |
HR |
+dP/dt
max
|
-dP/dt
min
|
Coronary flow rate |
|
|---|---|---|---|---|---|---|---|
| (cm H 2 O) | (bpm) | (cm H 2 O/sec) | (cm H 2 O/sec) | (mL/min) | |||
| ENCF-1 |
Coarse |
5 |
115 ± 7 |
357 ± 41 |
4056 ± 1038 |
−3271 ± 448 |
2.2 ± 0.5 |
| Fine |
5 |
102 ± 21 |
285 ± 68 |
3551 ± 750 |
−2527 ± 758 |
2.1 ± 0.3 |
|
| Ultrafine |
5 |
105 ± 16 |
345 ± 50 |
2765 ± 321 |
−2720 ± 466 |
1.9 ± 0.4 |
|
| ENCF-4 |
Coarse |
4 |
107 ± 19 |
330 ± 34 |
3614 ± 572 |
−2720 ± 923 |
1.9 ± 0.2 |
| Fine |
4 |
100 ± 5 |
306 ± 18 |
3447 ± 1172 |
−2665 ± 189 |
2.1 ± 0.3 |
|
| Ultrafine |
4 |
106 ± 10 |
341 ± 39 |
3394 ± 481 |
−2750 ± 414 |
2.2 ± 0.2 |
|
| Saline | 4 | 120 ± 16 | 364 ± 47 | 4018 ± 1405 | −2998 ± 559 | 2.2 ± 0.3 | |
*Hearts were collected at 24 h post-exposure to ENCF-1 and ENCF-4 PM.
LVDP: left ventricular developed pressure, HR: heart rate, +dP/dtmax: maximum first derivative of change in left ventricular pressure/time, −dP/dtmin: minimum first derivative of change in left ventricular pressure/time.