Table 2.
Hemodynamic parameters in rats 18 weeks after sham surgery or myocardial infarction treated either with placebo, cariporide, ramipril or the combination of cariporide and ramipril
| Parameter | Sham operation (n=14) | Myocardial infarction | |||
|---|---|---|---|---|---|
| Placebo (n=11) | Cariporide (n=9) | Ramipril (n=9) | Carip/ram (n=11) | ||
| Heart rate (bpm) | 366±8 | 355±5 | 377±12 | 344±7 | 374±13 |
| LVSP (mmHg) | 156±5 | 113±8* | 143±7† | 123±9* | 140±4† |
| LVEDP (mmHg) | 5±1 | 18±2* | 12±2† | 9±1†q | 11±1† |
| LVESV (μl) | 154±16 | 308±10* | 226±19† | 200±24† | 213±16† |
| MAP (mmHg) | 140±8 | 103±9* | 126±7† | 106±9* | 121±6† |
| dp/dtmax (mmHg s−1) | 8618±435 | 5185±363* | 8077±525†§ | 6332±527† | 7395±446† |
| EF (%) | 56±2 | 28±3* | 41±3† | 46±4† | 40±2† |
| SW (mmHg μl−1) | 18,156±1099 | 6925±1033* | 15,231±1565† | 14,028±1864† | 12,577±1070† |
| Ees (mmHg μl−1) | 0.64±0.05 | 0.35±0.06* | 0.40±0.06§ | 0.30±0.05 | 0.47±0.08†§ |
| dp/dtmin (mmHg s−1) | −7686±263 | −4199±357* | −4734±398 | −5030±195† | −4745±331 |
| EDPVR (mmHg μl−1) | 0.0144±0.004 | 0.042±0.001* | 0.026±0.014*† | 0.0098±0.004†‡ | 0.012±0.003†‡ |
Hemodynamic parameter in sham-operated rats (sham) and rats with congestive heart failure 18 weeks after myocardial infarction: effects of placebo, NHE-1 inhibition (cariporide), ACE inhibition (ramipril), or combined NHE-1 and ACE inhibition (Carip/ram). LVESP=left ventricular systolic pressure; LVEDP=LV end-diastolic pressure; LVESV=LV end-systolic volume; MAP=mean arterial pressure; EF=ejection fraction; dp/dtmax=maximal rate of pressure development; dp/dtmin; maximal rate of decay of pressure; SW=stroke work; Ees=end-systolic pressure volume relationship; EDPVR=end-diastolic pressure volume relationship. Values are mean±s.e.m. *P<0.05 vs sham, †P<0.05 vs placebo, §P<0.05 vs ramipril, ‡P<0.05 vs cariporide.