Table 1.
The input variables used to model the various pathophysiological processes with the LPM
| Inputs | ||||||
|---|---|---|---|---|---|---|
| Pathological Process | LVEmax | R | C | Volume | T | |
| mmhg/ml | mmhg.s/min | ml/mmhg | (ml) | (s) | ||
| Normal | 2.5 | 0.094 | 1.7 | 5700 | 1 | |
| Hypertension | Stage 1 | 2.5 | 1.194 | 1.26 | 5700 | 1 |
| Stage 2 | 2.7 | 1.374 | 1.16 | 5700 | 1 | |
| Accelerated | 2.7 | 1.614 | 1.16 | 5700 | 1 | |
| Heart Failure | Mild | 2 | 1.094 | 1.7 | 5700 | 1 |
| Moderate | 1.4 | 1.094 | 1.65 | 5700 | 0.857 | |
| Severe | 0.8 | 1.194 | 1.55 | 5700 | 0.75 | |
| Haemorrhage | Stage I | 2.8 | 0.994 | 1.7 | 5200 | 0.6 |
| Stage II | 3.2 | 1.034 | 1.7 | 4500 | 0.5 | |
| Stage III | 3 | 1.034 | 1.7 | 3700 | 0.429 | |
| Stage IV | 3 | 1.018 | 1.7 | 2850 | 0.375 | |
C Total arterial compliance, LVEmax Maximal left ventricular elastance, R systemic vascular resistance, T duration of each heartbeat (i.e. 60/heart rate), Volume circulating blood volume