Table 1.
Baseline Characteristics of All Animals
| Variables | S (n=6) | C (n=6) | P (n=6) | M (n=6) | P&M (n=6) |
|---|---|---|---|---|---|
| Body weights, g | 480±12 | 486±29 | 482±19 | 478±11 | 479±20 |
| Surgery time, min | 28±5 | 28±3 | 26±4 | 29±6 | 24±3 |
| Heart rate, bpm | 359±29 | 355±17 | 344±29 | 363±20 | 359±29 |
| MAP, mm Hg | 137±6 | 137±5 | 140±11 | 144±2 | 141±13 |
| Temperature, °C | 36.7±0.1 | 36.6±0.1 | 36.7±0.1 | 36.8±0.3 | 36.6±0.1 |
| PC depth, mm | … | 12±1 | 13±1 | 12±1 | 12±1 |
| No. of shocks | … | 1.5±0.5 | 2.2±0.8 | 1.3±1.0 | 1.7±0.8 |
| PC3 CPP, mm Hg | … | 27.83±2.31 | 27.83±2.71 | 27.33±2.33 | 26.46±2.43 |
| PC5 CPP, mm Hg | … | 27.00±1.67 | 27.17±1.83 | 26.50±2.07 | 27.17±0.98 |
| PC7 CPP, mm Hg | … | 26.83±1.72 | 26.33±2.07 | 27.33±2.42 | 25.83±1.47 |
| ETCO2, mm Hg | |||||
| Baseline | 37.7±5.8 | 39.3±7.1 | 41.2±4.3 | 40.2±5.0 | 41.4±6.1 |
| PC3 | … | 17.33±1.75 | 17.50±2.66 | 18.17±1.72 | 17.50±2.66 |
| PC5 | … | 18.00±1.79 | 17.67±1.97 | 18.33±1.63 | 18.50±1.87 |
| PC7 | … | 18.50±2.42 | 17.33±1.75 | 18.83±1.94 | 18.00±1.41 |
Data are presented as means±SD. All variables 1‐way ANOVA, P>0.05. C indicates cardiac arrest control group; CPP, coronary perfusion pressure; ETCO2, end‐tidal CO2; M, MCC950 group; MAP, mean artery pressure; P&M, polyethylene glycol‐20k ‒MCC950 group; P, polyethylene glycol‐20k group; PC, precordial compression; PCn, n minute after PC; and S, sham control group without cardiac arrest.