Rate Control in Atrial Fibrillation by Cooling: Effect of Temperature on Dromotropy in Perfused Rabbit Hearts

<table>Average ventricular heart rate during atrial fibrillation (high-frequency atrial stimulation). A gradual cardiac hypothermia causes a gradual negative dromotropic effect. <svg height="11.25" id="M4" style="vertical-align:-0.30096pt" version="1.1" viewbox="0 0 48.337502 11.25" width="48.337502" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,11.25)">
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<text transform="matrix(1,0,0,-1,-71.95,63.35)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑃</tspan>
<tspan style="font-size: 12.50px; " x="10.890113" y="0">&lt;</tspan>
<tspan style="font-size: 12.50px; " x="22.930502" y="0">.</tspan>
<tspan style="font-size: 12.50px; " x="26.056252" y="0">0</tspan>
<tspan style="font-size: 12.50px; " x="32.307751" y="0">5</tspan>
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</svg> for any temperature level. bpm: beats per minute.</table>

Cardiology Research and Practice

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Figure 3

Figure 3: Rate Control in Atrial Fibrillation by Cooling: Effect of Temperature on Dromotropy in Perfused Rabbit Hearts 