Abnormalities of the Ventilatory Equivalent for Carbon Dioxide in Patients with Chronic Heart Failure

<table>Kaplan-Meier survival curve showing peak VO<sub>2</sub>-data dichotomised by optimal cut-points (&lt;20 mL·kg<sup>−1</sup>·min<sup>−1</sup><svg height="11.125" id="M63" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 58.224998 11.125" width="58.224998" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,5.725,10.862)"><use xlink:href="#x1D45B"></use></g><g transform="matrix(.017,-0,0,-.017,18.967,10.862)"><use xlink:href="#x3D"></use></g><g transform="matrix(.017,-0,0,-.017,33.671,10.862)"><use xlink:href="#x31"></use></g><g transform="matrix(.017,-0,0,-.017,41.83,10.862)"><use xlink:href="#x38"></use></g><g transform="matrix(.017,-0,0,-.017,49.99,10.862)"><use xlink:href="#x34"></use></g>
</svg> patients, event free survival 60%; ≥ 20 mL·kg<sup>−1</sup>·min<sup>−1</sup><svg height="11.175" id="M64" style="vertical-align:-0.20474pt" version="1.1" viewbox="0 0 58.224998 11.175" width="58.224998" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,5.725,10.862)"><use xlink:href="#x1D45B"></use></g><g transform="matrix(.017,-0,0,-.017,18.967,10.862)"><use xlink:href="#x3D"></use></g><g transform="matrix(.017,-0,0,-.017,33.671,10.862)"><use xlink:href="#x32"></use></g><g transform="matrix(.017,-0,0,-.017,41.83,10.862)"><path d="M285 378v-2q65 -13 102 -54.5t37 -97.5q0 -57 -30.5 -104.5t-74 -75t-85.5 -42t-72 -14.5q-31 0 -59.5 11t-40.5 23q-19 18 -16 36q1 16 23 33q13 10 24 0q58 -51 124 -51q55 0 88 40t33 112q0 64 -39 96.5t-88 32.5q-29 0 -64 -11l-6 29q77 25 118 57.5t41 84.5
q0 45 -26.5 69.5t-68.5 24.5q-67 0 -120 -79l-20 20l43 63q51 56 127 56h1q66 0 107 -37t41 -95q0 -42 -31 -71q-22 -23 -68 -54z" id="x33"></path></g><g transform="matrix(.017,-0,0,-.017,49.99,10.862)"><path d="M244 635q90 0 143 -72t53 -177q0 -133 -65 -229.5t-171 -139.5q-79 -32 -140 -32l-5 30q109 18 185 91t101 186l-68 -36q-29 -16 -60 -16q-79 0 -129 51.5t-50 130.5q0 80 57 146.5t149 66.5zM228 602q-52 0 -78 -45.5t-26 -98.5q0 -69 36.5 -115.5t97.5 -46.5
q53 0 90 28q4 31 4 66q0 51 -9.5 95.5t-39 80.5t-75.5 36z" id="x39"></path></g>
</svg> patients, event free survival 82%).</table>

Pulmonary Medicine

fig6

Figure 6

Figure 6: Abnormalities of the Ventilatory Equivalent for Carbon Dioxide in Patients with Chronic Heart Failure 