Abstract
Cardiac output was measured in 89 patients using transthoracic continuous-wave echo Doppler comparing right ventricular outflow tract pacing with the right ventricular apex at the time of permanent pacemaker implantation. Overall, cardiac output improved 18.8% (p <0.0001) and cardiac index 21.0% (p <0.0001) with outflow tract placement; patients with a lower baseline cardiac index had a greater percent improvement with outflow tract placement.
MeSH terms
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Adult
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Aged
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Aged, 80 and over
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Blood Flow Velocity
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Blood Pressure
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Cardiac Output / physiology*
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Cardiac Output, Low / physiopathology
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Cardiac Output, Low / therapy
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Cardiac Pacing, Artificial / methods*
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Catheter Ablation
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Echocardiography, Doppler
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Electrocardiography
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Female
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Heart Block / physiopathology
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Heart Block / surgery
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Heart Block / therapy
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Heart Septum* / diagnostic imaging
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Heart Septum* / physiology
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Heart Ventricles / diagnostic imaging
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Humans
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Male
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Middle Aged
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Pacemaker, Artificial*
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Pulmonary Valve* / diagnostic imaging
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Pulmonary Valve* / physiology
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Sick Sinus Syndrome / physiopathology
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Sick Sinus Syndrome / therapy