Comparison of right ventricular outflow tract and apical lead permanent pacing on cardiac output.
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.
Giudici
M C
MC
Division of Cardiology, Genesis Regional Heart Center, Davenport, Iowa 52803, USA.
Thornburg
G A
GA
Buck
D L
DL
Coyne
E P
EP
Walton
M C
MC
Paul
D L
DL
Sutton
J
J
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001783:Blood Flow Velocity; D001794:Blood Pressure; D002302:Cardiac Output / Q000502:physiology*; D002303:Cardiac Output, Low / Q000503:physiopathology / Q000628:therapy; D002304:Cardiac Pacing, Artificial / Q000379:methods*; D017115:Catheter Ablation; D015150:Echocardiography, Doppler; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000503:physiopathology / Q000601:surgery / Q000628:therapy; D006346:Heart Septum / Q000000981:diagnostic imaging / Q000502:physiology; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial; D011664:Pulmonary Valve / Q000000981:diagnostic imaging / Q000502:physiology; D012804:Sick Sinus Syndrome / Q000503:physiopathology / Q000628:therapy