Abstract:
:This study was undertaken to assess ventricular volumes and function by radionuclide angiography during asynchronous ventricular pacing in a group of 22 patients who needed an artificial pacemaker. 14 had ischaemic heart disease and 8 had primary disturbances of conduction of the impulse-forming system. The transition from sinus to a paced rhythm or increasing the pacing rate had little effect on patients with primary conduction disturbances. In contrast, in patients with ischaemic heart disease, the transition to a paced rhythm decreased significantly left ventricular end-diastolic (15.3 +/- 4.7%) and stroke (26.3 +/- 4%) volumes, ejection fraction (9.0 +/- 4.4%), and cardiac output (21.0 +/- 3.9%). Pacing at a progressively increasing heart rate showed that each patient had an optimal rate of pacing.
journal_name
Cardiologyjournal_title
Cardiologyauthors
Weiss AT,Gotsman MS,Lewis BS,Rein AJ,Atlan Hdoi
10.1159/000173685subject
Has Abstractpub_date
1984-01-01 00:00:00pages
315-22issue
6eissn
0008-6312issn
1421-9751journal_volume
71pub_type
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