Abstract:
:Disabling presyncopal attacks were provoked in a patient with a sinus nodal disorder and cardiac pacemaker by treatment with antianginal vasodilators. At cardiac catheterization a severe fall in aortic pressure was documented during ventricular pacing, when desynchronized atrial contractions coincided with ventricular systoles. After withdrawal of the medication, no obvious changes in arterial pressure were associated with ventricular pacing, and the patient became free of dizziness. Vasodilating drugs may provoke episodic hypotension with characteristic features of the pacemaker syndrome.
journal_name
Chestjournal_title
Chestauthors
Toivonen LK,Pohjola-Sintonen Sdoi
10.1378/chest.91.6.919subject
Has Abstractpub_date
1987-06-01 00:00:00pages
919-20issue
6eissn
0012-3692issn
1931-3543pii
S0012-3692(15)43180-0journal_volume
91pub_type
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