[Pacemaker syndrome with AV-synchronized stimulation of the heart].
Characteristic signs of the pacemaker syndrome occurred in a 69-year-old woman with intermittent 3 degrees atrioventricular (AV) block after implantation of a dual-chamber AV-synchronized pacemaker. Cannon beats due to inappropriate atrial timing were the main haemodynamic finding. Their development and size depended on the programmed AV interval and AV-synchronized mode of stimulation. Very long AV intervals in the DDD mode at a heart rate of 100/min caused very unpleasant palpitations and pulsations in the upper thorax. The symptoms due to the cannon beats were avoided by changing to a short AV interval. The clinical and haemodynamic events were thus the consequence of preserved sinus node function with subsequent atrial triggering.
Stierle
U
U
Klinik für Kardiologie, Medizinische Universität Lübeck.
Potratz
J
J
Taubert
G
G
Mitusch
R
R
Sheikhzadeh
A
A
Diederich
K W
KW
D000368:Aged; D006328:Cardiac Catheterization; D004868:Equipment Failure; D005260:Female; D006327:Heart Block / Q000150:complications / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy*; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D010138:Pacemaker, Artificial; D011669:Pulmonary Wedge Pressure / Q000502:physiology; D013577:Syndrome
Schrittmachersyndrom bei AV-synchronisierter Stimulation des Herzens.