PMID- 28660476
OWN - NLM
STAT- MEDLINE
DCOM- 20190116
LR  - 20190116
IS  - 1435-1544 (Electronic)
IS  - 0938-7412 (Linking)
VI  - 28
IP  - 3
DP  - 2017 Sep
TI  - A review of the atrial upper rate algorithms of St. Jude Medical (Abbott) cardiac 
      implantable electronic devices : Incidence of repetitive nonreentrant 
      ventriculoatrial synchrony (RNRVAS).
PG  - 320-327
LID - 10.1007/s00399-017-0517-z [doi]
AB  - This review focuses on the manifestations of the three triggered atrial upper 
      rate functions of St Jude Medical cardiac implantable electronic devices. The 
      occurrence of repetitive nonreentrant ventriculoatrial synchrony (RNRVAS) is also 
      evaluated as a basis for the development of automatic mode switching (AMS) and as 
      a trigger for atrial tachycardia/atrial fibrillation (AT/AF) event recordings. 
      RNRVAS is a common trigger for AMS because all the atrial events or intervals are 
      used to calculate the filtered atrial rate interval (FARI). Once AMS is 
      initiated, it will also effectively stop RNRVAS because entry into AMS also 
      shortens the postventricular atrial refractory period (PVARP). Recent design 
      developments to eliminate or minimize unusual upper rare responses include the 
      following: (1) P waves in the PVARP are no longer counted towards the FARI if 
      they are followed by an atrial paced event. (2) In new devices the AT/AF 
      detection algorithm substitutes the Moving Average Interval (a relatively complex 
      calculation) with the new FARI average. (3) Improved design of the 
      rate-responsive PVARP with a far more aggressive response than in the past 
      (enhanced atrial protection interval).
FAU - Barold, S S
AU  - Barold SS
AD  - Department of Medicine, University of Rochester School of Medicine and Dentistry, 
      Rochester, NY, USA. ssbarold@aol.com.
LA  - eng
PT  - Journal Article
PT  - Review
TT  - Review uber das Verhalten an der oberen Grenzfrequenz bei kardialen 
      implantierbaren elektronischen Devices der Firma St. Jude Medical (Abbott) : 
      Haufigkeit einer "repetitive nonreentrant ventriculoatrial synchrony" (RNRVAS).
PL  - Germany
TA  - Herzschrittmacherther Elektrophysiol
JT  - Herzschrittmachertherapie & Elektrophysiologie
JID - 9425873
SB  - IM
MH  - *Algorithms
MH  - Atrial Fibrillation/*physiopathology
MH  - Defibrillators, Implantable/*adverse effects
MH  - *Electrocardiography
MH  - Electrodes, Implanted/*adverse effects
MH  - Equipment Failure Analysis
MH  - Heart Rate/*physiology
MH  - Humans
MH  - Pacemaker, Artificial/*adverse effects
OTO - NOTNLM
OT  - Atrial fibrillation
OT  - Automatic mode switching
OT  - Cardiac pacemaker
OT  - Implantable cardioverter-defibrillator
OT  - Repetitive nonreentrant ventricular ventriculoatrial synchrony
EDAT- 2017/07/01 06:00
MHDA- 2019/01/17 06:00
CRDT- 2017/06/30 06:00
PHST- 2017/07/01 06:00 [pubmed]
PHST- 2019/01/17 06:00 [medline]
PHST- 2017/06/30 06:00 [entrez]
AID - 10.1007/s00399-017-0517-z [pii]
AID - 10.1007/s00399-017-0517-z [doi]
PST - ppublish
SO  - Herzschrittmacherther Elektrophysiol. 2017 Sep;28(3):320-327. doi: 
      10.1007/s00399-017-0517-z.