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An unexpected finding in a patient with a DDDR pacemaker.

Bohm A, Kiss RG, Duray GZ - Neth Heart J (2014)

View Article: PubMed Central - PubMed

Affiliation: Department of Cardiology, Military Hospital, Róbert K körút 44, Budapest, 1134, Hungary, abohm@freemail.hu.

No MeSH data available.


Ventricular sensing failure, when the QRS is narrow
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Fig1: Ventricular sensing failure, when the QRS is narrow

Mentions: A 77-year-old female patient with sinus bradycardia and left bundle branch block was implanted with a DDD Biotronik Kairos DR pacemaker in 1999, then a replacement for depleted battery was performed in 2007 (Biotronik Axios DR). During our regularly scheduled follow-ups, we found the atrial and ventricular sensing/pacing function to be satisfactory: P: 3.6 mV, R: 9.9 mV, atrial threshold: 0.7 V/0.4 ms, ventricular threshold: 0.5 V/0.4 ms. Parameters were set as follows: basic rate: 60 bpm, hysteresis: −10 bpm, dynamic AV delay: 225 ms, sense compensation: −45 ms, atrial sensitivity: 1 mV, and ventricular sensitivity: 5 mV. During the latest follow-up (14 years after the first implantation), the following recording was made (Fig. 1). What would be your interpretation of this recording?Fig. 1


An unexpected finding in a patient with a DDDR pacemaker.

Bohm A, Kiss RG, Duray GZ - Neth Heart J (2014)

Ventricular sensing failure, when the QRS is narrow
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4016337&req=5

Fig1: Ventricular sensing failure, when the QRS is narrow
Mentions: A 77-year-old female patient with sinus bradycardia and left bundle branch block was implanted with a DDD Biotronik Kairos DR pacemaker in 1999, then a replacement for depleted battery was performed in 2007 (Biotronik Axios DR). During our regularly scheduled follow-ups, we found the atrial and ventricular sensing/pacing function to be satisfactory: P: 3.6 mV, R: 9.9 mV, atrial threshold: 0.7 V/0.4 ms, ventricular threshold: 0.5 V/0.4 ms. Parameters were set as follows: basic rate: 60 bpm, hysteresis: −10 bpm, dynamic AV delay: 225 ms, sense compensation: −45 ms, atrial sensitivity: 1 mV, and ventricular sensitivity: 5 mV. During the latest follow-up (14 years after the first implantation), the following recording was made (Fig. 1). What would be your interpretation of this recording?Fig. 1

View Article: PubMed Central - PubMed

Affiliation: Department of Cardiology, Military Hospital, Róbert K körút 44, Budapest, 1134, Hungary, abohm@freemail.hu.

No MeSH data available.