Case 1: A fifty-year-old male with a history of single-chamber (AAIR) pacemaker implantation for symptomatic sick sinus syndrome presented to the pacemaker clinic experiencing multiple episodes of dizziness. An electrocardiogram was taken(see the image). What is the most probable underlying diagnosis and probable aetiology??
Figure 1. 12-lead electrocardiogram of the index patient.
Answer will be posted on the last week of June
Case courtesy: Dr Sudipta Mondal, SCTIMST, Trivandrum
Pacemaker failure
Failure of pacing
Pacemaker failure
This ECG is showing intermittent spells of p pacing but without emerging
QRS – AV nodal blockade =the reason of syncope episodes even in the presence of AAIR pacing
This ECG is showing intermittent spells of atrial pacing but without corresponding emerging of QRS –AV node blockade.AAIR pacing is not suitable under such situation with SSS
Failure to pace and undersensing. Likely lead dislodgement