[Single-lead VDD pacing with sensing dipole in the coronary sinus: a case of implantation through persistent left superior vena cava].
We report the case of a VDD single-lead pacemaker implantation through a persistent left superior vena cava in a 48-year-old male patient with recurrent episodes of syncope due to paroxysmal atrioventricular block. VDD lead insertion through the anomalous venous structure led to positioning of the floating sensing dipole into the coronary sinus, in a very large and stable sensed atrial signal due to the close anatomic relationship between the coronary sinus and the left atrium. Shortness of the sensed atrioventricular interval allowed VDD stimulation to occur only in the case of paroxysmal atrioventricular block.
Divisione di Cardiologia, Ospedale di Borgomanero (NO).
M
M
Bielli
U
U
Parravicini
M
M
Zanetta
A
A
Mezzani
F
F
Zenone
N
N
Franchetti
T
T
Di Camillo
G
G
Iraghi
A
A
Perucca
D002304:Cardiac Pacing, Artificial; D002404:Catheterization; D006327:Heart Block / Q000628:therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014683:Vena Cava, Superior / Q000002:abnormalities