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. 1990 Dec;13(12 Pt 2):1906-9.
doi: 10.1111/j.1540-8159.1990.tb06914.x.

A new single lead VDD pacing system

G F Percoco  1 , L Ansani, D Barbieri, G Guardigli, T Toselli, R Audoglio, G E Antonioli
Affiliations

A new single lead VDD pacing system

G F Percoco et al. Pacing Clin Electrophysiol. 1990 Dec.

Abstract

In 24 patients with advanced heart block and normal sinus node function, a new single lead VDD pacing system was implanted. At implantation, the endoatrial, bipolar electrogram was recorded in all patients. The lead position was checked by means of chest X-ray. At discharge and after 1, 3, and 6 months, testing for myopotential inhibition, telemetric evaluation of the endoatrial potential, and Holter recordings were made. After discharge, 18 patients performed two cardiopulmonary exercise tests at two different rate-matched AV intervals. All investigations showed good AV synchrony and a lack of interferences by myopotentials. The maximum rate-matched AV interval provided a significantly improved exercise capacity, which was more evident in patients with signs of myocardial failure.

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