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Case Reports
. 2020 Sep-Oct:62:26-29.
doi: 10.1016/j.jelectrocard.2020.06.016. Epub 2020 Jun 11.

Manifest preexcitation with a prolonged PR interval: What is the mechanism?

Pepa Sánchez Borque  1 , José Manuel Rubio Campal  2 , Ángel Miracle Blanco  2 , Loreto Bravo Calero  2
Affiliations
Case Reports

Manifest preexcitation with a prolonged PR interval: What is the mechanism?

Pepa Sánchez Borque et al. J Electrocardiol. 2020 Sep-Oct.

Abstract

A 44-year-old woman with a past history of surgical ablation of an accessory pathway presented to our facility with episodes of palpitations and dizziness. An ECG showed sinus rhythm with a prolonged PR interval and a preexcited QRS complex. An EP study revealed AV conduction through a postero-septal accessory pathway and a prolonged PR interval due to severe intra-atrial conduction delay.

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