Second-degree interatrial block in hemodialysis patients.

Andres Enriquez,Adrian Baranchuk,Anna D’Amato,Antoni Bayes De Luna,Marco Marano

doi:10.1155/2015/468493

Andres Enriquez, Adrian Baranchuk + Show 3 more

Open Access

https://doi.org/10.1155/2015/468493

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Abstract

Interatrial conduction delays manifest as a prolonged P-wave duration on surface ECG and the term interatrial block (IAB) has been coined. They are usually fixed, but cases of intermittent IAB have been described, suggesting functional conduction block at the Bachmann bundle region. We report 2 cases of patients on chronic hemodialysis therapy presenting with intermittent IAB.

Highlights

Interatrial block (IAB), defined as a conduction delay between the right and left atrium, is manifested on the electrocardiogram (ECG) as a prolonged P-wave duration and can be classified as partial (P-wave ≥ 120 ms) or advanced (P-wave ≥ 120 with biphasic [±] morphology in the inferior leads) [1]
We report 2 cases of patients on chronic hemodialysis therapy presenting with second-degree IAB
First case is an 81-year-old female with end-stage renal disease of unknown etiology who presented to her hemodialysis session complaining of weakness and nausea

Summary

Introduction

Interatrial block (IAB), defined as a conduction delay between the right and left atrium, is manifested on the electrocardiogram (ECG) as a prolonged P-wave duration and can be classified as partial (P-wave ≥ 120 ms) or advanced (P-wave ≥ 120 with biphasic [±] morphology in the inferior leads) [1]. IAB may be intermittent [2] and the term “second-degree IAB” has been proposed [1]. We report 2 cases of patients on chronic hemodialysis therapy presenting with second-degree IAB

Patient 1

Patient 2