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Updated: May 19, 2026

A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation
Published on: February 28, 2012
Azygos vein lead implantation: a therapeutic option for elevated defibrillation threshold
Luiz Eduardo Montenegro Camanho1, Antonio Carlos Botelho da Silva, Marco Antonio Teixeira
1Hospital São José do Avaí Itaperuna, RJ. luizemc@cardiol.br
Abstract:
The evaluation of the defibrillation threshold (DFT) during the implantation of a cardioverter-defibrillator (ICD) is an important stage of the procedure, as a high DFT can be found in up to 16% of patients. We report a patient with idiopathic dilated cardiomyopathy (DCM) submitted to a biventricular ICD implantation. During the procedure, the patient showed a high DFT and showed to be resistant to usual therapeutic modalities. We opted for the azygos vein defibrillation lead implantation, with good resolution.
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