# Behavior of the OptiVol2 fluid index and intrathoracic impedance on remote monitoring As a detector of subclinical device infection early after implantation

## TL;DR

The study shows that a fluid index and impedance monitoring can detect early signs of device infection before symptoms appear.

## Contribution

The study introduces the use of sustained OVFI2 increases as an early indicator of subclinical device infection.

## Key findings

- A sustained rise in OptiVol2 fluid index early after implantation indicates peri-device fluid retention.
- Remote monitoring of intrathoracic impedance can detect subclinical infection before clinical signs emerge.

## Abstract

We report the behavior of OptiVol2 fluid index (OVFI2) and intrathoracic impedance on remote monitoring before the appearance of signs of infection. A sustained rise in OVFI2 early after implantation reflects peri‐device fluid retention.