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Autologs

URGENT PRODUCT UPDATE

Medtronic has stopped the distribution and sale of the HVAD™ System as of June 3, 2021, and has notified physicians to cease new implants of the Medtronic HVAD™ system and transition to an alternative commercial LVAD for all future implants. Prophylactic explant of the HVAD™ system is not recommended at this time.

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How Logfiles Are Created

HVAD Waveforms

The HVAD waveform is a visualization of blood flow through the HVAD, which is generated by three factors:

  1. Pressure at the inflow of the pump
  2. Pressure at the outflow of the pump
  3. Set speed
Example of HVAD waveform report showing patient blood flow through the VAD

Controller Logfiles

Every 15 minutes, the controller records the flow from the waveform and the pump's speed and power into its logfiles. It also records all medium and high-priority alarms at the time they occur. The controller can store up to 30 days of pump parameter data before overwriting the data in a first in/first out fashion.

Logfile recording data taken every 15 minutes shown in red lines and blood flow through the HVAD pump shown with purple lines

Autologs

When sent to the Autologs service, the data contained in the logfiles is charted and organized to simplify pump performance interpretation. The data shown in the reports is summarized to help the user identify major and long-term trends.

HVAD Autologs report showing a patient's blood flow through HVAD pump over time shown in green lines

User Resources

Download the latest resources to learn more about HVAD system Autologs.

pdf HVAD™ system Reference guide for clinicians (.pdf)

This reference guide is designed to provide clinicians with an overview of the Medtronic HVAD system, including waveforms and logfiles.

1.3MB

pdf Autologs reference card (.pdf)

The Autologs reference card provides the recommended power limits by rotational speed chart and instructions on how to upload logfiles.

109KB

Instructions For Use

A digital copy of the instructions for use can be found on Medtronic Manuals

Medtronic manuals

Product Performance and Advisories

Find digital copies of product advisories listed under other cardiovascular portfolio products

Product advisories

HVAD Patient Resources

Send your HVAD patients to the HVAD Learning Center for helpful tools and resources

Learning center

Newsletter Sign Up

Receive the HVAD Patient and Provider newsletter to learn about events and resources designed to support HVAD patient management.

Sign-up here