---
title: How Flow Measurements Helped Manage Heart Failure After Implantation
description: How Transonic® real-time flow measurement helped both in the diagnosis and the management of right heart failure, including the weaning from ECMO.
image: https://blog.transonic.com/hubfs/flow-measurments-manage-heart-failure.jpg
---

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# How Flow Measurements Helped Manage Heart Failure After Implantation

By [Thomas Gole, DO, FAAFP](https://blog.transonic.com/cardiothoracic-surgery/author/thomas-gole-do-faafp)16 Mar 2016

![flow-measurments-manage-heart-failure.jpg](https://blog.transonic.com/hs-fs/hubfs/flow-measurments-manage-heart-failure.jpg?width=348&height=231&name=flow-measurments-manage-heart-failure.jpg "flow-measurments-manage-heart-failure.jpg")A common complication following implantation of a ventricular assist device (VAD) is acute right heart failure. To manage this complication effectively, left ventricular preload and contractility must be estimated reliably.

A 66-year-old female with end-stage heart failure was implanted with a HeartAssist 5 (from Micromed Cardiovascular Inc. of Houston) with a custom Transonic® Flowprobe on the VAD’s outflow graft to [continuously measure real-time pump blood flow](https://www.transonic.com/resources/cardiothoracic/beneficial-aspects-of-real-time-flow-measurements-for-the-management-of-acute-right-ventricular-heart-failure-following-continuous-flow-ventricular-assist-device-vad-implantation/). On days one and two post-op, mean flow through the graft was 4.8 L/min. On day three post-op, real-time flow began a progressive decline that was accompanied by an increase in central venous pressure and progressive renal failure.

By day 10 post-op, the patient had to be placed on VA extracorporeal membrane oxygenation (ECMO). The ECMO circuit included a CentriMag pump with a “Transonic Inside” flow board and a H9XLA Flowsensor. Real-time flow and pulsatility recovered immediately and the ECMO circuit was disconnected on day 14 post-op. The patient’s further recovery was uneventful.

**Monitoring of the left ventricular preload and contractility throughout the post-operative period with Transonic® real-time flow measurement helped both in the diagnosis and the management of right heart failure, including the weaning from ECMO.**

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