Oxygen therapy for patients suffering from a heart attack does not prevent heart failure

heart
Credit: CC0 Public Domain

Oxygen therapy does not prevent the development of heart failure. Neither does it reduce the long-term risk of dying for patients with suspected heart attack. This has been proven for the first time by researchers at Karolinska Institutet as a result of a major Swedish study. The study is to be presented at the European Society of Cardiology's (ESC) cardiology congress in Munich and published at the same time in the journal Circulation. The researchers expect their results to have a global impact on recommended healthcare for treating heart attacks.

Oxygen has been used to treat patients suffering a attack for more than a century, despite the fact that such treatment has not had any scientifically proven effect on patients who have normal oxygen levels in their blood. Since the turn of the millennium, researchers worldwide have started to question whether oxygen therapy for heart is ineffective—or may even be harmful.

"Our new study has filled a central gap in knowledge regarding how to treat patients suffering a heart attack. One year ago, we were able to confirm that oxygen therapy does not appear to reduce the risk of dying up to one year after the heart attack. We can now substantiate these findings for a long-term perspective and show that oxygen therapy does not reduce the development of heart failure, the most worrying complication of heart attacks. On this basis, the routine use of oxygen can now be eliminated, and healthcare personnel can concentrate on more efficient measures and rapid transport to hospital," confirms Robin Hofmann, senior consultant cardiologist and researcher at the Department of clinical science and education, Södersjukhuset, at Karolinska Institutet.

The DETO2X-AMI study was conducted at 35 Swedish hospitals, involving random treatment with or without oxygen of 6,629 patients with suspected . The result shows that in a moderate dose is not harmful but does not increase the survival rates or reduce complications, such as the development of or new heart attacks.


Explore further

Oxygen therapy does not improve survival in patients with heart attack symptoms

More information: "Long-term effects of oxygen therapy on death or hospitalization for heart failure in patients with suspected acute myocardial infarction". Tomas Jernberg, Robin Hofmann, et al for the DETO2X-SWEDEHEART investigators. Circulation (2018). DOI: 10.1161/CIRCULATIONAHA.118.036220
Journal information: Circulation

Citation: Oxygen therapy for patients suffering from a heart attack does not prevent heart failure (2018, August 26) retrieved 23 September 2020 from https://medicalxpress.com/news/2018-08-oxygen-therapy-patients-heart-failure.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
2 shares

Feedback to editors

User comments