Effect of Nocturnal Oxygen Therapy on Electrocardiographic Changes Among Patients with Congestive Heart Failure

Mehdi Pishgahi; Rama Bozorgmehr; Masoud Rastgari; Mohammad Amin Abbasi

doi:10.20286/ijcp-010204

International Journal of Cardiovascular Practice

Current Issue All Issues In Press Accepted Manuscripts Search

Journal Information Editors & Boards Indexing and Listing Sources Journal Metrics Open Peer Review (OPR)Publication Ethics and Malpractice Statement Contact Us Support Reviewer and AE Registration Form

Authors Guide Submit Manuscript

https://doi.org/10.20286/ijcp-010204

Effect of Nocturnal Oxygen Therapy on Electrocardiographic Changes Among Patients with Congestive Heart Failure

Author(s):

Mehdi Pishgahi

^1,*,

Rama Bozorgmehr²,

Masoud Rastgari²,

Mohammad Amin Abbasi²

1Department of Cardiology, Faculty of Medicine, Shohada Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran

2Department of Internal Medicine, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran

International Journal of Cardiovascular Practice:Vol. 1, issue 2; 33-35

Published online:Aug 02, 2016

Article type:Research Article

Received:Jun 10, 2016

Accepted:Jun 27, 2016

How to Cite:Mehdi PishgahiRama BozorgmehrMasoud RastgariMohammad Amin AbbasiEffect of Nocturnal Oxygen Therapy on Electrocardiographic Changes Among Patients with Congestive Heart Failure.Int J Cardiovasc Pract.1(2):e130040.https://doi.org/10.20286/ijcp-010204.

Abstract

Introduction: Nocturnal hypoxia is an important factor in increasing the risk of mortality in patients with chronic heart failure and is associated with atrial and ventricular arrhythmias. In addition, QT dispersion (QTd) is used as a prognostic sign in determining future malignant arrhythmias and sudden cardiac death. In the current study, we investigated the effect of nocturnal oxygen therapy (NOT) on electrocardiographic changes among patients with chronic heart failure.

Methods: In this study, a consecutive of 154 patients (87 males and 67 females) known with chronic heart failure (EF ≤ 40%) were enrolled. The patients were administered NOT (oxygen flow of 2 L/min for 8 hours during sleeping). Electrocardiography was taken before and after the NOT, and RR interval, PR interval and QTd were measured each time.

Results: The mean age of the participants was 61.3 ± 11.4 years. Our results revealed significant reduction in QTd (55.8 ± 7.5 vs. 61.4 ± 9.1 msec, P = 0.001) and heart rate (79.6 ± 4.7 vs. 76.8 ± 4.3, P = 0.001) in a patient’s electrocardiogram after NOT.

Conclusions: In this study, NOT decreased heart rate and QTd in patients with chronic heart failure, but not PR interval, which could consequently decrease the risk of malignant arrhythmias and sudden cardiac death.

Keywords

Arrhythmias

Oxygen Inhalation Therapy

Heart Failure

Cardiac

Fulltext

Full-text is available in PDF file.

comments

Crossmark

Checking

Share on

Comments

Number of Comments:0

Cited by

CrossRef 0

Metrics

Get Permission (article level)

Purchasing Reprints

Copyright Clearance Center (CCC) handles bulk orders for article reprints for Brieflands. To place an order for reprints, please click here ( https://www.copyright.com/landing/reprintsinquiryform/ ). Clicking this link will bring you to a CCC request form where you can provide the details of your order. Once complete, please click the ‘Submit Request’ button and CCC’s Reprints Services team will generate a quote for your review.

Search Relations

Author(s):

Mehdi Pishgahi:[PubMed][Scholar]
Rama Bozorgmehr:[PubMed][Scholar]
Masoud Rastgari:[PubMed][Scholar]
Mohammad Amin Abbasi:[PubMed][Scholar]