eISSN: 1897-4252
ISSN: 1731-5530
Kardiochirurgia i Torakochirurgia Polska/Polish Journal of Thoracic and Cardiovascular Surgery
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4/2020
vol. 17
 
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abstract:
Original paper

Determination of acute changes in new ECG parameters during veno-venous ECMO support

Hakan Göçer
1
,
Ahmet Baris Durukan
2
,
Erdinç Naseri
3
,
Mustafa Ünal
4

  1. Private Korfez Hospital, Edremit, Balıkesir, Turkey
  2. MediGüneş, Salihli Private Hospital, Salihli, Manisa, Turkey
  3. Afyon Park Hospital, Afyon, Turkey
  4. Bishkek Bicard Klinik, Bishkek, Kyrgyzstan
Kardiochir Torakochir Pol 2020; 17 (4): 189-192
Online publish date: 2021/01/15
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Introduction
Veno-venous extracorporeal membrane oxygenation (ECMO) support has been used for respiratory insufficiency. Its role in blood oxygenation has been well documented. However, the effects on myocardial electrophysiology have not been studied in detail. Aim: To reveal the acute effects of extracorporeal support on new electrocardiography (ECG) parameters in patients with preserved left ventricular functions.

Material and methods
This retrospective study was conducted in three separate clinics. Sixteen consecutive patients under veno-venous ECMO for respiratory insufficiency who soon could be successfully weaned were analyzed. Immediately before and 2 hours after initiation of ECMO, ECG was performed. P wave, QT, QTc and T wave peak to end were measured and calculated from obtained surface 12-lead ECG.

Results
There were statistically significant differences immediately before and 2 hours after initiation of ECMO treatment in the Tp-e interval and Tp-e/QTc ratio, the maximum QTc, minimum QTc, and QTc dispersion values, and P wave dispersion (p < 0.0001 for each). All ECG parameters were significantly decreased with ECMO support.

Conclusions
All atrial and ventricular repolarization parameters were decreased in patients with VV-ECMO support. Despite the limited role of ECMO in intractable arrhythmias, the findings of the study revealed that ECMO therapy for respiratory insufficiency may improve atrial ventricular depolarization and repolarization. Therefore, simple 12-lead surface ECG with new ECG parameters may be evaluated for better outcomes.

keywords:

extracorporeal membrane oxygenation, electrocardiography, new ECG parameters

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