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Evaluation of perfusion index and left ventricular output changes in low cardiac output syndrome after arterial switch operation

Published online by Cambridge University Press:  06 January 2023

Dilek Yavuzcan Öztürk*
Affiliation:
Department of Neonatology, Istanbul Saglik Bilimleri University Basaksehir Cam and Sakura Hospital, Istanbul, Turkey
Erkut Öztürk
Affiliation:
Department of Pediatric Cardiology, Istanbul Saglik Bilimleri University Basaksehir Cam and Sakura Hospital, Istanbul, Turkey
Rahime Tuten Dıkmen
Affiliation:
Department of Pediatric Cardiology, Istanbul Saglik Bilimleri University Basaksehir Cam and Sakura Hospital, Istanbul, Turkey
Hatice Dilek Ozcanoglu
Affiliation:
Department of Anaesthesiology and Reanimation, Istanbul Saglik Bilimleri University Basaksehir Cam and Sakura Hospital, Istanbul, Turkey
Hamza Halil Toprak
Affiliation:
Department of Pediatric Cardiology, Istanbul Saglik Bilimleri University Basaksehir Cam and Sakura Hospital, Istanbul, Turkey
Behzat Tuzun
Affiliation:
Department of Pediatric Cardiovascular Surgery, Istanbul Saglik Bilimleri University Basaksehir Cam and Sakura Hospital, Istanbul, Turkey
İbrahim Cansaran Tanıdır
Affiliation:
Department of Pediatric Cardiology, Istanbul Saglik Bilimleri University Basaksehir Cam and Sakura Hospital, Istanbul, Turkey
Ali Can Hatemi
Affiliation:
Department of Pediatric Cardiovascular Surgery, Istanbul Saglik Bilimleri University Basaksehir Cam and Sakura Hospital, Istanbul, Turkey
Merih Cetinkaya
Affiliation:
Department of Neonatology, Istanbul Saglik Bilimleri University Basaksehir Cam and Sakura Hospital, Istanbul, Turkey
*
Author for correspondence: Dilek Yavuzcan Ozturk, MD, Department of Neonatology, Istanbul Saglik Bilimleri University Basaksehir Cam and Sakura Hospital, Başakşehir Mahallesi G-434 Caddesi No: 2L Başakşehir, Istanbul, Turkey. Tel: +90 212 909 60 00; Fax: +90 212 909 60 00. E-mail: drdileky@gmail.com

Abstract

Introduction:

Transposition of great arteries is one of newborns' most common cyanotic CHDs, and its treatment is arterial switch operation in the first days of life. Low cardiac output syndrome may develop in the early postoperative period. In this study, we evaluated perfusion index and left ventricular output blood flow changes in patients who underwent arterial switch operation and developed low cardiac output syndrome.

Methods:

This study was conducted prospectively in newborns with transposition of great arteries who underwent arterial switch operation between 1st August 2020 and 1st August 2022. Low cardiac output syndrome score and left ventricular output were investigated. Initially, 6th, 12th, 18th, and 24th hour perfusion index and left ventricular output values of patients with and without low cardiac output syndrome were recorded. The results were evaluated statistically.

Results:

A total of 60 patients were included in the study. Sex distribution was equal. The median age at the time of surgery was 5 days (interquartile range 3–7 days), and the median weight was 3.1 kg (interquartile range 2.9–3. 4). Low cardiac output syndrome was detected in 30% (n = 18) of cases. The median perfusion index of patients who developed low cardiac output syndrome was significantly lower at the 12th, 18th, and 24th hours (p < 0.05) (0.99 versus 1.25, 0.86 versus 1.21, and 0.96 versus 1.33, respectively). Similarly, the median left ventricular output of patients who developed low cardiac output syndrome was significantly lower at 12th, 18th, and 24th hours (p < 0.05) (95 versus 110 ml/kg/min, 89 versus 109 ml/kg/min, and 92 versus 112 ml/kg/min, respectively). There was a significant correlation between perfusion index values and left ventricular output at all measurements (r > 0.500, p < 0.05).

Conclusion:

Perfusion index and left ventricular output measurements decreased in newborns who developed low cardiac output syndrome after arterial switch operation, especially at 12th and 18th hours. Serial perfusion index and left ventricular output measurements can be instructive in predicting low cardiac output syndrome development.

Type
Original Article
Copyright
© The Author(s), 2023. Published by Cambridge University Press

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