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Kardiochirurgia i Torakochirurgia Polska/Polish Journal of Thoracic and Cardiovascular Surgery
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1/2024
vol. 21
 
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Letter to the Editor

Comment on: “Evaluation of perioperative risk factors in pediatric patients with left ventricle outflow tract obstruction”

Rohan Magoon
1
,
Mukesh Kumar
1
,
Jes Jose
2

  1. Department of Cardiac Anaesthesia, Atal Bihari Vajpayee Institute of Medical Sciences (ABVIMS) and Dr. Ram Manohar Lohia Hospital, New Delhi, India
  2. Department of Cardiac Anaesthesiology, Sri Jayadeva Institute of Cardiovascular Sciences and Research, Bengaluru, India
Kardiochirurgia i Torakochirurgia Polska 2024; 21 (1): 70
Online publish date: 2024/03/30
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Önemli et al. retrospectively evaluated the perioperative risk factors contributing to post-surgical complications in 58 pediatric patients with left ventricle outflow tract obstruction (LVOTO) [1]. Duly acknowledging the merit of the research idea, we wish to present our reflections on this subject of clinical interest.

Of note, the nutritional status of the pediatric surgical subset, especially in the developing world, happens to be often compromised wherein the inexorable systemic inflammatory response to cardiopulmonary bypass (CPB) only furthers the contextual predisposition to postoperative complications [2, 3]. Meanwhile, Önemli et al. delineated the inflammatory role of the neutrophil-to-lymphocyte ratio (NLR) in their pediatric patients with LVOTO; it is on juxtaposing the nutritional and the pro-inflammatory predilection that the absence of an account for the preoperative serum albumin (SA) becomes particularly difficult to overlook in the index analysis [1, 2, 4]. Indeed, the independent researchers Leite et al. noted that hypoalbuminemia was a common finding in children with heart disease where SA < 3 g/dl was found to be associated with poor postoperative outcomes such as surgical infections and, for that matter, mortality (p-values of 0.0026 and 0.0138, respectively) in their study population [2]. At the same time, a retrospective analysis by Lee et al. revealed important links between the preoperative SA levels and postoperative acute kidney injury in a pediatric cardiac surgical setting involving a total of 505 patients (odds ratio: 0.506, 95% confidence interval: 0.325–0.788, p = 0.003) [4]. Even more interestingly, Yoon et al., albeit in an adult cardiac surgical cohort, reported evidence for lower SA levels in patients with elevated hematological inflammatory indices such as the systemic immune-inflammation index (SII), which is computed as the NLR × platelet count [5].

In reference to the intraoperative details also, one remains perplexed as to the corresponding doses of the vasoactive drug infusions employed in the Önemli et al. study participants given the authors’ presentation of the percentage of the patients receiving the respective vasopressor or the inotrope [1]. Herein, they could have very well resorted to the use of any of the described dose summative formulas such as the vasoactive-inotropic score (VIS), for the purpose of hemodynamic support quantification [1, 6]. Moreover, relevant literature exists to suggest the prognostic implications of VIS itself in pediatric cardiac surgery [6]. Last but not least, the elucidation of the authors’ institutional practices regarding the degree of hypothermia CPB, the use of prophylactic steroids, and modified ultrafiltration could have contributed to the lucidity of their study findings [1, 7].

Disclosure

The authors report no conflict of interest.

References

1 

Önemli CS, Şahin KE, Karaçelik M, Bilen Ç. Evaluation of perioperative risk factors in pediatric patients with left ventricle outflow tract obstruction. Kardiochir Torakochirurgia Pol 2023; 20: 220-227.

2 

Leite HP, Fisberg M, de Carvalho WB, de Camargo Carvalho AC. Serum albumin and clinical outcome in pediatric cardiac surgery. Nutrition 2005; 21: 553-558.

3 

Walian A, Kohli JK, Magoon R, Kashav RC, Shri I, Dey S, Jhajhria NS. Retrospective evaluation of platelet-leukocyte indices and cardiac surgical outcomes in acyanotic heart disease patients with pulmonary hypertension (REPLICA-PH). Braz J Cardiovasc Surg 2022; 37: 866-874.

4 

Lee JH, Jung JY, Park SW, Song IK, Kim EH, Kim HS, Kim JT. Risk factors of acute kidney injury in children after cardiac surgery. Acta Anaesthesiol Scand 2018; 62: 1374-1382.

5 

Yoon J, Jung J, Ahn Y, Oh J. Systemic immune-inflammation index predicted short-term outcomes in patients undergoing isolated tricuspid valve surgery. J Clin Med 2021; 10: 4147.

6 

Davidson J, Tong S, Hancock H, Hauck A, da Cruz E, Kaufman J. Prospective validation of the vasoactive-inotropic score and correlation to short-term outcomes in neonates and infants after cardiothoracic surgery. Intensive Care Med 2012; 38: 1184-1190.

7 

Vakamudi M, Ravulapalli H, Karthikeyan R. Recent advances in paediatric cardiac anaesthesia. Indian J Anaesth 2012; 56: 485-490.

Copyright: © 2024 Polish Society of Cardiothoracic Surgeons (Polskie Towarzystwo KardioTorakochirurgów) and the editors of the Polish Journal of Cardio-Thoracic Surgery (Kardiochirurgia i Torakochirurgia Polska). This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) License (http://creativecommons.org/licenses/by-nc-sa/4.0/), allowing third parties to copy and redistribute the material in any medium or format and to remix, transform, and build upon the material, provided the original work is properly cited and states its license.
 
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