Platelet Aggregation Before Aspirin Initiation in Pediatric Patients With Congenital Heart Disease at High Risk of Thrombosis

BackgroundAspirin following unfractionated heparin is the most common anticoagulation strategy for pediatric patients who experienced cardiac surgery at high risk of thrombosis. The platelet aggregation test is the golden method to evaluate the aspirin effect on platelet function. However, the plate...

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Main Authors: Zhong-Yuan Lu, Zhi-Yuan Zhu, Ju-Xian Yang, Yu-Zi Zhou, Ya-Zhou Jiang, Wei Wei, Xu Wang, Shou-Jun Li
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-07-01
Series:Frontiers in Cardiovascular Medicine
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fcvm.2022.813190/full
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author Zhong-Yuan Lu
Zhi-Yuan Zhu
Ju-Xian Yang
Yu-Zi Zhou
Ya-Zhou Jiang
Wei Wei
Xu Wang
Shou-Jun Li
author_facet Zhong-Yuan Lu
Zhi-Yuan Zhu
Ju-Xian Yang
Yu-Zi Zhou
Ya-Zhou Jiang
Wei Wei
Xu Wang
Shou-Jun Li
author_sort Zhong-Yuan Lu
collection DOAJ
description BackgroundAspirin following unfractionated heparin is the most common anticoagulation strategy for pediatric patients who experienced cardiac surgery at high risk of thrombosis. The platelet aggregation test is the golden method to evaluate the aspirin effect on platelet function. However, the platelet aggregation basal status before postoperative aspirin initiation and the related clinical influencing factors hasn't been investigated systemically in this population.MethodsIn a prospective cohort of 247 children, arachidonic acid-induced platelet aggregation (PAG-AA) was measured by means of light transmission aggregometry (LTA) before the first dose of aspirin after cardiac surgical procedure and the perioperative variables were also collected. Distribution of this population's PAG-AA basal status was described. Univariate and multivariate logistic regression analysis were performed to identify the main influencing factors of PAG-AA.ResultsThe median time of aspirin administration was 2 (1–27) days after surgery and the corresponding median value of basal PAG-AA was 20.70% (1.28–86.49%), with 67.6% population under 55% and 47.8% population under 20%. Patients undergoing cardiopulmonary bypass (CPB) had a significantly lower basal PAG-AA than those without (30.63 ± 27.35 vs. 57.91 ± 27.58, p = 0.013). While patients whose test done within 3 days after CPB had a significantly lower PAG-AA than those out of 3 days (25.61 ± 25.59 vs. 48.59 ± 26.45, p = 0.001). Univariate analysis implied that the influencing factors of the basal PAG-AA including CPB use, test time point, cyanosis, and platelet count. Multivariate regression analysis indicated that only CPB use, test time point, and platelet count were the main independent influencing factors for the basal PAG-AA.ConclusionThe majority of children have impaired basal platelet aggregometry responses before postoperative aspirin initiation. The main influencing factors are CPB use, test time point, and platelet count. To establish the platelet aggregometry baseline prior to commencement of aspirin therapy, testing should be performed 3 days later following the procedure when effect of CPB is basically over.
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spelling doaj.art-d56bb83ddef044539a12e9a772c8a0a82022-12-22T03:38:53ZengFrontiers Media S.A.Frontiers in Cardiovascular Medicine2297-055X2022-07-01910.3389/fcvm.2022.813190813190Platelet Aggregation Before Aspirin Initiation in Pediatric Patients With Congenital Heart Disease at High Risk of ThrombosisZhong-Yuan Lu0Zhi-Yuan Zhu1Ju-Xian Yang2Yu-Zi Zhou3Ya-Zhou Jiang4Wei Wei5Xu Wang6Shou-Jun Li7Pediatric Intensive Care Unit, Pediatric Cardiac Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, ChinaPediatric Intensive Care Unit, Pediatric Cardiac Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, ChinaPediatric Intensive Care Unit, Pediatric Cardiac Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, ChinaPediatric Intensive Care Unit, Pediatric Cardiac Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, ChinaPediatric Intensive Care Unit, Pediatric Cardiac Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, ChinaPediatric Intensive Care Unit, Pediatric Cardiac Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, ChinaPediatric Intensive Care Unit, Pediatric Cardiac Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, ChinaDepartment of Cardiac Surgery, Pediatric Cardiac Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, ChinaBackgroundAspirin following unfractionated heparin is the most common anticoagulation strategy for pediatric patients who experienced cardiac surgery at high risk of thrombosis. The platelet aggregation test is the golden method to evaluate the aspirin effect on platelet function. However, the platelet aggregation basal status before postoperative aspirin initiation and the related clinical influencing factors hasn't been investigated systemically in this population.MethodsIn a prospective cohort of 247 children, arachidonic acid-induced platelet aggregation (PAG-AA) was measured by means of light transmission aggregometry (LTA) before the first dose of aspirin after cardiac surgical procedure and the perioperative variables were also collected. Distribution of this population's PAG-AA basal status was described. Univariate and multivariate logistic regression analysis were performed to identify the main influencing factors of PAG-AA.ResultsThe median time of aspirin administration was 2 (1–27) days after surgery and the corresponding median value of basal PAG-AA was 20.70% (1.28–86.49%), with 67.6% population under 55% and 47.8% population under 20%. Patients undergoing cardiopulmonary bypass (CPB) had a significantly lower basal PAG-AA than those without (30.63 ± 27.35 vs. 57.91 ± 27.58, p = 0.013). While patients whose test done within 3 days after CPB had a significantly lower PAG-AA than those out of 3 days (25.61 ± 25.59 vs. 48.59 ± 26.45, p = 0.001). Univariate analysis implied that the influencing factors of the basal PAG-AA including CPB use, test time point, cyanosis, and platelet count. Multivariate regression analysis indicated that only CPB use, test time point, and platelet count were the main independent influencing factors for the basal PAG-AA.ConclusionThe majority of children have impaired basal platelet aggregometry responses before postoperative aspirin initiation. The main influencing factors are CPB use, test time point, and platelet count. To establish the platelet aggregometry baseline prior to commencement of aspirin therapy, testing should be performed 3 days later following the procedure when effect of CPB is basically over.https://www.frontiersin.org/articles/10.3389/fcvm.2022.813190/fullplatelet aggregationcongenital heart diseasechildrenbasal statusinfluencing factors
spellingShingle Zhong-Yuan Lu
Zhi-Yuan Zhu
Ju-Xian Yang
Yu-Zi Zhou
Ya-Zhou Jiang
Wei Wei
Xu Wang
Shou-Jun Li
Platelet Aggregation Before Aspirin Initiation in Pediatric Patients With Congenital Heart Disease at High Risk of Thrombosis
Frontiers in Cardiovascular Medicine
platelet aggregation
congenital heart disease
children
basal status
influencing factors
title Platelet Aggregation Before Aspirin Initiation in Pediatric Patients With Congenital Heart Disease at High Risk of Thrombosis
title_full Platelet Aggregation Before Aspirin Initiation in Pediatric Patients With Congenital Heart Disease at High Risk of Thrombosis
title_fullStr Platelet Aggregation Before Aspirin Initiation in Pediatric Patients With Congenital Heart Disease at High Risk of Thrombosis
title_full_unstemmed Platelet Aggregation Before Aspirin Initiation in Pediatric Patients With Congenital Heart Disease at High Risk of Thrombosis
title_short Platelet Aggregation Before Aspirin Initiation in Pediatric Patients With Congenital Heart Disease at High Risk of Thrombosis
title_sort platelet aggregation before aspirin initiation in pediatric patients with congenital heart disease at high risk of thrombosis
topic platelet aggregation
congenital heart disease
children
basal status
influencing factors
url https://www.frontiersin.org/articles/10.3389/fcvm.2022.813190/full
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