Different Clinicoradiological Characteristics of Posterior Reversible Encephalopathy Syndrome in Pediatric Oncology and Post-Bone Marrow Transplantation Cases: A Retrospective Study

Posterior reversible encephalopathy syndrome (PRES) is receiving increasing recognition in pediatrics. However, comparisons between PRES in pediatric oncology and post-bone marrow transplantation (BMT) are lacking. Therefore, we aimed to describe the risk factors and clinical and radiological featur...

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Main Authors: Hwazen Shash, Saad Aldaama, Hala Omer, Sameera Alafghani
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-05-01
Series:Frontiers in Neurology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fneur.2022.836033/full
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author Hwazen Shash
Hwazen Shash
Saad Aldaama
Hala Omer
Sameera Alafghani
author_facet Hwazen Shash
Hwazen Shash
Saad Aldaama
Hala Omer
Sameera Alafghani
author_sort Hwazen Shash
collection DOAJ
description Posterior reversible encephalopathy syndrome (PRES) is receiving increasing recognition in pediatrics. However, comparisons between PRES in pediatric oncology and post-bone marrow transplantation (BMT) are lacking. Therefore, we aimed to describe the risk factors and clinical and radiological features of PRES and investigate the differences between PRES in pediatric oncology and post-BMT. The PRES data of 13 patients from our center were combined with those of 217 cases from the PubMed, Scopus, and Web of Science databases. The patients were divided into either an oncology or a post-BMT group. We included 230 patients in the analysis, 26.1% of whom belonged to the post-BMT group. Oncology patients developed PRES at a younger age (p = 0.010) and were more likely to develop encephalopathy (p = 0.004). Systemic hypertension (S-HTN) preceding PRES occurred in 43.5% (66/154) of patients. Post-BMT patients were more likely to have S-HTN (p = 0.003). Cyclosporine levels were detected in 37 patients; 40.5% had supra-therapeutic levels. The radiological findings were atypical in 74.3% of patients, and delayed repeated imaging increased the occurrence of resolution (p = 0.004). Sixteen (7%) patients developed PRES recurrence after a median of 8 weeks, with the between-group difference being non-significant. Oncology patients were more likely to develop chronic epilepsy, while BMT patients were more likely to develop rare neurologic abnormalities (p < 0.001). In conclusion, atypical clinical presentation and imaging findings should not hinder the diagnosis of PRES. S-HTN is a risk factor, particularly in post-BMT patients. Supra-therapeutic levels of cyclosporine and previous exposure to immunosuppression did not increase the risk of recurrence.
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spelling doaj.art-0a1bfc5ca45446c197cc6195c44732702022-12-22T02:54:32ZengFrontiers Media S.A.Frontiers in Neurology1664-22952022-05-011310.3389/fneur.2022.836033836033Different Clinicoradiological Characteristics of Posterior Reversible Encephalopathy Syndrome in Pediatric Oncology and Post-Bone Marrow Transplantation Cases: A Retrospective StudyHwazen Shash0Hwazen Shash1Saad Aldaama2Hala Omer3Sameera Alafghani4College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi ArabiaDepartment of Pediatrics, King Fahad Hospital of the University, Al-Khobar, Saudi ArabiaDepartment of Pediatric Hematology-Oncology and Stem Cell Transplantation, King Fahad Specialist Hospital, Dammam, Saudi ArabiaDepartment of Pediatric Hematology-Oncology and Stem Cell Transplantation, King Fahad Specialist Hospital, Dammam, Saudi ArabiaDepartment of Pediatric Hematology-Oncology and Stem Cell Transplantation, King Faisal Specialist Hospital & Research Center, Riyadh, Saudi ArabiaPosterior reversible encephalopathy syndrome (PRES) is receiving increasing recognition in pediatrics. However, comparisons between PRES in pediatric oncology and post-bone marrow transplantation (BMT) are lacking. Therefore, we aimed to describe the risk factors and clinical and radiological features of PRES and investigate the differences between PRES in pediatric oncology and post-BMT. The PRES data of 13 patients from our center were combined with those of 217 cases from the PubMed, Scopus, and Web of Science databases. The patients were divided into either an oncology or a post-BMT group. We included 230 patients in the analysis, 26.1% of whom belonged to the post-BMT group. Oncology patients developed PRES at a younger age (p = 0.010) and were more likely to develop encephalopathy (p = 0.004). Systemic hypertension (S-HTN) preceding PRES occurred in 43.5% (66/154) of patients. Post-BMT patients were more likely to have S-HTN (p = 0.003). Cyclosporine levels were detected in 37 patients; 40.5% had supra-therapeutic levels. The radiological findings were atypical in 74.3% of patients, and delayed repeated imaging increased the occurrence of resolution (p = 0.004). Sixteen (7%) patients developed PRES recurrence after a median of 8 weeks, with the between-group difference being non-significant. Oncology patients were more likely to develop chronic epilepsy, while BMT patients were more likely to develop rare neurologic abnormalities (p < 0.001). In conclusion, atypical clinical presentation and imaging findings should not hinder the diagnosis of PRES. S-HTN is a risk factor, particularly in post-BMT patients. Supra-therapeutic levels of cyclosporine and previous exposure to immunosuppression did not increase the risk of recurrence.https://www.frontiersin.org/articles/10.3389/fneur.2022.836033/fullposterior leukoencephalopathy syndromecyclosporinebone marrow transplantationhypomagnesemiasystematic hypertensionrisk factors
spellingShingle Hwazen Shash
Hwazen Shash
Saad Aldaama
Hala Omer
Sameera Alafghani
Different Clinicoradiological Characteristics of Posterior Reversible Encephalopathy Syndrome in Pediatric Oncology and Post-Bone Marrow Transplantation Cases: A Retrospective Study
Frontiers in Neurology
posterior leukoencephalopathy syndrome
cyclosporine
bone marrow transplantation
hypomagnesemia
systematic hypertension
risk factors
title Different Clinicoradiological Characteristics of Posterior Reversible Encephalopathy Syndrome in Pediatric Oncology and Post-Bone Marrow Transplantation Cases: A Retrospective Study
title_full Different Clinicoradiological Characteristics of Posterior Reversible Encephalopathy Syndrome in Pediatric Oncology and Post-Bone Marrow Transplantation Cases: A Retrospective Study
title_fullStr Different Clinicoradiological Characteristics of Posterior Reversible Encephalopathy Syndrome in Pediatric Oncology and Post-Bone Marrow Transplantation Cases: A Retrospective Study
title_full_unstemmed Different Clinicoradiological Characteristics of Posterior Reversible Encephalopathy Syndrome in Pediatric Oncology and Post-Bone Marrow Transplantation Cases: A Retrospective Study
title_short Different Clinicoradiological Characteristics of Posterior Reversible Encephalopathy Syndrome in Pediatric Oncology and Post-Bone Marrow Transplantation Cases: A Retrospective Study
title_sort different clinicoradiological characteristics of posterior reversible encephalopathy syndrome in pediatric oncology and post bone marrow transplantation cases a retrospective study
topic posterior leukoencephalopathy syndrome
cyclosporine
bone marrow transplantation
hypomagnesemia
systematic hypertension
risk factors
url https://www.frontiersin.org/articles/10.3389/fneur.2022.836033/full
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