Association of pediatric COVID‐19 and subarachnoid hemorrhage

Dear Editor, We read with great interest an article from Li et al1 describing “The Neuroinvasive Potential of SARS-CoV2 May Play a Role in the Respiratory Failure of COVID-19 Patients.” Here, we describe subarachnoid hemorrhage (SAH) as a severe neurological manifestation associated with pediatric COVID-19. A 9-year-old boy presented with cardiopulmonary arrest and low Glasgow Coma Scale (GCS) and COVID-19 symptoms, including respiratory insufficiency, fever, nausea, abdominal pain, headache, anorexia, and fatigue. He had no past medical history and close contact with a person who tested positive for COVID-19. Reverse transcription-polymerase chain reaction (RT-PCR) from nasopharyngeal swab specimens confirmed positive COVID-19. Laboratory testing (Table 1) revealed the development of nonoliguric renal failure due to a fourfold increase in creatinine. The patient blood-type was A+. He received intravenous dopamine for low blood pressure and fresh frozen plasma (FFP) in addition to meropenem, vancomycin, azithromycin, oseltamivir, levofloxacin, lopinavir/ritonavir, and hydroxychloroquine. Chest computed tomography (CT) scan (Figure 1) was performed two times: On the first day of hospitalization, the scan exhibited consolidation at posterior basal segments of both lungs with air bronchogram sign and on the second day, it revealed a consolidation with the progression of air bronchogram and a mild right-sided pleural effusion occurred. Due to fixed and dilated pupils on the second day, the brain CT scan (Figure 1F) uncovered the hyperdensity at basal cisterns, interhemispheric and bilateral Sylvian fissures in favor of SAH, and reduction of white matter density in favor of brain edema. The World Federation of Neurologic Surgeons grading scale for SAH was 5. Timely follow-up chest CT along with RT-PCR confirmed COVID-19 pneumonia in which pediatric pulmonary damage and hypoxemia affected multiorgan systems owing to the involvement of the lung parenchyma. Finally, he died after 2 days of hospitalization. Furthermore, there were no lesions in anatomical pathways of cerebral arteries in favor of cerebral aneurysm and no suspected parenchymal lesions observed for arteriovenous malformation. We speculate that infection as a miscellaneous cause of SAH had taken place, based on previous data that showed infection triggers SAH.2 Pediatric COVID-19 appeared with mild symptoms3 with severe complications of COVID-19 less frequent than adults.4 However, the clinical course and complications related to the COVID-19 in children are still unclear. One of the reasons is that parents show immense fear to take the children to the hospital during the coronavirus crisis. Striking evidence exhibited that COVID-19 impacts multiorgan system in adults, including the central nervous system (CNS) and cerebrovascular events (CVEs) including intracranial hemorrhage, has been published in association with this infection.5 While infections have been described in relation to SAH little is known about the pediatric COVID-19 infection.2 Severe COVID-19 may cause neurologic manifestations because the virus has the potential to enter the CNS through hematogenous spread or retrograde neuronal route.6 The expression of angiotensin-converting enzyme 2 (ACE2) as the SARS-CoV-2 main receptor in the brain may promote virus entry.7 The direct route of neuroinvasion has not been established for SARS-CoV-2 so far but the virus or its particles were present in brain autopsy samples.8 Aside from direct CNS infection, consequences of peripheral infection such as hyperinflammation and cytokine storm, endothelial injury, coagulopathy, and unopposed Ang II activation due to ACE2 reduction leading to vasoconstriction and hypertension are possible mechanisms for CVEs.9 An increase in leukocyte count and elevated C-reactive protein (CRP) in the presented case might be interpreted as activation of the immune system and inflammation that can be associated with both COVID-19 and SAH. CRP is an inflammatory marker that has been revealed to be associated with the severity of COVID-19.10 A recent report of SAH in a SARS-COV-2-infected adult patient linked the event with abnormal coagulation or cytokine storm.11 Moreover, ABO blood-type might have a prognostic role in the severity of COVID-19. There is a positive association between ACE activity and the GATC haplotype of the ABO gene, which is prevalent in non-O blood group. Thus, patients with blood-type O might have protection against severe COVID-19.12 However, patients with blood group type A, as the patient described in this report, might be more predisposed to severe infection. Overall, we describe a pediatric COVID-19 case associated with nonoliguric renal injury and SAH. The presented case of pediatric COVID-19 developing SAH, while he had no underlying neurological disease, highlights that children are at risk of severe complications of COVID-19 and immediate medical care is required. The authors declare that there are no conflict of interests.

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