{"doi":"10.3390/kidneydial5020012","title":"Cerebral Hemodynamic Alterations in Dialysis COVID-19 Survivors: A Transcranial Doppler Ultrasound Study on Intracranial Pressure Dynamics","abstract":"Background: We observed a COVID-19 survivor with a ventriculoperitoneal shunt who developed increased intracranial pressure during hemodialysis. We hypothesized that post-SARS-CoV-2 infection, patients may have altered cerebral perfusion pressure regulation in response to intracranial pressure changes. Methods: From April to July 2021, we recruited dialysis patients with prior COVID-19 from two Madrid nephrology departments. We also recruited age- and sex-matched dialysis patients without prior SARS-CoV-2 infection. Transcranial Doppler ultrasound was used to measure the middle cerebral artery velocity before dialysis and 30, 60, and 90 min after the initiation of dialysis. Results: The final sample included 37 patients (16 post-COVID-19 and 21 without). The COVID-19 survivors showed a significant pulsatility index increase between 30 and 60 min compared to those without COVID-19. They also had lower heart rates. Conclusions: We propose two mechanisms: an increase in intracranial pressure or a decreased arterial elasticity. A lower heart rate was also observed in the COVID-19 survivors. This study highlights SARS-CoV-2's multifaceted effects, including potential long-term vascular and cerebral repercussions.","journal":"Kidney and Dialysis","year":2025,"id":563672,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":0,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.942,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2025-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":1466920,"name":"Daniel Fouz-Ruiz","orcid":null,"position":1,"is_corresponding":false},{"id":1403002,"name":"Mariano Ruiz-Ortiz","orcid":"0000-0001-9993-1865","position":2,"is_corresponding":false},{"id":1466921,"name":"E. San-Pedro-Murillo","orcid":null,"position":3,"is_corresponding":false},{"id":1466668,"name":"Sara Gómez-Enjuto","orcid":"0000-0003-3247-4246","position":4,"is_corresponding":false},{"id":1466922,"name":"Inés Hernando-Jimenez","orcid":null,"position":5,"is_corresponding":false},{"id":1466669,"name":"Aida Frías","orcid":"0000-0002-2266-5180","position":6,"is_corresponding":false},{"id":1466923,"name":"Andrea Suso","orcid":null,"position":7,"is_corresponding":false},{"id":1466924,"name":"Evangelina Mérida-Herrero","orcid":null,"position":8,"is_corresponding":false},{"id":369722,"name":"Julián Benito‐León","orcid":"0000-0002-1769-4809","position":9,"is_corresponding":false},{"id":1010272,"name":"José Lapeña-Motilva","orcid":null,"position":0,"is_corresponding":true}],"reference_count":34,"raw_metadata":null,"created_at":"2026-07-19T02:56:17.117043Z","pmid":"40336917","pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}