K
Konstantinos Voumvourakis
Researcher at National and Kapodistrian University of Athens
Publications - 107
Citations - 2145
Konstantinos Voumvourakis is an academic researcher from National and Kapodistrian University of Athens. The author has contributed to research in topics: Multiple sclerosis & Stroke. The author has an hindex of 22, co-authored 96 publications receiving 1562 citations. Previous affiliations of Konstantinos Voumvourakis include University of Western Ontario & Athens State University.
Papers
More filters
Journal ArticleDOI
Blood Pressure Reduction and Secondary Stroke Prevention: A Systematic Review and Metaregression Analysis of Randomized Clinical Trials.
Aristeidis H. Katsanos,Angeliki Filippatou,Efstathios Manios,Spyridon Deftereos,John Parissis,Alexandra Frogoudaki,Agathi-Rosa Vrettou,Ignatios Ikonomidis,Maria Pikilidou,Odysseas Kargiotis,Konstantinos Voumvourakis,Anne W. Alexandrov,Andrei V. Alexandrov,Georgios Tsivgoulis +13 more
TL;DR: In this paper, the authors conducted a systematic review and metaregression analysis on the association of BP reduction with recurrent stroke and cardiovascular events using data from randomized controlled clinical trials of secondary stroke prevention.
Journal ArticleDOI
Velocity Criteria for Intracranial Stenosis Revisited: An International Multicenter Study of Transcranial Doppler and Digital Subtraction Angiography
Limin Zhao,Kristian Barlinn,Vivek Sharma,Georgios Tsivgoulis,Luis Cava,Spyros N. Vasdekis,Hock Luen Teoh,Nikos Triantafyllou,Bernard P.L. Chan,Arvind K Sharma,Konstantinos Voumvourakis,Elefterios Stamboulis,Maher Saqqur,Mark R. Harrigan,Karen C. Albright,Andrei V. Alexandrov +15 more
TL;DR: Novel velocity/ratio criteria for ≥70% stenosis increased sensitivity and showed good agreement with invasive angiography and SONIA mean flow velocity criteria remain reliably predictive of ≥50% stenoses at laboratories with a standardized scanning protocol.
Journal ArticleDOI
Neurological manifestations and implications of COVID-19 pandemic
Georgios Tsivgoulis,Lina Palaiodimou,Aristeidis H. Katsanos,Valeria Caso,Martin Köhrmann,Carlos A. Molina,Charlotte Cordonnier,Urs Fischer,Peter J. Kelly,Vivek Sharma,Amanda C. Chan,Ramin Zand,Amrou Sarraj,Peter D. Schellinger,Konstantinos Voumvourakis,Nikolaos Grigoriadis,Andrei V. Alexandrov,Sotirios Tsiodras +17 more
TL;DR: Regardless of any direct or indirect neurological manifestations, the COVID-19 pandemic has a huge impact on the management of neurological patients, whether infected or not, and the majority of stroke services worldwide have been negatively influenced in terms of care delivery and fear to access healthcare services.
Journal ArticleDOI
Transcranial Doppler versus transthoracic echocardiography for the detection of patent foramen ovale in patients with cryptogenic cerebral ischemia: A systematic review and diagnostic test accuracy meta‐analysis
Aristeidis H. Katsanos,Aristeidis H. Katsanos,Theodora Psaltopoulou,Theodoros N. Sergentanis,Alexandra Frogoudaki,Agathi-Rosa Vrettou,Ignatios Ikonomidis,Ioannis Paraskevaidis,John Parissis,Chrysa Bogiatzi,Christina Zompola,John Ellul,Nikolaos Triantafyllou,Konstantinos Voumvourakis,Athanassios P. Kyritsis,Sotirios Giannopoulos,Anne W. Alexandrov,Anne W. Alexandrov,Andrei V Alexandrov,Georgios Tsivgoulis,Georgios Tsivgoulis +20 more
TL;DR: In this paper, the authors performed a systematic literature search to identify all prospective observational studies of patients with cryptogenic cerebral ischemia that provided both sensitivity and specificity measures of transthoracic echocardiography (TTE) or transcranial Doppler (TCD) compared to the gold standard of TEE.
Journal ArticleDOI
Recurrent Stroke and Patent Foramen Ovale A Systematic Review and Meta-Analysis
Aristeidis H. Katsanos,J. David Spence,Chrysi Bogiatzi,John Parissis,Sotirios Giannopoulos,Alexandra Frogoudaki,Apostolos Safouris,Konstantinos Voumvourakis,Georgios Tsivgoulis +8 more
TL;DR: It is indicated that medically treated patients with PFO do not have a higher risk for recurrent cryptogenic cerebrovascular events, compared with those without PFO, and PFO size was not associated with the risk of recurrent stroke or transient ischemic attack.