Ilias Ι. Siempos

6.6k total citations · 1 hit paper
94 papers, 3.7k citations indexed

About

Ilias Ι. Siempos is a scholar working on Epidemiology, Pulmonary and Respiratory Medicine and Critical Care and Intensive Care Medicine. According to data from OpenAlex, Ilias Ι. Siempos has authored 94 papers receiving a total of 3.7k indexed citations (citations by other indexed papers that have themselves been cited), including 48 papers in Epidemiology, 45 papers in Pulmonary and Respiratory Medicine and 41 papers in Critical Care and Intensive Care Medicine. Recurrent topics in Ilias Ι. Siempos's work include Respiratory Support and Mechanisms (34 papers), Sepsis Diagnosis and Treatment (24 papers) and Nosocomial Infections in ICU (20 papers). Ilias Ι. Siempos is often cited by papers focused on Respiratory Support and Mechanisms (34 papers), Sepsis Diagnosis and Treatment (24 papers) and Nosocomial Infections in ICU (20 papers). Ilias Ι. Siempos collaborates with scholars based in Greece, United States and South Korea. Ilias Ι. Siempos's co-authors include Matthew E. Falagas, Konstantinos Z. Vardakas, Petros Kopterides, Theodora K. Ntaidou, Augustine M.K. Choi, Eleni Papoutsi, Vassilis G. Giannakoulis, Apostolos Armaganidis, Iraklis Tsangaris and Edward J. Schenck and has published in prestigious journals such as Nature Communications, PLoS ONE and Nature Cell Biology.

In The Last Decade

Ilias Ι. Siempos

90 papers receiving 3.6k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Effect of timing of intubation on clinical outcomes of critically ill patients with COVID-19: a systematic review and meta-analysis of non-randomized cohort studies

2021 134 citations Eleni Papoutsi, Vassilis G. Giannakoulis et al. Critical Care profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Ilias Ι. Siempos Greece	38	1.4k	1.3k	1.0k	697	464	94	3.7k
Leonardo Lorente Spain	38	1.2k 0.8×	1.7k 1.3×	1.5k 1.4×	302 0.4×	535 1.2×	226	4.7k
C. Brun‐Buisson France	25	1.0k 0.7×	1.7k 1.3×	964 0.9×	583 0.8×	504 1.1×	61	3.7k
Nobuaki Shime Japan	29	975 0.7×	778 0.6×	625 0.6×	289 0.4×	691 1.5×	233	2.9k
Pieter Depuydt Belgium	35	1.1k 0.8×	1.8k 1.3×	1.3k 1.3×	793 1.1×	337 0.7×	100	4.0k
Haibo Qiu China	37	2.1k 1.5×	1.0k 0.8×	1.1k 1.1×	987 1.4×	718 1.5×	231	5.4k
Xavier Wittebole Belgium	37	842 0.6×	1.8k 1.4×	768 0.7×	334 0.5×	596 1.3×	102	4.5k
Georges Offenstadt France	29	900 0.6×	1.2k 0.9×	911 0.9×	343 0.5×	840 1.8×	133	3.4k
Carole Schwebel France	38	1.0k 0.7×	1.8k 1.4×	1.4k 1.3×	607 0.9×	572 1.2×	124	4.5k
David S. Y. Ong Netherlands	27	557 0.4×	1.4k 1.0×	879 0.9×	564 0.8×	219 0.5×	87	3.0k
Éric Maury France	31	885 0.6×	1.4k 1.1×	1.6k 1.6×	409 0.6×	1.3k 2.8×	160	4.3k

Countries citing papers authored by Ilias Ι. Siempos

Since Specialization

Citations

This map shows the geographic impact of Ilias Ι. Siempos's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ilias Ι. Siempos with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ilias Ι. Siempos more than expected).

Fields of papers citing papers by Ilias Ι. Siempos

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ilias Ι. Siempos. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ilias Ι. Siempos. The network helps show where Ilias Ι. Siempos may publish in the future.

Co-authorship network of co-authors of Ilias Ι. Siempos

This figure shows the co-authorship network connecting the top 25 collaborators of Ilias Ι. Siempos. A scholar is included among the top collaborators of Ilias Ι. Siempos based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ilias Ι. Siempos. Ilias Ι. Siempos is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Ntaidou, Theodora K., Vassilis G. Giannakoulis, Eleni Papoutsi, et al.. (2025). FRAIL PARTICIPANTS IN RANDOMIZED CONTROLLED TRIALS OF ACUTE RESPIRATORY DISTRESS SYNDROME. Shock. 63(3). 435–440.

Palaiodimos, Leonidas, et al.. (2025). Assessment of the Association Between Lung POCUS Findings During Preoperative Assessment and Cardiopulmonary Outcomes in Patients Undergoing Major Abdominal Surgery: A Pilot Study Protocol. PubMed. 10(2). 46–52.

Papoutsi, Eleni, Vasiliki Tsolaki, Konstantinos Pontikis, et al.. (2024). Association Between Baseline Driving Pressure and Mortality in Very Old Patients with Acute Respiratory Distress Syndrome. American Journal of Respiratory and Critical Care Medicine. 210(11). 1329–1337. 7 indexed citations

Keskinidou, Chrysi, Alice G. Vassiliou, Eleni Papoutsi, et al.. (2024). Dysregulated Coagulation and Fibrinolysis Are Present in Patients Admitted to the Emergency Department with Acute Hypoxemic Respiratory Failure: A Prospective Study. Biomedicines. 12(5). 1081–1081. 1 indexed citations

Papoutsi, Eleni, Maria Bolaki, Γεώργιος Παπαθανάκος, et al.. (2024). A combination of mild-moderate hypoxemia and low compliance is highly prevalent in persistent ARDS: a retrospective study. Respiratory Research. 25(1). 1–1. 1 indexed citations

Giannakoulis, Vassilis G., et al.. (2023). Postoperative acute respiratory distress syndrome in randomized controlled trials. Surgery. 174(4). 1050–1055. 5 indexed citations

Kokkoris, Stelios, Aikaterini Gkoufa, Eleni Maneta, et al.. (2022). Older adults with severe coronavirus disease 2019 admitted to intensive care unit: prevalence, characteristics and risk factors for mortality. Minerva Anestesiologica. 88(10). 803–814. 8 indexed citations

Mentzelopoulos, Spyros D., Paraskevi Κatsaounou, Ilias Ι. Siempos, et al.. (2021). Can Coagulation System Disorders and Cytokine and Inflammatory Marker Levels Predict the Temporary Clinical Deterioration or Improvement of Septic Patients on ICU Admission?. Journal of Clinical Medicine. 10(8). 1548–1548. 1 indexed citations

Routsi, Christina, Stelios Kokkoris, Ilias Ι. Siempos, et al.. (2021). Fewer Intubations but Higher Mortality Among Intubated Coronavirus Disease 2019 Patients During the Second Than the First Wave. Critical Care Explorations. 3(10). e531–e531. 5 indexed citations

10.

Papoutsi, Eleni, Vassilis G. Giannakoulis, Eleni Xourgia, et al.. (2021). Effect of timing of intubation on clinical outcomes of critically ill patients with COVID-19: a systematic review and meta-analysis of non-randomized cohort studies. Critical Care. 25(1). 121–121. 134 indexed citations breakdown →

11.

Tsolaki, Vasiliki, Ilias Ι. Siempos, Eleni Magira, et al.. (2020). PEEP levels in COVID-19 pneumonia. Critical Care. 24(1). 303–303. 34 indexed citations

12.

Lee, Seonmin, Kiichi Nakahira, Jesmond Dalli, et al.. (2017). NLRP3 Inflammasome Deficiency Protects Against Microbial Sepsis Via Increased Lipoxin B4 Synthesis. American Journal of Respiratory and Critical Care Medicine. 196(6). 713–726. 131 indexed citations

13.

Siempos, Ilias Ι., Hilaire C. Lam, Yan Ding, et al.. (2014). Cecal Ligation and Puncture-induced Sepsis as a Model To Study Autophagy in Mice. Journal of Visualized Experiments. e51066–e51066. 47 indexed citations

14.

Agrafiotis, Michalis, Ilias Ι. Siempos, & Matthew E. Falagas. (2010). Frequency, prevention, outcome and treatment of ventilator-associated tracheobronchitis: Systematic review and meta-analysis. Respiratory Medicine. 104(3). 325–336. 53 indexed citations

15.

Falagas, Matthew E., et al.. (2010). Patients included in randomised controlled trials do not represent those seen in clinical practice: focus on antimicrobial agents. International Journal of Antimicrobial Agents. 36(1). 1–13. 29 indexed citations

16.

Siempos, Ilias Ι., Petros Kopterides, Iraklis Tsangaris, Ioanna Dimopoulou, & A Armaganidis. (2009). Impact of catheter-related bloodstream infections on the mortality of critically ill patients: A meta-analysis*. Critical Care Medicine. 37(7). 2283–2289. 99 indexed citations

17.

Athanassa, Zoe, Ilias Ι. Siempos, & Matthew E. Falagas. (2008). Impact of methicillin resistance on mortality inStaphylococcus aureusVAP: a systematic review. European Respiratory Journal. 31(3). 625–632. 55 indexed citations

18.

Vardakas, Konstantinos Z., Ilias Ι. Siempos, Alexandros Grammatikos, et al.. (2008). Respiratory fluoroquinolones for the treatment of community-acquired pneumonia: a meta-analysis of randomized controlled trials. Canadian Medical Association Journal. 179(12). 1269–1277. 69 indexed citations

19.

Falagas, Matthew E., Ilias Ι. Siempos, & Konstantinos Z. Vardakas. (2007). Linezolid versus glycopeptide or β-lactam for treatment of Gram-positive bacterial infections: meta-analysis of randomised controlled trials. The Lancet Infectious Diseases. 8(1). 53–66. 129 indexed citations

20.

Falagas, Matthew E., E. A. Karveli, Ilias Ι. Siempos, & Konstantinos Z. Vardakas. (2007). Acinetobacterinfections: a growing threat for critically ill patients. Epidemiology and Infection. 136(8). 1009–1019. 73 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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