Skip to content

Home Search Authors Pakistan News Saved

SciRah

SciRah does not host or store research papers. Results come live from free, official scholarly APIs, and every paper links back to its original source.

Data sources

OpenAlex
Semantic Scholar
Crossref
CORE
arXiv
PubMed

Privacy policy Terms of service

O. Ranzani · SciRah

Researcher profile · Semantic Scholar

O. Ranzani

Share profile

O. Ranzani — researcher profile on SciRah

h-index: 47
Works: 311
Citations: 7,925

Most-cited papers

Post-acute sequelae of COVID-19: understanding and addressing the burden of multisystem manifestations.
M. Parotto, M. Gyöngyösi, Kathryn Howe, S. Myatra +3 more
2023The Lancet Respiratory Medicine207 citations Open access
Semantic Scholar
Development and Validation of the Sequential Organ Failure Assessment (SOFA)-2 Score.
O. Ranzani, Mervyn Singer, J. Salluh, M. Shankar-Hari +74 more
2025Journal of the American Medical Association (JAMA)145 citations Open access
Semantic Scholar
Urban-rural differences in hypertension prevalence in low-income and middle-income countries, 1990–2020: A systematic review and meta-analysis
O. Ranzani, Anjani Kalra, C. Di Girolamo, A. Curto +4 more
2022PLoS Medicine93 citations Open access
Semantic Scholar
European Network for ICU-Related Respiratory Infections (ENIRRIs): a multinational, prospective, cohort study of nosocomial LRTI
I. Martín-Loeches, Luis F. Reyes, S. Nseir, O. Ranzani +45 more
2023Intensive Care Medicine72 citations Open access
Semantic Scholar
Rationale and Methodological Approach Underlying the Development of the Sequential Organ Failure Assessment (SOFA)-2 Score: A Consensus Statement.
Rui Moreno, Andrew Rhodes, O. Ranzani, J. Salluh +58 more
2025JAMA Network Open53 citations Open access
Semantic Scholar
Effect of Tele-ICU on Clinical Outcomes of Critically Ill Patients: The TELESCOPE Randomized Clinical Trial.
A. J. Pereira, D. Noritomi, M. C. dos Santos, T. D. Corrêa +13 more
2024Journal of the American Medical Association (JAMA)39 citations Open access
Semantic Scholar
European Society of Intensive Care Medicine Clinical Practice Guideline on fluid therapy in adult critically ill patients: Part 3—fluid removal at de-escalation phase
M. Ostermann, F. Alshamsi, Antonio Artigas Raventos, Maurizio Cecconi +15 more
2025Intensive Care Medicine35 citations Open access
Semantic Scholar
Effectiveness of an Inactivated Covid-19 Vaccine with Homologous and Heterologous Boosters against the Omicron (B.1.1.529) Variant
O. Ranzani, M. Hitchings, Rosana Leite de Melo, G. V. A. de França +13 more
2022medRxiv35 citations Open access
Semantic Scholar
Long-term exposure to air pollution and severe COVID-19 in Catalonia: a population-based cohort study
O. Ranzani, A. Alari, S. Olmos, C. Milà +15 more
2023Nature Communications34 citations Open access
Semantic Scholar
Peri-intubation adverse events and clinical outcomes in emergency department patients: the BARCO study
I. Maia, Bruno A. M. Pinheiro Besen, L. O. J. E. Silva, R. von Hellmann +75 more
2025Critical Care32 citations Open access
Semantic Scholar
Update on the Epimed Monitor Adult ICU Database: 15 years of its use in national registries, quality improvement initiatives and clinical research
Marcio Soares, L. Borges, Lourenço Bastos Leonardo dos Santos, F. Zampieri +8 more
2024Critical care science25 citations Open access
Semantic Scholar
Prevalence, risk factors, and impact of long COVID in a socially vulnerable community in Brazil: a prospective cohort study
Pedro Azambuja, L. Bastos, Amanda A. Batista-da-Silva, G. V. Ramos +10 more
2024The Lancet Regional Health - Americas24 citations Open access
Semantic Scholar
Effectiveness of the TAK-003 dengue vaccine in adolescents during the 2024 outbreak in São Paulo, Brazil: a test-negative, case-control study.
O. Ranzani, Felippe Lazar, Lisany Krug Mareto, Thiago Sanches Brumatti +11 more
2025Lancet. Infectious Diseases (Print)22 citations
Semantic Scholar
Diagnosis and management of autoimmune diseases in the ICU
Guillaume Dumas, Y. Arabi, Raquel Bartz, O. Ranzani +3 more
2023Intensive Care Medicine22 citations
Semantic Scholar
Closing the critical care knowledge gap: the importance of publications from low-income and middle-income countries
J. Salluh, B. Besen, Sebastián González-Dambrauskas, S. Ranjit +11 more
2024Critical care science19 citations Open access
Semantic Scholar
Vaccine coverage and effectiveness against laboratory-confirmed symptomatic and severe Covid-19 in indigenous people in Brazil: a cohort study
J. Pescarini, A. Cardoso, R. Santos, P. Scaff +9 more
2023BMC Public Health17 citations Open access
Semantic Scholar
Effect of walnut consumption on neuropsychological development in healthy adolescents: a multi-school randomised controlled trial.
Ariadna Pinar-Martí, F. Gignac, S. Fernández-Barrés, D. Romaguera +22 more
2023EClinicalMedicine15 citations Open access
Semantic Scholar
Mental health morbidity, self-harm, and suicide in ICU survivors and caregivers
S. Fernando, O. Ranzani, M. Herridge
2022Intensive Care Medicine15 citations Open access
Semantic Scholar
Association of noradrenaline dose with mortality in critically ill patients: a systematic review and dose-response meta-analysis
M. Reinikainen, L. Delamarre, A. Blaser, Steven M. Hollenberg +7 more
2025Critical Care14 citations Open access
Semantic Scholar
Long-term exposure to air pollution and lower respiratory infections in a large population-based adult cohort in Catalonia.
A. Alari, O. Ranzani, C. Milà, S. Olmos +5 more
2024Environment International14 citations Open access
Semantic Scholar
Identification and validation of robust hospital-acquired pneumonia subphenotypes associated with all-cause mortality: a multi-cohort derivation and validation
F. Martin, C. Poulain, J. Mulier, A. Motos +14 more
2025Intensive Care Medicine12 citations Open access
Semantic Scholar
The impact of large-scale release of Wolbachia mosquitoes on dengue incidence in Campo Grande, Brazil: an ecological study
Fabiani de Morais Batista, P. Carcamo, E. Nelson, Antonio Edson Brandão Da Silva +20 more
2025The Lancet Regional Health - Americas11 citations
Semantic Scholar
Ketamine, Etomidate, and Mortality in Emergency Department Intubations
I. Maia, S. R. Decker, L. O. J. E. Silva, R. von Hellmann +33 more
2025JAMA Network Open11 citations Open access
Semantic Scholar
D-PRISM: a global survey-based study to assess diagnostic and treatment approaches in pneumonia managed in intensive care
Luis Felipe Reyes, Cristian C. Serrano-Mayorga, Zhong-Heng Zhang, Isabela Tsuji +27 more
2024Critical Care10 citations Open access
Semantic Scholar
Effectiveness of the fourth dose of COVID-19 vaccines against severe COVID-19 among adults 40 years or older in Brazil: a population-based cohort study
Felippe Lazar, M. Hitchings, A. Amin, G. V. A. de França +10 more
2024The Lancet Regional Health - Americas10 citations Open access
Semantic Scholar
Variants of concern and clinical outcomes in critically ill COVID-19 patients
P. Kurtz, L. Bastos, O. Ranzani, M. Soares +4 more
2023Intensive Care Medicine10 citations Open access
Semantic Scholar
Nosocomial lower respiratory tract infections in patients with immunosuppression: a cohort study
Luis F. Reyes, Natalia Sanabria-Herrera, S. Nseir, O. Ranzani +34 more
2025Annals of Intensive Care8 citations Open access
Semantic Scholar
Brazilian Research in Intensive Care Network (BRICNet): shaping the landscape of critical care research in Brazil and beyond
J. Ferreira, A. Pereira, A. Cavalcanti, A. Nassar +37 more
2025Critical care science8 citations Open access
Semantic Scholar
Telemedicine in critical care
Claudia D. Spies, O. Ranzani
2025Intensive Care Medicine8 citations Open access
Semantic Scholar
Prenatal exposure to ambient air pollution and subsequent risk of lower respiratory tract infections in childhood and adolescence: A systematic review.
Maxine Pepper, P. Rebouças, I. Falcão, Nuria Sanchez Clemente +10 more
2024International Journal of Hygiene and Environmental Health8 citations Open access
Semantic Scholar
Clinical characteristics, complications and outcomes of critically ill patients with Dengue in Brazil, 2012-2024: A nationwide, multicenter cohort study
I. T. Peres, O. Ranzani, L. Bastos, S. Hamacher +3 more
2025International Journal of Infectious Diseases7 citations Open access
Semantic Scholar
Evidence based QUality Improvement for Prescribing Stewardship in ICU (EQUIPS-ICU): protocol for type III hybrid implementation-effectiveness study
D. Wagstaff, J. Amuasi, Sumaiya Arfin, D. Aryal +28 more
2025Implementation Science7 citations Open access
Semantic Scholar
Effectiveness of a multicomponent intervention to face the COVID-19 pandemic in Rio de Janeiro’s favelas: difference-in-differences analysis
Amanda de Araujo Batista-da-Silva, Camila Moraes, Helena Rodrigues Bozza, Leonardo Dos Santos Lourenço Bastos +3 more
2023BMJ Global Health6 citations Open access
Semantic Scholar
Using the Observational Medical Outcomes Partnership Common Data Model for a multi-registry intensive care unit benchmarking federated analysis: lessons learned
A. Rashan, Daniel P. Püttmann, N. D. de Keizer, D. Dongelmans +7 more
2025JAMIA Open5 citations Open access
Semantic Scholar
Factors Associated with Mortality in Nosocomial Lower Respiratory Tract Infections: An ENIRRI Analysis
L. Reyes, A. Torres, Juan Olivella-Gómez, Elsa D. Ibáñez-Prada +35 more
2025Antibiotics5 citations Open access
Semantic Scholar
Antibody responses to common viruses according to COVID‐19 severity and postacute sequelae of COVID‐19
Marianna Karachaliou, O. Ranzani, Ana Espinosa, Susana Iraola-Guzmán +11 more
2024Journal of Medical Virology5 citations Open access
Semantic Scholar
Fludrocortisone with hydrocortisone in sepsis: new evidence in an ongoing debate
O. Ranzani, D. Annane, Mervyn Singer
2024Intensive Care Medicine5 citations Open access
Semantic Scholar
Long-term risk of death after tuberculosis diagnosis and treatment
T. Cerqueira-Silva, V. Boaventura, E. Paixão, Mauro N. Sanchez +4 more
2026Nature Medicine4 citations Open access
Semantic Scholar
Short-term exposure to air pollution and hospital admission after COVID-19 in Catalonia: the COVAIR-CAT study.
A. Alari, O. Ranzani, S. Olmos, C. Milà +8 more
2024International Journal of Epidemiology4 citations Open access
Semantic Scholar
Effectiveness of COVID-19 vaccines against severe COVID-19 among patients with cancer in Catalonia, Spain
Felippe Lazar, N. Mercadé-Besora, B. Raventós, L. Pérez-Crespo +3 more
2024Nature Communications4 citations Open access
Semantic Scholar
Ambient temperature and dengue hospitalization in Brazil: A 10-year period case time series analysis
R. Lopes, X. Basagaña, L. Bastos, F. Bozza +1 more
2024Environmental Epidemiology4 citations Open access
Semantic Scholar
What we talk about when we talk about COVID-19 vaccination campaign impact: a narrative review
H. Hastenreiter, I. T. Peres, Lucas Maddalena, F. Baião +4 more
2023Frontiers in Public Health4 citations Open access
Semantic Scholar
Allostatic overload as the pathophysiological basis for integrating palliative care in the Intensive Care Unit
D. N. Forte, João Gabriel Rosa Ramos, O. Ranzani
2025Intensive Care Medicine3 citations
Semantic Scholar
Common pitfalls in critical care research
B. Besen, A. P. Nassar, J. Ferreira, O. Ranzani
2025Critical care science3 citations
Semantic Scholar
Critical care research in low- and middle-income countries: a narrative review
J. Salluh, F. Amado, Luigi Pisani, Amanda Quintairos +16 more
2025Thorax3 citations
Semantic Scholar
Effects of ambient temperature on under-five mortality: a nationwide space-time-stratified case-crossover study in Brazil.
I. Silveira, P. Rebouças, Julia M. Pescarini, T. Cortes +7 more
2025Environmental Research3 citations Open access
Semantic Scholar
Primary SARS-CoV-2 exposure by vaccination or infection shapes immune responses to omicron variants among a Spanish cohort
O. Ranzani, Carla Martín Pérez, R. Rubio, Anna Ramírez-Morros +15 more
2025Nature Communications3 citations
Semantic Scholar
Who is more vulnerable to effects of long-term exposure to air pollution on COVID-19 hospitalisation?
O. Ranzani, A. Alari, S. Olmos, C. Milà +8 more
2024Environment International3 citations Open access
Semantic Scholar
Impact of the first year of COVID-19 vaccination strategy in Brazil: an ecological study
Soraida Aguilar, L. Bastos, P. Maçaira, F. Baião +5 more
2024BMJ Open3 citations Open access
Semantic Scholar
The association between pre-pandemic ICU performance and mortality variation in COVID-19: A multicenter cohort study of 35,619 critically ill patients.
L. Bastos, S. Hamacher, Pedro Kurtz, O. Ranzani +4 more
2023Chest3 citations
Semantic Scholar

Frequent co-authors

Invite them to SciRah by sharing their profile.

X. Basagaña×7
Invite
X. Basagaña — researcher profile on SciRah
L. Bastos×7
Invite
L. Bastos — researcher profile on SciRah
J. Salluh×5
Invite
J. Salluh — researcher profile on SciRah
C. Tonne×5
Invite
C. Tonne — researcher profile on SciRah

T. Duarte-Salles

×5

Invite

T. Duarte-Salles — researcher profile on SciRah

Invite

Pedro Kurtz — researcher profile on SciRah

M. Shankar-Hari×4

Invite

M. Shankar-Hari — researcher profile on SciRah

Invite

A. Serpa — researcher profile on SciRah

Invite

E. Rezende — researcher profile on SciRah

Cornelius Sendagire×4

Invite

Cornelius Sendagire — researcher profile on SciRah

I. Martín-Loeches×4

Invite

I. Martín-Loeches — researcher profile on SciRah

Cristian C. Serrano-Mayorga×4

Invite

Cristian C. Serrano-Mayorga — researcher profile on SciRah