F.S. Machado

8.0k total citations · 1 hit paper
34 papers, 630 citations indexed

About

F.S. Machado is a scholar working on Surgery, Rheumatology and Epidemiology. According to data from OpenAlex, F.S. Machado has authored 34 papers receiving a total of 630 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Surgery, 11 papers in Rheumatology and 9 papers in Epidemiology. Recurrent topics in F.S. Machado's work include Rheumatoid Arthritis Research and Therapies (9 papers), Sepsis Diagnosis and Treatment (7 papers) and Orthopedic Surgery and Rehabilitation (7 papers). F.S. Machado is often cited by papers focused on Rheumatoid Arthritis Research and Therapies (9 papers), Sepsis Diagnosis and Treatment (7 papers) and Orthopedic Surgery and Rehabilitation (7 papers). F.S. Machado collaborates with scholars based in Brazil, United States and France. F.S. Machado's co-authors include Laurent Papazian, Élie Azoulay, Sangeeta Mehta, Margaret S. Herridge, Arthur Kwizera, Marc Moss, Rita Nely Vilar Furtado, Jamil Natour, Jacob Szejnfeld and Vera Lúcia Szejnfeld and has published in prestigious journals such as New England Journal of Medicine, JAMA and SHILAP Revista de lepidopterología.

In The Last Decade

F.S. Machado

28 papers receiving 609 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.

COVID-19: a heavy toll on health-care workers

2021 234 citations Sangeeta Mehta, F.S. Machado et al. The Lancet Respiratory Medicine profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
F.S. Machado Brazil	11	148	142	130	128	101	34	630
Nicolas Drewniak France	12	110 0.7×	42 0.3×	183 1.4×	115 0.9×	130 1.3×	17	782
Steven L. Shapiro United States	12	177 1.2×	40 0.3×	213 1.6×	98 0.8×	106 1.0×	23	899
Sarath Lekamwasam Sri Lanka	19	203 1.4×	40 0.3×	104 0.8×	111 0.9×	390 3.9×	113	1.1k
Miho Ishimaru Japan	15	204 1.4×	30 0.2×	124 1.0×	73 0.6×	34 0.3×	69	719
Leonardo Méndez-Boo Spain	14	122 0.8×	42 0.3×	182 1.4×	125 1.0×	35 0.3×	34	658
Bernard Burnand Switzerland	6	185 1.3×	28 0.2×	106 0.8×	80 0.6×	12 0.1×	7	723
Shawn Dowling Canada	10	92 0.6×	21 0.1×	70 0.5×	254 2.0×	53 0.5×	41	606
Sofia Correia Portugal	17	85 0.6×	58 0.4×	152 1.2×	97 0.8×	9 0.1×	55	743
Jon Helgeland Norway	15	207 1.4×	35 0.2×	59 0.5×	176 1.4×	22 0.2×	54	722
Henry Kilham Australia	18	141 1.0×	59 0.4×	186 1.4×	48 0.4×	10 0.1×	49	916

Countries citing papers authored by F.S. Machado

Since Specialization

Citations

This map shows the geographic impact of F.S. Machado'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 F.S. Machado with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites F.S. Machado more than expected).

Fields of papers citing papers by F.S. Machado

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by F.S. Machado. 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 F.S. Machado. The network helps show where F.S. Machado may publish in the future.

Co-authorship network of co-authors of F.S. Machado

This figure shows the co-authorship network connecting the top 25 collaborators of F.S. Machado. A scholar is included among the top collaborators of F.S. Machado 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 F.S. Machado. F.S. Machado 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

Machado, F.S. & Matthew W. Semler. (2025). Capillary Refill Time in Sepsis—Searching for the Holy Grail. JAMA. 334(22). 1983–1983.

Ramos, Fernando José da Silva, et al.. (2024). Prevalence and risk factors of Burnout syndrome among intensive care unit members during the second wave of COVID-19: a single-center study. Einstein (São Paulo). 22. eAO0271–eAO0271. 1 indexed citations

Pinheiro, Bruno Valle, et al.. (2023). Predictors of prolonged ventilator weaning and mortality in critically ill patients with COVID-19. Jornal Brasileiro de Pneumologia. 49(4). e20230131–e20230131. 4 indexed citations

Natour, Jamil, et al.. (2022). Intra-articular triamcinolone hexacetonide injections in hands osteoarthritis ‒ A double-blinded randomized controlled trial with a one year follow-up. Clinics. 77. 100036–100036. 1 indexed citations

Natour, Jamil, et al.. (2022). Higher rates of ultrasound synovial hypertrophy, bone erosion and power doppler signal in asymptomatic Brazilian elderly versus young adults: a cross-sectional study. Rheumatology International. 43(5). 941–951. 1 indexed citations

Zampieri, Fernando G., Lucas Petri Damiani, Rodrigo Biondi, et al.. (2022). Efeitos da solução balanceada em desfechos de curto prazo em pacientes com traumatismo craniencefálico: uma análise secundária do ensaio clínico randomizado BaSICS. Revista Brasileira de Terapia Intensiva. 34(4). 410–417. 3 indexed citations

Hammond, Naomi, Bharath Kumar Tirupakuzhi Vijayaraghavan, Yaseen M. Arabi, et al.. (2021). Clinician preferences for prescription of corticosteroids in patients with septic shock: an international survey. Critical Care and Resuscitation. 23(2). 234–238. 2 indexed citations

Mehta, Sangeeta, F.S. Machado, Arthur Kwizera, et al.. (2021). COVID-19: a heavy toll on health-care workers. The Lancet Respiratory Medicine. 9(3). 226–228. 234 indexed citations breakdown →

Machado, F.S., et al.. (2020). Influência dos diferentes assentos no alinhamento postural: rede adaptada para paralisia cerebral. SHILAP Revista de lepidopterología. 27(2). 161–167.

10.

Machado, F.S., et al.. (2017). Articular Ultrasound in Asymptomatic Volunteers: Identification of the Worst Measures of Synovial Hypertrophy, Synovial Blood Flow and Joint Damage Among Small-, Medium- and Large-Sized Joints. Ultrasound in Medicine & Biology. 43(6). 1141–1152. 6 indexed citations

11.

Natour, Jamil, et al.. (2015). Effectiveness of Triamcinolone Hexacetonide Intraarticular Injection in Interphalangeal Joints: A 12-week Randomized Controlled Trial in Patients with Hand Osteoarthritis. The Journal of Rheumatology. 42(10). 1869–1877. 34 indexed citations

12.

Machado, F.S., et al.. (2015). Sonographic Cutoff Values for Detection of Abnormalities in Small, Medium and Large Joints: A Comparative Study Between Patients with Rheumatoid Arthritis and Healthy Volunteers. Ultrasound in Medicine & Biology. 41(4). 989–998. 10 indexed citations

13.

Furtado, Rita Nely Vilar, et al.. (2014). Infiltrações intra‐articulares de triancinolona hexacetonida na artrite reumatóide: preditores de melhora a curto e longo prazo. Revista Brasileira de Reumatologia. 55(3). 216–222. 2 indexed citations

14.

Machado, F.S., et al.. (2014). Sonographic Assessment of Healthy Peripheral Joints. Journal of Ultrasound in Medicine. 33(12). 2087–2098. 11 indexed citations

15.

Machado, F.S., Reinaldo Salomão, Otelo Rigato, et al.. (2013). Late recognition and illness severity are determinants of early death in severe septic patients. Clinics. 68(5). 586–591. 19 indexed citations

16.

Natour, Jamil, et al.. (2013). Hand ultrasound: Comparative study between “no rhupus” lupus erythematosus and rheumatoid arthritis. Modern Rheumatology. 24(4). 599–605. 14 indexed citations

17.

Medina‐Pestana, José, et al.. (2013). Predictors of mortality in renal transplant recipients with severe sepsis and septic shock. Critical Care. 17(Suppl 4). P36–P36.

18.

Freitas, Flávio Geraldo Rezende, et al.. (2012). Predictive value of pulse pressure variation for fluid responsiveness in septic patients using lung-protective ventilation strategies. British Journal of Anaesthesia. 110(3). 402–408. 45 indexed citations

19.

Pinheiro, Marcelo M., et al.. (2011). Development and validation of a tool for identifying women with low bone mineral density and low-impact fractures: the São Paulo Osteoporosis Risk Index (SAPORI). Osteoporosis International. 23(4). 1371–1379. 10 indexed citations

20.

Pinheiro, Marcelo M., et al.. (2010). Fatores de risco para fratura por osteoporose e baixa densidade óssea em mulheres na pré e pós-menopausa. LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas). 1 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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