Nagarajan Ramakrishnan

2.1k total citations
56 papers, 757 citations indexed

About

Nagarajan Ramakrishnan is a scholar working on Epidemiology, Critical Care and Intensive Care Medicine and Physiology. According to data from OpenAlex, Nagarajan Ramakrishnan has authored 56 papers receiving a total of 757 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Epidemiology, 10 papers in Critical Care and Intensive Care Medicine and 10 papers in Physiology. Recurrent topics in Nagarajan Ramakrishnan's work include Sepsis Diagnosis and Treatment (10 papers), Intensive Care Unit Cognitive Disorders (7 papers) and Acute Kidney Injury Research (6 papers). Nagarajan Ramakrishnan is often cited by papers focused on Sepsis Diagnosis and Treatment (10 papers), Intensive Care Unit Cognitive Disorders (7 papers) and Acute Kidney Injury Research (6 papers). Nagarajan Ramakrishnan collaborates with scholars based in India, United States and Canada. Nagarajan Ramakrishnan's co-authors include Derek C. Angus, Walter T. Linde‐Zwirble, John A. Kellum, John P. Johnson, Martine Leblanc, Martin Griffin, Ray W. Fuller, Padma Ariga, Vinod Narayanan and Ramesh Venkataraman and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Scientific Reports.

In The Last Decade

Nagarajan Ramakrishnan

47 papers receiving 714 citations

Peers

Nagarajan Ramakrishnan
Martin Bruun Madsen Denmark
Anees Sindi Saudi Arabia
Jianguo Li China
Pablo Monedero Spain
Ignacio Ayestarán Spain
Thomas Kander Sweden
Gourang Patel United States
Miguel Moysés Neto Brazil
Tom Dormans Netherlands
Pablo Vidal Spain
Martin Bruun Madsen Denmark
Nagarajan Ramakrishnan
Citations per year, relative to Nagarajan Ramakrishnan Nagarajan Ramakrishnan (= 1×) peers Martin Bruun Madsen

Countries citing papers authored by Nagarajan Ramakrishnan

Since Specialization
Citations

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

Fields of papers citing papers by Nagarajan Ramakrishnan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Nagarajan Ramakrishnan. 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 Nagarajan Ramakrishnan. The network helps show where Nagarajan Ramakrishnan may publish in the future.

Co-authorship network of co-authors of Nagarajan Ramakrishnan

This figure shows the co-authorship network connecting the top 25 collaborators of Nagarajan Ramakrishnan. A scholar is included among the top collaborators of Nagarajan Ramakrishnan 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 Nagarajan Ramakrishnan. Nagarajan Ramakrishnan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Vijayaraghavan, Bharath Kumar Tirupakuzhi, Aasiyah Rashan, Nagarajan Ramakrishnan, et al.. (2025). Persistent Critical Illness Among Intensive Care Patients in India: A Registry-Embedded Cohort Study. Critical Care Medicine. 53(8). e1641–e1649.
2.
Venkataraman, Ramesh, et al.. (2025). Decision-making Preferences and Levels of Anxiety and Depression in Family Members of Patients Admitted to the ICU. Indian Journal of Critical Care Medicine. 29(2). 155–163.
3.
Tripathy, Swagata, Prashant Nasa, Nagarajan Ramakrishnan, Marcus J. Schultz, & James B. Peter. (2025). Green intensive care: reimplementing what LMICs have long practised. The Lancet Global Health. 13(7). e1166–e1167.
4.
Ramakrishnan, Nagarajan, et al.. (2024). Post-ICU Care: Why, What, When and How? ISCCM Position Statement. Indian Journal of Critical Care Medicine. 28(S2). S279–S287. 1 indexed citations
5.
Venkataraman, Ramesh, et al.. (2023). Epidemiology and Outcomes of HIN1 Pneumonia in ICU. Indian Journal of Critical Care Medicine. 27(7). 470–474. 2 indexed citations
6.
Ramakrishnan, Nagarajan, et al.. (2023). “Nurse—The Archer” Fighting Against the Hidden Enemy. Indian Journal of Critical Care Medicine. 27(4). 246–253. 1 indexed citations
7.
Vijayaraghavan, Bharath Kumar Tirupakuzhi, Aasiyah Rashan, Lakshmi Ranganathan, et al.. (2023). Prevalence of frailty and association with patient centered outcomes: A prospective registry-embedded cohort study from India. Journal of Critical Care. 80. 154509–154509. 8 indexed citations
8.
Gopalakrishnan, Ram, et al.. (2023). Xpert Carba-R Assay on Flagged Blood Culture Samples: Clinical Utility in Intensive Care Unit Patients with Bacteremia Caused by Enterobacteriaceae. Indian Journal of Critical Care Medicine. 27(9). 655–662. 2 indexed citations
9.
Vijayaraghavan, Bharath Kumar Tirupakuzhi, Nagarajan Ramakrishnan, Abi Beane, et al.. (2022). Barriers and facilitators to the conduct of critical care research in low and lower-middle income countries: A scoping review. PLoS ONE. 17(5). e0266836–e0266836. 20 indexed citations
10.
Kar, Sujoy Kumar, Rajesh Chawla, Sai Praveen Haranath, et al.. (2021). Multivariable mortality risk prediction using machine learning for COVID-19 patients at admission (AICOVID). Scientific Reports. 11(1). 12801–12801. 46 indexed citations
11.
Venkataraman, Ramesh, et al.. (2021). Nutrition Therapy in Patients Requiring Noninvasive Ventilation in the Intensive Care Unit: Feasibility, Tolerance, and Complications. Indian Journal of Respiratory Care. 10(3). 289–293.
12.
Kashyap, Rahul, Vikas Bansal, Harpreet Singh, et al.. (2020). Critical care practice in India: Results of the intensive care unit need assessment survey (ININ2018). World Journal of Critical Care Medicine. 9(2). 31–42. 5 indexed citations
13.
Ramasubramanian, V, et al.. (2018). Carbapenem-Resistant Enterobacteriaceae Screening: A Core Infection Control Measure for Critical Care Unit in India?. Indian Journal of Medical Microbiology. 36(4). 572–576. 9 indexed citations
14.
Viswanathan, Vijay, et al.. (2017). High Prevalence of Obstructive Sleep Apnea among People with Type 2 Diabetes Mellitus in a Tertiary Care Center.. PubMed. 65(11). 38–42. 8 indexed citations
15.
Ramakrishnan, Nagarajan, et al.. (2015). Feasibility, safety, and outcome of very early enteral nutrition in critically ill patients: Results of an observational study. Journal of Critical Care. 30(3). 473–475. 22 indexed citations
16.
Jayakumar, Devachandran, et al.. (2015). Ulcerative necrosis of the uvula following endotracheal intubation. Intensive Care Medicine. 41(9). 1713–1713. 2 indexed citations
17.
18.
Ramakrishnan, Nagarajan. (2013). Critical economics of life and death: Intense + Expensive care = Intensive care?. Indian Journal of Critical Care Medicine. 17(2). 67–68. 1 indexed citations
19.
Clermont, Gilles, Derek C. Angus, Kenneth G. Kalassian, et al.. (2003). Reassessing the value of short-term mortality in sepsis: Comparing conventional approaches to modeling. Critical Care Medicine. 31(11). 2627–2633. 16 indexed citations
20.

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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