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

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

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20 of 20 papers shown

#	Work	Indexed citations
1	Persistent Critical Illness Among Intensive Care Patients in India: A Registry-Embedded Cohort Study 2025 ·Critical Care Medicine ·Bharath Kumar Tirupakuzhi Vijayaraghavan, Aasiyah Rashan, Nagarajan Ramakrishnan, Rashan Haniffa, Abigail Beane, (unknown), Nazir Lone, Nicolette F. de Keizer, (unknown)	0
2	Decision-making Preferences and Levels of Anxiety and Depression in Family Members of Patients Admitted to the ICU 2025 ·Indian Journal of Critical Care Medicine ·Ramesh Venkataraman, Nagarajan Ramakrishnan, (unknown), (unknown), (unknown)	0
3	Green intensive care: reimplementing what LMICs have long practised 2025 ·The Lancet Global Health ·Swagata Tripathy, Prashant Nasa, Nagarajan Ramakrishnan, Marcus J. Schultz, James B. Peter	0
4	Post-ICU Care: Why, What, When and How? ISCCM Position Statement 2024 ·Indian Journal of Critical Care Medicine ·(unknown), Nagarajan Ramakrishnan, (unknown), Swagata Tripathy, Babu K. Abraham, (unknown), (unknown), Bharath Kumar Tirupakuzhi Vijayaraghavan	1
5	Epidemiology and Outcomes of HIN1 Pneumonia in ICU 2023 ·Indian Journal of Critical Care Medicine ·Ramesh Venkataraman, Nagarajan Ramakrishnan, (unknown), (unknown), (unknown), D. Vidyasagar	2
6	“Nurse—The Archer” Fighting Against the Hidden Enemy 2023 ·Indian Journal of Critical Care Medicine ·Nagarajan Ramakrishnan, (unknown), (unknown), (unknown), (unknown), (unknown), V Ramasubramanian	1
7	Prevalence of frailty and association with patient centered outcomes: A prospective registry-embedded cohort study from India 2023 ·Journal of Critical Care ·Bharath Kumar Tirupakuzhi Vijayaraghavan, Aasiyah Rashan, Lakshmi Ranganathan, Ramesh Venkataraman, Swagata Tripathy, Devachandran Jayakumar, (unknown), Zubair Umer Mohamed, (unknown), Nagarajan Ramakrishnan, Rashan Haniffa, Abi Beane, Neill K. J. Adhikari, Nicolette F. de Keizer, Nazir Lone	8
8	Xpert Carba-R Assay on Flagged Blood Culture Samples: Clinical Utility in Intensive Care Unit Patients with Bacteremia Caused by Enterobacteriaceae 2023 ·Indian Journal of Critical Care Medicine ·Ram Gopalakrishnan, V Ramasubramanian, Nagarajan Ramakrishnan, Nandini Sethuraman, Surendran Rajendran, (unknown), (unknown), (unknown), (unknown)	2
9	Barriers and facilitators to the conduct of critical care research in low and lower-middle income countries: A scoping review 2022 ·PLoS ONE ·Bharath Kumar Tirupakuzhi Vijayaraghavan, (unknown), Nagarajan Ramakrishnan, Abi Beane, Rashan Haniffa, Nazir Lone, Nicolette F. de Keizer, Neill K. J. Adhikari	20
10	Multivariable mortality risk prediction using machine learning for COVID-19 patients at admission (AICOVID) 2021 ·Scientific Reports ·Sujoy Kumar Kar, Rajesh Chawla, Sai Praveen Haranath, (unknown), Nagarajan Ramakrishnan, Raju Vaishya, Anupam Sibal, (unknown)	46
11	Nutrition Therapy in Patients Requiring Noninvasive Ventilation in the Intensive Care Unit: Feasibility, Tolerance, and Complications 2021 ·Indian Journal of Respiratory Care ·Ramesh Venkataraman, Nagarajan Ramakrishnan, Gaurav Sharma, Babu K. Abraham, Senthilkumar Rajagopal, (unknown)	0
12	Critical care practice in India: Results of the intensive care unit need assessment survey (ININ2018) 2020 ·World Journal of Critical Care Medicine ·Rahul Kashyap, (unknown), (unknown), (unknown), (unknown), Vikas Bansal, Harpreet Singh, (unknown), Nagarajan Ramakrishnan, (unknown), Divya Sharma, (unknown), Mradul Kumar Daga, Mohan Gurjar, Yash Javeri, Salim Surani, Joseph Varón	5
13	Carbapenem-Resistant Enterobacteriaceae Screening: A Core Infection Control Measure for Critical Care Unit in India? 2018 ·Indian Journal of Medical Microbiology ·(unknown), V Ramasubramanian, (unknown), (unknown), Ramesh Venkataraman, M. A. Thirunarayan, (unknown), Nagarajan Ramakrishnan	9
14	High Prevalence of Obstructive Sleep Apnea among People with Type 2 Diabetes Mellitus in a Tertiary Care Center. 2017 ·PubMed ·Vijay Viswanathan, (unknown), Nagarajan Ramakrishnan	8
15	Feasibility, safety, and outcome of very early enteral nutrition in critically ill patients: Results of an observational study 2015 ·Journal of Critical Care ·(unknown), (unknown), Nagarajan Ramakrishnan, Ramesh Venkataraman	22
16	Ulcerative necrosis of the uvula following endotracheal intubation 2015 ·Intensive Care Medicine ·Devachandran Jayakumar, (unknown), Nagarajan Ramakrishnan	2
17	Epidemiology, outcomes and validation of RIFLE and AKIN criteria in acute kidney injury (AKI) in critically ill patients: Indian perspective 2014 ·Renal Failure ·(unknown), (unknown), (unknown), Rajeev A Annigeri, Nagarajan Ramakrishnan, Ramesh Venkataraman	14
18	Critical economics of life and death: Intense + Expensive care = Intensive care? 2013 ·Indian Journal of Critical Care Medicine ·Nagarajan Ramakrishnan	1
19	Reassessing the value of short-term mortality in sepsis: Comparing conventional approaches to modeling 2003 ·Critical Care Medicine ·Gilles Clermont, Derek C. Angus, Kenneth G. Kalassian, Walter T. Linde‐Zwirble, Nagarajan Ramakrishnan, Peter K. Linden, Michael R. Pinsky	16
20	Carbon-13 nuclear magnetic resonance spectroscopy of naturally occurring substances. 54. Structure analysis of the nucleoside disaccharide antibiotic anthelmycin by carbon-13 nuclear magnetic resonance spectroscopy. A structural revision of hikizimycin and its identity with anthelmycin 1977 ·The Journal of Organic Chemistry ·Marc Vuilhorgne, (unknown), Bhupesh C. Das, Jonathan W. Paschal, Nagarajan Ramakrishnan, Edward W. Hagaman, Ernest Wenkert	35

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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