Overview
Background
Dr Ramanan is a Specialist in Intensive Care Medicine. His main research interests are in critical care epidemiology, long-term outcomes of critical illness, methodological aspects of clinical research and database/registry research.
Availability
- Dr Mahesh Ramanan is:
- Available for supervision
Works
Search Professor Mahesh Ramanan’s works on UQ eSpace
2026
Journal Article
Feeding-associated hypophosphatemia in critically ill patients. A multicentre, observational study
Chaba, Anis, Doola, Ra'eesa, Laupland, Kevin B., Shekar, Kiran, Kumar, Aashish, Tabah, Alexis, Ramanan, Mahesh, Edwards, Felicity, Bellomo, Rinaldo and White, Kyle C. (2026). Feeding-associated hypophosphatemia in critically ill patients. A multicentre, observational study. Journal of Critical Care, 92 155400, 155400. doi: 10.1016/j.jcrc.2025.155400
2025
Journal Article
The influence of consent models on recruitment rates in randomised trials in critical care: A systematic review
Ramanan, Mahesh, Kumar, Aashish, Billot, Laurent, Myburgh, John and Venkatesh, Balasubramanian (2025). The influence of consent models on recruitment rates in randomised trials in critical care: A systematic review. Critical Care and Resuscitation, 27 (4) 100119, 100119-4. doi: 10.1016/j.ccrj.2025.100119
2025
Journal Article
A comparison of sodium concentration measured in laboratory autoanalyser versus point-of-care blood gas machine: A retrospective, multicentre, analytical study in a large adult intensive care unit population
Hunter, Keegan, Anstey, Chris, Nesbitt, Alexander, Venkatesh, Karthik, Parmar, Dinesh, Corley, Amanda, Daniels, Marissa, Grewal, Jatinder, Laupland, Kevin B., Ramanan, Mahesh, Tabah, Alexis, McCullough, James, Kumar, Aashish, Attokaran, Antony G., Luke, Stephen, Garrett, Peter, Whebell, Stephen, Blank, Sebastiaan, McIlroy, Philippa and White, Kyle C. (2025). A comparison of sodium concentration measured in laboratory autoanalyser versus point-of-care blood gas machine: A retrospective, multicentre, analytical study in a large adult intensive care unit population. Critical Care and Resuscitation, 27 (4) 100149, 100149. doi: 10.1016/j.ccrj.2025.100149
2025
Journal Article
The prevalence and use of arterial catheters in adult intensive care units: An Australian and New Zealand point prevalence study
Keogh, Samantha, Edwards, Felicity, Levido, Annabel, Alexandrou, Evan, Corley, Amanda, Coyer, Fiona, Dhanani, Jayesh, Gibbons, Kristen, Hammond, Naomi E., Knowles, Serena, Laupland, Kevin B., Ramanan, Mahesh, Rickard, Claire M. and Udy, Andrew (2025). The prevalence and use of arterial catheters in adult intensive care units: An Australian and New Zealand point prevalence study. Australian Critical Care, 38 (6) 101312, 1-8. doi: 10.1016/j.aucc.2025.101312
2025
Journal Article
Response to letter to the editor by Chen et al. regarding early psychiatric intervention assessment and intervention service pilot study
Flaws, Dylan, Baker, Stuart, Barnett, Adrian, Jacobs, Kylie, Metcalf, Olivia, Patterson, Sue, Pollock, Hamish, Proctor, Emma, Ramanan, Mahesh, Tabah, Alexis and Varker, Tracey (2025). Response to letter to the editor by Chen et al. regarding early psychiatric intervention assessment and intervention service pilot study. Australian Critical Care, 38 (6) 101452, 101452. doi: 10.1016/j.aucc.2025.101452
2025
Journal Article
Findings of a pilot randomised controlled trial of an early psychiatric assessment, referral, and intervention study for intensive care patients
Flaws, Dylan, Baker, Stuart, Barnett, Adrian, Jacobs, Kylie, Metcalf, Olivia, Patterson, Sue, Pollock, Hamish, Proctor, Emma, Ramanan, Mahesh, Tabah, Alexis and Varker, Tracey (2025). Findings of a pilot randomised controlled trial of an early psychiatric assessment, referral, and intervention study for intensive care patients. Australian Critical Care, 38 (6) 101302, 101302. doi: 10.1016/j.aucc.2025.101302
2025
Journal Article
The Association Between Frailty, Pao2/Fio2 Ratio, and Hospital Mortality: A Retrospective Registry-Based Cohort Study
Subramaniam, Ashwin, Ling, Ryan Ruiyang, Burrell, Aidan, Moran, Benjamin, Ramanan, Mahesh, Ramanathan, Kollengode, Reddy, Mallikarjuna Ponnapa, Pilcher, David and Shekar, Kiran (2025). The Association Between Frailty, Pao2/Fio2 Ratio, and Hospital Mortality: A Retrospective Registry-Based Cohort Study. Critical Care Medicine, 53 (12), 1-11. doi: 10.1097/ccm.0000000000006917
2025
Journal Article
A contemporary narrative review of sodium homeostasis mechanisms, dysnatraemia, and the clinical relevance in adult critical illness
Raman, Vignesh, Ramanan, Mahesh, Edwards, Felicity and Laupland, Kevin B. (2025). A contemporary narrative review of sodium homeostasis mechanisms, dysnatraemia, and the clinical relevance in adult critical illness. Journal of Clinical Medicine, 14 (19) 6914, 1-14. doi: 10.3390/jcm14196914
2025
Journal Article
Epidemiology and outcomes of patients with adult congenital heart disease in Queensland intensive care units: a multicentre retrospective observational study
Ashby, Alexander C., Anstey, Christopher, Siriwardena, Maithri, Mullany, Dan, Raman, Sainath, Kumar, Aashish, Pryke, Christopher, Laupland, Kevin B., Tabah, Alexis, Shekar, Kiran, Blank, Sebastiaan, Whebell, Stephen, Luke, Stephen, Garrett, Peter, McCullough, James, White, Kyle C., Ramanan, Mahesh and Attokaran, Antony G. (2025). Epidemiology and outcomes of patients with adult congenital heart disease in Queensland intensive care units: a multicentre retrospective observational study. Journal of Cardiothoracic and Vascular Anesthesia. doi: 10.1053/j.jvca.2025.08.049
2025
Journal Article
The dawn of target trials in Intensive Care: time to move beyond association is not causation. Authors’ reply
Blank, Sebastiaan Paul, Blank, Ruth Miriam, Laupland, Kevin B., White, Kyle C. and Ramanan, Mahesh (2025). The dawn of target trials in Intensive Care: time to move beyond association is not causation. Authors’ reply. Intensive Care Medicine, 51 (9), 1734-1735. doi: 10.1007/s00134-025-08018-5
2025
Journal Article
Sodium bicarbonate in critical illness: targeted or too broad? Author’s reply
Blank, Ruth Miriam, Blank, Sebastiaan Paul, Laupland, Kevin B., White, Kyle C. and Ramanan, Mahesh (2025). Sodium bicarbonate in critical illness: targeted or too broad? Author’s reply. Intensive Care Medicine, 51 (10), 1-2. doi: 10.1007/s00134-025-08091-w
2025
Conference Publication
Epidemiology and Outcomes of Patients With Adult Congenital Heart Disease in Queensland Intensive Care Units: A Multicentre Retrospective Observational Study
Ashby, A., Anstey, C., Attokaran, A., Siriwarden, M., Mullany, D., Kumar, A., Pryke, C., Laupland, K., Tabah, A., Shekar, K., Blank, S., Whebell, S., Luke, S., Raman, S., Garrett, P., McCullough, J., White, K. and Ramanan, M. (2025). Epidemiology and Outcomes of Patients With Adult Congenital Heart Disease in Queensland Intensive Care Units: A Multicentre Retrospective Observational Study. 73rd Annual Scientific Meeting of the Cardiac Society of Australia and New Zealand, Sydney, NSW Australia, 14-17 August 2025. Chatswood, NSW Australia: Elsevier. doi: 10.1016/j.hlc.2025.06.237
2025
Journal Article
Persistent critical illness and long-term survival in cardiac surgery: A multicentre cohort study
Subramaniam, Ashwin, Ling, Ryan Ruiyang, Bonavia, William, Ramanathan, Kollengode, Ramanan, Mahesh, Shekar, Kiran and Pilcher, David (2025). Persistent critical illness and long-term survival in cardiac surgery: A multicentre cohort study. Anaesthesia Critical Care & Pain Medicine, 44 (6) 101593, 101593-6. doi: 10.1016/j.accpm.2025.101593
2025
Journal Article
Metabolic alkalosis acquired in intensive care: a retrospective cohort study
Goh, Gordon, Blank, Sebastiaan, Doola, Ra’eesa, Alder, Nelson, Ahuja, Abhilasha, Laupland, Kevin B., Tabah, Alexis, Shekar, Kiran, Kumar, Aashish, White, Kyle, Attokaran, Antony, Luke, Stephen, Whebell, Stephen, Garrett, Peter, Nesbitt, Alexander, McCullough, James, McIlroy, Philippa and Ramanan, Mahesh (2025). Metabolic alkalosis acquired in intensive care: a retrospective cohort study. Anaesthesia Critical Care & Pain Medicine, 44 (6) 101591, 101591-6. doi: 10.1016/j.accpm.2025.101591
2025
Journal Article
Sodium bicarbonate administration for metabolic acidosis in the intensive care unit: a target trial emulation
Blank, Sebastiaan Paul, Blank, Ruth Miriam, Laupland, Kevin B., Tabah, Alexis, Gill, Denzil, Kumar, Aashish, White, Kyle, Attokaran, Antony, Luke, Stephen, Whebell, Stephen, Garrett, Peter, McCullough, James, McIlroy, Philippa, Ramanan, Mahesh, Keogh, Sam, Tyack, Zephanie, Gatton, Michelle, Nash, Ben, Blank, Sebastiaan, Dash, Sananta, Senthuran, Siva, Smart, Christopher, Taylor, Jennifer, Paasilahti, Anni, Reoch, Josephine, Poggenpoel, Jaco, Attokaran, Antony G., Anderson, Cameron, Lutshaba, Langa ... Denny, Kerina J. (2025). Sodium bicarbonate administration for metabolic acidosis in the intensive care unit: a target trial emulation. Intensive Care Medicine, 51 (6), 1078-1086. doi: 10.1007/s00134-025-07979-x
2025
Journal Article
The impact of critical illness on the outcomes of cardiac surgery in patients with acute infective endocarditis
Matebele, Mbakise P., Vemuri, Kanthi R., Sedgwick, John F., Marshall, Lachlan, Horvath, Robert, Obonyo, Nchafatso G. and Ramanan, Mahesh (2025). The impact of critical illness on the outcomes of cardiac surgery in patients with acute infective endocarditis. Hearts, 6 (2) 15, 15. doi: 10.3390/hearts6020015
2025
Journal Article
A randomised, controlled, feasibility trial comparing vasopressors infused via peripheral cannula versus central venous access for critically ill adults: The VIPCA trial
Ramanan, Mahesh, Apte, Yogesh, Watts, Stacey, Holland, Thomas, Hatt, April, Craswell, Alison, Lin, Frances, Tabah, Alexis, Ware, Robert S., Byrnes, Joshua, Anstey, Christopher and Keijzers, Gerben (2025). A randomised, controlled, feasibility trial comparing vasopressors infused via peripheral cannula versus central venous access for critically ill adults: The VIPCA trial. Critical Care and Resuscitation, 27 (2) 100106, 100106. doi: 10.1016/j.ccrj.2025.100106
2025
Journal Article
Prevalence and characteristics of metaraminol usage in a large intensive care patient cohort. A multicentre, retrospective, observational study
Zimsen, Tarren, Quick, Lachlan, White, Gentry, Costa-Pinto, Rahul, Whebell, Stephen, Meyer, Jason, McCullough, James, Shekar, Kiran, Laupland, Kevin B., Ramanan, Mahesh, Blank, Sebastiaan, Tabah, Alexis, Luke, Stephen, Garrett, Peter, Attokaran, Antony G., Kumar, Aashish and White, Kyle C. (2025). Prevalence and characteristics of metaraminol usage in a large intensive care patient cohort. A multicentre, retrospective, observational study. Critical Care and Resuscitation, 27 (2) 100112, 100112. doi: 10.1016/j.ccrj.2025.100112
2025
Journal Article
Impact of frailty on outcomes after cardiac surgery
Ahuja, Abhilasha, Baker, Thomas and Ramanan, Mahesh (2025). Impact of frailty on outcomes after cardiac surgery. Journal of Thoracic and Cardiovascular Surgery, 169 (6), 1787-1794.e9. doi: 10.1016/j.jtcvs.2024.05.025
2025
Journal Article
Fludrocortisone to treat patients with aneurysmal subarachnoid haemorrhage: Protocol for an international, phase 3, randomised, placebo-controlled, multicentre trial
Cohen, Jeremy, Delaney, Anthony, Udy, Andrew, Andersen, Christopher, Anderson, Craig S., Bellapart, Judith, Burrell, Louise M., Devaux, Anthony, Evans, David M., Fitzgerald, Emily, Garside, Tessa, Hammond, Naomi, Hardie, Miranda, Jeffree, Rosalind L., Knowles, Serena, Lassig-Smith, Melissa, Li, Qiang, Nethathe, Gladness, Rajbhandari, Dorrilyn, Ramanan, Mahesh, Talbot, Philip, Taylor, Colman, Wright, Jason, Young, Morag J., Young, Paul J. and Venkatesh, Balasubramanian (2025). Fludrocortisone to treat patients with aneurysmal subarachnoid haemorrhage: Protocol for an international, phase 3, randomised, placebo-controlled, multicentre trial. Critical Care and Resuscitation, 27 (2) 100116, 1-7. doi: 10.1016/j.ccrj.2025.100116
Supervision
Availability
- Dr Mahesh Ramanan is:
- Available for supervision
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