Ron Wald

MDCM, MPH

Scientist

Biography

Ron Wald is a nephrologist at St. Michael’s Hospital and Director of the hospital’s Hemodialysis Program. He is a Professor of Medicine at the University of Toronto. A native of Montreal, he completed his undergraduate and medical degrees at McGill University and continued his clinical training in internal medicine and nephrology at the University of Toronto. Following this, he completed his Master of Public Health at Harvard University and a research fellowship at Tufts Medical Center in Boston. Dr. Wald’s research areas are critical care nephrology and maintenance dialysis. He was co-principal investigator of the STARRT-AKI trial, a Canadian Institutes of Health Research-funded international trial on the timing of dialysis initiation in critically ill patients with acute kidney injury. He is also interested in fluid management in the setting of acute kidney injury and the long-term outcomes of patients who survive an episode of acute kidney injury. In the realm of maintenance dialysis, he is on the leadership team of the multinational PHOSPHATE trial that is evaluating whether intensive lowering of serum phosphate reduces the risk of major adverse cardiovascular events.

Please note: Dr. Wald is not taking any summer students.

Recent Publications

  1. Grosse-Wortmann, L, Wald, R, Valverde, I, Lsangiacomo-Buechel, E, Ordovas, K, Raimondi, F et al.. Society for Cardiovascular Magnetic Resonance Guidelines for Reporting Cardiovascular Magnetic Resonance Examinations in Patients with Congenital Heart Disease. J Cardiovasc Magn Reson. 2024; :101062. doi: 10.1016/j.jocmr.2024.101062. PubMed PMID:39053855 .
  2. Wang, AY, Serpa Neto, A, Gallagher, M, Wald, R, Bagshaw, SM, Bellomo, R et al.. Association of Age, Frailty and Strategy for Initiation of Renal Replacement Therapy: a post-hoc analysis of the STARRT-AKI trial. Blood Purif. 2024; :. doi: 10.1159/000540323. PubMed PMID:39047692 .
  3. Robinson, CH, Jeyakumar, N, Luo, B, Askenazi, D, Deep, A, Garg, AX et al.. Long-Term Kidney Outcomes after Pediatric Acute Kidney Injury. J Am Soc Nephrol. 2024; :. doi: 10.1681/ASN.0000000000000445. PubMed PMID:39018120 .
  4. Sharma Parpia, A. MSc, Valenzano, T.J. PhD, Bosma, R. PhD, Bavota, B. BASc, Deveaux, G. BASc, Wald, R. MDCM MPH FRCPC et al.. Improving Malnutrition Screening among Hemodialysis Patients. Can J Diet Pract Res. 2024; :1-4. doi: 10.3148/cjdpr-2024-002. PubMed PMID:38985950 .
  5. Thomas, SK, DSouza, R, Hanneman, K, Karur, GR, Houbois, C, Ishikita, A et al.. Prognostic value of myocardial deformation parameters for outcome prediction in tetralogy of Fallot. J Cardiovasc Magn Reson. 2024; :101054. doi: 10.1016/j.jocmr.2024.101054. PubMed PMID:38960284 .
  6. Mayourian, J, Sleeper, LA, Lee, JH, Lu, M, Geva, A, Mulder, B et al.. Development and Validation of a Mortality Risk Score for Repaired Tetralogy of Fallot. J Am Heart Assoc. 2024;13 (12):e034871. doi: 10.1161/JAHA.123.034871. PubMed PMID:38860401 PubMed Central PMC11255736.
  7. Mohamed, AA, Gan, W, Babici, D, Hagan, V, Wald, R, Swerdloff, M et al.. Supranuclear Palsy as an Initial Presentation of the Adult-Onset Niemann-Pick Type C. Neurol Int. 2024;16 (3):561-566. doi: 10.3390/neurolint16030042. PubMed PMID:38804481 PubMed Central PMC11130785.
  8. Duarte, VE, Yamamura, K, Economy, KE, Graf, JA, Lu, M, Assenza, GE et al.. The effects of pregnancy in subjects with repaired tetralogy of Fallot. Am Heart J. 2024;274 :95-101. doi: 10.1016/j.ahj.2024.04.015. PubMed PMID:38677503 .
  9. Ishikita, A, Karur, GR, Hanneman, K, Yuen, DA, Chaturvedi, RR, Friedberg, MK et al.. Myocardial Extracellular Volume Fraction Varies With Hemodynamic Load and After Pulmonary Valve Replacement in TOF. JACC Cardiovasc Imaging. 2024;17 (7):830-832. doi: 10.1016/j.jcmg.2024.02.013. PubMed PMID:38639696 .
  10. Pracoń, R, Spertus, JA, Broderick, S, Bangalore, S, Rockhold, FW, Ruzyllo, W et al.. Factors Associated With Coronary Angiography Performed Within 6 Months of Randomization to the Conservative Strategy in the ISCHEMIA Trial. Circ Cardiovasc Interv. 2024;17 (6):e013435. doi: 10.1161/CIRCINTERVENTIONS.123.013435. PubMed PMID:38629312 PubMed Central PMC11187765.
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Affiliations & Other Activities

  • Director, Hemodialysis, Division of Nephrology, Department of Medicine, St. Michael’s Hospital
  • Professor, Department of Medicine and Health Policy Management and Evaluation, University of Toronto
  • Adjunct Scientist, Institute for Clinical Evaluative Sciences