A highly diverse team imagining the undiscovered

RENAL RESEARCH INSTITUTE

A highly diverse
team imagining
the undiscovered

ABOUT THE RENAL RESEARCH INSTITUTE

The heart of RRI’s capacity for innovation is our ability to examine complex problems through multiple lenses.

The Renal Research Institute (RRI) is an internationally recognized incubator of ideas, treatment processes, and technologies to improve the lives of kidney patients. RRI’s leadership in computational biomedicine and data analytics, as well as our access to a large patient population, accelerates the pace of scientific discoveries and their translation into applied medicine. Our team includes some of the brightest minds from around the world, who, along with their disciplinary expertise, bring a deep understanding of global healthcare issues and challenges.

Our Research

RRI’s pioneering leadership in computational biomedicine and data analytics drives breakthroughs, including the introduction of virtual clinical trials and smartphone-based diagnostics. Not only does our interdisciplinary approach foster wide-ranging research within the global framework of Fresenius Medical Care, it encourages collaboration with academic institutions in the United States, Asia, Europe, Latin America, and Africa.

Latest Research & News

Latest Research

  • Jaime Uribarri, Murilo Guedes, Maria Ines Diaz Bessone, Lili Chan, Andres De La Torre, Ariella Mermelstein, Guillermo Garcia-Garcia, Jochen Raimann, Thyago Moraes, Vincent Peters, Stijn Konings, Doug Farrell, Shuchita Sharma, Adrian Guinsburg, Peter Kotanko

    RESULTSThere were 16,796 incident PD patients analyzed. Age, BMI, gender, PD modality, Kt/V and CrCl as well as serum phosphate varied significantly across the different cohorts, but >70% had residual renal function. For most cohorts, both CrCltotal and urea Kt/V associated negatively with serum phosphorus levels, and log-likelihood ratio tests demonstrate that models including CrCltotal have more predictive information than those including only urea Kt/V for the largest cohorts. Models including CrCltotal increase information predicting longitudinal serum phosphate levels irrespective of baseline urea Kt/V, age, use of phosphorus binder, and gender.CONCLUSIONSCrCl was not more accurate in predicting serum phosphate than urea Kt/V, but its inclusion in multivariable models predicting serum phosphate added accuracy. In conclusion, both creatinine clearance and Kt/V are associated with phosphate levels, and using both biomarkers, instead of just one, may better assist in the optimization of serum phosphate levels.BACKGROUNDHyperphosphatemia is associated with poor outcome and is still very common in peritoneal dialysis (PD) patients. Since peritoneal phosphate clearance is closer to peritoneal creatinine clearance than urea clearance, we hypothesized that weekly creatinine clearance (CrCl) could be a better marker of serum phosphate in PD.METHODSIn a retrospective observational study, data from adult PD patients were collected across five institutions in North and South America: LATAM, RRI, Mount Sinai Hospital, Hospital Civil de Guadalajara, and the BRAZPD cohort. All centers analyzed routinely available laboratory data, with exclusions for missing data on serum phosphate, CrCl, or urea Kt/V. A unified statistical protocol was employed across centers. Linear mixed-effect models examined associations between longitudinal serum phosphate levels, CrCl, and Kt/V. Adjustments were made for age, gender, and baseline phosphate binder usage. Mixed-effects meta-analysis determined the pooled effect size of CrCl and Kt/V on serum phosphate trajectories, adjusted for confounders.

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Education

LATEST EPISODE

Solutes, Scaling, Sex: are we getting the dosing of dialysis, right?

Apr 27, 2022

Join Dr. Peter Kotanko, MD, FASN, Head of Biomedical Evidence Generation and Renal Research Institute, and John Daugirdas, MD, FACP, FASN, Clinical Professor of Medicine at the University of Illinois School of Medicine at Chicago, as they discuss aspects around dialysis patient prescription.