Related Experiment Video
Updated: May 19, 2026

A Modified Two Kidney One Clip Mouse Model of Renin Regulation in Renal Artery Stenosis
Published on: October 26, 2020
Current therapeutic strategies in cardiorenal syndrome
A Palazzuoli1, A Geyer, A Malandrino
1Department of Internal Medicine, University of Siena, Siena, Italy. palazzuoli2@unisi.it
Insights
Cardiorenal syndromes (CRS) involve heart and kidney dysfunction. Further studies are needed to optimize drug dosages for chronic heart failure and renal impairment to improve patient outcomes.
Area of Science:
- Nephrology
- Cardiology
- Internal Medicine
Background:
- Cardiorenal syndromes (CRS) describe conditions where heart dysfunction impacts kidneys, or vice versa.
- Primary organ dysfunction often leads to secondary injury in the other organ.
- Current guidelines lack specific recommendations for CRS patients with renal impairment.
Purpose of the Study:
- To highlight the need for further research into optimal drug titration and dosages for CRS.
- To address the lack of demonstrated renal improvement in recent acute heart failure trials.
- To guide therapeutic strategies for improving renal function and reducing mortality in CRS.
Main Methods:
- Review of current literature and clinical trial outcomes in cardiorenal syndromes.
- Analysis of treatment guidelines for acute heart failure syndromes (AHFS) concerning renal impairment.
- Identification of knowledge gaps regarding drug efficacy and safety in CRS.
Main Results:
- Recent clinical trials in acute heart failure syndromes (AHFS) have not shown improvements in renal function or perfusion.
- Existing guidelines do not offer specific recommendations for AHFS patients with kidney dysfunction.
- There is a clear need to investigate drug dosages and potential adverse effects in CRS.
Conclusions:
- Optimizing drug therapy to improve renal function, reduce neurohormonal activation, and enhance renal blood flow is crucial.
- Such therapeutic improvements could significantly decrease mortality and hospitalization rates in CRS patients.
- Further clinical trials are essential to establish evidence-based treatment protocols for cardiorenal syndromes.
Abstract:
Cardiorenal syndromes (CRS) are disorders of the heart and kidneys in which an acute or chronic dysfunction in one organ may induce acute or chronic dysfunction of the other. Primary disorders of one of these two organs often result in secondary dysfunction or injury of the other. The lack of specific trials in this field highlights the need for further studies aimed to assess titration and appropriate dosages of drugs, according to both the etiology of chronic heart failure (CHF) and also the severity of underlying renal dysfunction. Moreover, the most recent clinical trials evaluating clinical and renal outcome in acute heart failure syndromes (AHFS), failed to demonstrate an improvement in renal function and perfusion. Therefore, Current American and European Guidelines for AHFS does not provide specific recommendation for patients with renal impairment. In this scenario several questions regarding the drugs, their recommended dosage and potential adverse effects on cardiac and renal outcome need to be addressed. Subsequently, therapy inducing an improvement in the renal function, a reduction of neurohormonal activation and an improvement of renal blood flow, could lead to a reduction in mortality and hospitalization in patients with CRS.
Related Concept Videos
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System
Acute Kidney Injury V: Interprofessional Care
Heart Failure V: Medical Management
Heart Failure Drugs: Diuretics
Continuous Renal Replacement Therapy
Heart Failure VI: Adjunct Therapies