Related Experiment Video
Updated: Jun 27, 2026
14:14
Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
Published on: December 11, 2017
The relationship between renal function and outcome from heart valve surgery.
Patrick H Gibson1, Bernard L Croal, Brian H Cuthbertson
1Department of Cardiology, University of Aberdeen and Aberdeen Royal Infirmary, Aberdeen, UK.
American Heart Journal
|December 9, 2008
Summary
Renal function is a key predictor of survival after heart valve surgery. Lower estimated glomerular filtration rate (eGFR) independently indicates a higher risk of death, even when considering other risk factors.
Area of Science:
- Cardiology
- Nephrology
- Surgical Outcomes
Background:
- Prognostic significance of renal function in valvular heart disease surgery is unclear.
- This study investigates renal function as a predictor of outcomes in cardiac surgery patients.
Purpose of the Study:
- To determine the prognostic value of renal function, specifically estimated glomerular filtration rate (eGFR), in patients undergoing heart valve surgery.
- To assess if eGFR independently predicts mortality beyond established risk scores like EuroSCORE.
Main Methods:
- Prospective data collection from 514 patients undergoing heart valve surgery (excluding endocarditis/emergency cases).
- Estimated glomerular filtration rate (eGFR) calculated using the Modification of Diet in Renal Disease equation.
- All-cause mortality as the primary outcome, with follow-up for a median of 2 years.
Main Results:
- 87 deaths occurred during follow-up.
- Both eGFR and creatinine levels predicted mortality in univariable analysis.
- eGFR remained a significant independent predictor of death in multivariable models, including EuroSCORE.
- Preoperative eGFR <60 mL/min/1.73 m2 was associated with significantly increased hazard of death (HR 2.31, P=.001).
Conclusions:
- Estimated glomerular filtration rate (eGFR) is a potent, independent predictor of outcomes in patients undergoing heart valve surgery.
- The prognostic value of eGFR is significant, irrespective of other known risk factors and the EuroSCORE.
- Assessing renal function is crucial for risk stratification in patients undergoing cardiac valve procedures.
Related Concept Videos
01:22Heart Failure Drugs: Diuretics
Heart failure and kidney perfusion are interconnected in a complex way. Reduced renal perfusion and venous congestion are two significant factors that contribute to renal dysfunction in heart failure. The kidneys, primarily responsible for fluid balance in the body, are adversely affected due to compromised cardiac output and increased venous pressure. In response to reduced renal perfusion, the kidneys activate neurohumoral mechanisms to restore balance. However, these mechanisms can be...
01:26Heart Failure Drugs: Inhibitors of Renin-Angiotensin System
The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
01:28Mitral Regurgitation IV: Nursing Management
Mitral regurgitation (MR) is a condition where the mitral valve does not close properly, leading to the backward flow of blood from the left ventricle into the left atrium during systole. This condition can arise from various causes, including rheumatic fever, infective endocarditis, or degenerative valve disease. Effective nursing management is crucial to optimizing patient outcomes and involves comprehensive assessment and targeted interventions.Comprehensive Patient AssessmentA detailed...
01:25Aortic Regurgitation III: Medical Management
Aortic regurgitation (AR) is when the aortic valve does not close or seal properly, leading to backward blood circulation from the aorta into the left ventricle during diastole. Common causes of AR include rheumatic heart disease, congenital valve defects, and aortic root dilation. Managing AR requires a multifaceted approach to alleviate symptoms, preserve left ventricular function, and address the underlying cause of the regurgitation. Patients with symptomatic AR or significant left...
01:28Kidney Transplant I: Introduction
A kidney transplant is a surgical approach that involves replacing a non-functioning kidney with a healthy one from a donor. This procedure is often a treatment option for end-stage renal disease (ESRD) patients. The method requires careful recipient selection, including evaluating various medical and psychosocial factors. These criteria vary between transplant centers but generally include assessments of the patient's overall health, adherence to medical recommendations, and lifestyle...
01:16Kidney Transplant III: Nursing Management
Postoperative Nursing Management for Kidney Transplant PatientsPostoperative nursing management care includes monitoring the surgical site, encouraging early movement, and promoting lung health through breathing exercises. Nurses also administer prescribed medications like H2-blockers, such as famotidine, or proton pump inhibitors, like omeprazole, to help prevent gastrointestinal ulcers and bleeding. Fungal infections in the mouth and bladder can result from immunosuppressive and antibiotic...