Renal failure is present in 40% of heart failure patients, and is one of the main comorbidities of heart failure. Follow-up with pulmonary artery pressure (PAP) monitoring has shown a reduction in mortality and frequency of hospitalization in patients with heart failure alone in the CHAMPION trial. Patients with New York Heart Association class III heart failure and a hospitalization in the previous 12 months were included in that study. They benefited from the "CardioMEMS™ HF" device with a sensor implanted in the pulmonary artery to measure PAP. According to that study, the information led to more precise and early adaptation of therapy by avoiding the onset of heart failure symptoms and reducing the number of hospitalizations. However, in that study, patients with impaired renal function (Glomerular Filtration Rate\<25 mL/min/1.73m2) were excluded, limiting the indication for treatment in those patients, and the evolution of renal function during the study was not reported.
Patients with heart failure AND advanced renal failure are defined as having a cardio-renal syndrome, with strong interaction between these 2 organs. In the event of predominant right heart failure, they may require treatment by renal replacement or dialysis. There seems to be a link between high venous pressure, renal repercussions and the need for dialysis. Additional follow-up data in this clinical situation are needed to confirm this link and to suggest the interest of continuous PAP monitoring to improve the management of these patients with cardio-renal syndrome with severe renal impairment defined by a Glomerular Filtration Rate\< 30 ml/min/1.73m2 (KDIGO Cardio-renal 2019). This pilot study aims to evaluate how tolerable the "CARDIOMEMS™ HF" device in patients with cardio-renal syndrome and obtain the first information on the relationship between cardiac hemodynamics and renal function in this population.
Patient with class NYHA III heart failure having been hospitalized in the previous 12 months for cardiac decompensation (the current indication for the CARDIOMEMS™ system), right heart failure or biventricular heart failure with the definition of TAPSE<15mm and/or SDTI<9.5cm/s regardless of LVEF, NtproBNP>1500 pg/ml.
Patient with advanced renal failure with GFR (CKD-EPI) < 30 ml/min/1.73m2 for more than 3 months confirmed by GFR measurement (Iohexol clearance)
Patient with a pulmonary artery greater than 7 mm in diameter.
The patient has been informed of the study set-up, objectives, constraints and patient rights.
Patients with a contraindication to the CARDIOMEMS™ HF system (pulmonary embolism with sequelae, artery less than 7 mm, active infection).
Patients already on renal replacement therapy.
Patients with a history of acute venous thrombosis.
Patients unable to tolerate right heart catheterization.
Single group
Implantation of the CARDIOMEMS™ HF device
DeviceThe initial routine workup includes a nephrological evaluation: mGFR with Iohexol before fitting the CARDIOMEMS™ HF device, renal echo-Doppler, urinary sedimentation, etiological assessment of severe Chronic Kidney Disease, NT-ProBNP, impedancemetry, urinary ionogram, weight, anemia assessment, and correction of possible iron and/or vitamin deficiency and a cardiology evaluation: blood pressure, heart rate, clinical data, biology (Complete Blood Count, iono, urea, creatinine, total bilirubin, ferritin, CST), echocardiography (Left Ventricle Ejection Fraction, E/A, E/e', indexed volume of the left atrium, Tricuspid Annular Plane Systolic Excursion, Tissue Doppler S-wave, surface area of the right atrium, Systolic Pulmonary Artery Pressure, Right Atrial Pressure). The device will be implanted in the selected patients by Pr François Roubille at Montpellier University Hospital within 1 month of the pre-inclusion visit. It will monitor their pulmonary artery pressure.
Adverse events
Perioperative collection of complications related to the puncture site (hematoma, arteriovenous fistula) and right catheterization (arrhythmia, peri-procedure heart failure decompensation).
Adverse events
Monthly collection of adverse events over the 12-month follow-up period. In particular, cardiac parameters will be collected (sensor failure, migration, re-calibration, re-intervention, gas embolism, allergic reaction, abnormal heart rate or rhythm, bleeding, hematoma, chest pain, nausea, vascular accident, infection, sepsis, delayed healing, atrial dysrhythmia clot formation, ecchymosis, vascular trauma, valve damage, pulmonary infarction, pulmonary embolism, heart attack (myocardial infarction), death, hemoptysis, separation of sensor and delivery system impossible) and renal (risk of infection, thrombotic risk, interference with dialysis catheter placement).
Adverse events
Perioperative collection of complications related to the puncture site (hematoma, arteriovenous fistula) and right catheterization (arrhythmia, peri-procedure heart failure decompensation). Monthly collection of adverse events over the 12-month follow-up period. In particular, cardiac parameters will be collected (sensor failure, migration, re-calibration, re-intervention, gas embolism, allergic reaction, abnormal heart rate or rhythm, bleeding, hematoma, chest pain, nausea, vascular accident, infection, sepsis, delayed healing, atrial dysrhythmia clot formation, ecchymosis, vascular trauma, valve damage, pulmonary infarction, pulmonary embolism, heart attack (myocardial infarction), death, hemoptysis, separation of sensor and delivery system impossible) and renal (risk of infection, thrombotic risk, interference with dialysis catheter placement).
Adverse events
Monthly collection of adverse events over the 12-month follow-up period. In particular, cardiac parameters will be collected (sensor failure, migration, re-calibration, re-intervention, gas embolism, allergic reaction, abnormal heart rate or rhythm, bleeding, hematoma, chest pain, nausea, vascular accident, infection, sepsis, delayed healing, atrial dysrhythmia clot formation, ecchymosis, vascular trauma, valve damage, pulmonary infarction, pulmonary embolism, heart attack (myocardial infarction), death, hemoptysis, separation of sensor and delivery system impossible) and renal (risk of infection, thrombotic risk, interference with dialysis catheter placement).
Estimated effect on renal function
The estimated Glomerular Filtration Rate (eGFR) will be recorded in mL/min
Measured effect on renal function
The Glomerular Filtration Rate measured with Iohexol (mGFR) will be recorded in mL/min.
Estimated effect on renal function
The estimated Glomerular Filtration Rate (eGFR) will be recorded in mL/min
Measured effect on renal function
The Glomerular Filtration Rate measured with Iohexol (mGFR) will be recorded in mL/min.
Age of patients
In years
Weight of patients
In kilograms
Height of patients
In centimeters
Patient's cardiac history
The type of cardiopathy (ischemic, rhythmic, valvular, primitive dilated, hypertrophic, toxic, restrictive etc; will all be recorded.
Click on the lead sponsor to view all of their trials.
Centre Hospitalier Universitaire de Nīmes
Lead sponsor
CHU Arnaud de Villeneuve MONTPELLIER
Collaborator
