Overview
Prosthetic aortic valve failure refers to malfunction or dysfunction of a surgically implanted aortic valve, potentially necessitating reintervention or replacement due to issues like structural deterioration, thrombosis, or paravalvular leak 1.Diagnosis
Clinical assessment for symptoms such as dyspnea, angina, syncope, or heart failure exacerbation 1.
Echocardiography is essential for evaluating valve function, detecting structural abnormalities, and quantifying paravalvular regurgitation 1.
Hemodynamic monitoring to assess for signs of hemodynamic instability indicative of severe valve dysfunction 1.Management
Reintervention: Surgical or transcatheter re-replacement depending on patient suitability and valve condition 1.
Medication Management: Anticoagulation for mechanical valves to prevent thrombosis; specific drug classes and doses vary based on valve type 1.
Close Monitoring: Regular follow-up echocardiograms to monitor valve function and detect early signs of failure 1.Special Populations
Elderly: Consideration of frailty and comorbidities when deciding between surgical and transcatheter reinterventions 1.
Comorbidities: Patients with significant comorbidities may benefit from a minimalistic approach with conscious sedation during procedures to reduce complications and ICU stay 1.Key Recommendations
Utilize conscious sedation over intubation anesthesia in transfemoral aortic valve replacement to potentially reduce ICU stay and mechanical ventilation time (Evidence: Moderate) 1.
Regular echocardiographic follow-up is crucial for early detection of prosthetic aortic valve dysfunction (Evidence: Expert opinion) 1.
Reintervention strategies should be tailored to patient-specific factors including age and comorbid conditions (Evidence: Expert opinion) 1.References
1 Maier A, Hammerich B, Humburger F, Brieschal T, Heidt T, Bothe W et al.. A logistic regression analysis comparing minimalistic approach and intubation anaesthesia in patients undergoing transfemoral transcatheter aortic valve replacement. PloS one 2020. link