Related Experiment Video
Updated: Oct 3, 2025
05:31
Transcatheter Pulmonary Valve Replacement from Autologous Pericardium with a Self-Expandable Nitinol Stent in an Adult Sheep Model
Published on: June 8, 2022
3.0K
Successful redo aortic valve replacement using Perceval for multiple recurrent prosthetic valve dysfunction
Yumi Kakizawa1, Hiroyuki Nishi1, Takasumi Goto1
1Department of Cardiovascular Surgery, Osaka General Medical Center, Osaka, Japan.
Interactive Cardiovascular and Thoracic Surgery
|February 16, 2022
Summary
A patient with recurrent severe paravalvular leakage (PVL) after multiple aortic valve replacements (AVR) successfully underwent a fourth AVR using a sutureless valve, avoiding further complications. Sutureless AVR offers a promising alternative for complex PVL cases.
Area of Science:
- Cardiology
- Cardiac Surgery
- Biomedical Engineering
Background:
- Paravalvular leakage (PVL) is a significant complication following aortic valve replacement (AVR).
- Recurrent PVL due to prosthetic valve detachment presents a challenging clinical scenario.
- Conventional AVR techniques may have limitations in managing complex cases of PVL.
Observation:
- A 50-year-old male patient experienced severe PVL recurrence after three previous AVR procedures.
- The repeated PVL was attributed to prosthetic valve detachment from the aortic annulus.
- This necessitated a fourth AVR to address the persistent leakage.
Findings:
- A fourth AVR was successfully performed utilizing a self-expanding sutureless aortic valve prosthesis.
- Postoperative echocardiography confirmed the absence of significant paravalvular leakage.
- The patient experienced an uncomplicated recovery and resumed normal activities shortly after discharge.
Implications:
- Sutureless AVR technology demonstrates potential as an effective alternative for patients with recurrent PVL.
- This approach may offer improved outcomes in complex cases where conventional AVR has failed.
- Further research into sutureless valves for challenging PVL scenarios is warranted.
Related Concept Videos
01:26Mitral Stenosis III: Medical Management
34
Mitral stenosis, a condition marked by the narrowing of the mitral valve, necessitates an integrated approach for effective management. This approach includes preventative measures, medical therapy, and surgical interventions to reduce symptoms and prevent complications.PreventionPrevention of mitral stenosis primarily focuses on reducing the incidence of bacterial infections, particularly streptococcal infections, which can lead to rheumatic fever and subsequent valvular damage. Timely...
34
01:22Mitral Valve Prolapse II: Assessment and Management
54
IntroductionA range of clinical features characterizes Mitral Valve Prolapse (MVP), but it is important to note that many individuals with MVP are asymptomatic and may remain so throughout their lives. For those who do exhibit symptoms, the following are the key clinical features:Palpitations: This is a common symptom where individuals feel an irregular or rapid heartbeat. Palpitations in MVP are often due to arrhythmias such as premature ventricular contractions or supraventricular...
54
01:25Aortic Regurgitation III: Medical Management
60
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...
60
01:15Aortic Regurgitation I: Introduction
63
IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...
63
01:27Mitral Valve Prolapse I: Introduction
62
IntroductionThe mitral valve, one of the heart's four valves, regulates blood flow. These valves have flaps that open and close to direct blood properly through the heart and body. During each heartbeat, the flaps open for blood to pass through and seal shut to prevent backflow. Specifically, the mitral valve opens to allow blood flow from the heart's upper left chamber to the lower left chamber. It then closes securely as the lower left chamber contracts to pump blood to the body, preventing...
62
01:25Mitral Regurgitation III: Medical Management
45
Mitral regurgitation (MR) is characterized by retrograde blood circulation from the left ventricle into the left atrium due to inadequate mitral valve closure. The severity of the condition, symptoms, and underlying cause determine treatment strategies.Monitoring and Pharmacological TreatmentPatients with mild to moderate MR typically do not need immediate intervention but regular monitoring to assess progression and guide treatment. Patients with mild MR should have an echocardiogram every 3-5...
45