VSD Closure: How Doctors Fix Tricuspid Regurgitation
"A new ultrasound study reveals how closing ventricular septal defects can improve heart valve function and overall heart health."
A ventricular septal defect (VSD) is a hole in the wall separating the two lower chambers of the heart. This common congenital heart defect can sometimes lead to other heart problems, including tricuspid regurgitation. Tricuspid regurgitation occurs when the tricuspid valve, which sits between the right atrium and right ventricle, doesn't close properly, causing blood to leak backward.
For simple VSDs, doctors often use a procedure called interventional occlusion to close the hole. While this is generally considered safe, there can be complications, especially when tricuspid regurgitation is also present. It is critical to determine if surgery is the best option.
A new study has explored the connection between VSDs, tricuspid regurgitation, and the effectiveness of VSD occlusion. Using detailed ultrasound imaging, researchers have uncovered key insights into how closing the VSD can improve tricuspid valve function, offering a promising approach to treatment.
Why Tricuspid Regurgitation Matters
Tricuspid regurgitation can affect symptoms, right-sided heart function, and long-term health, but its impact varies with severity and cause. In the context of VSD closure, clinicians must consider both the original defect and the condition of the tricuspid valve. The available evidence supports individualized assessment rather than relying on a single general estimate.
Evaluation and Treatment Options
Diagnosis and treatment of tricuspid regurgitation remain rapidly evolving because tricuspid anatomy is complex, the cause of regurgitation can be difficult to identify, and treatment pathways are heterogeneous. Management strategies include medications, surgical interventions, and increasingly, interventional approaches guided by clinical, imaging, and hemodynamic findings. In VSD repair, tricuspid valve detachment has been studied as an alternative to repair without detachment, but the central question is whether it provides superior outcomes. (Reference URL 1; Reference URL 2)
Recognizing Post-Closure Valve Complications
Reports of tricuspid regurgitation after transcatheter VSD closure helped establish that closing the defect does not eliminate every potential valve-related complication. One published case described tricuspid regurgitation after percutaneous transcatheter VSD closure, followed by successful surgery and a satisfactory postoperative course with a well-functioning tricuspid valve. More recent research has specifically examined tricuspid regurgitation and long-term outcomes after transcatheter closure of pediatric perimembranous VSDs, reflecting a shift toward systematic follow-up of this complication. (Reference URL 1; Reference URL 2)
Unraveling the Link: VSDs and Tricuspid Regurgitation
Researchers used echocardiography (ultrasound of the heart) to study 43 patients with both a membranous VSD and tricuspid regurgitation. They carefully measured the size of the VSD and the amount of tricuspid regurgitation before and after VSD occlusion.
- Short Tricuspid Valve Septa: The VSD opens directly near the valve, causing blood to flow into the right atrium.
- Interminable Anterior Tricuspid Valve or Abnormal Chordae Tendineae Attachment: The shunt flow hits the valve or its supporting structures, deflecting blood into the right atrium.
- Irregular Adhesion of the Right Ventricular Septal Defect: Tissue adhesions create a tunnel, directing blood flow toward the tricuspid valve.
- Pulmonary Hypertension: Increased pressure in the lungs strains the heart and contributes to tricuspid regurgitation.
Emerging Evidence After VSD Closure
A recent study describes itself as the first to focus specifically on tricuspid regurgitation after transcatheter closure of pediatric perimembranous VSDs and its long-term outcomes. Broader reviews continue to cover the epidemiology, classification, clinical presentation, and medical, surgical, and percutaneous treatment of tricuspid regurgitation. A 2025 report states that tricuspid regurgitation may improve after VSD closure as right-ventricular hemodynamics normalize and pressure on the tricuspid valve decreases, while mild-to-moderate regurgitation appeared more likely to improve than severe disease. (Reference URL 1; Reference URL 2)
Why Treatment Decisions Remain Difficult
Contemporary care for tricuspid regurgitation remains challenging even as direct tricuspid valve interventions gain a stronger evidence base. A 2026 ACC Editors' Corner review synthesizes lessons from clinical trials that now guide decisions about these interventions. The continuing emphasis on practical decision-making indicates that trial evidence must still be matched to individual anatomy, disease severity, and clinical circumstances.
Comparing Repair Strategies
Tricuspid valve detachment is being evaluated against conventional surgical repair without detachment in patients undergoing VSD treatment. A systematic review specifically examines the efficacy and safety of tricuspid valve detachment versus the non-detachment approach. Separately, a meta-analysis compares transcatheter tricuspid valve repair, surgical tricuspid valve repair, and surgical tricuspid valve replacement for short- and long-term outcomes. (Reference URL 1; Reference URL 2)
A Promising Future for Heart Health
This research highlights the importance of echocardiography in understanding and treating VSDs complicated by tricuspid regurgitation. By carefully examining the heart's structure and blood flow, doctors can determine the best course of action for each patient.
Individualized Clinical Judgment
The available evidence suggests that VSD closure and tricuspid regurgitation should be considered together rather than as isolated problems. Outcomes may depend on the defect, the valve's anatomy, the severity of regurgitation, and the selected repair strategy. Because the evidence continues to evolve, treatment decisions are best individualized and followed with appropriate clinical assessment.
An Evolving Treatment Landscape
Future progress will likely focus on improving how clinicians identify patients who may benefit from intervention and how they monitor valve function after VSD closure. Advances in imaging and less invasive treatment may expand available options, although their long-term value will require continued evaluation. More consistent follow-up could also clarify which forms of tricuspid regurgitation improve and which persist.
Balancing Complexity and Access
Tricuspid regurgitation illustrates the broader challenge of treating conditions in which anatomy, cause, severity, and timing all influence management. Care may require coordination among imaging specialists, cardiologists, surgeons, and interventional teams. Differences in expertise, resources, and follow-up can affect how consistently patients receive evaluation and treatment.
Outcomes Beyond the Procedure
Real-world research is examining more than procedural success in patients with severe tricuspid regurgitation. A 2025 study set out to evaluate three-year clinical outcomes, health care resource utilization, and health care expenditures using a large-scale real-world data set. These measures can help describe how severe disease affects patients and health systems after treatment decisions are made.
The study confirms that VSD occlusion can be an effective way to reduce tricuspid regurgitation and improve overall heart health. This minimally invasive procedure offers a safe and promising option for many patients.
With continued research and advancements in treatment techniques, doctors can provide even better care for individuals with VSDs and tricuspid regurgitation, leading to improved outcomes and a better quality of life.