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While the Y-incision technique allows for larger prosthetic valves, surgeons must remain aware of potential Y-incision complications. This approach effectively addresses prosthesis-patient mismatch in patients with small aortic annuli. However, a recent case report highlights a rare but severe outcome: the development of early postoperative central mitral regurgitation. This incident emphasizes that even successful enlargement procedures can occasionally alter critical cardiac structures.
Research suggests that the distortion of the mitral annulus primarily drives these Y-incision complications. In the reported case, imaging revealed abnormal aorto-mitral geometry adjacent to the patch site. Furthermore, the surgeons hypothesized that turbulent flow within the newly formed pouch-like curtain contributed to valve failure. Additionally, sutures placed too close to the mitral annulus can mechanically pull the valve out of alignment. Consequently, the patient required a reoperation to address the structural deformity and restore valvular function.
To prevent such issues, clinicians should focus on patient-specific anatomy during preoperative assessments. Therefore, measuring the aorto-mitral angle and the distance between the annuli is vital. Careful intraoperative patch positioning also remains a cornerstone of surgical safety. By following these meticulous steps, surgical teams can significantly reduce the risk of unexpected valvular incompetence.
Mitral regurgitation usually results from annular distortion or changes in the aorto-mitral geometry. This occurs when patch sutures are placed too close to the mitral valve or when the surgical site creates turbulent flow patterns.
Surgeons can minimize risks by conducting a thorough preoperative anatomical assessment. Meticulous intraoperative positioning of the patch and avoiding sutures near the mitral annulus are also critical strategies.
Disclaimer: This content is for informational and educational purposes only. It does not constitute medical advice or a professional physician-patient relationship. Readers should always consult with a qualified healthcare provider regarding any medical condition or treatment. Refer to the latest local and national guidelines for clinical practice.
References
Özçelik S et al. Severe mitral regurgitation after aortic annular enlargement with Y-incision: a case report. J Cardiothorac Surg. 2026 May 04. doi: 10.1186/s13019-026-04047-3. PMID: 42083003.
Yang B, Ghita C, Palmer S. Y-incision Aortic Root Enlargement. Operative Techniques in Thoracic and Cardiovascular Surgery. 2021. doi: 10.1016/j.otctcas.2021.08.003.
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