Implications of five-year outcomes of PERIGON trial for bioprosthetic aortic valve replacement / 中国胸心血管外科临床杂志

@#For patients with aortic valve disease who require replacement of their native valve, surgical aortic valve replacement (SAVR) has been the standard of care. Due to the hemorrhage and thromboembolic risks of long-term anticoagulation therapy for mechanical prosthesis, bioprosthetic aortic valve replacement (AVR) has a trend to be used in younger patients, which raising the concern for the durability of bioprosthetic valves. The newly published 5-year outcomes of PERIGON trial, with no structural valve deterioration, again demonstrated the favorable durability of the new generation bioprosthetic valves, further providing the evidence of using bioprosthetic AVR in younger patients. At the meantime, the rapid progress of transcatheter aortic valve implantation (TAVI) has brought a new treatment option. For younger patients with low risks, choosing SAVR or TAVI becomes a critical decision. This paper reviews the outcomes of PERIGON trial and its implications to the clinical practice and research of bioprosthetic AVR.

Reemplazo valvular aórtico transcatéter (RVAT): manejo perioperatorio y consideraciones anestésicas / Transcathether aortic valve replacement (TAVR): perioperative management and anesthetic considerations

The trans-catheter aortic valve replacement (TAVR) is becoming more frequent and, therefore, there is need for a proper perioperative management. The new devices have reduced the complications and therefore increased the indications of this technique, even in patients with low surgical risk. It is necessary to know the procedure and the types of valves available, the most frequent access is transfemoral and the devices are usually separated in ballon-expandable and self-expanding valves. There is recent evidence that would indicate some benefits of using sedation as the anesthetic technique, however, the choice should be based on each individual patient, the center and the experience of each anesthesiologist in charge. Although TAVR is much safer today, there are multiple complications reported, such as vascular lesions, paravalvular leakage, neurological complications, among others. An adequate knowledge and monitoring of them will allow us to reduce them in the perioperative period.

Cada vez es más frecuente el reemplazo valvular aórtico trans-catéter (RVAT) y, por ende, la necesidad de su adecuado manejo perioperatorio. Los nuevos dispositivos han disminuido sus complicaciones y, por lo tanto, aumentado su indicación, incluso en pacientes de bajo riesgo quirúrgico. Es necesario conocer la forma en que se realiza el procedimiento, tipos de válvulas disponibles, accesos más frecuentes y los tipos de dispositivos. Existe evidencia reciente que indicaría algunos beneficios de utilizar sedación como técnica anestésica, sin embargo, la elección se debe basar en cada paciente en particular, el centro y la experiencia de cada anestesiólogo a cargo. Si bien el RVAT hoy es mucho más seguro, existen complicaciones, entre las que se encuentran lesiones vasculares, leak paravalvular, complicaciones neurológicas, tamponamiento, entre otras. Un adecuado conocimiento y monitorización de ellas nos permitirá reducirlas en el perioperatorio.

Challenges and opportunities in improving left ventricular remodelling and clinical outcome following surgical and trans-catheter aortic valve replacement / 医学前沿

Over the last half century, surgical aortic valve replacement (SAVR) has evolved to offer a durable and efficient valve haemodynamically, with low procedural complications that allows favourable remodelling of left ventricular (LV) structure and function. The latter has become more challenging among elderly patients, particularly following trans-catheter aortic valve implantation (TAVI). Precise understanding of myocardial adaptation to pressure and volume overloading and its responses to valve surgery requires comprehensive assessments from aortic valve energy loss, valvular-vascular impedance to myocardial activation, force-velocity relationship, and myocardial strain. LV hypertrophy and myocardial fibrosis remains as the structural and morphological focus in this endeavour. Early intervention in asymptomatic aortic stenosis or regurgitation along with individualised management of hypertension and atrial fibrillation is likely to improve patient outcome. Physiological pacing via the His-Purkinje system for conduction abnormalities, further reduction in para-valvular aortic regurgitation along with therapy of angiotensin receptor blockade will improve patient outcome by facilitating hypertrophy regression, LV coordinate contraction, and global vascular function. TAVI leaflet thromboses require anticoagulation while impaired access to coronary ostia risks future TAVI-in-TAVI or coronary interventions. Until comparable long-term durability and the resolution of TAVI related complications become available, SAVR remains the first choice for lower risk younger patients.

Reflections on the era of valvular intervention—The perspective of surgeons / 中国胸心血管外科临床杂志

@#In recent years, the number of interventions for valvular heart disease has been increasing day by day, and it has become a hot topic in the field of cardiovascular surgery. Given the aging global population and trends in the prevalence of valvular disease and the broadening of indications for transcatheter aortic valve replacement (TAVR), a breakthrough of 130 000 TAVR procedures is expected by 2026. In the new technology development period, the development potential and technical advantages of heart valve interventional therapy should be faced squarely. This paper focuses on key issues such as comparison of outcomes after TAVR versus surgical aortic valve replacement (SAVR), prosthetic valve endocarditis after TAVR, and broadening of indications for TAVR, as well as recommendations on how surgeons face the era of TAVR. We hope that this article will help and attract the attention of cardiac surgeons.

Implications of five-year outcomes of COMMENCE (SAVR) trial for aortic valve surgery in China / 中国胸心血管外科临床杂志

@#The advent of transcatheter aortic valve replacement (TAVR) has brought up a new treatment option for patients with severe aortic valve disease. However, with the continuous expansion of surgical indications, problems such as structural valve deterioration caused by biological prosthesis have become increasingly prominent. In the newly announced 5-year follow-up results of COMMENCE (SAVR) trial, the aortic bioprosthesis using the new RESILIA biotissue material demonstrated extraordinary clinical safety, efficacy and durability with zero structural valve deterioration and excellent hemodynamic evaluation results. As a result, patients with valvular heart disease have more diverse therapeutic options. However, the choice between surgical aortic valve replacement (SAVR) and TAVR, biological prosthesis and mechanical prosthesis, etc, has become more and more prominent, which brings more difficulties to clinicians. This paper reviews the research background, 5-year follow-up results of COMMENCE trial and the implications for aortic valve surgery in China.

Transcatheter aortic valve implantation: Present and development trend / 中南大学学报(医学版)

Currently,although surgical aortic valve replacement (SAVR) is still the golden standard in treatment of severe aortic stenosis according to the guideline,transcatheter aortic valve implantation (TAVI) is gradually becoming a common treatment for patients who are prohibitive or in high risk for SAVR.Recently,the valve manufacturers,including medical companies in China,are making their utmost to develop valve device,leading remarkable results achieved by TAVI.With the complications being controlled,TAVI displays promising future.It is likely that TAVI is expected to become a substitute for SAVR to treat patients with aortic stenosis or even aortic regurgitation.

Advanced age and the clinical outcomes of transcatheter aortic valve implan-tation / 老年心脏病学杂志（英文版）

Aortic valve stenosis (AS) is common in the elderly. Although surgical replacement of the valve has been the gold standard of management, many patients have been excluded from surgery because they were very old, frail, or had co-morbidities that increased operative risks. In the last decade, transcatheter aortic valve implantation (TAVI) has emerged as a new treatment option suitable for these patients. This article reviews the available literature on the role of TAVI in elderly patients with severe aortic stenosis. Published studies showed that elderly individuals who underwent TAVI experienced better in-hospital recovery, and similar short and mid-term mortality compared to those underwent surgical treatment of AS. However, long-term outcomes of TAVI in elderly patients are still unknown. The available data in the literature on the ef-fect of advanced age on clinical outcomes of TAVI are limited, but the data that are available suggest that TAVI is a beneficial and tolerable procedure in very old patients. Some of the expected complications after TAVI are reported more in the oldest patients such as vascular in-jures. Other complications were comparable in TAVI patients regardless of their age group. However, very old patients may need closer monitoring to avoid further morbidities and mortality.