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Mini-invasive Surg 2022;6:3. 10.20517/2574-1225.2021.99 © The Author(s) 2022.
Open Access Review

Management of concomitant coronary artery disease and aortic valve stenosis in the era of transcatheter aortic valve treatment

1Department of Cardiovascular Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome 00168, Italy.

2Department of Cardiovascular and Pulmonary Sciences, Catholic University of the Sacred Heart, Rome 00168, Italy.

Correspondence to: Prof. Francesco Burzotta, Department of Cardiovascular Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, L.go A. Gemelli 1, Rome 00168, Italy. E-mail: francesco.burzotta@unicatt.it

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    Academic Editors: Andrea Scotti, Giulio Belli | Copy Editor: Yue-Yue Zhang | Production Editor: Yue-Yue Zhang

    © The Author(s) 2022. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, sharing, adaptation, distribution and reproduction in any medium or format, for any purpose, even commercially, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

    Abstract

    Severe calcific aortic stenosis (AS) and coronary artery disease (CAD) have common risk factors and are frequently encountered in the same patient in clinical practice. CAD has been reported in ≥ 50% of AS patients undergoing both surgical treatment and transcatheter aortic valve implantation (TAVI). In the last two decades, TAVI has been established as a less invasive alternative to surgery. Recently, more and more young and low surgical risk patients undergo TAVI. Despite the high prevalence of CAD in patients treated with TAVI, the management strategy of concomitant CAD in these patients remains an area of considerable uncertainty. This review provides an updated overview of the current knowledge about this topic and offers points for reflection about the best approach to use.

    INTRODUCTION

    Aortic valve stenosis (AS) is the most common valvular heart disease undergoing surgical treatment in developed countries[1]. Its prevalence increases exponentially with age, and up to 5% of people between 75 and 86 of age have a moderate to severe form[2]. There is evidence that risk factors for aortic stenosis are similar to those for atherosclerotic disease[2,3]. Consequently, coronary artery disease (CAD) is often concurrently found in patients presenting with severe AS, and its incidence increases with the age[4]. Surgical aortic valve replacement (SAVR) was the first treatment to increase survival in patients with severe aortic stenosis and was the only one for decades. Transcatheter aortic valve implantation (TAVI) has revolutionized the treatment of severe aortic stenosis, allowing many high-risk patients to receive a treatment, which increases life expectancy. The prevalence of CAD in TAVI candidates is estimated to be around 40%-75%[5]. In randomized clinical trials comparing TAVI to SAVR, there was a progressive reduction in the prevalence of CAD in TAVI candidates in parallel with lower surgical risk and younger age[6-11]. With the progressive reduction of age and surgical risk of patients who are candidates for TAVI, optimal management of concomitant coronary artery disease becomes crucial. Important unresolved questions are if, how, and when to treat coexisting coronary artery disease.

    PROGNOSTIC IMPACT OF CORONARY ARTERY DISEASE IN PATIENTS WITH AORTIC STENOSIS CANDIDATES FOR TREATMENT

    It is still unknown whether CAD can be considered a detrimental factor or just an innocent bystander marker of high risk. This is probably due to the heterogeneity of the definition of CAD and its composite endpoints, the small sample size, the limited use of physiological assessment through fractional flow reserve (FFR), the uncertain completeness of revascularization or coronary stenosis severity, and the limited follow-up duration of studies [Supplementary Table 1]. One of the main limitations of these studies is that they do not correctly differentiate patients for severity of coronary artery disease and different types of revascularization. Severity of CAD and its presentation could better stratify patient prognosis. In support of this thesis, other features have been variably associated with prognosis: a clinical presentation with acute coronary syndrome (ACS)[12], CAD severity[13], and incomplete revascularization with a high residual SYNTAX SCORE[13]. Moreover, in a single-center Polish registry, the presence of chronic total occlusion was associated with higher all-cause mortality rate in patients undergoing TAVI, but these patients had a more frequent history of stroke and chronic obstructive pulmonary disease[14]. Different meta-analyses on this topic showed conflicting results regarding the association between CAD and clinical outcomes post-TAVR[15-17].

    TREATMENT OF CORONARY ARTERY DISEASE IN PATIENTS WITH AORTIC STENOSIS CANDIDATES FOR TREATMENT

    The main question to be answered in each TAVI procedural planning is whether patients with established CAD should undergo coronary revascularization. Several observational and retrospective studies comparing TAVI vs. TAVI and percutaneous coronary intervention (PCI) in patients with CAD did not find a significant difference in terms of mortality [Supplementary Table 2]. This lack of evidence could also be related to the reasons mentioned above. Another limitation of these retrospective studies is the selection bias of candidates for revascularization: patients with more severe CAD are revascularized, while those with stenosis in distal vessels tend to be treated with medical therapy. In several studies, the presence of CAD increased the procedural risk of SAVR[18]. Moreover, a higher mortality was found in concomitant coronary artery bypass graft (CABG) + SAVR than in SAVR alone[19]. In all randomized trials[6-11] comparing TAVI to SAVR, PCI in addition to TAVI was less frequent compared to SAVR + CABG [Figure 1]. This trend reflects the approach recommended by the current guidelines[20,21] that suggest revascularization of the proximal coronary stenosis in TAVI candidates and recommend CABG in patients with a primary indication for SAVR. These recommendations are based mainly on retrospective studies and registries data. The ACTIVATION trial[22] was the first randomized trial to compare routine PCI and medical treatment in patients affected by severe AS and CAD undergoing to TAVI. This study showed no difference in the primary endpoints of death and re-hospitalization at one-year follow-up[23] between the two groups. Moreover, at one year follow-up, there was no evidence of a difference in the rates of stroke, myocardial infarction, or acute kidney injury, but there was a higher rate of any bleed in the PCI arm[23]. The SURTAVI trial[24] was the only randomized study to compare both percutaneous (TAVI + PCI) and surgical (SAVR + CABG) treatment strategies in patients with severe AS and no-complex CAD. At two-year follow-up, there was no significant difference in the primary endpoint (all-cause mortality or stroke). Similar results were obtained by the Observant study[25] (an Italian registry 2010-2012). In addition, a recent meta-analysis showed that a percutaneous strategy was comparable to a surgical one in patients with severe AS and CAD[26].

    Figure 1. Rate of coronary revascularization in patients undergoing aortic valve treatment.

    FUNCTIONAL GUIDED REVASCULARIZATION OF CONCOMITANT CORONARY ARTERY DISEASE IN PATIENTS WITH SEVERE AORTIC STENOSIS

    Functional guided revascularization with FFR has been shown to have numerous advantages compared to angiography-guided revascularization[27,28] and medical therapy alone[29]. However, even though the European Society of Cardiology guidelines on chronic coronary syndrome[30] recommend the use of functional assessment in patients with intermediate coronary artery stenosis, the European guidelines for the management of valvular heart disease[20] only recommend angiographic evaluation. The American guidelines on valvulopathies[21] consider the use of invasive coronary physiology in patients who are candidates for TAVI safe. The discordance between European and American guidelines[20] is related to the absence of randomized controlled trials on clinical outcome and the low reliability of physiological indices in severe aortic stenosis. In patients with severe aortic stenosis, there is a significant increase in resting coronary flow due to the hypertrophy of the left ventricle[31-35]. The augmented resting coronary flow cannot further increase during physical exercise (thus explaining discrepancy angina) and when vasodilators are administered during FFR assessment. Pesarini et al.[35], measuring FFR before and after TAVI, revealed that after prosthesis implantation negative baseline values became even more negative and positive ones became even more positive. Only 6% of lesions exhibited such a variation that resulted in a change of indication to treat. Despite the risk of FFR to underestimate some intermediate coronary lesions, in a single-center Italian registry[36], FFR-guided revascularization was superior to angio-guided revascularization at two-year follow-up. It has been shown that coronary flow during the wave-free period of diastole remains unchanged after TAVI[37]. Instantaneous wave-free ratio (iFR), an index independent of vasodilatation, is calculated during this period and does not vary significantly before and after TAVI[37]. However, in patients with severe AS, there is an increased resting coronary blood flow, which could affect currently validated thresholds for iFR. Yamanaka et al.[38] compared iFR and FFR with myocardial perfusion scintigraphy in patients affected by CAD and severe AS. They showed a good correlation between FFR/iFR and perfusion scintigraphy in identifying myocardial ischemia. Moreover, an optimal cut-off of 0.82 for the iFR was identified to indicate an FFR < 0.75 and myocardial ischemia on perfusion scintigraphy. The optimal cut-off of 0.82 for iFR in this setting of patients has been confirmed in other studies[39]. Recently, revascularization based on a “hybrid iFR-FFR” strategy has been proposed[40]. This strategy uses iFR as the primary choice to evaluate coronary stenosis and FFR evaluation for iFR values between 0.83 and 0.93[40]. The ongoing trials FAITAVI (Functional Assessment in TAVI), NOTION-3 (Revascularization in Patients Undergoing Transcatheter Aortic Valve Implantation), and TAVI-PET (Correlation of FFR and iFR With Cardiac PET Perfusion in Patients With Severe Aortic Valve Stenosis) will provide information to comprehend the role of FFR in this group of patients.

    THE OPTIMAL TIMING OF REVASCULARIZATION

    American guidelines[21] recommend PCI before TAVI in the case of left main disease and significant proximal CAD. Instead, European guidelines[20] do not recommend specific timing for coronary revascularization but suggest basing a decision on the clinical presentation, coronary anatomy, and extent of myocardial at risk. While performing PCI before TAVI reduces any ischemic events in the case of periprocedural complications and avoids difficult coronary engagement after implantation of the prosthesis, performing TAVI before PCI allows evaluating symptoms and hemodynamic significance of coronary lesions after the resolution of the aortic stenosis [Table 1]. Severe aortic stenosis was initially considered a contraindication for PCI. Instead, Goel et al.[41] showed that this was feasible without an increase in mortality. A recent multicenter study highlighted that PCI before TAVI is currently performed successfully in most cases even in multivessel disease, left main disease, and calcific stenosis[42]. In the same study, the two-year rate of target vessel failure was low[42]. Regarding the disadvantages of performing PCI before TAVI, there is an increased risk of acute kidney injury, bleeding, and vascular complications[24,43,44]. Therefore, PCI before TAVI should be performed in the case of complex coronary stenosis with large myocardial area at risk, acute coronary syndromes, and even in the case of difficult coronary re-access after prosthesis implantation. With the improvement of techniques and experience of the operators, routinely performing PCI and TAVI in the same session has been proven to be safe and reduce hospitalization length[45] [Figure 2]. According to the literature, PBAV (percutaneous balloon aortic valvuloplasty) and PCI can be safely performed during the same procedure[46,47]. This approach can be used as a bridge to TAVI in patients with temporary TAVI contraindication. Small case series have shown the possibility of using Impella as an assistance during PBAV or PCI procedures in patients with severe aortic stenosis[48,49].

    Figure 2. A concomitant myocardial revascularization and transcatheter aortic valve implantation (TAVI). The aortography performed during TAVI procedure showed a double stenosis of right coronary artery confirmed by selective angiography and not revealed by computed tomography scan (A). The coronary artery stenosis was very tight; therefore, the percutaneous treatment was performed before the TAVI (B). After the percutaneous coronary intervention (PCI), a self-expandable valve was implanted (C).

    Table 1

    Timing of PCI in relation to TAVI

    AdvantagesDisadvantagesPreferred clinical scenario
    Staged pre-TAVI PCIEasier access to coronary arteries
    Improve coronary flow, preventing myocardial ischemia during ventricular pacing
    Risk of acute decompensation during PCI
    Left main and right coronary artery ostial lesions require special consideration because an implanted valve can crush the stent frame
    Increase vascular and bleeding complications due to dual antiplatelet therapy
    Acute coronary syndrome
    Severe left main stem lesions and proximal coronary lesions
    Complex coronary artery lesions
    Anatomical consideration (type of-valve, valve-in-valve procedure)
    Staged post-TAVI PCIImprove hemodynamic before PCI
    More accurate assessment of the functional severity of CAD
    Risk of ischemia during TAVI
    Cannulation of coronary artery and performing PCI may be more challenging
    Intermediate coronary artery lesions
    PCI and concomitant TAVIReduction of vascular complications
    Reduce costs of hospitalizations
    No delays in case of rescue/bail-out strategies if needed
    Increase volume of contrast
    Higher radiation dose
    Longer duration of the procedure
    Normal kidney function
    Simple coronary artery stenosis

    The strategy of performing PCI after TAVI is a recent approach [Figure 3]. The revascularization of coronary disease was an inclusion criterion of the first trial due to the fear of ischemic events during the procedure and the lack of knowledge regarding the possibility of selective cannulate coronary arteries ostia after TAVI. The major challenge of performing PCI in TAVI patients is selective cannulation of coronary ostia. This is an increasingly important problem given the progressive younger age of candidates for TAVI. A single-center study[50] identified that 5.3% of TAVR recipients underwent coronary angiography during a follow-up of about three years. The authors attributed this low incidence to two possible causes: a Heart Team-based pre-TAVR revascularization and a possible reduced recourse to coronary angiography in the case of ACS due to the numerous comorbidities of the patients. The main factors that influence engagement of coronary ostia in patients with TAVI are divided into three groups: anatomical, related to the prosthesis, and procedural[51]. Generally, greater height of the coronary arteries and augmented width of valsalva sinuses are associated with easier coronary ostia engagement. In fact, coronary ostia are not covered by valve skirt, thus it is not difficult to cannulate the ostium[51,52]. All studies that evaluated the coronary access in patients with TAVI demonstrated greater difficulty with Evolut than Sapien prostheses[51,53,54]. The reasons are to be found in the different conformation and size of the two main types of valve prostheses currently used[51]. The self-expanding valves (Evolut and Portico prostheses) are taller than balloon-expandable valves (Sapien prostheses) and extend beyond coronary ostia. Hence, if the neo-commissure of prosthesis is oriented in front of coronary ostium it could hinder selective coronary cannulation. Moreover, Sapien prostheses have wider dimensions of the stent frame cells in the upper row which help selective coronary cannulation[51,54]. Instead, procedural factors[53,55-57] are high prosthesis implantation and commissural orientation of transcatheter aortic valve. The RE-ACCESS study[53], a single-center prospective registry in which coronary angiography was routinely performed after TAVI, found that Evolut prosthesis, higher prosthesis-sinus of Valsalva relation, and low TAVI implantation depth were predictors of unsuccessful coronary cannulation. The ALIGN TAVR study[58] showed that orienting the Evolut delivery catheter with the flush port positioned at 3 o’clock and tracking the Evolut hat marker at the outer curve of the thoracic aorta reduced the incidence of severe coronary artery overlap from 38% to 24%. Tagliari et al.[59] performed an experiment using 3D models of the aorta showing a neo-commissural alignment technique with Portico prosthesis. The recent COMALIGN study[60] showed a more effective and patient-specific technique to achieve TAVI commissural alignment. This technique uses a patient-specific fluoroscopic projection in which the right and left coronary cusps (RCC/LCC) overlap. In this patient-specific fluoroscopic projection, the RCC/LCC commissure is directed to the right of the fluoroscopic image. The operator should use fluoroscopic markers that are specific for every device (Evolut, Acurate Neo, and Portico) and should orient one of the THV (transcatheter heart valve) commissures to the right of the screen in the RCC/LCC cusp overlap view. In this study, less than mild commissural misalignment was reached in 88% of patients.

    Figure 3. A staged post transcatheter aortic valve implantation (TAVI) myocardial revascularization. The coronary angiography showed a stenosis of the left anterior descending artery in the middle tract (A). The patient was admitted because of pulmonary edema due to severe aortic stenosis. The coronary stenosis is not a sub-occlusive stenosis, therefore we decided to performed TAVI (B) and after one month a percutaneous treatment of the coronary stenosis (C).

    Previous studies[57,58] have evidenced that there is still no technique that guarantees to reduce commissural misalignment using Sapiens valves, but the low stent frame profile and the wide cells of the top row of the SAPIEN 3 prosthesis makes commissural alignment less relevant for coronary artery access. Besides commissural orientation of transcatheter aortic valve, the height of prosthesis implantation is another procedural factor influencing coronary cannulation after TAVI. Although one study[57] estimated an approximately 10% incidence of unfavorable anatomy to cannulation in patients with Sapien valve (prosthesis frame above and commissural suture post in front of a coronary ostium), the SOURCE-3 trial[61] showed an excellent rate of selective coronary engagement and successful percutaneous coronary intervention in these patients. Cannulation of coronary ostia in patients with TAVI often requires the use of special techniques and catheters described in the literature[51,62,63]. In patients who have undergone SAVR, it is easier to perform coronary angiography because native leaflets are removed and surgical prosthesis is aligned to native commissures. At two years of follow-up, Ochiai et al.[64] demonstrated that there is no difference in terms of outcomes as long as timing of PCI in TAVI candidates is tailored on a single patient by the Heart Team. It should be noted that, in all patients who had to implant self-expanding valve, the Heart Team always chose to perform PCI before TAVI[64]. According to the current studies, the best approach is to customize revascularization timing considering clinical characteristics, type of transcatheter aortic valve chosen, and complexity of CAD. A recent multicenter registry found that unplanned PCI after TAVR is rare and its incidence declines over time after TAVR[65]. Moreover, in this study[66], the main indication to PCI was acute coronary syndrome in the first two years after TAVR. Multicenter registries[65-67] showed that coronary angiography and PCI in TAVI patients affected by acute coronary syndrome is usually successful but coronary ostia cannulation failure was associated with poorer outcomes. Although a difficult access to the coronaries after TAVR is a great concern, it may be even more difficult to engage the coronary ostia after TAVR-in-TAVR. Commissural alignment is not the only factor to be considered in this particular setting. Nai Fovino et al.[68] evidenced that female sex, reduced sinotubular junction diameter, implantation of supra-annular prosthesis, and reduced left coronary cannulation height are independent predictors of unfavorable coronary access after TAVR-in-TAVR.

    HYBRID APPROACHES

    In very high surgical risk patients with severe AS and CAD, not eligible for traditional percutaneous therapy, the use of off-pump coronary artery bypass (OPCAB) and TAVI has been proposed. OPCAB is a technique of surgical coronary revascularization without the use of cardiopulmonary bypass. Minimally invasive direct CABG (MIDCAB) is an even less invasive surgical technique used to treat a single vessel CAD (usually left anterior descending artery). Baumbach et al.[69], in a single-center prospective registry, compared outcomes of patients undergoing TAVI + OP/MIDCAB with those undergoing TAVI + PCI and SAVR + CABG. TAVI (58% transapical and 42% transaortic) + OP/MIDCAB was associated with the highest mortality and rehospitalization rate compared to TAVI (mainly transfemoral) + PCI (staged approach) and SAVR + CABG. This worrying in-hospital mortality rate for TAVI + OP/MIDCAB patients (18%) was likely due to the fact these patients were sicker and older compared to the SAVR + CABG ones; this procedure is more invasive than percutaneous treatments and probably requires a steeper learning curve. This mortality rate is comparable to the one previously reported for this particular hybrid procedure in a comparable patient population[70], but in another population of fewer patients there were no in-hospital deaths[71]. This difference is probably in relation with the patient condition and the surgeon’s skills. To reduce the complexity of the procedure, mortality, and complications, it has recently been proposed to perform first MIDCAB and in a subsequent hospitalization TAVI (staged approach)[72] [Table 2].

    Table 2

    Features of the main study on the hybrid approach off-pump coronary artery bypass and TAVI

    Number of patientsSurgical rik scoreTAVI approachesRevescularization characteristicsComplicationsIn-hospital mortality30 days mortalityLong term survival rate
    Baumbach et al.[69]5036.4 ± 22.4 (Euroscore I)Tao (21)
    TA (29)
    MIDCAB via left antero-lateral minithoracotomy in the case of single-vessel LAD or LCX artery disease;
    OPCAB via median sternotomy in the case of multi-vessel complex disease
    AKI stage II/III (5)
    Re-thoracotomy (5)
    Pericardial tamponade (1)
    Stroke (1)
    Periprocedural myocardial infarction (1)
    9 (18%)8 (16%)65.5% at 12 months
    Ahad et al.[70]7035.9 ± 21.9 (Logistic Euroscore)Tao (28)
    TA (42)
    MIDCAB (36; 51.4%)
    OPCAB (32; 45.7%)
    LIMA (66)
    RIMA (21)
    Vein (7)
    Radial artery (2)
    AKI stage II/III (6)
    Re-thoracotomy (6)
    Pericardial tamponade (1)
    Stroke (1)
    Periprocedural myocardial infarction (1)
    14 (20%)10 (14.3%)74.4% at 12 months
    68.4% at 24 months
    Mayr et al.[71]2016.1 (9.3-28.1) (Logistic EuroscoreTao (9)
    TA (5)
    TF (5)
    TSC (1)
    OPCAB (6)
    MIDCAB (14)
    LIMA (17)
    RIMA (6)
    Complete revascularization (75)
    AKI stage II/III (2)
    Re-thoracotomy (1)
    Pericardial tamponade (1)
    Stroke (0)
    Periprocedural myocardial infarction (0)
    0075% at 42 months
    Pirelli et al.[72]68 ± 3.3 (STS-score)TF (4)
    TA (1)
    Transinnominate (1)
    MIDCAB (6)
    Preceded by PCI and BAV in 3 cases
    Complete heart block (1)
    No neurological events or major vascular complications
    0
    0100% at 12 months
    Zubarevich et al.[77]10Mean logistic Euroscore (26.5% ± 12.3%), mean STS‐score (6.04% ± 1.6%)Tao (10)OPCAB (10)
    Complete revascularisation (7)
    LIMA‐LAD (9) LIMA‐D1 (1)
    Planned PCI (3)
    Acute kidney injury (2)
    Rethoracotomy (1)
    Pericardial effusion requiring thoracotomy (1)
    Reintubation 1 (10%)
    Septic shock 1 (10%)
    1 (10%)1 (10%)Missing data

    The use of minimally invasive valve surgery and PCI has been proposed as an alternative approach to concomitant CABG + SAVR. The aim of this approach is to prevent a standard median sternotomy. In relation to timing, there are two types of approaches, “staged” and “concomitant”. Santana et al.[73,74] demonstrated that a strategy of performing PCI with a median of 30 days before a minimally invasive aortic valve replacement was a safe and effective approach which permitted to reduce complications and length of hospital stay. The problems associated with the staged approach are the need to discontinue anti-platelets therapy during the perioperative period or the high risk of bleeding if the intervention is performed under anti-platelets therapy. In addition, the development of TAVI and the inferiority of PCI in the case of complex coronary anatomy has reduced enthusiasm for this approach. Brinster et al.[75], before the spread of hybrid operating rooms, demonstrated the feasibility of a same-day PCI approach followed by SAVR. George et al.[76] described the possibility of performing in the hybrid room first PCI followed by valve surgery (11 patients of 20 underwent SAVR). After four years there, was only one event (a stroke during hospitalization) in the absence of in-hospital mortality. Outcomes were comparable to those of traditional surgery [Table 3].

    Table 3

    Features of the main studies on hybrid approach, percutaneous coronary intervention, and surgical aortic valve replacement treatment

    Number of patientsPCI to surgery (Time)PCI vessels and type of interventionValveType of surgeryComplicationsIn-hospital mortality
    Santana et al.[74]12339 days (median)LAD (48%)
    LAD prox (27.6 %)
    LCX (32.5%)
    RCA (33.3%)
    RI (0.8%)
    Diagonal (5.7%)
    PCI 121
    POBA 2
    SAVR (123)Right anterior thoracotomyBlood transfusion 41,
    Reoperation for bleeding 1,
    Stroke 1,
    Dialysis 2
    30-day mortality 2 (1.6%)
    Brinster et al.[75]18< 1 day
    (12, same day but two stages)
    LAD (61%)
    LCX (27%)
    RCA (17%)
    PCI 18
    POBA 0
    SAVR (18)Right anterior thoracotomy8 blood transfusions,
    1 stroke
    1
    George et al.[76]26Simultaneously (one stage)Valve-PCI:
    RCA (25.7%);
    LCX (29.1%);
    LM (15.6%)
    LAD prox (10.6%)
    LAD mid distal (32.2%)
    Reoperative valve-PCI patient (14);
    Primary valve surgery (12) of these
    SAVR (11)
    Primary valve surgery:
    Hemisternotomy (2)
    Sternotomy (10)

    Reoperative valve surgery:
    Sternotomy (13)
    Right thoracotomy (1)
    Blood transfusion 1,
    Reoperation for bleeding 1,
    Stroke 1
    0

    CONCLUSION

    Coronary artery disease is a common finding in patients with degenerative aortic valve stenosis with a prevalence estimated around 40%-75%. The presence of CAD alone did not affect short-term mortality, while severe CAD was conversely associated with higher one-year mortality. Therefore, important unresolved questions are if, how, and when to treat coexisting CAD. According to current evidence, complete myocardial revascularization should no longer be considered an essential requirement for TAVI. The safety and efficacy of functional guided revascularization with FFR or iFR is under evaluation in on-going research. The timing of PCI in TAVI candidates should be established considering the complexity of the coronary anatomy, type of valve prosthesis, symptoms, and comorbidities of the patient. Furthermore, the progressive younger age of patient candidates for TAVI makes the possibility of re-accessing the coronary arteries increasingly important. Thus, further studies on increasing coronary re-access after TAVR and best timing of PCI in relation to TAVI are necessary. Hybrid procedures may be the best answer in some selected patients. The best management of this condition is paradigmatic of the modern cardiology approach that is founded on Heart Team decisions. Modern cardiology is evolving towards tailored therapies which need collaboration among medical specialties that were once divided.

    DECLARATIONS

    Authors’contributions

    Conception and design: Cangemi S

    Drafting the article: Cangemi S

    Final approval of the version to be published: Bianchini F, Trani C

    Analysis and interpretation: Romagnoli E, Bruno P

    Data collection: Burzotta F, Nesta M

    Critical revision of the article: Aurigemma C

    Availability of data and materials

    Not applicable.

    Financial support and sponsorship

    None.

    Conflicts of interest

    Aurigemma C, Burzotta F, Trani C received speaker’s fees from Abbott, Medtronic, and Abiomed. Other authors declared that there are no conflicts of interest.

    Ethical approval and consent to participate

    Not applicable.

    Consent for publication

    Not applicable.

    Copyright

    © The Author(s) 2022.

    Supplementary Materials

    Supplementary Materials

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    Cite This Article

    Cangemi S, Aurigemma C, Romagnoli E, Bianchini F, Bruno P, Nesta M, Burzotta F, Trani C. Management of concomitant coronary artery disease and aortic valve stenosis in the era of transcatheter aortic valve treatment. Mini-invasive Surg 2022;6:3. http://dx.doi.org/10.20517/2574-1225.2021.99

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