scholarly journals Subclinical leaflet thrombosis is associated with impaired reverse remodelling after transcatheter aortic valve implantation

2019 ◽  
Vol 21 (10) ◽  
pp. 1144-1151 ◽  
Author(s):  
Bálint Szilveszter ◽  
Daniel Oren ◽  
Levente Molnár ◽  
Astrid Apor ◽  
Anikó I Nagy ◽  
...  

Abstract Aims Cardiac CT is increasingly applied for planning and follow-up of transcatheter aortic valve implantation (TAVI). However, there are no data available on reverse remodelling after TAVI assessed by CT. Therefore, we aimed to evaluate the predictors and the prognostic value of left ventricular (LV) reverse remodelling following TAVI using CT angiography. Methods and results We investigated 117 patients with severe, symptomatic aortic stenosis (AS) who underwent CT scanning before and after TAVI procedure with a mean follow-up time of 2.6 years after TAVI. We found a significant reduction in LV mass (LVM) and LVM indexed to body surface area comparing pre- vs. post-TAVI images: 180.5 ± 53.0 vs. 137.1 ± 44.8 g and 99.7 ± 25.4 vs. 75.4 ± 19.9 g/m2, respectively, both P < 0.001. Subclinical leaflet thrombosis (SLT) was detected in 25.6% (30/117) patients. More than 20% reduction in LVM was defined as reverse remodelling and was detected in 62.4% (73/117) of the patients. SLT, change in mean pressure gradient on echocardiography and prior myocardial infarction was independently associated with LV reverse remodelling after adjusting for age, gender, and traditional risk factors (hypertension, body mass index, diabetes mellitus, and hyperlipidaemia): OR = 0.27, P = 0.022 for SLT and OR = 0.22, P = 0.006 for prior myocardial infarction, OR = 1.51, P = 0.004 for 10 mmHg change in mean pressure gradient. Reverse remodelling was independently associated with favourable outcomes (HR = 0.23; P = 0.019). Conclusion TAVI resulted in a significant LVM regression on CT. The presence of SLT showed an inverse association with LV reverse remodelling and thus it may hinder the beneficial LV structural changes. Reverse remodelling was associated with improved long-term prognosis.

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Yuki Muto ◽  
Akiomi YOSHIHISA ◽  
Masayoshi Oikawa ◽  
ATSUSHI KOBAYASHI ◽  
Takayoshi Yamaki ◽  
...  

Background: Several studies have recently reported that transthyretin (ATTR) amyloidosis is present in patients with aortic stenosis (AS). We aimed to 1) examine the prevalence of ATTR amyloidosis in AS patients undergoing transcatheter aortic valve implantation (TAVI), 2) compare clinical characteristics between AS patients with and without ATTR, and 3) identify predictors of ATTR amyloidosis in AS patients. Methods and Results: We prospectively analyzed consecutive 32 patients with severe AS who underwent screening tests for ATTR in prior to TAVI. To detect ATTR, we performed cardiac technetium-99m pyrophosphate ( 99m Tc-PYP) scintigraphy in 24 patients and biopsies of fat tissue from the puncture site in 24 patients. Of 32 AS patients who were screened for ATTR, 6 (18.8%) patients were diagnosed as ATTR by cardiac 99m Tc-PYP scintigraphy (n=2) and fat biopsy (n=5). Compared with non-ATTR patients, ATTR patients presented higher levels of B-type natriuretic peptide (BNP, 242.3 vs. 1101.4 ng/ml, P=0.004), lower left ventricular ejection fraction (LVEF, 62.3 vs. 45.5%, P=0.002) and lower mean pressure gradient of AS (50.2 vs. 32.0 mmHg, P=0.016). In contrast, age, sex, STS score, clinical frailty scale, prevalence of chronic kidney disease and atrial fibrillation, and levels of hemoglobin, albumin, estimated glomerular filtration rate and troponin I were comparable between the two groups. Other echocardiographic parameters including interventricular septal wall thickness, posterior wall thickness and aortic valve area did not differ between the two groups. To detect ATTR among AS patients, receiver operating characteristic (ROC) analysis demonstrated that area under the curve of BNP, LVEF, and mean pressure gradient was 0.814, 0.766 and 0.846, respectively. Although TAVI was successfully completed in all patients, and there was no procedural complication in both groups, one of ATTR patients re-hospitalized due to decompensated heart failure 3 weeks after TAVI. Conclusion: In AS patients undergoing TAVI, especially in cases of low-flow low-gradient pattern and high BNP levels, screening of ATTR should be considered. In this population, cardiac 99m Tc-PYP scintigraphy and fat biopsy are useful to detect latent ATTR non-invasively.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
P Lantelme ◽  
A Bisson ◽  
T Lacour ◽  
J Herbert ◽  
F Ivanes ◽  
...  

Abstract Background The significance and the management of coronary artery disease (CAD) are disputed in patients treated by transcatheter aortic valve implantation (TAVI). In the presence of a significant CAD eligible for percutaneous coronary intervention (PCI), the issue of the timing of PCI relative to TAVI is unsettled. To answer this question, the present study aimed at comparing the short-term and long-term outcome in patients treated by staged PCI within a 90-day time interval before or after TAVI. Methods Based on the French administrative hospital-discharge database, the study collected information for all consecutive patients treated with TAVI between 2014 and 2018. Patients treated with PCI in the preceding 90 days before the TAVI procedure (pre-TAVI PCI) or subsequent 90 days after the TAVI procedure (post-TAVI PCI) were included. All-cause mortality, cardiovascular mortality, stroke, myocardial infarction and a combined cardiovascular endpoint were assessed at 30 days after the last procedure (short-term) and during the whole follow-up (long-term). Propensity score matching was used for the analysis of outcomes. Results 8613 patients met the inclusion criteria with a vast majority of pre-TAVI PCI patients (N=8324) as opposed to post-TAVI PCI (N=229). After propensity score matching, 2 groups of 227 patients with comparable characteristics were obtained. At 30 days, no significant difference was observed for any of the outcome tested with the exception of myocardial infarction more frequent in post-TAVI PCI (OR 2.43 [1.17–5.07]). After a mean [SD] follow-up of 459 [569] days, all outcomes were identical between subgroups. The figure below illustrates the Kaplan Meier curve for all-cause mortality. Conclusions Our study based on a French nationwide database shows that PCI is performed pre-TAVI in a majority of cases, with no significant impact on outcome. Deferring PCI after TAVI seems safe and may provide an opportunity to make the decision on more objective parameters while the stenosis has been removed (such as FFR or IFR). In any case, the timing of PCI relative to TAVI does not seem to represent a concern and should be decided on an individual basis. Figure 1 Funding Acknowledgement Type of funding source: None


Author(s):  
Johannes Rotta Detto Loria ◽  
Holger Thiele ◽  
Mohamed Abdel-Wahab

Abstract Background Fatal thrombo-embolic events like cerebral stroke or myocardial infarction are rare complications of prosthetic heart valve leaflet thrombosis. Nevertheless, prevention and management of leaflet thrombosis is gaining increased attention, particularly with the widespread adoption of transcatheter heart valves. Case summary We herein present the case of a 79-year-old man who had undergone a transcatheter aortic valve implantation procedure. Seven months later, he presented with a non-ST-segment elevation myocardial infarction. Coronary angiography did not reveal obstructive lesions. A dedicated cardiac computed tomography scan showed thrombosis of both right- and non-coronary leaflets of the prosthetic aortic valve, while prosthetic valve function was normal on echocardiography. Transmural myocardial infarction lesions in the midventricular and apical inferior wall were detected by cardiac magnetic resonance imaging. Discussion Subclinical leaflet thrombosis of prosthetic aortic valves is a common finding. In this case report, we show that myocardial infarction presumably due to leaflet thrombosis was the first symptom in an otherwise asymptomatic patient. This finding raises the question of the validity in distinguishing between subclinical and clinical leaflet thrombosis based on prosthetic valve function.


Author(s):  
Eliano Pio Navarese ◽  
Leonardo Grisafi ◽  
Enrico Spinoni ◽  
Marco Giovanni Mennuni ◽  
Andrea Rognoni ◽  
...  

Background. The optimal pharmacological therapy after transcatheter aortic valve implantation (TAVI) remains uncertain. We compared efficacy and safety of various antiplatelet and anticoagulant approaches after TAVI by a network meta-analysis. Methods. A total of 14 studies (both observational and randomized) were considered, with 24,119 patients included. Primary safety endpoint was the incidence of any bleeding complications during follow-up. Secondary safety endpoint was major bleeding. Efficacy endpoints were stroke, myocardial infarction and cardiovascular mortality. A frequentist network meta-analysis was conducted with a random-effects model. The following strategies were compared: dual antiplatelet therapy (DAPT), single antiplatelet therapy (SAPT), oral anticoagulation (OAC), OAC+SAPT. Mean follow-up was 15 months. Results. In comparison to DAPT, SAPT was associated with a 44% risk reduction of any bleeding (OR, 0.56 [95% CI, 0.39-0.80]). SAPT was ranked as the safest strategy for the prevention of any bleeding (P-score, 0.704), followed by OAC alone (P-score, 0.476) and DAPT (P-score, 0.437). Consistent results were observed for major bleeding. The incidence of cardiovascular death and secondary ischemic endpoints did not differ among the tested antithrombotic approaches. In patients with indication for long-term anticoagulation, OAC alone showed similar rates of stroke (OR 0.92 [95% CI 0.41-2.05], p=0.83) and reduced occurrence of any bleeding (OR 0.49 [95% CI 0.37-0.66], p<0.01) vs OAC+SAPT. Conclusions. The present network meta-analysis supports after TAVI the use of SAPT in patients without indication for OAC and OAC alone in those needing long-term anticoagulation.


EP Europace ◽  
2020 ◽  
Vol 22 (Supplement_1) ◽  
Author(s):  
T J Carvalho Mendonca ◽  
L Patricio ◽  
M Oliveira ◽  
I Rodrigues ◽  
G Portugal ◽  
...  

Abstract Introduction Transcatheter aortic valve implantation (TAVI) is an established treatment in patients (P) with aortic stenosis. Despite the continuous developments of this procedure, high-grade conduction disturbances requiring permanent pacemaker (PPM) implantation is still a major and common complication of TAVI. Furthermore, long-term chronic right ventricular pacing has been associated with negative effects on ventricular function and heart failure (HF). Aim   to evaluate the long-term impact of PPM after TAVI focusing on mortality and HF hospitalization. Methods  We retrospectively examined P who underwent TAVI with a self-expanding valve from 2009 to 2018 at our institution. All P had pre-procedural clinical evaluation, including ECG, cardiac computed tomographic angiography and transthoracic echocardiography. P with previous PPM were excluded. Results  265P (57% male, mean age 81.4 years, 20% with left ventricular ejection fraction &lt;40%) were analysed. Mean STS score and mean Euroscore II were 6.33% and 7.07%, respectively. Mean transvalvular gradient was 52.78 mmHg and mean aortic valve area 0.67 cm2. Forty-seven P (17%) underwent PPM implantation during the first 30 days after TAVI. P requiring PPM had higher prevalence of diabetes mellitus, chronic renal disease, atrial fibrillation and right bundle branch block. During a mean follow-up of 20.3 months, post-TAVI PPM was associated with similar mortality rate (29.8% vs. 25.6%, HR 1.28, 95% CI 0.72-2.29, p = 0.42) and similar cardiovascular mortality (9.8% vs. 6.4%, HR 0.72, 95% CI 0.21-2.4, p = 0.59) compared to P without PPM. There were no significant differences in HF hospitalization (4.9% vs. 2.4%, p = 0.47). Kaplan-Meier curves of total mortality and cardiovascular mortality according to the need for PPM post-TAVI were similar.  Conclusions  In P submitted to TAVI, PPM implantation is a relatively common finding, not associated with higher risk of total mortality, cardiovascular mortality or HF hospitalization in a long-term follow-up.


2020 ◽  
Vol 125 (8) ◽  
pp. 1209-1215 ◽  
Author(s):  
Nicola Corcione ◽  
Giuseppe Biondi-Zoccai ◽  
Paolo Ferraro ◽  
Alberto Morello ◽  
Sirio Conte ◽  
...  

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
G Avinee ◽  
E Durand ◽  
T Levesque ◽  
P Y Litzler ◽  
J N Dacher ◽  
...  

Abstract Background Since the first-in-man transcatheter aortic valve implantation (TAVI) performed in 2002, the number of procedures has dramatically increased. However, long-term data regarding outcome and valve durability remain poor. Purpose We aimed to evaluate the evolution of 30-day outcomes over years and long-term mortality and valve durability after TAVI. Methods All consecutive patients presenting with severe symptomatic aortic stenosis treated by TAVI in our center were included prospectively. Clinical and echocardiographic follow-up was performed at 30 days and annually thereafter. Survival curves were constructed using Kaplan-Meier analysis. We also evaluated valve durability according to the European standardized definition of structural valve deterioration. Results Between 2002 and 2018, 1530 consecutive patients underwent TAVI including 1285 (84.0%) patients via a femoral approach. A balloon-expandable transcatheter heart valve was predominantly used (1421 patients; 92.9%). The annual transfemoral approach rate increased progressively to reach 93.3%. Age of patients remained stable over time with a global mean age of 83.7±6.5 years old. Logistic EuroSCORE decreased from 49.2±8.2% to 14.3±8.6% (p<0.0001). Thirty-day mortality dramatically decreased below 3% since 2015 and was 0% in 2018. Similarly, major vascular complications decreased from 50.0% in the first year to less than 1% since 2017 (p=0.001). The length of hospital-stay progressively shortened up to a median of 2 days in 2018. The Kaplan-Meier survival estimation was 82.3%, 60.3%, 33.0%; 11.7% and 8.9% respectively at 1, 3, 5, 8 and 10 years. On long-term follow-up the mean aortic gradient remained unchanged (Figure), and only five patients presented a severe prosthetic valve deterioration. Among them, four patients successfully benefited from a valve in valve TAVI procedure. The competing risk analysis at 10 years estimates risk for severe and moderate-or-severe valve deterioration of 1.9±0.9% and 4.3±1.3% respectively. TEE mean transaortic gradient Conclusions Long-term (up to 10 years) follow-up of our large pioneer series of patients treated by TAVI shows a dramatic improvement of outcomes and no warning signs of valve deterioration suggesting very encouraging valve durability, using predominantly, a balloon expandable prosthesis. Further studies are warranted to study valve durability after TAVI before extension to lower risk patients.


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