Cerebral Microbleeds During Transcatheter Aortic Valve Replacement: A Prospective Magnetic Resonance Imaging Cohort.

BACKGROUND: Cerebral microbleeds (CMBs) have been observed in healthy elderly people undergoing systematic brain magnetic resonance imaging. The potential role of acute triggers on the appearance of CMBs remains unknown. We aimed to describe the incidence of new CMBs after transcatheter aortic valve replacement (TAVR) and to identify clinical and procedural factors associated with new CMBs including hemostatic measures and anticoagulation management. METHODS: We evaluated a prospective cohort of patients with symptomatic aortic stenosis referred for TAVR for CMBs (METHYSTROKE [Identification of Epigenetic Risk Factors for Ischemic Complication During the TAVR Procedure in the Elderly]). Standardized neurologic assessment, brain magnetic resonance imaging, and analysis of hemostatic measures including von Willebrand factor were performed before and after TAVR. Numbers and location of microbleeds on preprocedural magnetic resonance imaging and of new microbleeds on postprocedural magnetic resonance imaging were reported by 2 independent neuroradiologists blinded to clinical data. Measures associated with new microbleeds and postprocedural outcome including neurologic functional outcome at 6 months were also examined. RESULTS: A total of 84 patients (47% men, 80.9±5.7 years of age) were included. On preprocedural magnetic resonance imaging, 22 patients (26% [95% CI, 17%-37%]) had at least 1 microbleed. After TAVR, new microbleeds were observed in 19 (23% [95% CI, 14%-33%]) patients. The occurrence of new microbleeds was independent of the presence of microbleeds at baseline and of diffusion-weighted imaging hypersignals. In univariable analysis, a previous history of bleeding (P=0.01), a higher total dose of heparin (P=0.02), a prolonged procedure (P=0.03), absence of protamine reversion (P=0.04), higher final activated partial thromboplastin time (P=0.05), lower final von Willebrand factor high-molecular-weight:multimer ratio (P=0.007), and lower final closure time with adenosine-diphosphate (P=0.02) were associated with the occurrence of new postprocedural microbleeds. In multivariable analysis, a prolonged procedure (odds ratio, 1.22 [95% CI, 1.03-1.73] for every 5 minutes of fluoroscopy time; P=0.02) and postprocedural acquired von Willebrand factor defect (odds ratio, 1.42 [95% CI, 1.08-1.89] for every lower 0.1 unit of high-molecular-weight:multimer ratio; P=0.004) were independently associated with the occurrence of new postprocedural microbleeds. New CMBs were not associated with changes in neurologic functional outcome or quality of life at 6 months. CONCLUSIONS: One out of 4 patients undergoing TAVR has CMBs before the procedure and 1 out of 4 patients develops new CMBs. Procedural or antithrombotic management and persistence of acquired von Willebrand factor defect were associated with the occurrence of new CMBs. REGISTRATION: URL: https://www. CLINICALTRIALS: gov; Unique identifier: NCT02972008.

Transcatheter Aortic Valve Replacement in Bicuspid Aortic Valve Stenosis.

After 15 years of successive randomized, controlled trials, indications for transcatheter aortic valve replacement (TAVR) are rapidly expanding. In the coming years, this procedure could become the first line treatment for patients with a symptomatic severe aortic stenosis and a tricuspid aortic valve anatomy. However, randomized, controlled trials have excluded bicuspid aortic valve (BAV), which is the most frequent congenital heart disease occurring in 1% to 2% of the total population and representing at least 25% of patients 80 years of age or older referred for aortic valve replacement. The use of a less invasive transcatheter therapy in this elderly population became rapidly attractive, and approximately 10% of patients currently undergoing TAVR have a BAV. The U.S. Food and Drug Administration and the "European Conformity" have approved TAVR for low-risk patients regardless of the aortic valve anatomy whereas international guidelines recommend surgical replacement in BAV populations. Given this progressive expansion of TAVR toward younger and lower-risk patients, heart teams are encountering BAV patients more frequently, while the ability of this therapy to treat such a challenging anatomy remains uncertain. This review will address the singularity of BAV anatomy and associated technical challenges for the TAVR procedure. We will examine and summarize available clinical evidence and highlight critical knowledge gaps regarding TAVR utilization in BAV patients. We will provide a comprehensive overview of the role of computed tomography scans in the diagnosis, and classification of BAV and TAVR procedure planning. Overall, we will offer an integrated framework for understanding the current role of TAVR in the treatment of bicuspid aortic stenosis and for guiding physicians in clinical decision-making.

Balloon-Expandable Versus Self-Expanding Transcatheter Aortic Valve Replacement: A Propensity-Matched Comparison From the FRANCE-TAVI Registry.

BACKGROUND: No randomized study powered to compare balloon expandable (BE) with self expanding (SE) transcatheter heart valves (THVs) on individual end points after transcatheter aortic valve replacement has been conducted to date. METHODS: From January 2013 to December 2015, the FRANCE-TAVI nationwide registry (Registry of Aortic Valve Bioprostheses Established by Catheter) included 12 141 patients undergoing BE-THV (Edwards, n=8038) or SE-THV (Medtronic, n=4103) for treatment of native aortic stenosis. Long term mortality status was available in all patients (median 20 months; interquartile range, 14 to 30). Patients treated with BE-THV (n=3910) were successfully matched 1:1 with 3910 patients treated with SE-THV by using propensity score (25 clinical, anatomical, and procedural variables) and by date of the procedure (within 3 months). The first coprimary outcome was ≥ moderate occurrence of paravalvular regurgitation or in-hospital mortality, or both. The second coprimary outcome was 2-year all-cause mortality. RESULTS: In propensity-matched analyses, the incidence of the first coprimary outcome was higher with SE-THV (19.8%) compared with BE-THV (11.9%; relative risk, 1.68 [95% CI, 1.46-1.91]; P<0.0001). Each component of the outcome was also higher in patients receiving SE-THV: ≥ moderate paravalvular regurgitation (15.5% versus 8.3%; relative risk, 1.90 [95% CI, 1.63-2.22]; P<0.0001) and in hospital mortality (5.6% versus 4.2%; relative risk, 1.34 [95% CI, 1.07-1.66]; P=0.01). During follow up, all cause mortality occurred in 899 patients treated with SE-THV (2-year mortality, 29.8%) and in 801 patients treated with BE-THV (2-year mortality, 26.6%; hazard ratio, 1.17 [95% CI, 1.06-1.29]; P=0.003). Similar results were found using inverse probability of treatment weighting using propensity score analysis. CONCLUSION: The present study suggests that use of SE-THV was associated with a higher risk of paravalvular regurgitation and higher in-hospital and 2-year mortality compared with use of BE-THV. These data strongly support the need for a randomized trial sufficiently powered to compare the latest generation of SE-THV and BE-THV. CLINICAL TRIAL REGISTRATION: https://www.clinicaltrials.gov. Unique identifier: NCT01777828.

A dedicated Y-shaped percutaneous ECMO cannula for femoral 2-in-1 vascular access during high-risk procedures.

High-risk transcatheter procedures requiring hemodynamic support are growing and require multiple vascular access that may be challenging in cases of peripheral artery disease or lack of radial access and exposure to a higher risk of vascular complications. We report the novel utilization of a Y-shaped arterial extracorporeal membrane oxygenation (ECMO) cannula used as a single femoral access to perform percutaneous coronary intervention (PCI) and aortography during high-risk transcatheter aortic valve replacement (TAVR). The utilization of this 2-in-1 ECMO cannula may simplify vascular access and reduce vascular and bleeding complications during high-risk ECMO-supported transcatheter procedures.

Transcatheter aortic valve replacement (TAVR) as bridge therapy restoring eligibility for liver transplantation in cirrhotic patients.

Severe aortic stenosis is a widespread valve disease, constituting a contraindication to organ transplantation due to cardiovascular morbidity and projected mortality. Mortality after conventional surgical aortic valve replacement in cirrhotic patients depends upon the Child-Pugh class. In the past few years, transcatheter aortic valve replacement has progressively become the treatment of choice for high-risk patients with severe aortic stenosis. Here, we report the cases of 3 cirrhotic patients who became eligible for liver transplantation after successful transcatheter aortic valve replacement as bridge therapy.

Von Willebrand Factor Multimers during Transcatheter Aortic-Valve Replacement.

BACKGROUND: Postprocedural aortic regurgitation occurs in 10 to 20% of patients undergoing transcatheter aortic-valve replacement (TAVR) for aortic stenosis. We hypothesized that assessment of defects in high-molecular-weight (HMW) multimers of von Willebrand factor or point-of-care assessment of hemostasis could be used to monitor aortic regurgitation during TAVR. METHODS: We enrolled 183 patients undergoing TAVR. Patients with aortic regurgitation after the initial implantation, as identified by means of transesophageal echocardiography, underwent additional balloon dilation to correct aortic regurgitation. HMW multimers and the closure time with adenosine diphosphate (CT-ADP), a point-of-care measure of hemostasis, were assessed at baseline and 5 minutes after each step of the procedure. Mortality was evaluated at 1 year. A second cohort (201 patients) was studied to validate the use of CT-ADP in order to identify patients with aortic regurgitation. RESULTS: After the initial implantation, HMW multimers normalized in patients without aortic regurgitation (137 patients). Among the 46 patients with aortic regurgitation, normalization occurred in 20 patients in whom additional balloon dilation was successful but did not occur in the 26 patients with persistent aortic regurgitation. A similar sequence of changes was observed with CT-ADP. A CT-ADP value of more than 180 seconds had sensitivity, specificity, and negative predictive value of 92.3%, 92.4%, and 98.6%, respectively, for aortic regurgitation, with similar results in the validation cohort. Multivariable analyses showed that the values for HMW multimers and CT-ADP at the end of TAVR were each associated with mortality at 1 year. CONCLUSIONS: The presence of HMW-multimer defects and a high value for a point-of-care hemostatic test, the CT-ADP, were each predictive of the presence of aortic regurgitation after TAVR and were associated with higher mortality 1 year after the procedure. (Funded by Lille 2 University and others; ClinicalTrials.gov number, NCT02628509.).

Von Willebrand factor as a biological sensor of blood flow to monitor percutaneous aortic valve interventions.

RATIONALE: Percutaneous aortic valve procedures are a major breakthrough in the management of patients with aortic stenosis. Residual gradient and residual aortic regurgitation are major predictors of midterm and long-term outcome after percutaneous aortic valve procedures. We hypothesized that (1) induction/recovery of high molecular weight (HMW) multimers of von Willebrand factor defect could be instantaneous after acute changes in blood flow, (2) a bedside point-of-care assay (platelet function analyzer-closure time adenine DI-phosphate [PFA-CADP]), reflecting HMW multimers changes, could be used to monitor in real-time percutaneous aortic valve procedures. OBJECTIVE: To investigate the time course of HMW multimers changes in models and patients with instantaneous induction/reversal of pathological high shear and its related bedside assessment. METHODS AND RESULTS: We investigated the time course of the induction/recovery of HMW multimers defects under instantaneous changes in shear stress in an aortic stenosis rabbit model and in patients undergoing implantation of a continuous flow left ventricular assist device. We further investigated the recovery of HMW multimers and monitored these changes with PFA-CADP in aortic stenosis patients undergoing transcatheter aortic valve implantation or balloon valvuloplasty. Experiments in the aortic stenosis rabbit model and in left ventricular assist device patients demonstrated that induction/recovery of HMW multimers occurs within 5 minutes. Transcatheter aortic valve implantation patients experienced an acute decrease in shear stress and a recovery of HMW multimers within minutes of implantation which was sustained overtime. In patients with residual high shear or with residual aortic regurgitation, no recovery of HMW multimers was observed. PFA-CADP profiles mimicked HMW multimers recovery both in transcatheter aortic valve implantation patients without aortic regurgitation (correction) and transcatheter aortic valve implantation patients with aortic regurgitation or balloon valvuloplasty patients (no correction). CONCLUSIONS: These results demonstrate that variations in von Willebrand factor multimeric pattern are highly dynamic, occurring within minutes after changes in blood flow. It also demonstrates that PFA-CADP can evaluate in real time the results of transcatheter aortic valve procedures.

Transcatheter aortic valve implantation for paradoxical low-flow low-gradient aortic stenosis patients.

OBJECTIVES: We compared the outcomes of transcatheter aortic valve implantation (TAVI) in three different aortic stenosis syndromes: paradoxical low-flow low-gradient aortic stenosis (PLFLG), high-gradient aortic stenosis (HGAS), and low ejection fraction low-gradient severe aortic stenosis (LEF-LG). BACKGROUND: Outcomes for PLFLG patients after TAVI procedure are not well known. METHODS: Between 2010 and 2013, patients with severe (indexed aortic valve area iAVA≤0.6 cm(2)/m(2)) symptomatic aortic stenosis were consecutively referred to our institution for TAVI because of multiple comorbidities and excessive surgical risk. About 262 patients were split into three groups as following, PLFLG: mean gradient MG≤40 mm Hg, stroke volume index SVI≤35 mL/m(2), ejection fraction EF≥55%, valvuloarterial impedance Zva>4.5 mm Hg/mL/m(2), maximal aortic jet velocity MaxV<4 m/s; LEF-LG: MG≤40 mm Hg, MaxV<4 m/s, EF≤50%, SVI≤35 mL/m(2); and HGAS: MaxV>4 m/s, MG>40 mm Hg, EF>55%. The primary endpoint of our study was to evaluate mid-term global and cardiovascular mortalities; secondary endpoints included recommended VARC-2 variables. RESULTS: PLFLG (n = 31) mid-term survival was similar to HGAS (n = 172) (mean follow-up = 13.2 months [4.6-26]). Conversely LEF-LG patients (n = 59) displayed significant higher rates of all-cause (P = 0.01) and cardiovascular mortalities (P = 0.05). Postprocedural outcomes (VARC-2 criteria) were similar in the PLFLG and HGAS groups except regarding major bleeding (P = 0.02), while the LEF-LG group had more congestive heart failure and a higher BNP before discharge (both P < 0.001) than the other groups. 30-days deaths were significantly more frequent in LEF-LG and PLFLG in comparison to HGAS (P = 0.03). CONCLUSION: As opposed to LEF-LG patients, mid-term prognosis after TAVI procedure in PLFLG patients is similar to HGAS patients despite higher perioperative mortality.

Postprocedural aortic regurgitation in balloon-expandable and self-expandable transcatheter aortic valve replacement procedures: analysis of predictors and impact on long-term mortality: insights from the FRANCE2 Registry.

BACKGROUND: Significant postprocedural aortic regurgitation (AR) is observed in 10% to 20% of cases after transcatheter aortic valve replacement (TAVR). The prognostic value and the predictors of such a complication in balloon-expandable (BE) and self-expandable (SE) TAVR remain unclear. METHODS AND RESULTS: TAVR was performed in 3195 consecutive patients at 34 hospitals. Postprocedural transthoracic echocardiography was performed in 2769 (92%) patients of the eligible population, and these patients constituted the study group. Median follow-up was 306 days (Q1-Q3=178-490). BE and SE devices were implanted in 67.6% (n=1872) and 32.4% (n=897). Delivery was femoral (75.3%) or nonfemoral (24.7%). A postprocedural AR≥grade 2 was observed in 15.8% and was more frequent in SE (21.5%) than in BE-TAVR (13.0%, P=0.0001). Extensive multivariable analysis confirmed that the use of a SE device was one of the most powerful independent predictors of postprocedural AR≥grade 2. For BE-TAVR, 8 independent predictors of postprocedural AR≥grade 2 were identified including femoral delivery (P=0.04), larger aortic annulus (P=0.0004), and smaller prosthesis diameter (P=0.0001). For SE-TAVR, 2 independent predictors were identified including femoral delivery(P=0.0001). Aortic annulus and prosthesis diameter were not predictors of postprocedural AR for SE-TAVR. A postprocedural AR≥grade 2, but not a postprocedural AR=grade 1, was a strong independent predictor of 1-year mortality for BE (hazard ratio=2.50; P=0.0001) and SE-TAVR (hazard ratio=2.11; P=0.0001). Although postprocedural AR≥grade 2 was well tolerated in patients with AR≥grade 2 at baseline (1-year mortality=7%), it was associated with a very high mortality in other subgroups: renal failure (43%), AR

Poor agreement between light transmission aggregometry, Verify Now P2Y12 and vasodilatator-stimulated phosphoprotein for clopidogrel low-response assessment: a potential explanation of negative results of recent randomized trials.

Clopidogrel low response as assessed by several different biological tests correlates with poor prognosis after percutaneous coronary intervention (PCI). However, recent randomized clinical trials (RCT) testing the strategy of individual antiplatelet therapy tailoring based on one sole test have all shown negative results. Poor correlation between the different tests may explain the difficulties of patient selection and identification of "true poor responders" to clopidogrel. In this prospective study, clopidogrel response was assessed in 100 consecutive patients between 18 and 24 hours after a 600 mg clopidogrel loading dose using three different tests: light transmission aggregometry with 10 µmol ADP (LTA, results expressed as platelet aggregation percentage: PAP), Verify Now P2Y12 (VN, results expressed as P2Y12 reaction unit: PRU) and vasodilatator-stimulated phosphoprotein (VASP, results expressed as platelet reactivity index: PRI). Patients under chronic clopidogrel therapy were excluded. The mean PAP, PRU and PRI values were 38.6%, 176.1 PRU and 52.4%, respectively. When clopidogrel response was analyzed as continuous variable, there was a good correlation between the different tests: LTA/VN (R(2 )= 0.642, p < 0.001), LTA/VASP (R(2 )= 0.409, p < 0.001) and VN/VASP (R(2 )= 0.616, p < 0.001). However, when clopidogrel response was analyzed as pre-specified cut-off points to define patients as "poor or good responders" (according to the literature: 50% PAP for LTA, 235 PRU for VN and 50% PRI for VASP), only 47% of the patients were defined as "good" or "poor responders" by the three tests. Altogether, 33% of the patients were defined as "poor responders" by only one test, 20% by two tests and only 16% by the three tests. The correlation between the different tests is good when clopidogrel response is analyzed as continuous variable. Each individual is however rarely (less than 50%) defined as "poor or good responder" by all the three tests when pre-specified cut-off values are used. A sole test might not be sufficient to manage antiplatelet therapy in an individual patient and these results may explain the results of recent RCT showing the lack of benefit of systematic antiplatelet therapy monitoring strategy.

Implantation of a Sapien XT aortic bioprosthesis through the left carotid artery.

Transcatheter aortic valve implantation (TAVI) is still under active investigation. When the femoral route is impossible for anatomic reasons, the transapical, transaxillary and direct aortic approaches have demonstrated their effectiveness. We report the successful implantation of a Sapien XT bioprosthesis with the NovaFlex catheter through a left carotid approach.

V stenting technique with covered stents for the management of ostial circumflex perforation: Good or bad idea?

We report the case of a redo Ross surgery complicated by an ostial left circumflex occlusion requiring emergent percutaneous coronary intervention. The latter was complicated by coronary perforation treated by two covered stents with V-stenting technique. After immediate success, the clinical course was marked by acute stent thrombosis requiring emergent coronary bypass. Learning objectives: Ostial left circumflex perforation is a rare and potentially fatal complication that is challenging to manage. V stenting technique with two covered stents could be used as a life-saving procedure, but is associated with a high thrombotic risk.

[TAVR : Imaging for an optimal femoral approach]. / TAVI : imagerie pour une gestion parfaite de la voie d'abord fémorale.

Both computed tomography (CT) angiography and vascular ultrasound have a major role before and during a transfemoral approach to TAVR. CT angiography will determine whether the patient is eligible for a femoral approach. Peri-procedural arterial ultrasound will be helpful to improve safety and optimize results during the femoral approach. Being able to interpret both of these imaging modalities is of paramount importance for any interventional cardiologist who practices structural interventions.

Correlates and causes of death in patients with severe symptomatic aortic stenosis who are not eligible to participate in a clinical trial of transcatheter aortic valve implantation.

BACKGROUND: Transcatheter aortic valve implantation is currently being evaluated in patients with severe aortic stenosis who are considered high-risk surgical candidates. This study aimed to detect incidences, causes, and correlates of mortality in patients ineligible to participate in transcatheter aortic valve implantation studies. METHODS AND RESULTS: From April 2007 to July 2009, a cohort of 362 patients with severe aortic stenosis were screened and did not meet the inclusion/exclusion criteria necessary to participate in a transcatheter aortic valve implantation trial. These patients were classified into 2 groups: group 1 (medical): 274 (75.7%): 97 (35.4%) treated medically and 177 (64.6%) treated with balloon aortic valvuloplasty; and group 2 (surgical): 88 (24.3%). The medical/balloon aortic valvuloplasty group had significantly higher clinical risk compared with the surgical group, with significantly higher Society of Thoracic Surgeons score (12.8±7.0 versus 8.5±5.1; P<0.001) and logistic European System for Cardiac Operative Risk Evaluation (EuroSCORE) (42.4±22.8 versus 24.4±18.1; P<0.001). The medical/balloon aortic valvuloplasty group had a higher New York Heart Association functional class, incidence of renal failure, and lower ejection fraction. During median follow-up of 377.5 days, mortality in the medical/balloon aortic valvuloplasty group was 102 (37.2%), and during median follow-up of 386 days, mortality in the surgical group was 19 (21.5%). Multivariable adjustment analysis identified renal failure (hazard ratio [HR]: 5.60), New York Heart Association class IV (HR: 5.88), and aortic systolic pressure (HR: 0.99) as independent correlates for mortality in the medical group, whereas renal failure (HR: 7.45), Society of Thoracic Surgeons score (STS; HR: 1.09) and logistic EuroSCORE (HR: 1.45) were correlates of mortality in the in the surgical group. CONCLUSIONS: Patients with severe symptomatic aortic stenosis not included in transcatheter aortic valve implantation trials do poorly and have extremely high mortality rates, especially in nonsurgical groups, and loss of quality of life in surgical groups.

Integrilin in patients undergoing primary percutaneous coronary intervention for ST-elevation myocardial infarction.

BACKGROUND: The adjunctive use of eptifibatide in patients undergoing primary percutaneous coronary intervention (PCI) for ST-elevation myocardial infarction (STEMI) remains controversial. We therefore set out to determine the safety and efficacy of eptifibatide in this population. METHODS: The study comprised 857 consecutive patients who underwent primary PCI for STEMI at the Washington Hospital Center. Three hundred eighteen patients also received adjunctive therapy with eptifibatide. Patients who had received thrombolysis prior to undergoing cardiac catheterization were excluded. The primary end-point was all-cause mortality and the composite of all-cause mortality or Q-wave MI. The primary safety end-point was the rate of thrombolysis in myocardial infarction (TIMI) major bleeding. RESULTS: The eptifibatide group was younger, had a higher body mass index, and a lower proportion of patients with systemic hypertension, diabetes mellitus, previous history of ischemic heart disease, coronary revascularization, and congestive heart failure. This cohort also used bivalirudin less often (23.3% vs. 72%; P < 0.001). Following multivariable analysis, the eptifibatide group had a significantly lower rate of all-cause mortality (hazard ratio 0.55; 95% confidence interval 0.34-0.89; P = 0.01) and the composite of all-cause mortality or Q-wave MI (hazard ratio 0.59; 95% confidence interval 0.37-0.95; P = 0.03) at 6 months. The rate of TIMI major bleeding was similar in both groups (hazard ratio 0.54; 95% confidence interval 0.25-1.17; P = 0.12). CONCLUSION: The adjunctive use of eptifibatide in patients presenting with STEMI may be associated with improved clinical outcomes. (J Interven Cardiol 2011;24:351-356).

Do patients with drug-eluting stent thrombosis have a similar prognosis to patients presenting with st-Elevation myocardial infarction of de novo lesions?

BACKGROUND: Despite significant advances in stent technology and pharmacotherapy, drug-eluting stent thrombosis (DES-ST) remains a major complication of percutaneous coronary intervention (PCI) and commonly presents as ST-elevation myocardial infarction (STEMI). There are currently little data comparing the in-hospital outcomes of patients presenting with STEMI due to DES-ST with those due to de novo coronary artery disease (CAD). METHODS: Our study comprised 985 consecutive patients who underwent primary PCI for STEMI, 102 of whom were diagnosed as having a definite DES-ST. The primary end-point was the in-hospital composite of death or recurrent myocardial infarction (MI). The secondary end-point was the in-hospital maximum rise in creatine kinase (myocardial band [MB] fraction) and troponin I. RESULTS: The DES-ST group had a higher proportion of patients with diabetes mellitus, hypercholesterolemia, history of ischemic heart disease, coronary revascularization, and chronic renal impairment. The adjusted primary end-point was higher in the DES-ST cohort (12.7% vs. 7.4%; P = 0.05). The 2 cohorts did not differ in the secondary end-point. The independent predictors of the primary end-point were age (hazard ratio [HR]= 1.04; 95% confidence interval [CI]= 1.01 - 1.06; P = 0.005), cardiogenic shock (HR = 11.5; 95% CI = 6.38 - 20.07, P < 0.001), and lesions involving the left anterior descending coronary artery (HR = 1.8; 95% CI = 1.03 - 3.13, P = 0.04). DES-ST was not an independent predictor of the primary end-point (HR = 1.18; 95% CI = 0.53-2.63, P = 0.38). CONCLUSIONS: Patients with STEMI secondary to DES-ST have a poorer in-hospital outcome than do patients in whom STEMI is due to de novo CAD. This difference may be predominantly driven by differences in the baseline characteristics between these cohorts. (J Interven Cardiol 2011;24:320-325).

Ultrasound- Versus Fluoroscopy-Guided Strategy for Transfemoral Transcatheter Aortic Valve Replacement Access: A Systematic Review and Meta-Analysis.

[Figure: see text].

IMPELLA® or Extracorporeal Membrane Oxygenation for Left Ventricular Dominant Refractory Cardiogenic Shock.

Mechanical circulatory support (MCS) devices are effective tools in managing refractory cardiogenic shock (CS). Data comparing veno-arterial extracorporeal membrane oxygenation (VA-ECMO) and IMPELLA® are however scarce. We aimed to assess outcomes of patients implanted with these two devices and eligible to both systems. From 2004 to 2020, we retrospectively analyzed 128 patients who underwent VA-ECMO or IMPELLA® in our institution for refractory left ventricle (LV) dominant CS. All patients were eligible to both systems: 97 patients were first implanted with VA-ECMO and 31 with IMPELLA®. The primary endpoint was 30-day all-cause death. VA-ECMO patients were younger (52 vs. 59.4, p = 0.006) and had a higher lactate level at baseline than those in the IMPELLA® group (6.84 vs. 3.03 mmol/L, p < 0.001). Duration of MCS was similar between groups (9.4 days vs. 6 days in the VA-ECMO and IMPELLA® groups respectively, p = 0.077). In unadjusted analysis, no significant difference was observed between groups in 30-day mortality: 43.3% vs. 58.1% in the VA-ECMO and IMPELLA® groups, respectively (p = 0.152). After adjustment, VA-ECMO was associated with a significant reduction in 30-day mortality (HR = 0.25, p = 0.004). A higher rate of MCS escalation was observed in the IMPELLA® group: 32.3% vs. 10.3% (p = 0.003). In patients eligible to either VA-ECMO or IMPELLA® for LV dominant refractory CS, VA-ECMO was associated with improved survival rate and a lower need for escalation.