Transseptal BATMAN for High-Risk Valve-in-Ring Procedures: A Case Series.

Valve-in-ring procedures represent a feasible solution for high-risk patients with surgical repair failure. The risk of left ventricular outflow tract obstruction increases the challenge, and transcatheter approaches to prevent it are technically demanding and often do not resolve it. We demonstrate the feasibility and safety of a transseptal balloon-assisted translocation of the anterior mitral leaflet for valve-in-ring implantation.

Comparison of acute versus stable coronary syndrome in patients treated with the Magmaris scaffold: Two-year results from the Magmaris Multicenter Italian Registry.

BACKGROUND: The magnesium Magmaris scaffold is the latest resorbable technology with low thrombogenicity, short scaffolding time, and almost complete resorption at 12 months (95 %). As compared with stable coronary artery disease (SCAD), acute coronary syndrome (ACS) is associated with increased risk of adverse clinical outcome after percutaneous coronary intervention. We analyzed the data of the Magmaris Multicenter Italian Registry to compare clinical outcomes in SCAD versus ACS patients. METHODS: We evaluated the 24-month rates of target lesion failure (TLF) and scaffold thrombosis (ST). Device implantation procedures were performed according to the manufacturer's recommendations (proper patient/lesion selection, pre-dilatation, proper scaffold sizing, and post-dilatation). Dual antiplatelet therapy was terminated after 12 months. RESULTS: Data from 207 patients (145 SCAD and 62 ACS) were collected from July 2016 to June 2018. The 2-year follow-up compliance was 92.8 % (192 patients). At 2 years, TLF rates were 7.4 % in the SCAD group and 8.8 % in the ACS group (p = 0.7); ST rates were 0 % in the SCAD group and 1.8 % in the ACS group (p = 0.1). CONCLUSION: The 2-year clinical results from the Magmaris Multicenter Italian Registry are favorable in terms of TLF and ST, indicating the safety and effectiveness of the Magmaris scaffold in both SCAD and ACS patients.

Sheathless use of Supera stent minimizes access complications in antegrade femoral puncture: Technical note with case series.

Antegrade femoral puncture (AFP) is the preferred strategy to treat lower limb obstructive disease. However, the presence of vascular calcification may be associated with procedure related adverse events, impairing endovascular device strategies. We describe a case series of superficial femoral and popliteal artery treatments by Supera stent implantation using a simple technique to significantly minimize the dimension of the antegrade femoral puncture from 6 to 4 French (Fr). All antegrade femoral punctures, crossing femoro-popliteal lesion and predilation were made with 4 Fr introducer. After preparation the Supera stent was navigated in sheathless fashion via 0.018-inch guidewire. Postdilation and final control were made replacing the 4 Fr introducer via the same guidewire. A good final result was achieved. Patients were discharged early without any complications. This minimally invasive technique in cases of infrainguinal peripheral artery disease could be feasible and effective for minimizing the risk of complications in patients with critical limb ischemia.

Sustained Safety and Efficacy of Magnesium Reabsorbable Scaffold: 2-Year Follow-Up Analysis From First Magmaris Multicenter Italian Registry.

BACKGROUND: Magnesium Reabsorbable Scaffold (MRS), is the newest reabsorbable technology with low thrombogenicity, short scaffolding time and almost complete resorption at 12-months (95%). Preliminary 12-months data in selected patients has shown that safety and efficacy are comparable with second generation Drug Eluting Stent (DES). Magmaris Multicenter registry showed 1-and 2-years clinical outcome on the first patients suitable for MRS enrolled in 4 Italian centers. METHODS: We evaluated 12- and 24-months clinical results in "real world" experience with Magnesium Reabosrbable Scaffold in terms of Target Lesion Failure (TLF) and scaffold thrombosis (ST). TLF is the primary endpoint and was defined as composite of cardiac mortality, target vessel myocardial infarction (MI), and ischemia-driven target lesion revascularization (ID-TLR). 4P's strategy (Patient/lesion selection, Pre-dilatation, Proper scaffold sizing and Post-dilatation) was strongly recommended. Dual Antiplatelet Therapy (DAPT) has been recommended for 12 months. RESULTS: Data from 207 patients, including initial experience, have been collected. Patients were 83% male, 20% diabetic and Acute Coronary Syndrome (ACS) in 23%. Lesion type were A-B1 in 54% and B2C in 46%. 4P's strategy was respected in 94%. Procedural success was 98% (2% peri-procedural MI). Compliance at 12-months follow up was 97.6%, TLF rate was 5.4% (including 1 case of myocardial infarction with late scaffold thrombosis (ST), all patients were successfully treated with in-scaffold segment DES implantation). At 24-months compliance was 92.8% (192 patients) and TLF was 7.4%. In the period between 13 and 24 months only 4 patients had TLF (including 1 case of myocardial infarction, all patients were successfully treated with in-scaffold segment DES implantation). None of the patients died for a cardiac reason. CONCLUSION: Our 2-years results confirm safety and efficacy showed at 12-months, reinforcing long-term performance with only 2% rate of TLF increase and no ST after 1 year.

SICI-GISE Position Document on the Use of the Magmaris Resorbable Magnesium Scaffold in Clinical Practice.

Bioresorbable scaffolds have emerged as a potential breakthrough for the treatment of coronary artery lesions. The need for drug release and plaque scaffolding is temporary, and leaving a permanent stent once the process of plaque recoil and vessel healing has ended might be superfluous or even deleterious exposing the patient to the risk of very late thrombosis, eliminating vessel reactivity, impairing non-invasive imaging and precluding possible future surgical revascularization. This long-term potential limitation of permanent bare metal stents might be overcome by using a resorbable scaffold. The metallic and antithrombotic properties make the resorbable magnesium scaffold an appealing technology for the treatment of coronary artery lesions. Notwithstanding this, its mechanical properties substantially differ from those of conventional bare metal stents, and previous experience using polymer-based scaffolds has shown that a standardized implantation technique and optimal patient and lesion selection are key factors for a successful implantation. A panel of expert cardiologists gathered to find a consensus on the best practices for Magmaris implantation in a selected patient population and to discuss the rationale for new potential future indications.

[SICI-GISE Position paper on the use of the magnesium bioresorbable scaffold Magmaris in clinical practice]. / Documento di posizione SICI-GISE sull'uso dello scaffold riassorbibile Magmaris nella pratica clinica.

Bioresorbable scaffolds have emerged as a potential breakthrough for the treatment of coronary artery lesions. The need for drug release and plaque scaffolding is temporary, and leaving a permanent stent once the process of plaque recoil and vessel healing has ended might be superfluous or even deleterious exposing the patient to the risk of very late thrombosis, eliminating vessel reactivity, impairing non-invasive imaging and precluding possible future surgical revascularization. This long-term potential limitation of permanent bare metal stents might be overcome by using a resorbable scaffold. The metallic and antithrombotic properties makes the resorbable magnesium scaffold an appealing technology for the treatment of coronary artery lesions. Notwithstanding this, its mechanical properties substantially differ from those of conventional bare metal stents, and previous experience using polymer-based scaffolds has shown that a standardized implantation technique and optimal patient and lesion selection are key factors for a successful implantation. A panel of expert cardiologists gathered to find a consensus on the best practices for Magmaris implantation in a selected patient population and to discuss the rationale for new potential future indications.

Safety and Efficacy of Polymer-Free Drug-Eluting Stents.

Background Polymer-free drug-eluting stents are based on different technologies for drug binding and release without the use of polymer coatings. It is unknown whether different polymer-free drug-eluting stents are comparable in terms of safety and efficacy profiles. Methods and Results Polymer-free BioFreedom biolimus-eluting stents (BES) and polymer-free Cre8 amphilimus-eluting stents (AES) were investigated in 2 recent multicenter registries including 2320 all-comer patients undergoing percutaneous coronary interventions at 22 Italian centers. Using propensity score matching, safety and efficacy outcomes were compared among 1280 patients (640 matched pairs) treated with BioFreedom BES or Cre8 AES. The primary end point was target lesion failure-a composite of cardiac death, target vessel myocardial infarction, and target lesion revascularization (TLR). At 1 year, target lesion failure occurred in 4.0% of BES and 4.2% of AES-treated patients (hazard ratio [HR] 0.98, 95% CI, 0.57-1.70). Risks of cardiac death (2.0% versus 2.1%; HR, 1.03; 95% CI, 0.47-2.26), target vessel myocardial infarction (0.8% versus 0.3%; HR, 1.89; 95% CI, 0.50-6.80), TLR (1.5% versus 2.2%; HR, 0.74; 95% CI, 0.34-1.62), and definite/probable stent thrombosis (0.9% versus 0.8%; HR, 1.17; 95% CI, 0.36-3.81) were comparable in patients treated with BioFreedom BES and Cre8 AES. A differential treatment effect by diabetes mellitus status was observed, indicating a benefit of AES in patients with diabetes mellitus ( P interaction=0.003). Conclusions The present study shows that BioFreedom BES and Cre8 AES have favorable and comparable safety and efficacy profiles in all-comer patients undergoing percutaneous coronary intervention. Further evaluation in large-scale, randomized trials are necessary to confirm our findings.

Polymer-free amphilimus-eluting stent versus biodegradable polymer biolimus-eluting stent in patients with and without diabetes mellitus.

OBJECTIVES: This study sought to compare clinical outcome of polymer-free amphilimus-eluting stent (PF-AES) versus biodegradable-polymer biolimus-eluting stent (BD-BES) in "all-comer" diabetes mellitus (DM) and non-DM patients who underwent percutaneous coronary intervention. BACKGROUND: The PF-AES has shown promising preliminary results in patients with DM. METHODS: Data from 2 multicentre-national registries (the ASTUTE and the INSPIRE-1) were used to analyse 1776 patients stratified in non-DM and DM. A double 1:1 propensity-score matched analysis (PF-AES vs. BD-BES) was performed in each group to adjust for clinical and procedural characteristics. Primary stent-efficacy and stent-safety endpoints were 1-year target-lesion revascularization (TLR) and target-lesion failure (TLF, composed of cardiac-death, target-vessel myocardial infarction and any TLR). RESULTS: After propensity-score matching, 850 patients were stratified as non-DM (425 PF-AES/425 BD-BES) and 480 as DM patients (240 PF-AES/240 BD-BES). Both TLF (20 of 425 [5%] vs. 24 of 425 [6%]; Plog-rank=0.527) and TLR (9 of 425 [2%] vs. 18 of 425 [4%]; Plog-rank=0.079) were similar between PF-AES and BD-BES in non-DM patients. In DM, TLF (12 of 240 [5%] vs. 31 of 240 [13%]; Plog-rank=0.002) and TLR (9 of 240 [4%] vs. 21 of 240 [9%]; Plog-rank=0.019) were significantly lower in PF-AES compared to BD-BES. Upon multivariate analysis, the most powerful predictors of TLF were chronic kidney disease in non-DM (OR 4.24, 95% CI: 2.07-8.70, p<0.001) and stent type in DM patients (OR 2.76, 1.36-5.56, p=0.005). CONCLUSIONS: This matched-cohort study suggests that PF-AES has better safety and efficacy profile than BD-BES in patients with DM.

Midterm and one-year outcome of amphilimus polymer free drug eluting stent in patients needing short dual antiplatelet therapy. Insight from the ASTUTE registry (AmphilimuS iTalian mUlticenTer rEgistry).

BACKGROUND: To assess clinical outcomes of patients needing short dual antiplatelet therapy (S-DAPT) after PCI with Cre8 polymer-free amphilimus eluting-stent (AES). The Cre8-AES with pure i-Carbofilm coating was supposed to induce faster stent endothelialization and reduce device thrombogenicity. METHODS: We performed a sub-analysis of unrestricted consecutive patients treated with Cre8-AES between August 2011 and January 2015. Two groups were formed: 1) patients discharged with S-DAPT (≤3-month), because of high bleeding risk or attending urgent non-cardiac surgery; and 2) patients discharged with Recommended DAPT duration (R-DAPT; ≥6-month). The primary ischemic- and bleeding-safety endpoints were Target Vessel Failure (TVF, composite endpoint of cardiac-death, target vessel-myocardial infarction and target vessel-revascularization), and major-bleeding (BARC ≥type-3a) at 6-month and 1-year. RESULTS: 106 patients (8.7%) were discharged with ≤3-month DAPT (83±19days; S-DAPT group) and 1102 patients (90.6%) with ≥6-month DAPT (342±62days; R-DAPT group). Between S-DAPT and R-DAPT groups no significant differences were observed in TVF at 1-year (5.7% vs 5.1%); 1-year BARC major bleeding rate was higher in S-DAPT group (3.4% vs 0.2%, p=0.007) with all bleeding events occurred within 3months. The landmark analysis (started at 90days, ended at 1year) showed no differences in BARC major bleedings between groups (0% vs. 0.3%). CONCLUSIONS: The results of this multicenter registry show that the use of Cre8 AES in patients needing short DAPT (≤3-month) was safe regarding ischemic events and could favor a reduction of bleeding events related to the recommended DAPT. A large randomized trial is necessary to support these preliminary findings.

One-year clinical outcome of amphilimus polymer-free drug-eluting stent in diabetes mellitus patients: Insight from the ASTUTE registry (AmphilimuS iTalian mUlticenTre rEgistry).

BACKGROUND: Despite several improvements in drug-eluting stent (DES) technology, patients with diabetes mellitus (DM) are affected by higher rate of adverse events after PCI with DES, mainly in terms of target lesion revascularization (TLR). The Cre8 stent, a polymer-free amphilimus-eluting stent (AES), has shown promising preliminary results in DM patients. The ASTUTE registry was conceived to assess clinical performance of this polymer-free AES in DM in a "real-world" multicenter-independent cohort of patients. METHODS: 1216 consecutive patients (1637 lesions) treated with Cre8 between August 2011 and January 2015 were retrospectively enrolled and divided in two groups: DM and non-DM patients. The primary and secondary endpoints were target lesion failure (TLF) and TLR at 1-year, respectively. RESULTS: 1-Year clinical outcome was available for 407 (80%) DM and 566 (84%) non-DM patients. Diabetic patients were more frequently affected by hypertension (p<0.001) and dyslipidemia (p<0.001) and more frequently dialyzed (p=0.010). At 1-year, TLF occurred in 50 (5.1%) overall patients, and was similar in DM and non-DM patients (4.9 vs 5.3%, respectively, p=0.788). The secondary endpoint (TLR) occurred in 3% of overall patients and similarly in DM and non-DM patients (3.7 vs 2.5%, respectively, p=0.273). Primary and secondary endpoints were similar also between insulin and non-insulin dependent DM patients. CONCLUSIONS: The results of this large, real-world, multicenter-independent registry show that Cre8 AES has similar safety and efficacy profile in DM as well as non-DM patients, reducing the adverse outcomes related to DM in patients undergoing PCI. A large randomized trial will be necessary to definitely prove these preliminary findings.

Directional atherectomy of a heavy calcified axillary artery stenosis inducing critical hand ischemia.

The presence of a severe calcified peripheral artery lesion is responsible for a poor response to balloon dilation, due to significant acute vessel recoil and frequent flow-limiting dissections requiring stent implantation. This possibility could be associated with very high compression and/or fracture rates particularly in cases of lesion located at the mobile joints. In this setting directional atherectomy offers the theoretical advantages of eliminating stretch injury on arterial walls and reducing the restenosis rate by direct plaque excision. In this report, we present a case of critical hand ischemia due to a heavily calcified axillary artery lesion managed by directional atherectomy and balloon angioplasty followed by immediate angiographic success and sustained clinical benefit up to 3 years of follow-up.

Acute Coronary Syndrome in Pre- and Post-partum Women - A Review.

Acute coronary syndrome (ACS) during pregnancy and the post-partum period are weighed by a high mortality rate for the mother and foetus. They should be considered as multifactorial diseases with a special role for sexual hormones. In this setting, ACS is mostly related to an early atherosclerotic disease, even if other conditions are responsible. Indeed, an important part is due to spontaneous coronary artery dissection, more common during delivery and the post-partum period. In the remaining situation, an isolated intracoronary thrombus or a normal angiographic pattern can be found at angiography. Pathophysiology is still uncertain with different hypothetical mechanisms. Prompt diagnosis of ACS and aetiology are essential for an optimal therapeutic strategy. Difficulties in treatment management is a matter for debate, especially in pre-partum women. In the last two decades improvements of diagnostic tools, coronary angiography and subsequent percutaneous treatment have changed the natural history of this rare condition.

Improved survival in patients with chronic mild/moderate systolic heart failure followed up in a specialist clinic.

OBJECTIVE: To relate therapeutic issues, comorbidities and functional parameters to mortality/morbidity of mild/moderate heart failure patients. METHODS: From our heart failure clinic, 372 heart failure patients (269 men, aged 66 ± 11 years), with stable heart failure and ejection fraction 45% or less were recruited. Survival curves were estimated according to the Kaplan-Meier method. Associations of protective/risk factors with cardiovascular mortality/morbidity were also evaluated. RESULTS: One hundred and two patients (27%) died (aged 70 ± 10 years at diagnosis, 76 ± 10 at death) during follow-up (overall mortality at 60 months: 19.2%; mean follow-up period: 67 ± 44 months). Cardiovascular deaths were 64 (63% of total deaths, 44 men, age at diagnosis 70 ± 9). Cardiovascular mortality at 60 months was 12%; standardized mortality ratio was 5.9 for women and 6.8 for men. The remaining 38 patients (37% of total deaths, 30 men, age at diagnosis 70 ± 10) died of noncardiovascular causes. Overall, noncardiovascular mortality at 60 months was 7.2%; mean survival time from diagnosis to death was 63 ± 69 months (median 42, Q1 = 27.5, Q3 = 77.7). Average cardiovascular admission rate was 1.63 ± 1.84 admissions/patient. At multivariate analysis, only previous history of myocardial infarction [hazard ratio: 3.62 (1.70-7.73)], class of ejection fraction at diagnosis [hazard ratio: 0.36 (0.32-0.60)], acute cardiac decompensation at any time [hazard ratio: 1.55 (1.32-1.84)], implanted defibrillator [hazard ratio: 0.11 (0.01-0.83)] and use of statins [hazard ratio: 0.08 (0.007-0.42)] were independently associated with cardiovascular mortality. Factors associated to higher annual cardiovascular morbidity were age at diagnosis, chronic renal failure, diabetes, cardiac decompensation at any time, female sex and diuretic therapy. Angiotensin-converting enzyme (ACE) inhibitors and/or angiotensin-receptor-blockers reduced annual cardiovascular morbidity. CONCLUSION: Survival in mild/moderate heart failure patients has consistently improved. Further improvements are warranted in terms of morbidity reduction.

Hypotension during carotid artery stenting with severe aortic stenosis: the intra-aortic balloon pump option.

This case highlights the importance of intra-aortic balloon pump (IABP) during carotid artery stenting (CAS) in patients with severe aortic stenosis. We report the case of a patient with severe carotid artery disease and aortic stenosis who first underwent CAS using IABP and subsequently underwent aortic valve replacement. We conclude that IABP could be helpful in the staged treatment of patients with concomitant severe carotid artery disease and aortic valve disease.

A high carbohydrate meal yields a lower ischemic threshold than a high fat meal in patients with stable coronary disease.

OBJECTIVE: To assess the ischemic threshold and stress-induced left ventricular dysfunction after high fat (HFM) and high carbohydrate (HCM) meals in patients with stable coronary disease. METHODS: Twelve patients (68 ± 7 years) underwent stress (treadmill exercise testing) echocardiography after fasting (8h), after HFM and HCM (2h). Time to 1mm ST-segment depression (time to 1mm) and stress wall motion score index (WMSI) were evaluated. Before eating and just before exercise testing glucose, insulin, triglycerides, total cholesterol and FFA levels were measured. RESULTS: Results are expressed as medians (Q1-Q3). HFM did not affect exercise variables compared to fasting, whereas HCM reduced the ischemic threshold [time to 1mm from 376 (343-493) to 297 (180-420) s, p = 0.003]. Compared to fasting [1.47 (1.31-1.66)], stress WMSI was higher after HCM [1.56 (1.44-1.69)] (p = 0.04) but not after HFM [1.56 (1.30-1.63)]. Glycemia and insulinemia were significantly higher after HCM, compared to fasting and HFM. CONCLUSIONS: In patients with coronary disease, exercise testing after a high carbohydrate meal results in a lower ischemic threshold and greater ischemia magnitude. Conversely, compared to fasting, a high fat meal does not induce additional detrimental effects. Hyperglycemia and hyperinsulinemia were the only metabolic determinants identified as potential metabolic mechanisms of this phenomenon.

Circulating CD4+CD25hiCD127lo regulatory T-Cell levels do not reflect the extent or severity of carotid and coronary atherosclerosis.

OBJECTIVE: Regulatory T (Treg) cells play a protective role in experimental atherosclerosis. In the present study, we investigated whether the levels of circulating Treg cells relate to the degree of atherosclerosis in carotid and coronary arteries. METHODS AND RESULTS: We studied 2 distinct populations: (1) 113 subjects, selected from a free-living population (carotid study), in which we measured the intima-media thickness of the common carotid artery, as a surrogate marker of initial atherosclerosis; and (2) 75 controls and 125 patients with coronary artery disease (coronary study): 36 with chronic stable angina, 50 with non-ST-elevation acute coronary syndrome, 39 with ST-elevation acute myocardial infarction. Treg-cell levels were evaluated by flow cytometry (Treg cells identified as CD3(+)CD4(+)CD25(high)CD127(low)) and by mRNA expression of forkhead box P3 or of Treg-associated cytokine interleukin 10. In the carotid study, no correlation was observed between Treg-cell levels and intima-media thickness. No differences in Treg-cell levels were observed comparing rapid versus slow intima-media thickness progressors from a subgroup of patients (n=65), in which prospective data on 6-year intima-media thickness progression were available. In the coronary group, Treg-cell levels were not altered in chronic stable angina patients. In contrast, nonunivocal variations were observed in patients suffering an acute coronary syndrome (with a Treg-cell increase in ST-elevation acute myocardial infarction and a Treg-cell decrease in non-ST-elevation acute coronary syndrome patients). CONCLUSIONS: The results suggest that determination of circulating Treg-cell levels based on flow cytometry or mRNA assessment is not a useful indicator of the extent or severity of atherosclerosis.