Clinical practice guideline for transcatheter versus surgical valve replacement in patients with severe aortic stenosis in Latin America.

In elderly (75 years or older) patients living in Latin America with severe symptomatic aortic stenosis candidates for transfemoral approach, the panel suggests the use of transcatheter aortic valve implant (TAVI) over surgical aortic valve replacement (SAVR). This is a conditional recommendation, based on moderate certainty in the evidence (⨁⨁⨁Ο).This recommendation does not apply to patients in which there is a standard of care, like TAVI for patients at very high risk for cardiac surgery or inoperable patients, or SAVR for non-elderly patients (eg, under 65 years old) at low risk for cardiac surgery.

One-Year Follow-Up Results From the Observational, Multicenter, Prospective, and Controlled Registry: The WALTZ All-Comers Study.

The aim of this study was to evaluate 1-year follow-up results in an all "comers" population treated with a new cobalt chromium bare-metal stent (BMS) design. Since August 2016 to March 2017, 201 (9.7% of screening population) consecutive patients undergoing coronary stent implantation in 11 centers in Argentina were prospectively included in our registry.

Second vs. first-generation drug-eluting stents in complex lesions subsets: 3 years' follow-up of ERACI IV study.

Background: Although percutaneous coronary intervention (PCI) with first-generation drug-eluting stents (DES-1) did not show a benefit in terms of death rate and myocardial infarction (MI) compared to bypass surgery (coronary artery bypass graft [CABG]), DES platforms have seen a remarkable improvement in the last few years, and a significant increase in their safety and efficacy was observed in randomized controlled trials and observational studies in comparison with DES-1 in patients with coronary artery disease (CAD). One-year results from the ERACI IV registry using a second-generation DES (DES-2) demonstrated significantly greater efficacy and safety in patients with multiple vessel CAD, including diabetics, compared to DES-1. Long-term results are yet unknown.

Second vs. First generation drug eluting stents in multiple vessel disease and left main stenosis: Two-year follow-up of the observational, prospective, controlled, and multicenter ERACI IV registry.

Objective: To compare second generation drug eluting stents (2DES) with first generation (1DES) for the treatment of patients (pts) with multiple coronary vessel disease (MVD).

Background: Although 2DES improved safety and efficacy compared to 1DES, MVD remains a challenge for percutaneous coronary interventions.

Methods: ERACI IV was a prospective, observational, and controlled study in pts with MVD including left main and treated with 2DES (Firebird 2, Microport).

Modifying angiographic syntax score according to PCI strategy: lessons learnt from ERACI IV Study.

In recent years an angiographic score was introduced in clinical practice to stratified different levels of risk after percutaneous coronary interventions (PCI) with drug eluting stents. The SYNTAX score (SS) classified patients in three different risk levels and was included in revascularization guidelines that patients allocated with low SS could be equally treated with either PCI or CABG, whereas those with intermediate or high SS were better off with CABG. However, using original SS each coronary lesion with a diameter stenosis ≥50% in vessels ≥1.

[Vena cava filters in cancer patients].

Cancer patients with venous thromboembolism (VTE) have more complications related to the anticoagulation treatment than the general population. Vena cava filters are a useful tool in cancer patients, but their use in advanced disease is controversial. In this paper, we reviewed the indications, complications and frequency of retrieval of vena cava filters in cancer patients with VTE.

Randomized comparison of cost-saving and effectiveness of oral rapamycin plus bare-metal stents with drug-eluting stents: three-year outcome from the randomized oral rapamycin in Argentina (ORAR) III trial.

Objectives: The Oral Rapamycin in ARgentina (ORAR) III trial is a randomized study comparing a strategy of oral rapamycin (OR) plus bare-metal stent (BMS) versus a strategy of drug-eluting stents (DES) in patients with de novo coronary lesions. The purpose of this study was to assess the 3 years cost-effectiveness outcome of each strategy.

Background: OR after BMS has been associated with reduction of target vessel revascularization (TVR) although its value in long-term efficacy in comparison with DES is unknown.

Safety and feasibility of balloon-expandable stent implantation for the treatment of type I endoleaks following endovascular aortic abdominal aneurysm repair.

Aims: The occurrence of type I endoleaks represent an ominous sign after endovascular aneurysms repair (EVAR). We report our experience using balloon-expandable stents (BES) for the treatment of proximal Type I endoleaks at five high-volume hospitals in Argentina.

Methods And Results: Of 1,395 patients who underwent EVAR, we retrospectively collected data of 29 (2%) consecutive patients who underwent additional BES to repair proximal type I endoleaks.

Efficacy and safety of a double-coated paclitaxel-eluting coronary stent: the EUCATAX trial.

Objectives: The aim of this study was the comparison of a new double-coated paclitaxel-eluting coronary stent with bare-metal stent (BMS) in patients undergoing percutaneous coronary intervention.

Background: Stent coating with biodegradable polymers as a platform for elution of drugs has the potential for complete elution of drugs and for decreasing the risk of late complications.

Methods: Multicenter randomized trial comparing a paclitaxel-eluting stent (PES) coated with a biodegradable polymer and glycocalyx with the equivalent BMS.

Percutaneous coronary intervention with oral sirolimus and bare metal stents has comparable safety and efficacy to treatment with drug eluting stents, but with significant cost saving: long-term follow-up results from the randomised, controlled ORAR III (Oral Rapamycin in ARgentina) study.

Aims: Previous randomised studies have shown a significant reduction in restenosis when oral rapamycin (OR) is administered to patients undergoing bare metal stent (BMS) implantation. How this regimen compares to drug eluting stents (DES) is unknown.

Methods And Results: Two-hundred patients with de novo coronary lesions were randomised to treatment with OR plus BMS (100 pts) or with DES (100 pts).

Optimal coronary balloon angioplasty with provisional stenting versus primary stent (OCBAS): immediate and long-term follow-up results.

Objective: This study sought to compare two strategies of revascularization in patients obtaining a good immediate angiographic result after percutaneous transluminal coronary angioplasty (PTCA): elective stenting versus optimal PTCA. A good immediate angiographic result with provisional stenting was considered to occur only if early loss in minimal luminal diameter (MLD) was documented at 30 min post-PTCA angiography.

Background: Coronary stenting reduces restenosis in lesions exhibiting early deterioration (>0.

In-hospital and late results of coronary stents versus conventional balloon angioplasty in acute myocardial infarction (GRAMI trial). Gianturco-Roubin in Acute Myocardial Infarction.

One hundred four patients presenting with acute myocardial infarction < 24 hours after onset were randomized to 2 groups: group I (n = 52) was treated with balloon angioplasty followed electively with Gianturco Roubin II stents, and group II was treated with conventional balloon angioplasty alone (n = 52). All lesions were suitable for stenting. Baseline clinical, demographic, and angiographic characteristics were similar in the 2 groups.

Coronary stenting in patients undergoing percutaneous transluminal coronary angioplasty during acute myocardial infarction.

Although coronary stenting has been useful in the treatment of patients with suboptimal results, abrupt closure, and threatening occlusion after percutaneous transluminal coronary angioplasty (PTCA), its use in patients with acute myocardial infarction (AMI) is controversial because of the presence of intracoronary thrombus. In this study intracoronary stenting was used to treat suboptimal results and complications in 30 patients (35 lesions) undergoing PTCA during AMI. There were 28 men and 2 women, mean age 58 +/- 12 years.

Coronary stenting decreases restenosis in lesions with early loss in luminal diameter 24 hours after successful PTCA.

Background: Early loss of minimal luminal diameter (MLD) after successful percutaneous transluminal coronary angioplasty (PTCA) is associated with a higher incidence of late restenosis.

Methods And Results: Sixty-six patients (66 lesions) with > 0.3 mm MLD loss at 24-hour on-line quantitative coronary angiography were randomized into two groups: 1, Gianturco-Roubin stent (n = 33) and 2, Control, who received medical therapy only (n = 33).

Early decrease in minimal luminal diameter after successful percutaneous transluminal coronary angioplasty predicts late restenosis.

Eighty-eight patients underwent serial coronary arteriography before, immediately after, 24 hours after and 7 +/- 2 months after successful percutaneous transluminal coronary angioplasty (PTCA) of 102 lesions. Severity of coronary obstruction was measured using quantitative digital angiography. Three groups of lesions were defined when comparing angiograms recorded immediately after and 24 hours after PTCA: group I--lesions with either no change or < or = 10% increase in arterial diameter stenosis after PTCA (n = 71); group II--lesions with > 10% increase in diameter stenosis after PTCA (n = 19); and group III--patients with total occlusion (n = 12).

[Digital coronary angiography. A new approach in the analysis of the arteriosclerotic plaque].

In order to define the coronary lesions we prospectively performed digital coronary angiographies in 61 patients. The degree of stenosis was measured in 100 lesions by quantitative analysis using densitometric and geometric methods. Two groups of lesions were found by comparing these two methods: Group A, 47 lesions with a poor correspondence in the degree of stenosis between densitometric and geometric analysis (p greater than 0.

[Early angiographic study post successful angioplasty. Predictor of late restenosis].

Consecutive prospective coronary angiographies following 24 hours were studied to find early angiographic predictors of post-PTCA restenosis in the follow-up of 71 patients who had been dilated successfully. Conventional cine coronary and quantitative digital angiography was used to analyse the degree of obstruction previous to dilatation following 24 hours and 30 minutes after the procedure. Following 24 hours, angiographic findings showed: Group A: patients having the same lumen as at immediate post-PTCA time (65.