Whether an additional clopidogrel load in patients receiving chronic clopidogrel therapy and undergoing percutaneous coronary intervention (PCI) for acute coronary syndrome (ACS) is associated with clinical benefit has not been well characterized. The aim of the present study was to evaluate, in a randomized protocol, the safety and effectiveness of clopidogrel reload for patients with ACS undergoing PCI in the background of chronic clopidogrel therapy. A total of 242 patients with non-ST-segment elevation ACS with >10 days of clopidogrel therapy randomly received a 600-mg loading dose of clopidogrel 4 to 8 hours before PCI (n = 122) or placebo (n = 120).
View Article and Find Full Text PDFBivalirudin, a direct thrombin inhibitor, is as effective as unfractionated heparin (UFH), with decreased bleeding in patients with acute coronary syndromes who undergo percutaneous coronary intervention (PCI). The aim of this study was to evaluate the effectiveness of bivalirudin versus UFH in selected PCI patients at high bleeding risk. Four hundred one consecutive patients who underwent PCI fulfilling ≥ 1 enrollment criterion (age >75 years, chronic renal failure, and diabetes mellitus) were randomized to bivalirudin (bolus 0.
View Article and Find Full Text PDFAn altered expression of microRNAs (miRNAs) contributes both to the development of cancer and to the progression of the disease. Malignant tumours and tumour cell lines have widespread deregulated expressions of miRNAs compared to normal tissues. In this study, we investigated the expression profiles of 340 mammalian miRNAs in 93 cases of multiform glioblastoma (primary and secondary glioblastoma tumours), by means of DNA microarrays.
View Article and Find Full Text PDFBackground: Distal embolization may decrease coronary and myocardial reperfusion after percutaneous coronary intervention (PCI) in ST-elevation myocardial infarction (STEMI). In this setting, manual thrombectomy (MT) resulted in better perfusion and clinical outcomes when compared with "conventional" PCI (direct stenting or stenting after predilation). MGuard net protective stent (MGS, Inspire-MD, Tel-Aviv, Israel) is a new bare-metal stent (BMS) with a polyethylene theraphthalate mesh coverage anchored to the external surface of the struts aiming to minimize distal embolization during PCI.
View Article and Find Full Text PDFObjectives: The Multicentre registry with Antiplatelet TReatment two-sIX months (MATRIX) evaluated safety and efficacy at 12-month follow-up of Janus Flex stenting with 2- or 6-month dual antiplatelet therapy (DAT) period.
Background: There are no data of Janus Flex stent (Carbostent and Implantable Devices-CID, Saluggia, Italy), a polymer-free, tacrolimus-eluting coronary stent, followed by short-term DAT, in daily practice.
Methods: Patients were prospectively enrolled at 12 high-volume procedures centres.
Am J Cardiol
July 2011
Contrast-induced nephropathy (CIN) impairs clinical outcome in patients undergoing angiographic procedures. The aim of this study was to investigate whether short-term high-dose atorvastatin load decreases the incidence of CIN after percutaneous coronary intervention (PCI). Statin-naive patients with acute coronary syndrome undergoing PCI (n = 241) randomly received atorvastatin (80 mg 12 hours before intervention with another 40-mg preprocedure dose, n = 120) or placebo (n = 121).
View Article and Find Full Text PDFBackground: Acute myocarditis may mimic myocardial infarction, since affected patients complain of "typical" chest pain, the ECG changes are identical to those observed in acute coronary syndromes, and serum markers are increased. We describe a case series of presumptive myocarditis with ST segment elevation on admission ECG.
Methods And Results: From 1998 to 2009, 21 patients (20 males; age 17-42 years) were admitted with chest pain, persistent ST segment elevation, serum enzyme and troponine release.
Aberrant methylation of CpG islands in the promoter regions of tumour cells results in loss of gene function. In addition to genetic lesions, changes in the methylation profile of the promoters may be considered a factor for tumour-specific aberrant expression of the genes.We investigated the methylation status of E-cadherin gene (CDH1) promoter in low-grade glioma and correlated it with clinical outcome.
View Article and Find Full Text PDFJ Cardiovasc Med (Hagerstown)
March 2011
Objectives: ARMYDA-2 (Antiplatelet therapy for Reduction of MYocardial Damage during Angioplasty) trial demonstrated improved clinical outcome in patients undergoing percutaneous coronary intervention (PCI) pretreated with 600 vs. 300 mg clopidogrel loading dose. ARMYDA-2 SELECT is a prospectively planned subanalysis to investigate the effects of those different loading regimens on P-selectin levels.
View Article and Find Full Text PDFJ Am Coll Cardiol
August 2010
Objectives: This study sought to evaluate safety and effectiveness of in-laboratory (in-lab) 600-mg clopidogrel loading pre-percutaneous coronary intervention (PCI) versus routine 6-h pre-load.
Background: Clopidogrel pre-treatment significantly improves outcome in patients undergoing PCI; however, efficacy of an in-lab loading strategy before PCI after coronary angiography versus routine pre-load has not been fully characterized.
Methods: A total of 409 patients (39% with acute coronary syndrome) were randomized to receive a 600-mg clopidogrel loading dose 4 to 8 h before PCI (pre-load group, n = 204) or a 600-mg loading dose given in the catheterization lab after coronary angiography, but prior to PCI (in-lab group, n = 205).
Eur Heart J
June 2010
Aims: To evaluate safety and effectiveness of clopidogrel reloading in patients on chronic clopidogrel therapy undergoing percutaneous coronary intervention (PCI).
Methods And Results: Five hundred and three patients on >10 days clopidogrel therapy (41% with non-ST-segment elevation acute coronary syndrome, ACS) randomly received 600 mg clopidogrel loading 4-8 h before PCI (n = 252) or placebo (n = 251). Primary endpoint was 30-day incidence of major adverse cardiac events (MACE).
Introduction: TWO TYPES OF GLIOMATOSIS CEREBRI EXIST: Type I and Type II. We report the results of a histological and genetic study of two cases of gliomatosis cerebri Type II, correlating these results with therapy and prognosis.
Case Presentation: Two patients, a 52-year-old man (Patient 1) and a 76-year-old man (Patient 2) with gliomatosis cerebri II were admitted to our institution; they underwent surgical treatment and received radiotherapy and chemotherapy.
J Am Coll Cardiol
August 2009
Objectives: This study was designed to investigate whether an acute atorvastatin reload before percutaneous coronary intervention (PCI) protects patients receiving chronic statin therapy from periprocedural myocardial damage.
Background: Previous ARMYDA (Atorvastatin for Reduction of Myocardial Damage During Angioplasty) studies demonstrated that short-term pre-treatment with atorvastatin reduces myocardial infarction during PCI in statin-naïve patients with both stable angina and acute coronary syndromes.
Methods: A total of 383 patients (age 66 +/- 10 years, 305 men) with stable angina (53%) or non-ST-segment elevation acute coronary syndromes (47%) and chronic statin therapy (55% atorvastatin) undergoing PCI were randomized to atorvastatin reload (80 mg 12 h before intervention, with a further 40-mg pre-procedural dose [n = 192]) or placebo (n = 191).
Background: In modern clinical neuro-oncology, the pathologic diagnoses are very challenging, creating significant clinical confusion and affecting therapeutic decisions and prognosis.
Methods: TP53 and PTEN gene sequences were analyzed, and microarray expression profiling was also performed. The authors investigated whether gene expression profiling, coupled with class prediction methodology, could be used to determine the prognosis of gliomatosis cerebri in a more consistent manner than standard pathology.
Background: Transradial access (RA) is associated with less complications and is preferred by patients. Vascular closure devices (VCDs) may improve discomfort and may reduce complications associated with transfemoral access. Aim was to evaluate complications and discomfort associated with percutaneous coronary procedures employing RA or VCDs.
View Article and Find Full Text PDFJ Am Coll Cardiol
March 2007
Objectives: This study sought to investigate potential protective effects of atorvastatin in patients with acute coronary syndromes (ACS) undergoing percutaneous coronary intervention (PCI).
Background: Randomized studies have shown that pretreatment with atorvastatin may reduce periprocedural myocardial infarction in patients with stable angina during elective PCI; however, this therapy has not been tested in patients with ACS.
Methods: A total of 171 patients with non-ST-segment elevation ACS were randomized to pretreatment with atorvastatin (80 mg 12 h before PCI, with a further 40-mg preprocedure dose [n = 86]) or placebo (n = 85).
Catheter Cardiovasc Interv
December 2006
Objectives: To evaluate the role of a new technique to deal with a redundant Eustachian valve (EV) interfering with placement of a patent foramen ovale (PFO) occluder.
Background: The EV is a remnant of the embryonic valve of the sinus venosus. In rare occasions, it is large and redundant and it may interfere with catheters and devices used in cardiac catheterization.
Acute myocarditis may mimic an infarction. Aim is to describe a case series of peculiar myocarditis. From 1997 to 2003, 11 male patients (age 17-39 years) were admitted with diagnosis of acute myocardial infarction, localized ST segment elevation and minimal enzyme release.
View Article and Find Full Text PDFBackground: Aggressive platelet inhibition is crucial to reduce myocardial injury and early cardiac events after coronary intervention. Although observational data have suggested that pretreatment with a high loading dose of clopidogrel may be more effective than a conventional dose, this hypothesis has never been tested in a randomized trial.
Methods And Results: A total of 255 patients scheduled to undergo percutaneous coronary intervention were randomized to a 600-mg (n=126) or 300-mg (n=129) loading regimen of clopidogrel given 4 to 8 hours before the procedure.