Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions
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Catheter Cardiovasc Interv · Nov 2011
Comparative StudyFeasibility of transcatheter closure in unselected patients with secundum atrial septal defect, using Amplatzer devices and a modified sizing balloon technique.
We aimed to assess (1) the role of surgical versus transcatheter closure techniques and (2) the impact of a modified implantation technique to optimize closure of secundum septal defects with the Amplatzer device. ⋯ The majority of secundum atrial septal defect is amenable to transcatheter closure, using a modified implantation technique in 16% of cases.
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Catheter Cardiovasc Interv · Nov 2011
Case ReportsPotential risk of provisional stenting in left main coronary artery bifurcation in multivessel-related acute coronary syndrome.
We present a case of an elderly man suffering from an acute coronary syndrome (ACS) with preshock vital signs and remarkable ST-T wave depression in leads V4-V6, and ST elevation in lead aVR. Coronary angiography showed total occlusion of the right coronary artery (RCA) and impending occlusion in the distal left main coronary artery (LMCA) with a tandem lesion in the proximal left anterior descending artery (LAD). After insertion of an intra-aortic balloon pump both the LAD and left circumflex artery (LCX) were dilated alternatively; and cross-over stenting in the LMCA bifurcation was subsequently performed. ⋯ Immediate installation of percutaneous cardio-pulmonary support system allowed stent deployment to be performed in the RCA and subsequent reopening of the LCX that led to a return to sinus rhythm. The patient recovered almost normal left ventricular wall motion and previous activity without any neurological deficit within 2 weeks. Provisional stenting in ACS in the LMCA bifurcation with multivessel disease has a potential risk of acute hemodynamic collapse; a planned two-stent deployment strategy may assure a higher rate of safety in such cases.
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Catheter Cardiovasc Interv · Oct 2011
Randomized Controlled TrialAspiration coronary thrombectomy for acute myocardial infarction increases myocardial salvage: single center randomized study.
The aim of the study was to assess if aspiration thrombectomy in high risk patients with STEMI and angiographic evidence of thrombus may improve myocardial salvage. ⋯ Aspiration thrombectomy improves myocardial salvage in high risk STEMI patients with angiographic evidence of thrombus.
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Catheter Cardiovasc Interv · Oct 2011
Multicenter StudyThe ability to achieve complete revascularization is associated with improved in-hospital survival in cardiogenic shock due to myocardial infarction: Manitoba cardiogenic SHOCK Registry investigators.
To identify predictors of survival in a retrospective multicentre cohort of patients with cardiogenic shock undergoing coronary angiography and to address whether complete revascularization is associated with improved survival in this cohort. ⋯ The ability to achieve complete revascularization may be strongly associated with improved in-hospital survival in patients with cardiogenic shock.
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Catheter Cardiovasc Interv · Oct 2011
Influence of CoreValve ReValving System implantation on mitral valve function: an echocardiographic study in selected patients.
The purpose of this study is to verify whether transcatheter aortic valve implantation (TAVI) determined changes in mitral valve (MV) function, in terms of mitral regurgitation (MR) and stenosis. ⋯ In the majority of patients no significant changes occurred in the degree of MR in native valve, but we found that if the aortic valve was deeply implanted in the left ventricle outflow tract, a worsening in MR can be observed. A mitral stenosis development must be sought in patients with heavy calcifications of the anterior leaflet.