Search results for "Infarction"
showing 10 items of 1208 documents
Microvascular obstruction in non-STEMI related areas: An uninvited guest in STEMI?
2018
α-HYDROXYBUTYRIC DEHYDROGENASE IN THE DIAGNOSIS OF MYOCARDIAL INFARCTION
1962
Chronic total coronary occlusions and the Occluded Artery Trial. A critical appraisal.
2008
The OAT trial and its angiographic substudy TOSCA-2, along with a number of published commentaries, represents examples of over-interpretation of clinical study results. A study that achieved no statistically significant result for any of the study endpoints can only claim to have proven that their null hypothesis cannot be rejected. The lack of power due to a reduction of patient numbers by one third, and an unexpected low event rate, makes it not unlikely that another trial would be able to disprove the null hypothesis. These statistical facts should be accepted by the authors and commentators. Instead, the inconclusive results were interpreted in such a way that they might apply to patie…
P4573In patients with acute myocardial infarction, PCSK9 levels do not predict severity and recurrence of cardiovascular events
2019
Abstract Background In patients with coronary artery disease (CAD), it remains unclear whether serum PCSK9 levels can predict the severity of the disease and the risk of future cardiovascular events. Methods Among the patients admitted for an acute myocardial infarction (MI) from September 2015 to December 2016 in an intensive care unit from a university hospital, serum PCSK9 levels were measured on admission in patients not previously receiving statin therapy. We aimed to evaluate the association between PCSK9 levels, metabolic parameters, severity of CAD on coronary angiography, and the risk of in-hospital events and at one-year follow-up. Results In a total of 648 patients (mean age: 66 …
Study of Post-Infarction Coronary Perfusion Using Quantitative Analysis of Myocardial Echocardiography With Intravenous Injection of Contrast
2005
Introduction and objectives. After a myocardial infarction, damage to the microcirculation indicates a worse prognosis. We compared the usefulness of the quantitative analysis of myocardial contrast echocardiography with intravenous injection of contrast (MCE-iv) with intracoronary injection (MCE-ic) for analyzing coronary perfusion. Patients and method. We studied 42 patients with a first ST-elevation myocardial infarction, single-vessel disease and a patent artery (TIMI 3, stenosis 0.75) and MCE-iv (perfusion of SonoVue, singleimage capture in 1 out of each 6 cycles with trigger set at end-systole, perfusion considered normal if >0.9). Perfusion was considered abnormal if 2 or more segmen…
INFLUENCE OF RECOMBINANT PRO-UROKINASE ON THE HEMOSTATIC SYSTEM IN PATIENTS WITH ACUTE MYOCARDIAL INFARCTION
1987
Recombinant unglycosylated pro-urokinase (recombinant single chain urokinase-type plasminogen activator, CG4509) was given to twelve patients (pts.) with acute myocardial infarction as a 20 mg bolus followed by a 60 mg intravenous infusion (iv.inf.) over 1 hour and to twelve pts. as a 10 mg bolus followed by a 30 mg iv.inf. over 1 hour. Reperfusion was angiographically confirmed in 9/12 pts. with the higher dose and in 6/12 pts. who obtained the lower dose. Different parameters of hemostasis were determined before administration, 30 min after the beginning of inf.,at the end of inf., 60 min thereafter and 6-12 hours afterwards .The most significant systemic changes were observed 60 min afte…
Synchronization index for quantifying nonlinear causal coupling between RR interval and systolic arterial pressure after myocardial infarction
2002
The analysis of nonlinear couplings among cardiovascular variability series can improve the knowledge of the cardioregulatory mechanism and help to understand how it can be affected by pathologies. In this study, the influences of acute myocardial infarction (AMI) on the causal relationships between the heart period and the arterial pressure were investigated by a nonlinear dynamic approach based on the corrected cross-conditional entropy. Whereas the global synchronization index did not differentiate the post-AMI patients from the young and old control groups, the causal indexes evidenced the impairment of the baroreflex control and showed an increase of the mechanical driving of the RR in…
Endovascular thrombectomy with the AngioJet System for the treatment of intermediate-risk acute pulmonary embolism: a case report of two patients
2016
Acute pulmonary embolism (PE) is one of the leading causes of death and ranks third, after myocardial infarction and cerebral stroke, among fatal hospital-related cardiovascular events [1–3]. Mortality associated with PE can be lowered by early treatments aimed at restoring patency of occluded pulmonary arteries (PAs). Although systemic thrombolysis remains the recommended management of PE [4], recent advances in endovascular techniques, especially of rheolytic thrombectomy, suggest that the endovascular approach can represent an alternative therapeutic strategy [5–9]. Here we describe endovascular treatment of two patients with acute PE. We used the AngioJet (Boston Scientific, Natick, MA,…
Uncontrolled immune response in acute myocardial infarction
2008
Recently, the theory that hyperinflammation is the body's primary response to potent stimulus has been challenged. Indeed, a deregulation of the immune system could be the cause of multiple organ failure. So far, clinicians have focused on the last steps of the inflammatory cascade. However, little attention has been paid to lymphocytes, which play an important role as strategists of the inflammatory response. Experimental evidence suggests a crucial role of T lymphocytes in the pathophysiology of atherosclerosis and acute myocardial infarction (AMI). In summary, from the bottom of an imaginary inverted pyramid, a few regulatory T-cells control the upper parts represented by the wide spectr…