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Aims: We sought to determine the feasibility of conducting percutaneous coronary intervention (PCI) in high-risk acute coronary syndrome (ACS) patients utilising the REG1 system consisting of pegnivacogin, an aptameric factor IXa inhibitor, and its controlling agent anivamersen. Methods and results: In RADAR, ACS patients were randomised to pegnivacogin 1 mg/kg with 25%, 50%, 75%, or 100% anivamersen reversal or unfractionated heparin. Of the 640 patients randomised, 388 (61%) underwent PCI. Major modified...
Unfractionated heparin (UFH) administered by IV infusion is effective in preventing myocardial infarction and death after non-ST-elevation acute coronary syndrome. At the authors' centre, preparations of UFH in 0.9% sodium chloride (normal saline; UFH-NS) were used during a shortage of commercially available UFH in dextrose 5% in water (UFH-D5W), the usual preparation. Anecdotal observations raised concerns about the effectiveness of the saline-based preparation in achieving minimally therapeutic anticoagul...
The novel oral anticoagulant drugs, comprising dabigatran, rivaroxaban, and apixaban, have emerged as compelling alternatives to vitamin K antagonists for stroke prevention in atrial fibrillation, and low‑molecular‑weight heparin for thromboprophylaxis following hip and knee arthroplasty. Rivaroxaban has also been approved for treatment of venous thromboembolism. However, the role of these drugs for the management of patients with an acute coronary syndrome (ACS) is less certain. The purpose of this rev...
While the activated partial thromboplastin time (aPTT) is the most widely used assay to monitor unfractionated heparin (UFH), providing a general measure of the extent of anticoagulation, it does not reliably correlate with the blood concentration of heparin or its antithrombotic effect. While cost and availability have limited the widespread use of UFH in hospitals, monitoring UFH with heparin levels has been shown to reduce both the number of monitoring tests and the time to a therapeutic range.
Double antiplatelet therapy with clopidogrel and acetylsalicylic acid is a standard procedure after acute coronary syndrome. This treatment carries a higher risk of complications. The main goal of this research was to assess the patients' quality of life after undergoing antiplatelet therapy with clopidogrel after acute coronary syndrome (ACS).
It is unclear whether obstructive sleep apnea (OSA) increases the recurrence of acute coronary syndrome (ACS) in patients with acute myocardial infarction (MI). We hypothesized that moderate-to-severe OSA increased the number of adverse cardiovascular events in patients who underwent primary percutaneous coronary intervention (PCI).
Non-ST elevation acute coronary syndromes (NSTEACS) represent a spectrum of disease including unstable angina and non-ST segment myocardial infarction (NSTEMI). Despite treatment with aspirin, beta-blockers and nitroglycerin, unstable angina/NSTEMI is still associated with significant morbidity and mortality. Although evidence suggests that low molecular weight heparin (LMWH) is more efficacious compared to unfractionated heparin (UFH), there is limited data to support the role of heparins as a drug class i...
The woven coronary artery anomaly is a rare congenital anomaly in which a coronary artery is divided into thin channels that merge again into the distal lumen. Only a few cases of woven coronary artery have been reported in the literature. This anomaly is accepted as a benign condition. We describe a case of acute coronary syndrome in a patient with woven coronary artery anomaly.
Heparin is one of the most important medication that is used in coronary artery bypass graft (CABG) operations, but some patients demonstrate heparin resistance (HR) during CABG. Heparin resistance was defined as at least one activated clothing time
Acute coronary syndrome (ACS) as a result of iatrogenic coronary ostial stenosis (ICOS) is a rare but potentially life-threatening complication of aortic valve replacement (AVR). We present three cases of patients with ACS shortly after AVR, in whom ICOS were revealed. They refused an operation and thus they were treated with percutaneous coronary intervention. The potential pathomechanisms of ICOS and treatment options are discussed.
It is well-established that acute coronary syndromes occurs when thrombus formation from atheromatous plaques erode or rupture in the advanced stage of atherosclerotic process with severe reduction of coronary blood flow. Also, some conditions may trigger acute coronary syndrome even in the absence of prior cardiovascular disease, and with normal coronary vessels. One of the most important is Kounis syndrome, also known as "allergic angina" or "allergic myocardial infarction" in which the release of mediato...
Spontaneous coronary artery dissection is a rare cause of acute coronary syndrome and sudden cardiac death. The incidence, causes, pathogenesis, and treatment have not been defined clearly, but spontaneous coronary artery dissection should be considered in young patients without major cardiovascular risk factors or in patients in the peripartum period who present with acute coronary syndrome. The treatment is often challenging. Medical treatment is usually considered, and percutaneous coronary intervention...
Recurrent ST-segment elevations in acute coronary syndromes have been attributed to coronary cyclic flow variations (CCFVs) possibly due to coronary vasospasm and unstable platelet aggregation in partially occluded arteries.
In patients with suspected acute coronary syndrome (ACS), rapid triage is essential. The aim of this study was to establish a tool for risk prediction of 30-day cardiac events (CE) on admission. 30-day cardiac events (CE) were defined as early coronary revascularization, subsequent myocardial infarction, or cardiovascular death within 30 days.
The occurrence of acute myocardial infarction following a honeybee sting has been very rarely reported in the previous literature. Possible pathogenetic mechanisms include severe hypotension, rarely hypertension and coronary vasospasm with subsequent thrombosis of coronary vessels developed after the release of vasoactive, inflammatory and thrombogenic substances contained in the bee venom. This syndrome is also known as Kounis syndrome. We report a case of a 32-year-old man who presented with acute inferio...
We present a case of a 100-year-old woman living alone with ST-elevation myocardial infarction acute coronary syndrome of the infero-lateral wall treated with percutaneous coronary intervention. Coronary angiography revealed critical 99% stenosis in the marginal branch of the circumflex artery and insignificant lesions in other arteries. Two bare metal stents were implanted successfully in the same session. The patient was discharged home in good general condition, able to live and function independently.
The proportion of elderly acute coronary syndrome (ACS) patients who receive optimal medical therapy (OMT) after percutaneous coronary intervention (PCI) and whether OMT affects their long-term outcomes remain unclear. We retrospectively investigated 405 ACS patients who underwent stent implantation between 2005 and 2009, and compared the outcomes between patients
Acute coronary syndrome (ACS) is a significant contributor to both morbidity and mortality in Australia. Generally speaking, sufferers of ACS who live in rural areas and are treated at rural hospitals have poorer outcomes than those living in metropolitan areas.
To identify the current mortality and management of patients admitted for suspected acute coronary syndrome in Spain. The last available registry (2004-2005) reported an in-hospital mortality of 5.7%.
Electrocardiogram (ECG) manifestations of takotsubo cardiomyopathy (TC) produce ST-segment elevation or T-wave inversion, mimicking acute coronary syndrome (ACS). We describe the ECG manifestation of TC, including ECG evolution, and its different points from ACS.
This study characterized a medically managed population in a non-ST-segment elevation acute coronary syndrome (NSTEACS) cohort and evaluated prognosis and outcomes of vorapaxar vs. placebo.
To provide updates regarding the optimal duration of dual antiplatelet therapy (DAPT) in patients with acute coronary syndromes (ACS).
Patients with suspected acute coronary syndrome are commonly assessed by acute physicians on arrival in hospital. Although most will recognise the typical ECG features of ST elevation myocardial infarction, the significance of ST elevation in lead aVR may not always be appreciated. This case series describes 6 cases in which this ECG abnormality was the predominant feature in patients whose subsequent angiogram revealed severe acute left main coronary artery disease. The importance of early referral of such...
To evaluate the current clinical application of domestic tirofiban in patients with acute coronary syndrome (ACS) and to explore its safety profile focused on the common causes and correlation factors for the hemorrhagic events.
This study determined the risk of acute coronary syndrome (ACS) associated with herpes zoster infection.