1,720,968 research outputs found
Comparison of Access-Related Bleeding Complications in Women Versus Men Undergoing Percutaneous Coronary Catheterization Using the Radial Versus Femoral Artery
No full textResistant hypertension: drug-eluting balloon for revascularization of bilateral renal fibromuscular dysplasia
No full textNo abstract availabl
Transcathether occlusion of interatrial communications. postprocedural transoesophageal echocardiography allows timely detection and treatment of intracardiac thrombus formation
No full textAIMS:Thrombus formation leading to ischaemic stroke is a major concern after transcathether occlusion of interatrial communications. The aim of our study was to verify if postprocedural transoesophageal echocardiography (TEE) might improve timely detection and management of thrombus formation. METHODS AND RESULTS:We studied 65 patients with patent foramen ovale or atrial septal defect who received an atrial septal closure device. Transoesophageal echocardiography was used to guide the procedure, and was repeated <1 h after the end of the procedure, at 30 day and 6 month follow-up visits. Transoesophageal echocardiography <1 h after procedure revealed a left-sided thrombus attached to the device in three patients. All cases were successfully treated by thrombolytic therapy with full-dose tenecteplase (0.53 mg/kg in 5-10 s) with disappearance of thrombus in 15-60 min. No cerebrovascular event was recorded during a follow-up of 311 +/- 235 days. CONCLUSION:Thrombus formation on interatrial closure devices can occur soon after device implantation and can be timely detected by postprocedural TEE
Effects of reperfusion obtained two to six months after acute myocardial infarction on myocardial electrical stabilization in patients with an occluded infarct-related coronary artery
No full textA uncommon cause of angina during upper limb exercise
No full textSubclavian artery stenosis or occlusion may be a cause of myocardial ischemia in patients treated using an internal mammary artery graft. Subclavian stenosis may cause myocardial ischemia during arm exercise by a coronary-subclavian steal phenomenon, with flow inversion in the graft from the coronary tree to the left subclavian artery. We here describe a case of a patient developing left subclavian occlusion after coronary artery bypass grafting with the left internal mammary artery. The lesion was successfully treated with a carotid-subclavian bypass. The article underscores the importance of an early diagnosis (possibly before bypass surgery) and discusses possible treatments. Percutaneous interventions with stent implantation appear the treatment of choice, but surgery has an important role in case of total occlusion
Effects of the nitric oxide donor nitroprusside on no-reflow phenomenon during coronary interventions for acute myocardial infarction
No full textSafety and Efficacy of Short-Term Celecoxib Before Elective Percutaneous Coronary Intervention for Stable Angina Pectoris
No full textDistal left circumflex coronary artery flow reserve recorded by transthoracic Doppler echocardiography: a comparison with Doppler-wire
No full textAbstract Background Coronary flow reserve (CFR) recording by means of transthoracic echocardiography (TTDE) in all the main distal coronary arteries is a challenge for advanced echocardiography. Validation studies of TTDE versus Doppler-wire (DW) recordings are available for Left Anterior Descending artery (LAD) and the Posterior Descending coronary artery (PD), but lacking for the more technically challenging Left Circumflex coronary artery (LCx). Aim To evaluate the reliability of TTDE in assessing CFR in LCx when compared to the intracoronary Doppler flow-wire gold standard. Methods we evaluated 5 patients (age = 60 ± 9 years, 5 males) on LCx by TTDE and invasive CFR assessment. TTDE recording was performed using a low-frequency probe, with a four-chamber as a guiding 2D view. The 2 tests were performed on different days and in random order within 48 hours in a blind fashion. Vasodilator stimulus was adenosine, intravenously (140 γ/kg/min × 3–6 min) for TTDE and intracoronary (40 γ bolus) for DW recordings. Results CFR values on LCx ranged from 1.9 to 2.8 for DW, and from 2.0 to 3.0 for TTDE, with an overall correlation of R = 0,85 (p = 0,06); normal (CFR > 2.5) or abnormal (CFR Conclusion CFR of LCx artery can be obtained noninvasively with TTDE.</p
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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