Quadricuspid aortic valve (QAV) is a rare congenital heart defect, often related to severe aortic regurgitation, and usually detected by echocardiography or at the time of aortic valve surgery. We report a case of an interesting and extremely rare variant of "false" QAV, detected preoperatively by transthoracic and transesophageal echocardiography, in a severely symptomatic patient, admitted to our hospital for dyspnea. Three leaflets of aortic valve appeared quadricuspid, because the left coronary cusp was divided into 2 parts, as confirmed by MRI and pathology.
View Article and Find Full Text PDFAims: Pocket-size echographs may be useful for bedside diagnosis in acute cardiac care, but their diagnostic accuracy in this setting has not been well tested. Our aim was to evaluate this tool in patients requiring an urgent echocardiogram.
Methods: Trained cardiologists performed echocardiograms with a pocket-size echograph (Vscan) in consecutive patients requiring urgent echocardiography.
Objective: A study was undertaken to develop a score for assessing risk for symptomatic intracranial hemorrhage (sICH) in ischemic stroke patients treated with intravenous (IV) thrombolysis.
Methods: The derivation cohort comprised 974 ischemic stroke patients treated (1995-2008) with IV thrombolysis at the Helsinki University Central Hospital. The predictive value of parameters associated with sICH (European Cooperative Acute Stroke Study II) was evaluated, and we developed our score according to the magnitude of logistic regression coefficients.
Background And Purpose: Demographic changes will result in a rapid increase of patients age ≥90 years (nonagenarians), but little is known about outcomes in these patients after intravenous thrombolysis (IVT) for acute ischemic stroke. We aimed to assess safety and functional outcome in nonagenarians treated with IVT and to compare the outcomes with those of patients age 80 to 89 years (octogenarians).
Methods: We analyzed prospectively collected data of 284 consecutive stroke patients age ≥80 years treated with IVT in 7 Swiss stroke units.
Background And Purpose: In acute stroke it is no longer sufficient to detect simply ischemia, but also to try to evaluate reperfusion/recanalization status and predict eventual hemorrhagic transformation. Arterial spin labeling (ASL) perfusion may have advantages over contrast-enhanced perfusion-weighted imaging (cePWI), and susceptibility weighted imaging (SWI) has an intrinsic sensitivity to paramagnetic effects in addition to its ability to detect small areas of bleeding and hemorrhage. We want to determine here if their combined use in acute stroke and stroke follow-up at 3T could bring new insight into the diagnosis and prognosis of stroke leading to eventual improved patient management.
View Article and Find Full Text PDFObjective: To determine clinical, neuroradiological or ultrasonographic parameters associated with early recanalization and clinical outcome in patients treated with intravenous (IVT) or combined intravenous-intra-arterial (IVT-IAT) thrombolysis.
Methods: From 2004 to 2007, all consecutive ischemic stroke patients admitted within a 3-hour window and who underwent thrombolytic therapy were reviewed. Degree of occlusion and recanalization during IVT was assessed by transcranial color-coded ultrasound (TCCD) using Thrombolysis In Brain Ischemia (TIBI) classification.
Background And Purpose: Intravenous thrombolysis (IVT) for stroke seems to be beneficial independent of the underlying etiology. Whether this is also true for cervical artery dissection (CAD) is addressed in this study.
Methods: We used the Swiss IVT databank to compare outcome and complications of IVT-treated patients with CAD with IVT-treated patients with other etiologies (non-CAD patients).
Objective: Early admission to hospital with minimum delay is a prerequisite for successful management of acute stroke. We sought to determine our local pre- and in-hospital factors influencing this delay.
Patients And Methods: Time from onset of symptoms to admission (admission time) was prospectively documented during a 6-month period (December 2004 to May 2005) in patients consecutively admitted for an acute focal neurological deficit presented at arrival and of presumed vascular origin.
Introduction: Cerebral embolism is the principal cause of cerebral infarction. Recently, mechanical embolectomy has been proposed as an effective method. We performed a preclinical evaluation of a new mechanical clot-retrieving wire.
View Article and Find Full Text PDFBackground And Purpose: Determine feasibility and safety of intravenous (IV) versus combined (IV-IA [intra-arterial]) thrombolysis guided by transcranial color-coded duplex sonography (TCCD).
Methods: Thirty-three patients eligible for IV thrombolysis, within 3 hours of onset of symptoms, with occlusion in middle cerebral artery territory (TCCD monitoring, thrombolysis in brain ischemia [TIBI] flow grade [0-3]), underwent IV thrombolysis (tissue plasminogen activator, 0.9 mg/kg).
Background: The purpose of this study was to assess whether the detection of atherosclerotic aortic plaques by transoesophageal echocardiography (TEE) could be used as a marker of coronary artery disease (CAD), relying on their number, cross-sectional surface, depth and localisation.
Methods: The thoracic aortas of 102 consecutive patients (77 men, mean age 67 +/- 12 years) undergoing elective cardiac surgery were assessed by TEE. Atherosclerotic plaques were defined as > or = 5 mm thick focal hyperechogenic zones of the aortic intima and/or lumen irregularities with mobile structures or ulcerations.