Detection of Middle Cerebral Emboli During Coronary Artery Bypass Surgery Using Transcranial Doppler Sonography To the Editor: Spencer et al recently described the use of transcranial Doppler sonography to record the passage of emboli through the middle cerebral artery (MCA) during carotid endarterectomy. They recorded transient signals at the time of releasing common carotid cross clamps and i...

Cardiac tumor is a rare cause of cerebral embolic infarction which has no established therapeutic strategies. Although some cases were successfully treated by recombinant tissue-plasminogen activator (rt-PA), this article indicates the effectiveness of emergency mechanical thrombectomy for tumorous type of emboli which do not respond to rt-PA. A 34-year-old man presented with ischemic stroke an...

BACKGROUND AND PURPOSE Unenhanced head CT has become the first line imaging study in the evaluation of suspected acute cerebral ischemia. It is important to identify subtle findings of acute ischemia on this exam to direct appropriate patient management. Summary of Case- We report the first case of multiple pial surface distal internal carotid artery territory calcified emboli causing multifoca...

Paradoxical cerebral emboli from cardiac and pulmonary sources are well described in the peer-reviewed literature. We outline a case with a hepatic etiology and describe diagnostic and management options. Though this paper represents the first documentation of such, we believe that transpulmonary shunting with concurrent paradoxical cerebral microemboli is more prevalent than recognized. We int...

injury: a randomized, controlled, experimental study. Crit Care 2013;17:R86. 5. Robson MC, Del Beccaro EJ, Heggers JP. The effect of prostaglandins on the dermal microcirculation after burning, and the inhibition of the effect by specific pharmacological agents. Plast Reconstr Surg 1979;63:781-7. and the left MCA contraction period blood flow velocity was 98 cm/sec, which was higher than the no...

Left atrial myxoma commonly leads to cerebral embolic ischemic stroke. The subsequent formation of cerebral aneurysms due to myxomatous emboli is a phenomenon that may lead to severe neurologic complications such as intracerebral hemorrhage. In addition to the formation of aneurysms in cerebral arteries, we report here the unique picture of a retinal involvement consisting in microaneurysm form...

The purpose of this study was to develop an animal model that could be used to test the ability of Doppler ultrasound to detect arterial emboli composed of materials that are often involved in cerebral emboli. Emboli introduced into the rabbit aorta via the left renal artery consisted of clotted whole blood, platelets, atheromatous material, fat, or air. The ultrasound examination was carried o...

BACKGROUND AND PURPOSE Emboli and proinflammatory mediators are suspected of generating cerebral edema after coronary surgery. In contrast to cardiopulmonary bypass (CPB), off-pump coronary artery bypass surgery (OPCAB) reduces microemboli count and proinflammatory mediator release but carries the risk of hemodynamic instability. A microaxial blood pump can augment cardiac output. METHODS Cor...

BACKGROUND AND PURPOSE The detection of circulating particulate cerebral emboli using transcranial Doppler ultrasonography has been recently reported. It has been suggested that this method might allow discrimination between different embolic materials; this would be very useful for selecting specific pharmacological treatment in individual patients. This study was designed to identify those pa...

Non-bacterial thrombotic endocarditis (NBTE) classically presents in the context of pancreatic adenocarcinomas. Echocardiography is useful to investigate for valvular vegetations, and institution of early treatment is crucial as this can be complicated by multiple systemic emboli, leading to significant morbidity or mortality in serious cases. Treatment options involve anticoagulation with unfr...