Catheter

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Varicose veins

USA - A next-generation radiofrequency ablation catheter - the VNUS ClosureFASTTM - has been used by surgeon Phillip Levin MD, at Cedars-Sinai, in Los Angeles, California. An expert in VNUS closure procedure, Dr Levin has treated approximately 300 patients since 2003 with the ClosureFASTTM catheter's predecessor.

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Contrast agents in Sonography

Ultrasound contrast agents (USCA) or echo enhancers consist of minute gas containing microbubbles that have a high reflectivity when exposed to an ultrasound field. The history of USCA started in the mid of the 1960s. The cardiologist Joyner performed echo cardiography during the injection of saline solution into the aortic root via a catheter. During the injection he observed bright signals on…

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Carotid stenting suffers a setback

The debate between carotid artery stenting (CAS) and carotid endarterectomy (CEA) - the surgical approach - for treating a narrowing of the carotid artery in the neck to prevent stroke has tipped in favour of the more proven procedure of operation.

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Article • Freezing cardiology

Cryoablation – a safer therapy for children with arrhythmias

Freezing abnormal electrical pathways in the hearts of young patients may be a safer alternative to zapping them with powerful radiofrequency probes to treat tachycardias and other arrhythmias, according to Dr Fabrizio Drago, of the Bambino Gesù Hospital, Rome. ‘If you have a child with a supraventricular tachycardia due to a re-entry circuit, or a target very close to the atrioventricular…

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Robot navigates catheter to correct atrial fibrillation

Italy - A remotely-controlled catheter device guided by magnetic fields provides a safe and practical method for delivering radio frequency ablation treatment in the hearts of patients with atrial fibrillation, according to a new study (Pub: Journal of the American College of Cardiology. 4/4/06).

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