Electrophysiology catheter

Platiaum and its alloys are also used as biomedical electrodes, eg, platiaum—indium wires for permanent and temporary pacemaker leads and defibrillator leads. Electrophysiology catheters, which contain platinum electrodes and marker bands, have been used to map the electrical pathways of the heart so that appropriate treatment, such as a pacemaker, can be prescribed. 

Fig 9 2 Using a right-sided approach, the electrophysiological catheter is directed to the lateral wall of the right atrium (a) successful cannulation of the coronary sinus in the same patient (b)... 

Marcelli, E., Cercenelli, L., Plicchi, G. A Novel Telerobotic System to Remotely Navigate Standard Electrophysiology Catheters. Computers in Cardiology 35, 137-140 (2008)... 

Occasionally spasm as a result of irritation may cause coronary sinus constriction. In this case, coronary sinus cannulation should be attempted with an 035-in. guidewire instead of the deflectable electrophysiology catheter. 

Batian MuraliN, Mickelsen S, Brooks C, Jaramillo J, HeptonT, Kusumoto FM. (1998) Safety and efficacy of hydrogen peroxide plasma sterilization for repeated use of electrophysiology catheters./Ara Coll Cardiol 32 1384—1388. 

Lerouge S, Guignot C, Tabrizian M, Ferrier D, Yagoubi N, Yahia L. Plasma-based sterilization effect on surface and bulk properties and hydrolytic stability of reprocessed polyurethane electrophysiology catheters. J Biomed Mater Res 2000 52 774-82. 

Exercise-related VT frequently arises from the right ventricular outflow tract and may be easily evaluated by catheter mapping in an electrophysiology laboratory. The treatment of first choice for chronic therapy of this arrhythmia has been -blockers, but radiofrequency catheter ablation should also be considered. 

Haissaguerre M, etal, Electrophysiological end point for catheter ablation of atrial fibrillation initiated from multiple pulmonary venous foci, Circulation 2000 101 (12) 1409— 1417. 

Tai CT, Chiang CE, Lee SH, Chen YJ, Yu WC, Feng AN, Ding YA, Chang MS, Chen SA. Persistent atrial flutter in patients treated for atrial fibrillation with amiodarone and propafenone electrophysiologic characteristics, radiofrequency catheter ablation, and risk prediction. J Cardiovasc Electrophysiol 1999 10(9) 1180-7. 

Yamada T, Doppalapudi H, Mcelderry HT et al (2010) Idiopathic ventricular arrhythmias originating from the papillary muscles in the left ventricle prevalence, electrocardiographic and electrophysiological characteristics, and results of the radiofrequency catheter ablation. J Cardiovasc Electrophysiol 21(1 ) 62-69... 

Kumagai K, Ogawa M, Noguchi H, Yasuda T, Nakashima H, Saku K. Electrophysiologic properties of pulmonary veins assessed using a multielectrode basket catheter. J Am Coll Cardiol 2004 43 2281-9. 

Nademanee K, McKenzie J, Kosar E, et al. A new approach for catheter ablation of atrial fibrillation mapping of the electrophysiologic substrate. J Am Coll Cardiol 2004 43 2044-53. 

Ouyang F, Ernst S, Chun J, et al. Electrophysiological findings during ablation of persistent atrial fibrillation with elec-troanatomic mapping and double Lasso catheter technique. 

Simple electrophysiology deflectable leads, pigtails, angiographic catheters... 

F. 3.2 a Schematic view of a single screw extmder. b An example of single lumen and multilumen tubes. Typical applications include drug and stent delivery catheter shafts, endoscopes, electrophysiology and diagnostic catheters, and neurovascular devices produced by extrusion, b Source A.P. Extrusion Co., Salem New Hampshire, USA... 

Fentanyl enhances vagal tone and can cause bradycardia. In 27 children undergoing catheter ablation under propofol anesthesia, which has minimal effect on the sinus node, electrophysiological stimulation was performed before and after a bolus dose of fentanyl 2 micrograms/kg and a subsequent infusion of 0.075 micrograms/kg/minute [64 ]. There was an increase in calculated sinus node recovery time but no change in sinoatrial conduction time after fentanyl, suggesting that fentanyl -I- propofol impairs sinus node recovery and therefore... 

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