WebNov 3, 2024 · turn pacing rate to > 30bpm above patients intrinsic rhythm. set mA to 70. start pacing and increase mA until pacing rate captured on monitor. if pacing rate not … WebJan 27, 2024 · Impedance is the ratio of voltage to current in an electrical circuit. Cardiovascular implantable electronic devices measure impedance to assess the structural integrity electrical performance of leads, typically using subthreshold pulses. We review determinants of impedance, how it is measured, variation in clinically measured pacing …
unstable pacing thresholds of the leadless transcatheter …
WebAfter an infusion of flecainide the time to capture from endocardial pacing was significantly prolonged to 14.9 ± 2.2 s at the threshold value (P < .01) and 5.6 ± 2.1 s at twice threshold (P < .05). Conversely, intravenous propranolol had no effect on the time to capture after shock from endocardial pacing. WebDec 27, 2024 · The pacing threshold at implantation was 0.9 V at 0.24 ms, sensitivity was 5.4 mV, and impedance was 520 Ω, with stability maintained at 5 min and 10 min after implantation. When the LTP was interrogated 1 week later, the pacing threshold had increased to 2.25 V at 0.24 ms, and impedance had decreased to 390 Ω. glindner shaw.ca
Acute effects of anti-arrhythmic drugs on cardiac pacing …
WebDec 17, 2024 · Pacing parameters before and after drug intervention was measured, including His capture threshold, sensing and impedance, H-V interval, and conduction. … WebForty cardiac pacing threshold studies were conducted in 20 patients during temporary pacing prior to permanent pacemaker implantation using the following intravenously administered anti-arrhythmic drugs: Lignocaine 2 mg/kg (10 patients), mexiletine 5 mg/kg (5 patients), ajmaline 1 mg/kg (5 patients), verapamil 0.15 mg/kg (10 patients) and … WebA high energy shock delivered by an automatic defibrillator may interfere with pacemaker function. To provide insight into the changes that occur in the threshold for ventricular pacing after the shock from an automatic defibrillator, we measured the time to capture during asynchronous ventricular pacing in dogs from endocardial or epicardial sites, after … body temperature when dying