Confirmation of capture requires an ECG or concomitant hemodynamic pulse monitoring. In addition, the markers may report that the pacemaker is sensing a signal, but if this signal is not visible on the surface ECG, there is cause for concern. Is it an appropriate signal that the pacemaker ...
Broken or Abandoned Intravascular/Intracardiac Leads The primary concern here is lead heating, resulting in endocardial burns, secondarily induced arrhythmias, damage to adjacent leads, and changes in lead capture and sensing parameters. The recent studies by Higgins (2014) Schaller (2021) and Green...
wherein said VS means comprises means for sensing evoked R waves following delivered ventricular safety pulses, and said data means comprises means for determining whether a delivered ventricular safety pulse evoked an R wave as would result from capture by said ventricular safety pulse; and, wherei...
Evaluation of pacing capture for both ventricular sites (right ventricular [RV] and left ventricular [LV]) and of the threshold for phrenic nerve stimulation in case of suspect phrenic nerve stimulation due to patient's complaints • Evaluation of information related to specific algorithms and...
which provides a means for automatically adjusting the energy of the stimulation pulse as a function of the amount of SO2sensed in the blood of the pacemaker patient. This technique is based on the observation that there is a detectable change in the SO2level when there is no capture. The ...
Atrial and ventricular automatic sensing algorithms were used in less than half of the pts without any increase over the time. During follow-up, ventricular automatic capture algorithm and ventricular automatic threshold test were increasingly used (p<0.01). DynAVD and AVSH were continuously ...
Transient sensing failure occurred in 7 of the 17 patients in whom it could be evaluated (41%). Furthermore, three cases of shock induced pacemaker malfunctions were observed requiring replacement of the stimulator in two patients. In conclusion, the incidence of loss of capture in pacemaker ...
Regarding device electrical parameters between heparin bolus and no bolus groups, there were no significant differences at the time of implant: pacing capture threshold 0.5?±?0.4 vs. 0.5?±?0.3, p?=?.10; pacing impedance 739.9?±?226.4 vs. 719.1?±?215.4, p?=?.52; R wave sensing 11.7...
Transient sensing failure occurred in 7 of the 17 patients in whom it could be evaluated (41%). Furthermore, three cases of shock induced pacemaker malfunctions were observed requiring replacement of the stimulator in two patients. In conclusion, the incidence of loss of capture in pacemaker ...
At implantation, the presence of an IC was associated with a significantly lower sensing (7.1 卤 3.7 mV vs 12.0 卤 4.0 mV; P = 0.004) and a higher capture threshold (median threshold 1.13 V at 0.24 ms [0.50-2.00] vs 0.50 V at 0.24 ms [0.25-0.75]; P = 0.002) and with a 26 ...