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The ability of a new pacing lead design, with a 10 mm tip-to-ring spacing, to facilitate rejection of sensed far field R-waves and myopotentials was evaluated.Measurements were performed in 66 patients. The occurrence of far field R-wave sensing and myopotential sensing was determined by means of the surface ECG and the ECG markers provided by the pacemaker. At an atrial sensitivity of 0.25 mV and...
This study investigated the ability to minimize pace polarization artefacts (PPA) by adjusting the post-stimulus pulse duration of a tri-phasic stimulation pulse. Adjustment of the stimulation pulse was enabled by downloading special study software into an already implanted pacemaker. Tests were performed in a total of 296 atrial leads and 311 ventricular leads. Both chronic and acute leads were included...
Die bisher angewandten Methoden zur Optimierung der AV-Zeiten bei 2-Kammerschrittmacher erfordern einen gewissen apparativen Aufwand und sind zeitintensiv. Eine einfache und schnelle Methode ist die approximative Einstellung der AV-Intervalle mit Hilfe des Ober.chen- und des Vektor-EKGs. Das optimale AV-Intervall (AVI) ist dann gegeben, wenn am Ende der atrialen Kontraktion die Mitralklappe durch...
The first Autocapture generation worked well with all recommended leads. The newer Autocapture generation provides a more sensitive resolution for evoked response testing and its implementation in a dual-chamber device. The purpose of the study was to evaluate the performance of the Affinity SR/DR pacemaker with the new Autocapture algorithm in combination with the small surface area pacing lead MembraneEX...
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