Report of a pacing-dependent patient implanted with a dual-chamber ICD: Smart, but not always smart enough
| Autor: | Jean-Paul Albenque, Jean-Thomas Aubert, Serge Boveda, Eloi Marijon |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Male
medicine.medical_specialty Pacemaker Artificial Defibrillation medicine.medical_treatment Marker analysis Ventricular tachycardia Physiology (medical) Internal medicine medicine Humans cardiovascular diseases Aged Fibrillation business.industry Cardiac Pacing Artificial Ventricular pacing medicine.disease Shock delivery Defibrillators Implantable Male patient Shock (circulatory) cardiovascular system Cardiology Tachycardia Ventricular medicine.symptom Cardiology and Cardiovascular Medicine business |
| Zdroj: | Heart rhythm. 6(11) |
| ISSN: | 1556-3871 |
| Popis: | ase summary 74-year-old male patient who had undergone initial lacement of a dual-chamber ICD (Guidant Vitality DR) n 2002 presented with ischemic cardiopathy, complete V block, and a history of ventricular tachycardia. Beause the device displayed a replacement indicator, the atient was readmitted for ICD replacement in February 009. Both atrial and ventricular leads showed normal arameters: pacing thresholds of 0.4 and 1 V, and imedances of 463 and 722 , respectively. Atrial signal mplitude was 1.6 mV; ventricular signal amplitude was ot measurable because the patient was totally pacing ependent. With the patient under general anesthesia, a Boston Scintific TELIGEN F110 dual-chamber ICD was implanted asily. Both leads were reused. Defibrillation testing was erformed systematically in order to assess response to entricular fibrillation (VF), including detection, shock efectiveness, and posttherapy ventricular pacing (Figure 1A). he absence of ventricular pacing after the end of the 0-second posttherapy pacing period required immediate rogramming to VOO mode because of the patient’s pacing ependence (Figures 1B and 1C). Electrograms and marker analysis indicated cross-talk in he ventricular channel that caused ventricular sensing of trial pacing immediately following shock delivery. During he posttherapy period (nominally at 30 seconds), atrial |
| Databáze: | OpenAIRE |
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