Transcoronary pacing to assess myocardial viability prior to percutaneous coronary intervention: Pilot study to assess feasibility
| Autor: | Stephen B. Wheatcroft, Hannah Law, Andrew J. Hogarth, U. Mohanaraj Sivananthan, Muzahir H. Tayebjee, Robert Bowes, James O'Neill, Ananth Kidambi, Ian Pearson |
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| Rok vydání: | 2017 |
| Předmět: |
Adult
medicine.medical_specialty Post hoc medicine.medical_treatment Pilot Projects Coronary stenosis Coronary Artery Disease 030204 cardiovascular system & hematology 03 medical and health sciences 0302 clinical medicine Percutaneous Coronary Intervention Predictive Value of Tests Internal medicine Electric Impedance Medicine Humans Radiology Nuclear Medicine and imaging 030212 general & internal medicine Prospective Studies Aged Tissue Survival business.industry Myocardium Significant difference Cardiac Pacing Artificial Coronary Stenosis Percutaneous coronary intervention General Medicine Middle Aged Magnetic Resonance Imaging Conventional PCI Cardiology Feasibility Studies Cardiology and Cardiovascular Medicine business Electrophysiologic Techniques Cardiac |
| Zdroj: | Catheterization and cardiovascular interventions : official journal of the Society for Cardiac AngiographyInterventions. 92(2) |
| ISSN: | 1522-726X |
| Popis: | Background The assessment of myocardial viability is crucial before percutaneous coronary intervention (PCI) is carried out to ensure that the patient will gain benefit. Trans-coronary pacing (TCP) has previously been used to pace myocardium but may also provide information on myocardial viability. Methods Patients with a single, significant coronary stenosis requiring PCI were recruited. They underwent a cardiac MRI to assess myocardial viability. Prior to PCI, a coronary guidewire was used to measure pacing threshold, impedance, and R-wave amplitude in different myocardial segments to determine any association between the electrical parameters and myocardial viability. Results Eight patients were recruited and six patients underwent intervention. Pacing sensitivity did not demonstrate statistically significant differences between normal and scarred myocardium. Impedance demonstrated a mean of 304.8 ± 74.0 Ω in normal myocardium (NM), 244.1 ± 66.6 Ω in |
| Databáze: | OpenAIRE |
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