Is the Measurement of Accessory Pathway Refractory Period Reproducible?
Introduction: Short accessory pathway (AP) effective refractory period (ERP) is one of the risk factors in Wolff-Parkinson-White syndrome (WPW). The purpose of study was to evaluate the reproducibility of APERP measurement during a same electrophysiological study (EPS). Methods: EPS consisted of 2 A...
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| Format: | Article |
| Language: | English |
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Elsevier
2012-05-01
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| Series: | Indian Pacing and Electrophysiology Journal |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0972629216305010 |
| _version_ | 1811274303958679552 |
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| author | Celine Oliver Beatrice Brembilla-Perrot |
| author_facet | Celine Oliver Beatrice Brembilla-Perrot |
| author_sort | Celine Oliver |
| collection | DOAJ |
| description | Introduction: Short accessory pathway (AP) effective refractory period (ERP) is one of the risk factors in Wolff-Parkinson-White syndrome (WPW). The purpose of study was to evaluate the reproducibility of APERP measurement during a same electrophysiological study (EPS).
Methods: EPS consisted of 2 APERP measurements performed prospectively in 77 patients for a WPW in control state (CS) at a cycle length of 400 ms (n=76) and after isoproterenol (n=56).
Results: In CS, 18 patients (24 %) had the same APERP at both measurements; 41 (54.6 %) had differences from 10 to 40 ms, 17 (22.4 %) had differences >40 ms. Among 45 patients with initial APERP>240 ms, 7 had an APERP≤240 ms at 2nd study. Among 31 patients with initial APERP≤240 ms, 5 had an APERP>240 ms at 2nd study. Pearson’s productmoment correlation was 0.75. After isoproterenol, 5 patients (9 %) had the same APERPs; 37 (66 %) had differences from 10 to 40 ms and 14 had differences >40 ms. Among 38 patients with initial APERP>200 ms, 12 had an AP ERP≤200 ms at 2nd study. Among 18 patients with initial APERP≤200 ms, 10 had still APERP≤200 ms at 2nd study. Pearson’s productmoment correlation was 0.54.
Conclusions: There are important variations of APERPs during EPS mainly after isoproterenol infusion. Therefore the values of APERPs should be interpreted cautiously. |
| first_indexed | 2024-04-12T23:16:33Z |
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| id | doaj.art-d00d1afcd9b0462d880d3a8512b0de4c |
| institution | Directory Open Access Journal |
| issn | 0972-6292 |
| language | English |
| last_indexed | 2024-04-12T23:16:33Z |
| publishDate | 2012-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Indian Pacing and Electrophysiology Journal |
| spelling | doaj.art-d00d1afcd9b0462d880d3a8512b0de4c2022-12-22T03:12:39ZengElsevierIndian Pacing and Electrophysiology Journal0972-62922012-05-011239310110.1016/S0972-6292(16)30501-0Is the Measurement of Accessory Pathway Refractory Period Reproducible?Celine OliverBeatrice Brembilla-PerrotIntroduction: Short accessory pathway (AP) effective refractory period (ERP) is one of the risk factors in Wolff-Parkinson-White syndrome (WPW). The purpose of study was to evaluate the reproducibility of APERP measurement during a same electrophysiological study (EPS). Methods: EPS consisted of 2 APERP measurements performed prospectively in 77 patients for a WPW in control state (CS) at a cycle length of 400 ms (n=76) and after isoproterenol (n=56). Results: In CS, 18 patients (24 %) had the same APERP at both measurements; 41 (54.6 %) had differences from 10 to 40 ms, 17 (22.4 %) had differences >40 ms. Among 45 patients with initial APERP>240 ms, 7 had an APERP≤240 ms at 2nd study. Among 31 patients with initial APERP≤240 ms, 5 had an APERP>240 ms at 2nd study. Pearson’s productmoment correlation was 0.75. After isoproterenol, 5 patients (9 %) had the same APERPs; 37 (66 %) had differences from 10 to 40 ms and 14 had differences >40 ms. Among 38 patients with initial APERP>200 ms, 12 had an AP ERP≤200 ms at 2nd study. Among 18 patients with initial APERP≤200 ms, 10 had still APERP≤200 ms at 2nd study. Pearson’s productmoment correlation was 0.54. Conclusions: There are important variations of APERPs during EPS mainly after isoproterenol infusion. Therefore the values of APERPs should be interpreted cautiously.http://www.sciencedirect.com/science/article/pii/S0972629216305010Wolff-Parkinson-White syndromeaccessory pathwayelectrophysiology |
| spellingShingle | Celine Oliver Beatrice Brembilla-Perrot Is the Measurement of Accessory Pathway Refractory Period Reproducible? Indian Pacing and Electrophysiology Journal Wolff-Parkinson-White syndrome accessory pathway electrophysiology |
| title | Is the Measurement of Accessory Pathway Refractory Period Reproducible? |
| title_full | Is the Measurement of Accessory Pathway Refractory Period Reproducible? |
| title_fullStr | Is the Measurement of Accessory Pathway Refractory Period Reproducible? |
| title_full_unstemmed | Is the Measurement of Accessory Pathway Refractory Period Reproducible? |
| title_short | Is the Measurement of Accessory Pathway Refractory Period Reproducible? |
| title_sort | is the measurement of accessory pathway refractory period reproducible |
| topic | Wolff-Parkinson-White syndrome accessory pathway electrophysiology |
| url | http://www.sciencedirect.com/science/article/pii/S0972629216305010 |
| work_keys_str_mv | AT celineoliver isthemeasurementofaccessorypathwayrefractoryperiodreproducible AT beatricebrembillaperrot isthemeasurementofaccessorypathwayrefractoryperiodreproducible |