The value of QRS onset of the outflow tract PVC in V1 and V2 leads recorded in fourth, third, and second intercostal spaces to differentiate main origins of premature ventricular contraction—A prospective cohort study
Abstract Background Electrocardiography (ECG) is now proposed as a simple and cost‐effective tool to determine the location of arrhythmias before ablation. We aimed to examine the value of the QRS onset of outflow tract PVC in V1 and V2 leads recorded in fourth, third, and second intercostal spaces...
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| Format: | Article |
| Language: | English |
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Wiley
2022-07-01
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| Series: | Health Science Reports |
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| Online Access: | https://doi.org/10.1002/hsr2.670 |
| _version_ | 1811308472927518720 |
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| author | Mohammad V. Jorat Farzaneh Vaziri Mani Hassanzadeh Parsa Jorat Zahra Mehdipour Namdar Lobat Ataei Rooyani Amir Aslani Peyman Izadpanah |
| author_facet | Mohammad V. Jorat Farzaneh Vaziri Mani Hassanzadeh Parsa Jorat Zahra Mehdipour Namdar Lobat Ataei Rooyani Amir Aslani Peyman Izadpanah |
| author_sort | Mohammad V. Jorat |
| collection | DOAJ |
| description | Abstract Background Electrocardiography (ECG) is now proposed as a simple and cost‐effective tool to determine the location of arrhythmias before ablation. We aimed to examine the value of the QRS onset of outflow tract PVC in V1 and V2 leads recorded in fourth, third, and second intercostal spaces to differentiate two main origins for premature ventricular contraction (PVC) including right ventricular outflow tract (RVOT) and left ventricular outflow tract (LVOT). Methods In this prospective cohort study, a total of 58 patients were studied, from whom a surface ECG was obtained using V1 and V2 leads in the fourth, third, and second intercostal spaces. ECG and Electrophysiology studie (EPS) data were then recorded and compared to determine the sensitivity and specificity of QRS onset in locating arrhythmias. The reciever operating characterictic (ROC) curve analysis was applied to test diagnostic performance. Results Based on the time of PVC initiation in each of the V1 and V2 leads in the fourth intercostal space, if PVC is recorded earlier in the V1 lead, its source in 95.8% of the patients is RVOT and if PVC preceded the V2 lead, 70.59% of the patients had PVC from LVOT. Comparing of QRS onset in V1 and V2 leadsrecorded from third% and and second intercostal spaces had considerable sensitivity and specificity to determine the origin of the outflow tract PVC (81.82 and 94.12%, respectively) Conclusion Simultaneous recording of outflow tract PVCs from second third and fourth intercostal spaces and comparing their onset can determine the left and right outflow tract PVCs with high sensitivity and specificity. |
| first_indexed | 2024-04-13T09:23:47Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 2398-8835 |
| language | English |
| last_indexed | 2024-04-13T09:23:47Z |
| publishDate | 2022-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Health Science Reports |
| spelling | doaj.art-c4902f1cc861458882bcd35e2a6527572022-12-22T02:52:31ZengWileyHealth Science Reports2398-88352022-07-0154n/an/a10.1002/hsr2.670The value of QRS onset of the outflow tract PVC in V1 and V2 leads recorded in fourth, third, and second intercostal spaces to differentiate main origins of premature ventricular contraction—A prospective cohort studyMohammad V. Jorat0Farzaneh Vaziri1Mani Hassanzadeh2Parsa Jorat3Zahra Mehdipour Namdar4Lobat Ataei Rooyani5Amir Aslani6Peyman Izadpanah7Interventional Electrophysiologist Shiraz University of Medical Sciences Shiraz IranCardiology Department Shiraz University of Medical Sciences Shiraz IranShiraz University of Medical Sciences Shiraz IranShiraz University of Medical Sciences Shiraz IranShiraz University of Medical Sciences Shiraz IranShiraz University of Medical Sciences Shiraz IranInterventional Electrophysiologist Shiraz University of Medical Sciences Shiraz IranCardiology Department Shiraz University of Medical Sciences Shiraz IranAbstract Background Electrocardiography (ECG) is now proposed as a simple and cost‐effective tool to determine the location of arrhythmias before ablation. We aimed to examine the value of the QRS onset of outflow tract PVC in V1 and V2 leads recorded in fourth, third, and second intercostal spaces to differentiate two main origins for premature ventricular contraction (PVC) including right ventricular outflow tract (RVOT) and left ventricular outflow tract (LVOT). Methods In this prospective cohort study, a total of 58 patients were studied, from whom a surface ECG was obtained using V1 and V2 leads in the fourth, third, and second intercostal spaces. ECG and Electrophysiology studie (EPS) data were then recorded and compared to determine the sensitivity and specificity of QRS onset in locating arrhythmias. The reciever operating characterictic (ROC) curve analysis was applied to test diagnostic performance. Results Based on the time of PVC initiation in each of the V1 and V2 leads in the fourth intercostal space, if PVC is recorded earlier in the V1 lead, its source in 95.8% of the patients is RVOT and if PVC preceded the V2 lead, 70.59% of the patients had PVC from LVOT. Comparing of QRS onset in V1 and V2 leadsrecorded from third% and and second intercostal spaces had considerable sensitivity and specificity to determine the origin of the outflow tract PVC (81.82 and 94.12%, respectively) Conclusion Simultaneous recording of outflow tract PVCs from second third and fourth intercostal spaces and comparing their onset can determine the left and right outflow tract PVCs with high sensitivity and specificity.https://doi.org/10.1002/hsr2.670electrocardiographyintercostal spacesPVCstart time |
| spellingShingle | Mohammad V. Jorat Farzaneh Vaziri Mani Hassanzadeh Parsa Jorat Zahra Mehdipour Namdar Lobat Ataei Rooyani Amir Aslani Peyman Izadpanah The value of QRS onset of the outflow tract PVC in V1 and V2 leads recorded in fourth, third, and second intercostal spaces to differentiate main origins of premature ventricular contraction—A prospective cohort study Health Science Reports electrocardiography intercostal spaces PVC start time |
| title | The value of QRS onset of the outflow tract PVC in V1 and V2 leads recorded in fourth, third, and second intercostal spaces to differentiate main origins of premature ventricular contraction—A prospective cohort study |
| title_full | The value of QRS onset of the outflow tract PVC in V1 and V2 leads recorded in fourth, third, and second intercostal spaces to differentiate main origins of premature ventricular contraction—A prospective cohort study |
| title_fullStr | The value of QRS onset of the outflow tract PVC in V1 and V2 leads recorded in fourth, third, and second intercostal spaces to differentiate main origins of premature ventricular contraction—A prospective cohort study |
| title_full_unstemmed | The value of QRS onset of the outflow tract PVC in V1 and V2 leads recorded in fourth, third, and second intercostal spaces to differentiate main origins of premature ventricular contraction—A prospective cohort study |
| title_short | The value of QRS onset of the outflow tract PVC in V1 and V2 leads recorded in fourth, third, and second intercostal spaces to differentiate main origins of premature ventricular contraction—A prospective cohort study |
| title_sort | value of qrs onset of the outflow tract pvc in v1 and v2 leads recorded in fourth third and second intercostal spaces to differentiate main origins of premature ventricular contraction a prospective cohort study |
| topic | electrocardiography intercostal spaces PVC start time |
| url | https://doi.org/10.1002/hsr2.670 |
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