Potassium Disturbances and Risk of Ventricular Fibrillation Among Patients With ST‐Segment–Elevation Myocardial Infarction

Background Potassium disturbances per se increase the risk of ventricular fibrillation (VF). Whether potassium disturbances in the acute phase of ST‐segment–elevation myocardial infarction (STEMI) are associated with VF before primary percutaneous coronary intervention (PPCI) is uncertain. Methods a...

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Main Authors: Mia Ravn Jacobsen, Reza Jabbari, Charlotte Glinge, Niels Kjær Stampe, Jawad Haider Butt, Paul Blanche, Jacob Lønborg, Olav Wendelboe Nielsen, Lars Køber, Christian Torp‐Pedersen, Frants Pedersen, Jacob Tfelt‐Hansen, Thomas Engstrøm
Format: Article
Language:English
Published: Wiley 2020-02-01
Series:Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Subjects:
Online Access:https://www.ahajournals.org/doi/10.1161/JAHA.119.014160
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author Mia Ravn Jacobsen
Reza Jabbari
Charlotte Glinge
Niels Kjær Stampe
Jawad Haider Butt
Paul Blanche
Jacob Lønborg
Olav Wendelboe Nielsen
Lars Køber
Christian Torp‐Pedersen
Frants Pedersen
Jacob Tfelt‐Hansen
Thomas Engstrøm
author_facet Mia Ravn Jacobsen
Reza Jabbari
Charlotte Glinge
Niels Kjær Stampe
Jawad Haider Butt
Paul Blanche
Jacob Lønborg
Olav Wendelboe Nielsen
Lars Køber
Christian Torp‐Pedersen
Frants Pedersen
Jacob Tfelt‐Hansen
Thomas Engstrøm
author_sort Mia Ravn Jacobsen
collection DOAJ
description Background Potassium disturbances per se increase the risk of ventricular fibrillation (VF). Whether potassium disturbances in the acute phase of ST‐segment–elevation myocardial infarction (STEMI) are associated with VF before primary percutaneous coronary intervention (PPCI) is uncertain. Methods and Results All consecutive STEMI patients were identified in the Eastern Danish Heart Registry from 1999 to 2016. Comorbidities and medication use were assessed from Danish nationwide registries. Potassium levels were collected immediately before PPCI start. Multivariate logistic models were performed to determine the association between potassium and VF. The main analysis included 8624 STEMI patients of whom 822 (9.5%) had VF before PPCI. Compared with 6693 (77.6%) patients with normokalemia (3.5–5.0 mmol/L), 1797 (20.8%) patients with hypokalemia (<3.5 mmol/L) were often women with fewer comorbidities, whereas 134 (1.6%) patients with hyperkalemia (>5.0 mmol/L) were older with more comorbidities. After adjustment, patients with hypokalemia and hyperkalemia had a higher risk of VF before PPCI (odds ratio 1.90, 95% CI 1.57–2.30, P<0.001) and (odds ratio 3.36, 95% CI 1.95–5.77, P<0.001) compared with normokalemia, respectively. Since the association may reflect a post‐resuscitation phenomenon, a sensitivity analysis was performed including 7929 STEMI patients without VF before PPCI of whom 127 (1.6%) had VF during PPCI. Compared with normokalemia, patients with hypokalemia had a significant association with VF during PPCI (odds ratio 1.68, 95% CI 1.01–2.77, P=0.045) after adjustment. Conclusions Hypokalemia and hyperkalemia are associated with increased risk of VF before PPCI during STEMI. For hypokalemia, the association may be independent of the measurement of potassium before or after VF.
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spelling doaj.art-216fcebe3ad94dc48a2e3207a37d0abe2023-03-13T05:25:33ZengWileyJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease2047-99802020-02-019410.1161/JAHA.119.014160Potassium Disturbances and Risk of Ventricular Fibrillation Among Patients With ST‐Segment–Elevation Myocardial InfarctionMia Ravn Jacobsen0Reza Jabbari1Charlotte Glinge2Niels Kjær Stampe3Jawad Haider Butt4Paul Blanche5Jacob Lønborg6Olav Wendelboe Nielsen7Lars Køber8Christian Torp‐Pedersen9Frants Pedersen10Jacob Tfelt‐Hansen11Thomas Engstrøm12Department of Cardiology, Rigshospitalet Copenhagen University Hospital Copenhagen DenmarkDepartment of Cardiology, Rigshospitalet Copenhagen University Hospital Copenhagen DenmarkDepartment of Cardiology, Rigshospitalet Copenhagen University Hospital Copenhagen DenmarkDepartment of Cardiology, Rigshospitalet Copenhagen University Hospital Copenhagen DenmarkDepartment of Cardiology, Rigshospitalet Copenhagen University Hospital Copenhagen DenmarkDepartment of Cardiology, Rigshospitalet Copenhagen University Hospital Copenhagen DenmarkDepartment of Cardiology, Rigshospitalet Copenhagen University Hospital Copenhagen DenmarkDepartment of Cardiology Bispebjerg and Frederiksberg University Hospital Copenhagen DenmarkDepartment of Cardiology, Rigshospitalet Copenhagen University Hospital Copenhagen DenmarkDepartment of Cardiology Aalborg University Hospital Aalborg DenmarkDepartment of Cardiology, Rigshospitalet Copenhagen University Hospital Copenhagen DenmarkDepartment of Cardiology, Rigshospitalet Copenhagen University Hospital Copenhagen DenmarkDepartment of Cardiology, Rigshospitalet Copenhagen University Hospital Copenhagen DenmarkBackground Potassium disturbances per se increase the risk of ventricular fibrillation (VF). Whether potassium disturbances in the acute phase of ST‐segment–elevation myocardial infarction (STEMI) are associated with VF before primary percutaneous coronary intervention (PPCI) is uncertain. Methods and Results All consecutive STEMI patients were identified in the Eastern Danish Heart Registry from 1999 to 2016. Comorbidities and medication use were assessed from Danish nationwide registries. Potassium levels were collected immediately before PPCI start. Multivariate logistic models were performed to determine the association between potassium and VF. The main analysis included 8624 STEMI patients of whom 822 (9.5%) had VF before PPCI. Compared with 6693 (77.6%) patients with normokalemia (3.5–5.0 mmol/L), 1797 (20.8%) patients with hypokalemia (<3.5 mmol/L) were often women with fewer comorbidities, whereas 134 (1.6%) patients with hyperkalemia (>5.0 mmol/L) were older with more comorbidities. After adjustment, patients with hypokalemia and hyperkalemia had a higher risk of VF before PPCI (odds ratio 1.90, 95% CI 1.57–2.30, P<0.001) and (odds ratio 3.36, 95% CI 1.95–5.77, P<0.001) compared with normokalemia, respectively. Since the association may reflect a post‐resuscitation phenomenon, a sensitivity analysis was performed including 7929 STEMI patients without VF before PPCI of whom 127 (1.6%) had VF during PPCI. Compared with normokalemia, patients with hypokalemia had a significant association with VF during PPCI (odds ratio 1.68, 95% CI 1.01–2.77, P=0.045) after adjustment. Conclusions Hypokalemia and hyperkalemia are associated with increased risk of VF before PPCI during STEMI. For hypokalemia, the association may be independent of the measurement of potassium before or after VF.https://www.ahajournals.org/doi/10.1161/JAHA.119.014160potassium disturbancesST‐segment–elevation myocardial infarctionventricular fibrillation
spellingShingle Mia Ravn Jacobsen
Reza Jabbari
Charlotte Glinge
Niels Kjær Stampe
Jawad Haider Butt
Paul Blanche
Jacob Lønborg
Olav Wendelboe Nielsen
Lars Køber
Christian Torp‐Pedersen
Frants Pedersen
Jacob Tfelt‐Hansen
Thomas Engstrøm
Potassium Disturbances and Risk of Ventricular Fibrillation Among Patients With ST‐Segment–Elevation Myocardial Infarction
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
potassium disturbances
ST‐segment–elevation myocardial infarction
ventricular fibrillation
title Potassium Disturbances and Risk of Ventricular Fibrillation Among Patients With ST‐Segment–Elevation Myocardial Infarction
title_full Potassium Disturbances and Risk of Ventricular Fibrillation Among Patients With ST‐Segment–Elevation Myocardial Infarction
title_fullStr Potassium Disturbances and Risk of Ventricular Fibrillation Among Patients With ST‐Segment–Elevation Myocardial Infarction
title_full_unstemmed Potassium Disturbances and Risk of Ventricular Fibrillation Among Patients With ST‐Segment–Elevation Myocardial Infarction
title_short Potassium Disturbances and Risk of Ventricular Fibrillation Among Patients With ST‐Segment–Elevation Myocardial Infarction
title_sort potassium disturbances and risk of ventricular fibrillation among patients with st segment elevation myocardial infarction
topic potassium disturbances
ST‐segment–elevation myocardial infarction
ventricular fibrillation
url https://www.ahajournals.org/doi/10.1161/JAHA.119.014160
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