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The importance of t...
The importance of the longest R-R interval on 24-hour electrocardiography in mortality prediction in patients with atrial fibrillation
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- Zyśko, Dorota (författare)
- Wrocław Medical University
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- Persson, Anders (författare)
- Lund University,Lunds universitet,Kardiovaskulär forskning - epidemiologi,Forskargrupper vid Lunds universitet,Cardiovascular Research - Epidemiology,Lund University Research Groups
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- Obremska, Marta (författare)
- Wrocław Medical University
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- Leśkiewicz, Marcin (författare)
- Wrocław Medical University
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- Fedorowski, Artur (författare)
- Lund University,Lunds universitet,Kardiovaskulär forskning - hypertoni,Forskargrupper vid Lunds universitet,Cardiovascular Research - Hypertension,Lund University Research Groups,Skåne University Hospital
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- Sutton, Richard (författare)
- Imperial College London
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- Johnson, Linda SB (författare)
- Lund University,Lunds universitet,Kardiovaskulär forskning - epidemiologi,Forskargrupper vid Lunds universitet,Cardiovascular Research - Epidemiology,Lund University Research Groups
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(creator_code:org_t)
- 2021
- 2021
- Engelska.
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Ingår i: Kardiologia Polska. - 1897-4279.
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://lup.lub.lu.s...
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https://doi.org/10.3...
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Abstract
Ämnesord
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- BACKGROUND: Heart rate control in atrial fibrillation (AF) is typically assessed by 24-hour electrocardiography (ECG). There are scarce data on the use of 24-hour ECG parameters to predict mortality in AF.AIMS: We aimed to identify 24-hour ECG parameters that predict mortality in AF.METHODS: We enrolled 280 ambulatory patients (mean [SD] age, 72.0 [8.7] years; 57.9% men) with permanent or persistent AF. Data on mortality and pacemaker or defibrillator implantation during follow-up were collected. Predictors of mortality were assessed using the Cox proportional hazards model and C-statistic.RESULTS: Compared with survivors, 78 (28%) patients who died were older, more often had comorbidities, left bundle branch block (LBBB), reduced left ventricular ejection fraction, lower maximum heart rate, a higher number of ventricular extrasystoles, and the longest R-R interval below 2 seconds. Univariate analysis revealed higher mortality in patients with the longest R-R intervals below 2 seconds compared with those with the R-R intervals of 2 seconds or longer (P <0.001). Independent mortality predictors in the regression model included older age, renal failure, history of coronary intervention, chronic obstructive pulmonary disease, LBBB, and a high number (≥770) or absence of R-R intervals of at least 2 seconds. The area under curve (AUC) for mortality prediction increased after inclusion of ECG parameters 0.748 [95% CI, 0.686-0.810] vs 0.688 [95% CI, 0.618-0.758]; P = 0.02).CONCLUSIONS: A high number of R-R intervals longer than 2 seconds or their absence on 24-hour ECG may predict mortality in AF.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Kardiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cardiac and Cardiovascular Systems (hsv//eng)
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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