Key result
Rheumatic heart disease accounts for ~74% of AF cases, most frequently presenting with dyspnea.
Why the study?
The study aimed to detect the various etiologies and clinical presentations of atrial fibrillation and to assess the relationship between AF and left atrial size by echocardiography.
Cohort (n=100)
No
In this cohort, atrial fibrillation was most commonly associated with dyspnea and an enlarged left atrium (>4 cm), with rheumatic heart disease being the primary etiology in younger patients.
Answers are grounded in this paper and cite their sources.
AF etiology and LA size associations in this cohort are hypothesis-generating; leaves open need for validation before informing practice.
Atrial fibrillation (AF) is one of the commonest sustained cardiac arrhythmia characterized by presence of multiple, interacting reentry circuits looping around the atria.The aim of the study is to detect the various etiology of AF and to know various clinical presentations in AF and also to find out the relationship between AF and left atrial size based on echocardiography.A prospective observational cohort study was carried out with a total of 100 subjects presented to medical and ICUs of RIMS-kadapa between august 2017-august 2018.Dyspnoea (88%) was the commonest symptom.In this study L.A. Size ranges from 3 cm to 7.8 cm.Most of the cases the L.A. commonly associated with MR.Our study concludes that in this area of region females are more prone to AF.The group suffering with AF is from 21-50 yrs.RHD is the common cause of AF in young age where as HTN&IHD is common in old age.Common complication observed is CCF.AF is commonly seen in patients with left atrial size > 4 cm (74%) on echocardiogram.
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J Radhika (2018) conducted a cohort in Atrial fibrillation (n=100). Atrial fibrillation was evaluated on Etiology and clinical presentation. Rheumatic heart disease was the most common etiology of atrial fibrillation (74%), with dyspnea as the most frequent symptom (88%) and left atrial enlargement >4 cm present in 74% of cases.
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