Arrhythmias & electrophysiology

Prevalence of glucose metabolism disorders and its association with left atrial remodelling before and after catheter ablation in patients with atrial fibrillation

EuropacePublished Prospective cohort study

Authors' conclusion

Approximately 65% of patients with AF who underwent their first CA had abnormal glucose metabolism. Patients with DM had significantly impaired LA function compared with non-DM patients. Impaired glucose tolerance/IFG as well as DM carries significant risk of unfavourable LA reverse remodelling.

Study context

Population
Patients with atrial fibrillation (AF) undergoing first catheter ablation157 without known diabetes mellitus (DM) had OGTT
Participants
204 patients
Exposure
Normal glucose tolerance (NGT) vs impaired glucose tolerance (IGT)/impaired fasting glucose (IFG) vs DM
Outcome
Prevalence of glucose metabolism disorders (OGTT in patients without known DM)
Methodological detailsconsecutive patients
  • Consecutive patients

Main finding

As reported in the abstract

Abnormal glucose metabolism

Abnormal glucose metabolism, all patients

65.2%

OGTT-identified abnormal glucose metabolism (11 new DM, 74 IGT, 1 IFG)

86

Observational data: associations, not effects.

Further findings

LA reverse remodelling (≥15% decrease in LA volume index) · 6 months after CA — NGT vs IGT/IFG and DM

P = 0.006

Baseline left atrial (LA) function (LA reservoir strain, LA stiffness) · before catheter ablation (CA)

DM had worst LA reservoir strain and LA stiffness
both P < 0.05
No significant difference in baseline LA parameters between NGT and IGT/IFG

LA reverse remodelling (≥15% decrease in LA volume index) · 6 months after CA

DM and IFG/IGT carry significant risk of lack of LA reverse remodelling independent of baseline LA size and AF recurrence

Original publication

Prevalence of glucose metabolism disorders and its association with left atrial remodelling before and after catheter ablation in patients with atrial fibrillation. Europace. Published 8 May 2023. doi:10.1093/europace/euad119

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