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August 1, 2026CJC OpenOpen Access

POAF after thoracic surgery is linked to a ~31% rate of late-occurring AF.

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Why the study?

Whether the clinical impact of postoperative AF differs according to the type of thoracic surgery was unclear.

Does the risk of late-occurring atrial fibrillation following postoperative atrial fibrillation differ by the type of open thoracic surgery?

Population

2424 consecutive patients undergoing thoracic aortic, esophageal, or lung surgery

Comparison

POAF across thoracic aortic vs esophageal vs lung surgery, and POAF vs without POAF

Design

Observational cohort study

Key result

Late-occurring atrial fibrillation was observed in 31.0% of patients with postoperative AF versus 3.3% without, though recurrence rates differed significantly by the type of thoracic surgery.

Authors

MKManabu KashiwagiKHKentaro HondaKHKeiji Hayata

Discussion

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Overview

May warrant surgery-specific AF surveillance after POAF; leaves open tailored strategies pending prospective validation.

Study Design

Type

Cohort (n=2,424)

Structured PICO

Does the risk of late-occurring atrial fibrillation following postoperative atrial fibrillation differ by the type of open thoracic surgery?

P
Population
2,424 consecutive patients who underwent thoracic aortic, esophageal, or lung surgery between 2010 and 2023.
E
Exposure
Postoperative atrial fibrillation (POAF) following thoracic aortic, esophageal, or lung surgery
C
Comparator
Patients without POAF, and comparison across different types of thoracic surgery
O
Outcome
Late-occurring atrial fibrillation (defined as an electrocardiogram-documented AF event lasting ≥30s or the entire 12-lead standard electrocardiogram after 30 days postoperatively)

Main Result

Absolute Event Rate: 31% vs 3.3%

The risk of late-occurring atrial fibrillation following postoperative AF varies significantly depending on the type of thoracic surgery, suggesting that long-term monitoring and management strategies should be tailored to the surgical context.

Cite This Study

Kashiwagi et al. (2026) conducted a cohort in Postoperative atrial fibrillation after open thoracic surgery (n=2,424). Postoperative atrial fibrillation (POAF) vs. No POAF was evaluated on Late-occurring atrial fibrillation (>30 days postoperatively). Late-occurring atrial fibrillation was observed in 31.0% of patients with postoperative AF versus 3.3% without, though recurrence rates differed significantly by the type of thoracic surgery.

synapsesocial.com/papers/6a84aef48609eae813bcc00fhttps://doi.org/10.1016/j.cjco.2026.08.002
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