Clinical outcomes of atrial tachyarrhythmia hospitalizations with and without prior thoracic irradiation

Category	Detail
Condition	Atrial Tachyarrhythmias
Key Mechanisms	Radiation-induced cardiac injury leading to arrhythmogenic substrate.
Target Population	Patients with a history of thoracic radiation therapy.
Care Setting	Inpatient hospital settings.

Higher odds of in-hospital mortality in patients with prior thoracic radiation therapy (aOR 1.97).
Longer length of stay associated with prior thoracic radiation therapy (+0.30 days).
Increased likelihood of palliative consultation (aOR 2.60) and DNR status (aOR 1.97) in irradiated patients.
Lower odds of acute kidney injury in patients with prior thoracic radiation therapy (aOR 0.66).
No significant difference in total hospital costs between groups.

Utilize ICD-10 codes for identification of atrial fibrillation or flutter hospitalizations.

Consider the history of thoracic radiation therapy when managing atrial tachyarrhythmias.

Monitor for increased mortality risk and length of stay in patients with prior thoracic radiation.

Be aware of the potential for higher in-hospital mortality and complex care needs in irradiated patients.

Patients hospitalized for atrial fibrillation or flutter with documented prior thoracic irradiation.

Increased complexity in management due to prior radiation therapy.

Implement propensity score matching and multivariable adjustment in analyses of arrhythmia-related hospitalizations.
Recognize the potential for radiation-associated structural heart disease in treatment planning.

Clinical Scorecard: Hospitalization Outcomes for Atrial Tachyarrhythmias in Patients with and without Previous Thoracic Radiation Therapy