Incidence, determinants, and impact of in-hospital complications during percutaneous patent foramen ovale closure

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Abstract Introduction The incidence, types, determinants, and clinical impact of in-hospital complications after contemporary patent foramen ovale (PFO) percutaneous closure is unclear. Purpose To describe the incidence, types, determinants, and clinical impact of in-hospital complications after percutaneous PFO closure. Methods This study included consecutive patients undergoing PFO percutaneous closure for any indication in 18 centers in France and Italy from the ongoing AIR-FORCE registry. Periprocedural complications were collected, including death, bleeding, myocardial infarction (MI), supraventricular arrhythmia, pericardial effusion or tamponade, cardiac perforation, device embolization, intracardiac thrombus, venous thrombosis, atrioventricular block, brachial paraesthesia, oesophageal hematoma, and veno-arterial fistula. Determinants of periprocedural complications were evaluated using a logistic multivariate model. The clinical impact of periprocedural complications on cardiovascular events after discharge measured by the composite endpoint of death, stroke, transient ischemic attack, MI atrial arrhythmia, pulmonary embolism, deep veinous thrombosis, BARC ≥2 bleeding, or percutaneous or surgical re-intervention on the PFO) at longest follow-up was evaluated using a Cox model adjusted on age, sex, body mass index, diabetes mellitus, hypertension, dyslipidemia, and shunt severity prior to closure. Results We analyzed a total of 2,799 patients undergoing PFO closure with median age 50.7 [41.7-58.6] years and 57.9% male. A total of 109 (3.9% 95%CI 3.2%-4.7%) patients presented at least one in-hospital complication, the most frequent being supraventricular arrhythmia in 39 (1.4% 95%CI 1.0-1.9%) patients and BARC bleeding type ≥2 in 26 (0.9% 95%CI 0.6-1.4%) patients. Determinants of in-hospital complications were older age (per on year aOR 1.02 95%CI 1.01-1.04), diabetes mellitus (aOR 2.58 95%CI 1.36-4.89) and PFO closure for secondary prevention of an arterial embolic event (aOR 2.12 95%CI 1.18-3.82). With a median follow-up of 1.1 [0.3-3.1] years, the occurrence of an in-hospital complication was associated with an increased risk of cardiovascular events after discharge (aHR 1.90 95%CI 1.26-2.89) (Figure 1). Conclusions Although relatively rare, the occurrence of in-hospital complication during PFO percutaneous closure is associated with an increased risk of cardiovascular events in the year following the procedure.

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