Value of Screening and Treatment of Sleep Apnea-Hypopnea Syndrome in the Management of Atrial Fibrillation Ablation Candidates

All patients who meet all the inclusion criteria and none of the exclusion will have a Stop-Bang questionnaire to define the risk of having a SAHS The assessment of results classifies people at high, intermediate or low risk of SAHS. Low-risk patients will follow conventional management according to the usual criteria of the Arrhythmia Unit.

Patients with high or intermediate-risk will be given a Kardia© recorder and they will be instructed to obtain records of their cardiac rhythm every 5 days (at any time) and whenever the symptoms are suggestived of arrhythmia. This allows estimating arrhythmic load baseline in these patients.

They will also will be given a 7-channel home respiratory polygraphy (with pulse oximetry record, naso-buccal air flow through nasal cannula and thermistor, snoring, thoracoabdominal movements and electrocardiogram). The day after conducting the home polygraphic record, the patient will be evaluated in the Pneumology Outpatient Department, where risk factors, symptoms and Epworth's sleepiness scale will be assessed, the results of the cardiorespiratory polygraphic record, interpreted by Pneumology Service will be given , and based on the above, the diagnosis of SAHS will be determined.

Those patients diagnosed with SAHS will be treated in the Pneumology Service according to usual practice (dietary hygienic measures, CPAP, etc.).

During all this time, patients will continue using their rhythm recorders as previously. The overall effect of SAHS treatment on AF recurrences (comparison of arrhythmic load in the previous 3 months with that of the 3 months post-treatment) will be evaluated.