ĐẶC ĐIỂM LÂM SÀNG, CẬN LÂM SÀNG CỦA BỆNH NHÂN RUNG NHĨ CÓ HỘI CHỨNG NGỪNG THỞ KHI NGỦ TẮC NGHẼN

Abstract

Objective: To describe the clinical and paraclinical characteristics of patients with atrial fibrillation (AF) who have obstructive sleep apnea. Methods: A cross-sectional descriptive study was conducted on 54 patients with atrial fibrillation. All patients underwent overnight respiratory polygraphy to detect OSA. Clinical symptoms and paraclinical parameters were analyzed and compared between the OSA and non-OSA groups. Results: The prevalence of OSA among patients with atrial fibrillation was 57.4% (mild: 24.0%; moderate: 16.7%; severe: 16.7%). Most patients in the OSA group presented with palpitations (87.1%). The mean heart rate was significantly lower in the OSA group compared to the non-OSA group (79.7 ± 19.7 vs. 91.8 ± 32.5 beats per minute; p = 0.046). Regarding paraclinical findings, serum potassium levels were significantly higher in the OSA group (3.92 vs. 3.69 mmol/L; p = 0.010), while other hematological and biochemical indices showed no significant differences. Echocardiography revealed that patients with OSA had a significantly larger left ventricular end-diastolic dimension (96.4 vs. 87.2 mm; p = 0.039). Conclusion: The prevalence of OSA among atrial fibrillation patients was relatively high. OSA was associated with a high rate of palpitations, arrhythmias, and structural cardiac changes detected by echocardiography. Early identification of these clinical and paraclinical features is valuable for guiding OSA screening in patients with atrial fibrillation