Investigation of changes in electrocardiography before and after free diving

Abstract

Aim: To evaluate the electrocardiographic (ECG) parameters and hemodynamic parameters in predicting the development of arrhythmias after free diving static apnea performance and maximum breath hold.

Material and Methods: Twenty-four volunteer athletes participating in the free diving competition in 2015 (19 males (79.2%) and 5 females (20.8%)) were included in the study. Peripheral O2 saturation (SpO2), heart rate (HR), ECG parameters (PR interval, QRS time, T wave amplitude, corrected QT time, presence of bandle branch block and new bandle branch block development, atrial premature beats, ventricular premature beats) were analyzed.

Results: There was no statistically significant difference between before static apnea measurements (systolic blood pressure (SBP) 124.7 ± 10.8 mmHg, diastolic blood pressure (DBP) 76.5 ± 6.7 mmHg, heart rate (HR) 80.2 ± 13.4 beats / min, SpO2 97.1 ± 0.9%) and after performance (SBP 128.8 ± 13.6 mmHg DBP 78.0 ± 5.9 mmHg, HR 85.8, ± 16.5 beats / min and SpO2 96.7 ± 2.3%)(p = 0.175; p = 0.334; p = 0.104; p = 0.336, respectively).

Conclusion: No significant changes were observed in ECG parameters, heart rate, saturation and blood pressure values evaluated after static apnea performance. These findings can be used to support that the risk of arrhythmia during static apnea does not persist after apnea has ended.

Keywords

• arrhythmia,free diving,electrocardiography

Serbest dalış öncesi ve sonrası elektrokardiyografik değişikliklerin incelenmesi

Abstract

Amaç: Serbest dalış statik apne performansı ile maksimum nefes tutma sonrası aritmi gelişimini öngörmede elektrokardiyografik (EKG) parametreleri ve hemodinamik göstergeleri değerlendirmek.

Gereç ve Yöntemler: Çalışmaya 2015 yılında düzenlenen serbest dalış yarışmasına katılan 24 gönüllü sporcu dahil edilmiştir (19 erkek (%79,2) and 5 kadın (%20,8)). Performans öncesi ve sonrası ( 5. dakikada) periferik O2 satürasyonu ( pO2), kalp hızı (KH), EKG parametreleri ( PR aralığı, QRS süresi, T dalga amplitüdü, düzeltilmiş QT süresi, dal bloğu varlığı ve yeni dal bloğu gelişimi, atriyal erken atım, ventriküler erken atım varlığı) analiz edildi.

Bulgular: Sporcuların statik apne öncesi sistolik kan basınçları (SKB) 124,7±10,8 mmHg, diyastolik kan basınçları (DKB) 76,5±6,7 mmHg, kalp hızı 80,2 ±13,4 atım/dk, pO2 %97,1±0,9 ve performans sonrası SKB 128,8±13,6 mmHg, DKB 78,0 ±5,9 mmHg, KH 85,8±16,5 atım/dk, pO2 %96,7±2,3 arasında istatistiksel olarak anlamlı fark saptanmadı ( sırasıyla p=0,175; p=0,334; p=0,104; p=0,336).

Sonuç: Statik apne performansı sonrası değerlendirilen EKG parametrelerinde, kalp hızında, satürasyon ve tansiyon değerlerinde herhangi bir anlamlı değişiklik izlenmedi. Bu bulgular statik apne esnasında gelişebilecek aritmi riskinin apne sonlandıktan sonra devam etmediğini desteklemede kullanılabilir.

Keywords

• aritmi, serbest dalış,elektrokardiyografi

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