RS zamanı ile kronik obstrüktif akciğer hastalığının şiddeti arasındaki ilişki

Amaç: Çalışmamızın amacı, elektrokardiyogramdan ölçülen RS zamanının kronik obstrüktif akciğer hastalığı (KOAH) şiddeti ile ilişkili olup olmadığını belirlemekti. Gereç ve Yöntem: Çalışma popülasyonu, ortalama yaşı 63 ± 10 yıl olan (% 86 erkekti) 100 KOAH hastasından oluştu. Kronik Obstrüktif Akciğer Hastalığına Karşı Küresel Girişim (GOLD) aşamalarına göre bu hastalar hafif ve orta derecede KOAH (GOLD 1–2) grubu (s = 45) ve şiddetli ve çok şiddetli KOAH (GOLD 3–4) grubuna (s = 55) ayrıldı. Bu gruplar birbirleriyle karşılaştırıldı. Bulgular: Şiddetli ve çok şiddetli KOAH'lı hastalarda kalp hızı, P dalga aksı, QRS ekseni, RS zamanı ve sağ dal bloğu insidansı anlamlı olarak daha yüksekti. Çok değişkenli analizde, kalp hızı, P dalga aksı ve RS zamanı (olasılık oranı = 1.081) şiddetli ve çok şiddetli KOAH'ın bağımsız belirleyicileriydi. Alıcı işletim karakteristik eğrisi analizi, şiddetli ve çok şiddetli KOAH tahmini için en iyi RS zaman kesme değerinin, % 69,1 duyarlılık ve % 66,7 özgüllük ile 60 ms olduğunu gösterdi. Sonuç: Bir elektrokardiyogramda basitçe ölçülen RS zamanı, şiddetli ve çok şiddetli KOAH'lı hastaların hızlı tahmini için yararlı bir tarama testi olabilir.

Relationship between RS time and the severity of chronic obstructive pulmonary disease

Purpose: The aim of our study was to determine whether the RS time measured on an electrocardiogram is associated with the severity of chronic obstructive pulmonary disease (COPD). Materials and Methods: The study population was made up of 100 COPD patients with a mean age of 63 ± 10 years (86% were males). These patients were divided into the mild and moderate COPD (GOLD 1–2) group (n = 45) and the severe and very severe COPD (GOLD 3–4) group (n = 55) according to the Global Initiative for Chronic Obstructive Lung Disease (GOLD) stages. These groups were compared with each other. Results: Heart rate, P wave axis, QRS axis, RS time, and incidence of right bundle branch block were significantly higher in patients with severe and very severe COPD. In the multivariable analysis, heart rate, P wave axis, and RS time (odds ratio = 1.081) were the independent predictors of severe and very severe COPD. The receiver operating characteristic curve analysis showed that the best RS time cutoff value for the prediction of severe and very severe COPD was 60 ms, with a sensitivity of 69.1% and a specificity of 66.7%. Conclusion: RS time simply measured on an electrocardiogram may be a useful screening test for the quick estimation of patients with severe and very severe COPD.

Keywords:

chronic obstructive pulmonary disease, electrocardiography, electrophysiology,

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