Turkiye Klinikleri Journal of Medical Sciences

.: ORIGINAL RESEARCH
The Relationship Between QT Prolongation and Short Term Prognosis in Patients with Subarachnoid Hemorrhage Due to Aneursym Rupture
Anevrizma Kanamasına Bağlı Subaraknoid Kanamalarda QT Uzaması ile Prognoz İlişkisi
H.Önder OKAYa, Mehmet SEÇERa, Gürkan KUTUCULAROĞLUb, Ali DALGIÇa, Ergün DAĞLIOĞLUa, Çağatay ÖZDÖLa, Osman Arıkan NACARa, Rıfat AKDAĞa, Fikret ERGÜNGÖRa
aNeurosurgery Clinics,
bCardiology Clinics, Ankara Numune Education and Research Hospital, Ankara
Turkiye Klinikleri J Med Sci. 2009;29(1):123-7
Article Language: EN
Full Text
ABSTRACT
Objective: Electrocardiographic (ECG) abnormalities and rhythm disorders are frequently observed in the acute phase of spontaneous subarachnoid hemorrhage (SAH). The pathophysiology of these abnormalities is considered to be related with the imbalance in autonomic cardiovascular control. There is no study yet showing the prognostic relevance of corrected QT interval (QTc) prolongation following subarachnoid hemorrhage in the Turkish population. Material and Methods: This retrospective study consisted of 33 SAH patients (7 male and 26 female) who were operated for aneurysm rupture in the Department of Neurosurgery between 2003 and 2005. Early ECG alterations of patients were evaluated by a cardiologist who was blinded for the prognosis of patients. We examined the relationship between prognosis and ECG findings. Results: Of the 33 SAH patients, those who died during hospitalization constituted the mortal group (n= 9), and the remaining patients the as survived group (n= 24). Baseline characteristics of the 2 groups were similar, however mean QTc values of mortal patients were significantly higher than in patients that survived (p= 0.034). In correlation analysis, we found that QTc interval was significantly correlated with Glasgow outcome scale (r= -0.39, p= 0.024). Conclusion: ECG should be evaluated in terms of QTc prolongation in SAH patients as a clinical prognostic finding.

Keywords: Subarachnoid hemorrhage; mortality; electrocardiography
ÖZET
Amaç: Spontan subaraknoid kanama (SAK)'nın erken döneminde elektrokardiyografik (EKG) anormallikler ve ritim bozuklukları sık görülmektedir. Bu bozuklukların patofizyolojisinde kardiyovasküler sistemin otonomik kontrolünde dengesizliklerin rol oynadığı düşünülmektedir. Şimdiye kadar Türk popülasyonunda subaraknoid kanamayı takiben düzeltilmiş QT (QTc uzaması) intervalinin prognostik etkisini gösteren çalışma yoktur. Gereç ve Yöntemler: Bu retrospektif çalışma, 2003-2005 yılları arasında beyin cerrahisi kliniğinde anevrizma rüptürü nedeniyle opere edilen 33 SAK hastasını kapsamaktadır (7 erkek, 26 kadın). Hastaların erken EKG değişiklikleri, hastaların prognostik bilgisinden haberi olmayan bir kardiyolog tarafından değerlendirilmiştir. Biz bu çalışmada EKG bulguları ile prongoz arasındaki ilişkiyi inceledik. Bulgular: Toplam 33 hastadan hastane içi dönemde ölenler mortal grubu oluşturuken (n= 9), diğer hastalar sağkalan grubu oluşturmuştur (n= 24). Bu iki grubun bazal özellikleri benzemekle beraber, ölen hastaların ortalama QTc değerleri sağkalan hastalardan anlamlı oranda daha uzun idi (p= 0.034). Korelasyon analizinde, QTc intervali ile Glasgow sonlanım skalası arasında anlamlı bir korelasyon izlendi (r= -0.39, p= 0.024). Sonuç: Klinik olarak prognostik bilgi verebileceğinden, SAK hastalarında EKG, QTc uzaması yönünden değerlendirilmelidir. Anahtar Kelimeler:

Anahtar Kelimeler: Subaraknoid hemoraji; mortalite; elektrokardiyografi

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30.03.2014

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