Journals / Anadolu Kardiyoloji Dergisi / 2011 / Cilt: 11 - Sayı: 1

Relationship between coronary collateral circulation and plasma levels of N-terminal pro-B-type natriuretic peptide

Koroner kollateral dolaşım ve plazma N-terminal pro-B-tipi natriüretik peptit düzeyleri arasındaki ilişki

Pages
29–33
Publication Date
2022-10-10
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

Results: Overall 57 patients were found to have poor CCC and 73 patients have good CCC.

📌 3 Key Takeaways

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Objective & Hypothesis:There have been numerous investigations demonstrating protective effects of awell- grown coronary collateral circulation (CCC) on left ventricular systolic function.
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Key Findings & Data:N-terminal pro-B-type natriuretic peptide (NT-pro-BNP) is released by ventricular myocardium as a result of increased myocardial wall stress.
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Conclusion & Impact:Results: Overall 57 patients were found to have poor CCC and 73 patients have good CCC.
🔬Design:Research Article
📍Scope:2008 Verileri
⚙️Variables:Domain Parameters

Abstract

There have been numerous investigations demonstrating protective effects of awell- grown coronary collateral circulation (CCC) on left ventricular systolic function. N-terminal pro-B-type natriuretic peptide (NT-pro-BNP) is released by ventricular myocardium as a result of increased myocardial wall stress. The aim of the study was to evaluate the relationship between CCC and plasma NT-pro-BNP levels. Methods: Study group was retrospectively selected from patients who had a coronary angiography at our center between January 2008 and December 2009. One hundred and thirty patients having at least one totally occluded main coronary artery were included in this study. Collateral circulation was graded according to Rentrop score. Grade 0 and 1 are regarded as poor, and grade 2 and 3 - good CCC. Plasma NT-pro-BNP levels were measured by electrochemiluminescence immunoassay method and left ventricular ejection fraction (LVEF) were measured by modified Simpson method. We used Chi-square, Student t and Mann-Whitney-U tests for statistical analysis. Results: Overall 57 patients were found to have poor CCC and 73 patients have good CCC. Plasma NT-pro-BNP levels (pg/ml)-median (minimum-maximum)- were 1319 (48-9753) in poor CCC group and 847 (16-5529) in good CCC group (p=0.004). LVEF was found to be -median (minimum-maximum)- 45% (30-55%) in poor CCC group and 50% (30-60%) in good CCC group (p=0.003). Correlation analysis demonstrated that collateral grade was negatively correlated with NT-pro-BNP levels (r=-0.252, p=0.004). Conclusion: We found that plasma NT-pro-BNP levels were more elevated in patients with poor CCC than in patients with good CCC. This finding may be explained with the protective effect of good CCC on LVEF.

Özet

İyi gelişmiş koroner kollateral dolaşımın sol ventrikül fonksiyonları üzerine olumlu ve koruyucu etkileri birçok çalışmada ortaya konulmuştur. N-terminal pro-B-tipi natriüretik peptit (NT-pro-BNP) ventrikül duvarından gerilmeye cevap olarak salgılanır. Çalışmamızın amacı; koroner arter hastalıklı hastalarda kollateral akımın NT-pro-BNP düzeyleri ile ilişkisini araştırmaktır. Yöntemler: Çalışma grubumuz, Ocak 2008 ile Aralık 2009 tarihleri arasında merkezimizde koroner anjiyografisi yapılan hastalar arasından geriye dönük olarak seçildi. En az bir majör koroner arteri tam tıkalı olan 130 hasta çalışmaya alındı. Kollateral sınıflaması Rentrop sınıflamasına göre yapıldı. Rentrop 0 ve 1 yetersiz, Rentrop 2 ve 3 yeterli kollateral akım olarak değerlendirildi. Hastaların plazma NT-pro-BNP ölçümleri elektrokemiluminesan immünassay yöntemiyle yapıldı. Sol ventrikül ejeksiyon fraksiyonu (LVEF) modifiye Simpson metodu ile hesaplandı. Gruplar arası karşılaştırmalarda Ki-kare, Mann-Whitney U testi ve Student t-testi kullanıldı. Bulgular: Toplam 130 hastanın 57’si yetersiz, 73’ü yeterli kollateral akıma sahipti. Yetersiz kollateral akıma sahip olan hastaların NT-pro-BNP değerleri-ortanca (minimum-maksimum)- 1319 (48-9753) pg/ml, yeterli kollateral akıma sahip olan hastalarda 847 (16-5529) pg/ml olarak bulundu (p=0.004). Yetersiz kollateral akıma sahip olan hastaların LVEF değerleri,-ortanca (minimum-maksimum)- %45 (%30-55), yeterli kollateral akıma sahip olan hastaların ise %50 (%30-60) olarak bulundu (p=0.003). Korelasyon analizinde kollateral grubu ile plazma NT-pro-BNP düzeyleri arasında ters yönde anlamlı bir ilişki saptandı (r=-0.252, p=0.004). Sonuç: Yeterli kollateral akıma sahip hasta grubunda, plazma NT-pro-BNP düzeylerini yetersiz kollateral akıma sahip hasta grubundakinden daha düşük bulundu. Bu bulgu, yeterli kollateral akımın sol ventrikül sistolik fonksiyonlarını koruyucu etkisiyle açıklanabilir.

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Cite This Article

ÇELİK, A., KADI, H., KOÇ, F., CEYHAN, K. (2022). Relationship between coronary collateral circulation and plasma levels of N-terminal pro-B-type natriuretic peptide. Anadolu Kardiyoloji Dergisi, Cilt: 11 - Sayı: 1, 29–33. https://ajindex.com/articles/436684

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