Journals / Anadolu Kardiyoloji Dergisi / 2010 / Cilt: 10 - Sayı: 2

Acil servise başvuran kalp yetersizliği hastalarında BNP düzeyleri ve ekokardiyografik parametrelerin ilişkisi

The relationship between B-type natriuretic peptide levels and echocardiographic parameters in patients with heart failure admitted to the emergency department

Pages
143–149
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)

Our findings are in agreement with the notion that plasma BNP levels are beneficial in the differential diagnosis of patients admitted to emergency service with acute dyspnea.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: Brain natriuretic peptide (BNP) is a peptide, which has recently been used in the differential diagnosis and follow-up of patients with heart failure.
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Key Findings & Data:Detailed transthoracic two-dimensional, Doppler and tissue Doppler echocardiographic studies were then performed within 24 hours of presentation.
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Conclusion & Impact:Our findings are in agreement with the notion that plasma BNP levels are beneficial in the differential diagnosis of patients admitted to emergency service with acute dyspnea.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: Brain natriuretic peptide (BNP) is a peptide, which has recently been used in the differential diagnosis and follow-up of patients with heart failure. Our aim in the present prospective and diagnostic designed study is to investigate the role of BNP in determining the etiology of dyspnea and to evaluate its relation with newer echocardiographic parameters. Methods: Thirty-four patients presenting to the emergency department with dyspnea and fulfilling the Framingham criteria for heart failure were included in the study. Blood samples were obtained in the first hour of presentation for measurement of BNP levels from all patients. Detailed transthoracic two-dimensional, Doppler and tissue Doppler echocardiographic studies were then performed within 24 hours of presentation. Statistical analyses were performed using Student’s t-test for independent samples, Mann Whitney U test and Pearson or Spearman correlation tests. Results: Plasma BNP levels were found to be significantly correlated with left ventricular end-systolic and end-diastolic diameter, left atrial diameter and the degree of mitral insufficiency (r=0.46, p=0.007; r=0.39, p=0.02; r=0.32, p=0.065; r=0.50, p=0.014, respectively). A significant inverse correlation was observed between plasma BNP levels and left ventricular ejection fraction (r=-0.5, p=0.003). When the patients were grouped according to their BNP levels, the mean ejection fraction of the group with BNP levels below median (578 pg/l) was 60.65±13.84%, whereas the mean ejection fraction of the group with BNP levels of 578 pg/l or above (BNP 2) was 49.41±15.26% (p=0.027). Out of parameters reflecting left ventricular diastolic functions, only transmitral Epeak/Apeak ratio was found to be significantly associated with BNP levels (r=0.4, p=0.05). Tissue Doppler study revealed significant correlations between BNP levels and right ventricular basal and midsystolic velocities (r=-0.507, p=0.008; r=-0.562, p=0.005, respectively) while none of the left ventricular tissue velocities displayed significant correlation with BNP values. Conclusion: Plasma BNP levels are found to be significantly associated with conventional echocardiographic parameters reflecting left ventricular systolic and diastolic functions and tissue Doppler velocities reflecting right ventricular functions. Our findings are in agreement with the notion that plasma BNP levels are beneficial in the differential diagnosis of patients admitted to emergency service with acute dyspnea.

Özet

Amaç: Beyin natriüretik peptit (BNP) kalp yetersizliği olan hastaların ayırıcı tanısında ve takibinde kullanılan bir peptitdir. Prospektif ve diyagnostik dizaynı olan bu çalışmada amacımız, BNP’nin nefes darlığının etiyolojisini belirlemedeki rolü ve yeni ekokardiyografik parametrelerle ilişkisini araştırmaktır. Yöntemler: Acil servise nefes darlığı ile başvuran ve kalp yetersizliği yönünden “Framingham” kriterlerine uygun 34 hasta çalışmaya alındı. Tüm hastalardan başvurdukları ilk saat içerisinde BNP düzeyi ölçümü için kan örnekleri alındı ve tüm hastalara başvurudan sonraki 24 saat içinde ayrıntılı transtorasik iki-boyutlu, Doppler ve doku Doppler ekokardiyografi çalışmaları yapıldı. İstatistiksel analizde bağımsız örneklem Student’s t-testi, Mann Whitney U testi ve Pearson veya Spearman testleri kullanıldı. Bulgular: Plazma BNP düzeyleri ile sol ventrikül sistol sonu çapı, diyastol sonu çapı, sol atriyal çap ve mitral yetmezlik derecesi arasında, pozitif yönde istatistiksel olarak anlamlı korelasyon olduğu görüldü (sırası ile r=0.46, p=0.007; r=0.39, p=0.02; r=0.32, p=0.065; r=0.50, p=0.014). Plazma BNP düzeyleri ile sol ventrikül ejeksiyon fraksiyonu arasında negatif yönde anlamlı korelasyon tespit edildi (r=-0.5, p=0.003). Beyin natriüretik peptit medyan değerine göre, hastalar eşit iki gruba bölündüğünde BNP düzeyleri medyan değeri altında olan hastaların ejeksiyon fraksiyonu değerlerinin, BNP düzeyleri medyan değere eşit veya daha fazla olan gruba göre anlamlı derecede yüksek olduğu izlendi (%60.65±13.84 ve %49.41±15.26, p=0.027). Sol ventrikül diyastolik fonksiyonları yansıtan parametrelerden yalnız transmitral Epeak/Apeak değerinin BNP düzeyleri ile anlamlı olarak ilişkili olduğu saptandı (r=0.4, p=0.05). Doku Doppler çalışmasında, sol ventrikülden alınan doku Doppler velositeleri ile BNP düzeyleri arasında anlamlı korelasyon saptanmaz iken, sağ ventrikül bazal ve orta peak sistolik hızları ile BNP düzeyi arasında negatif yönde anlamlı korelasyon olduğu saptandı (sırası ile r=-0.507, p=0.008; r=-0.562, p=0.005). Sonuç: Plazma BNP düzeyleri, sol ventrikül sistolik ve diyastolik fonksiyonları yansıtan konvansiyonel parametreler ile sağ ventrikül fonksiyonlarını yansıtan doku Doppler velositeleri ile anlamlı düzeyde ilişkili bulundu. Bu bulgular acil serviste BNP düzeyleri çalışmasının nefes darlığı ile başvuran hastalarda ayırıcı tanıya yardımcı olabileceğini desteklemektedir.

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Cite This Article

KUNT, M., KARAKILIÇ, E., COŞKUN, F., KEPEZ, A., ABALI, G., TOKGÖZOĞLU, L. (2022). Acil servise başvuran kalp yetersizliği hastalarında BNP düzeyleri ve ekokardiyografik parametrelerin ilişkisi. Anadolu Kardiyoloji Dergisi, Cilt: 10 - Sayı: 2, 143–149. https://ajindex.com/articles/436712

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