Journals / İstanbul Medical Journal / 2021 / Cilt: 22 - Sayı: 4

Evaluation of the Predictive Value of Left Anterior Fascicular Block on Determination of Left Main and/or Proximal Left Anterior Descending Coronary Artery Disease in Patients with Stable Angina: A Propensity Score Matching Analysis

Sol Anterior Fasiküler Bloğun Stabil Anginalı Hastalarda Sol Ana ve/veya Proksimal Sol Ön İnen Koroner Arter Hastalığının Belirlenmesinde Öngördürücü Değerinin Araştırılması: Bir Eğilim Skoru Eşleştirme Analizi

Pages
287–293
Publication Date
2022-10-19
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

It acts as a marker rather than a determinant of obstructive LM and/or pLAD coronary artery lesions.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Introduction: Successful revascularization of lesions located in the left main and/or proximal left anterior descending (LM and/or pLAD) coronary artery improves survival than medical therapy only.
📊
Key Findings & Data:Therefore, accurate identification of highrisk patients with suspected stable angina pectoris is critical for outpatient clinics.
💡
Conclusion & Impact:It acts as a marker rather than a determinant of obstructive LM and/or pLAD coronary artery lesions.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Introduction: Successful revascularization of lesions located in the left main and/or proximal left anterior descending (LM and/or pLAD) coronary artery improves survival than medical therapy only. Therefore, accurate identification of highrisk patients with suspected stable angina pectoris is critical for outpatient clinics. Since the septal perforators of the left anterior descending coronary artery are the main source of blood supply of the left anterior fascicle, we hypothesized that the presence of left anterior fascicular block (LAFB) can predict obstructive stenoses of LM and/or pLAD coronary arteries in patients with suspected stable angina pectoris. Methods: We consecutively enrolled 790 patients referred for invasive coronary angiography due to suspected stable angina pectoris. Results: The number of patients with LAFBs was 68 (8.6%). Furthermore, 218 patients (27.6%) had obstructive coronary artery disease (CAD). The prevalence of obstructive CAD, revascularization with coronary artery bypass graft surgery, and obstructive LM and/or pLAD coronary artery lesions was higher in patients with LAFB. From univariate analysis, the presence of LAFB was significantly associated with predicting obstructive LM and/or pLAD lesions (odds ratio: 3,587; 95% confidence interval: 1,465-5,785; p=0.005). However, this association disappeared after adjustment for other cardiovascular risk factors. Conclusion: In patients with suspected stable angina pectoris, LAFB is not frequently a “normal variant” and is associated with known cardiovascular risk factors. It acts as a marker rather than a determinant of obstructive LM and/or pLAD coronary artery lesions.

Özet

Amaç: Sol ana ve/veya proksimal sol ön inen (LM ve/veya pLAD) koroner arterde yer alan lezyonların başarılı revaskülarizasyonu, yalnızca medikal tedaviye kıyasla sağkalımı artırmaktadır. Bu nedenle, stabil angina pektoris şüphesi olan hastalarda bu bölgelerdeki kritik darlıklar için yüksek riskli hastaların saptanması önemlidir. Sol ön inen koroner arterin septal perforatörleri, sol anterior fasikülün ana kan besleme kaynağı olduğundan, stabil angina pektoris şüphesi olan hastalarda sol anterior fasiküler blok (LAFB) varlığının, LM ve/veya pLAD koroner arterlerinin obstrüktif stenozlarını öngörebileceği hipotez olarak düşünüldü. Yöntemler: Stabil anjina pektoris şüphesi nedeniyle invaziv koroner anjiyografi için sevk edilen ardışık 790 hasta çalışmaya alındı. Bulgular: LAFB’li hasta sayısı 68 (%8,6) idi. Ayrıca 218 hastada (%27,6) obstrüktif koroner arter hastalığı saptandı. LAFB’li hastalarda; obstrüktif koroner arter hastalığı, koroner arter by pass greft cerrahisi ile revaskülarizasyon tedavisi ve obstrüktif LM ve/veya pLAD koroner arter lezyonu prevalansı daha yüksekti. LAFB’nin varlığı, tek değişkenli analizde obstrüktif LM ve/veya pLAD lezyonlarını öngörmede istatiksel olarak önemli bir değişkendi (odds ratio: 3.587; %95 güven aralığı: 1.465- 5.785; p=0,005). Ancak bu ilişki, diğer kardiyovasküler risk faktörleri için düzeltme yapıldıktan sonra ortadan kalktı. Sonuç: Stabil anjina pektoris şüphesi olan hastalarda LAFB “normal bir variant” değildir ve bilinen kardiyovasküler risk faktörleri ile ilişkilidir, ancak obstrüktif LM ve/veya pLAD koroner arter lezyonunun bağımsız bir yordayıcısı olmaktan çok bir belirteç görevi görmektedir.

🔖

Cite This Article

ŞAHİN, S., YILMAZ, A. S., ÇIRAKOĞLU, Ö. F. (2022). Evaluation of the Predictive Value of Left Anterior Fascicular Block on Determination of Left Main and/or Proximal Left Anterior Descending Coronary Artery Disease in Patients with Stable Angina: A Propensity Score Matching Analysis. İstanbul Medical Journal, Cilt: 22 - Sayı: 4, 287–293. https://ajindex.com/articles/551780

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (14)

  1. Benjamin EJ, Muntner P, Alonso A, Bittencourt MS, Callaway CW, Carson AP; American Heart Association Council on Epidemiology and Prevention Statistics Committee and Stroke Statistics Subcommittee. Heart Disease and Stroke Statistics-2019 Update: A Report From the American Heart Association. Circulation 2019; 139: e56-528
  2. Cassar A, Holmes D, Charanjit S, Gersh B. Chronic coronary artery disease: diagnosis and management. Mayo Clin Proc 2009; 84: 1130-46
  3. Tarkin JM, Kaski JC. Pharmacological treatment of chronic stable angina pectoris. Clin Med 2013; 13: 63-70
  4. May O, Schlosser H, Skytte L. A high pressure predicts bleeding complications and a longer hospital stay after elective coronary angiography using the femoral approach. J Interv Cardiol 2009; 22: 175-8
  5. Knuuti J, Wijns W, Saraste A, Capodanno D, Barbato E, Funck-Brentano C, et al; ESC Scientific Document Group. 2019 ESC Guidelines for the diagnosis and management of chronic coronary syndromes. Eur Heart J 2020; 41: 407-77
  6. Patel MR, Peterson ED, Dai D, Brennan JM, Redberg RF, Anderson HV, et al. Low diagnostic yield of elective coronary angiography. N Eng J Med 2010; 362: 886-95
  7. Rosenbaum MB, Elizari MV, Lázzari JO. Los Hemibloqueos. Buenos Aires: Paidos; 1968
  8. Rosenbaum MB, Elizari MV, Lázzari JO. The hemiblocks. Oldsmar, Flor: Tampa Tracings; 1970
  9. Oliveros RA, Seaworth J, Weiland FL, Boucher CA. Intermittent left anterior hemiblock during treadmill exercise test: correlation with coronary arteriogram. Chest 1977; 72: 492-4
  10. Boran KJ, Oliveros RA, Boucher CA, Beckmann CH, Seaworth JF. Ischemiaassociated intraventricular conduction disturbances during exercise testing as a predictor of proximal left anterior descending coronary artery disease. Am J Cardiol 1983; 51: 1098-102
  11. Corne RA, Beamish RE, Rollwagen RL. Significance of left anterior hemiblock. Br Heart J 1978; 40: 552-7
  12. Yano K, Peskoe SM, Rhoads GG, Moore JO, Kagan A. Left axis deviation and left anterior hemiblock among 8,000 Japanese-American men. Am J Cardiol 1975; 35: 809-15
  13. Biagini E, Elhendy A, Schhinkel FL, Nelwan S, Rizzello V, van Domburg RT, et al. Prognostic significance of left anterior hemi-block in patients with suspected coronary artery disease. J Am Coll Cardiol 2005; 46: 858-63
  14. Miller WL, Hodge DO, Hammill SC. Association of uncomplicated electrocardiographic conduction blocks with subsequent cardiac morbidity in a community-based population (Olmsted County, Minnesota). Am J