Journals / Türk Kardiyoloji Derneği Arşivi / 2020 / Cilt: 48 - Sayı: 2

Relationship between histopathological features of aspirated thrombi and long-term left ventricular function in patients with ST-segment elevation myocardial infarction

ST yükselmeli miyokart enfarktüsü hastalarında çekilen pıhtının histopatolojik özelliklerinin uzun dönem sol ventrikül fonksiyonuyla ilişkisi

Pages
116–126
Publication Date
2022-11-06
DOI
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AI Summary & Key Takeaways

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

In addition, serum markers of inflammation, like hsCRP, might also reflect the intensity of thelocal inflammatory response at the site of occlusion.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: This study was an investigation of the severity ofinflammation (SOI) in aspirated material and thrombus age toexamine any association with pre-discharge and long-term leftventricular (LV) function after ST-elevation myocardial infarction (STEMI).Methods: The study group comprised 25 patients with STEMIfrom whom an occlusive thrombus was aspirated from the infarct-related artery with a 7-F catheter.
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Key Findings & Data:The SOI in the aspirate was determined according to the mean leukocyte countin 5 high-power magnification fields and graded as mild in thepresence of ≤100 leukocytes per field or significant if therewere >100 leukocytes per field.
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Conclusion & Impact:In addition, serum markers of inflammation, like hsCRP, might also reflect the intensity of thelocal inflammatory response at the site of occlusion.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: This study was an investigation of the severity ofinflammation (SOI) in aspirated material and thrombus age toexamine any association with pre-discharge and long-term leftventricular (LV) function after ST-elevation myocardial infarction (STEMI).Methods: The study group comprised 25 patients with STEMIfrom whom an occlusive thrombus was aspirated from the infarct-related artery with a 7-F catheter. The SOI in the aspirate was determined according to the mean leukocyte countin 5 high-power magnification fields and graded as mild in thepresence of ≤100 leukocytes per field or significant if therewere >100 leukocytes per field. The thrombi were categorizedas fresh or lytic/organized (L/O) using predefined criteria.Echocardiographic assessment was performed prior to discharge and at 1 year. Adverse left ventricular remodeling (LVR)was defined as a 20% increase in LV end-diastolic volume incomparison with baseline values.Results: LVR was observed in 8 patients. The mean leukocytecount of the aspirate (127.5±86.0 vs 227.2±120.7; p=0.026)and frequency of significant inflammation (35% vs 75%;p=0.046) were significantly higher in the group with LVR. Theserum high-sensitivity C-reactive protein (hsCRP) level wassignificantly correlated with the leukocyte count of the aspirate (r=0.532; p=0.006). An L/O thrombus was related to betterpre-discharge and long-term LV volumes and ejection fractionvalues compared with a fresh thrombus.Conclusion: A significant increase in the leukocyte count inthe aspirate and a fresh thrombus might predict long-term LVfunctional deterioration irrespective of the clinical and procedure-related characteristics. In addition, serum markers of inflammation, like hsCRP, might also reflect the intensity of thelocal inflammatory response at the site of occlusion.

Özet

Amaç: Bu çalışmada, ST yükselmeli miyokart enfarktüsü (STYME) sonrası emme yöntemiyle alınan pıhtının yaşı ve yangı düzeyinin (YD), taburculuk öncesi ve uzun dönem sol ventrikül (SV) fonksiyonlarıyla olası ilişkisi araştırıldı. Yöntemler: Çalışmaya enfarktüsle ilişkili arterden tıkayıcı pıhtının 7-F kateter yardımıyla alındığı 25 STYME hastası dahil edildi. Pıhtının YD, beş yüksek düzeyde büyütme alanında görülen ortalama lökosit sayısına göre derecelendirildi: alan başına hafif ≤100 lökosit ve belirgin >100 lökosit. Ayrıca, örnek daha önceden tanımlanmış kriterlere göre taze veya litik/ organize (L/O) olarak da sınıflandırıldı. Ekokardiyografik değerlendirme taburculuk öncesi ve birinci yılda yapıldı. Olumsuz sol ventrikül yeniden biçimlenmesi (SVYB), SV diyastol sonu hacminde başlangıç değerine göre %20 artış olması şeklinde tanımlandı. Bulgular: SVYB sekiz hastada gözlendi. Alınan örneğin ortalama lökosit sayımı (127.5±86.0 ve 227.2±120.7; p=0.026) ve belirgin yangısı olan hastaların sıklığı (%35 ve %75; p=0.046) SVYB gözlenen grupta anlamlı olarak daha yüksekti. Serum yüksek duyarlıklı keratin C-reaktif protein (hsCRP) düzeyi, örneğin lökosit sayımıyla anlamlı biçimde orantılıydı (r=0.532, p=0.006). Örneğin L/O yapısı, taze pıhtı varlığına kıyasla daha iyi taburculuk öncesi ve uzun dönem SV hacimleri ve ejeksiyon fraksiyonu değerleriyle ilişkiliydi. Sonuç: Örnekte artmış lökosit sayısı ve taze pıhtı varlığı, klinik ve işlemle ilişkili özelliklerden bağımsız olarak SV fonksiyonlarında uzun dönemde bozulma ile ilişkili olabilir. Bunun yanında, hsCRP gibi serum yangı belirteçleri tıkanıklık bölgesindeki yangısal cevabın şiddetini yansıtabilir.

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Cite This Article

BAYRAM, Z., DOĞAN, C., OMAYGENÇ, M. O., BAKAL, R. B., KARACA, O., HATİPOĞLU, S., TEBER, M. K., ÖZDEMİR, N., KAYMAZ, C., SOY, A. (2022). Relationship between histopathological features of aspirated thrombi and long-term left ventricular function in patients with ST-segment elevation myocardial infarction. Türk Kardiyoloji Derneği Arşivi, Cilt: 48 - Sayı: 2, 116–126. https://ajindex.com/articles/631965

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