Journals / Türk Kardiyoloji Derneği Arşivi / 2005 / Cilt: 33 - Sayı: 4

Koroner arter hastalarında aspirin direnci sıklığı

Evaluation of aspirin resistance in patients with coronary artery disease

Pages
212–216
Publication Date
2022-11-05
DOI
—
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AI Summary & Key Takeaways

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

Conclusion: The effect of aspirin is not always desirable and the sensitivity of platelets to ADP is increased in patients with AR, requiring to individualize the antiplatelet treatment.

📌 3 Key Takeaways

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Objective & Hypothesis:Objectives: Although aspirin is widely used for secondary prevention of cardiovascular disease, its effect is not standard in all patients.
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Key Findings & Data:Study design: The study consisted of 100 patients (28 females, 72 males; mean age 56 years; range 30 to 75 years) who had been on aspirin treatment at least for the past seven days for stable CAD.
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Conclusion & Impact:Conclusion: The effect of aspirin is not always desirable and the sensitivity of platelets to ADP is increased in patients with AR, requiring to individualize the antiplatelet treatment.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objectives: Although aspirin is widely used for secondary prevention of cardiovascular disease, its effect is not standard in all patients. We aimed to evaluate the frequency of aspirin resistance (AR) in patients taking aspirin for stable coronary artery disease (CAD) and the effect of AR on platelet sensitivity to adenosine diphosphate (ADP). Study design: The study consisted of 100 patients (28 females, 72 males; mean age 56 years; range 30 to 75 years) who had been on aspirin treatment at least for the past seven days for stable CAD. Thirty healthy volunteers (10 females, 20 males; mean age 54 years) without a history of aspirin ingestion within the past seven days comprised the control group. Platelet function was measured by the PFA-100 system and the 95th percentile (170 sec) of the control group was defined as the cut-off value of the closure time at the collagen/epinephrine cartridge to determine AR. Results: Twenty-seven patients (27%) were found to have AR. Seventeen patients (17%) showed a prolonged closure time (range 171 sec to 212 sec) with a maximum increase by 25%, while 34 patients (34%) had no closure at the end of 300 sec. Patients with AR also showed an increased platelet sensitivity to ADP as shown by a significantly shorter closure time (70.0 sec) at the collagen/ADP cartridge compared to that of patients without AR (100.4 sec; p=0.007) or controls (79.0 sec; p=0.03). Patients with and without AR did not differ significantly with regard to age, sex, history of hypertension, diabetes mellitus, hyperlipidemia, smoking, family history of CAD, platelet count and mean platelet volume, and blood levels of urea and creatinine (p>0.05). The duration of aspirin usage and its formulation (enteric-coated or not) were not related with AR. Conclusion: The effect of aspirin is not always desirable and the sensitivity of platelets to ADP is increased in patients with AR, requiring to individualize the antiplatelet treatment.

Özet

Amaç: Kardiyovasküler hastalıkların ikincil korunmasında yaygın olarak kullanılmasına rağmen aspirinin etkisi tüm hastalarda aynı düzeyde değildir. Çalışmamızda, aspirin kullanan kararlı koroner arter hastalarında (KAH) aspirin direncinin sıklığı ve aspirinin trombositlerin adenozin difosfata (ADP) duyarlılığına olan etkisi araştırıldı. Çalışma planı: Kararlı koroner arter hastalığı nedeniyle en az son yedi gündür aspirin kullanan 100 hasta (28 kadın, 72 erkek; ort. yaş 56; dağılım 30-75) çalışmaya alındı. Son yedi gün içinde aspirin kullanmamış olan 30 sağlıklı gönüllüden (10 kadın; 20 erkek; ort. yaş 54) kontrol grubu oluşturuldu. Trombosit fonksiyonları PFA-100 cihazı ile değerlendirildi. Aspirin direnci için sınır, kontrol grubunda kollajen/epinefrin kartuşunda ölçülen kapanma zamanı değerlerinin 95. persentiline denk düşen değer (170 sn) olarak kabul edildi. Bulgular: PFA-100 ile 27 hastada (%27) aspirin direnci saptandı. On yedi hastada (%17) kapanma zamanında, en çok %25 olmak üzere, uzama (dağılım 171-212 sn) görüldü; 34 hastada (%34) ise 300 sn sonunda kapanma olmadı. Aspirin direnci görülen hastalarda trombositlerin ADP’ye duyarlılığında anlamlı yükselme vardı; kollajen/ADP kartuşunda ölçülen zaman, aspirin direnci olmayanlar (100.4 sn; p=0.007) ve kontrol grubuna (79.0 sn; p=0.03) göre anlamlı derecede kısa bulundu Aspirin direnci olan ve olmayanlar arasında yaş, cinsiyet, hipertansiyon, diyabetes mellitus, sigara içimi, ailede KAH öyküsü, trombosit sayısı ve ortalama trombosit hacmi, kandaki üre ve kreatinin düzeyleri açısından anlamlı farklılık görülmedi (p>0.05). Aspirin kullanma süresi ve yapısı (enterik kaplı olup olmaması) aspirin direnci ile ilişkili bulunmadı. Sonuç: Aspirin kullanımı her zaman istenen sonucu vermemektedir ve aspirin direnci görülen hastalarda trombositlerin ADP’ye duyarlılığında artış görülmektedir; bu durum anti-trombosit tedavinin bireyselleştirilmesini gerektirebilir.

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Cite This Article

AKSU, H., NORGAZ, T., HOBİKOĞLU, G. F., AKYÜZ, Ü., NARİN, A., AKYOL, A., DAYİ, Ü. Ş., ÖZER, O., NURKALEM, Z., ERTÜRK, M. (2022). Koroner arter hastalarında aspirin direnci sıklığı. Türk Kardiyoloji Derneği Arşivi, Cilt: 33 - Sayı: 4, 212–216. https://ajindex.com/articles/633768

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