Journals / MN Kardiyoloji / 2003 / Cilt: 10 - Sayı: 5

The effect of intravenous aminophylline in acute inferior myocardial infarction complicated with complete atrioventricular block

Atriyoventriküler tam bloklu akut inferior miyokart infarktüsünde intravenöz aminofilinin etkisi

Pages
371–374
DOI
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AI Summary & Key Takeaways

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

We think that studies including more patients are necessary to explain this subject.

📌 3 Key Takeaways

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Objective & Hypothesis:Aim: There are some findings concerning role of increased vagal tonus and increased adenosine production in necrotic tissues in pathogenesis of complete atrioventricular (AV) block in patients with acute inferior myocardial infarction (AIMI) beside ischemic changes in AV junction.
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Key Findings & Data:Material and Methods: 13 patients with AIMI in whom complete AV block that irresponsive to atropine determined in electrocardiography (ECG) were included in study.
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Conclusion & Impact:We think that studies including more patients are necessary to explain this subject.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Akut hastalık · Aminofilin · İlaç uygulama yolları

Abstract

Aim: There are some findings concerning role of increased vagal tonus and increased adenosine production in necrotic tissues in pathogenesis of complete atrioventricular (AV) block in patients with acute inferior myocardial infarction (AIMI) beside ischemic changes in AV junction. In our study, we aimed to show the early phase effects of intravenous aminophylline which is a competitive antagonist of adenosine in patients with AIMI complicated with complete AV block that irresponsive to atropine. Material and Methods: 13 patients with AIMI in whom complete AV block that irresponsive to atropine determined in electrocardiography (ECG) were included in study. Temporary pacemaker was implanted to all patients and trombolytic treatment was administered to suitable patients. Intravenous aminophylline (240 mg) for five minutes infused to all patients. Before and 10 and 30 minutes after the infusion ECG recordings were taken, atrial and ventricular rates and blood pressures were measured. Results: In ECG of patients there were no significant difference in atrial and ventricular rates before and 10 and 30 minutes after aminophylline infusion. (Atrial rates in order; 105.4±24.5/min, 102.3±22.1/min and 106.7±24.4/min; p=0.778. Ventricular rates in order; 54.8±14.2/min, 55.2±19.7/min and 55.7±20.1/min; p=0.871) There were also no significant difference systolic and diastolic blood pressures before and 10 and 30 minutes after aminophylline infusion. (Systolic blood pressures in order; 92.8±17.9 mmHg, 91.4±18.6 mmHg and 91.8±18.2; p=0.604. Diastolic blood pressures in order; 66.6±5.1 mmHg, 68.3±9.8 mmHg and 68.4±9.9 mmHg; p=0.611) Conclusion: In contrast to previous studies we determined that aminophylline has no effect on heart rate and blood pressure in patients with AIMI complicated wtih complete AV block. We think that studies including more patients are necessary to explain this subject.

Özet

Amaç: Akut inferior miyokart infarktüslü olgulardaki atriyoventriküler (AV) tam bloğun oluşumunda atrioventriküler bileşkedeki iskemik değişikliklerin yanında iskemik ve nekrotik dokulardaki artmış adenozin üretimi ve artmış vagal tonusun önemli rolü olduğuna dair bulgular mevcuttur. Çalışmamızda, atropine yanıtsız AV tam blokla komplike olan akut inferior miyokart infarktüslü hastalarda adenozinin kompetetif bir antagonisti olan intravenöz aminofilinin erken dönem etkilerini göstermeyi amaçladık. Gereç ve Yöntem: Çalışmaya akut inferior miyokart infarktüsüyle başvuran ve elektrokardiyografide (EKG) atropine cevapsız AV tam blok saptanan 13 hasta (8'i erkek, 5'i kadın) alındı. Hastaların hepsine geçici pacemaker implantasyonu yapılarak uygun hastalara trombolitik tedavi başlandı. Bu sırada tüm hastalara intravenöz olarak 5 dakika süreyle aminofilin infüzyonu (240 mg) yapıldı. İnfüzyon öncesinde ve 10. ve 30 dk sonrasında EKG kayıtları alınarak atrium, ventrikül hızları kaydedildi, kan basıncı ölçümleri yapıldı. Bulgular: Çalışmaya alınan hastaların EKG'sindeki atrium ve ventrikül hızları açısından aminofilin öncesi, aminofilin sonrası 10. dakika ve aminofilin sonrası 30. dakikada anlamlı fark yoktu. (Atrial hız sırasıyla; 105.4±24.5/dk, 102.3±22.1/dk ve 106.7±24.4/dk; p=0.778. Ventrikül hızı sırasıyla; 54.8±14.2/dk, 55.2±19.7/dk ve 55.7±20.1/dk; p=0.871) Yine hastaların sistolik ve diastolik kan basınçları dikkate alındığında aminofilin öncesi, aminofilin sonrası 10. dakika ve aminofilin sonrası 30. dakikada anlamlı fark saptanmadı. (Sistolik kan basıncı sırasıyla; 92.8±17.9 mmHg, 91.4±18.6 mmHg ve 91.8±18.2; p=0.604. Diastolik kan basıncı sırasıyla; 66.6±5.1 mmHg, 68.3±9.8 mmHg ve 68.4±9.9 mmHg; p=0.611). Tartışma: Çalışmamızda mevcut diğer çalışmaların aksine AV tam blokla seyreden akut miyokart infarktüslü hastalarda aminofilinin kalp hızı ve kan basıncı üzerine olumlu bir etkisinin olmadığını saptadık. Bu konunun aydınlatılması için daha fazla sayıda hastayı içeren çalışmalara ihtiyaç olduğu düşüncesindeyiz.

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Cite This Article

YAZICI, M., DEMİRCAN, S., AKSAKAL, E., MERİÇ, M., İBRAHİMOV, F., ŞAHİN, M. (2003). The effect of intravenous aminophylline in acute inferior myocardial infarction complicated with complete atrioventricular block. MN Kardiyoloji, Cilt: 10 - Sayı: 5, 371–374. https://ajindex.com/articles/297754

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