Journals / MN Kardiyoloji / 2001 / Cilt: 8 - Sayı: 5

Comparison of different t-PA protocols effect on QT dispersion and frequency of arrhythmia

Farklı t-PA protokollerinin QT dispersiyonu ve aritmi sıklığı üzerine etkisi

Pages
357–362
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)

QTc and JTc prameters were higher in Group II than in Group I after thrombolytic therapy (P<0.05) There was no difference in frequency of arrhythmia, other QT interval parameters and halter findings.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Thrombolytic therapy is regarded as standart therapy in patients with acute myocardial infarction in recent years.
📊
Key Findings & Data:Several major clinical trials showed thrombolytic theraphy to be associated with significant reduction in mortality.
💡
Conclusion & Impact:QTc and JTc prameters were higher in Group II than in Group I after thrombolytic therapy (P<0.05) There was no difference in frequency of arrhythmia, other QT interval parameters and halter findings.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Aritmi · Miyokard enfarktüsü · Elektrokardiyografi

Abstract

Thrombolytic therapy is regarded as standart therapy in patients with acute myocardial infarction in recent years. Several major clinical trials showed thrombolytic theraphy to be associated with significant reduction in mortality. QT dispersion has been shown to reflect regional variations in ventricular repolarization and increased in patients with life-threatening ventricular arrhythmias. The aim of this study was to investigate the effect of t-PA 60 minutes dosing regimen compared with the front loaded 90 minute infusion regimen inpatients with acute myocardial infarction on QT dispersion and arrhythmia frequency. in this randomised study, 25 of the 51 patients (Grup I) with acute myocardial infarction received 100 mg t-PA as 60 minutes accelareted dosing regimen, 26 patient (Group II) received 100 mg t-PA as 90 minutes accelerated dosing regimen. All patients undenvent coronary angiography at 90 minutes after thrombolytic therapy, electrocardiography fare and after thrombolytic therapy, 24 hours ambulatory electrocardiography after one week thrombolytic therapy. QTc and JTc prameters were higher in Group II than in Group I after thrombolytic therapy (P<0.05) There was no difference in frequency of arrhythmia, other QT interval parameters and halter findings.

Özet

Trombolitik tedavi son yıllarda akut miyokard infarktüslü hastalarda standart bir tedavi olarak görülmektedir. Birçok büyük ölçekli çalışmada trombolitik tedavi sonucunda mortalitede belirgin azalma saptanmıştır. QT dispersiyonu; ventrikül repolarizasyonundaki bölgesel farklılıkları yansıtan ve ventriküler aritmilere sahip hastalarda arttığı gösterilen bir ölçüttür. Bu çalışmamızın amacı akut miyokard infarktüslü hastalarda 60 dakikalık 100 mg'lık t-PA rejimiyle aynı dozda 90 dakikalık t-PA rejiminin QT dispersionu ve aritmi sıklığı üzerine etkisini araştırmaktı. Çalışmamızda 25 hastadan oluşan Grup 1'e 60 dakikalık t-PA protokolü, 26 hastada oluşan Grup II 'ye ise 90 dakikalık t-PA protokolü uygulandı. Bütün hastalara trombolitik tedavi sonrası 90. dakikada koroner anjiyografi, trombolitik tedavi öncesi ve sonrası elektrokardiyografi ve 1. haftada 24 saatlik ambulatuar elektrokardiyografi tetkiki uygulandı. QTc ve JTc parametreleri trombolitik tedavi sonrasında Grup II'de Grup 1'e göre anlamlı derecede daha fazla iken (P<0.05), diğer QT parametreleri ve 24 saatlik ambulatuar elektrokardiyografi bulgularında bir farklılık tespit edilemedi

🔖

Cite This Article

GÖKÇE, M., ÖREM, C., BAYKAN, M., DURMUŞ, İ., ÇELİK, Ş., ERDÖL, C. (2001). Comparison of different t-PA protocols effect on QT dispersion and frequency of arrhythmia. MN Kardiyoloji, Cilt: 8 - Sayı: 5, 357–362. https://ajindex.com/articles/298071

References (7)

  1. Dangas G, Her C, Ambrose A. Thrombolytic therapy in acute myocardial infarction. Drugs of Today 1998; 34:727-736.
  2. Ciolli A, Di Lorenco M, Bevilacqua U, Lo Sardo G, Tripi M, Fidati R, Palamara A. QT dispersion and early arrhythmic risk during acute myocardial infarction. G Ital Cardiol 1999; 29:1438-44.
  3. Han J, Goel BG. Electrophysiologic precursors of ventricular tachyarrhythmias. Arch Intern Med 1972; 129:749. Kuo CS, Munakata K,Reddy p; Surawicz B. Characteristics and possible mechanism of ventricular arrhytmias dependent on the dispersion of action potential duration. Circulation 1983; 67:1356. Higham PD,Campbell RWF. QT dispersion. Br Heart J 1994;71:508. Higham PD, Furniss SS, Campbell RWF. QT dispersion and components of the QT interval in ischemia and infarction. Br Heart J 1995; 73:32. Fei L, Statters DJ, Camm AJ. QT interval dispersion on 12-lead electrocardiogram in normal subjects: its reproducibility and relation to the T wave. Am Heart J 1994; 127:1654. Perkiomaki J, Koistinen MJ, Yli-Mayry S, Huikuri H. Dispersion of QT interval in patients with and without susceptibility to ventricular tachyarrhytmias after previous myocardial infarction. J Am Coll Cardiol 1995; 26:174. Moreno FL, Villanueva T, Karagounis LA, Anderson JL. Reduction in QT interval dispersion by successful thrombolytic therapy in acute myocardial infarction. TEAM-2 Study Investigators. Circulation 1994; 90:94-100.
  4. Endoh Y, Kasanuki H, Ohnishi S, Shibata N, Hosoda S. Influence of early coronary reperfusion on QT interval dispersion after acute myocardial infarction. Pacing Clin Electrophysiol 1997; 20:1646-53.
  5. Karagounis LA, Anderson JL, Moreno FL, Sorensen SG. Multivariate associates of QT dispersion in patients with acute myocardial infarction: primacy of patency status of the infarct-related artery. TEAM-3 Investigators. Third trial of Thrombolysis with Eminase in Acute Myocardial Infarction. Am Heart J 1998; 135(6 PT 1):1027-35.
  6. Gulba DC, Tanswell P, Dechend R, Sosada M, Weis A, Waigand J, Uhlich F, Hauck S, Jost S, Rafflenbeul W, Lichtlen RP, Dietz R. Sixty -minute Alteplase Protocol: A New Accelerated Recombinanat Tissue -Type Plasminogen Activator Regimen for Thrombolysis in Acute.Myocardial Infarction J Am Coll Card 1997; 30:1611-7. The GUSTO Investigators. An international randomized trial comparing four thrombolytic strategies for acute myocardial infarction. N Eng J Med 1993; 329:673-82.
  7. Gressin V, Gorgels A, Louvard Y. ST -segment normalization time and ventricula