Journals / Anadolu Kardiyoloji Dergisi / 2011 / Cilt: 11 - Sayı: 3

Ölçülü doz inhalerle verilen salbutamolün ventrikül repolarizasyonunun dispersiyonu üzerine etkisi

Effects of salbutamol given by metered-dose inhaler on dispersion of ventricular repolarization

Pages
232–236
Publication Date
2022-10-10
DOI
—
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AI Summary & Key Takeaways

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

Results: Overall, treatments were well-tolerated, significant improvement of pulmonary index scores and spirometric parameters were observed after treatment.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: Salbutamol has previously been shown to increase the QT dispersion (QTd), which may be associated with high risk of cardiac arrhythmia in asthmatics.
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Key Findings & Data:This prospective cohort study aimed to assess the effect of salbutamol given by MDI on QTd in the course of moderate acute asthma attack.Methods: Thirty-two children, between 5-15 years of age, who were able to perform spirometric maneuvers and salbutamol administration by MDI through the spacer, were enrolled.
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Conclusion & Impact:Results: Overall, treatments were well-tolerated, significant improvement of pulmonary index scores and spirometric parameters were observed after treatment.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: Salbutamol has previously been shown to increase the QT dispersion (QTd), which may be associated with high risk of cardiac arrhythmia in asthmatics. Cardiac effects of salbutamol occur in dose-related manner and salbutamol dose given by metered-dose inhaler (MDI) during acute asthma attack is commonly lower than the dose given by nebulizer. This prospective cohort study aimed to assess the effect of salbutamol given by MDI on QTd in the course of moderate acute asthma attack.Methods: Thirty-two children, between 5-15 years of age, who were able to perform spirometric maneuvers and salbutamol administration by MDI through the spacer, were enrolled. Salbutamol was administered at a dose of 50 µg/kg three times at 15-20 minute intervals. Clinical features, spirometric parameters and QT measurements from the standard electrocardiograms were studied at baseline and 15 minute after the third inhalation of salbutamol. The relation between the continuous variables was evaluated by using paired Student’s t-test. Results: Overall, treatments were well-tolerated, significant improvement of pulmonary index scores and spirometric parameters were observed after treatment. No significant difference was observed between the pre and post-treatment values in QTd (30.4±5.6 ms; 33.7±6.2 ms, p=0.086) and corrected QTd (38.8±6.4 ms; 40.7±7.7 ms, p=0.18). Conclusion: Salbutamol administered using metered dose inhaler showed satisfying clinical improvement with notably lower doses than the dose given by nebulizer and does not affect ventricular repolarization in children with moderate acute asthmatic attack.

Özet

Amaç: Daha önceki çalışmalarda salbutamolün astımlı hastalarda QT dispersiyonunu (QTd) arttırdığı ve bununda kardiyak aritmi ile ilişkisi gösterilmiştir. Salbutamolün kardiyak etkileri verilen dozla ilişkilidir ve akut astım atağı sırasında ölçülü doz inhalerle (ÖDİ) verilen doz miktarı nebulizatörle verilen dozların genellikle altındadır. Bu prospektif kohort çalışmada orta şiddette akut astım atağı sırasında ÖDİ ile verilen salbutamolün QTd üzerine etkisi değerlendirilmiştir. Yöntemler: Spirometrik manevraları yapabilecek ve ÖDİ ile salbutamol alabilecek 5-15 yaş arası 32 hasta çalışmaya dahil edildi. Salbutamol doz başına 50 µg/kg olacak şekilde 15-20 dakika arayla üç dozda verildi. Hastaların klinik durumu, spirometrik parametreler ve standart elektrokardiyogramdan QT ölçümleri, salbutamol verilmeden önce ve üçüncü dozdan 15 dakika sonra değerlendirildi. Sürekli değişkenlere bağlı olarak, tedavi öncesi ve sonrası ilişki eşleştirilmiş Student’s t-testi ile değerlendirildi. Bulgular: Tedavi tüm hastalarda iyi tolere edildi, tedavi sonrası pulmoner indeks puanlarında ve spirometrik parametrelerde anlamlı düzelme izlendi. Tedavi öncesi ve sonrası QTd (30.4±5.6 msn; 33.7±6.2 msn, p=0.086) ve düzeltilmiş QTd (38.8±6.4 msn; 40.7±7.7 msn, p=0.18) değerlerinde farklılık saptanmadı.Sonuç: Çocuklarda orta şiddette akut astım atağında ölçülü doz inhalerle verilen salbutamol ile nebulizatörle verilen miktara göre, oldukça düşük dozlarda tatmin edici klinik düzelme sağlanmaktadır ve ventrikül repolarizasyonu etkilenmemektedir.

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Cite This Article

POLAT, T. B., ULAŞ, E. S., NURSOY, M. A. (2022). Ölçülü doz inhalerle verilen salbutamolün ventrikül repolarizasyonunun dispersiyonu üzerine etkisi. Anadolu Kardiyoloji Dergisi, Cilt: 11 - Sayı: 3, 232–236. https://ajindex.com/articles/436564

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