Journals / Türk Kardiyoloji Derneği Arşivi / 2021 / Cilt: 49 - Sayı: 2

Evaluation of Tp-e interval and Tp-e:QT and Tp-e:QTc ratios in patients infected with HIV and using antiretroviral therapy

Antiretroviral kullanan HIV enfekte hastalarda Tp-e aralığının, Tp-e: QT ve Tp-e: QTc oranlarının değerlendirmesi

Pages
135–142
Publication Date
2022-11-06
DOI
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AI Summary & Key Takeaways

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

Thus, more attention should be taken in terms of SCD in patients infected with HIV, especially in those with low nadir CD4 and reversed CD4:CD8 ratio.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: Sudden cardiac death (SCD) is one of the causes of death among patients infected with human immunodeficiency virus (HIV).
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Key Findings & Data:Methods: A total of 83 patients infected with HIV with negative HIV ribonucleic acid (RNA) levels who were receiving antiretroviral therapy (ART) and 83 healthy individuals were included in this study.
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Conclusion & Impact:Thus, more attention should be taken in terms of SCD in patients infected with HIV, especially in those with low nadir CD4 and reversed CD4:CD8 ratio.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: Sudden cardiac death (SCD) is one of the causes of death among patients infected with human immunodeficiency virus (HIV). The T peak to T end interval (Tp-e interval) is a parameter that is used in the prediction of SCD. The aim of this study was to investigate the difference in Tp-e interval and Tp:QT and Tp:corrected QT interval (QTc) ratios between patients infected with HIV and healthy individuals as well as in other factors affecting patients infected with HIV. Methods: A total of 83 patients infected with HIV with negative HIV ribonucleic acid (RNA) levels who were receiving antiretroviral therapy (ART) and 83 healthy individuals were included in this study. All the participants underwent electrocardiography, their Tp-e and QT intervals were measured, and QTc intervals and Tp-e:QT and Tp-e:QTc ratios were calculated. In addition, in the patients infected with HIV, CD4 and CD8 T-cell count and HIV RNA levels were measured. Results: The Tp-e interval was found to be longer and the Tp-e:QT and Tp-e:QTc ratios were found to be higher in patients infected with HIV. Nadir CD4 was observed to be an independent predictor of Tp-e interval (p=0.014, β=‒0.28). Furthermore, correlation analysis revealed a negative correlation of the nadir CD4 level and CD4:CD8 ratio with Tp-e interval and Tp-e:QT ratio. Conclusion: Low nadir CD4 and a reversed CD4:CD8 ratio in patients infected with HIV receiving ART were found to be associated with a prolonged Tp-e interval and increased Tp-e:QT and Tp-e:QTc ratios. Thus, more attention should be taken in terms of SCD in patients infected with HIV, especially in those with low nadir CD4 and reversed CD4:CD8 ratio.

Özet

Amaç: Ani kardiyak ölüm (AKÖ), insan bağışıklık yetmezliği virüsü (HIV) ile enfekte hastalarda ölüm nedenlerindendir. Tp-e intervali ve Tp-e: QT oranı AKÖ öngörmede kullanılan parametrelerdendir. Bu çalışmanın amacı HIV ile enfekte hastalarda sağlıklı bireylere göre Tp-e aralığı, Tp-e: QT ve Tp-e: QTc oranlarının arasında farklılığın varlığını ve farklılık varsa etki eden faktörleri araştırmaktır. Yöntemler: Araştırmaya antiretroviral (ART) ilaç kullanıp HIV-ribonükleik asit (RNA) seviyesi negatif olan 83 HIV enfekte hasta ile 83 sağlıklı birey çalışmaya alındı. Tüm katılımcılara elektrokardiyografi (EKG) çekilip, Tp-e ve QT intervali ölçüldü ve QTc intervali, Tp-e: QT ve Tp-e: QTc oranları hesaplandı. Ayrıca HIV enfekte hastalarda CD4 ve CD8 T hücre sayısı ve HIV RNA düzeyi bakıldı. Bulgular: HIV enfekte hastalarda daha uzun Tp-e interval ve daha yüksek Tp-e: QT ve Tp-e: QTc oranları saptandı. Nadir CD4, Tp-e göstermede bağımsız prediktör olarak izlendi (p: 0.014 β: -0.28).Ayrıca nadir CD4 ve CD4/CD8 oranı ile Tp-e intervali ve Tp-e: QT oranı arasında negatif korelasyon izlendi. Sonuç: ART kullanan HIV ile enfekte hastalarda düşük nadir CD4 ve ters dönmüş CD4/C8 oranı, Tp-e intervalinde uzama ve Tp-e: QT oranında artış ile ilişkili bulundu. HIV enfekte hastalarda özellikle de düşük nadir CD4 ve CD4/ CD8 oranı olanlarda AKÖ açısından dikkatli olunmalıdır.

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Cite This Article

Çetin, Ş., Altuntaş, E., Bayraktar, A., Çetin, A. Ş. (2022). Evaluation of Tp-e interval and Tp-e:QT and Tp-e:QTc ratios in patients infected with HIV and using antiretroviral therapy. Türk Kardiyoloji Derneği Arşivi, Cilt: 49 - Sayı: 2, 135–142. https://ajindex.com/articles/631875

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