Intraventricular conduction blocks in Nigerians with hypertensive heart disease

Year 2013, Volume: 3 Issue: 2, 69 - 74, 30.01.2014

Olusegun Adesola Busari Abidemi Jude Fasae Timothy Olusegun Olarewaju Lawrence Majekodunmi Ayodele Yusuf Olatunji Oladosu

Abstract

Background: Hypertension is highly prevalent in Nigeria and globally. Intraventricular conduction blocks contribute to morbidity and mortality in hypertension. The objective of the study was to determine the prevalence and pattern of intraventricular conduction blocks in adult Nigerians with hypertensive heart disease.

Materials and methods: This was a retrospective study of the resting 12-lead electrocardiograms of adult patients with hypertensive heart disease attending the Cardiology Unit of the Federal Medical Centre (FMC), Ido-Ekiti, Nigeria. The data collected was doubly entry into SPSS 20.0 software. 

Results: Resting electrocardiograms of 543 adult Nigerians with hypertensive heart disease were studied. There were 336 (61.9%) males and 207 (38.1%) females. Mean age and standard deviation of the patients was 61.3±9.7 years. About a quarter (24.7%) of the patients had intraventricular conduction blocks. Left anterior fascicular block was the most common (52.2%) occurring singly or in combinations with other blocks. Intraventricular conduction blocks were more prevalent in patients with hypertensive heart failure (31.0% versus 23.9%, p = 0.24)though not statistically significant. 

Conclusion: This study shows that there is a high prevalence of intraventricular conduction blocks in adult Nigerians with hypertensive heart disease. The subset with heart failure has a higher prevalence than those without heart failure. Left anterior fascicular block is the most common type.

Key words: Hypertension, heart failure, intraventricular conduction blocks, adult Nigerians

Keywords

Hypertension, heart failure, intraventricular conduction blocks, adult Nigerians

Hipertansif kalp hastalığı olan Nijeryalılar’da intraventriküler iletim blokları

Abstract

Amaç: Hipertansiyon tüm dünyada olduğu gibi Nijerya’da da yüksek prevalansa sahiptir. İntraventriküler iletim bloklarının hipertansiyonda morbidite ve mortaliteye katkıda bulunduğu bilinmektedir. Bu çalışmanın amacı, hipertansif kalp hastalığı olan erişkin Nijeryalılar’da intraventriküler iletim blok prevalansı ve kalıbının belirlenmesidir.

Gereç ve Yöntem: Bu retrospektif çalışma, Ido-Ekiti, Nijerya’daki Federal Tıp Merkezi’nin Kardiyoloji Birimi’ne başvurmuş olan, hipertansif kalp hastalığına sahip erişkin hastaların istirahat halindeki 12-derivasyonlu elektrokardiyogramlarının değerlendirilmesini kapsamaktaydı. Toplanan veriler SPSS 20.0 yazılımı ile analiz edilmiştir.

Bulgular: Hipertansif kalp hastalığı olan 543 erişkin Nijeryalı’nın istirahat halindeki elektrokardiyogramları çalışıldı. 336’sı (%61.9) erkek ve 207’si (%38.1) kadın olan hastaların ortalama ± standart sapma yaşları 61.3±9.7 yıl idi. Hastaların yaklaşık dörtte birinde (%24.7) intraventriküler iletim blokları vardı. Sol ön fasiküler blok tek başına ya da diğer bloklar ile kombinasyon halinde en sık gözlenen (%52.2) blok türüydü. İntraventriküler ileti blokları hipertansif kalp yetmezliği olan hastalarda istatistiksel olarak anlamlı olmasa da daha sık görülmekteydi (%23.9’a karşı %31.0, p=0.24).

Sonuç: Bu çalışma hipertansif kalp hastalığı olan erişkin Nijeryalılar’da intraventriküler iletim blok prevalansının yüksek olduğunu göstermektedir. Kalp yetmezliği olan alt-grup, kalp yetmezliği olmayanlara göre daha yüksek bir prevalansa sahipti. En sık görülen blok tip sol ön fasiküler bloktu.

Anahtar Kelimeler : Hipertansiyon, kalp yetmezliği, intraventriküler ileti blokları, yetişkin Nijeryalılar

Keywords

Hipertansiyon, kalp yetmezliği, intraventriküler ileti blokları, yetişkin Nijeryalılar

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