Nigerian Journal of Cardiology

ORIGINAL ARTICLE
Year
: 2020  |  Volume : 17  |  Issue : 1  |  Page : 37--41

Electromechanical dyssynchrony and short-term outcomes of readmission and death, among heart failure patients in Aminu Kano teaching hospital, Kano State, Nigeria


Bashir Garba Ahmad1, Muhammad Sani Mijinyawa2, Mahmoud Umar Sani2 
1 Department of Medicine, Aminu Kano Teaching Hospital, Kano State, Nigeria
2 Department of Medicine, Aminu Kano Teaching Hospital; Department of Medicine, Bayero University, Kano State, Nigeria

Correspondence Address:
Dr. Bashir Garba Ahmad
Department of Medicine, Aminu Kano Teaching Hospital, Kano State
Nigeria

Background: Cardiac dyssynchrony refers to a difference in the timing of contractions in different chambers and/or segments of the heart. Left ventricular (LV) dyssynchrony is frequently seen in patients with heart failure (HF) and is a poor prognostic marker if left untreated. The impact of cardiac dyssynchrony among HF patients in Nigeria is unknown. We set out to assess the role of electromechanical dyssynchrony in short-term outcomes in terms of readmission and 6-month mortality among HF patients in our hospital. Methods: We conducted a prospective observational study among adult HF patients in our hospital. Electrical and mechanical dyssynchrony were measured using electrocardiography and echocardiography, respectively. Data on the outcome of readmission and death within 6 months were collected. Data were analyzed using the Statistical Package for the Social Sciences (SPSS) version 16 software. Results: A total of 100 participants were recruited for this study. Electrical dyssynchrony (Duration of QRS complex on ECG > 120ms) was found in 11%, 8 (73%) of them had QRS width between 120 and 150 ms, while in three, the QRS width was >150 ms. The prevalence of interventricular dyssynchrony (LV preejection interval – right ventricular preejection interval ≥40 ms) was found to be 79%, while that of intraventricular (septal to posterior wall motion delay >130 ms) was 75%. Nineteen percent of the study participants were readmitted with worsening HF symptoms, while up to 37% died within the 6 months follow-up period. Electrical dyssynchrony was a significant predictor of short-term readmission and death. There was also a statistically significant difference (P < 0.005) between all forms of dyssynchrony and death. Conclusion: The presence of electromechanical dyssynchrony is associated with a poor short-term outcome of readmission and death. More studies are needed in our country to fully define the burden of dyssynchrony among HF patients in our environment.


How to cite this article:
Ahmad BG, Mijinyawa MS, Sani MU. Electromechanical dyssynchrony and short-term outcomes of readmission and death, among heart failure patients in Aminu Kano teaching hospital, Kano State, Nigeria.Nig J Cardiol 2020;17:37-41


How to cite this URL:
Ahmad BG, Mijinyawa MS, Sani MU. Electromechanical dyssynchrony and short-term outcomes of readmission and death, among heart failure patients in Aminu Kano teaching hospital, Kano State, Nigeria. Nig J Cardiol [serial online] 2020 [cited 2020 Nov 28 ];17:37-41
Available from: https://www.nigjcardiol.org/article.asp?issn=0189-7969;year=2020;volume=17;issue=1;spage=37;epage=41;aulast=Ahmad;type=0