Prognostic value of QRS duration to predict mortality in patients with acute heart failure

Introduction: Acute heart failure is a major problem in clinical pathology, often with very severe prognosis. We tried to find common parameters useful to estimate prognosis in this pathology.
Objective: We studied if there is any correlation betwe-en QRS duration and mortality in patients with acute heart failure.
Methods: We examinated 186 consecutive patients with heart failure, hospitalized in our clinic betwe-en 01.07.2016- 31.12.2016, which were divided into 3 groups (depending on the duration of QRS): – group I with QRS<0,11 seconds, – group II with QRS=0.11-0.15 seconds – group III with QRS>0,15 seconds. All 3 groups had similar characteristics in terms of gen-der, age, risk factors etc. Patients were followed up for 1 year. Etiology of heart failure was in most cases is-chemic cardiomyopathy – CMD (56,45%) and hyper-tensive cardiomyopathy – HTA (36,55%). Were used to compare Student t test and chi square and P values <0.05 were considered significant.
Results: We obtained a continuous relationship betwe-en QRS duration and mortality at 1 year: in group I (QRS <0.11 s) mortality was 6.45%, in group II (QRS=0.11-0.15 s) death rate was 11.42% and in group (QRS >0.15 s) mortality was 18.53% (statistically significant increase compared to group I and group II). Also, correlations were obtained between QRS duration and NYHA class and left ventricular ejection fraction. Conclusions: T hus, a parameter easily determinable (QRS duration) can be used in the initial evaluation of severity of heart failure and to select the best manage-ment for this.

ISSN – online: 2734 – 6382
ISSN-L 1220-658X
ISSN – print: 1220-658X
The Romanian Journal of Cardiology is indexed by:
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CODE: 379
CME Credits: 10 (Romanian College of Physicians)