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15.12.2016 | Original Research | Ausgabe 1/2017 Open Access

Cardiology and Therapy 1/2017

Cardiovascular Abnormalities and in-Hospital All-Cause Mortality in Patients with Spontaneous Sub-Arachnoid Hemorrhage: An Observational Study

Zeitschrift:
Cardiology and Therapy > Ausgabe 1/2017
Autoren:
Ahmed N. Mahmoud, Akram Y. Elgendy, Hend Mansoor, Islam Y. Elgendy
Wichtige Hinweise

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Abstract

Introduction

Patients with spontaneous sub-arachnoid hemorrhage (SAH) might develop various cardiac abnormalities, however; the prognostic implications of these cardiac abnormalities are not well known. This study aimed to detect the cardiac abnormality that correlates best with in-hospital all-cause mortality in patients with SAH.

Methods

In this retrospective study, all patients admitted to our institution with a primary diagnosis of SAH, and underwent a transthoracic echocardiogram (TTE) from July 2011 until May 2014, were enrolled. Data gathered included patients’ demographics, Hunt and Hess clinical grading, computed tomography SAH Fisher grading, troponin T level, electrocardiographic (ECG) changes, TTE, and in-hospital all-cause mortality. Multivariate logistic regression of the cardiac abnormalities and in-hospital all-cause mortality was performed.

Results

A total of 247 patients were included in our analysis. In-hospital all-cause mortality was 15.6% (38 patients). The presence of elevated troponin T levels, resting segmental wall motion abnormalities, reduced ejection fraction (<35%), and prolonged corrected QT interval (QTc) on ECG were associated with increased in-hospital all-cause mortality on univariate analysis. On multivariable regression, QTc prolongation was the only independent predictor for in-hospital all-cause mortality (p = 0.04).

Conclusions

Prolonged QTc interval on ECG was independently associated with in-hospital all-cause mortality in patients presenting with spontaneous SAH. Whether this is a causative association or a marker of underlying severe clinical presentation of SAH remains unknown.
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