The Association of Serum Lactate Dehydrogenase Levels with In- Hospital Mortality due to Pulmonary Embolism

Samad Ghaffari; Reza Hajizadeh; Tooba Mohammadi; Hadiseh Kavandi; Kamran Mohammadi; Mehdi Mohebbalizadeh; Sahar Ghodratizadeh; Amin Sedokani

International Cardiovascular Research Journal

The Official Annually Journal of Cardiovascular Research Center, Shiraz University of Medical Sciences

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The Association of Serum Lactate Dehydrogenase Levels with In- Hospital Mortality due to Pulmonary Embolism

Author(s):

Samad Ghaffari

¹,

Reza Hajizadeh

²,

Tooba Mohammadi

³,

Hadiseh Kavandi

¹,

Kamran Mohammadi

¹,

Mehdi Mohebbalizadeh

³,

Sahar Ghodratizadeh

⁴,

Amin Sedokani

^{2, 3,*}

1Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, IR Iran

2Department of Cardiology, Urmia University of Medical Sciences, Urmia, IR Iran

3Student Research Committee, Urmia University of Medical Sciences, Urmia, IR Iran

4Department of Anesthesiology, Urmia University of Medical Sciences, Urmia, IR Iran

International Cardiovascular Research Journal:Vol. 16, issue 3; e121597

Published online:Sep 30, 2022

Article type:Research Article

Received:Nov 30, 2021

Accepted:Sep 10, 2022

How to Cite:Samad GhaffariReza HajizadehTooba MohammadiHadiseh KavandiKamran MohammadiMehdi MohebbalizadehSahar GhodratizadehAmin Sedokaniet al.The Association of Serum Lactate Dehydrogenase Levels with In- Hospital Mortality due to Pulmonary Embolism.Int Cardiovasc Res J.16(3):e121597.

Abstract

Background: A significant correlation exists between elevated lactate dehydrogenase (LDH) levels and thrombotic events, yet the prognostic value of this biomarker in patients with pulmonary embolism (PE) remains elusive. Finding new biomarkers can help us achieve better risk stratification and treatment strategies to reduce the mortality of PE patients.

Objectives: We aimed to determine the possible association between serum LDH and the in-hospital mortality of PE patients.

Methods: In this cross-sectional study, 217 patients with PE (diagnosed by computed tomography angiography) and a serum LDH level documented within the first 24 hours of admission were included. Our exclusion criteria were hepatic and renal diseases, pregnancy, hemolytic disorders, left ventricular infarction, recent stroke, positive history of active cancer, acute and chronic infections, and reticuloendothelial-related diseases.

Results: The mean age of patients was 63.04 ± 16.81 years; 23 patients (10.6%) died during hospitalization. Multivariate analysis showed that LDH and white blood cells (WBC) were independent predictors of in-hospital mortality; however, this association was insignificant. Univariate analysis showed that higher levels of LDH, WBC, and red cell distribution width (RDW) had a significant association with in-hospital mortality (P < 0.05). The receiver operating characteristics curve showed that an LDH cut-off value of 515 U/l had a sensitivity of 91.3% and specificity of 45.9% in predicting in-hospital mortality (95% CI = 0.636 – 0.761, P = 0.0003).

Conclusion: LDH can be an excellent prognostic marker for predicting in-hospital death in patients with pulmonary embolism.

Keywords

Pulmonary Embolism

L-Lactate Dehydrogenase

Mortality

Hospital Mortality

Computed Tomography Angiography

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