To investigate the relation between LDH and CRP levels and mortality of COVID-19 (SARS-CoV-2) patients admitted in SURGERY ICU at Shariati Hospital from 19 February 2020 till 19 February 2021

Nima Mohammadi Afrakoti; Mohammadsadegh  Talebi Kahdouei; Alireza  Khajeh Nasiri; Arash Heroabadi; Samaneh Haji Mollarabei; Fatemeh Aghaei

doi:10.18502/ajs.v7i2.16364

Nima Mohammadi Afrakoti Anesthesiology Department, Tehran University of Medical Sciences, Tehran, Iran
Mohammadsadegh Talebi Kahdouei Medical school, Tehran University of Medical sciences, Tehran, Iran
Alireza Khajeh Nasiri Anesthesiology Department, Tehran University of Medical Sciences, Tehran, Iran
Arash Heroabadi Anesthesiology Department, Tehran University of Medical Sciences, Tehran, Iran
Samaneh Haji Mollarabei Neurology Department, Alborz University of Medical Sciences, Alborz, Iran
Fatemeh Aghaei Medical school, Tehran University of Medical sciences, Tehran, Iran

DOI: https://doi.org/10.18502/ajs.v7i2.16364

Keywords: SARS-CoV-2, Lab Results, LDH, CRP, Lung Lesions

Abstract

Background: The aim of this study is to investigate the relationship between LDH and CRP levels and the mortality of COVID-19 (SARS-CoV-2) patients admitted to the SURGERY ICU at Shariati Hospital from 19 February 2020 to 19 February 2021.

Methods: Our study is a cross-sectional descriptive study. A total of 81 patients were enrolled in this study. We examined lab reports, including CBC parameters (WBC, neutrophil count, neutrophil percentage), other inflammatory markers ESR and CRP, and also studied the medical records of cases to collect details about age, gender, length of stay in SURGERY ICU, BMI, fever, survival status, comorbidity, intubation, and NIV. These patients were referred to Shariati Hospital, Tehran, from 19 February 2020 to 19 February 2021, regarding the relationship between LDH and CRP levels and the mortality of COVID-19 (SARS-CoV-2) patients admitted to the SURGERY ICU. The data obtained was analyzed using SPSS software, and a significance value of < 0.05 was considered.

Results: In this study, the data of 81 patients were considered. The data were obtained from the medical records of Shariati Hospital, Tehran. We used 11 variables to compare data from different patients that were recorded in the registry and system of medical records in Shariati Hospital, Tehran. The study population included 81 patients, of which 41 were female and 40 were male, ranging in age from 25 to 89. In total, 80.2% had mild disease versus 18.5% who had severe disease. Sixty-five patients survived, and 16 were admitted to the SURGERY ICU with endotracheal intubation and later died. The length of stay in the SURGERY ICU ranged from 1 to 25 days. Out of 81 patients, 52 (62.4%) had comorbidity, and 29 (35.8%) did not have comorbidity. Twelve patients (14.8%) received NIV, and 69 patients (85.2%) did not receive NIV. Most of the patients did not have a fever. The minimum and maximum levels of CRP were 4 and 416, respectively, and for LDH were 9 and 2401, respectively. The prognostic factors for the severity of COVID-19 infection identified in this study (CRP and LDH) help predict the course of the disease at an early stage. Elevated concentrations of CRP and LDH at admission were found to be associated with a higher risk for COVID-19 severity as they were significant (p-value =0.049 and 0.048, respectively).

Conclusions: This study’s laboratory investigation showed that the SURGERY ICU patients had significantly higher values of inflammatory markers CRP and LDH than the non-SURGERY ICU patients. LDH and CRP were superior and effective biomarkers in predicting the severity of COVID-19.