Severity factors in Algerian patients hospitalized for COVID-19
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Abstract
Introduction. Determining the profile of COVID-19 patients with low pulsed hemoglobin saturation in oxygen (SpO2) could help clinicians identify those with a poor prognosis. Aim. To identify and to compare the clinical, biological and radiological data of Algerian patients hospitalized for COVID-19 and divided according to the SpO2 measured at admission, at rest, and in ambient air.
Methods. A prospective study was carried out on Algerian patients hospitalized for COVID-19 during the period from March 9 to April 30, 2020. The general characteristics of the patients and the clinical, biological and radiological data were determined.
Results. 86 patients were included in the study [G1: SpO2 >95% (n=51) and G2: SpO2 ≤95% (n=35)]. Compared to G1, G2 was older (48±14 vs. 61±12 years, p=0.0001), included more patients aged ≥ 50 years (37.2 vs. 80.0%, p=0.0001), having an arterial-hypertension (21.6 vs. 45.7%, p=0.0180), a cancer (0.0 vs. 14.3%, p=0.0054), an anemia (25.6 vs. 56.3%, p=0.0069), a leukocytosis (4.7 vs. 21.9%, p=0.0236), a biological inflammatory syndrome (82.5 vs. 100%, p=0.0142), a hyper-uremia (7.0 vs. 37.5%, p=0.0185), a hyper-creatininaemia (4.7 vs. 18.8%, p=0.0356), a tissue damage (41.0 vs. 66.7%, p=0.0341), a diffuse ground-glass opacity (52.0 vs. 71.4%, p=0.0397), band condensations (30.0 vs. 54.3%, p=0.0244), a severe extension (2.0 vs. 25.7%, p=0.0008), and included fewer patients who complained from diarrhea (49.0 vs. 22.9%, p=0.0145), having a nodular ground-glass (66.0 vs. 40.0%, p=0.0177) and a slight extension (78.0 vs. 40.0%, p=0.0004).
Conclusion. Criteria associated with low SpO2 in hospitalized COVID-19 patients were advanced age, a history of arterial-hypertension and cancer, high frequencies of certain biological abnormalities or radiological signs. The diarrhea symptom, the radiological appearance of nodular ground glass, and a slight extension of the radiological lesions appear as protective elements.
Keywords:
Coronavirus, Pneumonia, COVID-19, desaturation, SpO2, severity biomarkers, Patient profile, North-Africa##plugins.themes.academic_pro.article.details##
References
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