Lower Zinc Levels May Increase Mortality Risk In Patients Wi
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New research presented at this week's ESCMID Conference on Coronavirus Disease (ECCVID), shows that having a lower level of zinc in the blood is associated with a poorer outcome in patients with COVID-19.

The authors did a retrospective analysis of symptomatic admitted patients to a tertiary university hospital in Barcelona, Spain. Data on demography, pre-existing chronic conditions, laboratory results and treatment were collected. Clinical severity of COVID-19 was assessed at admission. Fasting plasma zinc levels were measured routinely at admission (baseline) in all patients admitted to the COVID-19 Unit. Computer modelling and statistical analyses were used the assess the impact of zinc on mortality.

During this period of study 611 patients were admitted. The mean age was 63 years, and 332 patients were male (55%). During this period total mortality was 87 patients (14%).

This study includes 249 of these patients (of whom 21 [8%]) died. The authors say the 249 patients in this analysis are representative of the whole cohort of 611, and data collection and analysis for the other patients is ongoing—but the continuation of the study has been made difficult by the arrival of the second wave of SARS-CoV-2 in Spain.

Mean baseline zinc levels among the 249 patients were 61 mcg/dl. Among those who died, the zinc levels at baseline were significantly lower at 43mcg/dl vs 63.1mcg/dl in survivors. Higher zinc levels were associated with lower maximum levels of interleukin-6 (proteins that indicate systemic inflammation) during the period of active infection.

After adjusting by age, sex, severity and receiving hydroxychloroquine, statistical analysis showed each unit increase of plasma zinc at admission to hospital was associated with a 7% reduced risk of in-hospital mortality. Having a plasma zinc level lower than 50mcg/dl at admission was associated with a 2.3 times increased risk of in-hospital death compared with those patients with a plasma zinc level of 50mcg/dl or higher.

The authors conclude: "Lower zinc levels at admission correlate with higher inflammation in the course of infection and poorer outcome. Plasma zinc levels at admission are associated with mortality in COVID-19 in our study. Further studies are needed to assess the therapeutic impact of this association."

Source: https://medicalxpress.com/news/2020-09-zinc-blood-death-patients-covid-.html
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Lower zinc level at the time of admission with patient having lover level could face greater difficulty after during the course of time.
Nov 18, 2020Like