What causes elevated transaminase levels after COVID-19?
Apr 17, 2023
Source: Cainiu Health
Dr. Guo Xiheng
Introduction
"Post-COVID" usually refers to the period following infection with the novel coronavirus. If elevated transaminase levels occur, this may be due to factors such as immune response, drug-induced liver injury, or virus-induced liver damage. In addition, other comorbidities—such as pneumonia, acute respiratory distress syndrome (ARDS), and renal insufficiency—may also contribute to liver damage and result in elevated transaminase levels.
In general, "post-COVID" refers to the period following infection with the novel coronavirus. If elevated transaminase levels occur during this time, possible causes include immune responses, drug-induced liver injury, or virus-induced liver damage. The details are as follows:
1. Immune response
COVID-19 infection may trigger excessive activation of the immune system, leading to a systemic inflammatory response known as a cytokine storm. This inflammatory reaction can affect multiple organs, including the liver, resulting in liver cell damage and elevated transaminase levels.
2. Drug-induced liver injury
Patients infected with COVID-19 may require treatment with various medications, such as antiviral drugs, anti-inflammatory agents, and anticoagulants. Some of these medications may have adverse effects on the liver, causing abnormal liver function and increased transaminase levels.
3. Virus-induced liver injury
The novel coronavirus may directly damage liver cells, leading to liver dysfunction, including elevated transaminase levels. The virus invades liver cells, triggering an inflammatory response that results in cellular injury and necrosis, thereby impairing liver function.
In addition, during the course of illness, patients may also develop other comorbidities—such as pneumonia, acute respiratory distress syndrome (ARDS), or renal insufficiency—that could potentially harm the liver and lead to elevated transaminase levels. Further evaluation and diagnosis are therefore necessary.
