When a person catches COVID-19, the virus can cause problems beyond just the lungs. One specific issue is microvascular thrombosis, which means tiny blood clots forming in the smallest blood vessels of the body. This review looked at how these small clots affect kidney health in patients with COVID-19, including those who were critically ill or children with severe symptoms.
The data shows a clear link between these small clotting events and acute kidney injury, which is a sudden decrease in kidney function. For example, about 32.6% of critically ill patients developed this kidney damage. Furthermore, patients with these blood clots faced a much higher risk of needing renal replacement therapy, which is a form of dialysis to do the work of the kidneys.
While the evidence for this link is strong, it is important to remember that this was a review of existing data rather than a new clinical trial. The findings suggest that doctors should monitor kidney health closely and early in the treatment of high-risk patients to help protect their organs from these complications.