Meanings of pre-existing chronic in английском

Very-low GA and pre-existing chronic diseases are associated with symptomatic infection.

This may have caused a fatal acute liver failure that complicated the pre-existing chronic liver disease.

We extracted data on diagnoses during the follow-up period from the patients' medical records as well as data on pre-existing chronic diseases.

His pre-existing chronic GVHD of the skin disappeared and immunosuppressive therapy could be gradually tapered and finally withdrawn 71 months after liver transplantation.

About 2.2 million people on the individual market have some form of a pre-existing chronic condition, according to Avalere Health, a research and consulting firm.

One patient developed four serious infections requiring antibiotic treatment (1 pneumonia, 3 exacerbations of her pre-existing chronic bronchitis) within follow up of 45 months.