To determine when liver bleeding occurs during the development of HELLP syndrome.
The English literature was searched for all reports of HELLP syndrome associated with liver bleeding.
Eighty-seven case summaries of liver bleeding in the setting of HELLP syndrome were included. The standard definition of HELLP syndrome was used with expansion into the Mississippi classification system, supplemented by patients with partial HELLP syndrome.
Demographic and clinical data were collected and recorded in an Excel database.
Liver bleeding was detected in 18 (20.7 % ) patients with class 1 HELLP syndrome, 24 (27.6 % ) with class 2 HELLP syndrome, and 12 (13.8 % ) with class 3 or partial HELLP syndrome. In 33 (37.9 % ) patients, the exact class of HELLP syndrome at the time liver bleeding was detected could not be determined from the published descriptions.
Liver bleeding can occur early during HELLP syndrome development, not only in patients with advanced, class 1 illness.