Published online May 8, 2015. doi: 10.4254/wjh.v7.i7.954
Peer-review started: December 4, 2014
First decision: January 8, 2015
Revised: January 31, 2015
Accepted: February 10, 2015
Article in press: February 12, 2015
Published online: May 8, 2015
Processing time: 162 Days and 1 Hours
Core tip: Hepatitis B virus reactivation is a potentially fatal but preventable complication of chemotherapy and immunosuppression. Both chronically infected [hepatitis B surface antigen (HBsAg) positive] and previously exposed (HBsAg negative/anti-HBc positive) patients are susceptible, the risk observed to be strongly associated with the potency of the immunosuppressive drug regime and the baseline virological status. The knowledge gaps that require further investigation in the optimal management of this phenomenon are discussed in this review. Recommendations regarding screening, monitoring and the role of antiviral prophylaxis are outlined with reference to current international associations’ guidelines and the best available evidence to date.
