“…Although the outbreaks of PSH were traditionally described in severe acquired brain injury (ABI) patients [e.g., traumatic brain injury (TBI), anoxic brain injury, stroke, tumors, infections, or unspecified causes], the prevalence of PSH of 33% after TBI compared with 6% after other causes suggests that the dominant underlying cause in PSH is TBI (4). In addition, in the past decade, about 80% of PSH cases have been reported to occur after TBI (5,6). Its wide incidence rates reported ranging from 8 to 33% of PSH reveal the underlying discrepancy of current diagnostic and admission criteria as well as ignorance on disease identification (7).…”