Background:To compare the long-term clinical outcomes of different antihypertensive
drugs in stable patients after acute hemorrhagic stroke (HS).Methods:From January 2001 to December 2013, patients with first-ever primary HS were
identified in the National Health Insurance Research Database, Taiwan.
Patients with traumatic intracerebral hemorrhage and secondary HS were
excluded. Those with first-ever HS were recruited and classified into three
groups: (1) angiotensin-converting enzyme inhibitor/angiotensin receptor
blocker (ACEI/ARB); (2) calcium channel blocker (CCB); and (3) other
antihypertensive drugs (comparison) groups. Propensity score matching was
used to balance the distribution of baseline characteristics, stroke
severity, and medications between any two of the three groups. A validation
study was performed using the databank of the Stroke Registry in Chang-Gung
Healthcare System to reduce the bias. Primary outcomes were recurrent HS,
ischemic stroke, any stroke, and all-cause mortality.Results:Compared to the comparison group, the ACEI/ARB group [35.4%
versus 39.3%; hazard ratio (HR), 0.84; 95% confidence
interval (CI), 0.74–0.95] and CCB group (33.0% versus
41.9%; HR, 0.72; 95% CI, 0.64–0.81) had a lower risk of all-cause mortality
during long-term follow up. The CCB group had a similar risk of all-cause
mortality to the ACEI/ARB group. Risks of recurrent HS, ischemic stroke, or
any stroke were not different between the study groups.Conclusions:Antihypertensive drug class could be important to long-term outcomes in HS
patients in addition to the target control of blood pressure. Both
ACEIs/ARBs and CCBs are associated with lower risks of all-cause mortality.
Our results may be applied to inform future research on hypertensive control
in HS patients.