Strict control [ systolic BP ( SBP ) < 140 mmHg ] was not consistently better than mild control ( SBP < 150 mmHg ) for adults aged ≥65 years .
Mild SBP control benefitted subjects in all age ranges over 65 years .
Conclusions In this review , older adults with hypertension had decreased cardiovascular morbidity and mortality  with antihypertensives compared with no treatment .
Strict control was not consistently better than mild control in older adults .
The current evidence is insufficient to determine the safest , most beneficial hypertension regimen in older adults
Background Hypertension increases with increasing age .
Optimal treatment of hypertension is important to reduce cardiovascular disease .
Recent guidelines for hypertension have made recommendations for older adults but are supported by evidence that includes younger individuals .
This systematic review evaluates the benefits and harms of antihypertensive agents in adults aged ≥65 years .
Incident dementia and blood pressure lowering in the Hypertension in the Very Elderly Trial cognitive function assessment (HYVET-COG): a double-blind, placebo controlled trial
BACKGROUND Observational epidemiological studies have shown a positive association between hypertension and risk of incident dementia ; however , the effects of antihypertensive therapy on cognitive function in controlled trials have been conflicting , and meta-analyses of the trials have not provided clear evidence of whether antihypertensive treatment reduces dementia incidence . The Hypertension in the Very Elderly trial ( HYVET ) was design ed to assess the risks and benefits of treatment of hypertension in elderly patients and included an assessment of cognitive function . METHODS Patients with hypertension ( systolic pressure 160 - 200 mm Hg ; diastolic pressure < 110 mm Hg ) who were aged 80 years or older were enrolled in this double-blind , placebo-controlled trial . Participants were r and omly assigned to receive 1.5 mg slow release indapamide , with the option of 2 - 4 mg perindopril , or placebo . The target systolic blood pressure was 150 mm Hg ; the target diastolic blood pressure was 80 mm Hg . Participants had no clinical diagnosis of dementia at baseline , and cognitive function was assessed at baseline and annually with the mini-mental state examination ( MMSE ) . Possible cases of incident dementia ( a fall in the MMSE score to < 24 points or a drop of three points in 1 year ) were assessed by st and ard diagnostic criteria and expert review . The trial was stopped in 2007 at the second interim analysis after treatment result ed in a reduction in stroke and total mortality . Analysis was by intention to treat . The trial is registered with Clinical Trials.gov , number NCT00122811 . FINDINGS 3336 HYVET participants had at least one follow-up assessment ( mean 2.2 years ) and were included : 1687 participants were r and omly assigned to the treatment group and 1649 to the placebo group . Only five reports of adverse effects were attributed to the medication : three in the placebo group and two in the treatment group . The mean decrease in systolic blood pressure between the treatment and placebo groups at 2 years was systolic -15 mm Hg , p<0.0001 ; and diastolic -5.9 mm Hg , p<0.0001 . There were 263 incident cases of dementia . The rates of incident dementia were 38 per 1000 patient-years in the placebo group and 33 per 1000 patient-years in the treatment group . There was no significant difference between treatment and placebo groups ( hazard ratio [ HR ] 0.86 , 95 % CI 0.67 - 1.09 ) ; however , when these data were combined in a meta- analysis with other placebo-controlled trials of antihypertensive treatment , the combined risk ratio favoured treatment ( HR 0.87 , 0.76 - 1.00 , p=0.045 ) . INTERPRETATION Antihypertensive treatment  in elderly patients does not statistically reduce incidence of dementia . This negative finding might have been due to the short follow-up , owing to the early termination of the trial , or the modest effect of treatment . Nevertheless , the HYVET findings , when included in a meta- analysis , might support antihypertensive treatment to reduce incident dementia
Strict control [ systolic BP ( SBP ) < 140 mmHg ] was not consistently better than mild control ( SBP < 150 mmHg ) for adults aged ≥65 years .
Mild SBP control benefitted subjects in all age ranges over 65 years .
Conclusions In this review , older adults with hypertension had decreased cardiovascular morbidity and mortality  with antihypertensives compared with no treatment .
Strict control was not consistently better than mild control in older adults .
The current evidence is insufficient to determine the safest , most beneficial hypertension regimen in older adults
Background Hypertension increases with increasing age .
Optimal treatment of hypertension is important to reduce cardiovascular disease .
Recent guidelines for hypertension have made recommendations for older adults but are supported by evidence that includes younger individuals .
This systematic review evaluates the benefits and harms of antihypertensive agents in adults aged ≥65 years .