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BMJ. 2018 Sep 12;362:k3503. doi: 10.1136/bmj.k3503.

Intensification of older adults' outpatient blood pressure treatment at hospital discharge: national retrospective cohort study.

Author information

1
Division of General Internal Medicine, University of California San Francisco, San Francisco, CA 94123, USA.
2
Division of Hospital Medicine, University of California San Francisco, San Francisco, CA, USA.
3
San Francisco Veterans Affairs Medical Center, San Francisco, CA, USA.
4
Division of Geriatrics, University of California San Francisco, San Francisco, CA, USA.

Abstract

OBJECTIVES:

To assess how often older adults admitted to hospital for common non-cardiac conditions were discharged with intensified antihypertensive treatment, and to identify markers of appropriateness for these intensifications.

DESIGN:

Retrospective cohort study.

SETTING:

US Veterans Administration Health System.

PARTICIPANTS:

Patients aged 65 years or over with hypertension admitted to hospital with non-cardiac conditions between 2011 and 2013.

MAIN OUTCOME MEASURES:

Intensification of antihypertensive treatment, defined as receiving a new or higher dose antihypertensive agent at discharge compared with drugs used before admission. Hierarchical logistic regression analyses were used to control for characteristics of patients and hospitals.

RESULTS:

Among 14‚ÄČ915 older adults (median age 76, interquartile range 69-84), 9636 (65%) had well controlled outpatient blood pressure before hospital admission. Overall, 2074 (14%) patients were discharged with intensified antihypertensive treatment, more than half of whom (1082) had well controlled blood pressure before admission. After adjustment for potential confounders, elevated inpatient blood pressure was strongly associated with being discharged on intensified antihypertensive regimens. Among patients with previously well controlled outpatient blood pressure, 8% (95% confidence interval 7% to 9%) of patients without elevated inpatient blood pressure, 24% (21% to 26%) of patients with moderately elevated inpatient blood pressure, and 40% (34% to 46%) of patients with severely elevated inpatient blood pressure were discharged with intensified antihypertensive regimens. No differences were seen in rates of intensification among patients least likely to benefit from tight blood pressure control (limited life expectancy, dementia, or metastatic malignancy), nor in those most likely to benefit (history of myocardial infarction, cerebrovascular disease, or renal disease).

CONCLUSIONS:

One in seven older adults admitted to hospital for common non-cardiac conditions were discharged with intensified antihypertensive treatment. More than half of intensifications occurred in patients with previously well controlled outpatient blood pressure. More attention is needed to reduce potentially harmful overtreatment of blood pressure as older adults transition from hospital to home.

PMID:
30209052
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Conflict of interest statement

Competing interests: All authors have completed the ICMJE uniform disclosure form at www.icmje.org/coi_disclosure.pdf (available on request from the corresponding author) and declare: grant support from the US National Institute of Aging and US Health Resources and Services Administration for the submitted work; no financial relationships with any organizations that might have an interest in the submitted work in the previous three years; no other relationships or activities that could appear to have influenced the submitted work.

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