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Cuff Size Variation Across Manufacturers of Home Blood Pressure Devices: A Current Patient Dilemma
Shamim Shahi1, Sandra L Jackson1, Taylor E Streeter1
1Division for Heart Disease and Stroke Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
Insights
Home blood pressure (BP) monitoring cuffs often lack alignment with American Heart Association (AHA) size recommendations. Inconsistent terminology and sizing hinder accurate BP measurement for hypertension management.
Area of Science:
- Biomedical Engineering
- Cardiovascular Health
- Medical Device Technology
Background:
- Accurate blood pressure (BP) measurement is crucial for hypertension diagnosis and management.
- The American Heart Association (AHA) provides specific cuff size recommendations based on arm circumference.
- Proper cuff sizing is essential for reliable BP monitoring devices.
Purpose of the Study:
- To evaluate cuff size variations in validated home BP monitoring devices.
- To assess the degree of alignment between device cuff sizes and AHA recommendations.
- To identify inconsistencies in manufacturer terminology and sizing thresholds.
Main Methods:
- Data were collected from the US BP Validated Device Listing website.
- Cuff sizes of 42 home BP devices from 13 manufacturers were analyzed.
- Device cuff sizes were compared against AHA recommended ranges: small adult (22-26 cm), adult (27-34 cm), large (35-44 cm), and extra-large (XL) (45-52 cm).
Main Results:
- None of the 42 validated home BP devices fully aligned with AHA cuff size recommendations.
- Over 52% of devices featured broad-range cuffs, often excluding larger arm circumferences (>44 cm).
- Manufacturer terminology for cuff sizes lacked consistency, with varied labels for similar sizes and identical labels for different sizes.
Conclusions:
- US home BP device manufacturers exhibit inconsistent cuff sizing and terminology.
- The lack of standardized cuff sizes does not align with AHA guidelines.
- This inconsistency presents challenges for clinicians and patients in selecting appropriate cuffs for accurate BP monitoring and hypertension management.
Background:
The American Heart Association (AHA) recommends cuff sizes of blood pressure (BP) monitoring devices based on patient arm circumference, which is critical for accurate BP measurement. This study aimed to assess cuff size variation across validated BP devices and to examine the degree of alignment with the AHA recommendations.
Methods:
Data on home BP devices were obtained from the US BP Validated Device Listing website and listed cuff sizes were compared against AHA recommendations: small adult (22-26 cm), adult (27-34 cm), large (35-44 cm), and extra-large (XL) (45-52 cm).
Results:
There were 42 home validated BP devices from 13 manufacturers, and none offered cuffs that were aligned with the AHA recommendations. Over half of the devices (22, 52.4%) were compatible with only a broad-range cuff, generally excluding arm sizes larger than 44 cm. Only 5 devices from 4 manufacturers offered a cuff labeled "XL," and of these, only 3 devices had sizes that covered the AHA XL range. Terminology lacked consistency with manufacturers using: different labels to describe the same-sized cuffs (e.g., 22-42 cm was labeled "integrated," "standard," "adult," "large," and "wide range"); the same labels to describe differently sized cuffs (e.g., cuffs labeled "large" were sized 22-42 cm, 32-38 cm, 32-42 cm, 36-45 cm).
Conclusions:
Manufacturers of US home BP devices employ inconsistent terminologies and thresholds for cuff sizes, and sizes were not aligned with AHA recommendations. This lack of standardization could pose challenges for clinicians and patients attempting to select a properly sized cuff to support hypertension diagnosis and management.
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