{"id":8258,"date":"2025-08-09T11:07:28","date_gmt":"2025-08-09T08:07:28","guid":{"rendered":"https:\/\/jordan-cardiac.org\/?p=8258"},"modified":"2025-08-09T11:07:29","modified_gmt":"2025-08-09T08:07:29","slug":"why-your-arm-shape-affects-blood-pressure-readings","status":"publish","type":"post","link":"https:\/\/jordan-cardiac.org\/en\/why-your-arm-shape-affects-blood-pressure-readings\/","title":{"rendered":"Why Your Arm Shape Affects Blood Pressure Readings"},"content":{"rendered":"<div>Why Your Arm Shape Affects Blood Pressure Readings<\/div>\n<div><\/div>\n<div>Source:Medscape, August 4, 2025<\/div>\n<div><\/div>\n<div>Summary \u2013<\/div>\n<div><span> 1. Background<\/span><\/div>\n<div><span> \u2022 Blood pressure (BP) measurement is key in diagnosing hypertension and guiding treatment.<\/span><\/div>\n<div><span> \u2022 Even small errors (e.g., 5 mm Hg) can misclassify millions of people worldwide.<\/span><\/div>\n<div><span> \u2022 The standard cuff method (Riva-Rocci-Korotkoff) has been used for over 100 years but depends on proper technique and fit.<\/span><\/div>\n<div><span> 2. Sex Differences<\/span><\/div>\n<div><span> \u2022 Automated cuff BP readings tend to be lower in women than men at the same true (intra-arterial) BP.<\/span><\/div>\n<div><span> \u2022 This may hide cardiovascular risk in women and lead to undertreatment.<\/span><\/div>\n<div><span> 3. Anatomical Factors<\/span><\/div>\n<div><span> \u2022 People with big differences between the top and bottom arm circumference get less accurate readings.<\/span><\/div>\n<div><span> \u2022 Women often have a poor cuff fit because most cuffs are cylindrical and may extend past the elbow.<\/span><\/div>\n<div><span> 4. Cuff Size Effect (NHANES study, 3,735 adults, avg. age 45, 49% women)<\/span><\/div>\n<div><span> \u2022 Women: The larger the cuff, the greater the underestimation (up to \u22126.4 mm Hg with extra-large cuffs).<\/span><\/div>\n<div><span> \u2022 Men: Underestimation occurred only with extra-large cuffs (\u22122.4 mm Hg).<\/span><\/div>\n<div><span> \u2022 Arm shape, body size, and fat distribution influenced accuracy in both sexes.<\/span><\/div>\n<div><span> 5. Key Findings<\/span><\/div>\n<div><span> \u2022 Larger cuffs reduce accuracy, especially in women.<\/span><\/div>\n<div><span> \u2022 Agreement between automated and manual BP classifications drops as cuff size increases.<\/span><\/div>\n<div><span> \u2022 Risk: Misclassification of hypertension \u2192 inappropriate treatment.<\/span><\/div>\n<div><span> 6. Bottom Line<\/span><\/div>\n<div><span> \u2022 BP cuff choice matters.<\/span><\/div>\n<div><span> \u2022 Women, especially with larger cuffs, are more likely to have their BP underestimated, potentially missing needed care.<\/span><\/div>\n<div><span> \u2022 More research is needed to adjust technology and improve cuff design for different arm shapes.<\/span><\/div>\n<div><\/div>\n<div><a href=\"https:\/\/click.mail.medscape.com\/?qs=3e6221143e6c53b24894a4c967a8476c5868e09374b95725281ecea3f117ced6e6f26e261338d50c71d5d5e36cd5cfc0ea984a68d821e8f32ec91e4becbc9482\">https:\/\/click.mail.medscape.com\/?qs=3e6221143e6c53b24894a4c967a8476c5868e09374b95725281ecea3f117ced6e6f26e261338d50c71d5d5e36cd5cfc0ea984a68d821e8f32ec91e4becbc9482<\/a><\/div>\n<div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Why Your Arm Shape Affects Blood Pressure Readings Source:Medscape, August 4, 2025 Summary \u2013 1. Background \u2022 Blood pressure (BP) measurement is key in diagnosing hypertension and guiding treatment. \u2022 Even small errors (e.g., 5 mm Hg) can misclassify millions of people worldwide. \u2022 The standard cuff method (Riva-Rocci-Korotkoff) has been used for over 100 [&hellip;]<\/p>\n","protected":false},"author":145,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-8258","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/jordan-cardiac.org\/en\/wp-json\/wp\/v2\/posts\/8258","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jordan-cardiac.org\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jordan-cardiac.org\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jordan-cardiac.org\/en\/wp-json\/wp\/v2\/users\/145"}],"replies":[{"embeddable":true,"href":"https:\/\/jordan-cardiac.org\/en\/wp-json\/wp\/v2\/comments?post=8258"}],"version-history":[{"count":1,"href":"https:\/\/jordan-cardiac.org\/en\/wp-json\/wp\/v2\/posts\/8258\/revisions"}],"predecessor-version":[{"id":8260,"href":"https:\/\/jordan-cardiac.org\/en\/wp-json\/wp\/v2\/posts\/8258\/revisions\/8260"}],"wp:attachment":[{"href":"https:\/\/jordan-cardiac.org\/en\/wp-json\/wp\/v2\/media?parent=8258"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jordan-cardiac.org\/en\/wp-json\/wp\/v2\/categories?post=8258"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jordan-cardiac.org\/en\/wp-json\/wp\/v2\/tags?post=8258"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}