Key Moments

230 ‒ Cardiovascular disease in women: prevention, risk factors, lipids, and more

Peter Attia MDPeter Attia MD
Science & Technology3 min read136 min video
Nov 7, 2022|25,505 views|426|125
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TL;DR

Cardiovascular disease is the leading cause of death globally and in women. Early prevention and lifestyle changes are crucial.

Key Insights

1

Cardiovascular disease (CVD) is the leading cause of death worldwide and in women, yet awareness is declining.

2

While historically lower, CVD mortality in younger women is rising, narrowing the gap with cancer.

3

Women are often underdiagnosed and undertreated for CVD risk factors, partly due to historical underrepresentation in clinical trials.

4

Lipid management, particularly focusing on ApoB and lifetime exposure, is crucial, with specific considerations for women across their lifespan.

5

Pregnancy and conditions like PCOS significantly impact a woman's cardiovascular health and lifetime risk.

6

Menopause accelerates CVD risk, primarily due to hormonal changes and subsequent metabolic shifts.

7

The role of lifestyle factors (diet, exercise, stress) is paramount, but pharmacological interventions are essential for high-risk individuals, especially with new therapies available.

THE ESCAlATING BURDEN OF CARDIOVASCULAR DISEASE

Cardiovascular disease (CVD) remains the leading cause of death globally and, critically, for women. Despite this, awareness of heart disease as a primary threat to women is declining, with many still prioritizing cancer as their main concern. This is particularly alarming as CVD mortality rates in younger women are increasing, signaling a worrying trend that necessitates a renewed focus on prevention and early intervention.

SEX-SPECIFIC DIFFERENCES AND UNDERSTANDING RISK

Women experience CVD differently than men. They are often underdiagnosed and undertreated due to historical underrepresentation in clinical trials, leading to a perception that CVD is less prevalent or less severe in women. This perception is dangerous, as conditions like diabetes and smoking confer a greater relative risk in women. Furthermore, women face unique risk factors throughout their lives, including polycystic ovary syndrome (PCOS), pregnancy complications, and early menopause, all of which significantly influence their cardiovascular health trajectory.

LIPID MANAGEMENT ACROSS THE FEMALE LIFESPAN

Managing lipids, specifically ApoB, is critical for preventing atherosclerosis. The lifetime exposure to elevated LDL cholesterol, the 'area under the curve,' is more important than short-term risk scores, especially in younger individuals. Hormonal changes throughout a woman's life, from puberty through perimenopause and menopause, directly impact lipid profiles. Pre-menopausal women often benefit from protective effects of estrogen, but this protection diminishes post-menopause, leading to higher LDL levels and increased risk.

IMPACT OF REPRODUCTIVE HEALTH AND HORMONAL CHANGES

Conditions like PCOS and adverse pregnancy outcomes, such as preeclampsia and gestational diabetes, significantly elevate a woman's lifetime CVD risk. Pregnancy itself causes marked, albeit temporary, physiological shifts in lipid levels. Menopause, marked by declining estrogen, is a major accelerator of CVD risk. This transition leads to unfavorable lipid changes, increased visceral fat, insulin resistance, and endothelial dysfunction, underscoring the importance of proactive cardiovascular health management during and after this period.

THE ROLE OF PHARMACOLOGY AND EMERGING THERAPIES

While lifestyle interventions are foundational, pharmacological treatments are indispensable, particularly for high-risk individuals. Statins remain a cornerstone, benefiting women as much as men, despite historical underuse and patient hesitancy often driven by the nocebo effect. New therapies, including PCSK9 inhibitors, bempedic acid, and GLP-1 receptor agonists, offer powerful options for lipid lowering and weight management, with some demonstrating cardiovascular benefits independently of weight loss. These advancements provide greater flexibility in achieving treatment goals.

ADDRESSING LIFESTYLE, STRESS, AND CLINICAL TRIAL INCLUSION

Beyond pharmacotherapy, a holistic approach encompassing diet, exercise, sleep, and mental well-being is crucial. Stress, often underestimated, can contribute significantly to cardiovascular risk through direct physiological pathways. The persistent underrepresentation of women in clinical trials remains a major barrier to fully understanding and addressing their specific cardiovascular needs. Greater inclusivity in trial design, leadership, and recruitment is essential to ensure that evidence-based recommendations are applicable and effective for all women.

Common Questions

Despite past declines, heart disease mortality is increasing in younger women (0.5% per year) and is the fastest-growing death rate in middle-aged women (45-64). This reversal is largely attributed to the epidemics of obesity, diabetes, and other cardiometabolic diseases, alongside a persistent lack of awareness among women and clinicians regarding women's cardiovascular risk. (Timestamp: 429)

Topics

Mentioned in this video

Studies & Research
GOLD registry

A registry in the U.S. showing that more than two-thirds of high-risk ASCVD patients remain above the LDL goal of 70 mg/dL and undertreated.

The Lancet

A leading medical journal where major cardiovascular trials are published.

INTERHEART study

A study cited for data indicating that 90% of coronary heart disease risk is attributable to preventable risk factors.

Copenhagen General Population Study

A study showing that Lp(a) levels above 50 mg/dL are associated with increased cardiovascular risk even when LDL is below 70 mg/dL.

ODYSSEY trial

A cardiovascular outcome trial for Alirocumab (a PCSK9 inhibitor) in patients with recent acute coronary syndrome, showing a 15% reduction in major adverse cardiovascular events.

ORION 9, 10, and 11 trials

Trials for Inclisiran, demonstrating its LDL-lowering effects (around 50%), with women showing similar reduction.

ORION-4 trial

The ongoing cardiovascular outcome trial for Inclisiran, anticipated to show reduction in major adverse cardiovascular events due to LDL lowering.

PREDIMED study

A study cited as foundational evidence for the benefits of monounsaturated fatty acids (MUFAs) in heart health.

Lyon Heart Study

A study cited as foundational evidence for the benefits of monounsaturated fatty acids (MUFAs) in heart health.

MESA study

A study that showed women with higher androgens had more coronary artery calcium progression, worse endothelial reactivity, and increased concentric remodeling.

CLEAR Outcomes trial

The major cardiovascular outcome trial for Bempedoic Acid, which enrolled nearly 50% women (likely due to higher statin intolerance) and is anticipated to show significant benefits.

New England Journal of Medicine

A leading medical journal where major cardiovascular trials are published.

Yum Mi young Cardinal infarction cohort

A cohort study showing women were less likely to have been treated and accurately perceived to be at lower risk for myocardial infarction prior to an event.

STEP trials

Clinical trials for Semaglutide (agonists) that showed approximately 30 pounds of weight loss.

PALM registry

A registry indicating that women are less likely to be offered statin therapy by physicians compared to men.

Women's Health Initiative (WHI) study

A landmark study that demonstrated increased cardiovascular risk with hormone therapy, especially in older women far from menopause, leading to changes in guidelines.

Santorini registry

A registry in Europe that, similar to the GOLD registry, indicated undertreatment and failure to reach LDL goals in high-risk ASCVD patients.

SURMOUNT outcome trial

The ongoing outcome trial for Tirzepatide in diabetes.

SAMSON trial

A trial that demonstrated a significant nocebo effect, with up to 90% of reported statin-associated muscle symptoms occurring with placebo as well.

FOURIER trial

A cardiovascular outcome trial for Evolocumab (a PCSK9 inhibitor) in patients with stable ASCVD, showing a 15% reduction in major adverse cardiovascular events.

Drugs & Medications
Evolocumab

A PCSK9 inhibitor (monoclonal antibody) that lowers LDL by 50-60% and Lp(a) by 25%, with positive cardiovascular outcome data from the FOURIER trial.

Rosuvastatin

A high-intensity statin, often preferred due to potentially fewer muscle-associated symptoms and lower-appearing doses (5, 10, 20 mg), but requires dose adjustment in chronic kidney disease.

Tirzepatide

A new dual agonist (GIP and GLP-1 receptor agonist) approved for diabetes with dramatic weight loss effects (up to 50 pounds), but cardiovascular outcome trials for diabetes are ongoing, and not yet FDA approved for weight management.

Oral Contraceptives

Used to treat symptoms of PCOS by reducing hyperandrogenism, but older, higher-estrogen formulations can increase triglyceride levels, while lower-estrogen and transdermal forms have more modest lipid impacts. Generally safe for high-risk women with IUDs.

Semaglutide

A GLP-1 receptor agonist available in injectable (oral formulation outcome data ongoing) form, approved for type 2 diabetes with cardiovascular outcome data, and a separate weight loss indication for obesity/overweight with risk factors.

SGLT2 inhibitors

A class of drugs mentioned in passing, with Peter Attia asking about their mechanism of cardiac event reduction beyond weight loss, similar to GLP-1 agonists.

pravastatin

A statin mentioned among those Peter Attia considers. Not a first choice for Dr. Mikos in general, but relevant for conversations about statin class.

Statins

Lipid-lowering medications that generally benefit women in both primary and secondary prevention, without sex interaction, but women are often less likely to be offered, more likely to decline/discontinue, and more likely to report muscle symptoms.

Inclisiran

A small interfering RNA (siRNA) that inhibits PCSK9 synthesis, lowering LDL by about 50%, with a convenient every-six-month dosing, but outcome data is still pending.

Lovastatin

The first statin approved in 1987, marking a turning point in cardiovascular disease prevention efforts.

Atorvastatin

A high-intensity statin used for potent LDL lowering. It is one of the preferred first-line agents in high-risk patients.

Alirocumab

A PCSK9 inhibitor (monoclonal antibody) that lowers LDL by 50-60% and Lp(a) by 25%, with positive cardiovascular outcome data from the ODYSSEY trial. Often chosen based on insurance approval and ease of use (SureClick device).

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