1/ Day 3 & last session of #ASPC2021 on special populations

Talk on MI & HF among people with HIV by Dr. Markella Zanni

Follow this🧵on:
🔹MI risk in people w/ HIV
🔹HF in PWH
🔹CVD preventive approaches tailored to people w/ HIV

@ASPCardio @CardioNerds
2/ Patients with HIV are now living longer ➡️increased risk of CVD

Global burden of atherosclerotic CVD in people living with HIV has tripled over past 2 decades

Relative risk of MI is 1.5-2 in high-income countries

pubmed.ncbi.nlm.nih.gov/23459863/

#ASPC2021
3/ From US Partners database study – adjusted relative risk for MI was around 3 for women & 1.5 for men – regionally specific

Type 1 vs. type 2 MI: both ~50%
Women – more type 2 MI

pubmed.ncbi.nlm.nih.gov/17456578/

#ASPC2021
4/ 🔥Mechanisms🔥
🔸Social & environmental
-ART cohort collaboration study – 6 fold 📈 in events w/ cigarette smoking
🔸Immune dysfunction
🔸Metabolic
🔸Specific effects from ART regimen
-Traditional risk factors (HTN, HLD, BMI, renal dysfunction) also affected by ART

#ASPC2021
5/ US veterans aging cohort study – 50%⬆️MI risk even after adjusting for sex & risk factors

↪️immune dysfunction and activation

HIV promotes inflammation – augmented by social & metabolic risk factors

ART📉inflammatory markers, but still⬆️than pts w/o HIV

#ASPC2021
6/ 📈arterial inflammation in ART treated people w/ HIV (PWH) vs. no HIV #ASPC2021
jamanetwork.com/journals/jama/…

In MACS cohort, increased prevalence of subclinical coronary atherosclerosis on CCTA
ncbi.nlm.nih.gov/pmc/articles/P…

High risk plaque morphology & systemic arterial inflammation
7/ #ASPC2021

In women w/ HIV, studies have shown:
🟤⬆️burden of traditional metabolic risk factors but are less likely to be given prescriptions
🟤Stronger interferon alpha response
🟤⬆️systemic biomarkers
🟤Advanced reproductive aging – low anti-mullerian hormone (AMH)
8/ pubmed.ncbi.nlm.nih.gov/25339186/

ART-treated women w/ HIV ➡️select markers of immune activation 📈across reproductive aging spectrum

‼️ But don't have ⬆️ prevalence of coronary plaque ‼️

Possibly due to systemic inflammation, more microvascular dysfunction & type 2 MI

#ASPC2021
9/ Now onto heart failure...#ASPC2021

RR for HF in women w/ HIV is 3.7 & for men is 2

US Veterans Aging cohort study➡️increased risk of HF in men w/ HIV vs no HIV
pubmed.ncbi.nlm.nih.gov/28384660/

US Partners healthcare database – women➡️more HFpEF
10/ Diastolic dysfunction rate is 30% in people living w/ HIV vs. 12% in general population

Metabolic dysregulation and inflammation lead to diastolic dysfunction

#ASPC2021
11/ HIV treated w/ ART:⬆️intramyocardial triglyceride content #ASPC2021

🔹Inverse relationship w/ steatosis & diastolic dysfunction
🔹IMTG 📈across reproductive aging continuum
🔹Circulating monocytes ⬆️CCR2 receptor in HIV women – expression related to myocardial fibrosis
12/ Preventive Approaches Tailored to PWH

⁉️ ART ⁉️

🔑D:A:D study: association between ART & CVD
🔑SMART study: continuous ART better than intermittent ART
🔑START study: intermediate ART decreases events & mortality

#ASPC2021
13/ But, even ART started early may not sufficiently reduce arterial inflammation

Newly diagnosed PWH - ART suppressed viremia but no reduction in arterial inflammation (via FDG-Pet/CT)
jamanetwork.com/journals/jamac…

#ASPC2021
14/ Address social, behavioral, & environmental factors
Ex: D:A:D study showed significant📉in CHD w/ smoking cessation

Also, medication-based modification of traditional risk factors

But...traditional CVD risk assessment algorithms not validated in people w/ HIV

#ASPC2021
15/ Possible Immune modulatory strategies

But need to be careful & ideally for ART treated HIV would want to decrease atherogenic immune activation without decreasing body’s immune defenses

#ASPC2021
16/ Statins in HIV
🔴Effectively⬇️LDL
🔴⬇️ immune activation markers
🔴⬇️coronary atherosclerotic plaque

BUT low prescribing patterns in this population

Had the opportunity to work on this review on cholesterol-lowering therapy in pts w/ HIV:
pubmed.ncbi.nlm.nih.gov/32979175/

#ASPC2021
17/ REPRIEVE trial hypothesis #ASPC2021
↪️Statin therapy will prevent ASCVD MACE in pts w/ HIV on ART

🔸7,000 pts w/ HIV & no CVD
🔸Pitavastatin,🚫interact w/ ART
🔸Explore sex specific mechanisms

Historically women have been underrepresented in HIV research & CVD prevention
18/ Summary #ASPC2021

🔹People w/ HIV living longer:⬆️risk of MI & HF
🔹Social/behavioral & environmental factors, traditional metabolic + persistent systemic immune activation
🔹Need to tailor preventive approaches
🔹Awaiting results of REPREIVE trial
reprievetrial.org

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More from @Gurleen_Kaur96

24 Jul
1/ #ASPC2021 talk for Honorary Fellowship Award by @NMHheartdoc on New Kind of Prevention – Reducing CV Health Disparities at Community and Individual Level

🧵from session

@ASPCardio @CardioNerds
2/ #ASPC2021
Covid-19 deaths by race and ethnicity in the US:
1 in 555 Black Americans has died

Populations w/ highest disease burden➡️ lowest vaccination rates
3/ Any discussion of prevention shouldn’t start at hypertension, dyslipidemia, but at the root cause of those inequities.

Need to address policy. All policy is health policy.

Stolen breaths nejm.org/doi/full/10.10…

#ASPC2021
Read 10 tweets
24 Jul
1/ Great #ASPC2021 session by @RonBlankstein on Chest Pain and Imaging

Follow this🧵for some takeaways on
🟣Stress Testing vs. Anatomical Testing
🟣Coronary CTA
🟣Guidelines

@ASPCardio @CardioNerds Image
2/ ‼️ Imaging tests alone do NOT change pt outcomes but how we act on them might

‼️ No one test is always the best test

‼️ Test selection influenced by multiple factors: local availability, prior training, guidelines, evidence

🔜AHA/ACC New Chest Pain Guidelines

#ASPC2021
3/ Stress testing vs. Anatomical

ETT: exercise capacity, not as great for ischemia

SPECT MPI: reversible perfusion deficits, underestimates extent of disease esp if multi-vessel

PET MPI: measure absolute blood flow, calculate myocardial blood flow reserve

#ASPC2021 ImageImage
Read 10 tweets
24 Jul
1/ #ASPC2021 Day 2 continues!

@DrMarthaGulati presents on Ischemic Heart Disease Without Obstructive Coronary Arteries (INOCA)

Follow this🧵on INOCA:
♦️Outcomes
♦️Mechanisms of ischemia and diagnosis
♦️Guidelines

@ASPCardio @CardioNerds Image
2/ Definition of INOCA: symptoms of ischemia in the absence of obstructive CAD or flow-limited disease

Check out this great infographic by @najahakhan, @CardioNerds Academy Fellow, on INOCA

#ASPC2021 Image
3/ ✨Obstructive CAD is just one phenotype of IHD✨

INOCA – often normal LVEF, originally thought ischemia not present

But data shows elevated risk for cardiac events➡️poor outcomes

Guidelines haven’t caught up yet – focus on obstructive lesions

#ASPC2021 Image
Read 11 tweets
24 Jul
1/ Great #ASPC2021 session by @dramitkhera on ACS in Patients with COVID-19

Follow this🧵on pts w/ COVID
🔷Prevention of ACS events
🔷Identification of ACS
🔷Management of ACS

@ASPCardio @CardioNerds
2/ 8 fold📈in AMI w/ COVID even in pts with no ASCVD/FH

Absolute risk for AMI📈in pts with ASCVD. Even higher for FH +ASCVD bit.ly/3eJ2csW

Based on NHANES, 75% of US pop has risk factors (CKD, obesity, smoking, T2DM) for severe COVID
bit.ly/3xYxpQn

#ASPC2021
3/ 🌟Prevention of ACS🌟

🗝️Address barriers to medication adherence and access
🗝️Team-based approach
🗝️Regular physical activity and nutrition
🗝️Cardiac rehab
🗝️Utilize telehealth
🗝️Counsel on promptly reporting new symptoms

#ASPC2021
Read 12 tweets
17 May
Essentials of Stable Ischemic Heart Disease

♦️Plaque Characteristics & Progression
♦️Choosing From Imaging Toolbox
♦️Perils of Polypharmacy
♦️Who & When To Revascularize
♦️Overview of Guidelines

🧵on this great @ACCinTouch session from today #ACC21 #ACCMedStudent
1/Plaque Progression #ACC21

Non-atherosclerotic intimal lesions➡️progressive atheroscl. lesions (fibroatheroma)➡️lesions w/ acute thrombi

Plaque rupture = lesion growth
Lumen area maintained till 40% narrowing
Narrowing beyond 40% occurs w/ plaque rupture+intraplaque hemorrhage
2/Plaque Characteristics #ACC21

Coronary artery calcification begins as micro-calcification➡️fragment➡️sheet➡️nodular

Stable plaque?
🔸Associated with DM, HTN, smoking
🔸Most common is fibrocalcific plaque (mostly sheet Ca)

Unstable plaque is mostly fragmented Ca
Read 8 tweets
16 May
💥The Ultimate Guide to Lipids💥
🟢Lipid biology
🟢Physical exam clues for lipid disorders
🟢Lipid tests & interpretation
🟢CV risk assessment
🟢Fundamentals of lipid management
🟢Review of guidelines

🧵on this great @ACCinTouch session from today #ACC21 #ACCMedStudent #ACCPrev
1/ Lipid Biology #ACC21 #ACCMedStudent
Lipoprotein-central core of cholesterol ester/TG surrounded by apolipoprotein

Dietary fat➡️chylomicrons➡️TG metabolized in muscle & adipose by lipoprotein lipase➡️chylomicron remnants liver uptake➡️VLDL➡️FFA & IDL ➡️LDL➡️LDL receptor uptake
2/ Lipid Biology continued...#ACC21 #ACCMedStudent

HDL formed by liver/intestines - acquire cholesterol through reverse cholesterol transport

Lp(a) - modified LDL particle w/ additional apolipoprotein (a). Oxidation pro-inflammatory,⬆️atherosclerosis.
Read 10 tweets

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