Names & Terms You Will Hear
Plain-language meanings for the terms your care team may use.
| Term | Meaning |
|---|---|
| Aortic Stenosis (AS) | the medical name we use in the chart |
| Aortic valve stenosis | longer form, same meaning |
| Calcific aortic stenosis | the most common kind in older adults — calcium build-up on the leaflets |
| Degenerative AS | another name for calcific AS |
| Bicuspid aortic valve (BAV) | born with two leaflets instead of three; tends to develop AS earlier |
| Rheumatic aortic stenosis | from rheumatic heart disease (rare in the US, common globally) |
| Critical AS | very severe AS — valve area at or below 0.6 cm² or symptoms despite trial of medicines |
| Severe AS | valve area ≤ 1.0 cm², mean gradient ≥ 40 mm Hg, peak velocity ≥ 4 m/s |
| Symptomatic AS | AS with symptoms (shortness of breath, chest pain, fainting); usually triggers intervention |
| Asymptomatic AS | AS with no symptoms — needs surveillance, sometimes early intervention |
| AVA | Aortic Valve Area — the size of the opening in cm² |
| Gradient | the pressure jump from the heart into the aorta as blood crosses the valve |
What Is Aortic Stenosis?
- The aortic valve is the door from the heart's main pumping chamber (left ventricle) into the body's main artery (the aorta).
- Aortic stenosis means that door is narrowed. The heart has to work harder to push blood through.
- It is one of the most common valve problems in older adults — about 1 in 8 adults over 75 has at least mild AS.
- Untreated severe AS is dangerous. Once symptoms appear, average survival without valve replacement is only about 2 years.
- The good news: AS is fixable. Two well-tested treatments (TAVR and SAVR) restore normal blood flow.
Why It Matters
- Shortness of breath with exertion — most common first symptom.
- Chest pressure or angina — sometimes called 'effort angina'.
- Fainting (syncope) — especially with exertion. A warning sign that requires urgent evaluation.
- Fatigue or reduced exercise capacity — easy to dismiss as 'getting older'.
- Heart failure signs — leg swelling, sleeping on more pillows, waking short of breath.
- Palpitations — especially atrial fibrillation, which can become poorly tolerated when AS is severe.
- No symptoms at all — many patients have severe AS yet feel fine. Yearly echoes catch the worsening before symptoms.
Treatment Options
Shown in English for your safety — this section is not automatically translated. Confirm with your doctor or call the office.
- The aortic valve is the door from the heart's main pumping chamber (left ventricle) into the body's main artery (the aorta).
- Aortic stenosis means that door is narrowed. The heart has to work harder to push blood through.
- It is one of the most common valve problems in older adults — about 1 in 8 adults over 75 has at least mild AS.
- Untreated severe AS is dangerous. Once symptoms appear, average survival without valve replacement is only about 2 years.
- The good news: AS is fixable. Two well-tested treatments (TAVR and SAVR) restore normal blood flow.
- Once any AS is diagnosed, it usually worsens at a steady rate of about 0.1 to 0.3 cm² area loss per year.
- Faster progression: more calcium on echo, kidney disease, smoking, hypertension, older age.
- Slower progression: bicuspid valves in younger patients (sometimes), aggressive risk-factor control.
- Progression is silent. The valve narrows years before symptoms start.
- Mild AS rarely needs anything beyond yearly check-ups.
- Moderate AS needs an echo every 1 to 2 years and a closer eye on symptoms.
- Severe AS needs an echo every 6 to 12 months and a full symptom review at every visit.
- There is no medicine that fixes AS. Statins do not slow it. Blood pressure medicines and treating other heart disease are still important.
- TAVR (Transcatheter Aortic Valve Replacement) — a new valve through a catheter, no chest opening. The most common choice for most patients today.
- SAVR (Surgical Aortic Valve Replacement) — open-heart surgery. Used when TAVR anatomy is unfavorable or other heart surgery is needed at the same time.
- Balloon valvuloplasty — a temporary, palliative option. Restenosis happens within months. Sometimes used as a bridge.
- For complete TAVR detail, see Dr. Ali's TAVR Patient Education Guide (cross-referenced at the back of this guide).
Risks, Benefits, and Alternatives
Shown in English for your safety — this section is not automatically translated. Confirm with your doctor or call the office.
Every choice has trade-offs. Use this table to start the shared decision conversation with your care team.
| Option | Risks | Benefits | Alternatives |
|---|---|---|---|
| Watchful waiting (mild/moderate AS, no symptoms) | AS will progress; symptoms can appear suddenly. Without surveillance, you may miss the right window. | No procedure risk. Low cost. Most appropriate for early disease. | Earlier echo schedule; intervention if severe AS criteria met. |
| Early intervention (asymptomatic very severe AS) | Procedure risk now in someone feeling fine; leakage, conduction issues, lifelong follow-up. | RECOVERY and AVATAR show better long-term survival vs waiting in selected patients with very severe AS and good function. | Continued watchful waiting with closer monitoring (echo every 3–6 months). |
| TAVR for symptomatic severe AS | Stroke (1–3%), pacemaker (5–15%), paravalvular leak, vascular access issues. See TAVR guide for detail. | Less invasive than SAVR. Quick recovery. Comparable mortality at low risk through 5 years (PARTNER 3, Evolut Low Risk). | SAVR (open surgery), conservative care (poor prognosis if untreated). |
| SAVR for symptomatic severe AS | Sternotomy recovery, atrial fibrillation post-op (~30%), longer hospital stay, bleeding/stroke similar overall to TAVR. | Direct visualization. Decades of durability data. Allows concomitant CABG or other valve work. | TAVR (less invasive), staged procedures. |
Common Misconceptions
| Myth | Reality |
|---|---|
| If I have no symptoms, AS does not matter. | AS progresses silently. Yearly echoes catch worsening before symptoms appear and let us plan. |
| Statins will fix or slow AS. | Trials (SEAS, SALTIRE) showed statins do NOT slow AS progression. Take them for cholesterol reasons, not for the valve. |
| AS is a death sentence in older adults. | Modern TAVR has excellent results into the 90s for the right patient. Age alone does not rule out treatment. |
| If my doctor says it is moderate, it cannot become severe quickly. | AS can progress 0.3 cm² area loss per year or faster. Moderate today can be severe in 3 years. |
| Mechanical valves are always better. | Mechanical valves last longer but require lifelong warfarin. For most older patients, tissue valves (used in TAVR and most SAVRs now) are preferred. |
| Once I have a new valve, I am cured forever. | Tissue valves can wear out over 10–20 years. Repeat valve work (valve-in-valve TAVR) is feasible in most cases. |
| My family doctor's exam will catch AS. | The murmur of AS is easy to miss, especially in heavy patients or with high blood pressure. Echo is the only reliable test. |
| Bicuspid AS only affects young people. | Bicuspid AS shows up earlier (40s–60s) but the valve still wears down with calcium over time. |
Possible Complications
Knowing what can go wrong helps you spot problems early. Most complications are uncommon, especially with treatment.
| Where / What | What Can Happen |
|---|---|
| Heart failure | AS makes the left ventricle work too hard for too long; eventually it weakens or stiffens. — Treat AS itself. Manage volume status, treat hypertension, watch BNP. |
| Atrial fibrillation | Common in advanced AS; sudden heart-rate jumps are poorly tolerated. — Rate or rhythm control. Stroke prevention based on CHA2DS2-VASc score. |
| Sudden death | Most common in symptomatic patients without intervention. Up to 5% per year risk in symptomatic severe AS. — Refer for valve replacement when symptoms appear. |
| Conduction issues | AV block or LBBB from calcium extending into the conduction system. — Pacemaker if needed; relevant before TAVR planning. |
| Endocarditis | Infection of the diseased valve. — Prophylactic antibiotics for high-risk procedures (per guidelines); fevers warrant blood cultures. |
| Bleeding (Heyde syndrome) | GI bleeding from acquired von Willebrand disease in severe AS. — Address with valve replacement; transfusion as needed in the meantime. |
Points to Know
Shown in English for your safety — this section is not automatically translated. Confirm with your doctor or call the office.
If you remember nothing else, remember these key points.
- Severe AS is defined by gradient ≥ 40 mm Hg, AVA ≤ 1.0 cm², or jet velocity ≥ 4 m/s.
- Once symptoms start in severe AS, untreated mortality is about 50% in 2 years.
- Yearly echo is the cornerstone of AS surveillance. Bring your reports to every visit.
- Tell us right away about new shortness of breath, chest pressure, or any fainting.
- Statins do not fix AS. Take them for cholesterol; manage AS with surveillance and intervention.
- Most patients today get TAVR. SAVR is reserved for specific anatomic or surgical situations.
- Keep blood pressure controlled. Treat sleep apnea. Stay active within your safe range.
- Bring up AS in any pre-procedure or anesthesia consent — sedation choices change with severe AS.
When to Call Us — and When to Call 911
Shown in English for your safety — this section is not automatically translated. Confirm with your doctor or call the office.
If you are not sure, call. We would rather hear from you twice than miss a real problem.
- Sudden chest pressure, severe shortness of breath, or passing out — call 911.
- New or worsening shortness of breath with light activity — call us within 24 hours.
- New chest pressure with exertion — call us within 24 hours.
- New fainting or near-fainting — call us same day; do not drive.
- Sudden weight gain (more than 3 lb overnight), new ankle swelling, or pillow-needing breathing — call us within 24 hours.
- Fever for more than 48 hours, especially after a dental or surgical procedure — call us same day to rule out endocarditis.
- Any new heart rhythm you can feel — flutters, racing, skipped beats — call us within 24 hours.
- Bleeding more than usual (gums, GI, easy bruising) — call us; we may check for Heyde syndrome.
Office: (727) 943-5200
Trusted Resources
Independent, evidence-based pages we recommend for deeper reading.
- AHA — Heart Valve Problems and Disease — Plain-language overview of valve disease and its treatments.
- Mayo Clinic — Aortic Valve Stenosis — Comprehensive overview with FAQs.
- Cleveland Clinic — Aortic Stenosis — Procedure details and recovery information.
- Bicuspid Aortic Foundation — Patient-led resource for bicuspid valve disease.
- Dr. Ali — TAVR Patient Guide — Companion guide focused entirely on TAVR — read this if your team is considering valve replacement.
Sources Used to Build This Guide
- 2020 ACC/AHA Guideline for the Management of Patients with Valvular Heart Disease (Otto et al., JACC 2021) [guideline] — Primary US guideline framework for AS severity grading, intervention triggers, and TAVR vs SAVR selection.
- 2021 ESC/EACTS Guidelines for the Management of Valvular Heart Disease (Vahanian et al., Eur Heart J 2022) [guideline] — European guideline used to triangulate severity definitions and timing of intervention.
- RECOVERY Trial — Early Surgery vs Conservative Care in Asymptomatic Severe AS (Kang et al., NEJM 2020; PMID 31733181) [clinical_trial] — Underpins the guide's discussion of early intervention for asymptomatic very severe AS.
- AVATAR Trial — Aortic Valve replAcemenT versus conservative treatment in Asymptomatic seveRe AS (Banovic et al., Circulation 2022; PMID 34882436) [clinical_trial] — Provides additional evidence for early SAVR in asymptomatic severe AS with normal LVEF and exercise tolerance.
- PARTNER 3 — TAVR vs SAVR in Low-Risk Patients (Mack et al., NEJM 2019; PMID 30883058) [clinical_trial] — Cited in the AS treatment-options section as the key low-risk TAVR data; full TAVR detail lives in the TAVR guide.
- Evolut Low Risk Trial — Self-Expanding TAVR vs SAVR (Popma et al., NEJM 2019; PMID 30883053) [clinical_trial] — Companion low-risk TAVR data alongside PARTNER 3; informs the AS-to-treatment decision pathway.
- Otto CM, Prendergast B. Aortic-Valve Stenosis - From Patients at Risk to Severe Valve Obstruction (NEJM 2014; PMID 25271385) [review] — Authoritative review used to write the pathophysiology and progression sections.
- Rosenhek et al. Predictors of Outcome in Severe Asymptomatic Aortic Stenosis (NEJM 2000; PMID 10944552) [original_research] — Foundational data on the natural history and progression rate of asymptomatic severe AS.
- Lindman BR et al. Calcific Aortic Stenosis (Nat Rev Dis Primers 2016; PMID 27188578) [review] — Used for the causes/pathophysiology section, including bicuspid valve and rheumatic etiologies.
- American Heart Association — Heart Valve Problems [patient_education] — Recommended take-home reading on valve disease in plain language.
- Mayo Clinic — Aortic Valve Stenosis [patient_education] — Cited in the 'Learn More' section for diagnosis and treatment overview.
