Evaluation and Management of Valvular Heart Disease
All patients with valvular heart disease (VHD) require initial evaluation with history, physical examination, ECG, chest X-ray, and transthoracic echocardiography (TTE), followed by staging (A-D) based on symptoms, valve anatomy, severity of dysfunction, and ventricular/pulmonary response 1.
Initial Diagnostic Approach
Correlate clinical findings with TTE results immediately. If discordance exists between physical examination and TTE, escalate to advanced imaging: cardiac CT, cardiac MRI, stress testing, transesophageal echocardiography (TEE), or cardiac catheterization 1.
Key Physical Examination Findings to Identify:
- Aortic stenosis: Crescendo-decrescendo systolic murmur, delayed carotid upstroke, diminished S2
- Mitral regurgitation: Holosystolic murmur radiating to axilla, displaced/hyperdynamic apex
- Tricuspid regurgitation: Holosystolic murmur at left sternal border, prominent v-waves in jugular venous pulse, hepatomegaly
- Aortic regurgitation: Early diastolic decrescendo murmur, wide pulse pressure, bounding pulses
Disease Staging System
Stage patients using the A-B-C-D framework 1:
- Stage A: At risk (bicuspid valve, rheumatic heart disease history)
- Stage B: Progressive (mild-moderate valve dysfunction, asymptomatic)
- Stage C: Asymptomatic severe VHD
- Stage D: Symptomatic severe VHD
Multidisciplinary Heart Valve Team Evaluation
Every patient with severe VHD being considered for intervention must be evaluated by a Multidisciplinary Heart Valve Team (MDT) at a Primary or Comprehensive Heart Valve Center (Class I recommendation) 2, 1. This is non-negotiable for optimal outcomes.
Consultation with or referral to a Heart Valve Center is reasonable (Class IIa) for 2:
- Asymptomatic patients with severe VHD
- Patients who may benefit from valve repair versus replacement
- Patients with multiple comorbidities considering intervention
The MDT includes interventional cardiologists, cardiac surgeons, imaging specialists, heart failure specialists, and anesthesiologists who present all treatment options in balanced fashion using shared decision-making 2.
Post-Intervention Management
Valve intervention does not eliminate valve disease—it replaces native valve disease with palliated valve disease 2. All patients require lifelong surveillance.
Mandatory Post-Intervention Imaging Schedule
Baseline TTE is required 1-3 months post-procedure for all patients 2. Subsequent imaging frequency depends on valve type 2:
- Mechanical valve (surgical): Baseline only, then as clinically indicated
- Bioprosthetic valve (surgical): Baseline, at 5 years, at 10 years, then annually (more frequent if risk factors for early degeneration: younger age, renal failure, diabetes)
- Bioprosthetic valve (transcatheter): Baseline, then annually
- Mitral valve repair (surgical): Baseline, at 1 year, then every 2-3 years
- Mitral valve repair (transcatheter): Baseline, then annually
- Bicuspid aortic valve with AVR: Continue monitoring aortic size if diameter ≥4.0 cm at time of AVR
Annual clinical follow-up is mandatory for all patients after valve intervention 2. Repeat imaging at shorter intervals for new symptoms, changing physical examination, pregnancy, or monitoring residual cardiac dysfunction.
Anticoagulation Management
For VHD patients with atrial fibrillation 1:
- Rheumatic mitral stenosis OR mechanical prosthesis: Vitamin K antagonist (VKA) mandatory
- All other VHD with atrial fibrillation: Choose VKA or non-vitamin K antagonist oral anticoagulant (NOAC) based on CHA₂DS₂-VASc score through shared decision-making
Common Procedural Complications to Monitor
Early post-surgical complications 2:
- Atrial fibrillation (most common, up to one-third of patients within 3 months)
- Heart block requiring permanent pacing (especially after AVR)
- Stroke
- Vascular/bleeding complications
- Pericarditis
- Heart failure
- Renal dysfunction
- Infection
Transcatheter intervention complications 2:
- Permanent pacing requirement
- Paravalvular leak
- Stroke
- Vascular complications
- Residual valve dysfunction
Critical Pitfalls to Avoid
Never rely on ejection fraction alone—it misses early myocardial injury. Use LV global longitudinal strain, RV strain with RV-PA coupling, and LA reservoir strain for earlier detection of ventricular dysfunction 3.
Do not delay referral for asymptomatic severe VHD—irreversible ventricular remodeling occurs before symptoms develop 2, 1.
Avoid treating VHD outside specialized centers when intervention is considered—institutional volume directly correlates with mortality for SAVR, TAVI, and mitral valve repair 2.
Do not assume bioprosthetic valve dysfunction is always degeneration—valve thrombosis is a distinct entity requiring different management 1.