Normal Values for Right Ventricular Systolic Pressure (RVSP)

The normal right ventricular systolic pressure (RVSP) is less than 35 mm Hg, with an upper limit of normal considered to be 30-35 mm Hg in adults, as recommended by the American Heart Association 1, 2, 3
In healthy individuals, the average RVSP measured by right heart catheterization is approximately 21 ± 4 mm Hg, with an upper limit around 30 mm Hg, according to the European Respiratory Society 2

RVSP Measurement and Interpretation

RVSP is calculated using the modified Bernoulli equation: RVSP = 4v² + RAP, where v is the peak velocity of the tricuspid regurgitation jet in meters per second, and RAP is the estimated right atrial pressure, as stated by the American College of Cardiology 1, 4
RAP can be estimated based on inferior vena cava (IVC) diameter and respiratory variation, with the following guidelines:
- IVC diameter < 2.1 cm with > 50% collapse during sniff: RAP ≈ 3 mmHg (range 0-5 mmHg)
- IVC diameter > 2.1 cm with < 50% collapse: RAP ≈ 15 mmHg (range 10-20 mmHg)
- Intermediate cases: RAP ≈ 8 mmHg (range 5-10 mmHg), as recommended by the European Respiratory Society 5
The estimated right atrial pressure (RAP) can be used to calculate RVSP, with a strength of evidence level of moderate, according to the European Respiratory Society 5

RVSP < 35 mm Hg is considered normal, as stated by the American Heart Association 1
RVSP 35-40 mm Hg is considered borderline elevated, according to the European Respiratory Society 2, 3

Elevated RVSP > 30 mm Hg is associated with increased mortality risk, even below the traditional threshold of 40 mm Hg used to suggest possible pulmonary hypertension, as reported by the European Respiratory Society 2, 3
RVSP measurements may be unreliable in patients with severe tricuspid regurgitation (can underestimate true pressure), as stated by the European Respiratory Society 5
RVSP measurements may overestimate pressure in patients with tubular stenosis or stenoses in series, according to the European Society of Cardiology 6
Tricuspid regurgitation jets are analyzable in 39-86% of patients; absence of a measurable jet does not rule out elevated pulmonary pressure, as reported by the American College of Chest Physicians 4, 2

In patients with right ventricular outflow tract obstruction, intervention should be considered when the Doppler peak gradient is >64 mm Hg (peak velocity >4 m/s) regardless of symptoms, as recommended by the European Society of Cardiology 6
In asymptomatic patients with valvular pulmonary stenosis where surgical valve replacement is the only option, surgery should be performed when systolic RV pressure >80 mm Hg (TR velocity >4.3 m/s), according to the European Society of Cardiology 6

In healthy older adults, the mean RVSP measured by right‑heart catheterization is approximately 21 ± 4 mm Hg, with an upper limit near 30 mm Hg, indicating that an RVSP ≤ 30 mm Hg is considered normal and optimal for a 65‑year‑old individual; values up to 35 mm Hg may be observed in healthy elderly persons. [7][8]

Although RVSP rises modestly with age due to increased pulmonary vascular stiffness, values > 30 mm Hg should not be dismissed as “normal aging” because they independently predict higher mortality after adjustment for age. [8][9]10
Even mildly elevated RVSP in the range of 30–32 mm Hg is associated with a 28.9 % five‑year mortality rate and a 10.1 % one‑year mortality rate in older adults. [9][10]

An RVSP ≤ 30 mm Hg in an asymptomatic older adult falls within the optimal healthy range and does not require specific treatment, pulmonary‑hypertension work‑up, or routine follow‑up echocardiography. [7][8][9][10]

Additional assessment is warranted when an older adult presents with unexplained dyspnea, syncope, or exercise intolerance even though RVSP is ≤ 30 mm Hg. 9
Further evaluation is also indicated if other echocardiographic findings suggest pulmonary hypertension, such as right‑ventricular hypertrophy, dilation, dysfunction, a short pulmonary‑acceleration time, or notching in the right‑ventricular outflow‑tract Doppler signal. [7][9]
The absence of a measurable tricuspid‑regurgitation jet does not exclude elevated pulmonary pressures; clinical suspicion should guide the decision to pursue additional testing. [7][10]