23 October 2025
: Case report 
Isolated Pulmonary Regurgitation without Right Heart Remodeling or Pulmonary Hypertension
Rare disease
Robert Doyle ABCDEF 1*, Mark Wilkinson ACD 2DOI: 10.12659/AJCR.949786
Am J Case Rep 2025; 26:e949786
Figure 5 Spectral Doppler waveform of tricuspid regurgitation demonstrating trace TR (TR Vmax 2.11 m/s, TR max PG 17.89 mmHg, RAP 5 mmHg) with normal right ventricular systolic pressure (RVSP 22.89 mmHg).