<unk><unk>  may be normal (physiologic) and occasionally a murmur can be heard among thin subjects. Life-threatening cause of PR include chest trauma. The most common causes of pulmonary<unk>  are following the repair of tetralogy of Fallot and pulmonary stenosis. PR is also common among patients with pulmonary hypertension (PAH). Rheumatic heart disease is also an uncommon cause and is more commonly observed in developing countries. The primary causes of PR include an intrinsic pathology in the<unk>  valve and secondary causes include extrinsic causes. The causes of<unk><unk>  may also be reckoned on the basis of the organ systems involved.
Pulmonic regurgitation causes
Tricuspid stenosis causes
Tricuspid regurgitation causes
Pulmonary valve stenosis causes
Left atrial enlargement causes
Ventricular septal defect causes
Mitral regurgitation causes
Pericardial effusion causes