Right ventricular function after repair of tetralogy of Fallot: an echocardiographic and clinical evaluation

Right ventricular free-wall longitudinal strain is a sensitive marker of pulmonary regurgitation-related right ventricular dysfunction after tetralogy of Fallot repair. Pulmonary regurgitation jet width, expressed relative to the pulmonary annulus, appears to be the dominant determinant of right ventricular mechanical impairment and may complement conventional assessment during follow-up.