Tricuspid Atresia

N C Joshi
Consultant Pediatrician, Nanavati Hospital, Mumbai, India
First Created: 03/02/2001 

Tricuspid Atresia Types

  • Normally related great arteries

  • Small VSD & PS

  • Intact ventricular septum with Pulmonary atresia

  • Large VSD without pulmonary stenosis

  • D-Transposition of great arteries

  • VSD without pulmonary stenosis

  • VSD & PS

  • VSD & PA

  • L-Transposition of great arteries


Cyanosis (severe) with cyanotic spells

Physical Examination:

  • Cyanosis with or without clubbing

  • Systolic murmur with single S2

  • Hepatomegaly with inadequate interatrial communication

Tricuspid Atresia - Investigations

  • ECG: superior QRS axis, small RV forces

  • Chest X-ray: Heart Size-normal, Pulmonary Vascularity - decreased

Tricuspid Atresia - Treatment

  • Prostaglandin E1: 0.05 mcg/kg/min. IV infusion (to keep ductus open)

  • Balloon septostomy

  • Surgical:
    • Palliation
    • Systemic-Pulmonary shunt (PS)
    • Pulmonary artery banding (large VSD)

    • Corrective - Fontan's procedure

Tricuspid Atresia Tricuspid Atresia 2001-03-02
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