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Updated: Aug 10, 2025

Hemodynamic Precision in the Neonatal Intensive Care Unit using Targeted Neonatal Echocardiography
Published on: January 27, 2023
A natural systemic to pulmonary artery shunt
Santhosh Regini Benjamin1, Roy Thankachen1, Deepak Narayanan1
1The Department of Cardiothoracic Surgery, The Christian Medical College, CMC Hospital, Vellore, 632004 Tamil Nadu India.
Abstract:
Isolation of the left subclavian artery is a rare anomaly associated with right aortic arch. We report a case in which this subclavian artery was supplying the pulmonary circulation in a patient with tetralogy of Fallot (TOF) which effectively acted as a natural systemic to pulmonary artery shunt. The patient had good room air saturation and no features of vertebrobasilar insufficiency or left upper limb ischemia. She underwent a total correction of TOF and ligation of the aberrant left subclavian artery.
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