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Hypoxia due to unusual right to left shunt after arterial switch surgery


Institute of Heart and Lung Transplant and Mechanical Circulatory Support, MGM Healthcare Pvt Ltd., New No. 72, Old No.54, Nelson Manickam Road, Aminjikarai, Chennai-29, Postal Code-600 029, India

Correspondence Address:
Suresh Rao Kemundel Genny
Co-director, Institute of Heart and Lung transplant and Mechanical Circulatory Support, MGM Healthcare Pvt Ltd., New No. 72, Old No. 54, Nelson Manickam Road, Aminjikarai, Chennai-29, Postal Code-600 029
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/aca.ACA_152_19

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Year : 2021  |  Volume : 24  |  Issue : 2  |  Page : 241-243

 

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Hypoxia can occur after repair of transposition of great arteries. The most common cause of right to left shunt after arterial switch surgery is related to increased right ventricular pressures and persistent neonatal pulmonary arterial hypertension. We report a case of TGA repair causing right to left shunt with normal right ventricular pressures. Persistence of Eustachian valve with patent foramen ovale (PFO) is the unusual cause of hypoxia and desaturation. The patient was successfully managed by excision of Eustachian valve and closure of PFO.






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Institute of Heart and Lung Transplant and Mechanical Circulatory Support, MGM Healthcare Pvt Ltd., New No. 72, Old No.54, Nelson Manickam Road, Aminjikarai, Chennai-29, Postal Code-600 029, India

Correspondence Address:
Suresh Rao Kemundel Genny
Co-director, Institute of Heart and Lung transplant and Mechanical Circulatory Support, MGM Healthcare Pvt Ltd., New No. 72, Old No. 54, Nelson Manickam Road, Aminjikarai, Chennai-29, Postal Code-600 029
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/aca.ACA_152_19

Rights and Permissions

Hypoxia can occur after repair of transposition of great arteries. The most common cause of right to left shunt after arterial switch surgery is related to increased right ventricular pressures and persistent neonatal pulmonary arterial hypertension. We report a case of TGA repair causing right to left shunt with normal right ventricular pressures. Persistence of Eustachian valve with patent foramen ovale (PFO) is the unusual cause of hypoxia and desaturation. The patient was successfully managed by excision of Eustachian valve and closure of PFO.






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