Detection of right to left shunt by transesophageal echocardiography in a patient with postoperative hypoxemia

Journal of the Formosan Medical Association = Taiwan Yi Zhi
Yu-Ling YehShen-Kou Tsai

Abstract

Intracardiac right to left shunt through a patent foramen ovale (PFO) may result in the development of hypoxemia after cardiac surgery. Cardiac tamponade and mechanical ventilation with high positive endexpiratory pressure are the most common factors responsible for enhancing intracardiac right to left shunt through a PFO. We report an 83-year-old woman with Stanford type A dissecting aneurysm who developed hypoxemia and paradoxical air embolism after reconstruction of ascending aorta and Bental's procedure. Transesophageal echocardiography (TEE) revealed right to left shunting via a PFO. Surgical closure of the PFO was done without delay. This case illustrates the role of TEE in prompt diagnosis of intracardiac right to left shunting through a PFO causing postoperative hypoxemia after cardiac surgery.

References

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Citations

Nov 27, 2008·World Journal of Surgical Oncology·Andrew C PearsonMark Bloomston
Jul 23, 2016·Journal of Clinical Ultrasound : JCU·Silvia MongodiFrancesco Mojoli
Apr 11, 2018·Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft·J L LauermannC E Uhlig
Oct 5, 2010·Journal of Korean Medical Science·Seon-Sook HanBong-Ki Lee

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