Pulmonary-to-systemic shunt
Specialtyvascular medicine

A pulmonary-to-systemic shunt is a cardiac shunt which allows, or is designed to cause, blood to flow from the pulmonary circulation to the systemic circulation.[1][2] This occurs when:

  1. there is a passage between two or more of the great vessels; and,
  2. pulmonic pressure is higher than systemic pressure and/or the shunt has a one-way valvular opening.

A pulmonary-to-systemic shunt functions as follows:

  1. right-to-left in the absence of arterioventricular discordance.
  2. left-to-right if the great vessels are transposed.[3]

References

  1. ↑ "Systemic to Pulmonary Artery Shunting for Palliation: Introduction and History, Palliative Surgery and Indications for a Shunt, Types of Shunts". 2022-12-02. {{cite journal}}: Cite journal requires |journal= (help)
  2. ↑ "Systemic Pulmonary Shunt - an overview | ScienceDirect Topics". www.sciencedirect.com. Retrieved 2023-02-12.
  3. ↑ Bhende, Vishal V.; Sharma, Tanishq S.; Sharma, Ashwin S.; Kumar, Amit; Patel, Nirja P.; Majmudar, Hardil P.; Patel, Mamta R.; Patel, Kruti A.; Panesar, Gurpreet; Soni, Kunal; Dhami, Kartik B.; Pathan, Sohilkhan R.; Parmar, Dushyant M.; Nerurkar, Paresh; Bhende, Vishal V. (2023-01-18). "Detecting and Quantifying Residual Intracardiac Shunts Using Oximetric Step-Up Methods: A Prospective Observational Study". Cureus. 15 (1): e33942. doi:10.7759/cureus.33942. ISSN 2168-8184. PMC 9858716. PMID 36694858.


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