Pulmonary-to-systemic shunt

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Pulmonary-to-systemic shunt
Specialty Vascular 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.[ dead link ]
  2. ↑ Kim, Grace J.; Chinnock, Richard E. (2008). "Postsurgical Cardiac Conditions and Transplantation". Pediatric Emergency Medicine. pp. 514–521. doi:10.1016/B978-141600087-7.50069-6. ISBN   978-1-4160-0087-7.
  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 (18 January 2023). "Detecting and Quantifying Residual Intracardiac Shunts Using Oximetric Step-Up Methods: A Prospective Observational Study". Cureus. 15 (1) e33942. doi: 10.7759/cureus.33942 . PMC   9858716 . PMID   36694858.
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