Effects of Fenestration in Fontan Circulation
Author Information
Author(s): Naohiro Horio, Shuji Shimizu, Yasuhiro Kotani, Yoshinori Miyahara, Shingo Kasahara
Primary Institution: Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
Hypothesis
What are the hemodynamic effects of fenestration in Fontan circulation?
Conclusion
Fenestration can significantly reduce central venous pressure and stressed blood volume in patients with elevated pulmonary vascular resistance.
Supporting Evidence
- Fenestration significantly reduced central venous pressure from 18.0 to 16.1 mmHg.
- Stressed blood volume decreased from 610 to 555 ml with fenestration.
- Fenestration is most effective in patients with elevated pulmonary vascular resistance.
Takeaway
Fenestration is like making a small hole in a pipe to help blood flow better in certain heart surgeries, but it can also make oxygen levels lower.
Methodology
The study used a computational model to simulate the hemodynamics of fenestrated Fontan circulation.
Limitations
The parameters were not patient-specific, and the study did not account for valvular regurgitation or intrapulmonary shunts.
Participant Demographics
Mean age at surgery was 33.5 months; 5 males and 1 female.
Digital Object Identifier (DOI)
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