Letter by Murakami et al Regarding Article, “Unrestrictive Aortopulmonary Window: Extreme Presentation as Non-Eisenmenger in a 30-Year-Old Patient”
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To the Editor:
We read with great interest the article by Myers and colleagues1 that reported a case without Eisenmenger syndrome in a 30-year-old patient with aortopulmonary window. It is a thought-provoking case; however, the evaluation of her hemodynamics deserves comment.
The title of the article is “Unrestrictive Aortopulmonary Window.” However, the preoperative systolic pressure of pulmonary artery was 40% of systemic pressure. It means the defect is “restrictive,” we think. It can be one of the causes of non-Eisenmenger.
Pulmonary vascular resistance (PVR) is obtained by dividing the pulmonary driving pressure (mean pulmonary artery pressure minus mean left …