Platypnea-orthodeoxia Syndrome Due to Right Ventricular Inflow Tract Obstruction Caused by an Elongated Ascending Aorta: Usefulness of Three-dimensional Cardiac Computed Tomography Imaging in the Sitting Position

An 84-year-old woman presented with dyspnea in the sitting position. Platypnea-orthodeoxia syndrome (POS) was suspected based on arterial desaturation when her posture changed from the supine to the sitting position. Transesophageal echocardiography showed right-to-left shunting enhancement through...

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Autores principales: Hasegawa, Yuki, Izumi, Daisuke, Ikami, Yasuhiro, Okubo, Takeshi, Hoyano, Makoto, Ozaki, Kazuyuki, Sato, Noriaki, Mishima, Takehito, Inomata, Takayuki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Japanese Society of Internal Medicine 2022
Materias:
Case Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9424084/
https://www.ncbi.nlm.nih.gov/pubmed/35022356
http://dx.doi.org/10.2169/internalmedicine.8868-21
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author Hasegawa, Yuki
Izumi, Daisuke
Ikami, Yasuhiro
Okubo, Takeshi
Hoyano, Makoto
Ozaki, Kazuyuki
Sato, Noriaki
Mishima, Takehito
Inomata, Takayuki
author_facet Hasegawa, Yuki
Izumi, Daisuke
Ikami, Yasuhiro
Okubo, Takeshi
Hoyano, Makoto
Ozaki, Kazuyuki
Sato, Noriaki
Mishima, Takehito
Inomata, Takayuki
author_sort Hasegawa, Yuki
collection PubMed
description An 84-year-old woman presented with dyspnea in the sitting position. Platypnea-orthodeoxia syndrome (POS) was suspected based on arterial desaturation when her posture changed from the supine to the sitting position. Transesophageal echocardiography showed right-to-left shunting enhancement through a patent foramen ovale (PFO) in the sitting position. Three-dimensional (3D) cardiac CT in the sitting position revealed that the elongated ascending aorta compressed the right ventricular inflow tract, resulting in restricted blood flow to the right ventricle and increased right-to-left shunting. This case highlights the role of 3D-CT in the sitting position in the management of POS.
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spelling pubmed-94240842022-09-15 Platypnea-orthodeoxia Syndrome Due to Right Ventricular Inflow Tract Obstruction Caused by an Elongated Ascending Aorta: Usefulness of Three-dimensional Cardiac Computed Tomography Imaging in the Sitting Position Hasegawa, Yuki Izumi, Daisuke Ikami, Yasuhiro Okubo, Takeshi Hoyano, Makoto Ozaki, Kazuyuki Sato, Noriaki Mishima, Takehito Inomata, Takayuki Intern Med Case Report An 84-year-old woman presented with dyspnea in the sitting position. Platypnea-orthodeoxia syndrome (POS) was suspected based on arterial desaturation when her posture changed from the supine to the sitting position. Transesophageal echocardiography showed right-to-left shunting enhancement through a patent foramen ovale (PFO) in the sitting position. Three-dimensional (3D) cardiac CT in the sitting position revealed that the elongated ascending aorta compressed the right ventricular inflow tract, resulting in restricted blood flow to the right ventricle and increased right-to-left shunting. This case highlights the role of 3D-CT in the sitting position in the management of POS. The Japanese Society of Internal Medicine 2022-01-13 2022-08-01 /pmc/articles/PMC9424084/ /pubmed/35022356 http://dx.doi.org/10.2169/internalmedicine.8868-21 Text en Copyright © 2022 by The Japanese Society of Internal Medicine https://creativecommons.org/licenses/by-nc-nd/4.0/The Internal Medicine is an Open Access journal distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. To view the details of this license, please visit (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Case Report
Hasegawa, Yuki
Izumi, Daisuke
Ikami, Yasuhiro
Okubo, Takeshi
Hoyano, Makoto
Ozaki, Kazuyuki
Sato, Noriaki
Mishima, Takehito
Inomata, Takayuki
Platypnea-orthodeoxia Syndrome Due to Right Ventricular Inflow Tract Obstruction Caused by an Elongated Ascending Aorta: Usefulness of Three-dimensional Cardiac Computed Tomography Imaging in the Sitting Position
title Platypnea-orthodeoxia Syndrome Due to Right Ventricular Inflow Tract Obstruction Caused by an Elongated Ascending Aorta: Usefulness of Three-dimensional Cardiac Computed Tomography Imaging in the Sitting Position
title_full Platypnea-orthodeoxia Syndrome Due to Right Ventricular Inflow Tract Obstruction Caused by an Elongated Ascending Aorta: Usefulness of Three-dimensional Cardiac Computed Tomography Imaging in the Sitting Position
title_fullStr Platypnea-orthodeoxia Syndrome Due to Right Ventricular Inflow Tract Obstruction Caused by an Elongated Ascending Aorta: Usefulness of Three-dimensional Cardiac Computed Tomography Imaging in the Sitting Position
title_full_unstemmed Platypnea-orthodeoxia Syndrome Due to Right Ventricular Inflow Tract Obstruction Caused by an Elongated Ascending Aorta: Usefulness of Three-dimensional Cardiac Computed Tomography Imaging in the Sitting Position
title_short Platypnea-orthodeoxia Syndrome Due to Right Ventricular Inflow Tract Obstruction Caused by an Elongated Ascending Aorta: Usefulness of Three-dimensional Cardiac Computed Tomography Imaging in the Sitting Position
title_sort platypnea-orthodeoxia syndrome due to right ventricular inflow tract obstruction caused by an elongated ascending aorta: usefulness of three-dimensional cardiac computed tomography imaging in the sitting position
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9424084/
https://www.ncbi.nlm.nih.gov/pubmed/35022356
http://dx.doi.org/10.2169/internalmedicine.8868-21
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