The applications and potential limitations of right ventricular volumes as surrogate marker in tetralogy of fallot

Cardiac magnetic resonance imaging derived right ventricular (RV) volumes are often necessary for optimal timing of pulmonary valve replacement in patients with tetralogy of Fallot (TOF). This practice is based on previous studies that reported preoperative RV volumetric thresholds that predicted po...

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Main Authors: Alexander C. Egbe, Keerthana Banala, Rahul Vojjini, Karim Osman, Arslan Afzal, Vaibhav Jain, Sahith Thotamgari, Naser M. Ammash
Format: Article
Language:English
Published: Elsevier 2020-02-01
Series:International Journal of Cardiology: Heart & Vasculature
Online Access:http://www.sciencedirect.com/science/article/pii/S2352906719301939
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author Alexander C. Egbe
Keerthana Banala
Rahul Vojjini
Karim Osman
Arslan Afzal
Vaibhav Jain
Sahith Thotamgari
Naser M. Ammash
author_facet Alexander C. Egbe
Keerthana Banala
Rahul Vojjini
Karim Osman
Arslan Afzal
Vaibhav Jain
Sahith Thotamgari
Naser M. Ammash
author_sort Alexander C. Egbe
collection DOAJ
description Cardiac magnetic resonance imaging derived right ventricular (RV) volumes are often necessary for optimal timing of pulmonary valve replacement in patients with tetralogy of Fallot (TOF). This practice is based on previous studies that reported preoperative RV volumetric thresholds that predicted postoperative RV remodeling. As a result, pulmonary valve replacements are being performed even in asymptomatic patients based on RV volumetric thresholds that predict complete postoperative RVOT remodeling. Hence, RV volumes are now being used as surrogate markers/endpoints for future cardiovascular outcomes. Unfortunately, there are no studies showing survival benefit for performing pulmonary valve replacement at smaller RV volumes. This review underscores some of the limitations of using RV volumes as surrogate markers for clinical outcomes, and also highlights knowledge gaps about the pathophysiologic mechanism of cardiovascular death in the TOF population. Keywords: Right ventricular volumes, Tetralogy of fallot, Cardiovascular mortality
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spelling doaj.art-a1f61cd28e8641b88825a689d7eecbbd2022-12-21T17:50:09ZengElsevierInternational Journal of Cardiology: Heart & Vasculature2352-90672020-02-0126The applications and potential limitations of right ventricular volumes as surrogate marker in tetralogy of fallotAlexander C. Egbe0Keerthana Banala1Rahul Vojjini2Karim Osman3Arslan Afzal4Vaibhav Jain5Sahith Thotamgari6Naser M. Ammash7Corresponding author at: Mayo Clinic and Foundation, 200 First Street SW, Rochester, MN 55905, United States.; Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, United StatesDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, United StatesDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, United StatesDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, United StatesDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, United StatesDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, United StatesDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, United StatesDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, MN 55905, United StatesCardiac magnetic resonance imaging derived right ventricular (RV) volumes are often necessary for optimal timing of pulmonary valve replacement in patients with tetralogy of Fallot (TOF). This practice is based on previous studies that reported preoperative RV volumetric thresholds that predicted postoperative RV remodeling. As a result, pulmonary valve replacements are being performed even in asymptomatic patients based on RV volumetric thresholds that predict complete postoperative RVOT remodeling. Hence, RV volumes are now being used as surrogate markers/endpoints for future cardiovascular outcomes. Unfortunately, there are no studies showing survival benefit for performing pulmonary valve replacement at smaller RV volumes. This review underscores some of the limitations of using RV volumes as surrogate markers for clinical outcomes, and also highlights knowledge gaps about the pathophysiologic mechanism of cardiovascular death in the TOF population. Keywords: Right ventricular volumes, Tetralogy of fallot, Cardiovascular mortalityhttp://www.sciencedirect.com/science/article/pii/S2352906719301939
spellingShingle Alexander C. Egbe
Keerthana Banala
Rahul Vojjini
Karim Osman
Arslan Afzal
Vaibhav Jain
Sahith Thotamgari
Naser M. Ammash
The applications and potential limitations of right ventricular volumes as surrogate marker in tetralogy of fallot
International Journal of Cardiology: Heart & Vasculature
title The applications and potential limitations of right ventricular volumes as surrogate marker in tetralogy of fallot
title_full The applications and potential limitations of right ventricular volumes as surrogate marker in tetralogy of fallot
title_fullStr The applications and potential limitations of right ventricular volumes as surrogate marker in tetralogy of fallot
title_full_unstemmed The applications and potential limitations of right ventricular volumes as surrogate marker in tetralogy of fallot
title_short The applications and potential limitations of right ventricular volumes as surrogate marker in tetralogy of fallot
title_sort applications and potential limitations of right ventricular volumes as surrogate marker in tetralogy of fallot
url http://www.sciencedirect.com/science/article/pii/S2352906719301939
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