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Quantitative aortography for assessment of aortic regurgitation in the era of percutaneous aortic valve replacement

Mahmoud Abdelshafy, Patrick W Serruys*, Tsung-Ying Tsai, Pruthvi Chenniganahosahalli Revaiah, Scot Garg, Jean-Paul Aben, Carl J Schultz, Mohammad Abdelghani, Pim A L Tonino, Yosuke Miyazaki, Marcel C M Rutten, Martijn Cox, Cherif Sahyoun, Justin Teng, Hiroki Tateishi, Mohamed Abdel-Wahab, Nicolo Piazza, Michele Pighi, Rodrigo Modolo, Martijn van MourikJoanna Wykrzykowska, Robbert J de Winter, Pedro A Lemos, Fábio S de Brito, Hideyuki Kawashima, Lars Søndergaard, Liesbeth Rosseel, Rutao Wang, Chao Gao, Ling Tao, Andreas Rück, Won-Keun Kim, Niels van Royen, Christian J Terkelsen, Henrik Nissen, Matti Adam, Tanja K Rudolph, Hendrik Wienemann, Ryo Torii, Franz Josef Neuman, Simon Schoechlin, Mao Chen, Ahmed Elkoumy, Hesham Elzomor, Ignacio J Amat-Santos, Darren Mylotte, Osama Soliman, Yoshinobu Onuma

*Corresponding author for this work
3 Citations (Scopus)

Abstract

Paravalvular leak (PVL) is a shortcoming that can erode the clinical benefits of transcatheter valve replacement (TAVR) and therefore a readily applicable method (aortography) to quantitate PVL objectively and accurately in the interventional suite is appealing to all operators. The ratio between the areas of the time-density curves in the aorta and left ventricular outflow tract (LVOT-AR) defines the regurgitation fraction (RF). This technique has been validated in a mock circulation; a single injection in diastole was further tested in porcine and ovine models. In the clinical setting, LVOT-AR was compared with trans-thoracic and trans-oesophageal echocardiography and cardiac magnetic resonance imaging. LVOT-AR > 17% discriminates mild from moderate aortic regurgitation on echocardiography and confers a poor prognosis in multiple registries, and justifies balloon post-dilatation. The LVOT-AR differentiates the individual performances of many old and novel devices and is being used in ongoing randomized trials and registries.

Original languageEnglish
Article number1161779
JournalFrontiers in Cardiovascular Medicine
Volume10
ISSN2297-055X
DOIs
Publication statusPublished - 2023

Keywords

  • aortic regurgitation
  • paravalvular leak
  • quantitative aortography
  • transcatheter aortic valve implantation
  • transcatheter aortic valve replacement
  • videodensitometry

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