Structural and functional characteristics of mitral paravalvular leakage identified by multimodal imaging and their implication on clinical presentation

Jah Yeon Choi, Young Joo Suh, Jiwon Seo, Kang Un Choi, Geu Ru Hong, Sak Lee, Seung Hyun Lee, Jong Won Ha, Young Jin Kim, Chi Young Shim

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Objective: Clinical presentation of patients with mitral paravalvular leakage (PVL) varies from asymptomatic to heart failure related with hemolytic anemia or pulmonary hypertension. We aimed to investigate the structural and functional characteristics of mitral PVL by multimodal imaging and their association with the severity of hemolysis and hemodynamic significance. Methods: A total of 74 patients with mitral PVL who underwent both cardiac computed tomography (CT) and echocardiography from March 2010 to December 2017 was investigated. Location and size of PVL, degree of left atrial (LA) calcification as measured by CT, and hemodynamic variables as measured by echocardiography were comprehensively analyzed. To investigate the degree of hemolysis and pulmonary hypertension, level of lactate dehydrogenase (LDH) and Doppler estimated systolic pulmonary artery pressure (SPAP) were used respectively. Results: Level of LDH was not related to PVL perimeter and was variable, especially in patients with a small PVL. However, it was positively correlated with mean mitral regurgitation velocity. Additionally, SPAP was significantly correlated with PVL perimeter and LA calcium score. In multivariable analysis, mean mitral regurgitation velocity was significantly correlated with levels of LDH (β = 0.345; p = 0.016), and PVL perimeter and LA calcium score were independently associated with SPAP (β = 0.249; p = 0.036 and β = 0.467; p < 0.001, respectively). Conclusions: Characteristics of mitral PVL and adjacent structures are associated with the severity of hemolysis and pulmonary hypertension. Evaluating the structural and functional characteristics of mitral PVL by complementary multimodal imaging would be important for understanding the clinical presentation and deciding optimal treatments for individual patients.

Original languageEnglish
Article number222
Pages (from-to)1-14
Number of pages14
JournalJournal of Clinical Medicine
Volume10
Issue number2
DOIs
Publication statusPublished - 2021 Jan 2

Bibliographical note

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

All Science Journal Classification (ASJC) codes

  • General Medicine

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