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Impact of bridging with left ventricular assist device on right ventricular function following heart transplantation

Ingvarsson, Annika LU orcid ; Gjesdal, Grunde LU ; Borgenvik, Saeideh ; Werther Evaldsson, Anna LU orcid ; Waktare, Johan ; Braun, Oscar LU ; Smith, Gustav J LU ; Roijer, Anders LU ; Rådegran, Göran LU and Meurling, Carl LU (2022) In ESC Heart Failure 9(3). p.1864-1874
Abstract

AIMS: Patients awaiting orthotopic heart transplantation (OHT) can be bridged utilizing a left ventricular assist device (LVAD) that reduces left ventricular filling pressures, decreases pulmonary artery wedge pressure, and maintains adequate cardiac output. This study set out to examine the poorly investigated area of if and how pre-treatment with LVAD impacts right ventricular (RV) function following OHT.

METHODS AND RESULTS: We prospectively evaluated 59 (LVAD n = 20) consecutive OHT patients. Transthoracic echocardiography (TTE) was performed in conjunction with right heart catheterization (RHC) at 1, 6, and 12 months after OHT. RV function TTE-parameters included tricuspid annular plane systolic excursion (TAPSE), systolic... (More)

AIMS: Patients awaiting orthotopic heart transplantation (OHT) can be bridged utilizing a left ventricular assist device (LVAD) that reduces left ventricular filling pressures, decreases pulmonary artery wedge pressure, and maintains adequate cardiac output. This study set out to examine the poorly investigated area of if and how pre-treatment with LVAD impacts right ventricular (RV) function following OHT.

METHODS AND RESULTS: We prospectively evaluated 59 (LVAD n = 20) consecutive OHT patients. Transthoracic echocardiography (TTE) was performed in conjunction with right heart catheterization (RHC) at 1, 6, and 12 months after OHT. RV function TTE-parameters included tricuspid annular plane systolic excursion (TAPSE), systolic tissue velocity (S'), fractional area change, two-dimensional RV global longitudinal strain and longitudinal strain from the RV lateral wall (RVfree). At 1 month after OHT, the LVAD group had significantly better longitudinal RV function than the non-LVAD group: TAPSE (15 ± 3 mm vs. 12 ± 2 mm, P < 0.001), RV global longitudinal strain (-19.8 ± 2.1% vs. -14.3 ± 2.8%, P < 0.001), and RVfree (-19.8 ± 2.3% vs. -14.1 ± 2.9%, P < 0.001). At this time point, pulmonary vascular resistance (PVR) was also lower [1.2 ± 0.4 Wood Units (WU) vs. 1.6 ± 0.6 WU, P < 0.05] in the LVAD group compared with the non-LVAD group. At 6 and 12 months, no difference was detected in any of the TTE and RHC measured parameters between the two groups. Between 1 and 12 months, all parameters of RV function improved significantly in the non-LVAD group but remained unaltered in the LVAD group.

CONCLUSIONS: Our results indicate that pre-treatment with LVAD decreases PVR and is associated with significantly better RV function early following OHT. During the first year following transplantation, RV function progressively improved in the non-LVAD group such that at 6 and 12 months, no difference in RV function was detected between the groups.

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; ; ; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
ESC Heart Failure
volume
9
issue
3
pages
1864 - 1874
publisher
John Wiley & Sons Inc.
external identifiers
  • pmid:35322594
  • scopus:85126838424
ISSN
2055-5822
DOI
10.1002/ehf2.13890
language
English
LU publication?
yes
additional info
© 2022 The Authors. ESC Heart Failure published by John Wiley & Sons Ltd on behalf of European Society of Cardiology.
id
100f6050-40ac-4384-b15b-75a9a6951c59
date added to LUP
2022-04-01 06:42:17
date last changed
2024-07-11 14:26:50
@article{100f6050-40ac-4384-b15b-75a9a6951c59,
  abstract     = {{<p>AIMS: Patients awaiting orthotopic heart transplantation (OHT) can be bridged utilizing a left ventricular assist device (LVAD) that reduces left ventricular filling pressures, decreases pulmonary artery wedge pressure, and maintains adequate cardiac output. This study set out to examine the poorly investigated area of if and how pre-treatment with LVAD impacts right ventricular (RV) function following OHT.</p><p>METHODS AND RESULTS: We prospectively evaluated 59 (LVAD n = 20) consecutive OHT patients. Transthoracic echocardiography (TTE) was performed in conjunction with right heart catheterization (RHC) at 1, 6, and 12 months after OHT. RV function TTE-parameters included tricuspid annular plane systolic excursion (TAPSE), systolic tissue velocity (S'), fractional area change, two-dimensional RV global longitudinal strain and longitudinal strain from the RV lateral wall (RVfree). At 1 month after OHT, the LVAD group had significantly better longitudinal RV function than the non-LVAD group: TAPSE (15 ± 3 mm vs. 12 ± 2 mm, P &lt; 0.001), RV global longitudinal strain (-19.8 ± 2.1% vs. -14.3 ± 2.8%, P &lt; 0.001), and RVfree (-19.8 ± 2.3% vs. -14.1 ± 2.9%, P &lt; 0.001). At this time point, pulmonary vascular resistance (PVR) was also lower [1.2 ± 0.4 Wood Units (WU) vs. 1.6 ± 0.6 WU, P &lt; 0.05] in the LVAD group compared with the non-LVAD group. At 6 and 12 months, no difference was detected in any of the TTE and RHC measured parameters between the two groups. Between 1 and 12 months, all parameters of RV function improved significantly in the non-LVAD group but remained unaltered in the LVAD group.</p><p>CONCLUSIONS: Our results indicate that pre-treatment with LVAD decreases PVR and is associated with significantly better RV function early following OHT. During the first year following transplantation, RV function progressively improved in the non-LVAD group such that at 6 and 12 months, no difference in RV function was detected between the groups.</p>}},
  author       = {{Ingvarsson, Annika and Gjesdal, Grunde and Borgenvik, Saeideh and Werther Evaldsson, Anna and Waktare, Johan and Braun, Oscar and Smith, Gustav J and Roijer, Anders and Rådegran, Göran and Meurling, Carl}},
  issn         = {{2055-5822}},
  language     = {{eng}},
  number       = {{3}},
  pages        = {{1864--1874}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{ESC Heart Failure}},
  title        = {{Impact of bridging with left ventricular assist device on right ventricular function following heart transplantation}},
  url          = {{http://dx.doi.org/10.1002/ehf2.13890}},
  doi          = {{10.1002/ehf2.13890}},
  volume       = {{9}},
  year         = {{2022}},
}