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. 2022 Nov 6;19(21):14563.
doi: 10.3390/ijerph192114563.

Aneurysm Sac Pressure during Branched Endovascular Aneurysm Repair versus Multilayer Flow Modulator Implantation in Patients with Thoracoabdominal Aortic Aneurysm

Maciej Antkiewicz  1 , Wiktor Kuliczkowski  2 , Marcin Protasiewicz  2 , Tomasz Zubilewicz  3 , Piotr Terlecki  3 , Magdalena Kobielarz  4 , Dariusz Janczak  1
Affiliations

Aneurysm Sac Pressure during Branched Endovascular Aneurysm Repair versus Multilayer Flow Modulator Implantation in Patients with Thoracoabdominal Aortic Aneurysm

Maciej Antkiewicz et al. Int J Environ Res Public Health. .

Abstract

Open thoracoabdominal repair is the gold standard in the TAAA treatment. However, there are endovascular techniques, that sometimes may be an alternative, such as branched endovascular aneurysm repair (BEVAR) or implantation of the multilayer flow modulator (MFM). In this study, we aimed to assess differences in the aneurysm sac pressure (ASP) between patients undergoing BEVAR and MFM implantation. The study included 22 patients with TAAA (14 patients underwent BEVAR, while eight MFM implantation). The pressure sensor wire was placed inside the aneurysm. A measurement of ASP and aortic pressure (AP) was performed during the procedure. The systolic pressure index (SPI), diastolic pressure index (DPI), and pulse pressure index (PPI) were calculated as a quotient of the ASP and AP values. After the procedure, SPI and PPI were lower in the BEVAR group than in the MFM group. During a procedure, a drop in SPI and PPI was noted in patients undergoing BEVAR, while no changes were revealed in the MFM group. This indicates that BEVAR, but not MFM, is associated with a reduction in systolic and pulse pressure in the aneurysm sac in patients with TAAA.

Keywords: aneurysm sac pressure; endovascular aneurysm repair; multilayer flow modulator; thoracoabdominal aneurysm.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Multilayer Flow Modulator (Cardiatis SA, Isnes, Belgium).
Figure 2
Figure 2
Systolic pressure index (SPI), diastolic pressure index (DPI), and pulse pressure index (PPI) at baseline and after branched endovascular aneurysm repair.
Figure 3
Figure 3
Systolic pressure index (SPI), diastolic pressure index (DPI), and pulse pressure index (PPI) at baseline and after implantation of the multilayer flow modulator. The mean SPI, DPI, and PPI values after the procedure were as follows: 0.60 ± 0.13, 0.95 ± 0.16, and 0.33 ± 0.17, respectively, for the BEVAR group, and 1.00 ± 0.03, 0.98 ± 0.12, and 1.04 ± 0.04, respectively, for the MFM group.
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