EDITORIAL
The opinions expressed in this article are not necessarily those of the Editors of EuroIntervention or
of the European Association of Percutaneous Cardiovascular Interventions.
EuroIntervention 2020;15:
e
1305-
e
1306 published online
e
-edition February 2020 DOI: 10.4244/EIJV15I15A237
e
1305
© Europa Digital & Publishing 2020. All rights reserved.
*Corresponding author: Service de Chirurgie Cardio-Vasculaire, Hôpital Cardiologique, CHRU de Lille, 2 Avenue Oscar
Lambret, 59037 Lille, France. E-mail: thomas.modine@chru-lille.fr
Do we need alternative access in TAVR anymore?
Walid Ben Ali
1,2
, MD, PhD; Pavel Overtchouk
1
, MD; Thomas Modine
1
*, MD, PhD
1. Department of Cardiology and Cardiovascular Surgery, Heart Valve Center, Institut Cœur Poumon CHU de Lille, Lille,
France; 2. Department of Cardiac Surgery, Montreal Heart Institute, Montreal, QC, Canada
Transcatheter aortic valve replacement (TAVR) has expanded
widely in recent years. The femoral access constitutes the gold
standard and the first-line access for TAVR procedures
1,2
, allow-
ing totally percutaneous procedures. Despite several iterations
in device profiles and the improvement of TAVR techniques, 10
to 15% of patients are deemed ineligible for femoral access due
to unfavourable femoral or aortic anatomy
3
. While the European
guidelines
4
recommend the surgical option in intermediate-risk
patients if the femoral access is not feasible, non-femoral periph-
eral (nFP) accesses have emerged as alternatives to the femoral
access, achieving comparable results in high-volume centres
5,6
with a trend towards more minimalist and less invasive proce-
dures
7
. More recently, in a propensity-matched study, the French
TAVR group
8
reported that nFP TAVR was associated with similar
outcomes compared to transfemoral TAVR except for a twofold
lower rate of major vascular complications and unplanned repairs,
regardless of the centre volume. In this issue of EuroIntervention,
two papers
9,10
report the results of two alternative nFP access
routes for TAVR procedures. The first paper by Costa et al
9
reports
the initial European experience of transcaval TAVR.
Article, see page 1319
The authors conclude that transcaval access for TAVR is feasible
and safe in patients not suitable for femoral access. In fact, 10%
of patients experienced major vascular complications, which is
quite high when compared with the results reported in the French
registry
8
for nFP access (0.68%). Furthermore, about half of the
patients had a residual aorto-caval shunt without any information
on their midterm and long-term evolution. In this study, fifty
patients were enrolled in five high-volume centres over a five-
year period. This reflects the small number of potential candidates
for this approach nowadays; this number will be even lower in
the future. The second paper by van der Wulp et al
10
reports the
results of 200 patients who had TAVR through a subclavian/axil-
lary access with rates of 0.5% major vascular complications and
8.5% unplanned vascular repairs.
Article, see page 1325
The authors developed a predictive model of vascular com-
plications. A ratio of the sheath area to the axillary artery mini-
mal lumen area >1.63 was found to be the strongest independent
predictor of these complications. Although the developed model
is very interesting, its discriminatory power remains intermedi-
ate with an area under the curve of 0.67. The third nFP access
for TAVR not addressed in these two papers is the transcarotid
(TC) access. Surprisingly, the authors of the first paper
9
proposed
the transcaval approach to their patients not suitable for either the
transfemoral or axillary approach and did not first consider the TC
approach. The TC-TAVR approach (Figure 1) represented 3.4% of
patients treated with TAVR in the FRANCE TAVI registry
2
. The
TC access has the potential to alleviate the drawbacks of the other
nFP accesses. Indeed, the carotid artery is easily exposed. The clo-
sure of the artery at the end of the procedure is performed with
extreme simplicity using well-known vascular techniques. The
short distance between the entry point and the aortic valve facil-
itates the stability of the valve during the deployment. Patients