Highlights longitudinal stent deformation as a potential complication of newer generation stents with modified designs, which can be managed with an overlapping stent.
Cautions operators about longitudinal deformation in newer stent designs; leaves open the true incidence and mechanical.
Since the emergence of stents, there has been persistent improvement in flexibility and deliverability of stents with modifications in its design and number of connectors. This has unfortunately created negative effect on longitudinal strength of stent resulting into a recently recognized and unaccustomed complication, longitudinal stent deformation (LSD). It is an abrupt shortening of the stent along its longitudinal axis, usually after deployment, due to various reasons. We present a case of LSD in Promus Element stent implanted at proximal left anterior descending artery. The stent shortening was about 25%-30% of its actual length. As this led to exposure of a part of lesion, it was successfully managed by overlapping another stent.
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Patil et al. (2017) studied this question.
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