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. 2022 Feb 26;10(6):1806-1814.
doi: 10.12998/wjcc.v10.i6.1806.

Change and impact of left ventricular global longitudinal strain during transcatheter aortic valve implantation

Han Zhang  1 , Jin-Jie Xie  1 , Rong-Juan Li  1 , Yue-Li Wang  1 , Bao-Rong Niu  1 , Li Song  1 , Jing Li  1 , Ya Yang  2
Affiliations

Change and impact of left ventricular global longitudinal strain during transcatheter aortic valve implantation

Han Zhang et al. World J Clin Cases. .

Abstract

Background: Although transcatheter aortic valve implantation (TAVI) is a safe and effective treatment for aortic stenosis, it still carries some risks, such as valve leaks, stroke, and even death. The left ventricular global longitudinal strain (LVGLS) measurement may be useful for the prediction of adverse events during this operation.

Aim: To explore the change of LVGLS during TAVI procedure and the relationship between LVGLS and perioperative adverse events.

Methods: In this study, 61 patients who had undergone percutaneous transfemoral TAVI were evaluated by transthoracic echocardiography. Before surgery, data on left ventricular ejection fraction (LVEF) and LVGLS were collected separately following balloon expansion and stent implantation. Difference in values of LVGLS and LVEF during preoperative balloon expansion (pre-ex), preoperative stent implantation (pre-im) and balloon expansion-stent implantation (ex-im) were also examined. Adverse events were defined as perioperative death, cardiac rupture, heart arrest, moderate or severe perivalvular leakage, significant mitral regurgitation during TAVI, perioperative moderate or severe mitral regurgitation, perioperative left ventricular outflow tract obstruction, reoperation, and acute heart failure.

Results: The occurrence of perioperative adverse events was associated with differences in pre-ex LVGLS, but not with difference in pre-ex LVEF. There were significant differences between pre-LVGLS and ex-LVGLS, and between pre-LVGLS and im-LVGLS (P = 0.037 and P = 0.020, respectively). However, differences in LVEF were not significant (P = 0.358, P = 0.254); however differences in pre-ex LVGLS were associated with pre-LVGLS (P = 0.045). Compared to LVEF, LVGLS is more sensitive as a measure of left heart function during TAVI and the perioperative period. Moreover, the differences in LVGLS were associated with the occurrence of perioperative adverse events, and changes in LVGLS were apparent in patients with undesirable LVGLS before the surgery. Furthermore, LVGLS is useful to predict changes in cardiac function during TAVI.

Conclusion: Greater attention should be paid to the patients who plan to undergo TAVI with normal LVEF but poor LVGLS.

Keywords: Aortic stenosis; Ejection fraction; Left ventricular global longitudinal strain; Longitudinal strain; Transcatheter aortic valve implantation.

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Conflict of interest statement

Conflict-of-interest statement: The authors declare that they have no conflicts of interest.

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