Impact of Aortic Atherosclerosis Burden on Outcomes of Surgical Aortic Valve Replacement.

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Citation: Annals of Thoracic Surgery. 2019 Aug 07PMID: 31400333Institution: MedStar Heart & Vascular InstituteForm of publication: Journal ArticleMedline article type(s): Journal ArticleSubject headings: IN PROCESS -- NOT YET INDEXEDYear: 2019ISSN:
  • 0003-4975
Name of journal: The Annals of thoracic surgeryAbstract: BACKGROUND: Epiaortic ultrasound detects and localizes ascending aortic atherosclerosis. In this analysis we investigated the association between epiaortic ultrasound-based atheroma grade during surgical aortic valve replacement (SAVR) and perioperative adverse outcomes.CONCLUSIONS: Moderate/severe aortic atherosclerosis was associated with an increased risk of adverse events following SAVR. Epiaortic ultrasound may serve as a useful adjunct for identifying patients who may benefit from strategies to reduce atheroembolic complications during SAVR.Copyright (c) 2019. Published by Elsevier Inc.METHODS: SAVR patients in a randomized trial of two embolic protection devices underwent a protocol-defined 5-view epiaortic ultrasound read at a core-laboratory. Aortic atherosclerosis was quantified with Katz atheroma grade and patients were categorized into mild (grade I-II) versus moderate/severe (grade III-V). Multivariable logistic regression was used to estimate associations between atheroma grade and adverse outcomes including death, clinically apparent stroke, cerebral infarction on diffusion-weighted magnetic resonance imaging (DW-MRI), delirium, and acute kidney injury (AKI) by 7 and 30 days.RESULTS: Of the 383 randomized patients, 326 (85.1%) had pre-cannulation epiaortic ultrasound data available. Of these, 106 (32.5%) had moderate/severe Katz atheroma grade at any segment of the ascending aorta. While there were no significant differences in the composite of death, stroke or cerebral infarction on DW-MRI by 7 days, moderate/severe atheroma grade was associated with a greater risk of AKI by 7 days (adjusted odds ratio [OR]: 2.63; 95% confidence interval [CI]: 1.24-5.58; p=0.01). At 30 days, patients with moderate/severe atheroma grade had a greater risk of death, stroke or AKI (adjusted OR: 1.97; 95%CI: 1.04-3.71; p=0.04).All authors: Argenziano M, DiMaio JM, Gelijns AC, Giustino G, Groh MA, Hung J, Iribarne A, Mathew JP, McCullough JN, Messe SR, Moskowitz AJ, O'Gara PT, Overbey JR, Pan S, Sledz NM, Smith PK, Taddei-Peters WC, Thourani VH, Voisine P, Zeng XFiscal year: FY2020Digital Object Identifier: Date added to catalog: 2019-08-27
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Journal Article MedStar Authors Catalog Article 31400333 Available 31400333

BACKGROUND: Epiaortic ultrasound detects and localizes ascending aortic atherosclerosis. In this analysis we investigated the association between epiaortic ultrasound-based atheroma grade during surgical aortic valve replacement (SAVR) and perioperative adverse outcomes.

CONCLUSIONS: Moderate/severe aortic atherosclerosis was associated with an increased risk of adverse events following SAVR. Epiaortic ultrasound may serve as a useful adjunct for identifying patients who may benefit from strategies to reduce atheroembolic complications during SAVR.

Copyright (c) 2019. Published by Elsevier Inc.

METHODS: SAVR patients in a randomized trial of two embolic protection devices underwent a protocol-defined 5-view epiaortic ultrasound read at a core-laboratory. Aortic atherosclerosis was quantified with Katz atheroma grade and patients were categorized into mild (grade I-II) versus moderate/severe (grade III-V). Multivariable logistic regression was used to estimate associations between atheroma grade and adverse outcomes including death, clinically apparent stroke, cerebral infarction on diffusion-weighted magnetic resonance imaging (DW-MRI), delirium, and acute kidney injury (AKI) by 7 and 30 days.

RESULTS: Of the 383 randomized patients, 326 (85.1%) had pre-cannulation epiaortic ultrasound data available. Of these, 106 (32.5%) had moderate/severe Katz atheroma grade at any segment of the ascending aorta. While there were no significant differences in the composite of death, stroke or cerebral infarction on DW-MRI by 7 days, moderate/severe atheroma grade was associated with a greater risk of AKI by 7 days (adjusted odds ratio [OR]: 2.63; 95% confidence interval [CI]: 1.24-5.58; p=0.01). At 30 days, patients with moderate/severe atheroma grade had a greater risk of death, stroke or AKI (adjusted OR: 1.97; 95%CI: 1.04-3.71; p=0.04).

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