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203. Correlating Cardiac PET Results with Intra-Operative Findings in Infectious Endocarditis

BACKGROUND: Care for patients with infectious endocarditis is complicated by delays in diagnosis and relatively low sensitivity of existing diagnostic algorithms, particularly the Duke Criteria. In recent years, cardiac positron emission tomography (PET) has been identified as a useful tool in detec...

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Autores principales: El-Dalati, Sami, Weinberg, Richard, Murthy, Venkatesh, Owczarczyk, Anna, Riddell, Jamie, Cinti, Sandro, Fagan, Christopher
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6810431/
http://dx.doi.org/10.1093/ofid/ofz360.278
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author El-Dalati, Sami
Weinberg, Richard
Murthy, Venkatesh
Owczarczyk, Anna
Riddell, Jamie
Cinti, Sandro
Fagan, Christopher
author_facet El-Dalati, Sami
Weinberg, Richard
Murthy, Venkatesh
Owczarczyk, Anna
Riddell, Jamie
Cinti, Sandro
Fagan, Christopher
author_sort El-Dalati, Sami
collection PubMed
description BACKGROUND: Care for patients with infectious endocarditis is complicated by delays in diagnosis and relatively low sensitivity of existing diagnostic algorithms, particularly the Duke Criteria. In recent years, cardiac positron emission tomography (PET) has been identified as a useful tool in detecting occult endocardial infections. Multiple prospective studies have demonstrated that when incorporated with conventional imaging modalities cardiac PET can improve the sensitivity of the Duke Criteria by 27–38 percent. These studies used as their gold standard for diagnosis the consensus opinion of an endocarditis team and were characterized by a relatively low percentage of patients who underwent surgery. We reviewed 4 years of surgically managed IE cases at a tertiary care center where cardiac PET was used to aid diagnosis. METHODS: Between July 1, 2014 and December 31, 2018 we retrospectively reviewed 68 surgically managed cases of endocarditis. Cases were identified using ICD-9 and ICD-10 codes of patients who underwent surgical valve replacement for endocarditis as well as all patients who had cardiac PET scans to rule out endocarditis. Variables including PET results, operative findings, valve culture, pathology and PCR testing were recorded. RESULTS: 14 patients were identified who underwent cardiac PET prior to their surgical intervention. 9 cases were classified as possible endocarditis by Duke Criteria and 10 involved prosthetic valves. 12/14 scans were interpreted as suggestive of or consistent with endocarditis. Twelve positive PETs were associated with either operative findings of infection and/or positive PCR testing on the excised valve (positive predictive value: 100%). The 2 patients with negative scans were found to have noninfectious vegetations intra-operatively, negative valve cultures and negative pathology. CONCLUSION: Cardiac PET correlates closely with intra-operative findings in patients with endocarditis. In patients with suspected endocarditis it may help guide surgical decision making. Cardiac PET should be considered for addition to the Modified Duke’s Criteria similar to the European Society of Cardiology guidelines. [Image: see text] [Image: see text] DISCLOSURES: All authors: No reported disclosures.
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spelling pubmed-68104312019-10-28 203. Correlating Cardiac PET Results with Intra-Operative Findings in Infectious Endocarditis El-Dalati, Sami Weinberg, Richard Murthy, Venkatesh Owczarczyk, Anna Riddell, Jamie Cinti, Sandro Fagan, Christopher Open Forum Infect Dis Abstracts BACKGROUND: Care for patients with infectious endocarditis is complicated by delays in diagnosis and relatively low sensitivity of existing diagnostic algorithms, particularly the Duke Criteria. In recent years, cardiac positron emission tomography (PET) has been identified as a useful tool in detecting occult endocardial infections. Multiple prospective studies have demonstrated that when incorporated with conventional imaging modalities cardiac PET can improve the sensitivity of the Duke Criteria by 27–38 percent. These studies used as their gold standard for diagnosis the consensus opinion of an endocarditis team and were characterized by a relatively low percentage of patients who underwent surgery. We reviewed 4 years of surgically managed IE cases at a tertiary care center where cardiac PET was used to aid diagnosis. METHODS: Between July 1, 2014 and December 31, 2018 we retrospectively reviewed 68 surgically managed cases of endocarditis. Cases were identified using ICD-9 and ICD-10 codes of patients who underwent surgical valve replacement for endocarditis as well as all patients who had cardiac PET scans to rule out endocarditis. Variables including PET results, operative findings, valve culture, pathology and PCR testing were recorded. RESULTS: 14 patients were identified who underwent cardiac PET prior to their surgical intervention. 9 cases were classified as possible endocarditis by Duke Criteria and 10 involved prosthetic valves. 12/14 scans were interpreted as suggestive of or consistent with endocarditis. Twelve positive PETs were associated with either operative findings of infection and/or positive PCR testing on the excised valve (positive predictive value: 100%). The 2 patients with negative scans were found to have noninfectious vegetations intra-operatively, negative valve cultures and negative pathology. CONCLUSION: Cardiac PET correlates closely with intra-operative findings in patients with endocarditis. In patients with suspected endocarditis it may help guide surgical decision making. Cardiac PET should be considered for addition to the Modified Duke’s Criteria similar to the European Society of Cardiology guidelines. [Image: see text] [Image: see text] DISCLOSURES: All authors: No reported disclosures. Oxford University Press 2019-10-23 /pmc/articles/PMC6810431/ http://dx.doi.org/10.1093/ofid/ofz360.278 Text en © The Author(s) 2019. Published by Oxford University Press on behalf of Infectious Diseases Society of America. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs licence (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reproduction and distribution of the work, in any medium, provided the original work is not altered or transformed in any way, and that the work is properly cited. For commercial re-use, please contact journals.permissions@oup.com
spellingShingle Abstracts
El-Dalati, Sami
Weinberg, Richard
Murthy, Venkatesh
Owczarczyk, Anna
Riddell, Jamie
Cinti, Sandro
Fagan, Christopher
203. Correlating Cardiac PET Results with Intra-Operative Findings in Infectious Endocarditis
title 203. Correlating Cardiac PET Results with Intra-Operative Findings in Infectious Endocarditis
title_full 203. Correlating Cardiac PET Results with Intra-Operative Findings in Infectious Endocarditis
title_fullStr 203. Correlating Cardiac PET Results with Intra-Operative Findings in Infectious Endocarditis
title_full_unstemmed 203. Correlating Cardiac PET Results with Intra-Operative Findings in Infectious Endocarditis
title_short 203. Correlating Cardiac PET Results with Intra-Operative Findings in Infectious Endocarditis
title_sort 203. correlating cardiac pet results with intra-operative findings in infectious endocarditis
topic Abstracts
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6810431/
http://dx.doi.org/10.1093/ofid/ofz360.278
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