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Kuzniar M, Wanhainen A, Tegler G, Hansen T, Mani K. Longitudinal Assessment of Inflammatory Activity in Acute Type B Aortic Dissection with Integrated Fluorodeoxyglucose Positron Emission Tomography/Magnetic Resonance Imaging. Eur J Vasc Endovasc Surg 2023; 66:323-331. [PMID: 37247689 DOI: 10.1016/j.ejvs.2023.05.039] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 04/14/2023] [Accepted: 05/23/2023] [Indexed: 05/31/2023]
Abstract
OBJECTIVE The significance of the inflammatory response in the natural course of acute type B aortic dissection (ATBAD) is unknown. The aim was to characterise inflammation and its transformation over time in ATBAD using 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET) with contrast enhanced magnetic resonance imaging (MRI). METHODS Ten patients underwent FDG-PET/MRI within two weeks of ATBAD (acute phase), three to four months (subacute phase), nine to 12 months (early chronic phase), and 21 to 24 months (late chronic phase) after ATBAD. Target background ratios (TBRs) were measured in the ascending aorta, aortic arch, and descending aorta. MRI inflammatory markers were assessed in the descending aorta. RESULTS Ten patients were included: median age 69 years, median clinical follow up 32 months. In the acute phase there was increased FDG uptake in the descending aorta (maximum TBR 5.8, SD [standard deviation] 1.3) compared with the ascending aorta (TBR 3.3, SD 0.8, p < .010) and arch (TBR 4.2, SD 0.6, p = .010). The maximum TBR of the descending aorta decreased from the acute to subacute phase (TBR 3.5, SD 0.6, p = .010) and further to the early chronic phase (TBR 2.9, SD 0.4, p = .030) but was stable thereafter. The acute phase maximum TBR in the ascending aorta (TBR 3.3) and arch (TBR 4.2) decreased to the subacute phase (ascending: TBR 2.8, SD 0.6, p = .020; arch: TBR 2.7, SD 0.4, p = .010) and was stable thereafter. Four patients underwent surgical aortic repair (three for aortic dilatation at one, five, and 28 months and one for visceral ischaemia at three weeks). MRI signs of inflammation were present in all surgically treated patients vs. two of six of medically treated patients (p= .048). CONCLUSION ATBAD is associated with increased FDG uptake in the acute phase primarily in the descending aorta, but also involving the aortic arch and ascending aorta, indicating an inflammatory response in the whole aorta. Inflammation subsides early in the ascending aorta and arch (three months), whereas it stabilised later in the descending aorta (nine to 12 months). MRI signs of inflammation were more frequent in patients who later needed surgical treatment and merit further investigation.
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Affiliation(s)
- Marek Kuzniar
- Department of Surgical Sciences, Vascular Surgery, Uppsala University, Uppsala, Sweden.
| | - Anders Wanhainen
- Department of Surgical Sciences, Vascular Surgery, Uppsala University, Uppsala, Sweden; Department of Surgical Sciences and Peri-operative Sciences, Surgery, Umeå University, Umeå, Sweden
| | - Gustaf Tegler
- Department of Surgical Sciences, Vascular Surgery, Uppsala University, Uppsala, Sweden
| | - Tomas Hansen
- Department of Surgical Sciences, Radiology, Uppsala University, Uppsala, Sweden
| | - Kevin Mani
- Department of Surgical Sciences, Vascular Surgery, Uppsala University, Uppsala, Sweden
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Vlachopoulos C, Terentes-Printzios D, Katsaounou P, Solomou E, Gardikioti V, Exarchos D, Economou D, Christopoulou G, Kalkinis AD, Kafouris P, Antonopoulos A, Lazaros G, Kotanidou A, Datseris I, Tsioufis K, Anagnostopoulos C. Time-related aortic inflammatory response, as assessed with 18F-FDG PET/CT, in patients hospitalized with severely or critical COVID-19: the COVAIR study. J Nucl Cardiol 2023; 30:74-82. [PMID: 35501458 PMCID: PMC9059681 DOI: 10.1007/s12350-022-02962-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 03/02/2022] [Indexed: 12/12/2022]
Abstract
AIM Arterial involvement has been implicated in the coronavirus disease of 2019 (COVID-19). Fluorine 18-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) imaging is a valuable tool for the assessment of aortic inflammation and is a predictor of outcome. We sought to prospectively assess the presence of aortic inflammation and its time-dependent trend in patients with COVID-19. METHODS Between November 2020 and May 2021, in this pilot, case-control study, we recruited 20 patients with severe or critical COVID-19 (mean age of 59 ± 12 years), while 10 age and sex-matched individuals served as the control group. Aortic inflammation was assessed by measuring 18F-FDG uptake in PET/CT performed 20-120 days post-admission. Global aortic target to background ratio (GLA-TBR) was calculated as the sum of TBRs of ascending and descending aorta, aortic arch, and abdominal aorta divided by 4. Index aortic segment TBR (IAS-TBR) was designated as the aortic segment with the highest TBR. RESULTS There was no significant difference in aortic 18F-FDG PET/CT uptake between patients and controls (GLA-TBR: 1.46 [1.40-1.57] vs. 1.43 [1.32-1.70], respectively, P = 0.422 and IAS-TBR: 1.60 [1.50-1.67] vs. 1.50 [1.42-1.61], respectively, P = 0.155). There was a moderate correlation between aortic TBR values (both GLA and IAS) and time distance from admission to 18F-FDG PET-CT scan (Spearman's rho = - 0.528, P = 0.017 and Spearman's rho = - 0.480, p = 0.032, respectively). Patients who were scanned less than or equal to 60 days from admission (n = 11) had significantly higher GLA-TBR values compared to patients that were examined more than 60 days post-admission (GLA-TBR: 1.53 [1.42-1.60] vs. 1.40 [1.33-1.45], respectively, P = 0.016 and IAS-TBR: 1.64 [1.51-1.74] vs. 1.52 [1.46-1.60], respectively, P = 0.038). There was a significant difference in IAS- TBR between patients scanned ≤ 60 days and controls (1.64 [1.51-1.74] vs. 1.50 [1.41-1.61], P = 0.036). CONCLUSION This is the first study suggesting that aortic inflammation, as assessed by 18F-FDG PET/CT imaging, is increased in the early post COVID phase in patients with severe or critical COVID-19 and largely resolves over time. Our findings may have important implications for the understanding of the course of the disease and for improving our preventive and therapeutic strategies.
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Affiliation(s)
- Charalambos Vlachopoulos
- 1st Department of Cardiology, Athens Medical School, National and Kapodistrian University of Athens, Hippokration Hospital, Dionysiou Aiginitou 8, 11528 Athens, Greece
| | - Dimitrios Terentes-Printzios
- 1st Department of Cardiology, Athens Medical School, National and Kapodistrian University of Athens, Hippokration Hospital, Dionysiou Aiginitou 8, 11528 Athens, Greece
| | | | - Eirini Solomou
- 1st Department of Cardiology, Athens Medical School, National and Kapodistrian University of Athens, Hippokration Hospital, Dionysiou Aiginitou 8, 11528 Athens, Greece
| | - Vasiliki Gardikioti
- 1st Department of Cardiology, Athens Medical School, National and Kapodistrian University of Athens, Hippokration Hospital, Dionysiou Aiginitou 8, 11528 Athens, Greece
| | | | | | - Georgia Christopoulou
- 1st Department of Cardiology, Athens Medical School, National and Kapodistrian University of Athens, Hippokration Hospital, Dionysiou Aiginitou 8, 11528 Athens, Greece
| | | | - Pavlos Kafouris
- Department of Informatics and Telecommunications, National and Kapodistrian University of Athens, Athens, Greece
| | - Alexios Antonopoulos
- 1st Department of Cardiology, Athens Medical School, National and Kapodistrian University of Athens, Hippokration Hospital, Dionysiou Aiginitou 8, 11528 Athens, Greece
| | - Georgios Lazaros
- 1st Department of Cardiology, Athens Medical School, National and Kapodistrian University of Athens, Hippokration Hospital, Dionysiou Aiginitou 8, 11528 Athens, Greece
| | | | | | - Konstantinos Tsioufis
- 1st Department of Cardiology, Athens Medical School, National and Kapodistrian University of Athens, Hippokration Hospital, Dionysiou Aiginitou 8, 11528 Athens, Greece
| | - Constantinos Anagnostopoulos
- Center for Experimental Surgery, Clinical & Translational Research, Biomedical Research Foundation Academy of Athens, 4 Soranou Ephessiou St, 115 27 Athens, Greece
- Department of Nuclear Medicine, Metropolitan Hospital, Athens, Greece
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Morello F, Bima P, Castelli M, Nazerian P. Acute aortic syndromes: An internist's guide to the galaxy. Eur J Intern Med 2022; 106:45-53. [PMID: 36229285 DOI: 10.1016/j.ejim.2022.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 09/05/2022] [Accepted: 10/05/2022] [Indexed: 11/03/2022]
Abstract
Acute aortic syndromes (AASs) are severe conditions defined by dissection, hemorrhage, ulceration or rupture of the thoracic aorta. AASs share etiological and pathophysiological features, including long-term aortic tissue degeneration and mechanisms of acute aortic damage. The clinical signs and symptoms of AASs are unspecific and heterogeneous, requiring large differential diagnosis. When evaluating a patient with AAS-compatible symptoms, physicians need to integrate clinical probability assessment, bedside imaging techniques such as point-of-care ultrasound, and blood test results such as d-dimer. The natural history of AASs is dominated by engagement of ischemic, coagulative and inflammatory pathways at large, causing multiorgan damage. Medical treatment, multiorgan monitoring and outcome prognostication are therefore paramount, with internal medicine playing a key role in non-surgical management of AASs.
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Affiliation(s)
- Fulvio Morello
- S.C. Medicina d'Urgenza U (MECAU), A.O.U. Città della Salute e della Scienza di Torino, Torino, Italy; Dipartimento di Scienze Mediche, Università degli Studi di Torino, Italy
| | - Paolo Bima
- S.C. Medicina d'Urgenza U (MECAU), A.O.U. Città della Salute e della Scienza di Torino, Torino, Italy; Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Basel, Switzerland
| | - Matteo Castelli
- Department of Emergency Medicine, Careggi University Hospital, Firenze, Italy
| | - Peiman Nazerian
- Department of Emergency Medicine, Careggi University Hospital, Firenze, Italy.
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Higashigawa T, Ichikawa Y, Chino S, Nakajima K, Ouchi T, Kato H, Hirano K, Tokui T, Kato N, Sakuma H. Usefulness of 18F-FDG PET/computed tomography in differentiating between subacute and chronic aortic dissection: initial investigation. Nucl Med Commun 2022; 43:794-799. [PMID: 35551162 DOI: 10.1097/mnm.0000000000001575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES In the selection of thoracic endovascular repair for aortic dissection (AD), it is important to distinguish between the subacute and chronic phases, but there is no reliable way to distinguish between them in patients with unknown onset of AD. The purpose of this study was to assess the diagnostic performance of 2-[18F] fluoro-2-deoxy-d-glucose (18F-FDG)-PET/computed tomography (PET/CT) for discriminating subacute AD from chronic AD. METHODS Thirteen patients with AD who were medically treated and followed up for 6 months were studied. 18F-FDG PET/CT images were obtained for each patient in the subacute phase (the first scan) and at 6 months (the second scan) after the onset. Target-to-background ratio (TBR) was measured as the maximum standardized uptake value (SUV) in the dissected aortic wall divided by blood pool SUV. RESULTS TBR was significantly higher in the first scan (mean ± SD, 1.97 ± 0.32) than in the second scan (1.69 ± 0.29, P = 0.007). The area under the receiver operating characteristic curve of TBR for discriminating subacute AD from chronic AD was 0.76. With a threshold of 1.74, the TBR showed the sensitivity, specificity, and positive and negative predictive value of 85%, 69%, 73%, and 82%, respectively, for the discrimination of subacute AD from chronic AD. CONCLUSION Metabolic assessment of dissected aortic wall by 18F-FDG PET/CT is useful in differentiating between subacute and chronic AD and can provide important information in determining the appropriate indication for treatment for patients with AD of unknown onset.
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Affiliation(s)
| | | | | | | | - Takafumi Ouchi
- Department of Radiology, Mie University Hospital, Edobashi, Tsu
| | - Hiroaki Kato
- Department of Radiology, Mie University Hospital, Edobashi, Tsu
| | - Koji Hirano
- Department of Cardiovascular Surgery, Ise Red Cross Hospital, Funae, Ise, Mie, Japan
| | - Toshiya Tokui
- Department of Cardiovascular Surgery, Ise Red Cross Hospital, Funae, Ise, Mie, Japan
| | - Noriyuki Kato
- Department of Radiology, Mie University Hospital, Edobashi, Tsu
| | - Hajime Sakuma
- Department of Radiology, Mie University Hospital, Edobashi, Tsu
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Liu J, Zhu H, Pei Y, Zhang H, Zhou J, Jing Z. A methylprednisolone-loaded and core-shell nanofiber-covered stent-graft to prevent inflammation and reduce degradation in aortic dissection. Biomater Res 2022; 26:15. [PMID: 35468814 PMCID: PMC9036796 DOI: 10.1186/s40824-022-00259-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 03/21/2022] [Indexed: 11/10/2022] Open
Abstract
Background Stent-graft-induced inflammation is an independent risk factor for adverse aortic remodeling in aortic dissection. In this context, we asked that whether a methylprednisolone-loaded stent-graft could reduce inflammation and degradation. Methods First, a coaxial electrospinning technique was used to create a core-shell film with methylprednisolone encapsulated in the inner of poly (L-lactide-co-caprolactone) nanofibers for controllable drug release. Second, an in vitro study was conducted to evaluate the biocompatibility of the nanofiber meshes. Third, the porcine aortic dissection model was developed to investigate the therapeutic effects of the methylprednisolone-loaded stent-graft. Results The results demonstrated that the nanofiber-coated film with a methylprednisolone-poly-caprolactone core layer and a poly (L-lactide-co-caprolactone) shell layer could effectively sustain drug release in vitro. In vivo study showed that the methylprednisolone-loaded stent-graft could reduce degradtion of aortic dissection by regulating inflammation. Conclusions Overall, the controllable drug release by coaxial nanofiber is a promising approach to alleviate aortic inflammation and promote aortic remodeling after stent-graft implantation. Supplementary Information The online version contains supplementary material available at 10.1186/s40824-022-00259-5.
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Soule E, Nguyen QH, Dervishi M, Matteo J, Ozdemir S. Hot Aortic Nodules. Cureus 2020; 12:e10479. [PMID: 33083181 PMCID: PMC7567324 DOI: 10.7759/cureus.10479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Atherosclerotic cardiovascular disease is the leading cause of death worldwide. Morbidity of the dreaded thrombotic complications of atherosclerosis such as cerebrovascular accident and myocardial infarction may be severe. Early detection of fulminant disease is therefore important for risk stratification and selecting a treatment strategy. In this report we present four patients in which 18-fluorodeoxyglucose uptake was identified in atherosclerotic plaques at positron emission tomography, performed for other indications. The study aims to showcase the potential implications of 18-fluorodeoxyglucose avid plaques, which may be otherwise overlooked at positron emission tomography. Early detection may aid in prevention of complications of atherosclerotic cardiovascular disease through aggressive lifestyle modification, as well as pharmacologic or other intervention, such as endovascular atherectomy.
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