Objective: To evaluate aortic diameter and predictors of aortic dilatation using 18FDG-PET/CT in a longitudinally followed cohort of patients with large vessel vasculitis (LVV)compared with controls. Methods: All consecutive patients with LVV who underwent at least 2 PET/CT scans between January 2008 and May 2015 were included. The first and last PET/CT study was evaluated by a radiologist and a nuclear medicine physician. Diameter and FDG uptake of the aorta was measured at 4 different levels: ascending, descending thoracic, suprarenal and infrarenal abdominal aorta. Twenty-nine age- and sex-matched patients with lymphoma who underwent at least 2 PET/CT scans in the same time interval were selected as controls. Results: 93 patients with LVV were included in the study. In the time interval between first and last PET/CT study (median time 31 months), the diameter of the ascending, descending thoracic and suprarenal abdominal aorta significantly increased in LVV patients but not in controls. At last PET/CT, patients with LVV compared with controls had higher diameter of ascending [35.41 (5.54)vs 32.97 (4.11)mm, p = 0.029], descending thoracic [28.42 (4.82)vs 25.72 (3.55)mm, p = 0.007]and suprarenal abdominal aorta, mean [25.34 (7.01)vs 22.16 (3.26)mm, p = 0.005]and more frequently had aortic dilatation [19% vs 3%, p = 0.023]. Significant predictors of aortic dilatation were male sex [OR 7.27, p = 0.001]and, only for GCA, hypertension [OR 6.30, p = 0.031]. Finally, GCA patients with aortic FDG uptake grade 3 at first PET/CT, compared to those with aortic FDG uptake ≤2, had significantly higher aortic diameter. Conclusions: Patients with LVV are at increased risk of aortic dilatation compared with age- and sex-matched controls. Significant predictors of aortic dilatation are male sex and, only for GCA, hypertension. GCA patients with aortic FDG uptake grade 3 are at increased risk of aortic dilatation.

Aortic dilatation in patients with large vessel vasculitis: A longitudinal case control study using PET/CT / Muratore, F.; Crescentini, F.; Spaggiari, L.; Pazzola, G.; Casali, M.; Boiardi, L.; Pipitone, N.; Croci, S.; Galli, E.; Aldigeri, R.; Versari, A.; Salvarani, C.. - In: SEMINARS IN ARTHRITIS AND RHEUMATISM. - ISSN 0049-0172. - 48:6(2019), pp. 1074-1082. [10.1016/j.semarthrit.2018.10.003]

Aortic dilatation in patients with large vessel vasculitis: A longitudinal case control study using PET/CT

Muratore F.;Pazzola G.;Galli E.;Salvarani C.
2019

Abstract

Objective: To evaluate aortic diameter and predictors of aortic dilatation using 18FDG-PET/CT in a longitudinally followed cohort of patients with large vessel vasculitis (LVV)compared with controls. Methods: All consecutive patients with LVV who underwent at least 2 PET/CT scans between January 2008 and May 2015 were included. The first and last PET/CT study was evaluated by a radiologist and a nuclear medicine physician. Diameter and FDG uptake of the aorta was measured at 4 different levels: ascending, descending thoracic, suprarenal and infrarenal abdominal aorta. Twenty-nine age- and sex-matched patients with lymphoma who underwent at least 2 PET/CT scans in the same time interval were selected as controls. Results: 93 patients with LVV were included in the study. In the time interval between first and last PET/CT study (median time 31 months), the diameter of the ascending, descending thoracic and suprarenal abdominal aorta significantly increased in LVV patients but not in controls. At last PET/CT, patients with LVV compared with controls had higher diameter of ascending [35.41 (5.54)vs 32.97 (4.11)mm, p = 0.029], descending thoracic [28.42 (4.82)vs 25.72 (3.55)mm, p = 0.007]and suprarenal abdominal aorta, mean [25.34 (7.01)vs 22.16 (3.26)mm, p = 0.005]and more frequently had aortic dilatation [19% vs 3%, p = 0.023]. Significant predictors of aortic dilatation were male sex [OR 7.27, p = 0.001]and, only for GCA, hypertension [OR 6.30, p = 0.031]. Finally, GCA patients with aortic FDG uptake grade 3 at first PET/CT, compared to those with aortic FDG uptake ≤2, had significantly higher aortic diameter. Conclusions: Patients with LVV are at increased risk of aortic dilatation compared with age- and sex-matched controls. Significant predictors of aortic dilatation are male sex and, only for GCA, hypertension. GCA patients with aortic FDG uptake grade 3 are at increased risk of aortic dilatation.
2019
12-ott-2018
48
6
1074
1082
Aortic dilatation in patients with large vessel vasculitis: A longitudinal case control study using PET/CT / Muratore, F.; Crescentini, F.; Spaggiari, L.; Pazzola, G.; Casali, M.; Boiardi, L.; Pipitone, N.; Croci, S.; Galli, E.; Aldigeri, R.; Versari, A.; Salvarani, C.. - In: SEMINARS IN ARTHRITIS AND RHEUMATISM. - ISSN 0049-0172. - 48:6(2019), pp. 1074-1082. [10.1016/j.semarthrit.2018.10.003]
Muratore, F.; Crescentini, F.; Spaggiari, L.; Pazzola, G.; Casali, M.; Boiardi, L.; Pipitone, N.; Croci, S.; Galli, E.; Aldigeri, R.; Versari, A.; Salvarani, C.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1180516
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