TY - JOUR
T1 - Malar rash is a predictor of subclinical airway inflammation in patients with systemic lupus erythematosus
T2 - a pilot study
AU - Damiani, Giovanni
AU - Pigatto, Paolo Daniele Maria
AU - Marzano, Angelo Valerio
AU - Rizzi, Maurizio
AU - Santus, Pierachille
AU - Radovanovic, Dejan
AU - Loite, Ulvi
AU - Torelli, Lucio
AU - Petrou, Stephen
AU - Sarzi-Puttini, Piercarlo
AU - Atzeni, Fabiola
AU - Adawi, Mohammad
AU - Bridgewood, Charlie
AU - Bragazzi, Nicola Luigi
AU - Watad, Abdulla
AU - Malerba, Mario
PY - 2019/1/1
Y1 - 2019/1/1
N2 -
Background: Systemic lupus erythematosus (SLE) is a chronic, auto-immune, multi-organ disease that can affect both the skin and the lungs. Malar rash is a common skin manifestation of SLE and is linked to SLE disease activity, whereas lung involvement is a generally negative prognostic factor for these patients. However, a sensitive and non-invasive screening tool for potential lung involvement in SLE patients is still not available. Methods: This study aimed to investigate the relationship between malar rash and airway inflammation in adult SLE patients who were not known to have any lung involvement (clinical or radiologic). The study comprised of the measurement of the concentration of NO in exhaled breath or fraction of exhaled nitric oxide (FeNO) and levels were compared between those with and without malar rash. This tool is considered as a sensitive and non-invasive method that is routinely used in patients with asthma or other respiratory diseases to identify airway inflammation. Results: A total of 125 patients (100 females, 25 males) were enrolled during the study period from January 2011 to December 2014. Patients with malar rash (N = 35) had a significant decrease in serum levels of C4 (p < 0.05) compared to patients without malar rash (N = 90). The mean levels of FeNO in overall patients were 36.44 ± 8.87 ppb. A statistically significant difference in FeNO
50
values between patients with malar rash (43.46 ± 6.72 ppb) and without (29.43 ± 3.64 ppb) was found (p < 0.001). FeNO
50
values were inversely correlated only with serum C4 (p < 0.01). However, no correlation between FeNO
50
values and SLE clinical disease activity scores was found. Conclusions: The presence of a malar rash may predict sub-clinical airway inflammation in SLE patients. Further prospective studies are needed to confirm the usefulness of FeNO measurements in monitoring SLE-associated airway inflammation.
AB -
Background: Systemic lupus erythematosus (SLE) is a chronic, auto-immune, multi-organ disease that can affect both the skin and the lungs. Malar rash is a common skin manifestation of SLE and is linked to SLE disease activity, whereas lung involvement is a generally negative prognostic factor for these patients. However, a sensitive and non-invasive screening tool for potential lung involvement in SLE patients is still not available. Methods: This study aimed to investigate the relationship between malar rash and airway inflammation in adult SLE patients who were not known to have any lung involvement (clinical or radiologic). The study comprised of the measurement of the concentration of NO in exhaled breath or fraction of exhaled nitric oxide (FeNO) and levels were compared between those with and without malar rash. This tool is considered as a sensitive and non-invasive method that is routinely used in patients with asthma or other respiratory diseases to identify airway inflammation. Results: A total of 125 patients (100 females, 25 males) were enrolled during the study period from January 2011 to December 2014. Patients with malar rash (N = 35) had a significant decrease in serum levels of C4 (p < 0.05) compared to patients without malar rash (N = 90). The mean levels of FeNO in overall patients were 36.44 ± 8.87 ppb. A statistically significant difference in FeNO
50
values between patients with malar rash (43.46 ± 6.72 ppb) and without (29.43 ± 3.64 ppb) was found (p < 0.001). FeNO
50
values were inversely correlated only with serum C4 (p < 0.01). However, no correlation between FeNO
50
values and SLE clinical disease activity scores was found. Conclusions: The presence of a malar rash may predict sub-clinical airway inflammation in SLE patients. Further prospective studies are needed to confirm the usefulness of FeNO measurements in monitoring SLE-associated airway inflammation.
KW - Airway inflammation
KW - FeNO
KW - LFA-REAL
KW - Malar rash
KW - Systemic lupus erythematosus
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UR - http://www.scopus.com/inward/citedby.url?scp=85064747537&partnerID=8YFLogxK
U2 - 10.1007/s10067-019-04536-y
DO - 10.1007/s10067-019-04536-y
M3 - Article
AN - SCOPUS:85064747537
SN - 0770-3198
VL - 38
SP - 2541
EP - 2546
JO - Clinical Rheumatology
JF - Clinical Rheumatology
IS - 9
ER -