Pleural and pulmonary involvement in systemic lupus erythematosus
Section snippets
Pleural involvement
Pleural disease represents the most common intrathoracic manifestation of SLE, with pathologic evidence of pleuritis or pleural fibrosis in 50–83% of patients at autopsy and pleural effusion in 16–50% on chest radiographs. Pleural involvement may be the first manifestation of SLE and is commonly associated with pericarditis [5]. Clinically lupus pleuritis is characterized by chest pain, dyspnea, cough and possibly fever. Pleuritic pain can be present without radiographically detectable chest
Pulmonary infections
Patients with SLE are more susceptible to bacterial and opportunistic infections due to immunosuppressive therapy with glucocorticoids or an immunomodulatory agent as well as characteristic immunologic dysfunction including immunoglobulin deficiency, acquired and inherited complement deficiencies, defects in chemotaxis and phagocytosis and functional asplenia which may account for the increased susceptibility to pneumococcal and Salmonella sepsis [6], [7], [8], [9]. Underlying parenchymal
Acute pulmonary diseases
Acute lupus pneumonitis (ALP) and diffuse alveolar hemorrhage (DAH) are uncommon, acute life-threatening syndromes associated with SLE resulting from acute injury to the alveolar-capillary unit [20]. ALP occurs in 1–4% of patients with SLE. It can reveal a previously unknown SLE in up to 50% of patients or may occur in the course of the disease. The clinical presentation of ALP is non specific and is characterized by the sudden onset of fever, cough and dyspnea with hypoxemia and hypocapnia,
Chronic pulmonary diseases
Diffuse interstitial lung disease (ILD) is relatively less common in SLE than in other CTDs, although it may dominate the clinical picture in some patients. The involvement of the lung affects 3–8% of SLE patients, with a progressive increase in prevalence with disease duration [49], [50]. However, different high resolution computed tomography (HRCT) series have demonstrated a higher rate of ILD features (about one third of SLE patients), suggesting that subclinical lung disease is common [51],
Pulmonary embolism
SLE patients are at increased risk for coagulation problems. Pulmonary embolism should be suspected in patients who have antiphospholipid antibodies (aPL) with acute respiratory symptoms such as pleuritic chest pain and dyspnoea. Antiphospholipid antibodies are a family of acquired autoantibodies that are associated with vascular thrombosis and may be present in up to two thirds of patients with SLE [69], [70]. The two most well known and clinically important are the lupus anticoagulant (LA)
Pulmonary arterial hypertension
CTDs such as systemic sclerosis (SSc) and SLE can be complicated by severe pulmonary arterial hypertension (PAH) [76]. Previous studies have largely concentrated on SSc-associated PAH (SSc-PAH), with a disease prevalence estimated to be between 7.5 and 12% [77], [78]. Some degree of PHT complicates the course of SLE in 5–14% of the patients [79], [80], [81]. PHT prevalence and severity of disease in patients with SLE tend to increase with time [82]. Autopsy findings from patients with SLE and
Myopathies and muscle dysfunction
Shrinking lung syndrome (SLS) is a manifestation of SLE characterized by progressive dyspnea, the characteristic chest radiographic findings of small lung volumes, elevated hemidiaphragms and bibasilar atelectasis, with a restrictive ventilatory defect and a preserved carbon monoxide transfer coefficient. The exact prevalence of SLS in patients with SLE is unknown; occurrence has been described in 18 to 27% of patients [91], [92]. The pathogenesis of this condition is still not entirely known.
Conclusion
To conclude, pulmonary manifestations of lupus erythematosus are myriad. CT scan has emerged as a very useful tool in the early diagnosis and management of pulmonary diseases associated with SLE. The necessity of ruling out infection and establishing the diagnosis of acute pulmonary involvement such as alveolar haemorrhage, lupus pneumonitis, pulmonary embolism or acute alveolitis in ILD is vital as these conditions need immediate treatment and any delay can result in increased morbidity and
Conflicts of interests
None.
Glossary
- aCL
- anticardiolipin antibodies
- ALP
- acute lupus pneumonitis
- aPL
- antiphospholipid antibodies
- APS
- antiphospholipid syndrome
- BAL
- bronchoalveloar lavage
- CAPS
- catastrophic APS
- CTD
- connective tissue diseases
- DAD
- diffuse alveolar damage
- DAH
- diffuse alveolar hemorrhage
- DLCO
- carbon monoxide diffusing capacity
- HRCT
- high-resolution computed tomography
- ILD
- diffuse interstitial lung disease
- LA
- lupus anticoagulant
- LIP
- lymphocytic interstitial pneumonia
- NSIP
- nonspecific interstitial pneumonia
- OP
- organizing pneumonia
- PAH
- pulmonary arterial
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Interstitial lung disease in autoimmune diseases
2024, Revista Colombiana de ReumatologiaInterstitial lung disease in systemic lupus erythematosus: state of the art search
2024, Revista Colombiana de ReumatologiaShrinking lung syndrome. A rare pulmonary manifestation of lupus: A case report
2023, Revista Colombiana de ReumatologiaPulmonary manifestations in late versus early systemic lupus erythematosus: A systematic review and meta-analysis
2018, Seminars in Arthritis and RheumatismCitation Excerpt :Moreover, in non-lupus populations, lung fibrosis increases with advanced age, raising our interest in examining these relationships in lupus [6]. Pulmonary involvement is common in SLE, and pulmonary features are the presenting symptom in 5% of patients [7]. The most common pulmonary manifestation, pleuritis, occurs in up to 50% of all lupus patients.
Pulmonary manifestations of Sjögren syndrome, systemic lupus erythematosus, and mixed connective tissue disease
2015, Rheumatic Disease Clinics of North AmericaCitation Excerpt :Pleural effusions may be either unilateral or bilateral, equally distributed between the left and right hemithorax, rarely become massive, and tend to be recurrent. Diagnostic thoracentesis is always recommended, because these patients may have effusions for many different reasons including infection, pulmonary embolism (PE), renal failure, and cardiac failure.49,51,53,54 The pleural fluid is typically a sterile yellow or serosanguineous exudate with a variable cell count, predominantly consisting of polymorphonuclear neutrophils or lymphocytes.
Pulmonary involvement in early systemic lupus erythematosus
2013, Egyptian Rheumatologist