ArticleClinical rheumatology2024
Phenotypes of patients with lupus-associated pulmonary hypertension in the Chinese Han population: a cluster analysis.
Article in Clinical rheumatology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Abstract
objectivePulmonary hypertension (PH) is a severe complication of systemic lupus erythematosus (SLE). This study investigated the clinical features of patients with SLE-PH in China based on disease manifestations and organ involvement to define precise treatment of SLE and early prevention of complications.
methodsIn total, 205 SLE-PH patients were included in this study. A cluster analysis was applied according to six clinical and serological variables to define different subgroups of patients. The survival rates of SLE-PH patients and risk factors that influenced prognosis were also compared and a clinical prediction model was developed for the diagnosis of associated lupus nephritis (LN).
resultsPatients were clustered in five groups. Patients in cluster 1 had severe renal damage (all patients had LN and had the highest creatinine and urea nitrogen and the lowest eGFR levels). Patients in cluster 2 had mild renal damage (more than half of the patients had associated LN and 87.5% had increased urinary protein levels but presented a lower degree of renal damage than those in the first group. Patients in cluster 3 had low-grade proteinuria (all patients had 24h urinary protein < 0.5g). Patients in cluster 4 had hematuria or urinary tubular damage (26% of patients had associated LN, but none of the patients had proteinuria. In cluster 5, patients barely had any major organ involvement. The clinical prediction model for a diagnosis of SLE-PH-LN was anti-dsDNA antibodies > 364.64 IU/mL and neutrophil-to-leukocyte ratio (NLR) > 5.55.
conclusionOur findings provide evidence indicating that SLE-PH presents varying clinical phenotypes and the treatment varies accordingly, suggesting the need for individualized treatment. Key Points • Clustered grouping of patients with SLE-PH is associated with renal injury. • This may be because PH and LN share a common pathogenesis. • The clinical prediction model for a diagnosis of SLE-PH-LN was anti-dsDNA antibodies >364.64 IU/mL and NLR >5.55.
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