Neonatal Lupus Erythematosus as a Rare Cause of Fever in Young Infants

Neonatal lupus erythematosus presenting with effusions: A 13-year retrospective study

OBJECTIVES

Neonatal systemic lupus erythematosus (NLE) is an acquired autoimmune disease. The presence of effusions, such as pleural effusion and pericardial effusion, is rare. The present study helped investigate the clinical characteristics and progression of children with NLE combined with effusions.

METHODS

Clinical data of patients diagnosed with NLE were retrospectively collected and analyzed from January 1, 2011, to December 31, 2023, at the Children's Hospital of Soochow University and Suzhou Municipal Hospital. Patients with NLE were divided into effusion and non-effusion groups based on the presence of effusion. Moreover, the clinical data of the newborns in both groups were compared and investigated.

RESULTS

Eleven (11/45, 24.44%) NLE patients had effusions, such as pleural effusion, testicular hydrocele, peritoneal effusion, pericardial effusion, and hydrocephalus. Other organs involved in effusion patients were cutaneous, gastrointestinal, hematologic, cardiac, and neurological. Among the patients with effusion, five cases of SLE in pregnant mothers, two cases of Sjogren's syndrome, one case of photoallergic symptoms, and three of pregnant mothers with no history of antenatal autoimmune disease. Pregnant mother' autoimmune disease in remission prior to pregnancy, or stable low disease activity. Seven patients were positive for Anti-SSA, five of which were double positive for Anti-SSA and Anti-SSB. Compared with the non-effusion group, the effusion group patients had significantly higher lactate dehydrogenase, creatine kinase, and fibrinogen, significantly lower platelets, total protein, and albumin. These patients were likelier to have thrombocytopenia and coagulation abnormalities. Logistics regression analysis demonstrated that NLE patients with effusions are more likely to have decreased serum total protein levels. All NLE patients with effusion have self-resorption of the effusion.

CONCLUSIONS

24.44% of patients had effusions in our study. NLE patients with effusion are more likely to have hematologic involvement and a more inflammatory response. The effusion in NLE patients is usually self-resorption, severe cases can be treated with nonsteroidal anti-inflammatory drugs/steroids. Key Points • NLE patients combined with effusions and were self-limiting, with pleural effusion being the most common. • NLE patients combined with effusions have a more inflammatory response, significant abnormalities in the blood routine and biochemical-related indexes.

Fever, convulsions, and rash: a case report of neonatal lupus erythematosus with macrophage activation syndrome

Neonatal lupus erythematosus (NLE) is a rare acquired autoimmune disease associated with the entry of maternal antibodies into the fetal circulation via the placenta during pregnancy. Macrophage activation syndrome (MAS) is a severe hyperinflammatory disease. Herein, we present a case of NLE with MAS accompanied by fever, convulsions, and rash. High-dose gamma globulin and non-shock doses of steroids can be used as a first-line treatment for NLE with MAS. Fever can be a clinical manifestation of NLE, especially cutaneous lupus. Rash recession could be used to judge whether the disease is effectively controlled by treatment.

[Research progress on the manifestations and prognosis of neonatal lupus erythematosus in various systems]

Neonatal lupus erythematosus (NLE) is caused by the transmission of maternal anti-Ro/SSA antibodies, anti-La/SSB antibodies, and other autoantibodies to the fetus through the placenta. Usually, with the disappearance of autoantibodies in the children's body, abnormal changes in the mucocutaneous, blood system, and digestive system can spontaneously subside, but the damage to various systems caused by autoantibodies may persist for a long time. This article provides a comprehensive review of the manifestations and prognosis of NLE in various systems, including mucocutaneous, blood system, circulatory system, nervous system, digestive system, respiratory system, aiming to provide reference for clinical work.