Fatal complications of systemic lupus erythematosus--an autopsy study from north India.

Systemic lupus erythematosus (SLE) is a multisystem, autoimmune disease with varied clinical manifestations and outcome. It may prove fatal due to disease activity or intercurrent infections. In recent years, earlier diagnosis and better treatment modalities have resulted in a change in the pattern of organ involvement and mode of death in the west. This aspect of the disease is unknown in India. Hence, in this autopsy series of SLE, the organ involvement and cause of death have been studied. Twenty five cases of clinically diagnosed SLE have been analysed retrospectively. Renal involvement was invariably present (96%) with class IV being the commonest lesion in 60% cases. Disease activity was noted in 60% cases. Pleuro pulmonary lesions were seen in 92% cases with infection being the commonest. Pulmonary infections included bacterial pneumonias (13), disseminated tuberculosis (3), pulmonary mucormycosis (1) and aspergillosis (1). Massive pulmonary haemorrhage in 5 cases and acute lupus pneumonitis in one, contributed to the demise of the patient. Vasculitis was evident in single organ in 9 cases, in two or more organs in 3 cases with systemic vasculitis significantly attributing to morbidity in 1 case. Active disease was the cause of death in 60% cases and infection in 40%.