J Rheumatol. 1994 Feb;21(2):246-51. Unique Identifier : AIDSLINE
OBJECTIVE. To determine the circumstances, the clinical features and the
outcome of Pneumocystis carinii pneumonia (PCP) in human
immunodeficiency virus (HIV)-free patients with connective tissue
diseases (CTD). METHODS. Retrospective analysis of all cases referred 10
medical units in the last 10 years. RESULTS. A total of 34 cases of PCP
in patients with CTD were studied (Wegener's granulomatosis, n = 12;
systemic lupus erythematosus, n = 6; polyarteritis nodosa, n = 4;
poly/dermatomyositis, n = 5; others, n = 7). The majority of patients
(25/34 patients; 74%) presented PCP during the first 8 months following
the diagnosis of CTD. At the time of diagnosis of PCP, most patients
(32/34; 94%) were receiving corticosteroids (mean prednisone equivalent
dose: 1.2 mg/kg/day) associated in 24 cases with cytotoxic agents
(cyclophosphamide, n = 19; methotrexate, n = 5). Most patients were
lymphocytopenic at the onset of PCP: 91% (31/34) of patients had fewer
than 1.5 x 10(9)/l circulating lymphocytes and 76% (26/34) had fewer
than 0.8 x 10(9)/l. The mean duration of prodromal symptoms was 6 days:
this is much shorter than for AIDS associated PCP. Half the patients
required intensive care for respiratory failure. Mortality was high
(11/34 patients; 32%) although deaths were partly due to infections
acquired in intensive care units. Among the 23 survivors, 10 (43%)
received secondary prophylaxis for PCP and 13 (57%), received the usual
therapeutic regimen. No relapse has been observed in either group with a
mean followup of 22 months. CONCLUSION. Although rare, PCP must be
considered in patients with any type of CTD and receiving cytotoxic
agents and corticosteroids, particularly if they are lymphocytopenic.
Thus, bronchoalveolar lavage must be rapidly performed in patients with
CTD presenting with fever, pulmonary infiltrates, hypoxemia and
lymphopenia.
Adult Aged Aged, 80 and over Connective Tissue
Diseases/*COMPLICATIONS/DRUG THERAPY Cyclophosphamide/ADVERSE EFFECTS
Female Human Immunosuppressive Agents/ADVERSE EFFECTS Male
Methotrexate/ADVERSE EFFECTS Middle Age Opportunistic
Infections/*COMPLICATIONS/DRUG THERAPY/ETIOLOGY Pneumonia, Pneumocystis
carinii/*COMPLICATIONS/DRUG THERAPY/ ETIOLOGY Prednisone/ADVERSE
EFFECTS Prognosis Trimethoprim-Sulfamethoxazole
Combination/THERAPEUTIC USE JOURNAL ARTICLE