Prediction of Therapeutic Response in Steroid-treated Pulmonary Sarcoidosis
2015
To find a pretreatment predictor of steroid responsiveness in pulmonary sarcoidosis we studied 21 patients before and after steroid treatment by clinical evaluation, pulmonary function tests, bronchoalveolar lavage (BAL), gallium-67 lung scan, and serum angiotensin-converting enzyme (SACE) level. Although clinical score, forced vital capacity (FVC), BAL percent lymphocytes (% lymphs), quantitated gallium-67 lung uptake, and SACE levels all improved with therapy, only the pretreatment BAL % lymphs correlated with the improvement in FVC (r = 0.47, p < 0.05). Pretreatment BAL % lymphs of ⩾ 35% predicted improvement in FVC of 10/11 patients, whereas among 10 patients with BAL % lymphs < 35%, 5 patients improved and 5 deteriorated. Clinical score, pulmonary function parameters, quantitated gallium-67 lung uptake, and SACE level used alone, in combination with BAL % lymphs or in combination with each other, did not improve this predictive value. We conclude that steroid therapy improves a number of clinical and...
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