[Results of the use of a new aminoglycoside antibiotic, sisomicin, in gram negative bacterial respiratory infections].

Clinical efficacy of a new aminoglycoside antibiotic, sisomicin, was evaluated in 14 patients with acute chest infections (12 cases with pneumonia and 2 with bronchitis). They were selected taking into account the isolation of sisomicin-sensitive Gram-negative bacilli in a sputum specimen collected prior to therapy. Local predisposing factors were present in 4 patients whereas general predisposing factors were present in 4 patients whereas general predisposing factors were recognizable in 9. Klebsiella was isolated in 5 cases, E. coli in 5 cases, Proteus in 4 cases, P. aeruginosa in 2 cases, Ct-trobacter and Providencia each in one. In all patients the bacteriological finding was negative after the cycle of therapy; clinical outcome was uniformly favourable (11 patients healed, 3 got better). No significant adverse effects due to the antibiotic was noted.