Abstract：[Abstract] Objective To explore the clinical efficacy on chemotherapy regimens with Levofloxacin for retreatment of smear-positive pulmonary tuberculosis. Methods 116 patients with retreatment of smear-positive pulmonary tuberculosis in Zhejiang Taizhou Municipal Hospital from September 2012 to January 2015 were selected and randomly divided into the trial group (49 cases) and the control group (48 cases), a total of 19 cases fell off and 97 cases completed the treatment. The trial group were treated with 3HRZELfx/5HRLfx plan. The control group were treated with 2HRZESm/6HRE plan. The treatment efficacy were evaluated after the end of 8 months by observing the clinical efficacy, the sputum negative conversion rate, chest CT efficacy, adverse reaction. Results The total effective rate of the trial group was 97.96%, while the control group's total effectiveness was 83.33%. Comparing the two groups, it was found that there were statistically significant differences (P < 0.05). The results showed that the clinical efficacy of the trial group was better than that of the control group. Sputum negative conversion rate: the trial group was 97.96%, while the control group was 81.25%. Comparing the two groups, it was found that there were statistically significant differences (P < 0.05). The results showed that the sputum negative conversion rate of the trial group was better than that of the control group. Chest CT efficacy: the total effective rate of the trial group was 95.92%, while the control group was 81.25%. Comparing the two groups, it was found that there were statistically significant differences (P < 0.05).The results showed that the efficacy of chest CT the trial group was better than that of the control group. Adverse reaction: 5 cases of adverse reactions were found in the trial group, 15 cases of adverse reactions were found in the control group. Comparing the two groups, it was found that there were statistically significant differences (P < 0.05), which showed that the trial group could significantly reduce the adverse reactions of patients. Conclusion With the treatment of Levofloxacin chemotherapy regimen, the clinical efficacy, chest CT efficacy and sputum negative conversion rate of the patients with retreatment smear-positive pulmonary tuberculosis are superior to those of the standard chemotherapy regimens, but the adverse reaction rate is lower than that of the standard chemotherapy regimens.
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