Frontiers in public health · 2022
Case report: A 9-year systematic treatment failure of a pulmonary tuberculosis patient.
Клинический случайПоддержка исследования: вне правительства СШАСтатьяНазвание и аннотация: Перевод пока не подготовлен
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Jiang Hui, Zhu Chendi, Qin Liyi, Wu Xiaoguang, Yin Jinfeng, Guo Yijia, Ma Huan, Jia Junnan, Huo Fengmin, Xue Yi, Gao Mengqiu, Li Weimin
Аннотация
OBJECTIVE: To explore the reasons of failure in a case of pulmonary tuberculosis (PTB) after 9 years systematic treatment.
METHODS: We extracted the patients' treatment history, drug susceptibility testing (DST), Computed tomography (CT) images, and sequenced the isolated strains by whole gene sequencing (WGS).
RESULTS: Although most results of the phenotypical DSTs were consistent with the genotype DST, the occurrence of gene resistance to amikacin (AMK), capreomycin (CAP), moxifloxacin (MFX) was earlier than the phenotypical DST. Based on the continuously reversed results of phenotypical DSTs, CT images in different stages and WGS, it can be confirmed that the patient was infected with two different strains of Mycobacterium tuberculosis (M.TB). Moreover, severe cavities may be another factor leading to treatment failure.
CONCLUSION: Given the suggestive effect of genotype DST is earlier than the phenotypical DST, so genotype DST can play a better guiding role in patients with MDR-TB. Additionally, for patients who have not been cured for a long time, medication should be more cautious and the role of WGS in drug resistance surveillance should be fully utilized.
METHODS: We extracted the patients' treatment history, drug susceptibility testing (DST), Computed tomography (CT) images, and sequenced the isolated strains by whole gene sequencing (WGS).
RESULTS: Although most results of the phenotypical DSTs were consistent with the genotype DST, the occurrence of gene resistance to amikacin (AMK), capreomycin (CAP), moxifloxacin (MFX) was earlier than the phenotypical DST. Based on the continuously reversed results of phenotypical DSTs, CT images in different stages and WGS, it can be confirmed that the patient was infected with two different strains of Mycobacterium tuberculosis (M.TB). Moreover, severe cavities may be another factor leading to treatment failure.
CONCLUSION: Given the suggestive effect of genotype DST is earlier than the phenotypical DST, so genotype DST can play a better guiding role in patients with MDR-TB. Additionally, for patients who have not been cured for a long time, medication should be more cautious and the role of WGS in drug resistance surveillance should be fully utilized.