Division of Pediatrics, Jayavarman VII Hospital, Kantha Bopha Children's Hospital, Siem Reap, Cambodia.
Eur J Pediatr. 2011 Mar;170(3):379-87. doi: 10.1007/s00431-011-1408-7. Epub 2011 Feb 9.
Toddlers are more prone to develop severe and extrapulmonary tuberculosis (TB) than older children. This is partially explained by differences in the immune response. Early and specific diagnosis is essential to start adequate treatment, especially if the central nervous system (CNS) is involved. The lack of sputum production and inherent dangers or impossibility of sampling CNS lesions may delay diagnosis. In addition, the magnetic resonance imaging (MRI) features of TB abscesses are non-specific and may mimic abscesses of other infectious etiology. (1)H-magnetic resonance spectroscopy ((1)H-MRS) may increase specificity of diagnosis by identifying lipids within the lesions that are considered characteristic for TB. Therefore, we studied four children with presumable CNS-TB with MRI and (1)H-MRS. In vivo and in vitro (1)H-MRS showed elevated lipid peaks within the TB lesions.
(1)H-MRS allows to non-invasively identifying TB with high specificity and may allow early installment of targeted antimicrobial treatment.
幼儿比年长儿童更容易发生严重和肺外结核病(TB)。这部分是由于免疫反应的差异所致。早期和特异性诊断对于开始适当的治疗至关重要,特别是如果涉及中枢神经系统(CNS)。缺乏痰液产生以及固有危险或无法采样 CNS 病变可能会延迟诊断。此外,TB 脓肿的磁共振成像(MRI)特征是非特异性的,并且可能模仿其他感染病因的脓肿。(1)H 磁共振波谱((1)H-MRS)可以通过识别病变内被认为是 TB 特征的脂质来提高诊断的特异性。因此,我们研究了 4 例疑似 CNS-TB 的儿童,进行了 MRI 和(1)H-MRS 检查。体内和体外(1)H-MRS 显示 TB 病变内脂质峰升高。
(1)H-MRS 可以非侵入性地特异性识别 TB,并可能允许早期进行靶向抗菌治疗。