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. 2016 Feb 16;110(3):180–185. doi: 10.1093/trstmh/trw008

Table 3.

Implications of lipoarabinomannan (LAM) antigenuria being a consequence of disseminated renal

Issue Implications References
Targeting the assay to appropriate patient groups
  • LAM assays should be prioritised for testing sick HIV-positive adults, such as those requiring acute hospital admission rather than ambulatory out-patients

  • Interpretation of urine-LAM results requires knowledge of HIV status

  • There are no data showing utility for testing in children

Nakiyingi et al. 201430
Design of diagnostic accuracy studies
  • The reference standard for disseminated TB requires testing more than one specimen type, a single sputum culture is inadequate

  • Ideally this would include mycobacterial blood cultures and/or urine Xpert MTB/RIF assay testing

Lawn et al. 201541
Design of studies to assess incremental diagnostic yield of urine-LAM testing
  • Should include patients both with and without respiratory symptoms

Lawn et al. 201446
Studies of clinical impact of Urine-LAM testing
  • Studies should focus on acute HIV-positive medical admissions in whom undiagnosed TB and mycobacteraemia is common. e.g. LAMRCT and STAMP trials42,43

Gupta et al. 20154
Lawn & Kerkhoff 201531
Patients testing LAM-positive have poorer prognosis than those testing LAM-negative
  • Patients testing urine-LAM-positive are much sicker and have poorer prognostic characteristics compared with those with TB who testing LAM-negative

Manabe et al. 201428
Lawn et al. 201336