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Table 1 Numbers and percentages of patients showing positive or negative PCR in CSF samples.

From: Evaluation of the IS6110 PCR assay for the rapid diagnosis of tuberculous meningitis

Category

PCR +ve

PCR -ve

A] TBM (51)

42 (82.4%)

 

   (i) Confirmed TBM * (35)

32 (91.4%)

3

   (ii) Clinically diagnosed TBM ** (16)

10 (62.5%)

6

B] Non TBM (29)

7 (24.1%)

 

   (i) Infectious # (12)

3 (25.0%)

9

   (ii) Non-infectious## (17)

4 (23.5%)

13

  1. *Confirmed TBM = culture +ve/smear -ve
  2. **Clinical diagnosed TBM = culture -ve/smear -ve
  3. #Pyogenic meningitis (5), viral meningitis (7)
  4. ## Chronic headache & hypertension (10), head injury (3), paraparesis, dementia, myelopathy, acute cerebellitis (1 each)
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Fluids and Barriers of the CNS

ISSN: 2045-8118