MOLECULAR DIAGNOSIS RTPCR CBNAAT – used for detection of very small amount of mycobacterial DNA. – The clinical sample in collected & incubated. – DNA is extracted, amplified using DNA polymerase & analyzed by electrophoresis on agarose gel & identified by ethidium bromide stain. – Sensitivity – 2 – 100%. – Specificity – 60 – 100%. – Advantages – rapid, sensitive, specific, requires very little DNA (< 1 AFB). – Limitations – contamination
RARE COMPLICATIONS OF TUBERCULOSIS IN CHILDREN Superior vena cava syndrome HLH(Hemophagocytic lymphohistiocytosis) IRIS(Immune reconstitution inflammatory syndrome) BROCK’S Syndrome(Right Middle Lobe Syndrome) Immune hemolytic anemia Pneumothorax