A novel way of using teicoplanin in situ to treat central venous cathe
ters is described. Profound immunosuppression and the fact that the li
nes remain indwelling for long periods are two of the main reasons for
these infections. In children it is also difficult to prevent these l
ines being played with, which increases the likelihood of infection. T
he different types of infection that can occur in a central venous cat
heter are described and the clinical definition of a catheter infectio
n is provided. Tn an initial study, infective episodes in a small grou
p of 11 children were treated successfully with in situ amikacin. Most
pathogens were Gram-negative cocci. None of the catheters had to be r
emoved, and catheter life was prolonged by a mean of 118 d. Due to the
high incidence of Staphylococcus epidermidis in the initial study, in
situ teicoplanin was assessed in a subsequent study. Over the course
of 1 yr, 20 line infections occurred in 12 children. Empirical amikaci
n therapy was instituted and switched to teicoplanin once the pathogen
was confirmed as Gram-positive. An antibiotic-heparin mixture was int
roduced into the line and left in place for 24 h, after which time it
was replaced with fresh mixture until cultures were sterile. All patho
gens were sensitive to teicoplanin, all infections were treated succes
sfully and no catheters had to be removed. Overall, catheter life was
prolonged by a mean of 136 d. It was concluded that in situ teicoplani
n was effective and well tolerated for line infections (no side-effect
s were reported during the study). A minimum of 6 d therapy was recomm
ended. The patients wit:h less severe infections would have been suita
ble for treatment at home by their parents, district nurse or general
practitioner (GP).