Complications of brain tissue pressure monitoring with a fiberoptic device

Seventy-five patients with intracranial hypertension whose Glasgow Coma Sco re (GCS) was 8 or below and in whom intracranial pressure (ICP) was monitor ed were examined for complications of this procedure. In 20 of the 75 patie nts we used only an intraparenchymal fiberoptic ICP monitoring transducer, while, in the remaining 55 patients, who required CSF drainage, a ventricul ar drainage set (VDS) was used in addition to ICP monitoring. The duration of monitoring with the ICP transducer alone was approximately 5.1 +/- 2.6 d as (min. 1, max. 13) and that of ICP monitoring with VDS was 6.2 +/- 3.1 da ys (min. 1, max. 13). In 8 cases a total of 9 complications were experience d (12 %). These complications were infection in 3 cases (4 %), epidural hem atoma in 2 cases (2.7 %): disconnection in 2 cases (2.7 %) and contusion in 2 cases (2.7 %). Although none of the 44 patients who were monitored for l ess than 5 days experienced infection, 3 of the 31 patients monitored for l onger than 5 days did experience infection (9.7 %) (p < 0.05). None of the 20 patients who underwent ICP monitoring only experienced infection. Howeve r, 3 of the 55 patients in whom the ventricular drainage set was implanted in addition to the transducer for ICP monitoring experienced infection (p < 0.05). Owing to its minimally invasive nature, low complication rate, and accuracy in monitoring the parenchyma pressure, the Camino fiberoptic intraparenchy mal monitor has become the system of choice in our clinic.