Exposure to antibiotics containing pivalic acid was associated with encephalopathy and progression to lethal cardiac arrhythmia in patients suffering from PCD.

Four patients, who received epidural blood patch to treat postdural puncture headache, were examined with computed tomography in order to demonstrate the distribution of the injected blood. Blood alone could not be identified, but adding 2 ml contrast agent Iohexol 180 mg J/ml (Omnipaque, Nycomed Imaging) to 18 ml blood gave an excellent demonstration of the distribution of the blood in the epidural space, both cranio-caudally (7-14 segments) and spatially in relation to the epidural septae. The blood-contrast media had a strong affinity to the dural sac. There was no support of the space filling effect of blood patch.

We describe two young men with low back pain, who were given repeat lumbar epidural blocks for treatment of pain. They both developed reiterated unilateral Homer's syndrome. Computer tomography and myelography of the lumbar spine prior to the intervention showed signs of suspect disc herniation and sequelae after previous surgery.

No abstract