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R D'Avanzo

Publications and source records attributed to R D'Avanzo.

4 recordsLinked to original sources

[Hypertensive pneumocephalus, postoperative complication of chronic subdural hematomas].

The authors report 3 cases of subdural tension pneumocephalus developed after surgery for subdural chronic hematomas. The mechanisms involved in the pathogenesis of this complication are discussed; the importance of the computed tomography in the assessment of the subdural tension pneumocephalus is stressed. Surgery is always indicated in cases of increased tension of the air collection and generally resolves the neurological deficits.

Aged

[Postoperative lumbar discitis].

The authors report our experience on 19 cases of discitis developed after operations for herniated lumbar disc. Because of the negativity of the neuroradiological studies in the acute stage, the recognition of the typical syndrome (severe back pain, spasm of the paravertebral lumbar muscles, limited spinal motility, fever) beginning 3-30 days post-operatively and the study of some laboratory tests (elevated Erythrocyte sedimentation rate (ESR) and midly to moderately elevated white blood cells (WBC) are very important for diagnosis. The first radiographic findings (disc space narrowing, ecc.) are detectable only 4 to 6 weeks after the first symptoms; other X-ray findings are not seen post-operatively before 6 months-2 years. The CT-scan is diagnostic of discitis only when the following three specific signs are present: a) anterior paravertebral soft tissue swelling with obliteration of paravertebral fat planes; b) fragmentation or erosion of vertebral end plates; c) paravertebral fluid collection (abscess). In our experience a period of immobilization of the spine with a plaster body jackets and the use of adequate antibiotic therapy are the more effective treatment. Undoubtedly the discits are the results of an infection that must be prevented adhering to the aseptic principles not only during surgery but also during the procedures performed in the radiology suite.

Adult

Cavernous angioma does not exist?

12 cases of cerebral "venous angioma" are reported; pathological, clinical and radiological features of the lesion are reviewed. "Venous angioma" should be regarded as a developmental anatomic variation of the venous drainage system of the white matter. Its clinical significance is controversial, although it has been reported to cause hemorrhage, seizures, progressive neurological deficits, headaches. The clinical presentation of our patients was variable and, in some of them, dependent also on associated lesions. An hematoma was found in three patients, infarction in one and tumor in one. Angiography, CT and MRI demonstrated the typical appearance of the anomaly. Surgery was performed in one patient harboring a significant cerebellar hematoma and the coexistence of a cavernoma was pathologically confirmed. Venous developmental anomalies are often identified as the source of symptoms due to other conditions, that should be treated independently sparing the anomaly.

Adult