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Biomedical subjects

R M Rumbo

Publications and source records attributed to R M Rumbo.

6 recordsLinked to original sources
PubMed2005

The Camino intracranial pressure device in clinical practice. Assessment in a 1000 cases.

BACKGROUND: Intracranial pressure (ICP) monitoring has become standard in the management of neurocritical patients. A variety of monitoring techniques and devices are available, each offering advantages and disadvantages. Analysis of large populations has never been performed. PATIENTS AND METHODS: A prospective study was designed to evaluate the Camino fiberoptic intraparenchymal cerebral pressure monitor for complications and accuracy. RESULTS: Between 1992-2004 one thousand consecutive patients had a fiberoptic ICP monitor placed. The most frequent indication for monitoring was severe head injury (697 cases). The average duration of ICP monitoring was 184.6 +/- 94.3 hours; the range was 16-581 hours. Zero drift (range, -17 to 21 mm Hg; mean 7.3 +/- 5.1) was recorded after the devices were removed from 624 patients. Mechanical complications such as: breakage of the optical fiber (n = 17); dislocations of the fixation screw (n = 15) or the probe (n = 13); and failure of ICP recording for unknown reasons (n = 4) were found in 49 Camino devices. CONCLUSIONS: The Camino ICP sensor remains one of the most popular ICP monitoring devices for use in critical neurosurgical patients. The system offers reliable ICP measurements in an acceptable percentage of device complications and the advantage of in vivo recalibration. The incidence of technical complications was low and similar to others devices.

Adolescent↗
PubMed1998

[Hypodense meningioma. A care report].

INTRODUCTION: Meningiomas are benign tumours which originate in the arachnoid layer and are characterized by being iso- or hyper-dense on computerized axial tomography (CAT). Hypodense meningiomas are relatively infrequent and normally behave thus because of their fat content. A hypomeningioma is almost entirely composed of adipose tissue. However, a meningiotheliomatous meningioma with fatty degeneration, which is the case being considered, is characterized by zones of meningiotheliomatous cells together with zones of adipocytes. CLINICAL CASE: We present the case of a 73 year old woman with a meningiotheliomatous meningioma with extensive fatty degeneration which on CAT scan showed as a hypodense lesion, with well-defined edges, which took up contrast heterogeneously and produced a hyperosfosant reaction. On magnetic resonance (RMN) it gave signals of heterogeneous intensities. Up to the present time, only four cases of pure lipomeningiomas have been described in the literature. CONCLUSIONS: However, meningiomas with fatty degeneration are much more frequent. In this paper we discuss aspects of the differential diagnosis of meningiomas which behave as hypodense lesions on CAT scans.

Aged↗
PubMedDate not supplied

[De novo arachnoid cyst treated with a cystoperitoneal shunt].

INTRODUCTION: Arachnoid cysts (AC) are benign pathological structures that are typically found during childhood, and represent approximately 1% of all intracranial lesions. Unlike cases of secondary cysts with a known causation, which can be attributed to inflammatory processes or traumatic brain injuries, the causation of the primary cysts is unknown. In the cases reported to date, the cysts present from the first imaging study conducted, which is why they are considered to be of a prenatal origin. CASE REPORT: A boy who, at the age of 5 months, is found to have an AC of considerable dimensions that did not appear in a transfontanellar echographic study carried out for other reasons at the age of 2 months. CONCLUSION: The importance of this case lies in the fact that it has been possible to show the appearance of a cyst after birth in a sequence of images in the case of a pathology which, according to all the theories and tests, is considered to have a congenital causation.

Arachnoid Cysts↗
PubMedDate not supplied

[Psychiatric and cognitive complications arising from subthalamic stimulation in Parkinson's disease].

INTRODUCTION AND DEVELOPMENT: Subthalamic stimulation is a therapeutic option that can be used to treat advanced cases of Parkinson's disease. However, psychiatric or cognitive disorders have been reported in some patients treated using this technique. Age and a long disease history are two important risk factors for the appearance of these problems. The complications that have been reported include cases of depression, apathy, manias and psychosis. Surgery can also exacerbate the syndrome of addiction to levodopa that is sometimes observed. In contrast, sleep disorders usually improve with this technique. As far as the cognitive sphere is concerned, verbal fluency has been seen to deteriorate and the executive functions become impaired in patients over 69 years of age. These disorders are usually due to a number of different causes and have been attributed to the action of stimulating areas close to the subthalamic nucleus, to the presence of previously existing cognitive or psychiatric problems, to unrealistic expectations about this technique or to the individual's inability to adapt to the functional situation after surgery. CONCLUSIONS: Although generally speaking these disorders are not usually serious, they must be borne in mind so that adequate treatment can be indicated.

Antiparkinson Agents↗