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Biomedical subjects

P Rodrigo

Publications and source records attributed to P Rodrigo.

5 recordsLinked to original sources
PubMed1991

The effect of HeNe laser radiation on the thyroid gland of the rat.

Although laser irradiation is becoming common practice in medicine, there is not always a clear understanding of the possible side-effects. The present report is a light and electron microscopic study of the effects of fixed low intensity doses of soft HeNe laser on the thyroid of Wistar rats. The immediate effects are mild multifocal degenerative changes; these lesions recover in less than 3 months. Long-term lesions are identified only by electron microscopy; they consist of an increased number of peroxisomes and free or intramitochondrial crystalline structures. We discuss the laser's hypothetical functions.

Animals↗
PubMed1990

[Vascular pathology of the temporal bone].

In a review of our cases over the last twenty years a series of patients from the E.N.T. clinic has been selected, all of which exhibit a clinical history of tinnitus and vertigo, and in some cases hearing loss. Neuroradiological exploration was able to show that a vascular aetiology was responsible in every case. In the literature concerning this type of otological pathology these procedures are seldom found. This study presents our cases and draws attention to the high risk which surgical intervention entails if there is an undiagnosed vascular mass in the middle ear.

Angiography↗
PubMedDate not supplied

[General convulsive crisis related to pneumocephalus after inadvertant dural puncture in an obstetric patient].

We report a case of iatrogenic pneumocephalus in an obstetric patient after accidental dural puncture during repeated attempts to locate the epidural space by the technique of loss-of-resistance to air. Analgesia was provided throughout labor. Two days after puncture, typical spinal headache developed and was treated with bed rest, oral analgesics and hydration. The patient was released four days after delivery but returned to the hospital emergency service after suffering general convulsions and loss of consciousness which resolved spontaneously. A computerized tomography (CT) scan revealed pneumocephalus, to which the convulsions were attributed. No further convulsions occurred in spite of the fact that anticonvulsives were not prescribed. A CT scan one month later was normal.

Adult↗