[Facial paralysis during progressive chronic otitis. Reflections apropos of 32 cases].

The authors report their experience of 32 cases of facial paralysis occurring during progressive chronic otitis. Twenty were pre-operative. The conclusions which may be drawn are as follows: 1) It occurs in general in cases of severe chronic otitis with large destructive cholesteatomatous and osteitic lesions.

Diagnosis of cerebral lesions by Thallium 201.

The authors describe the diagnostic possibilities of Thallium 201 in cerebral lesions of various kinds. Two radiopharmaceuticals were used in 124 patients: thallium 201 citrate and technetium-99m pertechnetate labelled. When 201Tl was used, all cases of definite cerebral lesion gave a positive result within 10 minutes of injection.

Importance of the plasma refilling rate in the genesis of hypovolaemic hypotension during regular dialysis and controlled sequential ultrafiltration-haemodialysis.

The effects of ultrafiltration (UF) on plasma volume (PV) have been studied in eight patients using regular dialysis (RD) and controlled sequential ultrafiltration-haemodialysis (CSU) performed with a Rhodial 75 dialysis system. For a given value of UF the reduction of PV is determined by the plasma refilling rate. During CSU ultrafiltration induces a rapid increase in oncotic pressure without decreasing plasma osmolality.

The effect of tin on the tissue distribution of 99mTc-sodium pertechnetate.

When tin complex is administered prior to the injection of 99mTc-sodium pertechnetate, the distribution of the tracer is altered such that: (a) the concentration at foci of cerebral pathology is drastically reduced; (b) the concentration in the stomach (mucus cells), thyroid and salivary glands, and choroid plexus is greatly increased; and (c) there is a shift of the tracer from the plasma to the red blood cells. Bone studies utilizing a tin complex should be done after other organs have been evaluated.

[Voluminous neurinoma of 2d and 3d portion of the intrapetrosal facial nerve with subtympanal extension].

A patient presented with a facial nerve neurinoma of unusual size and which gave particularly clear radiological images. The curious feature of this observation is that there was no pre-operative facial paralysis as happens in about 15 p. 100 of cases.

[An unusual and dangerous clinical form: chronic osteomatous otitis].

Some chronic otites result in local or diffuse attico-antral osseous outgrowths. These may complicate all sorts of chronic otites: cholesteatomatous or otherwise, suppurative or merely inflammatory, with the tympanum open or closed. They should be distinguisged from tympanosclerosis and condensation or osseous eburnation lesions.

[The problem of hearing in the case of surgical cavities. New perspectives: the hidden hearing aid].

In numerous chronic osteitic and diffuse cholesteatomatous chronic otitis, the surgeon is obliged to form a Transmeatal partial or radical cavity usually with considerable mastoidectomy.