Association of the superior semicircular canal and tegmen tympani dehiscences and its relationship with the pneumatisation of the temporal bone.

Purpose: To analyse the degree of pneumatisation of the temporal bone when there is an association between dehiscence of the superior semicircular canal and dehiscence of the tegmen tympani.

Materials And Methods: We analysed a retrospective CT study of 124 selected cases. A single inclusion criterion was applied: the presence of a dehiscence of the tegmen tympani.

[A new cause of structural vertigo: superior semicircular canal dehiscence].

The medical history of vertigo must be updated to accommodate current knowledge. In 1998 a new cause of vertigo associated with a structural anomaly was reported: superior semicircular canal dehiscence. This condition causes vestibular and auditory disorders, which are frequently associated, and a well-directed medical history allows a suspected diagnosis to be reached: the subject may suffer from vertigo triggered by loud sounds (Tullio's phenomenon) and by changes in pressure within the ear or in the intracranial space, when Valsalva's manoeuvres are performed or on pressing on the tragus (Hennebert's sign).

Contribution to morphological knowledge of the development of the human incudo-mallear joint.

At the time of birth, the incudo-mallear joint is completely developed. OBJECTIVE. To study the development of the incudo-mallear joint in human embryos and fetuses.

[Laparoscopic cystoprostatovesiculectomy and ureterosigmoidostomy. Experimental surgical model].

The authors have performed 26 experimental laparoscopic cystoprostatovesiculectomies in pigs, 17 of which were followed by ureterosigmoidostomies, also laparoscopically. Using a 10 mm trocar at the umbilical level (optics), another 10 mm at the hypogastric level (pliers and titanium staple applicator), a third 5 mm in left iliac fossa (pliers) and another 5 mm in right iliac fossa (electric shears), cystectomy is performed with a routine technique: stapling and section of deferents, umbilical arteries, vesical lateral pedicles and prostate-seminal pedicles. A double ligature precedes the section of the urethra in the pelvian fundus.

[Laparoscopic nephrectomy: experimental surgical model].

Presentation of 39 experimental laparoscopic nephrectomies carried out in pig. With the animals under general anaesthesia and using 4 laparoscopic trocars the authors dissected the kidney and clipped separately the ureter, renal arteria and vein. Once these elements were sectioned, they placed the kidney inside a small plastic pouch (introduced within the peritoneal cavity through one of the trocars) and after extracting its neck through the hole in the abdominal wall created by the 11 mm trócar, they performed different intra-abdominal fragmentation procedures on the extirpated kidney.