CO2 laser peeling associated with the 'round lifting' technique.

This paper evaluates the use of CO2 laser peeling as an isolated procedure or associated with the 'round lifting' technique for correction of the aging face. This technique, as described by the senior author, allows for the treatment of signs of facial aging while maintaining anatomical structures. The article reviews the philosophy and evolution of the classical surgical procedures in an overall experience of 7477 patients operated on at the Ivo Pitanguy Clinic, and emphasizes how the CO2 laser resurfacing has enhanced the aesthetic result in selected cases.

[Medullary and intracranial metastases of myxopapillary ependymoma].

After a brief introduction about the clinical, histological and therapeutic characteristics of myxopapillar spinal ependymoma of cone medullar and filum terminale, three cases with medullar and intracranial seeding of myxopapillar spinal ependymoma are retrospectively reviewed. Surgical resection was total in the child and partial in the adult cases and the histological results were myxopapillar. The diagnosis was made by CT and MRI between 1-2 months before surgical treatment.

Transnasal removal of a biliary endoprosthesis with percutaneous transhepatic biliary catheter replacement.

The authors describe a novel fluoroscopically guided transnasal technique for removal of an endoscopically placed endobiliary prosthesis (EBP). A case in which the approach was applied is used to demonstrate its indications, clinical utility and possible benefits. The procedure entails simultaneous percutaneous replacement of the EBP with an internal/external biliary catheter over a through-and-through transhepatic/transnasal access wire.

Use of a puncture needle for recanalization of an occluded right subclavian vein.

We report a patient in whom we used a puncture needle to initiate percutaneous recanalization of a chronic occlusion of the junction between the right subclavian vein and the right brachiocephalic vein. Under fluoroscopic guidance, an 18-gauge needle was used to puncture the right subclavian vein. When contrast material injected through the needle confirmed intravascular location, the needle was advanced until it deflected and perforated an occlusion balloon target positioned within the right brachiocephalic vein.

Effect of electrical stimulation on post mortem biochemical characteristics and quality of Longissimus dorsi thoracis muscle from buffalo (Bubalus bubalis).

High voltage electrical stimulation (700 V, 1400 V peak, pulses 1 s on/1 s off, 60 Hz, 2 A) on buffalo carcasses resulted in a significantly more rapid pH fall in Longissimus dorsi thoracis muscle when compared to non stimulated controls (p < 0.01), during the first 24 h after slaughter. The IMP ATP ratio on the same period showed a much more rapid increase for the stimulated muscles (1.

[The role of angiotensin-converting enzyme inhibitor (captopril) on the mechanism of hypoxic pulmonary vasoconstriction. Experimental study in dogs].

In order to evaluate the action of an angiotensin converting enzyme inhibitor (Captopril) on the pulmonary hypoxic vasoconstriction, twenty one mongrel dogs were studied in two groups: group I with hypoxia, group II with normoxia. The dogs were anesthetized, intubated, and had their femoral vein and artery cannulated for blood-gas sampling and pressure records. They were mechanically ventilated with hypoxic gas mixtures (12.

Comparative studies of Metarhizium anisopliae and Tolypocladium cylindrosporum as pathogens of mosquito larvae.

Mosquito fungal pathogens, Metarhizium anisopliae and Tolypocladium cylindrosporum, were compared with regard to virulence against the larvae of Aedes aegypti, Anopheles stephensi and Culex pipiens. Culex pipiens larvae were much more susceptible to M. anisopliae conidia than An.

[Protection of mice by trehalose dimycolate against lethal infection by Trypanosoma cruzi].

Four weekly injections of 50 micrograms of trehalose dimycolate (TDM) in FIA protect 40% of the Mice against a lethal infection by Trypanosoma cruzi; under the same conditions MDP (muramyldipeptide) has only a very slight effect.