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Biomedical subjects

S Cavaliere

Publications and source records attributed to S Cavaliere.

44 records · Page 3Linked to original sources
PubMedDate not supplied

[Melanoma metastatic to the trachea and nasal cavity: description of a case and review of the literature].

Secondary tumors of the trachea are exceedingly rare, only 14 cases having been reported in the literature. Moreover, metastatic involvement of naso-paranasal cavities can be considered quite unusual. Approximately 150 cases have been drawn from the literature, most of which presented a metastatic deposit from a renal adenocarcinoma. Report is then made of a case of cutaneous melanoma metastatic to the trachea and nasal cavity. The tracheal lesion was repeatedly treated with Nd Yag laser, whereas no treatment was considered eligible for nasal metastasis. The patient succumbed to the tumor 16 months after diagnosis of tracheal involvement had been made. The tendency for malignant melanomas to metastasize to distant organs via the bloodstream is well known, yet trachea and nasoparanasal involvement by metastatic melanoma has been reported, respectively, in only three and six cases, including the present one. Prognosis is unfavorable due to the unusual coexistence of metastases to other organs and the lack of an adequate treatment.

Humans↗
PubMedDate not supplied

[The transcutaneous method of monitoring partial pressure of O2 and CO2 during laser surgery of the trachea and bronchi].

Anesthesia during Nd-YAG laser resection of the airways necessitates continuous O2 and CO2 monitoring. Although only partial, monitoring may be performed using a transcutaneous method utilising Clark's electrode to measure O2 and Stowe-Severinghaus' electrode to assess CO2 on the skin surface. The paper evaluates the advantages and limits of this form of monitoring during anesthesia in 85 patients undergoing laser resection of the airways. In conclusion, in spite of the fact that it is currently impossible to build up a complete picture of blood gas status from a single transcutaneous finding, the use of the transcutaneous method increases the level of safety of the operation as a whole.

Adult↗
PubMedDate not supplied

Behavioral effects of deprenyl in aged rats.

The effects of an inhibitor of MAO-B, deprenyl, have been studied in aged male rats. Subcutaneous (s.c.) injection of deprenyl was followed by a facilitated acquisition of active avoidance behavior and a facilitated retention of passive avoidance response in a dose-dependent manner. Ambulation and rearing of aged rats in an open field were increased by deprenyl. No effect was found on grooming behavior. Apomorphine-induced stereotypies were potentiated and haloperidol-induced catalepsy was inhibited by deprenyl. Some elements of sexual behavior, i.e. latency to mounting and intromission and frequency of mounts and intromissions, were improved by deprenyl. Furthermore, deprenyl reduced the immobility of aged rats in a "despair" test, suggesting an antidepressant activity. Deprenyl seems to be effective in correcting some of the behavioral deficits of aged animals. Its behavioral effects can be related to the inhibition of cerebral MAO-B.

Age Factors↗
PubMedDate not supplied

[Clinical problems about microbiological findings in pneumology (author's transl)].

Identification for clinical purposes of the etiological germs in individual cases of bronchopulmonary not tuberculous infections is usually very hard. Sometimes, particularly in acute cases, microbiological counts in sputum as in tracheobronchial secretions and exudates may be useful. In some chronic cases an amount of particular bacteria in tracheal (transcutaneous) secretion larger than in sputum is to consider an etiological sign.

Acute Disease↗