Biomedical subjects

G Previtali

Publications and source records attributed to G Previtali.

4 recordsLinked to original sources

PubMed1978

[Current therapeutic indications and possibilities in prolonged respiratory insufficiency (collective review) ].

The article provides a synthetic review of the most current problems of treatment of acute respiratory insufficiency refractory to standard and conventional therapeutic remedies using extracorporal membrane gas exchangers. On the basis of a review of the literature on the subject, the advantages and disadvantages of each main type of oxygenator are considered and critically evaluated with regard to metabolic, haemodynamic and circulatroy activity and the repercussions of each resuscitation technique on haemocoagulation.

Extracorporeal Circulation↗

PubMed1976

[Problems of anesthesia and resuscitation in drepanocytic anemia].

A study was made of anesthesiological and resuscitation problems in 18 patients suffering from drepanocytic anemia. An examination of the results showed that the anesthesiological problems do not so much concern selection of the anesthetic as a knowledge of the physiopathology of this disease, i.e. the tendency to bronchopulmonary complications as a result of the increased viscosity of the blood, the increased mechanical fragility of the erythrocytes, and erythrostasis, with consequent rise of ischaemic necrosis and damage to the various parenchymas. It was also observed that pulmonary complications occurred more frequently in preoperatively transfused patients.

Anemia, Sickle Cell↗

PubMed1976

[Renal resistance in ethrane anesthesia].

The indices of renal functionality are studied during the course of ether anesthesia in order to ascertain the behaviour of the kidney subjected to narcosis with this drug. A sharp reduction in the minute volume of F.G. and P.R.E. is evidenced, together with an increase in renal resistances, especially as regards the efferent sector. These changes, which are established at the start of anesthesiological treatment, tend to decrease in intensity as narcosis continues. This picture is interpreted as being due to the concomitant action of two factors: a decrease in cardiac output on the one hand, and an increased incretion of catecholamines leading to renal arteriolar vasoconstriction on the other.

Adult↗

PubMed1976

[Circulatory flow during anesthesia with enflurane].

The rebreathing technique was used to study the behaviour of the circulatory flow in patients operated under ether anesthesia. It was observed that during ether narcosis the circulatory flow values show a fair drop at the readings made 30' and 45' after the inductive period. 60' after the start of ether narcosis the circulatory flow values show a tendency to increase, and these observations are accentuated in the readings taken at 75' and 90'.

Adult↗