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Biomedical subjects

A Vanetti

Publications and source records attributed to A Vanetti.

At least 55 records · Page 3Linked to original sources
PubMed1977

[New open heart technic of locating the bundle of His].

The use of a system of electronic potentials for locating the bundle of His during open heart operations has provided a means for localising the conducting pathways so that they are not damaged during surgery. The designing of a special apparatus for this purpose has made it especially suitable for use in man, and it increases the ECC time by only a few minutes. The apparatus consists essentially of electrodes designed specially for the purpose, a cardiac stimulator and a calibrated oscilloscope with an electrostatic memory. The effectiveness of this technique has been confirmed in a preliminary series of 15 cases.

Action Potentials↗
PubMed1975

[Indications for permanent electrosystolic pacing in arrhythmia revealed or aggravated by treatment].

The authors report 25 cases of patients, average age 67 years with severe coronary or valvular heart disease, with conduction disorders. The conduction disorder occurred alone in 8 cases and was associated with a disorder of excitability in 17 cases. It was either obvious, as in 14 cases, or latent, as in 11 cases, and precipitated by various forms of treatment, the disadvantage of which was the negative dromotrope effect. This treatment was prescribed for permanent resting angina (amiodarone and prenylamine), heart failure (digitoxin) or excitability disorder (beta-blockaders or procainamide). 11 patients had one or several fainting attacks. Permanent electro-systolic pacing with stimulation on demand, is necessary in all patients to palliate the consequences of treatment. In 11 cases out of 25, prior temporary pacing permitted the authors to assess the efficacy of treatment. The high post-operative mortality (40%) is not due to the apparatus but depends on the severity of the coronary heart disease or heart failure in these patients, In 60% of cases, the result of stimulation was excellent and was maintained permanently.

Aged↗
PubMed1975

[Surgical treatment of severe forms of atrioventricular canal].

Report of a personal experience of surgery in severe forms of artrio-ventricular canal. These include on the one side complete forms. They have in common clinical and haemodynamic characters which make difficult their recognition before their surgical exploration. In the forms with very intense mitral incompetence and equal pressures on the right and left sides, the indication for operation is often a delicate procedure. hen a marked felt-tto-right shunt persists, when there is no excessive peripheral arterial saturation when the PR/SR ratio is lower than 0.7, surgery should be performed. The middle-term results of the patients who survived the operation are on the whole very encouraging, and justify the resort to surgical repair, the more so that the spontaneous prognosis of the disease is often a severe one.

Blood Pressure↗
PubMed1975

[Aneurysm of the superior vena cava, Apropos of 1 case].

Report of the case of a seventeen-year-old man in whom was discovered in the course of a systematic X-ray examination of the thorax a shadow of the right upper mediastinum. The variability of the pictures in relation with the upward or supine position, suggest the diagnosis of a vascular tumour, which was confirmed by angiocardiography. Towards the end of this examination there was a cardiac arrest with coma, which was suggestive of the probable diagnosis of thrombo-embolic accident, and the operation was undertaken under extracorporeal circulation. It made it possible to extract various recent clots and to perform a reconstitutive endo-aneurysmorrhaphy. The post-operative period was favourable, both from the neurological and haemodynamic points of view.

Adolescent↗