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Biomedical subjects

O Alfieri

Publications and source records attributed to O Alfieri.

At least 145 records · Page 8Linked to original sources
PubMed1977

Open heart surgery in the first six months of life.

Intracardiac repair of a variety of cardiac anomalies was performed in 104 infants aged 10 days to 6 mo, presenting with severe hypoxia and/or intractable heart failure. Thirty-eight patients (33 less than three mo of age) did not survive the operation or died during the first postoperative month. Above 6 mo of age, correction of heart defects is often carried out on an elective basis, and results are more favorable. A more convenient choice between corrective and palliative procedures is suggested to achieve better results in the difficult group of patients who require surgery within the first 6 mo of life.

Aortic Valve Stenosis↗
PubMed1977

[Tricuspid atresia: hemodynamic and surgical considerations (author's transl)].

Recently some patients with tricuspid atresia underwent physiological correction, as indicated by Fontan, as an alternative to classical procedures. The aims of the hemodynamic and contrastographic study are illustrated and exemplified, in view of the type of surgery. 49 patients underwent palliative operations: 47 shunts and 2 banding. The most frequent procedure was the Waterston shunt. The total mortality was 10.2%, but no deaths occurred after the third month of life. Finally, the future and the limits of "total" correction are discussed.

Age Factors↗
PubMed1975

Thermodilution cardiac output measurement in infants and small children following intracardiac surgery.

A modified catheter has been used in conjunction with a thermodilution cardiac output computer for postoperative assessment of cardiac function in infants and children. Because of the small amount of fluid required for each determination and the simplicity of the technique, serial measurements can be done safely. Its use has contributed to the early detection of low output states. It has also proven to be a useful tool for estimating the optimal heart rate in each patient and for assessing the effectiveness of therapeutic measures.

Cardiac Catheterization↗
PubMed1975

A new instrument for surgical exposure of subaortic and subpulmonic stenosis.

An instrument for providing adequate visualization of the subvalvular area during repair of intracardiac defects is described. Essentially a type of modified nasal speculum, the instrument has proved helpful in performing resections in both subaortic and subpulmonic stenoses by exposing a wider surgical field.

Aortic Stenosis, Subvalvular↗
PubMed1975

[The current role of palliative operations in the surgical treatment of tetralogy of Fallot. A report on 172 operated cases (author's transl)].

172 consecutive palliative operations in patients with Fallot's tetralogy are presented. 19% of the patients were aged less than 6 and 45% less than 12 months. The overall mortality was 5.8%, but has been recently reduced with the improvement of anaesthesiologic and technical experience. In fact, during the last two years, 69 Waterston shunts (33 under 12, and 17 under 6 months of life) were performed with no deaths. On the grounds of this experience, indications of the different types of systemic to-pulmonary artery shunts are discussed, as well as problems related to the choice between one-stage and two-stages surgical correction. The authors' opinion is that palliative procedures still play an important role in the treatment of Fallot's tetralogy, although the future approach may well be early total correction. In their experience, the last approach is restricted to children over 18-24 months of life with favorable anatomy, and to all patients over 4 years of age.

Heart Arrest↗