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Biomedical subjects

A Dolara

Publications and source records attributed to A Dolara.

At least 73 records · Page 4Linked to original sources

A-V block by an overdose of Clonidine.

The case of a young addict woman, chronically treated with Clonidine, in whom an overdose of the drug determined transient S-A and A-V conduction disturbances is reported. Such effects have been attributed to vagal hyperactivity and must be kept in mind when the drug is administered to patient of old age, with cardiac disease, or in association with digitalis. The treatment of choice is represented by forced diuresis induced either by osmotic diuretics of furosemide.

Adult↗

[Citation Index].

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Abstracting and Indexing↗

[The evaluation of pulmonary artery pressure by suprasternal notch M-mode echocardiography].

Four hundred subjects without any sign of cardiac disease were studied by M-Mode echocardiography both by the parasternal approach, in order to record the pulmonary valve and by the suprasternal approach, in order to visualize the aortic arch and right pulmonary artery. Successful recordings were obtained respectively in 70.2% and 92.7% of the attempts. Furthermore we examined with both approaches, 20 patients (pts) with rheumatic mitral valve disease and mean pulmonary artery pressure (mPAP) greater than 20 mmHg (group A), 20 pts with rheumatic mitral valve disease and mPAP less than or equal to 20 mmHg (group (B) and 20 healthy subjects, homogeneous for age and sex (group C). In group A, the pulmonary valve was well recorded by the parasternal approach in 14 pts (70%). Only 9 (45%) showed a diagnostic pattern of pulmonary hypertension. By suprasternal echocardiography we measured the aortic arch/right pulmonary artery end-diastolic ratio: this index, successfully obtained in all pts of group A, B and C, was significantly (p less than 0.001) lower in group A versus group B and C and was significantly correlated (r = 0.84) with mPAP. We, therefore, conclude that the suprasternal M-Mode echocardiographic evaluation of the pulmonary artery is technically easier than the parasternal visualization of the pulmonary valve. Furthermore, it seems to be able to detect more accurately, at least in a selected population, pts with pulmonary hypertension.

Adult↗

Spontaneous reversion to normal sinus rhythm after prolonged atrial fibrillation.

Two patients are reported in whom there was a spontaneous reversion to normal sinus rhythm after atrial fibrillation had persisted ten and fourteen years respectively. One of these patients was an exception to the general rule in as much as there was a clinical improvement when sinus rhythm appeared again. The mechanism underlying such changes in rhythm is not yet fully understood.

Atrial Fibrillation↗

Echocardiographic pitfalls in the diagnosis of pulmonary hypertension.

The M-mode echocardiographic pattern of pulmonary arterial hypertension was found in a patient with patent ductus arteriosus and normal pulmonary pressure at catheterization. It is suggested that in this case, as in others reported in the literature, not only pressure but also the pattern of pulmonary blood flow may influence pulmonary valve position in systole and accordingly its echocardiographic representation.

Adult↗

[Epidemiology of the cardiovascular malformations. II. Follow-up of 337 newborn in 1975-1980 at the Maternity of Florence (author's transl)].

337 newborn, in whom a cardiovascular malformation was diagnosed at birth by criteria previously reported, were followed for variable period of time from January 1975 to December 1980. They came from a population of 32,561 live births which occurred at the Maternity of Florence in the same period. The diagnosis was confirmed by angiography, surgical procedure or autopsy in the 15 per cent of the whole group. Fifty-nine babies (18 per cent) with one exception died within the first year of age. Signs and symptoms referable to the cardiovascular malformation at birth disappeared during the follow-up period in 33.8 per cent of cases. Total incidence lowered from 10.3 per thousand at birth to 6.8 at the end of the follow-up. The percentage of normalized babies correspond to the frequency with which ventricular septal defects close spontaneously in the first period of age and accounts for the disappearance of this malformation from the first place of relative incidence of cardiac malformations in adults.

Child, Preschool↗

Aortic regurgitation in newborn.

Clinical signs of aortic regurgitation were noted after birth in an infant who died suddenly at the age of 18 months. Congenital malformation of the aortic root with an aneurysm of the right aortic sinus and disconnection of the corresponding cusp were found at necropsy.

Aorta↗

[Familial long QT interval and sudden death (author's transl)].

A family in whom two brothers, a sister and the father presented a long QT interval is reported. The father died suddenly at the age of 37. The opportunity of a more careful research of the syndrome, now underdiagnosed, is underlined in view of the curability such disease.

Adams-Stokes Syndrome↗