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Biomedical subjects

N Vasile

Publications and source records attributed to N Vasile.

At least 91 records · Page 5Linked to original sources

[Left coronary artery arising from the pulmonary artery : a report on two cases of this anomaly in adults (author's transl)].

The presence of an abnormal origin of the left coronary artery from the pulmonary artery was observed in two adults. The clinical, radiological, and hemodynamic characteristics of this disorder are described. The author emphasizes the value of exploring these malformations by means of a strict technique, including the injection of a large quantity of contrast medium.

Adult↗

Surgical management of acute dissections involving the ascending aorta. Early and late results in 38 patients.

Thirty-eight patients (32 men and six women, mean age 48.1 years) were operated upon for acute dissection involving the ascending aorta. The surgical procedure included multiple peripheral arterial cannulations, resection of the initial intimal tear if found (35 cases), and obliteration of the false channel by double cuffing with Teflon of the two layers of the dissecting process proximally and distally. When present (29 cases), aortic regurgitation was usually (21 cases) managed by conservative remodeling of the aortic anulus; 34 prosthetic replacements of the ascending aorta and four replacements of the arch were achieved. The operative mortality was 7.9% (3138) and the overall hospital mortality was 23.7% (9138). Nonfatal complications occurred in 11 patients (29%). There were three late deaths (10.3%). Mean follow-up was 3.4 years (2 months to 8 years, 8 months). Twenty-three (88.5%) of the 26 patients were asymptomatic. Contrast tomodensitometry was performed in 14 patients; in type II (two patients), the aorta was normal; in type I (12 patients), residual abnormalities were noted: patency of the false channel (10 cases), aneurysmal dilatation (seven cases), and reduction of the true lumen by the false channel (four cases). These results emphasize the need for scrupulous long-term follow-up in surgically treated aortic dissections.

Acute Disease↗

[Contribution of scanning to the diagnosis and evaluation of acquired anomalies of the aorta (author's transl)].

Acquired anomalies of the aorta represent at the present time an excellent indication for scanning in vascular diseases. This form of examination permits perfect visualization of aneurysms, wherever they are located, frequently enabling a tumour in the vicinity of the aorta to be eliminated. It provides an exact topographic picture of the lesions with a quantitative indication of their height. The detection of a peri-aortic hematoma facilitates the diagnosis of cracking of the aneurysm. Scanning has a far from negligible contribution to make to the diagnosis of aortic dissections. The visualization of intraluminal calcifications at a distance from the wall, of a floating membrane or a false channel provides confirmation of the diagnosis and suggests the possibility of an angiography. As an additional bonus in the case of acute ischaemia of the lower limbs, scanning permits an easy and inexpensive diagnosis of a complete thrombosis of the aorta and an indication of its extent. Computerised scanning as a non-invasive and easily repeated examination, has numerous and widely varying indications in the pathology of the aorta. Its potential contribution in certain cases appears to be so great as to envisage its delaying angiography.

Aneurysm↗

Computed tomography diagnosis of renal angiomyolipoma.

Six computed tomography examinations were performed on four patients: two of them had tuberous sclerosis, and the other two had solitary angiomyolipomas. Computed tomography is an easy way of diagnosing tumoral hemorrhages and thus facilitates the supervision of patients with tuberous sclerosis. In two patients, the authors observed dense masses that might have indicated cartilage deposits.

Adult↗

Computed tomography of aortic dissection.

Fourteen patients suspected of having dissection of the thoracic aorta, two with possible extensions into the abdomen of previously diagnosed dissection of the thoracic aorta, and one patient who had undergone surgical repair of an aortic dissection were examined by CT (computed tomography). Findings included localized increase of the aortic caliber, displaced intimal calcifications, intimal flaps, and false channels. These findings were confirmed by angiography or at necropsy. Two patients in whom CT showed no abnormalities had a favorable outcome. The authors conclude that CT is the examination of choice in removing doubt from the clinical diagnosis of aortic dissection.

Aortic Dissection↗

[Computerized axial tomography in diagnosis of congenital heart diseases. Preliminary report].

Transverse sections of the heart and great vessels may be obtained by tomodensitometry using an exposure time short enough to carry out the investigation during apnoea, and an infusion of contrast medium. The definition is good enough for the investigation to be considered as a useful adjunct to the normal investigations in complex congenital cardiac abnormalities. All measurements are instantaneous, including the study of pulmonary density which allows assessment of the pulmonary vascularisation.

Adolescent↗

[Aortocoronary bypass permeability explored by tomodensitometry. Preliminary study].

The patency of 24 aorto-coronary grafts was studied by tomodensitometry. --16 out of the 18 bypasses examined within the two weeks following surgery were seen. --4 older bypasses were not visible, either by scanner or by angiography and were therefore occluded: two more, performed more than a year previously, were patent on tomodensitometric examination. The interpretation of the results, discussed taking into account the small number of angiographic check ups does not permit any formal conclusion as to the validity of the procedure. The results of this technique seem satisfactory and quite comparable with other non invasive methods used in the study of aorto-coronary grafts.

Adult↗