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Biomedical subjects

S Ricci

Publications and source records attributed to S Ricci.

At least 199 records · Page 11Linked to original sources
PubMed1985

[Comparative results in the carotid region. Venous or arterial digital angiography?].

A comparative evaluation between Digital Venous (DV) and Arterial (DA) studies of carotid arteries has been carried out in our institution in the last two years. DV study, in our experience, only in fourty percent of the cases shows good details (i.e. of true diagnostic value); this rate decreases to fifteen-twenty of intracranial sector, while DA offers optimal results in eighty percent and more of the patients. DV studies, highly invasive on a pharmacological point of view, based on the contrast medium amount, must be reserved only to surgical follow-up studies and patients with femoral/brachial bilateral occlusion, that involves technical impossibility for arterial catheterization.

Angiography↗
PubMed1985

[Digital subtraction angiography (DSA) of the renal-adrenal area. Methods of use and indications].

Our experience on 371 patients studied with DSA for reno-adrenal pathology in the last two years is reported. The purpose of this study was the evaluation of real possibilities of DSA in comparison with conventional angiography, particularly to specify diagnostic space of venous versus arterial approach in this region of interest. In our experience, DSA by venous approach is indicated only as a screening method for nefrovascular hypertension or post-surgery, post-PTA and post-embolization controls; in all other cases, DSA by arterial approach is preferable for its superior diagnostic accuracy and lesser pharmacological invasivity, in comparison both with venous DSA and conventional angiography.

Adrenal Gland Diseases↗
PubMed1985

[Digital panangiography. Possibilities of digital angiography in estimating multifocal atheromatous vascular diseases].

Results obtained on 431 patients studied during thirty months (February '83-June '85) with DSA-whole body angiography are reported. On the basis of statistic evaluation, PAN-DSA certainly appears the best choice, especially with combined use of 150 mgI/ml and 300 mgI/ml contrast medium. A highly significant incidence of athero-sclerotic lesions found on target-territories, even in the presence of monofocal symptoms, suggests global radiological study (PAN-DSA) as indicated whenever diffuse vascular pathology is suspected.

Angiography↗
PubMed1984

[Circulating immune complexes in patients with lymphoproliferative and myeloproliferative diseases].

Circulating immune complexes have been studied with a competitive immune-enzymatic method on 9 controls, on 34 patients with lymphoproliferative disease (41.6 +/- 26.8) and in those with myeloproliferative disease (62.1 +/- 30) have been found significantly higher than in controls (20.3 +/- 14.1). The percentage of incidence of circulating immune complexes with values greater than 35 (normal value greater than 35) is found to be 58.8% in lymphoproliferative disease and 77.7% in myeloproliferative disease. Higher values of circulating immune complexes have been observed in patients with a depressed count of circulating monocytes, of lymphocytes with a dot-like alpha-naphthyl-acetate-esterase reaction and of nitroblue tetrazolium positive granulocytes, suggesting that circulating immune complexes can modulate cellular immune response as blocking factors.

Adolescent↗
PubMed1982

Sustained haemodynamic and clinical effects of captopril in long-term treatment of severe chronic congestive heart failure.

1 The angiotensin-converting-enzyme inhibitor captopril is known to produce beneficial haemodynamic effects in patients with chronic congestive heart failure. 2 Twelve patients with chronic congestive heart failure were conventionally treated with digitalis and diuretic therapy plus oral captopril (75-150 mg/day), and 14 patients were used as a control group. 3 There was no improvement in functional and haemodynamic values in the controls, but the patients treated with captopril showed a significant functional improvement (increase of exercise time and improvement in New York Heart Association functional class), a definitive decrease in systemic vascular resistance (20%), and a significant increase in the cardiac index and ejection fraction (18% and 28% respectively).

Aldosterone↗
PubMed1981

[Plethysmographic researches on the beginning and duration of the pharmacological action of an isosorbide dinitrate drugs with prolonged action (author's transl)].

Taking into consideration a previous work, where we experimented the pharmacological action of different products of nitrite retard and from which resulted the absolute superiority of isosorbide dinitrate, we considered interesting to repeat the experimentation with a new form of isosorbide dinitrate characterized by an action duration more prolonged in the time owing to the particular freeing of the active principle. In 20 patients free from peripheral vasculopathy it was enregistered the rheogram with derivation back-feet-big toe in base condition and at 1st, 3rd, 5th and 10th hour from the administration of Nitrosorbide Retard 20 mg. The product action, put in evidence by the appearance of the typical pulse by nitrite, begins the first hour, it reaches the maximum at the 5th hour on average and it clearly lasts until the 10th hour. Therefore it is demonstrated the practical usefulness of this product in the daily clinical medicine considered its characteristics of action rapidity, duration and steadfastness.

Adult↗