1,721,028 research outputs found
Ruolo dell’eco color Doppler e dell’analisi flussimetrica nella diagnosi e nel follow-up della malattia di Graves.
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Role of Doppler color ultrasonography and of flowmetric analysis in the diagnosis and follow-up of Grave's disease
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Valutazione eco-color-Doppler degli innesti di tessuto splenico e delle milze accessorie
No full textEmbolisation of arteriovenous intrahepatic fistulas associated with diffuse haemangiomatosis of the liver. Report of a case in an adult and review of the literature
No full textDiffuse hepatic haemangiomatosis is rare in adults. Association with high output intrahepatic arteriovenous fistulas has been described. To avoid heart failure complications, treatment is essential. The second case in the literature, treated with repeated transcatheter arterial embolizations (TAE) but complicated by infection of multiple haemangiomas and by Kasabach-Merritt syndrome, is presented. Complications were due to the persistent presence of haemangiomas within the liver, where an impressive collection of platelets and a superinfection were observed. Therefore, to treat arteriovenous fistula-related problems and to prevent possible complications due to persistence of the haemangiomas, surgical removal should be preferred over embolisation
Renal cysts: can percutaneous ethanol injections be considered an alternative to surgery?
No full textAIM:
To evaluate the efficacy of a new sclerotization technique with pure ethanol in the treatment of symptomatic renal cysts.
PATIENTS AND METHODS:
Fourteen patients having renal cysts with a meant diameter of 10 (range 5-15) cm were treated. Our technique includes: ultrasound-guided percutaneous puncture with an 18-gauge needle, positioning of a 5-Fr catheter, complete cyst fluid aspiration, injection of pure alcohol equal to 15% of the initial cyst volume, and alcohol aspiration after 90 min. The procedure was repeated eight times within 5 days. The patients were followed up by ultrasound and/or CT scan for 1 year.
RESULTS:
All patients became symptom free. Follow-up showed a progressive reduction of the cyst diameter in all cases. Three cysts only (in 2 patients; cyst diameter <2 cm) persisted after 12 months. No significant complications were observed.
CONCLUSIONS:
In our experience, injections of pure ethanol in renal cysts, repeated after some days, were effective in eliminating recurrences and related symptoms. The procedure was not associated with significant complications. Our findings suggest that it be considered the first-choice procedure in the treatment of renal cysts, due to the good results and the low cost of ethanol
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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