Biomedical subjects
Publications and source records attributed to G C Canalis.
The authors report the results about the staging of renal carcinoma using "angio-CT". The diagnostic accuracy, the sensibility, the specificity, in 42 patients, have been evaluated and compared with the subsequent operative or authoptic diagnosis. The meaning of this study is the comparison of the results obtained by this method in front of other examinations, especially artheriography.
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An examination of some anatomopathological and clinical aspects of hydronephrosis and its causes in childhood is followed by the description of a personal case marked by discrepancy between the anatomical and pathological picture of giant hydronephrosis and the complete absence of symptoms, resulting in delay in its clinical detection. Stress is laid on the fact that, although surgical reconstruction of the pyeloureteral junction is possible, a very great number of nephrectomies still have to be performed owing to the tardy discovery of these lesions.
High quality arteriographic studies of the iliopudendal vascular tree are mandatory for the correct examination of arteriogenic impotence patients before revascularization procedures. Twenty-three patients with chronic erectile dysfunctions due to stenosis or occlusive arteries diseases of the iliac arteries were treated with percutaneous transluminal angioplasty (PTA) in our Department. A positive clinical result was obtained in 15 of 23 cases (65.2%). The maneuver was successful in 8 of 14 patients with vascular lesions of the common and/or external iliac artery (57%). The erectile dysfunction was resolved in 4 of 6 patients with stenosis of the external iliac artery associated with a stenosis of the hypogastric artery (66.6%). The erectile dysfunction was also resolved in 3 patients with a single vascular lesion in the hypogastric artery. No major post-angioplasty complications were observed. PTA is a repeatable and not very invasive method with a low complication rate and could represent a valuable alternative to surgical revascularization in the patients with associated impotence and claudication of leg and hip. Moreover, it makes the treatment of choice in the patients with erectile dysfunctions due to isolated lesions of the hypogastric arteries.
Eleven patients with benign postoperative colonic strictures were treated with balloon dilatation November, 1990, through November, 1995. The anastomosis was sigmoidrectal in 7 patients and colocolic in 4 patients. All patients were submitted to contrast enema and colonscopy to assess the site, shape, grade and length of the stenosis. Biopsy was performed in 7 patients whose strictures had developed 2 months or more postoperatively. The dilatation was performed with 20-mm balloon catheters in the strictures developed 30 days postoperatively, to avoid any complications, and with 30-mm balloon catheters in the other cases. Balloon dilatation was performed under fluoroscopic guidance, with no-drug treatment. The procedure was well tolerated by all patients. One or two dilatation sessions were performed in ten and one patients, respectively. No complications were observed. The results were satisfactory in all cases, with symptom resolution. Follow-up included clinical, endoscopic and radiologic assessment. At follow-up, the technical result was good in all patients and the symptoms were completely relieved. In our experience, radiologically-guided balloon catheter dilatation proved to be an easy, safe and effective tool to treat benign postoperative colonic strictures.