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J Struyven

Publications and source records attributed to J Struyven.

At least 127 records · Page 7Linked to original sources
PubMed1986

Mesenteric vein thrombosis: early CT and US diagnosis and conservative management.

We report a case of isolated superior mesenteric vein thrombosis with acute ischemic bowel disease, diagnosed early by a screening ultrasound scan of the upper abdomen and definitively assessed by computed tomography and angiography. This report stresses the contribution of cross-sectional techniques in the early diagnosis and management of venous occlusive disease of the small bowel.

Female↗
PubMed1986

Pharmacocavernometry-cavernography in impotence.

Cavernometry and cavernography before and after injection of papaverine into the corpus cavernosum were performed in five psychogenically impotent patients and in 30 patients with organic impotence demonstrated by penile plethysmography. The flow necessary to provoke an erection in the psychogenic patients and in the 20 patients without venous leakage ranged from 80 to 120 ml/min and was reduced to 20 to 65 ml/min after injection of papaverine. In the 10 patients with venous leakage the flow necessary to create an erection ranged from 160 to 250 ml/min; after injection of papaverine it decreased to 50 to 120 ml/min and remained higher than in the two former groups. Although cavernography-cavernometry with papaverine injection correlates better with the physiological status of the erectile mechanism it provides no more information than when used alone.

Adult↗
PubMed1986

Impotence: evaluation with cavernosography.

Many patients with organic impotence do not have abnormalities of the penile arterial system. To determine the function of the venous system in erection, cavernosography was performed in 187 impotent men during artificial induction of erection with monitoring of intracavernous pressure and inflow. To evaluate the mechanism of active erection, 69 patients also received intracavernous injections of papaverine. Venous leakage was found in 88 patients. In these patients, a higher than normal rate of flow of diluted, heparinized contrast medium was required to initiate and maintain erection. Opacification of the prostatic plexus also occurred during erection in these patients. In all patients who received papaverine, the flow rates required to initiate and maintain erection decreased. The authors conclude that cavernosography and cavernometry are essential in the work-up of impotence and that papaverine may be helpful in elucidating the active mechanism of erection.

Adolescent↗
PubMed1986

Subclavian vein thrombosis: a frequent complication of subclavian vein cannulation for hemodialysis.

Subclavian vein cannulation was suggested as a temporary vascular access for hemodialysis since one of its advantages was considered to be no damage to blood vessels. As we observed six patients with symptomatic subclavian vein thrombosis among 148 patients having received subclavian vein cannulation for hemodialysis, we systematically performed subclavian venogram in 42 asymptomatic patients selected on the basis of a history of previous subclavian vein cannulation. Venograms were performed 15.7 +/- 8.9 months after the removal of the last catheter. Eight patients (19%) had complete thrombosis or severe stenosis of the subclavian vein while six patients (14%) had minimal luminal defects. Considering together the 48 patients, the group with thrombosis or severe stenosis (group 1, n = 14) was compared with the group with minimal defects or normal venograms (group 2, n = 34). In group 1, as compared with group 2, there were more female (64% vs 32%, p = 0.02), more cannulations per vein (1.87 +/- 0.35 vs 1.32 +/- 0.08, p less than 0.05) and more cumulative days of cannulation per vein (35.1 +/- 7.9 vs 24.4 +/- 1.1, p less than 0.001). No difference between the two groups was seen for the number of catheter infections, the number of catheters with poor flow or obstruction, the coagulation screening of the patients or the time-length between the removal of the last catheter and the venogram study. Two of the initially asymptomatic patients developed later on clinical problems related to the subclavian vein thrombosis. We conclude that the subclavian vein cannulation leads to significant damages of the vessels, excluding a whole arm, for future vascular access in some patients.

Catheterization↗
PubMed1986

[Venous exploration of impotence of vascular origin].

Vascular origin accounts for more than 25% of cases of disturbances of erection. Venous pathology may explain the majority of erectile dysfunctions in patients with normal arterial anatomy. We have performed cavernography in 115 patients with monitoring of intracavernous pressure. Nocturnal plethysmography was recorded in all cases to prove the organic etiology of the erectile dysfunction. Cavernography was realized after puncture of both corpora cavernosa by two microcatheters (19-21 G). The intracavernous pressure was recorded through 1 of them and the contrast medium infused through the other. The contrast medium is infused at a rate of 80-120 ml/min. until the penis appears erect. The simultaneous recording of the intracavernous pressure then showed a rapid increase of the pressure curve followed by a stabilization at greater than or equal to 90 mHg. The flow to maintain the erection reach 1/3 of the flow needed to induce the erection. The venous leak is characterized by the absence of erection, no increase in intracavernous pressure and a rapid opacification of the vein. Artificial erection induced in impotent men allows to classify patients with vascular organic impotence into three categories: those with pure arterial insufficiency, those with pure venous leak, and patients with both.

Adolescent↗
PubMed1985

Lithiasic complications of renal transplantation: the donor graft lithiasis concept.

Lithiasis is usually a late complication of renal transplantation reported in approximately 1% of all renal allografts. Underlying predisposing conditions for the formation of calculi are present in almost all cases. Preexisting stones in the donor kidney have been reported once previously. The authors have observed 2 such cases, detected by routine sonography. In 1 case, stone migration into the ureter led to acute postoperative transplant failure; this complication has been reported previously.

Adult↗
PubMed1985

Intra-arterial chemotherapy of infiltrative bladder carcinoma.

Twenty patients with untreated invasive high stage or high grade transitional cell carcinoma of the bladder have been treated by bilateral intra-arterial hypogastric injection of adriamycin. A total of 160 mg of adriamycin were injected during the procedure which was repeated once 3-4 weeks later. Eleven patients received two full courses of chemotherapy. In 4 patients, complete response with disappearance of all tumoral lesions was observed and in 1 patient, partial tumor regression was apparent. One patient died from pulmonary disease. Five patients received only a partial treatment because of technical difficulties, and selective catheterization was impossible in 4 because of severe arteriosclerotic lesions. No response was seen in those cases. Although this new therapeutic modality remains to be fully evaluated, preliminary results appear most encouraging since intra-arterial chemotherapy can be used safely and is effective in patients with invasive bladder carcinoma.

Aged↗
PubMed1985

Sonographic features of portal vein thrombosis.

The ability of real-time sonography to demonstrate the liver venous network is well documented. Sonographic features of 21 cases of unsuspected portal vein thrombosis, detected by a screening sonography of the upper abdomen and subsequently confirmed by computed tomography, angiography, or surgery, are discussed. Sonographic features of portal vein thrombosis were an echogenic thrombus within the lumen of the vein (67%), demonstration of portal vein collateral circulation (48%), enlargement of the thrombosed segment of the vein (38%), and the so-called cavernomatous transformation of the portal vein (19%). Echogenic endoluminal thrombi were observed with the same incidences in malignant and benign disease. Sonography, unlike angiography, was unable to characterize neoplastic thrombi; only the combination of an echogenic thrombus and an adjacent hepatic mass was strongly suggestive of malignancy, especially hepatoma. The extensive use of sonography as a screening test in upper abdomen pathology will probably improve the detection of portal vein thrombosis, a diagnosis until now considered rare.

Adult↗